Tatsuta Chemical Co., Ltd.

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IPC Class
B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin 9
C08L 27/06 - Homopolymers or copolymers of vinyl chloride 9
B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off 8
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material 8
B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes 7
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Found results for  patents

1.

Vinyl chloride-based resin composition for powder molding, and vinyl chloride-based resin-molded body and laminate

      
Application Number 16760773
Grant Number 11643541
Status In Force
Filing Date 2018-08-21
First Publication Date 2021-06-17
Grant Date 2023-05-09
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada, Kentaro
  • Shimizu, Nobuyuki

Abstract

A composition of polyvinyl chloride for powder molding may include a polyvinyl chloride (A), a polyvinyl chloride (B), and a phosphate, among others. The polyvinyl chloride (A) may have an average particle diameter of 50 to 500 μm, and the polyvinyl chloride (B) may have an average particle diameter of 0.01 μm or more and less than 50 μm. An average polymerization degree of the polyvinyl chloride (A) may be 1350 or more, and the phosphate may comprise a polyoxyalkylene alkyl phosphate.

IPC Classes  ?

  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • B29K 27/06 - PVC, i.e. polyvinylchloride
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

2.

Powder slush molded body of vinyl chloride resin composition, and laminate

      
Application Number 16756660
Grant Number 11312848
Status In Force
Filing Date 2018-10-12
First Publication Date 2020-10-22
Grant Date 2022-04-26
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada, Kentaro
  • Hosomi, Kohei

Abstract

2 or less. Thus, provided are a powder slush molded body of a polyvinyl chloride composition having high flexibility after heat aging as well as favorable surface characteristics, and a laminate.

IPC Classes  ?

  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • 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 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
  • B29K 27/06 - PVC, i.e. polyvinylchloride
  • B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • C08K 5/00 - Use of organic ingredients
  • C08L 33/08 - Homopolymers or copolymers of acrylic acid esters

3.

Vinyl chloride-based resin composition for powder molding, and vinyl chloride-based resin molded body and laminate

      
Application Number 16760722
Grant Number 11312849
Status In Force
Filing Date 2018-08-21
First Publication Date 2020-09-17
Grant Date 2022-04-26
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada, Kentaro
  • Shimizu, Nobuyuki
  • Kanou, Shigehiro

Abstract

A composition of polyvinyl for powder molding may include a polyvinyl chloride (A), a polyvinyl chloride (B), a plasticizer, and an alkyl phosphate. The polyvinyl chloride (A) may have an average particle diameter of 50 μm to 500 μm, and the polyvinyl chloride (B) may have an average particle diameter of 0.01 μm or more and less than 50 μm. An average polymerization degree of the polyvinyl chloride (A) may be 1350 or more, the alkyl phosphate may comprise a mono-alkyl phosphate, and the number of carbon atoms of an alkyl group in the alkyl phosphate may be 5 or more.

IPC Classes  ?

  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • 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 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • C08K 5/00 - Use of organic ingredients
  • C08K 5/092 - Polycarboxylic acids
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

4.

VINYL CHLORIDE RESIN COMPOSITION FOR POWDER MOLDING, VINYL CHLORIDE RESIN MOLDED BODY, AND LAMINATE

      
Application Number JP2020008685
Publication Number 2020/179732
Status In Force
Filing Date 2020-03-02
Publication Date 2020-09-10
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada Kentaro
  • Wakamatsu Junpei
  • Hosomi Kohei

Abstract

The present invention relates to a vinyl chloride resin composition for powder molding including 100 parts by mass of a vinyl chloride resin (A), 120-200 parts by mass of a polyester plasticizer, and 4-23 parts by mass of an acrylic polymer, wherein the vinyl chloride resin (A) has an average particle diameter of 50-500 μm and an average degree of polymerization of 1700 or more; the acrylic polymer includes 40-95% by mass of a structural unit derived from methyl(meth)acrylate and 5-60% by mass of a structural unit derived from at least one (meth)acrylic acid ester selected from the group consisting of a (meth)acrylic acid ester of an aliphatic alcohol having 2 or more carbon atoms and a (meth)acrylic acid ester of an aromatic alcohol.

IPC Classes  ?

  • B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
  • B29C 41/36 - Feeding the material on to the mould, core or other substrate
  • B29K 27/06 - PVC, i.e. polyvinylchloride
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 27/22 - Layered products essentially comprising synthetic resin characterised by the use of special additives using plasticisers
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • C08K 5/10 - EstersEther-esters
  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
  • C08L 83/04 - Polysiloxanes

5.

Vinyl chloride resin composition for powder molding, vinyl chloride resin molded body and laminate

      
Application Number 16756449
Grant Number 11685827
Status In Force
Filing Date 2018-10-12
First Publication Date 2020-08-13
Grant Date 2023-06-27
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada, Kentaro
  • Hosomi, Kohei

Abstract

A polyvinyl chloride composition for powder molding includes a polyvinyl chloride (A) an amount of 100 parts by mass, a plasticizer in an amount of 110 parts by mass or more and 150 parts by mass or less, and an acrylic polymer in an amount of 4 parts by mass or more and 23 parts by mass or less. The polyvinyl chloride (A) has an average particle diameter of 50 μm or more and 500 μm or less and an average degree of polymerization of 1,350 or more. The acrylic polymer has an average particle diameter of 0.01 μm or more and 10 μm or less and contains a constitutional unit derived from a (meth) acrylic ester in an amount of 50 mass % or more.

IPC Classes  ?

  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • B29C 41/00 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor
  • B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • C08J 3/12 - Powdering or granulating
  • C08K 5/00 - Use of organic ingredients
  • C08K 5/105 - EstersEther-esters of monocarboxylic acids with phenols
  • C08L 33/08 - Homopolymers or copolymers of acrylic acid esters
  • C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
  • C08L 83/10 - Block- or graft-copolymers containing polysiloxane sequences

6.

VINYL CHLORIDE-BASED RESIN COMPOSITION FOR POWDER MOLDING, AND VINYL CHLORIDE-BASED RESIN-MOLDED BODY AND LAMINATE

      
Application Number JP2018030854
Publication Number 2019/087533
Status In Force
Filing Date 2018-08-21
Publication Date 2019-05-09
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada Kentaro
  • Shimizu Nobuyuki
  • Kanou Shigehiro

Abstract

The present invention pertains to a vinyl chloride-based resin composition for powder molding, the resin composition containing a vinyl chloride-based resin (A) having an average particle size of 50-500 μm, a vinyl chloride-based resin (B) having an average particle size of less than 50 μm, a plasticizer, and an alkyl phosphate ester, wherein the average degree of polymerization of the vinyl chloride-based resin (A) is at least 1350, the alkyl phosphate ester has an alkyl group having a carbon number of at least 5 and includes a monoalkyl phosphate ester, the blending amount of the vinyl chloride-based resin (B) is 5-40 parts by mass, the blending amount of the plasticizer is 110-150 parts by mass, and the blending amount of the alkyl phosphate ester is 0.1-3.0 parts by mass with respect to 100 parts by mass of the vinyl chloride-based resin (A). As a result, a vinyl chloride-based resin composition for powder molding, and a vinyl chloride-based resin molded body and laminate are provided, the resin composition having good heat aging resistance and high adhesion to a foamed polyurethane layer, enabling easy separation of a mold from a slush molding die, and being capable of producing a molded body having reduced odor.

IPC Classes  ?

  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B60R 13/02 - Trim mouldingsLedgesWall linersRoof liners
  • C08K 5/12 - EstersEther-esters of cyclic polycarboxylic acids
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

7.

VINYL CHLORIDE-BASED RESIN COMPOSITION FOR POWDER MOLDING, AND VINYL CHLORIDE-BASED RESIN-MOLDED BODY AND LAMINATE

      
Application Number JP2018030856
Publication Number 2019/087534
Status In Force
Filing Date 2018-08-21
Publication Date 2019-05-09
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada Kentaro
  • Shimizu Nobuyuki

Abstract

The present invention pertains to a vinyl chloride-based resin composition for powder molding, the resin composition containing a vinyl chloride-based resin (A) having an average particle size of 50-500 μm and an average degree of polymerization of at least 1350, a vinyl chloride-based resin (B) having an average particle size of at least 0.01 μm and less than 50 μm, a plasticizer, and a phosphate ester, wherein the phosphate ester is polyoxyalkylene alkyl phosphate ester, the blending amount of the vinyl chloride-based resin (B) is 5-40 parts by mass, the blending amount of the plasticizer is 120-150 parts by mass, and the blending amount of the polyoxyalkylene alkyl phosphate ester is 0.1-3.0 parts by mass with respect to 100 parts by mass of the vinyl chloride-based resin (A). As a result, a vinyl chloride-based resin composition for powder molding, and a vinyl chloride-based resin molded body and laminate are provided, the resin composition having good heat aging resistance and high adhesion to a foamed polyurethane layer, enabling easy separation of a mold from a slush molding die, and being capable of producing a molded body having reduced odor.

IPC Classes  ?

  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B60R 13/02 - Trim mouldingsLedgesWall linersRoof liners
  • C08K 5/12 - EstersEther-esters of cyclic polycarboxylic acids
  • C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

8.

POWDER SLUSH-MOLDED ARTICLE OF VINYL CHLORIDE-BASED RESIN COMPOSITION AND LAMINATE

      
Application Number JP2018038111
Publication Number 2019/078112
Status In Force
Filing Date 2018-10-12
Publication Date 2019-04-25
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada Kentaro
  • Hosomi Kohei

Abstract

The present invention pertains to a powder slush-molded article of a vinyl chloride-based resin composition, said vinyl chloride-based resin composition comprising a vinyl chloride-based resin, a plasticizer and an acrylic polymer, characterized in that: the vinyl chloride-based resin composition contains 110-150 parts by mass inclusive of the plasticizer per 100 parts by mass of the vinyl chloride-based resin; and, when a cross section of the powder slush-molded article parallel to the thickness direction thereof is observed under reflected light of an optical microscope, irregular scale-shaped vinyl chloride-based resin particles having a major diameter of 30-500 μm inclusive are continuously positioned via interfacial parts, and aggregated acrylic polymer particles having a major diameter of 30-100 μm inclusive exist at a rate of 10 particles/mm2 or less. Thus, a powder slush-molded article of a vinyl chloride-based resin composition, which has a high flexibility after heat-aging and good surface properties, and a laminate are provided.

IPC Classes  ?

  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • C08K 5/10 - EstersEther-esters
  • C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
  • B29K 27/06 - PVC, i.e. polyvinylchloride
  • B29L 31/58 - Upholstery or cushions, e.g. vehicle upholstery or interior padding

9.

VINYL CHLORIDE RESIN COMPOSITION FOR POWDER MOLDING, VINYL CHLORIDE RESIN MOLDED BODY AND LAMINATE

      
Application Number JP2018038088
Publication Number 2019/078108
Status In Force
Filing Date 2018-10-12
Publication Date 2019-04-25
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Takesada Kentaro
  • Hosomi Kohei

Abstract

The present invention pertains to a vinyl chloride resin composition for powder molding, including 100 mass parts of a vinyl chloride resin (A), 110-150 mass parts inclusive of a plasticizer, and 4-23 mass parts inclusive of an acrylic polymer. The vinyl chloride resin (A) has an average particle diameter of 50-500 μm inclusive and an average polymerization degree of 1350 or above. The acrylic polymer has an average particle diameter of 0.01-10 μm inclusive and includes at least 50 mass% of (meth)acrylic ester-derived constituent units. The (meth)acrylic ester includes at least one substance selected from the group consisting of (meth)acrylic esters of an aromatic alcohol and (meth)acrylic esters of an aliphatic alcohol having two or more carbon atoms. A vinyl chloride resin composition for powder molding that makes it possible to obtain a molded body that has a high flexibility after thermal aging and satisfactory surface characteristics, a vinyl chloride resin molded body, and a laminate are thereby provided.

IPC Classes  ?

  • C08L 27/06 - Homopolymers or copolymers of vinyl chloride
  • B29C 41/18 - Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • C08K 5/12 - EstersEther-esters of cyclic polycarboxylic acids
  • C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
  • 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

10.

SHEET FOR INKJET PRINTING AND METHOD FOR PRODUCING SAME

      
Application Number JP2017025945
Publication Number 2018/055886
Status In Force
Filing Date 2017-07-18
Publication Date 2018-03-29
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Kuroda Rie
  • Ishibashi Hiroyuki

Abstract

The present invention relates to a sheet 10 for inkjet printing, which comprises a substrate sheet 1 that is configured from a vinyl chloride resin composition and an adhesive layer 2 that is arranged on one surface of the substrate sheet. The vinyl chloride resin composition contains a vinyl chloride resin A and a plasticizer B; the vinyl chloride resin A is a vinyl chloride-vinyl acetate copolymer or a mixture of a vinyl chloride homopolymer and a vinyl chloride-vinyl acetate copolymer; the vinyl acetate content in the vinyl chloride resin A is 3.5-9.5% by weight; and the plasticizer B is a liquid acrylic polymer and/or a polyester-based plasticizer having a viscosity of 300 mPa·s or more at 25°C.

IPC Classes  ?

  • B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
  • B32B 27/00 - Layered products essentially comprising synthetic resin
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B41J 2/01 - Ink jet
  • B41M 5/50 - Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording

11.

EXTRUDED THERMOPLASTIC ELASTOMER FOAM SHEET

      
Application Number JP2015083543
Publication Number 2016/093091
Status In Force
Filing Date 2015-11-30
Publication Date 2016-06-16
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Shibaya Miaki
  • Fukuda Ryuji
  • Sunaga Isato
  • Koibuchi Kenichi

Abstract

The purpose of the present invention is to provide an extruded thermoplastic elastomer foam sheet which has lightweight and excellent impact absorbing properties and can be used suitably as, for example, a protector or protective mat for body protection purposes or the like which is used for reducing bruise, bone fracture or the like in the fields of sports, medicine, nursing care and the like. The extruded thermoplastic elastomer foam sheet according to the present invention is characterized by being produced by the extrusion expansion of a foamable composition comprising (A) a thermoplastic elastomer that is a block copolymer composed of a polymer block containing isobutyrene as a constituent monomer and a polymer block containing an aromatic vinyl monomer as a constituent monomer and (B) thermally expansive microcapsules.

IPC Classes  ?

  • C08J 9/32 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof from compositions containing microballoons, e.g. syntactic foams

12.

Decorative resin sheet, and molded resin article and process for production thereof

      
Application Number 13877867
Grant Number 09434096
Status In Force
Filing Date 2011-09-06
First Publication Date 2013-08-22
Grant Date 2016-09-06
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Yamashita, Koichi
  • Kanou, Shigehiro
  • Nishikawa, Masami
  • Yaguchi, Kaoru
  • Tonomura, Fumihito

Abstract

Provided are a decorative resin sheet that sufficiently brings together embossing property and embossment-retaining property, and a molded resin article on which an embossment excellent in design is formed and a method of manufacturing the molded resin article. The method of manufacturing a molded resin article includes the steps of: providing a resin sheet having a mold layer containing a polyolefin-based resin as a main component, followed by formation of an embossment on the resin sheet so that the embossment is formed on a surface of the mold layer; crosslinking the mold layer on which the embossment is formed so that a 100% modulus of the resin sheet at 200° C. becomes 0.02 MPa or more, which is measured in conformity with JIS K6251 (2004 version); placing the resultant resin sheet (10) in an injection molding die (20) so that the surface (11) of the mold layer faces a side from which a molten resin (30) is injected; injecting the molten resin (30) onto a side of the surface (11) of the mold layer in the injection molding die (20) to mold a molded resin article; and separating the molded resin article and the mold layer.

IPC Classes  ?

  • B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
  • B32B 3/30 - 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 particular shape of the outline of the cross-section of a continuous layerLayered 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 layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
  • B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
  • B29C 45/37 - Mould cavity walls
  • 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
  • B29D 7/01 - Films or sheets
  • B32B 3/26 - 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 particular shape of the outline of the cross-section of a continuous layerLayered 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 layer with cavities or internal voids
  • B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation

13.

DECORATIVE RESIN SHEET, AND MOLDED RESIN ARTICLE AND PROCESS FOR PRODUCTION THEREOF

      
Application Number JP2011070220
Publication Number 2012/046531
Status In Force
Filing Date 2011-09-06
Publication Date 2012-04-12
Owner
  • KANEKA CORPORATION (Japan)
  • TATSUTA CHEMICAL CO., LTD. (Japan)
Inventor
  • Yamashita, Koichi
  • Kanou, Shigehiro
  • Nishikawa, Masami
  • Taniguchi, Kaoru
  • Tomura, Fumihito

Abstract

Provided are: a decorative resin sheet which has both embossing properties and emboss-retaining properties at satisfactory levels; a molded resin article on which an emboss having an excellent design is formed; and a process for producing the molded resin article. This process for producing the molded resin article comprises the steps of: providing a resin sheet which has a mold layer containing a polyolefin resin as the main component, and forming an emboss on the resin sheet so that the emboss is formed on the surface of the mold layer; crosslinking the mold layer having the emboss formed thereon in such a manner that the resin sheet can have a 100% modulus of 0.02 MPa or more at 200°C as measured in accordance with JIS K6251 (2004 version); arranging the resulting resin sheet (10) in an injection molding mold (20) in such a manner that the surface (11) of the mold layer faces the side of the injection of a molten resin (30); injecting the molten resin (30) onto the surface (11) side of the mold layer in the injection molding mold (20) to form a molded resin article; and separating the molded resin article from the mold layer.

IPC Classes  ?

  • B29C 45/16 - Making multilayered or multicoloured articles
  • B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
  • B29C 59/02 - Surface shaping, e.g. embossingApparatus therefor by mechanical means, e.g. pressing
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins