Mitsubishi Chemical Corporation

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C08J 5/18 - Manufacture of films or sheets 136
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) 128
C07B 61/00 - Other general methods 126
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1.

LAMINATE

      
Application Number JP2025030937
Publication Number 2026/053953
Status In Force
Filing Date 2025-09-02
Publication Date 2026-03-12
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Ikubo Satoshi
  • Taniguchi Masahiko

Abstract

The invention described below is provided as a laminate that has excellent coextrusion moldability, oxygen barrier properties, and mechanical strength. A laminate comprising at least two layers, including a resin composition layer α that contains a polyester-based resin (A) and a resin composition layer β that contains a polyvinyl-alcohol-based resin (B), wherein the melting point of the resin composition that contains the polyester-based resin (A) is 150°C or lower, and the melting point of the resin composition that contains the polyvinyl-alcohol-based resin (B) is 180°C or lower.

IPC Classes  ?

  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B65D 65/40 - Applications of laminates for particular packaging purposes

2.

LAMINATE

      
Application Number JP2025030914
Publication Number 2026/053943
Status In Force
Filing Date 2025-09-02
Publication Date 2026-03-12
Owner
  • NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY (Japan)
  • TECHLAB CO., LTD. (Japan)
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Okura, Takuya
  • Kan, Tomoshige
  • Takahashi, Takashi
  • Tsuji, Hiroyuki
  • Ozaki, Tsuyoshi
  • Nakagoshi, Akira

Abstract

A purpose of the present invention is to provide a laminate which has high heat transport capacity, high strength, and small specific gravity, and which an be applied to an electronic apparatus. The present invention provides a laminate (1) including a plurality of first layers (2) formed from a carbon fiber composite material and a plurality of second layers (3) formed from a graphite sheet, the first layers (2) and the second layers (3) being laminated, and the laminate (1) having a region in which the first layers (2) are connected to each other.

IPC Classes  ?

  • B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
  • B32B 3/18 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an internal layer formed of separate pieces of material
  • B32B 5/28 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
  • B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
  • C01B 32/21 - After-treatment

3.

WATER-SOLUBLE FILM, PACKAGING, DRUG PACKAGING, AND PRODUCTION METHOD THEREFOR

      
Application Number JP2025027714
Publication Number 2026/048437
Status In Force
Filing Date 2025-08-05
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Muramatsu Yusuke
  • Tokoro Miki
  • Kaneta Kenji

Abstract

Provided is a water-soluble film such that increases in dissolution time can be suppressed even if the water-soluble film is stored in contact with a drug for an extended period of time. Specifically provided is a water-soluble film comprising a polyvinyl alcohol resin and a plasticizer, wherein the polyvinyl alcohol resin contains radiocarbon C14, and at least 12 mass% of the plasticizer is included with respect to 100 mass% of the water-soluble film.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • C08K 5/053 - Polyhydroxylic alcohols
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C08F 8/12 - Hydrolysis
  • C08F 216/06 - Polyvinyl alcohol

4.

POLY(VINYL ALCOHOL)-BASED FILM, AND POLARIZING FILM AND POLARIZING PLATE OBTAINED USING SAME

      
Application Number JP2025030038
Publication Number 2026/048839
Status In Force
Filing Date 2025-08-27
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Araki Hiyori

Abstract

In order to provide a poly(vinyl alcohol)-based film which exhibits excellent stretchability and can suppress breaking during production of a polarizing film even if the film is made thinner, the present invention provides a poly(vinyl alcohol) film which has a thickness of 5-50 μm, and in which the ratio (TD/MD) of the elastic modulus in the machine direction (MD) and the elastic modulus in the transverse direction (TD) is 0.95 or more when elastic modulus is measured in water at 30ºC.

IPC Classes  ?

5.

POLYVINYL ALCOHOL-BASED FILM, POLARIZATION FILM USING SAME, AND POLARIZATION PLATE

      
Application Number JP2025030039
Publication Number 2026/048840
Status In Force
Filing Date 2025-08-27
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Nishibe Shun
  • Kayaba Yuki

Abstract

The present invention provides a polyvinyl alcohol-based film from which it is possible to obtain a polarization film having high polarization performance even when formed into a thin film, particularly a polarization film excelling in a high degree of polarization and in orthogonal transmittance on long-wavelength and short-wavelength sides, in a well-balanced manner. The polyvinyl alcohol-based film has a film thickness of 5-35 μm, a crystal long period shorter than 10 nm as measured with a small-angle X-ray scattering method, and an amorphous thickness of 6.6 nm or smaller as measured with a small-angle X-ray scattering method.

IPC Classes  ?

6.

COMPOSITION AND PHOTOELECTRIC CONVERSION ELEMENT

      
Application Number JP2025030103
Publication Number 2026/048866
Status In Force
Filing Date 2025-08-27
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Iida, Kouichiro
  • Harada, Chihiro
  • Li, Yanjun

Abstract

Disclosed is a composition for forming a hole transport layer, the composition containing a charge transport polymer having a unit which is represented by a specific structural formula, tetraaryl borate ions, a first solvent that is an aromatic compound containing an oxygen atom, and a second solvent that does not contain an oxygen atom. The present invention can provide: a composition which contains a polymer having an aromatic amine structural unit and an electron-accepting compound that improves conductivity, contains a mixed solvent that sufficiently dissolves the polymer and the electron-accepting compound, and can be suitably applied to the formation of a hole transport layer; and a photoelectric conversion element which has a hole transport layer that is formed using the composition.

IPC Classes  ?

  • C08L 79/02 - Polyamines
  • C07C 15/02 - Monocyclic hydrocarbons
  • C07C 43/205 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring the aromatic ring being a non-condensed ring
  • C07C 69/78 - Benzoic acid esters
  • C07F 5/02 - Boron compounds
  • C08K 5/03 - Halogenated hydrocarbons aromatic
  • C08K 5/06 - EthersAcetalsKetalsOrtho-esters
  • C08K 5/55 - Boron-containing compounds
  • H10K 30/40 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers
  • H10K 30/50 - Photovoltaic [PV] devices
  • H10K 30/86 - Layers having high hole mobility, e.g. hole-transporting layers or electron-blocking layers

7.

ELECTROMAGNETIC WAVE ABSORBING MATERIAL AND ELECTROMAGNETIC WAVE ABSORBING SHEET

      
Application Number JP2025030917
Publication Number 2026/049056
Status In Force
Filing Date 2025-09-02
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Nishida Ryo
  • Mitsuta Yoshitsugu
  • Maruyama Hiraku

Abstract

x1-x3-y3-yRE In formula (1), M indicates one or more alkaline earth metal elements, Q indicates one or more transition metals, RE indicates one or more rare earth elements, and x and y satisfy the following relationships. 0.0≤x<1.0, 0.00≤y<0.05

IPC Classes  ?

  • H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
  • H01B 1/00 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors
  • H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon

8.

OIL AND FAT COMPOSITION, CHOCOLATE PRODUCTS, FOOD, METHOD FOR PRODUCING FOOD, AND METHOD FOR SUPPRESSING HARDENING OF OIL AND FAT COMPOSITION AFTER BAKING

      
Application Number JP2025030945
Publication Number 2026/049058
Status In Force
Filing Date 2025-09-02
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Shioguchi Kaoru
  • Aibara Tomohiro

Abstract

The present invention relates to an oil and fat composition that contains a sucrose fatty acid ester having a hydrophilic lipophilic balance (HLB) value of 1 to 9, a dairy component, a saccharide, and an oil and fat, wherein the content ratio of the dairy component is 10 mass% or more, and the iodine value of the oil and fat is 50 or more.

IPC Classes  ?

  • A23D 9/00 - Other edible oils or fats, e.g. shortenings or cooking oils
  • A21D 13/80 - Pastry not otherwise provided for elsewhere, e.g. cakes, biscuits or cookies
  • A23G 1/38 - Cocoa butter substitutes

9.

WATER-SOLUBLE FILM, PACKAGING, DRUG PACKAGING, AND PRODUCTION METHOD THEREFOR

      
Application Number JP2025027715
Publication Number 2026/048438
Status In Force
Filing Date 2025-08-05
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Muramatsu Yusuke
  • Tokoro Miki
  • Kaneta Kenji

Abstract

Provided is a water-soluble film that exhibits superior basic material properties such as tensile strength, tensile elongation, and elastic modulus at 8% elongation. Specifically provided is a water-soluble film comprising a polyvinyl alcohol resin and a plasticizer, said water-soluble film containing at least 13 parts by mass of the plasticizer with respect to 100 parts by mass of the polyvinyl alcohol resin, and having a pMC value for radiocarbon C14 as measured in accordance with ASTM D6866 (Method B) of at least 60%.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • C08K 5/053 - Polyhydroxylic alcohols
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C08F 8/12 - Hydrolysis
  • C08F 216/06 - Polyvinyl alcohol

10.

MULTILAYER STRUCTURE, RECYCLABLE COMPOSITION, AND RECYCLABLE MOLDED BODY

      
Application Number JP2025030002
Publication Number 2026/048824
Status In Force
Filing Date 2025-08-27
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Teraoka Kota

Abstract

Provided is a multilayer structure described below that does not cause a decrease in tear strength before recycling and does not produce a crosslinked gel after being recycled, and in which a decrease in impact resistance is suppressed. The multilayer structure comprises a resin layer (A) containing an ethylene-vinyl alcohol copolymer and a polyolefin resin layer (B). The polyolefin resin layer (B) contains a polyolefin resin (b1) and an amine-modified resin (b2). The content of the amine-modified resin (b2) in the polyolefin resin layer (B) is between 12 and 280 parts by mass (both inclusive) with respect to 100 parts by mass of the ethylene-vinyl alcohol copolymer in the resin layer (A). The polyolefin resin layer (B) in the resin layer (A) does not contain an ethylene-vinyl alcohol copolymer.

IPC Classes  ?

  • B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/34 - Layered products essentially comprising synthetic resin comprising polyamides
  • C08L 23/06 - Polyethene
  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes

11.

THERMOPLASTIC RESIN COMPOSITION, COMPATIBILIZER, MULTILAYER STRUCTURE, METHOD FOR MANUFACTURING THERMOPLASTIC RESIN COMPOSITION, PACKAGE, AND FOOD PACKAGE

      
Application Number JP2025030003
Publication Number 2026/048825
Status In Force
Filing Date 2025-08-27
Publication Date 2026-03-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Teraoka Kota
  • Kikuchi Kouhei

Abstract

The present invention provides the following as a thermoplastic resin composition capable of improving compatibility between different types of resins in a mixed resin, preventing generation of phase-separated foreign matter (gum), preventing generation of gel and deterioration of color tone, and improving transparency of an obtained molded article, and simultaneously having excellent impact resistance. A thermoplastic resin composition containing an amine-modified resin (A) and a copolymer (B) having a structural unit derived from maleic anhydride, wherein the mass ratio of the amine-modified resin (A) to the copolymer (B) having a structural unit derived from maleic anhydride is 65/35 to 99/1 in terms of A/B.

IPC Classes  ?

  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • C08L 23/02 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L 23/08 - Copolymers of ethene

12.

COMMUNICATION DEVICE SUBSTRATE FILM, WOUND BODY, COMMUNICATION DEVICE MEMBER, AND COMMUNICATION DEVICE

      
Application Number JP2024029773
Publication Number 2026/042222
Status In Force
Filing Date 2024-08-22
Publication Date 2026-02-26
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Suzuki Seigo

Abstract

The present invention addresses the problem of providing a resin film that has excellent low-dielectric properties and excellent adhesiveness to metal bodies. The present invention relates to a communication device substrate film comprising a modified polyolefin (A), wherein a resin constituting the communication device substrate film contains not less than 50 mass% of an olefin unit as a constituent monomer unit. The present invention also relates to: a communication device member having a communication device substrate film; a communication device; an antenna; and a flat cable.

IPC Classes  ?

13.

PRIMER COMPOSITION, LAMINATE, AND METHOD FOR PRODUCING RECYCLED SUBSTRATE

      
Application Number JP2025028155
Publication Number 2026/042610
Status In Force
Filing Date 2025-08-07
Publication Date 2026-02-26
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Sugawa, Tsuyoshi
  • Nara, Tomoki
  • Hoashi, Nana
  • Oonuma, Taeko

Abstract

This primer composition contains an amphoteric polymer (A) and a water-soluble polymer (B) other than the amphoteric polymer (A), wherein the amphoteric polymer (A) comprises a structure represented by formula (1). The primer composition is capable of forming a primer layer with which it is possible to recover a substrate by simply removing an object to be removed from the substrate by means of immersion into hot water. The stickiness of a primer layer formed of the primer composition is suppressed, and the primer composition has excellent handleability. (In formula (1), Y+is -S+R3- or -N+R4R5-, Z-33 -22(OR6)-, n is an integer of 1 to 8, and m is an integer of 1 to 5. R3, R4, R5, and R6 are each independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and * is a binding site to another structure.)

IPC Classes  ?

  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
  • C09D 5/20 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
  • C09D 129/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C09D 133/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereofCoating compositions based on derivatives of such polymers
  • C09D 133/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
  • C09D 179/02 - Polyamines

14.

LIQUID CRYSTAL COMPOSITION, PHOTOCURED PRODUCT, AND LIGHT CONTROL ELEMENT

      
Application Number JP2025029286
Publication Number 2026/042834
Status In Force
Filing Date 2025-08-20
Publication Date 2026-02-26
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Shiga, Yasushi
  • Satou, Hideki
  • Komori, Takashi

Abstract

A liquid crystal composition containing a dichroic dye (A), a liquid crystal compound (B), a photocurable compound (C), and a photopolymerization initiator (D), wherein the dichroic dye (A) contains at least one selected from a compound (A1) represented by general formula (1) and a compound (A2) having a molecular weight of 540 g/mol or less and represented by general formula (2). (In formula (1), X1to X4are each independently -S-Ar or -OH, and Ar represents an aryl group. Ar may have a linear or branched alkyl group, a haloalkyl group, an alkoxy group, a cycloalkyl group, an aryl group, a heterocyclic group, or a halogen atom as a substituent. Two of X1to X4are -S-Ar and the remaining two are -OH. R1to R4each independently represent a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, a phenyl group which may have a substituent, or a phenoxy group which may have a substituent.) (In formula (2), R11to R15each independently represent a hydrogen atom, an alkyl group which may have a substituent, or an alkoxy group which may have a substituent. R21to R25 each independently represent a hydrogen atom, an alkyl group which may have a substituent, or an alkoxy group which may have a substituent.)

IPC Classes  ?

  • G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
  • C09K 19/12 - Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
  • C09K 19/38 - Polymers, e.g. polyamides
  • C09K 19/54 - Additives having no specific mesophase
  • C09K 19/60 - Pleochroic dyes
  • G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
  • G02F 1/1334 - Constructional arrangements based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals

15.

HEAT STORAGE MATERIAL, BATTERY PACK, COMPOSITION, AND COMPOSITION KIT

      
Application Number JP2025027618
Publication Number 2026/034467
Status In Force
Filing Date 2025-08-04
Publication Date 2026-02-12
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Furo, Chizuko
  • Tsujimoto, Takayuki
  • Nishiguchi, Kouji
  • Kawai, Tomohiro
  • Maki, Akira

Abstract

This heat storage material contains a polyurethane. The polyurethane undergoes a solid phase-solid phase phase transition in a process at 20-80°C in differential scanning calorimetric measurements. The enthalpy change amount associated with the phase transition is 20 J/g or more. The combustion time of a test piece in the following measurement method is 60 seconds or less. (Measurement method) A test piece (125 mm×13 mm×2.0 mm) is attached vertically to a clamp, a flame contact test is carried out for 10 seconds with a 20 mm flame, and the combustion time is measured.

IPC Classes  ?

16.

RESIN COMPOSITION, MOLDING MATERIAL, RESIN MOLDED BODY, AND ADDITIVE FOR POLYESTER-BASED ELASTOMER

      
Application Number JP2025026447
Publication Number 2026/028945
Status In Force
Filing Date 2025-07-25
Publication Date 2026-02-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Otani, Go
  • Miura, Junji
  • Kuwahara, Atsushi
  • Jang, Kwangkyun

Abstract

Provided are: a resin composition, a molding material, and a resin molded body having exceptional flexibility, oil resistance, and tensile elongation; and an additive for a polyester-based elastomer. This resin composition contains a polyester-based elastomer (A), and a (meth)acrylic copolymer (B) that is a block copolymer and/or a graft copolymer. This molding material uses the resin composition. This resin molded body is obtained by molding the molding material. The acrylic copolymer (B) is preferably a block copolymer and/or a graft copolymer containing, in the same molecule, a polymer (B1) that contains 60 mass% or more of units derived from methyl methacrylate and a polymer (B2) that has a glass transition temperature of 0°C or lower.

IPC Classes  ?

  • C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
  • C08L 33/04 - Homopolymers or copolymers of esters
  • C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
  • C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers

17.

POLYESTER FILM AND APPLICATION THEREOF

      
Application Number JP2025027145
Publication Number 2026/029137
Status In Force
Filing Date 2025-07-31
Publication Date 2026-02-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Suzuki, Tomohiro
  • Sasada, Daiki

Abstract

The present invention addresses the problem of providing a polyester film which contains a recycled polyester resin and has excellent thermal deformation resistance. The present invention relates to a polyester film which comprises a film-derived or fiber-derived chemical recycled polyester resin, wherein the value obtained by dividing the thermal shrinkage (%) of MD when heated at 120°C for 5 minutes by the intrinsic viscosity (dL/g) is less than 1.28.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

18.

COMPOSITION FOR HOLOGRAPHIC RECORDING MEDIUM, CURED PRODUCT FOR HOLOGRAPHIC RECORDING MEDIUM, AND HOLOGRAPHIC RECORDING MEDIUM

      
Application Number JP2025026941
Publication Number 2026/029087
Status In Force
Filing Date 2025-07-30
Publication Date 2026-02-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yamada, Ryosuke
  • Shimizu, Takanori

Abstract

The present invention provides a composition for a holographic recording medium, the composition being capable of suppressing generation of a colored body or a light-emitting body that is derived from an oxime ester photopolymerization initiator and effectively suppressing undesirable phenomena such as loss of light and color change of a display image without greatly lowering hologram characteristics. Disclosed is a composition for a holographic recording medium, which contains the following components (a) to (f). Component (a): an isocyanate compound which does not contain an aromatic ring or a methacrylate group; Component (b): a polycaprolactone polyol; Component (c): an acrylate monomer; Component (d): an oxime ester photopolymerization initiator; Component (e): a compound which has a nitroxyl radical group and an isocyanate-reactive functional group; Component (f): a compound which has an isocyanate group and a methacrylate group, or a compound which has an isocyanate-reactive functional group and a methacrylate group

IPC Classes  ?

  • G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
  • C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
  • C08K 5/30 - HydrazonesSemicarbazones
  • C08K 5/32 - Compounds containing nitrogen bound to oxygen
  • C08K 5/33 - Oximes
  • C08K 5/101 - EstersEther-esters of monocarboxylic acids
  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • G02B 5/32 - Holograms used as optical elements
  • G11B 7/0065 - Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
  • G11B 7/24044 - Recording layers for storing optical interference patterns, e.g. hologramsRecording layers for storing data in three dimensions, e.g. volume storage

19.

ZEOLITE, METHOD FOR PRODUCING ZEOLITE, RESIN COMPOSITION, SEMICONDUCTOR SEALING MATERIAL, METHOD FOR PRODUCING SEMICONDUCTOR SEALING MATERIAL, AND ELECTRONIC DEVICE

      
Application Number JP2025027058
Publication Number 2026/029110
Status In Force
Filing Date 2025-07-30
Publication Date 2026-02-05
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Tanaka, Yutaro
  • Ohnishi, Ryohji
  • Hikima, Shu
  • Katagiri, Noriko
  • Yamada, Hiroto
  • Takewaki, Takahiko

Abstract

Provided is a zeolite which, when heated to 800°C at a temperature increase rate of 10°C/min and then held for 10 minutes at 800°C in an air atmosphere in thermogravimetric analysis (TGA), the weight loss rate at 800°C is 1% or more based on the weight at 400°C, and in which the total content of uranium and thorium is 200 ppb by mass or less. The present invention can provide a zeolite which exhibits low moisture absorption, has a low alpha ray amount, and can be advantageously used as a semiconductor sealing material.

IPC Classes  ?

  • C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
  • C08K 3/34 - Silicon-containing compounds
  • C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
  • C08L 101/00 - Compositions of unspecified macromolecular compounds
  • H01L 23/29 - Encapsulation, e.g. encapsulating layers, coatings characterised by the material
  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement

20.

METHOD FOR PRODUCING ETHYLENE-VINYL ESTER COPOLYMER, AND SAPONIFIED ETHYLENE-VINYL ESTER COPOLYMER

      
Application Number JP2025025773
Publication Number 2026/023576
Status In Force
Filing Date 2025-07-18
Publication Date 2026-01-29
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Mizukawa Junichi

Abstract

Provided is a method for producing an ethylene-vinyl ester copolymer, in which coloration due to thermal degradation can be suppressed in a saponified ethylene-vinyl ester copolymer. The method for producing an ethylene-vinyl ester copolymer by copolymerizing a vinyl ester monomer and ethylene, wherein the polymerization activity of the vinyl ester monomer, as measured using the measurement method described below, is 550 seconds or more. Measurement method: a glass test tube containing 10 mL of a vinyl ester monomer and 0.130 g of lauroyl peroxide as a polymerization catalyst is immersed in a constant temperature bath at 20°C, the polymerization catalyst is dissolved in the vinyl ester monomer, the number of seconds between a point when the test tube is immersed in a constant temperature bath at 65.0ºC and a point when foam is generated and the height from the surface of a foam layer to the bottom of the foam layer is 3 mm or more is measured, and this number of seconds is taken to be the polymerization activity.

IPC Classes  ?

  • C08F 218/04 - Vinyl esters
  • B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
  • C08F 2/40 - Polymerisation using regulators, e.g. chain terminating agents using retarding agents
  • C08F 8/12 - Hydrolysis
  • C08F 210/02 - Ethene
  • C08F 216/06 - Polyvinyl alcohol
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

21.

METHOD FOR PRODUCING α-METHYLENE ALDEHYDE COMPOUND, AND METHODS FOR PRODUCING α-METHYLENE CARBOXYLIC ACID AND α-METHYLENE CARBOXYLIC ACID ESTER

      
Application Number JP2025026203
Publication Number 2026/023660
Status In Force
Filing Date 2025-07-24
Publication Date 2026-01-29
Owner
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Japan)
Inventor
  • Nishio Takuma
  • Ito Mitsunobu
  • Otomo Ryoichi
  • Kamiya Yuichi

Abstract

The present invention provides a method for economically producing an α-methylene aldehyde compound via a condensation reaction between a formaldehyde and an aldehyde compound, while suppressing the use of a liquid acid. Used is a method for producing an α-methylene aldehyde compound, wherein an α-methylene aldehyde compound represented by general formula (2) is produced via a condensation reaction between a formaldehyde and an aldehyde compound represented by general formula (1) in the presence of a metal oxide catalyst and an amine. (In general formula (1), R1 represents a C1-7 aliphatic hydrocarbon group, and in general formula (2), R1 represents a C1-7 aliphatic hydrocarbon group.)

IPC Classes  ?

22.

PRODUCTION METHOD FOR α-METHYLENE ALDEHYDE COMPOUND AND PRODUCTION METHOD FOR α-METHYLENE CARBOXYLIC ACID AND α-METHYLENE CARBOXYLIC ACID ESTER

      
Application Number JP2025026204
Publication Number 2026/023661
Status In Force
Filing Date 2025-07-24
Publication Date 2026-01-29
Owner
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
  • NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Japan)
Inventor
  • Nishio Takuma
  • Ito Mitsunobu
  • Otomo Ryoichi
  • Kamiya Yuichi

Abstract

Provided is a novel method that makes it possible to economically produce an α-methylene aldehyde compound by condensation of formaldehyde and an aldehyde compound. The present invention is a production method for an α-methylene aldehyde compound that involves condensing formaldehyde and an aldehyde compound represented by general formula (1) in the presence of a metal oxide catalyst to produce an α-methylene aldehyde compound represented by general formula (2). (In general formula (1), R1 represents a C1–7 aliphatic hydrocarbon group.) (In general formula (2), R1 represents a C1–7 aliphatic hydrocarbon group.)

IPC Classes  ?

23.

THERMOPLASTIC RESIN COMPOSITION AND MOLDED PRODUCT THEREOF

      
Application Number JP2025025151
Publication Number 2026/023469
Status In Force
Filing Date 2025-07-14
Publication Date 2026-01-29
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Yamamoto, Daisuke

Abstract

This thermoplastic resin composition comprises a thermoplastic resin (A), flat-cross-section glass fibers (B), and glass flakes (C). The thermoplastic resin (A) contains more than 10 mass% but not more than 80 mass% of a polycarbonate resin (A1) and not less than 20 mass% but less than 90 mass% of a thermoplastic polyester resin (A2). The sum of the contents of the flat-cross-section glass fibers (B) and the glass flakes (C) is 10 to 50 parts by mass inclusive with respect to 100 parts by mass of the sum of the contents of the thermoplastic resin (A), the flat-cross-section glass fibers (B), and the glass flakes (C). The average thickness of the glass flakes (C) is less than 0.45 μm.

IPC Classes  ?

  • C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
  • C08K 3/40 - Glass
  • C08K 7/00 - Use of ingredients characterised by shape
  • C08K 7/14 - Glass
  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 101/00 - Compositions of unspecified macromolecular compounds

24.

OIL-IN-WATER EMULSION COMPOSITION, METHOD FOR PRODUCING OIL-IN-WATER EMULSION COMPOSITION, FINE PARTICLE EMULSIFIER, FOOD, MILK SUBSTITUTE, PHARMACEUTICAL, COSMETIC, AND PERSONAL CARE PRODUCT

      
Application Number JP2025026335
Publication Number 2026/023673
Status In Force
Filing Date 2025-07-24
Publication Date 2026-01-29
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hanasaki, Minako
  • Matsuura, Tsutashi
  • Mukuda, Takahiro
  • Fujii, Syuji

Abstract

Provided is an emulsion composition exhibiting excellent emulsion stability. An oil-in-water emulsion composition according to one example of the present invention comprises water, oil, and solid particles, wherein the solid particles are present at the interface between the water and the oil, at least a part of the solid particles are plant proteins, and the content ratio of the amphipathic substance to the plant proteins is less than 0.021.

IPC Classes  ?

  • A23D 7/005 - Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by ingredients other than fatty acid triglycerides
  • A23C 11/10 - Milk substitutes, e.g. coffee whitener compositions containing at least one non-milk component as source of fats or proteins containing or not lactose but no other milk components as source of fats, carbohydrates or proteins
  • A23L 11/60 - Drinks from legumes, e.g. lupine drinks
  • A23L 11/65 - Soy drinks
  • A61K 8/06 - Emulsions
  • A61K 8/55 - Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing phosphorus
  • A61K 8/64 - ProteinsPeptidesDerivatives or degradation products thereof
  • A61K 9/107 - Emulsions
  • A61K 47/24 - Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing atoms other than carbon, hydrogen, oxygen, halogen, nitrogen or sulfur, e.g. cyclomethicone or phospholipids
  • A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
  • A61Q 1/00 - Make-up preparationsBody powdersPreparations for removing make-up
  • A61Q 19/00 - Preparations for care of the skin

25.

EMULSION COMPOSITION, METHOD FOR PRODUCING SAME, AND FOOD, MILK SUBSTITUTE, PHARMACEUTICAL, COSMETIC AND PERSONAL CARE PRODUCT CONTAINING EMULSION COMPOSITION

      
Application Number JP2025026491
Publication Number 2026/023693
Status In Force
Filing Date 2025-07-25
Publication Date 2026-01-29
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Hanasaki, Minako

Abstract

The present invention relates to an oil-in-water emulsion composition which contains solid particles, water, an oil and fat, and at least one component selected from the group consisting of alkali metal salts and polysaccharides, wherein the solid particles are present at the interface between the water and the oil and fat, the solid particles contain gramineous plant-derived proteins, and the content of the gramineous plant-derived proteins relative to the total mass of the solid particles is 50-100 mass %.

IPC Classes  ?

  • A23D 7/005 - Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by ingredients other than fatty acid triglycerides
  • A23C 11/10 - Milk substitutes, e.g. coffee whitener compositions containing at least one non-milk component as source of fats or proteins containing or not lactose but no other milk components as source of fats, carbohydrates or proteins
  • A23L 11/60 - Drinks from legumes, e.g. lupine drinks
  • A23L 11/65 - Soy drinks
  • A23L 29/20 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing gelling or thickening agents
  • A61K 8/06 - Emulsions
  • A61K 8/19 - Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K 8/73 - Polysaccharides
  • A61K 8/92 - Oils, fats or waxesDerivatives thereof, e.g. hydrogenation products
  • A61K 8/9794 - Liliopsida [monocotyledons]
  • A61K 9/10 - DispersionsEmulsions
  • A61K 47/02 - Inorganic compounds
  • A61K 47/36 - PolysaccharidesDerivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
  • A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
  • A61K 47/44 - Oils, fats or waxes according to two or more groups of Natural or modified natural oils, fats or waxes, e.g. castor oil, polyethoxylated castor oil, montan wax, lignite, shellac, rosin, beeswax or lanolin

26.

PHENOLIC COMPOSITION AND METHOD FOR ENHANCING BIODEGRADABILITY AND/OR PHOTOSTABILITY THEREOF

      
Application Number JP2025024682
Publication Number 2026/014481
Status In Force
Filing Date 2025-07-09
Publication Date 2026-01-15
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Maruyama Satoshi
  • Yamamoto Yasuhito
  • Hayashi Takahiro
  • Oura Sasano Haruka
  • Kanaoka Ryousuke

Abstract

Provided is a phenolic composition having enhanced biodegradability and/or photostability, said composition containing a phenol and one or more substances selected from among amino acids, organic acids, and salts of these acids.

IPC Classes  ?

  • C07C 39/04 - Phenol
  • C02F 3/12 - Activated sludge processes
  • C09K 3/00 - Materials not provided for elsewhere
  • C09K 15/06 - Anti-oxidant compositionsCompositions inhibiting chemical change containing organic compounds containing oxygen
  • C09K 15/08 - Anti-oxidant compositionsCompositions inhibiting chemical change containing organic compounds containing oxygen containing a phenol or quinone moiety
  • C09K 15/20 - Anti-oxidant compositionsCompositions inhibiting chemical change containing organic compounds containing nitrogen and oxygen
  • C12N 1/20 - BacteriaCulture media therefor

27.

PHENOLIC COMPOSITION AND METHOD FOR ENHANCING BIODEGRADABILITY AND/OR PHOTOSTABILITY THEREOF

      
Application Number JP2025024717
Publication Number 2026/014492
Status In Force
Filing Date 2025-07-09
Publication Date 2026-01-15
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Maruyama Satoshi
  • Yamamoto Yasuhito
  • Hayashi Takahiro
  • Oura Sasano Haruka
  • Kanaoka Ryousuke

Abstract

Provided is a phenolic composition having enhanced biodegradability and/or photostability, said composition containing a phenol and at least one compound containing one or more atoms selected from among nitrogen, sulfur, and phosphorous.

IPC Classes  ?

  • C07C 39/04 - Phenol
  • C02F 3/12 - Activated sludge processes
  • C09K 3/00 - Materials not provided for elsewhere
  • C09K 15/02 - Anti-oxidant compositionsCompositions inhibiting chemical change containing inorganic compounds
  • C09K 15/08 - Anti-oxidant compositionsCompositions inhibiting chemical change containing organic compounds containing oxygen containing a phenol or quinone moiety
  • C12N 1/20 - BacteriaCulture media therefor

28.

COMPOUND, PHOTOSENSITIVE COMPOSITION CONTAINING SAID COMPOUND, PATTERN FORMING METHOD USING SAID COMPOSITION, SUBSTRATE, AND METHOD FOR PRODUCING SUBSTRATE

      
Application Number JP2025023607
Publication Number 2026/009885
Status In Force
Filing Date 2025-07-01
Publication Date 2026-01-08
Owner
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
  • NATIONAL INSTITUTES FOR QUANTUM SCIENCE AND TECHNOLOGY (Japan)
Inventor
  • Ishibashi Koichi
  • Hattori Shigeki
  • Akita Takuya
  • Nagayama Kazuhiro
  • Tamada Atsuhiro
  • Yamamoto Hiroki

Abstract

Provided are: a compound with which it is possible to achieve miniaturization of a circuit pattern; and a photosensitive composition which contains said compound. A compound according to the present invention has a metal atom and a ligand, and is characterized in that the ligand includes a partial structure that is represented by formula (1). In formula (1), R1and R2each represent a hydrogen atom or an arbitrary substituent, may be the same as or different from each other, and may form a ring. However, R1and R2are not hydrogen atoms at the same time. R3 represents an α-hydrogen-containing substituent on the oxygen side of the carbamate.

IPC Classes  ?

  • C07F 9/94 - Bismuth compounds
  • C07D 211/60 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
  • G03F 7/004 - Photosensitive materials
  • G03F 7/20 - ExposureApparatus therefor

29.

POLYMER COMPOUND PRODUCTION METHOD

      
Application Number JP2025023863
Publication Number 2026/009928
Status In Force
Filing Date 2025-07-02
Publication Date 2026-01-08
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yagisawa, Ryouichi
  • Mukai, Kazuaki
  • Kina, Taichi
  • Oono, Fumi

Abstract

Provided is a method for producing a polymer compound which has more uniform solubility in a developer and is useful as a polymer for a photoresist. This method for producing a polymer compound is a liquid-liquid extraction method, involving a polymerization step for polymerizing a monomer composition that includes a monomer, a polymerization solvent, and a polymerization initiator to obtain a polymerization reaction product including the polymer compound, and a recovery step for extracting and separating the polymer compound using a plurality of solvents, and recovering same, wherein a solvent A and a solvent B are used in the recovery step; the solvent A is an organic solvent having a Hansen solubility parameter (HSP) value in which δD = 10-20, 0 ≤ δP < 2, and δH = 0-4; the solvent B is an organic solvent having an HSP value in which δD = 10-20, δP = 5-15, and δH = 4-40; and in the recovery step, the polymer compound is extracted into the solvent B phase, a low molecular component in the polymerization reaction product is extracted into the solvent A phase, and the solvent B phase is separated and recovered.

IPC Classes  ?

  • C08F 6/12 - Separation of polymers from solutions
  • G03F 7/039 - Macromolecular compounds which are photodegradable, e.g. positive electron resists

30.

POLYMER COMPOUND PRODUCTION METHOD

      
Application Number JP2025023872
Publication Number 2026/009931
Status In Force
Filing Date 2025-07-02
Publication Date 2026-01-08
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yagisawa, Ryouichi
  • Mukai, Kazuaki
  • Oono, Fumi

Abstract

The present invention addresses the problem of providing: a polymer compound useful as a polymer for a photoresist, in which a polymer component is removed from a polymerization reaction product and solubility in a developer is more uniform; and a method for producing same. The method for producing a polymer compound involves: a polymerization step for polymerizing a monomer composition containing a monomer, a polymerization solvent, and a polymerization initiator to obtain a polymerization reaction product containing a polymer compound, and a recovery step for extracting and separating the polymer compound using a plurality of solvents, and recovering same, wherein in elution curves obtained by gel permeation chromatography analysis of the polymer compound after the polymerization step and after the extraction separation, when the cumulative area on the higher molecular weight side than a peak top is denoted as S1b (after the polymerization step) or S1a (after the extraction separation), and the cumulative area on the higher molecular weight side than an intermediate point between the peak rise and the peak top is denoted as S2b (after the polymerization step) or S2a (after the extraction separation), (S2a/S1a)/(S2b/S1b) < 1 is satisfied.

IPC Classes  ?

  • C08F 6/12 - Separation of polymers from solutions
  • G03F 7/039 - Macromolecular compounds which are photodegradable, e.g. positive electron resists

31.

ADHESIVE COMPOSITION, ADHESIVE AND ADHESIVE SHEET

      
Application Number JP2025023948
Publication Number 2026/009947
Status In Force
Filing Date 2025-07-03
Publication Date 2026-01-08
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Sakamoto Kento

Abstract

Provided an adhesive composition which has adhesive properties equal to or higher than those of a solvent-type adhesive and excellent coating suitability, and can be easily crosslinked. The adhesive composition contains a polyester (A), wherein the polyester (A) contains a structural unit derived from a polyvalent carboxylic acid (a1) and a structural unit derived from a polyhydric alcohol (a2), and the polyester (A) has an ester bond concentration of 3.0-14 mmol/g, has fluidity at 25 °C, and has a viscosity of 500-500,000 mPa·s.

IPC Classes  ?

  • C09J 167/00 - Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chainAdhesives based on derivatives of such polymers
  • C09J 7/38 - Pressure-sensitive adhesives [PSA]
  • C09J 175/06 - Polyurethanes from polyesters

32.

COMPOSITION, POLYMER, HOLOGRAM RECORDING MEDIUM, OPTICAL MATERIAL, AND OPTICAL COMPONENT

      
Application Number JP2025023018
Publication Number 2026/004955
Status In Force
Filing Date 2025-06-26
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yabe, Akiko
  • Yamashita, Shuji
  • Nakura, Ryo
  • Inoue, Kazuma
  • Yamada, Ryo
  • Kadoma, Hiroshi

Abstract

Provided is a composition suitable for forming a cured film having high solvent resistance and a high refractive index. The composition comprises a polymerizable compound (A) and a polymerizable compound (B), wherein the content of the polymerizable compound (B) with respect to 100 parts by mass of the polymerizable compound (A) is 0.0001 parts by mass to 10 parts by mass. The polymerizable compound (A) has a structure represented by formula (1) and has a refractive index of 1.60 or more. The polymerizable compound (B) is represented by formula (2). (In formula (1), R1is a hydrogen atom or a methyl group. L1is a (n1+1)-valent linking group. n1is 1 or 2. In formula (2), R2is a hydrogen atom or a methyl group. L2is a (n2+1)-valent linking group. n2 is 1 or 2.)

IPC Classes  ?

  • C08F 220/36 - Esters containing nitrogen containing oxygen in addition to the carboxy oxygen
  • C07C 271/16 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
  • C07C 271/48 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to carbon atoms of six-membered aromatic rings with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
  • C07C 275/10 - Derivatives of urea, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms of an acyclic and saturated carbon skeleton being further substituted by singly-bound oxygen atoms
  • C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • G02B 5/32 - Holograms used as optical elements
  • G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
  • G11B 7/0065 - Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
  • G11B 7/244 - Record carriers characterised by the selection of the material of recording layers comprising organic materials only
  • G11B 7/24044 - Recording layers for storing optical interference patterns, e.g. hologramsRecording layers for storing data in three dimensions, e.g. volume storage

33.

METHOD FOR PRODUCING METHACRYLIC RESIN, METHOD FOR RECYCLING METHACRYLIC RESIN, METHACRYLIC RESIN, MONOMER COMPOSITION, AND METHACRYLIC RESIN COMPOSITION

      
Application Number JP2025023059
Publication Number 2026/004968
Status In Force
Filing Date 2025-06-26
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hirano, Yusuke
  • Ito, Hiroaki
  • Kajiwara, Tooru

Abstract

Provided is a method for producing a methacrylic resin, which is low in cost and in which foreign matter can be sufficiently removed from a plastic including a methacrylic resin. This method for producing a methacrylic resin involves: a step (A) for mixing a plastic including a methacrylic resin with an alcohol to dissolve the methacrylic resin; a step (B) for removing an insoluble content included in the solution obtained in the step (A) by solid-liquid separation; a step (C) for producing the methacrylic resin from the solution after the solid-liquid separation by a phase separation method; and a step (D) for removing the alcohol remaining in the methacrylic resin produced in the step (C) by compression or centrifugation.

IPC Classes  ?

  • C08J 11/08 - Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components

34.

COMPOUND, METHOD FOR PRODUCING SAID COMPOUND, PHOTOSENSITIVE COMPOSITION CONTAINING SAID COMPOUND, AND PATTERN FORMING METHOD, SUBSTRATE, AND METHOD FOR PRODUCING SUBSTRATE USING SAID COMPOSITION

      
Application Number JP2025023408
Publication Number 2026/005060
Status In Force
Filing Date 2025-06-30
Publication Date 2026-01-02
Owner
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
  • NATIONAL INSTITUTES FOR QUANTUM SCIENCE AND TECHNOLOGY (Japan)
Inventor
  • Yamamoto Keishi
  • Hattori Shigeki
  • Nagayama Kazuhiro
  • Akita Takuya
  • Kato Akane
  • Yamamoto Hiroki

Abstract

Provided are a compound capable of enabling miniaturization of a circuit pattern, and a photosensitive composition containing the same. This compound contains poor metal atoms and carboxylate ligands A, and is characterized in that: the carboxylate ligands A have an alicyclic structure to which carboxylate groups are bonded; the alicyclic structure has one double bond; and carbons bonded to the carboxylate groups are quaternary carbon.

IPC Classes  ?

  • C07C 61/22 - Unsaturated compounds having a carboxyl group bound to a six-membered ring
  • C07F 9/94 - Bismuth compounds
  • G03F 7/004 - Photosensitive materials
  • G03F 7/20 - ExposureApparatus therefor

35.

COMPOUND OR CLUSTER COMPOUND, METHOD FOR PRODUCING COMPOUND, PHOTOSENSITIVE COMPOSITION CONTAINING COMPOUND, PATTERN FORMING METHOD USING COMPOSITION, SUBSTRATE, AND METHOD FOR MANUFACTURING SUBSTRATE

      
Application Number JP2025023413
Publication Number 2026/005062
Status In Force
Filing Date 2025-06-30
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hattori Shigeki
  • Nagayama Kazuhiro
  • Kato Akane
  • Yamamoto Keishi
  • Akita Takuya
  • Yamamoto Hiroki

Abstract

1211 in the cyclic structure has a substituent R1. The substituent R1 is an organic group or a halogen atom.

IPC Classes  ?

  • C07C 61/22 - Unsaturated compounds having a carboxyl group bound to a six-membered ring
  • C07C 63/00 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings
  • C07C 69/75 - Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring of acids with a six-membered ring
  • C07D 307/89 - Benzo [c] furansHydrogenated benzo [c] furans with two oxygen atoms directly attached in positions 1 and 3
  • C07F 9/94 - Bismuth compounds
  • G03F 7/004 - Photosensitive materials
  • G03F 7/20 - ExposureApparatus therefor

36.

POOR METAL CLUSTER COMPOUND, MULTIMER STRUCTURE HAVING SAME, METHOD FOR PRODUCING SAME, PHOTOSENSITIVE COMPOSITION CONTAINING SAME, PATTERN FORMING METHOD USING SAID COMPOSITION, SUBSTRATE, AND METHOD FOR PRODUCING SUBSTRATE

      
Application Number JP2025023415
Publication Number 2026/005063
Status In Force
Filing Date 2025-06-30
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yamamoto Keishi
  • Hattori Shigeki
  • Nagayama Kazuhiro
  • Akita Takuya
  • Kato Akane
  • Yamamoto Hiroki

Abstract

The present invention provides a poor metal cluster compound that makes it possible to obtain a photosensitive composition that is highly useful as a photoresist capable of forming an ultrafine pattern. A poor metal cluster compound according to the present invention is characterized by containing a poor metal atom, a carboxylate ligand A, and an oxo ligand and/or a hydroxo ligand, the carboxylate ligand having an alicyclic structure that binds to a carboxylate group. The poor metal atom is preferably bismuth, antimony, indium, or the like. 

IPC Classes  ?

  • C07C 61/08 - Saturated compounds having a carboxyl group bound to a six-membered ring
  • C07C 61/22 - Unsaturated compounds having a carboxyl group bound to a six-membered ring
  • C07F 9/94 - Bismuth compounds
  • G03F 7/004 - Photosensitive materials
  • G03F 7/20 - ExposureApparatus therefor

37.

POROUS FILM, ION EXCHANGE MEMBRANE SUPPORT, AND POWER STORAGE DEVICE

      
Application Number JP2025018003
Publication Number 2026/004393
Status In Force
Filing Date 2025-05-19
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Harada Tomoaki

Abstract

BABA) is 5-80 kPa.

IPC Classes  ?

  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
  • B29C 67/20 - Shaping techniques not covered by groups , or for porous or cellular articles, e.g. of foam plastics, coarse-pored
  • H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
  • H01M 50/417 - Polyolefins
  • H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
  • H01M 50/491 - Porosity
  • B29K 23/00 - Use of polyalkenes as moulding material
  • B29K 25/00 - Use of polymers of vinyl-aromatic compounds as moulding material

38.

LAYERED POLYESTER FILM AND USE THEREOF

      
Application Number JP2025022273
Publication Number 2026/004760
Status In Force
Filing Date 2025-06-20
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Nakagawa Yohei

Abstract

The present invention addresses the problem of providing a polyester film that contains a recycled polyester resin and that has excellent surface smoothness and film handling properties. The present invention relates to a layered polyester film having a front surface layer and a rear surface layer, wherein: the content of recycled polyester resin with respect to the total mass of a resin component is not less than 90 mass%; the recycled polyester resin contains granules having a particle size of not more than 1000 μm in an amount of not less than 50/m2; the maximum peak height (SpA) of the surface of the front surface layer is not more than 90 nm; the arithmetic mean height (SaB) of the surface of the rear surface layer is 3-35 nm; and the maximum peak height (SpB) of the surface of the rear surface layer is 30-700 nm.

IPC Classes  ?

  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • C08J 5/18 - Manufacture of films or sheets
  • H01G 13/00 - Apparatus specially adapted for manufacturing capacitorsProcesses specially adapted for manufacturing capacitors not provided for in groups

39.

COMPOSITION FOR REDUCING ADVANCED GLYCATION END PRODUCTS

      
Application Number JP2025023012
Publication Number 2026/004954
Status In Force
Filing Date 2025-06-26
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Togawa Naoyuki
  • Yamada Ryouichi
  • Uchida Noriyoshi
  • Aoki Yoshinori
  • Suehiro Shohei
  • Nishihira Jun
  • Honma Naoyuki
  • Katsuyama Hiroyo
  • Haseda Akane

Abstract

The purpose of the present invention is to provide a novel probiotic that is not readily affected by stomach acids or bile acids and can reduce the amounts of multiple types of advanced glycation end products (AGEs) and/or dimethylarginine metabolites. Provided is a composition that includes Heyndrickxia bacteria and is to be used to reduce AGEs and/or dimethylarginine metabolites.

IPC Classes  ?

  • A23L 33/135 - Bacteria or derivatives thereof, e.g. probiotics
  • A23K 10/16 - Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions
  • A23L 2/52 - Adding ingredients

40.

SEPARATION MATERIAL, METHOD FOR MANUFACTURING SEPARATION MATERIAL, METHOD FOR SEPARATING TARGET MOLECULES, MIXTURE, AND COLUMN FOR CHROMATOGRAPHY

      
Application Number JP2025023045
Publication Number 2026/004963
Status In Force
Filing Date 2025-06-26
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Tsuchiya, Tomoaki
  • Tobishima, Ikumi

Abstract

The problem addressed by the present invention is to provide: a separation material that has improved separation and refinement capabilities even for large molecules such as nucleic acids; and uses for the separation material. [Solution] The present invention is a separation material, formed by an anion exchange group bonding with a carrier, wherein the anion exchange group includes a structural unit represented by formula (A1) (n1 is at least 1 and no more than 10, Ra0represents a hydrogen atom or an alkyl group with a carbon number of at least 1 and no more than 4, and the following may also be included as substituent groups: Ra1, representing O or NH; Ra2–Ra7, each of which independently represents a hydrogen atom or an alkyl group with a carbon number of at least 1 and no more than 4; and Ra2, representing a straight-chain or branched alkylene group with a carbon number of at least 1 and no more than 6.).

IPC Classes  ?

  • G01N 30/88 - Integrated analysis systems specially adapted therefor, not covered by a single one of groups
  • B01J 20/281 - Sorbents specially adapted for preparative, analytical or investigative chromatography
  • B01J 20/285 - Porous sorbents based on polymers
  • C12N 15/10 - Processes for the isolation, preparation or purification of DNA or RNA

41.

COMPOUND, POLYMERIZABLE COMPOSITION, HOLOGRAM RECORDING MEDIUM, POLYMER, OPTICAL MATERIAL, AND OPTICAL COMPONENT

      
Application Number JP2025023315
Publication Number 2026/005044
Status In Force
Filing Date 2025-06-27
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Nakura, Ryo
  • Yabe, Akiko
  • Yamashita, Shuji
  • Inoue, Kazuma
  • Yamada, Ryo
  • Enda, Jun

Abstract

Provided is a compound which is useful as an optical material or an optical component, exhibits a high refractive index and high transparency, is easily polymerizable, exhibits chemical stability and high solubility in a variety of solvents, and exhibits storage stability as a solution. The compound is represented by formula (1). In the formula, n denotes an integer between 1 and 3. L denotes an optionally branched linking group having a valency of (n+1). Y1and Y2each independently denote an aromatic group having a total of 7-20 carbon atoms, nitrogen atoms, oxygen atoms and sulfur atoms. Ar1and Ar2each independently denote an optionally substituted aromatic hydrocarbon group. A ring structure may not be formed by Ar1and T1nor by Ar2and Y2. p and q each independently denote an integer between 0 and 5. However, p and q may not both be 0. R1 denotes a hydrogen atom or a methyl group.

IPC Classes  ?

  • C08F 20/36 - Esters containing nitrogen containing oxygen in addition to the carboxy oxygen
  • C07C 271/16 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
  • C08F 20/30 - Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
  • G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
  • G02B 5/18 - Diffracting gratings
  • G02B 5/20 - Filters
  • G02B 5/32 - Holograms used as optical elements
  • H10K 59/10 - OLED displays
  • H10K 59/95 - Assemblies of multiple devices comprising at least one organic light-emitting element wherein all light-emitting elements are organic, e.g. assembled OLED displays

42.

COMPOUND OR CLUSTER COMPOUND, PRODUCTION METHOD FOR COMPOUND, PHOTOSENSITIVE COMPOSITION INCLUDING COMPOUND, PATTERN FORMATION METHOD USING COMPOSITION, SUBSTRATE, AND PRODUCTION METHOD FOR SUBSTRATE

      
Application Number JP2025023409
Publication Number 2026/005061
Status In Force
Filing Date 2025-06-30
Publication Date 2026-01-02
Owner
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
  • NATIONAL INSTITUTES FOR QUANTUM SCIENCE AND TECHNOLOGY (Japan)
Inventor
  • Hattori Shigeki
  • Nagayama Kazuhiro
  • Yamamoto Keishi
  • Kato Akane
  • Akita Takuya
  • Yamamoto Hiroki

Abstract

211 to which the carboxylate group is bonded has a substituent R1.

IPC Classes  ?

  • C07C 61/04 - Saturated compounds having a carboxyl group bound to a three- or four-membered ring
  • C07C 61/08 - Saturated compounds having a carboxyl group bound to a six-membered ring
  • C07C 62/24 - Saturated compounds containing keto groups the keto group being part of a ring
  • C07C 69/75 - Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring of acids with a six-membered ring
  • C07F 9/94 - Bismuth compounds
  • G03F 7/004 - Photosensitive materials
  • G03F 7/20 - ExposureApparatus therefor

43.

TRANSITION METAL CLUSTER COMPOUND, METHOD FOR PRODUCING SAID COMPOUND, PHOTOSENSITIVE COMPOSITION CONTAINING SAID COMPOUND, PATTERN FORMING METHOD USING SAID COMPOSITION, SUBSTRATE, AND METHOD FOR PRODUCING SUBSTRATE

      
Application Number JP2025023416
Publication Number 2026/005064
Status In Force
Filing Date 2025-06-30
Publication Date 2026-01-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hattori Shigeki
  • Nagayama Kazuhiro
  • Yamamoto Keishi
  • Kato Akane
  • Akita Takuya
  • Yamamoto Hiroki

Abstract

Provided are a transition metal cluster compound capable of achieving miniaturization of a circuit pattern, a photosensitive composition containing the same, and so forth. A transition metal cluster compound according to the present invention is characterized by containing transition metal atoms and carboxylate ligands A each having an alicyclic structure of saturated hydrocarbons. Preferably, the carboxylate ligand A contains an alicyclic structure of saturated hydrocarbons, which has at least one substituent R, the substituent R is an organic group or a halogen atom, and the alicyclic structure has 3-10 carbon atoms.

IPC Classes  ?

  • C07C 61/04 - Saturated compounds having a carboxyl group bound to a three- or four-membered ring
  • C07C 61/08 - Saturated compounds having a carboxyl group bound to a six-membered ring
  • C07F 7/00 - Compounds containing elements of Groups 4 or 14 of the Periodic Table
  • G03F 7/004 - Photosensitive materials
  • G03F 7/20 - ExposureApparatus therefor
  • G03F 7/32 - Liquid compositions therefor, e.g. developers

44.

COMPOUND, METHOD FOR PRODUCING SAID COMPOUND, PHOTOSENSITIVE COMPOSITION CONTAINING SAID COMPOUND, AND PATTERN FORMING METHOD, SUBSTRATE, AND METHOD FOR PRODUCING SUBSTRATE USING SAID COMPOSITION

      
Application Number JP2025023421
Publication Number 2026/005065
Status In Force
Filing Date 2025-06-30
Publication Date 2026-01-02
Owner
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
  • NATIONAL INSTITUTES FOR QUANTUM SCIENCE AND TECHNOLOGY (Japan)
Inventor
  • Yamamoto Keishi
  • Hattori Shigeki
  • Nagayama Kazuhiro
  • Akita Takuya
  • Kato Akane
  • Yamamoto Hiroki

Abstract

Provided are a transition metal cluster compound capable of enabling miniaturization of a circuit pattern, and a photosensitive composition containing the same. This transition metal cluster compound contains transition metal atoms and carboxylate ligands A, and is characterized in that: the carboxylate ligands A have an alicyclic structure to which carboxylate groups are bonded; in the alicyclic structure, carbons bonded to the carboxylate groups are quaternary carbon; and the transition metal cluster compound may contain oxygen and/or a hydroxyl group.

IPC Classes  ?

  • C07C 61/22 - Unsaturated compounds having a carboxyl group bound to a six-membered ring
  • C07F 7/00 - Compounds containing elements of Groups 4 or 14 of the Periodic Table
  • G03F 7/004 - Photosensitive materials
  • G03F 7/20 - ExposureApparatus therefor

45.

COMPOSITION, METHOD FOR PRODUCING COMPOSITION, NON-LINEAR OPTICAL FILM, METHOD FOR FORMING NON-LINEAR OPTICAL FILM, AND OPTICAL MODULATOR

      
Application Number JP2025021668
Publication Number 2025/263477
Status In Force
Filing Date 2025-06-16
Publication Date 2025-12-26
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Kojima Souya
  • Bando Yoshimasa
  • Asato Ryosuke
  • Matsumoto Kouki
  • Gorohmaru Hideki

Abstract

The purpose of the present invention is to provide: a composition which can improve the heat resistance and dissolution resistance of a formed film without altering electrooptical characteristics; a method for producing said composition; and a non-linear optical film. The present invention relates to a composition containing a non-linear optically active polymer compound, a metal element-containing compound and a solvent. The metal element is at least one element selected from the group consisting of tin, titanium, bismuth, zinc, zirconium, iron, manganese, copper, lead, nickel, cobalt, antimony, hafnium and aluminum. The total content of metal elements selected from among said group is 10-200 ppm by mass relative to the total amount of solid content in the composition. The non-linear optically active polymer compound has a side chain. The side chain includes a urethane bond or urea bond.

IPC Classes  ?

  • C08L 101/06 - Compositions of unspecified macromolecular compounds characterised by the presence of specified groups containing oxygen atoms
  • C08K 3/10 - Metal compounds
  • G02F 1/355 - Non-linear optics characterised by the materials used

46.

RESIN COMPOSITION, MOLDED BODY, SHEET, FILM, REGRIND LAYER, MULTILAYER STRUCTURE, AND METHOD FOR PRODUCING MULTILAYER STRUCTURE AND MOLDED BODY

      
Application Number JP2025021696
Publication Number 2025/263490
Status In Force
Filing Date 2025-06-16
Publication Date 2025-12-26
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Teraoka Kota

Abstract

Provided is a resin composition excellent in thermal stability. Specifically, a resin composition comprising a carbon 14-containing polypropylene resin (A), an ethylene-vinyl alcohol copolymer (B), and an acid-modified polyolefin resin (C) is provided.

IPC Classes  ?

  • C08L 23/10 - Homopolymers or copolymers of propene
  • B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B65D 65/00 - Wrappers or flexible coversPackaging materials of special type or form
  • C08L 23/08 - Copolymers of ethene
  • C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

47.

OIL-AND-FAT COMPOSITION FOR NON-ANIMAL PROTEIN FOOD

      
Application Number JP2025020913
Publication Number 2025/258582
Status In Force
Filing Date 2025-06-10
Publication Date 2025-12-18
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Arima Satoshi
  • Sakai Masahiro

Abstract

The purpose of the present invention is to provide a new means for reducing separation of contained oil and fat over the course of time in a meat fat tissue-like substitute using a gel of an alkali-gelatinizable polysaccharide. Provided is an oil-and-fat composition for food, the composition containing water, an emulsifier, edible oil and fat, an alkali-gelatinizable polysaccharide, and calcium ions. The content of the calcium ions is 2.0 mass% or less with respect to the content of the alkali-gelatinizable polysaccharide.

IPC Classes  ?

  • A23D 7/005 - Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by ingredients other than fatty acid triglycerides
  • A23J 3/00 - Working-up of proteins for foodstuffs
  • A23L 29/244 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing gelling or thickening agents of vegetable origin from corms, tubers or roots, e.g. glucomannan

48.

ETHYLENE-VINYL ALCOHOL COPOLYMER, USE THEREOF FOR IMPROVING HEAT STABILITY, USE THEREOF FOR ENHANCING RESISTANCE TO PYROLYSIS, RESIN COMPOSITION, MOLDING MATERIAL, MULTILAYER STRUCTURE, MOLDED BODY, FILM, FOOD PACKAGE, METHOD FOR PRODUCING MULTILAYER STRUCTURE, AND METHOD FOR PRODUCING MOLDED BODY

      
Application Number JP2025019515
Publication Number 2025/254020
Status In Force
Filing Date 2025-05-29
Publication Date 2025-12-11
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yamamoto Nobuyuki
  • Tomita Yuuko

Abstract

Provided is an ethylene-vinyl alcohol copolymer excellent in thermal stability. This ethylene-vinyl alcohol copolymer has a bio-based degree of 0.0001% or more and less than 3%.

IPC Classes  ?

  • C08F 216/06 - Polyvinyl alcohol
  • B65D 65/40 - Applications of laminates for particular packaging purposes
  • C08F 8/12 - Hydrolysis
  • C08F 210/02 - Ethene
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

49.

PLATINUM GROUP ELEMENT-SUPPORTING SILICA

      
Application Number JP2025019452
Publication Number 2025/249509
Status In Force
Filing Date 2025-05-29
Publication Date 2025-12-04
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Terashima Ayako

Abstract

The purpose of the present invention is to provide an ethylene degrading agent that is not easily charged, has good handleability, and has excellent ethylene degrading ability. The present invention provides a platinum group element-supporting silica in which the number of surface silanol groups per unit surface area is more than 1.3 groups/nm2.

IPC Classes  ?

  • C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof
  • A01N 25/08 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of applicationSubstances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
  • A01N 59/16 - Heavy metalsCompounds thereof
  • A01P 3/00 - Fungicides
  • A23B 7/157 - Inorganic compounds
  • B01J 23/42 - Platinum
  • B01J 35/61 - Surface area
  • B01J 35/63 - Pore volume
  • B01J 35/64 - Pore diameter

50.

PREPREG AND FIBER-REINFORCED COMPOSITE MATERIAL

      
Application Number JP2024019016
Publication Number 2025/243461
Status In Force
Filing Date 2024-05-23
Publication Date 2025-11-27
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Misumi Yuji

Abstract

Provided is a prepreg having an improved water absorption rate (low water absorbability). Provided is a fiber-reinforced composite material having an improved water absorption rate, while maintaining heat resistance. This prepreg is obtained by impregnating, with a matrix resin composition, a reinforcing fiber base material containing carbon fibers. The reinforcing fiber base material contains carbon fibers. The matrix resin composition contains component (A): a cyanate ester resin, component (B): an imidazole compound, and component (C): rubber particles. The content of component (A) is more than 50% by mass and the content of component (C) is 0.1%-30% by mass with respect to the total mass of the matrix resin composition.

IPC Classes  ?

  • C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs

51.

WATER-SOLUBLE FILM, PRODUCTION METHOD THEREFOR, PACKAGE, DRUG PACKAGE, AND PRODUCTION METHOD THEREFOR

      
Application Number JP2025018390
Publication Number 2025/244060
Status In Force
Filing Date 2025-05-21
Publication Date 2025-11-27
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Terazawa Madoka
  • Tanigawa Takuma
  • Yoshimura Nobuyoshi
  • Muramatsu Yusuke

Abstract

Provided are: a water-soluble film which, when a polyvinyl alcohol-based resin and pullulan are used in combination, has excellent mechanical properties such as strength and stretchability and has excellent moldability and compressive strength that are useful for packaging applications; a production method therefor; a drug package; and a production method therefor. This water-soluble film comprises a polyvinyl alcohol-based resin (A), pullulan (B), and a compound (C) having at least two carboxy groups per molecule, wherein the content of the compound (C) is at most 20 parts by mass with respect to 100 parts by mass of the total content of the polyvinyl alcohol-based resin (A) and the pullulan (B).

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • C08L 5/00 - Compositions of polysaccharides or of their derivatives not provided for in group or
  • C08L 5/06 - PectinDerivatives thereof
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

52.

PREPREG AND FIBER-REINFORCED COMPOSITE MATERIAL

      
Application Number JP2025018579
Publication Number 2025/244099
Status In Force
Filing Date 2025-05-22
Publication Date 2025-11-27
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Misumi Yuji

Abstract

Provided is a prepreg having an improved water absorption rate (low water absorption). Also provided is a fiber-reinforced composite material having an improved water absorption rate while maintaining heat resistance. This prepreg has a reinforcing fiber base material, which contains carbon fibers, impregnated with a matrix resin composition. The reinforcing fiber base material contains carbon fibers. The matrix resin composition contains component (A): a cyanate ester resin, component (B): a curing agent, and component (C): rubber particles. The content of component (A) is more than 50 mass% and the content of component (C) is 0.1-30 mass% with respect to the total mass of the matrix resin composition.

IPC Classes  ?

  • C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs

53.

CELL CULTURE SUBSTRATE, CELL CULTURE VESSEL, CELL CULTURE MEMBER, METHOD FOR MANUFACTURING CELL CULTURE SUBSTRATE, AND METHOD FOR CULTURING CELLS

      
Application Number JP2025018632
Publication Number 2025/244110
Status In Force
Filing Date 2025-05-22
Publication Date 2025-11-27
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yanagihara, Hideto
  • Okahara, Kenji
  • Miyauchi, Yoshiteru
  • Ooki, Kenji
  • Dekishima, Yasumasa

Abstract

A cell culture substrate according to the present invention is provided with a diamond-like carbon film on the surface of the substrate. The ratio of oxygen atoms to carbon atoms (O/C) on the surface of the diamond-like carbon film is 0.1 or more, and the contact angle of the diamond-like carbon film and water is 58° or less. It is possible to provide a cell culture substrate that allows cells to adhere well and has high cell proliferation, regardless of the presence or absence of serum.

IPC Classes  ?

  • C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus
  • C12M 1/00 - Apparatus for enzymology or microbiology
  • C12N 5/00 - Undifferentiated human, animal or plant cells, e.g. cell linesTissuesCultivation or maintenance thereofCulture media therefor
  • C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells
  • C12N 5/0775 - Mesenchymal stem cellsAdipose-tissue derived stem cells

54.

TRANSPARENT MOLDED BODY, OPTICAL MEMBER, AND NEAR-INFRARED SENSOR COVER

      
Application Number JP2025017945
Publication Number 2025/243962
Status In Force
Filing Date 2025-05-19
Publication Date 2025-11-27
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Kawahara Tomoyasu
  • Nakai Yusuke

Abstract

The purpose of the present invention is to provide a transparent molded body excellent in low reflectivity of light in a near-infrared region and low in angle dependence of reflectance of light in a near-infrared region, an optical member including the transparent molded body, and a near-infrared sensor cover. This transparent molded body (1) is provided with a transparent base material (10), and an uneven layer (12) formed on at least one surface of the transparent base material (10) and comprising a cured product of a curable composition, the uneven layer (12) having, on the surface thereof, a fine uneven structure in which the interval P between adjacent protrusions (14) is 80-400 nm, the height H of the protrusions (14) of the fine uneven structure is 320 nm or more, and the ratio (height H/interval P) of the height H of the protrusions (14) and the interval P between the adjacent protrusions (14) is 2.0-3.9.

IPC Classes  ?

  • G02B 1/118 - Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
  • B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements

55.

LAYERED POLYESTER FILM AND USE THEREOF

      
Application Number JP2025018603
Publication Number 2025/244105
Status In Force
Filing Date 2025-05-22
Publication Date 2025-11-27
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Hara Tomoaki

Abstract

The present invention addresses the problem of providing a layered polyester film which contains a recycled polyester resin and exhibits excellent film surface smoothness and handling properties. The present invention relates to a layered polyester film having a front surface layer, an intermediate layer and a back surface layer. The front surface layer and/or the intermediate layer contain(s) a recycled polyester resin. The front surface layer has protrusions that are detected when analysis is performed under prescribed conditions, and the number of protrusions is 70 protrusions/mm2or more. The present invention also relates to a layered polyester film having a front surface layer, an intermediate layer and a back surface layer. The front surface layer and/or the intermediate layer contain a recycled polyester resin. The front surface layer has protrusions that are detected when analysis is performed under prescribed conditions, and the total area of protrusions is 60 μm2/mm2 or more.

IPC Classes  ?

  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

56.

METHOD FOR STORING ORGANOTIN COMPOUNDS AND ARTICLE

      
Application Number US2025026609
Publication Number 2025/240105
Status In Force
Filing Date 2025-04-28
Publication Date 2025-11-20
Owner
  • GELEST, INC. (USA)
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hioki, Yuta
  • Fukui, Hiroshi
  • Yang, Li

Abstract

A method for storing organotin compounds and an article that is particularly useful for maintaining the high purity of organotin compounds for semiconductor applications is described. The method for storing an organotin compound involves storing the organotin compound in a container and filling the headspace of the container with an inert gas, in which the container is a multilayer resin container containing, at least a light-shielding layer, a gas barrier layer, and an innermost layer, and the material constituting the innermost layer in contact with the organotin compound includes perfluoroalkoxyalkane, polytetrafluoroethylene, phenol resin, and/or ultra-high molecular weight polyethylene.

IPC Classes  ?

  • C23C 16/455 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into the reaction chamber or for modifying gas flows in the reaction chamber
  • C23C 16/448 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
  • C23C 16/30 - Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B65D 1/02 - Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
  • B65D 25/14 - Linings or internal coatings
  • B65D 81/30 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants by excluding light or other outside radiation
  • B65D 85/00 - Containers, packaging elements or packages, specially adapted for particular articles or materials
  • C07F 7/22 - Tin compounds
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor

57.

INSULATING FILM FOR MOTOR AND MOTOR

      
Application Number JP2025017004
Publication Number 2025/234479
Status In Force
Filing Date 2025-05-09
Publication Date 2025-11-13
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Osaki Keishi
  • Suzuki Seigo

Abstract

The present invention addresses the problem of providing an insulating film for a motor having high thermal conductivity (heat flow-through property) in addition to excellent assemblability and insulation property. The present invention relates to an insulating film for a motor, comprising a resin layer and aramid paper laminated on both surfaces of the resin layer with an adhesive layer interposed therebetween, wherein the insulating film for a motor has a thickness of 200 μm or less and a density of 1.0 g/cm3or more, the aramid paper has a thickness of 49 μm or less and a density of 0.65 g/cm3or more and 1.50 g/cm3 or less, and a value obtained by dividing the thickness of the resin layer by the total thickness of the aramid paper is 0.4-5.

IPC Classes  ?

  • H02K 3/30 - Windings characterised by the insulating material
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • H01B 17/56 - Insulating bodies
  • H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

58.

HEAT TRANSFER FLUID, METHOD FOR EXCHANGING HEAT BETWEEN OBJECT AND HEAT TRANSFER FLUID, USE OF COMPOSITION, AND COMPOSITION

      
Application Number JP2025016467
Publication Number 2025/230001
Status In Force
Filing Date 2025-05-01
Publication Date 2025-11-06
Owner
  • GELEST, INC. (USA)
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Liu, Kwei-Yu
  • Pushkarev, Vladimir
  • Ohmura, Naoya

Abstract

Provided is a heat transfer fluid which exhibits thermal stability in a wide temperature range, is suitable for use, and has a short atmospheric life at a level that lowers the global warming potential. A heat transfer fluid according to the present disclosure contains a compound which is represented by formula (A), and in which the number of Si atoms in formula (A) is one, and the total mass of the compound represented by formula (A) in the heat transfer fluid is 5 mass% or more. (In formula (A), Y5, Y6, Y7, and Y8 each independently represent a substituent group having 1-20 carbon atoms.)

IPC Classes  ?

59.

CHARGE TRANSPORT POLYMER-CONTAINING COMPOSITION, AND PHOTOELECTRIC CONVERSION ELEMENT

      
Application Number JP2025016232
Publication Number 2025/229954
Status In Force
Filing Date 2025-04-28
Publication Date 2025-11-06
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Iida, Koichiro
  • Harada, Chihiro
  • Li, Yanjun
  • Ishibashi, Koichi

Abstract

Provided is a composition that can be suitably used for the formation of a hole transport layer even when a photoelectric conversion element having an active layer containing a perovskite semiconductor compound has an inverted structure. This composition is used for forming a hole transport layer of a photoelectric conversion element and contains a charge transport polymer (α) and a tetraarylborate ion, wherein the charge transport polymer (α) has a crosslinkable group and further has a chemical structure of formula (5) in its main chain, and the tetraarylborate ion is represented by formula (4). Note that R1denotes an alkyl group having 1 to 4 carbon atoms, R2to R5each independently denote a hydrogen atom or the like, Ar31, Ar32, Ar33, and Ar34each independently denote an optionally substituted aromatic hydrocarbon group or the like, and at least one of Ar31, Ar32, Ar33, and Ar34 has a fluorine atom or a fluorine-substituted alkyl group as a substituent.

IPC Classes  ?

  • H10K 30/50 - Photovoltaic [PV] devices
  • C08G 73/02 - Polyamines
  • H10K 30/86 - Layers having high hole mobility, e.g. hole-transporting layers or electron-blocking layers
  • H10K 85/10 - Organic polymers or oligomers
  • H10K 85/50 - Organic perovskitesHybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3

60.

FILM FOR METAL LAMINATION, FILM FOIL, FILM FOIL FOR BATTERY CURRENT COLLECTOR, AND BATTERY CURRENT COLLECTOR

      
Application Number JP2025015457
Publication Number 2025/225577
Status In Force
Filing Date 2025-04-21
Publication Date 2025-10-30
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Sugai Yota

Abstract

The present invention contributes to improvement of the electrochemical stability of a film for metal lamination. Disclosed is a film for metal lamination, which has a resin layer on at least one surface of a polyester film, wherein the ratio (β/α) of the peak intensity (β) after a test to the peak intensity (α) before the test satisfies formula (1). Formula (1): (peak intensity (β) after test)/(peak intensity (α) before test) > 0.46

IPC Classes  ?

  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
  • C08J 7/043 - Improving the adhesiveness of the coatings per se, e.g. forming primers
  • H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
  • H01M 4/64 - Carriers or collectors
  • H01M 4/66 - Selection of materials

61.

SHEET AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2025013326
Publication Number 2025/211353
Status In Force
Filing Date 2025-04-01
Publication Date 2025-10-09
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hara Koji
  • Ito Takaaki

Abstract

Provided is a sheet exhibiting high drug delivery efficiency to the posterior part of the eye and excellent retentivity, which could not be achieved with a conventional method. The present invention provides a sheet containing nanofibers including a water-soluble polymer (A), wherein the water-soluble polymer (A) contains at least one selected from the group consisting of a polyvinyl alcohol-based resin, a hydroxyalkyl cellulose, and a polyethylene oxide; and the sheet comes into contact with at least one selected from the group consisting of the cornea, conjunctiva, and sclera, and maintains 50% or more of the mass after being immersed in phosphate-buffered saline at 37°C for 1 minute.

IPC Classes  ?

  • A61K 9/70 - Web, sheet or filament bases
  • A61K 9/51 - Nanocapsules
  • A61K 45/00 - Medicinal preparations containing active ingredients not provided for in groups
  • A61K 47/32 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers

62.

NOVEL SUCROSE FATTY ACID ESTER

      
Application Number JP2025013712
Publication Number 2025/211438
Status In Force
Filing Date 2025-04-04
Publication Date 2025-10-09
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hara Hideyuki
  • Koike Sanae

Abstract

The present invention provides a sucrose fatty acid ester which has reduced bitterness and which facilitates perception of umami taste, a food in which the sucrose fatty acid ester is used, etc. Provided is a sucrose fatty acid ester characterized in that a palmitic acid stearic acid ester in a diester contained in the sucrose fatty acid ester is relatively low. Specifically, provided is a sucrose fatty acid ester in which a part of a hydroxyl group of sucrose is substituted with an aliphatic hydrocarbon group, said sucrose fatty acid ester satisfying all of the following (1) to (3). (1) Said sucrose fatty acid ester contains a palmitic acid palmitic acid ester and a stearic acid stearic acid ester. (2) The content of a palmitic acid stearic acid ester is equal to or lower than the content of the palmitic acid palmitic acid ester. (3) The content of the palmitic acid stearic acid ester is equal to or lower than the content of the stearic acid stearic acid ester.

IPC Classes  ?

  • A23L 29/10 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing emulsifiers
  • A23F 5/24 - Extraction of coffeeCoffee extractsMaking instant coffee

63.

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE FORMING APPARATUS

      
Application Number JP2025008704
Publication Number 2025/204789
Status In Force
Filing Date 2025-03-10
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hasegawa Tsukasa
  • Otero Ramirez Manuel Emilio
  • Miyashita Wataru
  • Goroumaru Hideki

Abstract

The present invention relates to an electrophotographic photoreceptor which has at least a photosensitive layer and a protective layer on a conductive support. As a novel electrophotographic photoreceptor with which it is possible to improve the electrical characteristics, especially residual potential and potential retention rate of the photoreceptor, the present invention proposes an electrophotographic photoreceptor which has at least a photosensitive layer and a protective layer on a conductive support, wherein: the protective layer contains a hole transporting compound and an electron accepting compound; and the electron accepting compound is a compound that contains a boron atom.

IPC Classes  ?

  • G03G 5/147 - Cover layers
  • G03G 5/05 - Organic bonding materialsMethods for coating a substrate with a photoconductive layerInert supplements for use in photoconductive layers
  • G03G 5/07 - Polymeric photoconductive materials
  • G03G 5/047 - Photoconductive layers characterised by having two or more layers or characterised by their composite structure characterised by the charge-generation layers or charge-transporting layers

64.

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE FORMING APPARATUS

      
Application Number JP2025008732
Publication Number 2025/204797
Status In Force
Filing Date 2025-03-10
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Miyashita, Wataru
  • Ichii, Naoki

Abstract

14144 independently represents a hydrogen atom or a bond group that is bonded with another constituent unit. Each of n1and n2is an integer of 1 or more. When n21212122 is a bond group that is bonded with another constituent unit. The chain of the structure to which n1and n2 are attached may be a random chain or a block chain.)

IPC Classes  ?

  • G03G 5/147 - Cover layers
  • G03G 5/06 - Photoconductive layersCharge-generation layers or charge-transporting layersAdditives thereforBinders therefor characterised by the photoconductive material being organic
  • G03G 5/07 - Polymeric photoconductive materials

65.

MODIFIED NICOTINAMIDE PHOSPHORIBOSYLTRANSFERASE AND METHOD FOR PRODUCING NICOTINAMIDE MONONUCLEOTIDE USING SAME

      
Application Number JP2025009565
Publication Number 2025/204968
Status In Force
Filing Date 2025-03-13
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Akiyama Takanori
  • Sakamoto Takeshi
  • Igarashi Hiroyuki
  • Miyaike Mitsuko
  • Suzuki Kumpei

Abstract

133 each represent an arbitrarily defined amino acid, and [ ] represents any one of the amino acids indicated in [ ]).

IPC Classes  ?

  • C12N 9/10 - Transferases (2.)
  • C12N 1/21 - BacteriaCulture media therefor modified by introduction of foreign genetic material
  • C12N 15/54 - Transferases (2)
  • C12P 19/32 - Nucleotides having a condensed ring system containing a six-membered ring having two nitrogen atoms in the same-ring, e.g. purine nucleotides, nicotineamide-adenine dinucleotide

66.

TONER, TONER CARTRIDGE, IMAGE-FORMING DEVICE, AND METHOD FOR PRODUCING TONER

      
Application Number JP2025010144
Publication Number 2025/205153
Status In Force
Filing Date 2025-03-17
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Tatsumi, Daichi
  • Sano, Shiho
  • Yamamoto, Kenta
  • Matsuura, Haruhiko
  • Minetaki, Kousuke

Abstract

Provided is a toner containing at least: mother particles and an external additive. The mother particles contain an amorphous polyester resin and a crystalline polyester resin. When the toner is analyzed at an analysis frequency of 6.28 rad/second and a temperature increase rate of 4°C/minute, the complex viscosity at 80°C is no greater than100000 Pa•s and the complex viscosity at 110°C is no greater than 2000 Pa•s. When 20 g of the toner is disposed inside a thermostatic chamber at a temperature of 50°C and relative humidity of 40%, left to stand for 20 hours, and then sifted through a 60 mesh sieve, the percentage remaining on the sieve is less than 5%.

IPC Classes  ?

67.

PRETREATMENT AGENT FOR INKJET TEXTILE PRINTING, INK SET FOR INKJET TEXTILE PRINTING, AND INKJET TEXTILE PRINTING METHOD

      
Application Number JP2025010709
Publication Number 2025/205327
Status In Force
Filing Date 2025-03-19
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Onishi, Hideaki

Abstract

This pretreatment agent for inkjet textile printing contains an N-vinylformamide-based cationic polymer having, as a constituent unit, at least one selected from the group consisting of a constituent unit represented by formula (1), a constituent unit that is a salt thereof, and a constituent unit represented by formula (2). The weight average molecular weight of the N-vinylformamide-based cationic polymer is 100,000 or less.

IPC Classes  ?

  • D06P 5/00 - Other features in dyeing or printing textiles or dyeing leather, furs or solid macromolecular substances in any form
  • B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
  • D06P 5/30 - Ink jet printing

68.

POLYMER, RESIN ADDITIVE, RESIN COMPOSITION, MOLDED BODY, AND METHOD FOR PRODUCING POLYMER

      
Application Number JP2025010839
Publication Number 2025/205377
Status In Force
Filing Date 2025-03-19
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Ogasawara Eriko
  • Aoki Yutaka

Abstract

Provided are: a molded body in which decrease in fluidity during processing is suppressed and impact resistance is excellent; a polymer for producing the molded body; a method for producing same; and a resin composition. The polymer according to the present invention has a first polymer part and a second polymer part. The first polymer part is a polyamide polymer. The second polymer part has a constituent unit derived from a (meth)acrylate monomer. The ratio of the second polymer part is 45% by mass or more when the total of the first polymer part and the second polymer part is taken as 100% by mass.

IPC Classes  ?

  • C08F 283/04 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polycarbonamides, polyesteramides or polyimides
  • C08L 51/08 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
  • C08L 101/00 - Compositions of unspecified macromolecular compounds

69.

RESIN COMPOSITION, RESIN SHEET, LAYERED PRODUCT, CURED PRODUCT AND CIRCUIT BOARD MATERIAL

      
Application Number JP2025011047
Publication Number 2025/205437
Status In Force
Filing Date 2025-03-21
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Ushijima Mayuka
  • Hayakawa Yuuko
  • Satake Kenichi
  • Furuya Koharu

Abstract

The present invention provides: a cured sheet product and a circuit board material which exhibit low dielectric properties and excellent adhesion to conductors, and which exhibit heat resistance; and a resin composition, a resin sheet, and a layered product which exhibit low dielectric properties, exhibit heat resistance, and can produce the cured sheet product and the circuit board material. A resin composition according to the present invention contains: at least one type of thermoplastic resin (A) selected from the group consisting of a styrene-based thermoplastic elastomer, an olefin-based thermoplastic elastomer and an ethylene-based polymer; and an aromatic heterocyclic compound (B) having two or more ethylenically unsaturated bonds in the molecule. The content of the thermoplastic resin(s) (A) is more than 50 mass% and less than 99 mass% based on the total mass of solids in the resin composition.

IPC Classes  ?

  • C08L 25/10 - Copolymers of styrene with conjugated dienes
  • B32B 25/00 - Layered products essentially comprising natural or synthetic rubber
  • C08F 299/02 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
  • C08G 65/48 - Polymers modified by chemical after-treatment
  • C08L 9/06 - Copolymers with styrene
  • C08L 23/08 - Copolymers of ethene
  • C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
  • C08L 25/18 - Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • C08L 71/10 - Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
  • C08L 81/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon onlyCompositions of polysulfonesCompositions of derivatives of such polymers
  • H05K 1/03 - Use of materials for the substrate

70.

POLYCARBONATE DIOL, METHOD FOR PRODUCING POLYCARBONATE DIOL, POLYURETHANE, AND DIHYDROXY COMPOUND-CONTAINING COMPOSITION

      
Application Number JP2025011130
Publication Number 2025/205463
Status In Force
Filing Date 2025-03-21
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Wakabayashi, Kazuki
  • Ayuta, Mitsuhiro
  • Kozuma, Daisuke
  • Shirai, Kazuaki
  • Yamanaka, Takayuki

Abstract

This polycarbonate diol contains a structural unit (1) represented by general formula (I) and a structural unit (2) represented by general formula (II). The percentage content of the structural unit (2) in the polycarbonate diol is 4.3 mol% or less relative to the total structural units of the polycarbonate diol which is 100 mol%. The present invention can provide: a method for producing a polycarbonate diol, in which a diol such as 1,4-butanediol is used as a raw material and a polycarbonate diol with a molecular weight close to the theoretical molecular weight in high yield can be obtained; and a polycarbonate diol that makes it possible to obtain a polyurethane having excellent mechanical properties and chemical resistance and configured to suppress variation in the mechanical properties. In general formula (I), n is an integer of 4-6. Also, in general formula (II), m is an integer of 2-4.

IPC Classes  ?

  • C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups
  • C08G 18/44 - Polycarbonates
  • C08G 18/72 - Polyisocyanates or polyisothiocyanates
  • C08G 63/78 - Preparation processes
  • C08G 63/85 - Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof

71.

DOUBLE-SIDED ADHESIVE SHEET, DOUBLE-SIDED ADHESIVE SHEET WITH RELEASE FILM, LAMINATE FOR IMAGE DISPLAY DEVICE USING THE SAME, AND IMAGE DISPLAY DEVICE

      
Application Number JP2025011368
Publication Number 2025/205558
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Fukasawa Hitomi
  • Fukuda Shinya

Abstract

The present invention provides the following as a double-sided adhesive sheet that has excellent impact resistance and tends not to leave any marks during bonding. A double-sided adhesive sheet having an adhesive layer obtained by curing an adhesive composition containing a (meth)acrylic copolymer (A), wherein: a stress-strain curve obtained for a test piece of 20 mm × 70 mm of the adhesive sheet when a tensile test is performed at a tension rate of 300 mm/min and a chuck distance of 20 mm indicates that the tensile elastic modulus (E') at 25°C, which is calculated as the slope of the strain section from 10% to 200%, is 1.0-20 MPa; and the elastic modulus ratio (E'/G') of the tensile elastic modulus (E') at 25°C to the shear storage elastic modulus (G') at 25°C obtained by dynamic viscoelasticity measurement in the shear mode at a frequency of 1 Hz is 15-100.

IPC Classes  ?

  • C09J 7/38 - Pressure-sensitive adhesives [PSA]
  • C09J 11/06 - Non-macromolecular additives organic
  • C09J 133/04 - Homopolymers or copolymers of esters
  • G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

72.

GAN SUBSTRATE, METHOD FOR PRODUCING GAN CRYSTAL, AND METHOD FOR PRODUCING GAN SUBSTRATE

      
Application Number JP2025011471
Publication Number 2025/205614
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Enatsu Yuuki
  • Ishinabe Takayuki

Abstract

Disclosed is a method for producing a GaN substrate, the method including: growing a GaN crystal by an ammonothermal method through a mask opening of a first pattern mask on a first base substrate that has the first pattern mask disposed on the nitrogen polar surface thereof so as to obtain a multilayer structure in which the GaN crystal is superposed on the nitrogen polar surface of the first base substrate through the first pattern mask; using the GaN crystal separated from the multilayer structure as a second base substrate and disposing a second pattern mask on the nitrogen polar surface so that at least a part of a region grown above the mask opening of the first pattern mask on the nitrogen polar surface is covered with the mask part of the second pattern mask; and growing a GaN crystal by an ammonothermal method through a mask opening of the second pattern mask. Also disclosed is a GaN substrate which is obtained by the above-described production method. This GaN substrate achieves improvement in the yield or reduction in crystal defects over a wide range when used as a c-plane GaN substrate during the production of a device.

IPC Classes  ?

  • C30B 29/38 - Nitrides
  • C30B 7/10 - Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions by application of pressure, e.g. hydrothermal processes

73.

ION CONDUCTOR, SOLID ELECTROLYTE, ELECTRODE, POWER STORAGE DEVICE, AND SECONDARY BATTERY

      
Application Number JP2025012024
Publication Number 2025/205938
Status In Force
Filing Date 2025-03-26
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Takahashi Tomofumi
  • Sugisawa Hiroki
  • Hamamura Tomofumi
  • Satake Kenichi
  • Aikyo Hiroyuki
  • Nakatsuka Emi
  • Kato Masahiko
  • Fukii Kaoru

Abstract

Provided is a novel ion conductor containing an ionic soft crystal. An ion conductor according to one embodiment of the present invention contains an ionic soft crystal and a zwitterionic compound. An ion conductor according to another embodiment of the present invention contains an ionic soft crystal and a metal salt.

IPC Classes  ?

  • H01B 1/06 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances
  • C07C 311/04 - Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the sulfonamide groups bound to hydrogen atoms or to acyclic carbon atoms to acyclic carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
  • C07F 5/02 - Boron compounds
  • H01G 11/56 - Solid electrolytes, e.g. gelsAdditives therein
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 10/052 - Li-accumulators
  • H01M 10/0562 - Solid materials
  • H01M 10/0568 - Liquid materials characterised by the solutes

74.

POLYVINYL ALCOHOL-BASED FILM, POLARIZING FILM, AND POLARIZING PLATE

      
Application Number JP2025012047
Publication Number 2025/205953
Status In Force
Filing Date 2025-03-26
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Tsugawa Hiroki
  • Matsunaga Kohei
  • Nakatani Keigo

Abstract

The present invention provides a polyvinyl alcohol-based film which has few defects as a master film for a polarizing film, and with which it is possible to produce a polarizing film with high productivity. This polyvinyl alcohol-based film contains a polyvinyl alcohol-based resin (A), a nitrogen-containing nonionic surfactant (B), and a higher fatty acid salt (C1) or a higher fatty acid analogue (C) (a higher fatty acid salt (C1) and/or a higher fatty acid (C2)), wherein the mass content ratio (((C1) or (C))/(B)) of the higher fatty acid salt (C1) or the higher fatty acid analogue (C) to the nitrogen-containing nonionic surfactant (B) in the film is 0.3 or less.

IPC Classes  ?

  • G02B 5/30 - Polarising elements
  • C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
  • C08K 5/16 - Nitrogen-containing compounds
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

75.

BIODEGRADABLE LAMINATE, METHOD FOR PRODUCING SAME, AND PACKAGING MATERIAL

      
Application Number JP2025012354
Publication Number 2025/206118
Status In Force
Filing Date 2025-03-27
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Inagaki, Mai
  • Kosaka, Naoyuki
  • Yasui, Koji

Abstract

This biodegradable laminate has a first layer, a second layer that is an adhesive layer, and a third layer that contains a polyvinyl alcohol-based resin in this order. The first layer contains an aliphatic polyester resin (a). The aliphatic polyester resin (a) has, as main constituent units, a first repeating constituent unit that is derived from an aliphatic diol and a second repeating constituent unit that is derived from an aliphatic dicarboxylic acid. The second repeating constituent unit contains at least a repeating constituent unit that is derived from succinic acid and a repeating constituent unit that is derived from an aliphatic dicarboxylic acid having 9 to 36 carbon atoms.

IPC Classes  ?

  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B65D 65/40 - Applications of laminates for particular packaging purposes
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids
  • C08G 63/12 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable

76.

POLYCARBONATE DIOL COMPOSITION AND POLYURETHANE

      
Application Number JP2025012409
Publication Number 2025/206153
Status In Force
Filing Date 2025-03-27
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Wakabayashi, Kazuki
  • Ayuta, Mitsuhiro
  • Kozuma, Daisuke
  • Shirai, Kazuaki
  • Yamanaka, Takayuki

Abstract

Disclosed is a polycarbonate diol composition which contains a polycarbonate diol that comprises a structural unit (1) represented by general formula (I), and a nitrogen-containing compound, wherein the content of the nitrogen-containing compound is 5,000 mass ppm or less in terms of nitrogen atoms. Even in cases where a polycarbonate diol composition is obtained using a diol that includes 1,4-butanediol as a starting material, the formation of tetrahydrofuran during heating is suppressed. By using this polycarbonate diol composition, it is possible to obtain a polyurethane that has excellent transparency and excellent mechanical characteristics such as strength at break, elongation at break, and elastic modulus.

IPC Classes  ?

  • C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
  • C08G 18/44 - Polycarbonates
  • C08K 5/16 - Nitrogen-containing compounds

77.

POLYESTER FILM FOR SEMICONDUCTOR MANUFACTURING PROCESS

      
Application Number JP2025012719
Publication Number 2025/206291
Status In Force
Filing Date 2025-03-28
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hayakawa, Arisa
  • Suzuki, Tomohiro
  • Tanaka Ito, Rina

Abstract

This polyester film for a semiconductor manufacturing process comprises a thermoplastic polyester layer containing a thermoplastic polyester. The thermoplastic polyester layer is a surface layer (A) of the polyester film. The hardness of the surface layer (A) measured by a nanoindenter at 23±5°C is 450 MPa or less. The Young's modulus of the polyester film is 2 GPa or more.

IPC Classes  ?

  • H01L 21/301 - Treatment of semiconductor bodies using processes or apparatus not provided for in groups to subdivide a semiconductor body into separate parts, e.g. making partitions
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C09J 7/22 - PlasticsMetallised plastics
  • C09J 7/38 - Pressure-sensitive adhesives [PSA]
  • H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping

78.

CARBON MATERIAL COMPOSITION, NEGATIVE ELECTRODE, AND SECONDARY BATTERY

      
Application Number JP2025012954
Publication Number 2025/206368
Status In Force
Filing Date 2025-03-28
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yuasa Ryuto
  • Ishiwatari Nobuyuki
  • Yokomizo Masakazu

Abstract

The present invention relates to a carbon material composition in which the proportion of particles having a volume-based particle size distribution of 3 μm or less is 16.0-40.0%, and the maximum torque in measurement of the oil absorption amount for linseed oil is 13.0 N⋅m or less. The present invention also relates to a carbon material composition in which the proportion of particles having a volume-based particle size distribution of 3 μm or less is 16.0-40.0%, wherein the ratio (SAe/SAp) of the specific surface area SAe when the carbon material composition is formed into an electrode plate to the specific surface area SAp of the carbon material composition in powdered form is 0.70-1.00 (the specific surface area SAe is the specific surface area of the electrode plate in which the carbon material composition is used).

IPC Classes  ?

  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
  • C01B 32/20 - Graphite
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx

79.

CARBON MATERIAL, NEGATIVE ELECTRODE, AND SECONDARY BATTERY

      
Application Number JP2025012967
Publication Number 2025/206372
Status In Force
Filing Date 2025-03-28
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hasegawa Tatsuya
  • Ishiwatari Nobuyuki
  • Yokomizo Masakazu

Abstract

The present invention pertains to a carbon material in which the linseed oil absorption is 40.0 mL/100 g or less and the frequency q(d50) of d50 in a volume-based particle size distribution is 13.0% or less.

IPC Classes  ?

  • C01B 32/21 - After-treatment
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

80.

EXTERIOR MATERIAL FOR POWER STORAGE DEVICE, PRODUCTION METHOD THEREFOR, AND POWER STORAGE DEVICE

      
Application Number JP2025011580
Publication Number 2025/205680
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
  • DAI NIPPON PRINTING CO., LTD. (Japan)
Inventor
  • Hara Tomoaki
  • Amano Makoto
  • Uchida Mayu

Abstract

Provided is an exterior material for a power storage device which excels in formability and heat resistance. The exterior material for a power storage device is composed of a multilayer body that comprises a base material layer, a barrier layer, and a heat-fusible resin layer, in that order. The base material layer is a polyester film containing polyethylene terephthalate and polybutylene terephthalate at a mass ratio of 65/35 to 90/10. The tensile elongation at break of the polyester film in the width direction is 90 to 155%.

IPC Classes  ?

  • H01M 50/126 - Primary casingsJackets or wrappings characterised by the material having a layered structure comprising three or more layers
  • B29C 55/12 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets multiaxial biaxial
  • B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • C08J 5/18 - Manufacture of films or sheets
  • H01G 11/78 - CasesHousingsEncapsulationsMountings
  • H01M 50/105 - Pouches or flexible bags
  • H01M 50/119 - Metals
  • H01M 50/129 - Primary casingsJackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only organic material
  • H01M 50/131 - Primary casingsJackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
  • H01M 50/133 - Thickness

81.

TRANSFER LAMINATED FILM, METHOD FOR MANUFACTURING SAME, AND TRANSFER METHOD

      
Application Number JP2025005561
Publication Number 2025/204302
Status In Force
Filing Date 2025-02-19
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Norimi, Kosuke
  • Miyashita, Yo

Abstract

Provided is a transfer laminated film having a structural color layer, in particular, a transfer laminated film having a structural color layer on a substrate film and having excellent substrate film peelability after transferral to an adherend. This transfer laminated film comprises a cured resin layer (A), a cured resin layer (B), and a resin layer (C) in this order on one surface of the substrate film, wherein: the cured resin layer (A) is a structural color layer having structural color development properties and composed of a cured product layer of a cured resin composition (a) containing fine particles (X); and the resin layer (C) is a seal layer.

IPC Classes  ?

  • B44C 1/17 - Dry transfer
  • B32B 7/06 - Interconnection of layers permitting easy separation
  • B32B 27/00 - Layered products essentially comprising synthetic resin

82.

POLYETHER COMPOUND, RESIN COMPOSITION, CURED PRODUCT, BUILD-UP FILM, COPPER-CLAD LAMINATE, LAMINATE, ELECTRIC/ELECTRONIC COMPONENT, USE OF RESIN COMPOSITION AS RAW MATERIAL FOR ELECTRIC/ELECTRONIC COMPONENT, AND METHOD FOR PRODUCING POLYETHER COMPOUND

      
Application Number JP2025011045
Publication Number 2025/205435
Status In Force
Filing Date 2025-03-21
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Yoshimura Ryo

Abstract

Provided is a polyether compound which has excellent solvent solubility and can provide a cured product excellent in low dielectric characteristics and metal adhesion in a higher frequency environment. A polyether compound according to the present invention is represented by formula (1) below.

IPC Classes  ?

  • C08G 65/48 - Polymers modified by chemical after-treatment
  • B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
  • B32B 27/00 - Layered products essentially comprising synthetic resin
  • C08F 12/34 - Monomers containing two or more unsaturated aliphatic radicals
  • C08F 16/32 - Monomers containing two or more unsaturated aliphatic radicals
  • C08F 20/20 - Esters of polyhydric alcohols or phenols
  • C08F 290/06 - Polymers provided for in subclass
  • C08F 299/02 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
  • C08J 5/18 - Manufacture of films or sheets
  • C08L 71/08 - Polyethers derived from hydroxy compounds or from their metallic derivatives

83.

ADHESIVE LAYER FOR FLEXIBLE IMAGE DISPLAY DEVICE CONSTITUENT MEMBER, LAMINATE, AND IMAGE DISPLAY DEVICE

      
Application Number JP2025011137
Publication Number 2025/205467
Status In Force
Filing Date 2025-03-21
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Minemoto Masaya

Abstract

The present invention provides the adhesive layer described below as an adhesive layer for a flexible image display device constituent member, which has excellent bending adequacy, and good cohesive force and/or good adhesive force. This adhesive layer for a flexible image display device constituent member satisfies the following requirements [I]-[V]. The adhesive layer is formed of a resin composition that contains a polymer (A), a crosslinking agent (B), and a polymerization initiator (C). The polymer (A) comprises a copolymer that is composed of a compound in which 50 mass% or more of the monomer component contains a (meth)acryloyl group. The crosslinking agent (B) comprises a crosslinking agent that has a functionality of 3 or more. The polymerization initiator (C) comprises a cleavage-type photopolymerization initiator. [I] The shear storage elastic modulus at -20°C is 300 kPa or less. [II] The shear storage elastic modulus at 85°C is 5.0-30 kPa. [III] The gel fraction is 45-95%. [IV] The adhesive force to a PET substrate at 23°C is 5.0 N/cm or more. [V] The recovery rate is 70% or more.

IPC Classes  ?

  • C09J 7/38 - Pressure-sensitive adhesives [PSA]
  • C09J 11/06 - Non-macromolecular additives organic
  • C09J 133/00 - Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereofAdhesives based on derivatives of such polymers

84.

CELL CULTURE METHOD AND CELL CULTURE APPARATUS

      
Application Number JP2025011448
Publication Number 2025/205600
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Tanizaki Yoshie

Abstract

Provided are a cell culture method and a cell culture apparatus which enable efficient removal of dissolved carbon dioxide from a culture solution while suppressing damage to cultured cells, stable maintenance of a dissolved carbon dioxide concentration within a proper range, and reduction in the amount of an alkali to be added. This cell culture method uses a cell culture apparatus including a culture vessel and a gas separation membrane module disposed outside the culture vessel, wherein a plurality of hollow fiber membranes in a housing of the gas separation membrane module have a fixed end part in which both open ends of each hollow fiber membrane folded in U-shape are collectively fixed by potting, and a free end part in which each hollow fiber membrane is folded back in U-shape and is not fixed. In the cell culture method, while part of a culture solution in the culture vessel during cell culture is circulated by being sent to the gas separation membrane module through a culture solution supply tube and then returned from the gas separation membrane module to the culture vessel through a culture solution return tube, the inside of each of the plurality of hollow fiber membranes is depressurized to separate and remove dissolved carbon dioxide from the culture solution in the gas separation membrane module.

IPC Classes  ?

  • C12M 3/06 - Tissue, human, animal or plant cell, or virus culture apparatus with filtration, ultrafiltration, inverse osmosis or dialysis means
  • C12M 1/34 - Measuring or testing with condition measuring or sensing means, e.g. colony counters
  • C12N 5/071 - Vertebrate cells or tissues, e.g. human cells or tissues

85.

COMPOSITION, NONLINEAR OPTICAL ELEMENT, OPTICAL MODULATOR, AND POLYMER COMPOUND

      
Application Number JP2025011521
Publication Number 2025/205646
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Matsumoto Kouki
  • Bando Yoshimasa
  • Gorohmaru Hideki
  • Asato Ryosuke
  • Kojima Souya

Abstract

The present invention addresses the problem of providing: a composition and a polymer compound which are each capable of suppressing aggregation of a dye that has a nonlinear optical effect in a nonlinear optical material, and exhibiting a higher electro-optic effect with respect to the absorbance after poling; a nonlinear optical element which is obtained using the composition; and an optical modulator which comprises the nonlinear optical element and operates on the basis of an electro-optic effect. The present invention pertains to a composition which contains a compound represented by formula (1) and a compound represented by formula (3), wherein the content of the compound represented by formula (3) is 0.0001 mol% to 25 mol% inclusive relative to the total content of the compound represented by formula (1) and the compound represented by formula (3). (Definitions of groups are as set forth in the description.)

IPC Classes  ?

  • C08L 101/00 - Compositions of unspecified macromolecular compounds
  • C08F 20/10 - Esters
  • C08K 5/18 - AminesQuaternary ammonium compounds with aromatically bound amino groups
  • C08K 5/45 - Heterocyclic compounds having sulfur in the ring
  • C08K 5/315 - Compounds containing carbon-to-nitrogen triple bonds
  • C08K 5/1535 - Five-membered rings
  • C08K 5/3415 - Five-membered rings
  • C09B 57/00 - Other synthetic dyes of known constitution
  • G02F 1/061 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on electro-optical organic material
  • G02F 1/355 - Non-linear optics characterised by the materials used
  • G02F 1/361 - Organic materials

86.

POLYESTER FILM AND PRODUCTION METHOD THEREFOR

      
Application Number JP2025011584
Publication Number 2025/205684
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Hara, Tomoaki

Abstract

A polyester film containing a polybutylene terephthalate and a polyethylene terephthalate, wherein the absolute value of the difference between the degree of lateral orientation (Δnv) and the degree of longitudinal orientation (Δnp) of the polyester film is 57 or less.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B29C 55/12 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets multiaxial biaxial
  • B29K 67/00 - Use of polyesters as moulding material

87.

POLYESTER FILM AND PRODUCTION METHOD THEREFOR

      
Application Number JP2025011585
Publication Number 2025/205685
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Hara, Tomoaki

Abstract

A polyester film containing a polybutylene terephthalate and a polyethylene terephthalate, wherein after being subjected to a heat treatment at 160°C for 15 minutes, the coefficient of thermal contraction of the polyester film is less than 5% in one direction among the longitudinal direction and the lateral direction, and is greater than 2.5% in the other direction thereamong.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B29C 55/12 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets multiaxial biaxial
  • B29K 67/00 - Use of polyesters as moulding material

88.

PREPREG, FIBER-REINFORCED COMPOSITE MATERIAL, AND METHOD FOR MANUFACTURING FIBER-REINFORCED COMPOSITE MATERIAL

      
Application Number JP2025011755
Publication Number 2025/205783
Status In Force
Filing Date 2025-03-25
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Ogasawara Hayato

Abstract

One purpose of the present invention is to provide a prepreg and a fiber-reinforced composite material having excellent 90° flexural strength and an excellent elastic modulus while maintaining heat resistance. A prepreg according to one example contains carbon fibers and a matrix resin containing epoxy resins. The prepreg contains, as an epoxy resin, an epoxy resin A that is one or both of a compound represented by a specific chemical formula (1) and a compound represented by a specific chemical formula (2), and the content of the epoxy resin A is 1-35 mass% of the total amount of the epoxy resins. The content of an epoxy resin B having at least one intramolecular sulfur atom is from 0 mass% to less than 3 mass% of the total amount of the epoxy resins, and the content of a novolac-type epoxy resin is from 0 mass% to less than 50 mass% of the total amount of the epoxy resins.

IPC Classes  ?

  • C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
  • C08G 59/22 - Di-epoxy compounds

89.

METHOD AND DEVICE FOR PURIFYING POLYPEPTIDE

      
Application Number JP2025011764
Publication Number 2025/205788
Status In Force
Filing Date 2025-03-25
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Shinoda Ami
  • Kigo Yunje
  • Ohara Shouhei

Abstract

Provided is a method for purifying a polypeptide, the method including: a membrane separation step for separating a liquid containing complexes of a polypeptide and a ligand into a concentrate containing the complexes and a permeate using a separation membrane installed in a membrane module; and, after the membrane separation step, a dissociation step for supplying to the membrane module a dissociation solution for dissociating the complexes, and dissociating the complexes into the polypeptide and the ligand.

IPC Classes  ?

  • C07K 1/34 - ExtractionSeparationPurification by filtration, ultrafiltration or reverse osmosis
  • B01D 61/14 - UltrafiltrationMicrofiltration
  • B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor
  • B01D 71/26 - Polyalkenes
  • C12M 1/12 - Apparatus for enzymology or microbiology with sterilisation, filtration, or dialysis means

90.

EPOXY RESIN COMPOSITION, INSULATING LAYER, ELECTRIC/ELECTRONIC COMPONENT, PRINTED WIRING BOARD, USE OF EPOXY RESIN COMPOSITION AS RAW MATERIAL FOR INSULATOR, AND METHOD FOR PRODUCING POLYMER

      
Application Number JP2025011775
Publication Number 2025/205795
Status In Force
Filing Date 2025-03-25
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Teshima Gaku
  • Nishimura Masanari
  • Kida Noriyuki

Abstract

Provided is an epoxy resin composition capable of suppressing viscosity increase even during long-term storage. An epoxy resin composition according to the present invention contains a polymer component, wherein: the weight-average molecular weight of the polymer component is 10,000 or more; the polymer component contains a polymer represented by formula (1); and at least a part of the polymer component is a polymer having a specific group.

IPC Classes  ?

  • C08G 59/02 - Polycondensates containing more than one epoxy group per molecule
  • H05K 1/03 - Use of materials for the substrate

91.

WATER-SOLUBLE FILM AND MEDICINE PACKAGE

      
Application Number JP2025011957
Publication Number 2025/205905
Status In Force
Filing Date 2025-03-26
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Kaneta Kenji
  • Terazawa Madoka
  • Yoshimura Nobuyoshi

Abstract

The present invention provides the water-soluble film described below, which is excellent in terms of moldability and mechanical properties such as film strength and elongation, and which is also excellent in terms of sealability. A water-soluble film which contains a polyvinyl alcohol resin, an unmodified starch, and a plasticizer, wherein: the polyvinyl alcohol resin contains a modified polyvinyl alcohol resin; the amylopectin content of the unmodified starch is 85% or more; and the ratio of the unmodified starch to the total mass of the unmodified starch and the plasticizer is 20-78 mass%.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • C08K 5/053 - Polyhydroxylic alcohols
  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

92.

WATER-SOLUBLE FILM, METHOD FOR PRODUCING SAME, PACKAGE, MEDICINE PACKAGE, AND METHOD FOR PRODUCING SAME

      
Application Number JP2025011958
Publication Number 2025/205906
Status In Force
Filing Date 2025-03-26
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Kaneta Kenji
  • Terazawa Madoka
  • Yoshimura Nobuyoshi

Abstract

The present invention provides a water-soluble film which is excellent in terms of mechanical properties such as strength and stretchability in cases where a polyvinyl alcohol-based resin is used in combination with a naturally derived starting material in a relatively high content, and which is excellent in terms of water sealability that is useful for packaging applications. The present invention discloses a water-soluble film which contains a polyvinyl alcohol-based resin and at least one naturally derived starting material that is selected from the group consisting of saccharides, sugar alcohols, lipids, proteins, and salts thereof. The content of the naturally derived starting material is 40 mass% or more with respect to 100 mass% of the water-soluble film (the solid content), and the viscosity at 20°C of the 1 mass% aqueous solution of the water-soluble film is 2.00-2.60 mPa∙s.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • C08K 5/053 - Polyhydroxylic alcohols
  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

93.

POLARIZING FILM, METHOD FOR PRODUCING SAME, AND POLARIZING PLATE

      
Application Number JP2025012046
Publication Number 2025/205952
Status In Force
Filing Date 2025-03-26
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Kayaba Yuki
  • Lim Daekyun

Abstract

The present invention enables improvement of the uniform durability of the surface of a polarizing film, furthermore enables introduction of an acid scavenger by a simple method without improving equipment, and provides a polarizing plate excellent in long-term heat resistant durability. Provided is a polarizing film containing an acid scavenger, the polarizing film including a polyvinyl alcohol-based film, and the elemental nitrogen content in at least one surface of the polyvinyl alcohol-based film being 0.05 mass% or more in a surface layer portion from the surface to a depth of 0.5 nm in the thickness direction of the polyvinyl alcohol-based film.

IPC Classes  ?

94.

POLYVINYL ALCOHOL-BASED FILM, METHOD FOR PRODUCING POLYVINYL ALCOHOL-BASED FILM, POLARIZING FILM, AND POLARIZING PLATE

      
Application Number JP2025012048
Publication Number 2025/205954
Status In Force
Filing Date 2025-03-26
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor Yuyama Kazuya

Abstract

0.02-0.250.02-0.25) of the thickness included in the range of a spatial frequency (A) of 0.02-0.25/mm is 0.1 μm or less.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B29C 41/26 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of indefinite length by depositing flowable material on a rotating drum
  • G02B 5/30 - Polarising elements
  • H10K 50/86 - Arrangements for improving contrast, e.g. preventing reflection of ambient light

95.

ETCHING COMPOSITION, ETCHING METHOD, METHOD FOR PRODUCING SEMICONDUCTOR DEVICE, AND METHOD FOR PRODUCING CFET

      
Application Number JP2025012289
Publication Number 2025/206082
Status In Force
Filing Date 2025-03-27
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Shirae, Hiroyuki
  • Suzuki, Tatsunobu

Abstract

Provided are: an etching composition which exhibits excellent selective solubility of two types of silicon-germanium having different germanium content values; an etching method in which the etching composition is used; a method for producing a semiconductor device; and a method for producing a CFET. The etching composition contains an oxidizing agent (A), a fluorine-containing compound (B) and a silane compound (C). The silane compound (C) has, in at least one part, a structure which contains at least one oxygen atom or nitrogen atom and in which a silicon atom is bonded to the oxygen atom or nitrogen atom via a hydrocarbon group. In a substrate having a first face containing silicon-germanium and a second face containing silicon-germanium having a higher germanium content than the first face, the etching composition selectively dissolves the second face over the first face.

IPC Classes  ?

  • H01L 21/308 - Chemical or electrical treatment, e.g. electrolytic etching using masks

96.

GRAPHITE PARTICLES, CARBON MATERIAL, AND SECONDARY BATTERY

      
Application Number JP2025012550
Publication Number 2025/206211
Status In Force
Filing Date 2025-03-27
Publication Date 2025-10-02
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Sugiyama Yusuke
  • Iwade Miki

Abstract

The present invention relates to graphite particles coated with amorphous carbon, wherein, when the particles are pressurized to a pressure of 9.81 mN and then decompressed to 0.05 mN, a value derived by dividing the particle size displacement amount observed when the pressure is released so as to reach 0.05 mN after reaching 9.81 mN by the particle size displacement amount at the time at which 9.81 mN is reached is 0.5 or greater.

IPC Classes  ?

  • C01B 32/21 - After-treatment
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

97.

MOLDING MATERIAL, MOLDED ARTICLE, AND CATHETER

      
Application Number JP2025010666
Publication Number 2025/197955
Status In Force
Filing Date 2025-03-19
Publication Date 2025-09-25
Owner
  • MCPP INNOVATION LLC (Japan)
  • MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yomogizawa Ayako
  • Hoshino Junichi

Abstract

The purpose of the present invention is: to provide a molding material comprising a thermoplastic polyurethane that enables the formation of a molded article having flexibility, and such molded article; and to provide an indwelling catheter using this molding material, the catheter being resistant to kinking even if the diameter is small. The catheter comprises a molding material containing a thermoplastic polyurethane having a hard segment including a structural unit derived from an aromatic isocyanate compound and a soft segment including a structural segment derived from a carbonate-based polyol, and having a hardness of A65 or less. Also, the molding material comprises a thermoplastic polyurethane having a hard segment containing a structural unit derived from an aromatic isocyanate compound and a soft segment containing a structural unit derived from a carbonate-based polyol. The carbonate-based polyol includes, as a polyol component, a structural unit derived from 1,10-decanediol.

IPC Classes  ?

  • A61L 29/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • A61L 29/08 - Materials for coatings
  • A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • A61L 31/10 - Macromolecular materials
  • A61L 31/14 - Materials characterised by their function or physical properties
  • A61M 25/00 - CathetersHollow probes
  • C08G 18/44 - Polycarbonates
  • C08G 18/65 - Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
  • C09D 175/04 - Polyurethanes
  • C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers

98.

LAMINATED SHEET, LAMINATED SHEET WITH RELEASE FILM, SHEET CURED PRODUCT, AND CIRCUIT BOARD MATERIAL

      
Application Number JP2025011049
Publication Number 2025/198019
Status In Force
Filing Date 2025-03-21
Publication Date 2025-09-25
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Hayakawa Yuuko
  • Hashimoto Ryuuichirou
  • Tanaka Kazuya

Abstract

The present invention provides: a laminated sheet which has low dielectric characteristics and excellent conductor adhesion, has a low linear thermal expansion coefficient, and stably exhibits low dielectric characteristics even under a temperature change or humidity change due to a use environment; and a circuit board material using same. A laminated sheet S1 according to one example has a support layer (1) and at least two or more resin layers L1 (2) provided on both surfaces of the support layer (1), wherein the support layer (1) contains at least one selected from the group consisting of polyimide resins, cyclic olefin resins, liquid crystal polymers, and polyamide resins; the resin layer (2) in the laminated sheet S1 contains at least one thermoplastic resin (A) selected from the group consisting of styrene-based thermoplastic elastomers, olefin-based thermoplastic elastomers, and ethylene-based polymers; and the laminated sheet S1 satisfies the formula: Y/(X+Y) ≤ 0.40. X is the thickness of the resin layer (2) in the laminated sheet S1, and Y is the thickness of the support layer (1) in the laminated sheet S1.

IPC Classes  ?

  • B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
  • B32B 27/26 - Layered products essentially comprising synthetic resin characterised by the use of special additives using curing agents

99.

RELEASE FILM

      
Application Number JP2025004204
Publication Number 2025/197349
Status In Force
Filing Date 2025-02-07
Publication Date 2025-09-25
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Yasutomi, Shiro
  • Suzuki, Taro
  • Hayakawa, Arisa
  • Suzuki, Tomohiro
  • Hara, Tomoaki

Abstract

This release film is provided with a resin layer A on at least one surface of a copolyester film that contains a copolyester. The storage modulus of the release film is 1000 MPa or less at 80°C, and is 30 MPa or more at 180°C. The ratio of the storage modulus at 80°C with respect to the storage modulus at 180°C is 13 or less.

IPC Classes  ?

  • B29C 33/68 - Release sheets
  • B32B 27/00 - Layered products essentially comprising synthetic resin
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • C08J 5/18 - Manufacture of films or sheets
  • H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings

100.

THERMOSETTING COMPOSITION, METHOD FOR PRODUCING THERMOSETTING SHEET, THERMALLY CONDUCTIVE SHEET, HEAT-DISSIPATING LAYERED PRODUCT, HEAT-DISSIPATING CIRCUIT BOARD, AND POWER SEMICONDUCTOR DEVICE

      
Application Number JP2025010751
Publication Number 2025/197972
Status In Force
Filing Date 2025-03-19
Publication Date 2025-09-25
Owner MITSUBISHI CHEMICAL CORPORATION (Japan)
Inventor
  • Taniguchi Sae
  • Tanaka Toshiyuki
  • Sawamura Toshiyuki
  • Kato Tomoki

Abstract

The present invention relates to a thermosetting composition that contains an inorganic filler and a thermosetting compound. The present invention provides a thermosetting composition, as a thermosetting composition having excellent heat resistance such that when a cured product of the thermosetting composition is joined to a substrate under high temperature conditions of 150ºC or higher, such as in a reflow process or sinter bonding, cracks do not appear in the cured product and the join does not separate. The thermosetting composition contains an inorganic filler and a thermosetting compound and is characterized in that the fracture energy value, which is obtained by subjecting a cured product formed by curing the thermosetting composition to 3-point bending measurements at 190ºC, is 55 kPa or more and the fracture energy value obtained through 3-point bending measurements at 150ºC is 80 kPa or more.

IPC Classes  ?

  • C08L 101/00 - Compositions of unspecified macromolecular compounds
  • C08G 59/00 - Polycondensates containing more than one epoxy group per moleculeMacromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compoundsMacromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 3/38 - Boron-containing compounds
  • C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
  • H01L 23/12 - Mountings, e.g. non-detachable insulating substrates
  • H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
  • H01L 23/373 - Cooling facilitated by selection of materials for the device
  • H05K 1/03 - Use of materials for the substrate
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