A metal-resin composite molded product including a metal member and a thermoplastic resin that are joined to each other. The metal member in this metal-resin composite molded product includes one surface, and the one surface includes a joint surface portion that is joined to the thermoplastic resin and on which unevenness is formed. A cluster of substantially spherical parts are formed on the joined surface portion and the arithmetic mean peak curvature for the cluster is in a range from 2500 to 5000 (1/mm).
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B23K 26/352 - Travail par rayon laser, p. ex. soudage, découpage ou perçage pour le traitement de surface
B29K 705/00 - Utilisation de métaux, leurs alliages ou leurs composés pour des pièces préformées, p. ex. pour des inserts
B32B 15/08 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique
2.
POLYARYLENE SULFIDE RESIN COMPOSITION, METHOD FOR PRODUCING SAME, MOLDED PRODUCT, AND METHOD FOR SUPPRESSING COLORED FOREIGN MATTER IN RESIN COMPOSITION
Provided are: a polyarylene sulfide resin composition in which the generation and contamination of colored foreign matter are suppressed; a method for producing the same; and a molded product. Also provided is a method for suppressing colored foreign matter in a polyarylene sulfide resin composition. The polyarylene sulfide resin composition comprises: 100 parts by mass of a polyarylene sulfide resin (A); and 0.03-5 parts by mass of a colored foreign matter inhibitor (B) including at least one selected from the group consisting of zinc hydroxide, zinc acetate, zinc oxide, zinc carbonate and basic zinc carbonate.
Provided are a powder material for a 3D printer that makes it possible to obtain a three-dimensional molded article having good appearance and mechanical characteristics and further having excellent heat resistance, and a three-dimensional molded object using the same. A powder material (X) for a 3D printer contains polybutylene terephthalate resin powder (I). When measured by differential scanning calorimeter when the temperature was raised from 30°C to 260°C at a rate of 20°C/min, the polybutylene terephthalate resin powder (I) has an enthalpy of fusion ΔHm1 in the first run of 50 J/g or less and an enthalpy of fusion ΔHm2 in the second run of 30 J/g or more.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
The first problem addressed by the present invention is to provide a crosslinked polyarylene sulfide resin composition with which it is possible to suppress the occurrence of die build-up during pellet production. This crosslinked polyarylene sulfide resin composition satisfies item (1) or item (2): (1) contains, with respect to 100 parts by mass of a crosslinked polyarylene sulfide resin (A), 0.04-3.0 parts by mass of a lubricant (B1) having a weight loss rate of 20% or less after heating from 50°C to 360°C at a temperature rise rate of 45°C per minute under a nitrogen atmosphere and maintaining 360°C for 30 minutes (2) contains, with respect to 100 parts by mass of the resin (A), 0.04-3.0 parts by mass of a lubricant (B2) other than the lubricant (B1), and 0.1-1.0 parts by mass of a silane coupling agent (C).
C08L 23/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères
Provided are: a resin composition with which discoloration of a regenerated cellulose fiber caused by thermoforming can be suppressed and a molded article having excellent mechanical properties can be obtained; and a method for producing same. The resin composition contains: a regenerated cellulose fiber (A) containing a fiber stabilizer (S) including a polyhydric alcohol; and a thermoplastic resin (B). Preferably, the fiber stabilizer (S) adheres to at least a portion of the surface of the regenerated cellulose fiber (A) and/or penetrates into at least a portion of the inside of the regenerated cellulose fiber (A).
Provided is a method for producing a three-dimensional object by a melting/layer-by-layer stacking process using an object-forming material including a crystalline thermoplastic resin as a main component. In the method, the layers being stacked do not separate from the object-forming stage during object formation and a three-dimensional object having little deformation is obtained. This method for producing a three-dimensional object comprises producing a three-dimensional object by a melting/layer-by-layer stacking process using an object-forming material including a crystalline thermoplastic resin as a main component, while keeping the temperature of the atmosphere inside the chamber at [(melting point (mp) of the crystalline thermoplastic resin)-50°C] to [(the melting point (mp))-20°C].
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
Provided are: a new resin composition from which it is possible to obtain a molded article that does not exhibit draw‑down when exposed to air having a high temperature exceeding the melting point of a thermoplastic resin; and a molded article thereof. This resin composition contains a thermoplastic resin (A) and a draw-down inhibitor (B) containing an inorganic filler (b2) and an epoxy group- and/or glycidyl group-containing polymer (b1), and satisfies any of specific conditions (I)-(III). The polymer (b1) preferably includes at least one selected from an epoxy group- and/or glycidyl group-containing olefin-based copolymer (b11) and an epoxy resin (b12).
A polyester resin composition comprising a polybutylene terephthalate resin, a recycled polyethylene terephthalate resin, a transesterification inhibitor, and a flame retardant, wherein the amount of terminal hydroxyl groups in the polybutylene terephthalate resin is 30-70 mmol/kg, with respect to the total amount of the polybutylene terephthalate resin and the recycled polyethylene terephthalate resin.
The present invention achieves highly accurate and efficient prediction of strength of an additive-manufactured object. In order to solve this problem, a structure analysis method according to the present invention includes dividing the shape of an additive-manufactured object exhibiting anisotropy into a plurality of elements, imparting direction information corresponding to a movement direction of a discharge head to each of the divided elements on the basis of forming path information indicating a movement path of the discharge head when the additive-manufactured object exhibiting anisotropy is formed by a 3D printer, creating a structure analysis model of the additive-manufactured object exhibiting anisotropy by imparting, to the element, physical property value information corresponding to the imparted direction information, and executing structure analysis using the created structure analysis model.
G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
G06F 113/10 - Fabrication additive, p. ex. impression en 3D
The polyarylene sulfide resin composition contains a (A) polyarylene sulfide resin; a (B) fibrous inorganic filler that has a different diameter ratio, which is the ratio of the long diameter and the short diameter of a cross section perpendicular to the longitudinal direction, of 3.0 or more; and an (C) alkoxysilane compound. The cooling crystallization temperature (Tc) of the (A) polyarylene sulfide resin is 215° C. or more; the content of the (B) fibrous inorganic filler that has an different diameter ratio, which is the ratio of the long diameter and short diameter of a cross section perpendicular to the longitudinal direction, of 3.0 or more, is 55 to 180 parts by mass per 100 parts by mass of the (A) polyarylene sulfide resin; and the content of the (C) alkoxysilane compound is 0.5 to 10 parts by mass per 100 parts by mass of the (A) polyarylene sulfide resin.
C08J 5/10 - Renforcement des composés macromoléculaires avec des matériaux fibreux en vrac ou en nappes caractérisé par les additifs utilisés dans le mélange de polymères
C08J 5/04 - Renforcement des composés macromoléculaires avec des matériaux fibreux en vrac ou en nappes
C08K 5/544 - Composés contenant du silicium contenant de l'azote
Provided is a filament for three-dimensional molding with which three-dimensional molding with fused filament fabrication is possible. Provided are a three-dimensional molded article using the filament for three-dimensional molding and a method for producing the same.
Provided is a filament for three-dimensional molding with which three-dimensional molding with fused filament fabrication is possible. Provided are a three-dimensional molded article using the filament for three-dimensional molding and a method for producing the same.
The filament for three-dimensional molding contains a polyacetal resin, wherein a difference between a melting point Tm2 and a crystallization temperature Tc (Tm2−Tc) measured by a differential scanning calorimeter is 22° C. or higher and 40° C. or lower, and a melt flow rate measured at a temperature of 190° C. and a load of 2.16 kg is 0.8 g/10 min. or more and 8.0 g/10 min. or less.
D01F 6/66 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyéthers
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29K 59/00 - Utilisation de polyacétals comme matière de moulage
Provided are a three-dimensional molded article in which a crystalline thermoplastic resin is used and which has excellent mechanical characteristics, and a method for production thereof. The three-dimensional molded article is obtained by fused filament fabrication with a filament containing a crystalline thermoplastic resin, and the void ratio in the three-dimensional molded article is 5% or less. The method for producing the three-dimensional molded article involves forming the three-dimensional molded article by using a 3D printer to deposit layers of a filament containing the crystalline thermoplastic resin by fused filament fabrication. A setting value for a discharge amount input to the 3D printer or to 3D printer data processing software should preferably be a value greater than 100%.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
The present invention efficiently predicts a physical property value of a resin composition with good accuracy by using an appropriate explanatory variable. In order to solve this problem, a machine-learning method comprises: selecting an explanatory variable to be used for machine learning from training data that includes explanatory variables, which indicate at least one among information about raw materials of a resin composition, a blending amount of the raw materials, a manufacturing condition, and a physical property measurement condition, and that includes objective variables which indicate the physical property of the resin composition corresponding to the explanatory variables; and constructing, from the training data, a learning model by using the selected explanatory variable and an objective variable corresponding to the explanatory variable.
A method for analyzing an orientation state of a filler in a resin molded product, the method having a slice image acquisition step of acquiring a slice image in a predetermined direction regarding at least a part of a resin molded product obtained by molding a resin composition containing a filler in a predetermined proportion, a power spectrum image acquisition step of selecting, from the slice image, one or more slice images and performing Fourier transform on the selected slice images, thereby acquiring a power spectrum image, and an orientation state analysis step of analyzing and digitalizing an orientation state of the filler in each power spectrum image based on the power spectrum image.
Provided are a resin composition excellent in heat shock resistance, and a molded article using the same. Provided is a resin composition containing (A) a polybutylene terephthalate resin, (B) a carbodiimide compound, (C) an elastomer, and (D) a fibrous inorganic filler, wherein the carbodiimide compound (B) contains (b1) a cyclic carbodiimide compound and (b2) an aromatic carbodiimide compound, the total content of the cyclic carbodiimide compound (b1) and the aromatic carbodiimide compound (b2) is 0.6 to 2.0 parts by mass relative to 100 parts by mass of the polybutylene terephthalate resin (A), and the mass ratio [(b1)/(b2)] of the cyclic carbodiimide compound (b1) to the aromatic carbodiimide compound (b2) is 0.2 to 1.6.
Provided are: a liquid crystalline resin composition that has excellent fluidity, excellent dielectric characteristics, excellent strength, and excellent dispersibility; and a molded article using the liquid crystalline resin composition. The liquid crystalline resin composition comprises (A) a liquid crystalline resin, (B) glass fibers, and (C) a hollow filler. The content of the glass fibers (B) is 7-23 mass% and the content of the hollow filler (C) is 2-13 mass% with respect to 100 mass% of the whole amount of the liquid crystalline resin composition. The relative permittivity of a glass constituting the glass fibers (B) at a measurement frequency of 1 GHz is 6 or less. The particle diameter (D50) of the hollow filler (C) is more than 20 μm but not more than 55 μm, the particle diameter (D90) of the hollow filler (C) is not more than 60 μm, the compressive strength of the hollow filler (C) is 85-200 MPa, and the shear adhesive force C of the hollow filler (C) as measured in accordance with JIS Z 8835 is not less than 0.1 kPa but less than 0.5 kPa.
C08L 101/12 - Compositions contenant des composés macromoléculaires non spécifiés caractérisées par des propriétés physiques, p. ex. anisotropie, viscosité ou conductivité électrique
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Unprocessed plastics; Artificial resins, unprocessed; Unprocessed plastics for industrial use; Unprocessed plastics in primary form; Chemicals used in industry; Synthetic resins, unprocessed; Thermoplastic resins, unprocessed; Polymer resins, unprocessed; Unprocessed plastic in the form of powder or granules; Unprocessed artificial resins for industrial purposes; Unprocessed synthetic resins for use in the manufacture of plastic molding compounds Semi-processed plastics; Semi-processed synthetic resins; Artificial resins, semi-processed; Semi-processed polymers in pellet form; Semi-processed thermoplastics in pellet form; Recycled plastic in the form of pellet, powder, flake or grain for use in further manufacturing for use in further manufacturing; Recycled plastics in extruded form for use in further manufacturing; Recycled thermoplastic compounds in pellet form for use in further manufacture; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets Recycling of plastic; Processing of plastics; Recycling of waste; Providing information relating to material treatment; Sorting of waste and recyclable material; Upcycling in the nature of waste recycling; Waste processing; Recycling of waste materials; Recycling of chemicals Biological research; Providing scientific information, advice and consultancy relating to carbon offsetting; Providing scientific information, advice and consultancy relating to net zero emissions; Scientific research in the field of environmental protection
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Unprocessed plastics; Artificial resins, unprocessed; Unprocessed plastics for industrial use; Unprocessed plastics in primary form; Chemicals used in industry; Synthetic resins, unprocessed; Thermoplastic resins, unprocessed; Polymer resins, unprocessed; Unprocessed plastic in the form of powder or granules; Unprocessed artificial resins for industrial purposes; Unprocessed synthetic resins for use in the manufacture of plastic molding compounds Semi-processed plastics; Semi-processed synthetic resins; Artificial resins, semi-processed; Semi-processed polymers in pellet form; Semi-processed thermoplastics in pellet form; Recycled plastic in the form of pellet, powder, flake or grain for use in further manufacturing for use in further manufacturing; Recycled plastics in extruded form for use in further manufacturing; Recycled thermoplastic compounds in pellet form for use in further manufacture; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets Recycling of plastic; Processing of plastics; Recycling of waste; Providing information relating to material treatment; Sorting of waste and recyclable material; Upcycling in the nature of waste recycling; Waste processing; Recycling of waste materials; Recycling of chemicals Biological research; Providing scientific information, advice and consultancy relating to carbon offsetting; Providing scientific information, advice and consultancy relating to net zero emissions; Scientific research in the field of environmental protection
19.
METHOD FOR QUANTIFYING EVALUATION INDEX OF ENGRAVED MARK FORMED ON OBJECT BY LASER MARKING, METHOD FOR EVALUATING ENGRAVED MARK FORMED ON OBJECT BY LASER MARKING, AND METHOD FOR PREDICTING OPTIMUM LASER IRRADIATION CONDITION FOR FORMING ENGRAVED MARK ON OBJECT BY LASER MARKING
Provided is a method with which an evaluation index of an engraved mark formed on an object by laser marking can be quantified. According to one embodiment of the present invention, provided is a method for quantifying an evaluation index of an engraved mark formed on an object by laser marking, the evaluation index including at least contrast, color unevenness, hue, and engraved mark density. The method comprises: a step of calculating, as the contrast, the absolute value of the difference between the most frequent value of a laser irradiation region and the most frequent value of a laser non-irradiation region; a step of calculating, as the color unevenness, a standard deviation of the laser irradiation region; a step of calculating, as the hue, a ratio of the most frequent value of the laser irradiation region for each the colors of red, green and blue to the sum of the most frequent values of the laser irradiation region for the respective colors; and a step of calculating, as the engraved mark density, the ratio of the area of a laser marking good region to the total area of the laser marking good region and a laser marking defective region in the laser irradiation region.
B23K 26/00 - Travail par rayon laser, p. ex. soudage, découpage ou perçage
G06K 19/06 - Supports d'enregistrement pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques caractérisés par le genre de marque numérique, p. ex. forme, nature, code
Provided are: a poly(arylene sulfide) resin composition capable of attaining both high tracking resistance and excellent strength; and a molded article of the poly(arylene sulfide) resin composition. The poly(arylene sulfide) resin composition comprises (A) a poly(arylene sulfide) resin, (B) talc, and (C) a fibrous inorganic filler, wherein the talc (B) has an average particle diameter of 10-25 μm, the content of the talc (B) is 60-235 parts by mass per 100 parts by mass of the poly(arylene sulfide) resin (A), the content of the fibrous inorganic filler (C) is 15-190 parts by mass per 100 parts by mass of the poly(arylene sulfide) resin (A), and the total content of the talc (B) and the fibrous inorganic filler (C) is 75-350 parts by mass per 100 parts by mass of the poly(arylene sulfide) resin (A).
Provided is a cyclic olefin copolymer production method with which it is possible to efficiently produce a cyclic olefin copolymer that has excellent toughness and comprises a cyclic olefin monomer and a C3-20 α-olefin monomer. This copolymer comprising a cyclic olefin monomer and a C3-20 α-olefin monomer is produced by means of a method comprising: a first polymerization in which monomers including the cyclic olefin monomer and the α-olefin monomer are polymerized in a polymerization vessel in the presence of a titanocene catalyst, an alkylaluminum compound, and a borate compound; an addition of the monomers and the alkylaluminum compound into the polymerization vessel after the first polymerization; and a second polymerization in which the monomers are continually polymerized after the addition of the monomers and the alkylaluminum compound.
C08F 232/00 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
C08F 4/6592 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
C08F 210/00 - Copolymères d'hydrocarbures aliphatiques non saturés contenant une seule liaison double carbone-carbone
Provided is a cyclic olefin copolymer production method that can produce, with high efficiency, a cyclic olefin copolymer that is a copolymer of a cyclic olefin monomer and an α-olefin monomer having 3-20 carbon atoms and that has excellent toughness. According to the present invention, a copolymer of a cyclic olefin monomer and an α-olefin monomer having 3-20 carbon atoms is produced using a method comprising: a first polymerization for polymerizing monomers including the cyclic olefin monomer and the α-olefin monomer in a polymerization vessel in the presence of a titanocene catalyst, an alkyl aluminum compound, and a borate compound; addition of an alkyl aluminum compound solely to the polymerization vessel after the first polymerization; and a second polymerization for further adding the monomers into the polymerization vessel after the addition of the alkyl aluminum compound, and continuously polymerizing the monomers.
C08F 232/00 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
C08F 4/6592 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
C08F 210/00 - Copolymères d'hydrocarbures aliphatiques non saturés contenant une seule liaison double carbone-carbone
23.
LIQUID CRYSTALLINE RESIN COMPOSITION AND CONNECTOR USING SAME
Provided are: a liquid crystalline resin composition which has good fluidity and provides a molded article having excellent low warpage and reduced blisters; and a connector using same. A liquid crystalline resin composition according to the present invention contains (A) a wholly aromatic polyester, (B) a plate-like filler, and (C) a fibrous filler, wherein the wholly aromatic polyester (A) contains predetermined amounts of constituent units (I)-(V) as essential constituent components, the weight average fiber length of the fibrous filler (C) is 500 μm or less, and the content of the wholly aromatic polyester (A) is 70-85 mass%, the content of the plate-like filler (B) is 10-25 mass%, the content of the fibrous filler (C) is 1.5-8.5 mass%, and the total content of the plate-like filler (B) and the fibrous filler (C) is 15-30 mass%, with respect to the entirety of the liquid crystalline resin composition. A connector according to the present invention includes a molded article of the liquid crystalline resin composition.
C08L 67/00 - Compositions contenant des polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08G 63/60 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés de la réaction d'un mélange d'acides hydroxycarboxyliques, d'acides polycarboxyliques et de composés polyhydroxylés
C08K 7/00 - Emploi d'ingrédients caractérisés par leur forme
H05K 1/03 - Emploi de matériaux pour réaliser le substrat
24.
LIQUID CRYSTALLINE RESIN COMPOSITION AND FILM USING SAME
The present invention provides: a liquid crystalline resin composition which is capable of providing a film that has excellent dielectric characteristics, film forming properties, and mechanical strength in a well-balanced manner; and a film using the same. A liquid crystalline resin pellet according to the present invention contains (A) a liquid crystalline resin and (B) an amorphous polyarylate. The liquid crystalline resin (A) contains the following constituent units (I) and (II) as essential constituent components, and with respect to all constituent units in the liquid crystalline resin (A), the content of the constituent unit (I) is 60-85 mol% and the content of the constituent unit (II) is 12-40 mol%. With respect to the entire liquid crystalline resin composition, the content of the liquid crystalline resin (A) is 95.5-99.9 mass% and the content of the amorphous polyarylate (B) is 0.1-4.5 mass%.
C08L 67/04 - Polyesters dérivés des acides hydroxycarboxyliques, p. ex. lactones
C08G 63/06 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés des acides hydroxycarboxyliques
C08L 67/03 - Les acides dicarboxyliques et les composés dihydroxylés ayant les groupes hydroxy et carboxyliques liés directement à des cycles aromatiques
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Unprocessed plastics; artificial resins, unprocessed;
unprocessed plastics for industrial use; unprocessed
plastics in primary form; chemicals used in industry;
unprocessed plastic in the form of pellet, powder, flake or
grain; synthetic resins, unprocessed; thermoplastic resins,
unprocessed; unprocessed polymer resins in the form of
pellet; polymer resins, unprocessed; unprocessed artificial
resins for industrial purposes; unprocessed synthetic resins
for use in the manufacture of plastic molding compounds;
recycled unprocessed plastic in the form of pellet, powder,
flake or grain for use in further manufacturing; recycled
unprocessed plastics in extruded form for use in further
manufacturing. Plastic semi-worked products; plastic substances,
semi-processed; semi-processed plastics; semi-processed
synthetic resins; artificial resins, semi-processed;
semi-processed polymers in pellet form; semi-processed
thermoplastics in pellet form; recycled semi-processed
plastic in the form of pellet, powder, flake or grain for
use in further manufacturing; recycled semi-processed
plastics in extruded form for use in further manufacturing;
recycled thermoplastic compounds in pellet form for use in
further manufacture; semi-worked synthetic plastic and
synthetic resins as semi-finished products in form of
pellets, rods, foils, foams, fibers, films and sheets. Recycling of plastic; processing of plastics; recycling of
waste; providing information relating to material treatment;
sorting of waste and recyclable material; upcycling in the
nature of waste recycling; waste transformation; waste
processing; recycling of waste materials; recycling of
chemicals. Scientific research in the field of environmental
protection; providing scientific information, advice and
consultancy relating to carbon offsetting; providing
scientific information, advice and consultancy relating to
net zero emissions; biological research.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Unprocessed plastics; artificial resins, unprocessed;
unprocessed plastics for industrial use; unprocessed
plastics in primary form; chemicals used in industry;
unprocessed plastic in the form of pellet, powder, flake or
grain; synthetic resins, unprocessed; thermoplastic resins,
unprocessed; unprocessed polymer resins in the form of
pellet; polymer resins, unprocessed; unprocessed artificial
resins for industrial purposes; unprocessed synthetic resins
for use in the manufacture of plastic molding compounds;
recycled unprocessed plastic in the form of pellet, powder,
flake or grain for use in further manufacturing; recycled
unprocessed plastics in extruded form for use in further
manufacturing. Plastic semi-worked products; plastic substances,
semi-processed; semi-processed plastics; semi-processed
synthetic resins; artificial resins, semi-processed;
semi-processed polymers in pellet form; semi-processed
thermoplastics in pellet form; recycled semi-processed
plastic in the form of pellet, powder, flake or grain for
use in further manufacturing; recycled semi-processed
plastics in extruded form for use in further manufacturing;
recycled thermoplastic compounds in pellet form for use in
further manufacture; semi-worked synthetic plastic and
synthetic resins as semi-finished products in form of
pellets, rods, foils, foams, fibers, films and sheets. Recycling of plastic; processing of plastics; recycling of
waste; providing information relating to material treatment;
sorting of waste and recyclable material; upcycling in the
nature of waste recycling; waste transformation; waste
processing; recycling of waste materials; recycling of
chemicals. Scientific research in the field of environmental
protection; providing scientific information, advice and
consultancy relating to carbon offsetting; providing
scientific information, advice and consultancy relating to
net zero emissions; biological research.
22-free regenerated cellulose fibers having a monofilament tensile elongation at break measured according to JIS L1015 of 10% or more and a toughness of 35 MPa or more.
C08L 23/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères
C08L 59/00 - Compositions contenant des polyacétalsCompositions contenant des dérivés des polyacétals
C08L 77/00 - Compositions contenant des polyamides obtenus par des réactions créant une liaison amide carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08L 101/00 - Compositions contenant des composés macromoléculaires non spécifiés
B29B 15/08 - Prétraitement de la matière à façonner non couvert par les groupes d'agents de renforcement ou des charges
B29K 105/12 - Présentation, forme ou état de la matière moulée contenant des agents de renforcement, charges ou inserts de longueur réduite, p. ex. filaments coupés, fibres coupées ou crins
28.
METHOD FOR CALCULATING ACTUAL CONTACT RATIO OF THERMOPLASTIC RESIN GEAR, METHOD FOR DERIVING COEFFICIENT OF FRICTION OF THERMOPLASTIC RESIN GEAR, METHOD FOR PREDICTING TOOTH ROOT TEMPERATURE OF THERMOPLASTIC RESIN GEAR, AND METHOD FOR PREDICTING SERVICE LIFE OF THERMOPLASTIC RESIN GEAR
A method for calculating an actual contact ratio of thermoplastic resin gears, including: measuring a temperature distribution of a pair of gears; calculating a temperature distribution of a structural analysis model A identical in geometry to the pair of gears by CAE structural analysis; preparing data on temperature dependency of an elastic modulus a of thermoplastic resin; correcting the elastic modulus a in accordance with a strain rate dependency and correcting the elastic modulus a in accordance with an actual amount of deformation of the gears; using a corrected elastic modulus a′ to calculate a contact stress distribution by the CAE structural analysis; calculating an angular difference between a meshing start point and a meshing end point of the pair of gears based on the contact stress distribution; and calculating the actual contact ratio of the pair of gears from the angular difference.
G01N 3/32 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires
G01N 19/02 - Mesure du coefficient de frottement entre matériaux
29.
METHOD FOR PRODUCING THREE-DIMENSIONAL MODEL, AND THREE-DIMENSIONAL MODEL
(i)(i)(i)(i)(i) measured by a differential scanning calorimeter of 15°C to 105°C inclusive, and a melt flow rate of 0.8 g/10 min to 1,000 g/10 min inclusive as measured at a temperature higher than the melting point by 10°C under a load of 2.16 kg, a second modeling material which is different from the first modeling material in the composition and/or the physical properties by means of a fused deposition modeling method. The first modeling material and the second modeling material contain a thermoplastic resin.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
Provided is a release film that comprises a base material layer and a release layer that is layered on at least one surface of the base material layer, the surface free energy of the release layer being no more than 35 mN/m, and the release layer including a resin that has at least one glass transition temperature in the range of 150°C–350°C as measured by viscoelasticity measurement.
B32B 27/00 - Produits stratifiés composés essentiellement de résine synthétique
B32B 27/32 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyoléfines
B32B 27/36 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyesters
C08F 232/08 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique contenant des cycles condensés
C08J 7/043 - Amélioration de l'adhésivité des revêtements en soi, p. ex. par formation d'apprêts
H01M 8/10 - Éléments à combustible avec électrolytes solides
H01M 8/1004 - Éléments à combustible avec électrolytes solides caractérisés par les ensembles membrane-électrodes [MEA]
H01M 8/1067 - Matériaux d’électrolyte polymère caractérisés par leurs propriétés physiques, p. ex. la porosité, la conductivité ionique ou l’épaisseur
Provided is a method for producing a film that contains a liquid-crystalline resin and that has a small anisotropy. A method for producing a film, the method comprising forming a film by layering m sets of n layer units each including x layers formed in the same print direction (x represents an integer of 1-3, n represents an integer of 3 or more, m represents an integer of 1 or more, x may be the same or different in each of the layer units, and n may be the same or different in each of the sets) by a filament-melting method using a filament containing a thermoplastic resin, wherein the thermoplastic resin contains 55-100 mass% of a liquid-crystalline resin with respect to the entirety of the thermoplastic resin, and the layer units forming any one of the sets each have a print direction that is different by at least 180/n (±10)° or more from the print direction of any one of the other layer units.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
32.
METHOD FOR MANUFACTURING 3D PRINTED ARTICLE BY MEANS OF FUSED FILAMENT FABRICATION, AND FILAMENT FOR METHOD FOR MANUFACTURING 3D PRINTED ARTICLE BY MEANS OF FUSED FILAMENT FABRICATION
The present invention provides a method for manufacturing a 3D printed article, whereby a 3D printed article having higher rigidity and a smaller variation in mechanical properties can be manufactured. Provided is a method for manufacturing a 3D printed article by means of fused filament fabrication using a filament containing a thermoplastic resin, wherein: the thermoplastic resin contains 55 to 100 mass% of a liquid crystalline resin in the thermoplastic resin as a whole; the difference (Tm2 - Tc) between the melting point Tm2 of the filament measured by differential scanning calorimetry and the crystallization temperature Tc is 25°C to 60°C; and the printing speed, which is the relative movement speed between a stage and a nozzle part of a 3D printing device, is controlled to be faster than 35 mm/sec and slower than 1000 mm/sec.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
Provided are: a three-dimensional shaped article having a controlled molecular orientation; and a method for manufacturing same. The three-dimensional shaped article contains a thermoplastic resin, wherein the thermoplastic resin contains 55-100 mass% of a liquid crystalline resin in the entirety of the thermoplastic resin. The three-dimensional shaped article is used in an environment where an electric field and/or heat is applied. The thermoplastic resin is molecularly oriented in at least a portion of the three-dimensional shaped article. At least one of the directions of the molecular orientation is a direction of an electric field applied to the three-dimensional shaped article and/or a direction in which heat applied to the three-dimensional shaped article is dissipated.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
This underwater sliding member is obtained by molding a resin composition which contains a thermoplastic resin that has water absorption resistance, and a granular inorganic filler and/or a plate-shaped inorganic filler, wherein the Mohs hardness of the inorganic filler is 5 or less.
Provided is a new method for producing liquid crystalline resin microparticles. A method for producing liquid crystalline resin microparticles according to the present invention includes subjecting a raw material compound containing one or more selected from the group consisting of aromatic hydroxycarboxylic acids and polymerizable derivatives thereof to a polycondensation reaction in an organic solvent in the presence of a vinylpyrrolidone copolymer. The blending amount of the raw material compound is 0.5-40 mass% of the total amount (100 mass%) of the raw material compound, the organic solvent, and the vinylpyrrolidone copolymer.
C08G 63/81 - Procédés de préparation utilisant des solvants
C08G 63/06 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés des acides hydroxycarboxyliques
The purpose of the present invention is to provide a method for producing a polyacetal resin composition that is excellent in terms of rigidity and creep resistance characteristics. A method for producing a polyacetal resin composition according to the present invention includes: a step (I) for producing a polyacetal copolymer (A) by copolymerizing trioxane (a), a cyclic acetal compound (b), and an aliphatic glycidyl ether compound (c) that has a chlorine content of 4% or more in the presence of a linear formal compound (d); a step (II) for producing a linear polyacetal resin (B) by copolymerizing trioxane (a') and a cyclic acetal compound (b'); and a step (III) for mixing and melt-kneading the linear polyacetal resin (B) and the polyacetal copolymer (A).
488 alpha olefin comonomers. The present invention is, furthermore, directed to a film comprising the polypropylene composition. Apart from that, a biaxially oriented film comprising the polypropylene composition and a capacitor are provided.
Provided is a poly(arylene sulfide) resin composition which, during recycling, can be inhibited from forming burrs. The poly(arylene sulfide) resin composition (X) for recycle materials comprises (A) 100 parts by mass of a linear poly(arylene sulfide) resin having a carboxy group and (B) 0.3-10 parts by mass of an alkoxysilane compound.
B29C 45/00 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet
C08K 3/013 - Charges, pigments ou agents de renforcement
C08K 5/5415 - Composés contenant du silicium contenant de l'oxygène contenant au moins une liaison Si—O
C08L 67/00 - Compositions contenant des polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08G 63/60 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés de la réaction d'un mélange d'acides hydroxycarboxyliques, d'acides polycarboxyliques et de composés polyhydroxylés
C08K 7/24 - Particules expansibles, poreuses ou creuses inorganiques
C08L 67/00 - Compositions contenant des polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08G 63/60 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés de la réaction d'un mélange d'acides hydroxycarboxyliques, d'acides polycarboxyliques et de composés polyhydroxylés
Provided are a poly(arylene sulfide) resin composition for plate-shaped electroconductive members which has excellent high- and low-temperature impact resistance, an electroconductive member, and a production method therefor. The poly(arylene sulfide) resin composition for plate-shaped electroconductive members comprises (A) a poly(arylene sulfide) resin, (B) a fibrous inorganic filler, and (C) an alkoxysilane compound, wherein the poly(arylene sulfide) resin (A) has a crystallization temperature (Tc) during cooling of 215°C or higher, the fibrous inorganic filler (B) includes a fibrous inorganic filler (b1) having an aspect ratio of 3.0 or higher, the content of the fibrous inorganic filler (b1) is 50-100 mass% in the fibrous inorganic filler (B), and the content of the fibrous inorganic filler (B) and the content of the alkoxysilane compound (C) are 55-250 parts by mass and 0.3-10 parts by mass, respectively, per 100 parts by mass of the poly(arylene sulfide) resin (A).
B32B 27/00 - Produits stratifiés composés essentiellement de résine synthétique
B32B 27/20 - Produits stratifiés composés essentiellement de résine synthétique caractérisée par l'emploi d'additifs particuliers utilisant des charges, des pigments, des agents thixotropiques
C08K 13/04 - Ingrédients caractérisés par leur forme et ingrédients organiques ou inorganiques
H01B 3/30 - Isolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matières plastiquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques résinesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires
H01B 7/00 - Conducteurs ou câbles isolés caractérisés par la forme
42.
POLYESTER RESIN COMPOSITION, MOLDED ARTICLE, AND PRODUCTION METHOD THEREFOR
Provided are a resin composition and a molded article which are less apt to generate isocyanate gas and which contain few foreign particles and hence have better surface appearance. The resin composition comprises a polyester resin (A) and one or more carbodiimide compounds, wherein the carbodiimide compounds include a carbodiimide compound (B) represented by general formula (1). When the surface of a molded article comprising the resin composition is examined with an optical microscope, the number of observed foreign particles each having an area of 100 μm2or larger is less than 10 per 100 cm2.
The present invention provides: a composite molded article which is capable of securing sufficient airtightness not only at the initial stage but also after a heat shock test; and a resin composition which enables the achievement of such a composite molded article. According to one embodiment of the present invention, there is provided a composite molded article 10 which includes: a member 20; and a resin molded article 30 that is joined to the member 20. The member 20 has a surface roughened part 21, which has a recessed part 21A, in at least a part of a surface 20A of the member 20. The resin molded article 30 includes: a resin 31 that enters at least the recessed part 21A; and a stretched elastomer 32 that is present in the resin 31 and has an aspect ratio, which is the ratio of the major axis to the minor axis, of 1.5 or more in a cross section when the composite molded article 10 is cut in the thickness direction of the resin molded article 30. At least a part of the stretched elastomer 32 is located in the recessed part 21A in the cross section, and is present along the interface IF of the member 20 and the resin molded article 30 in a recessed part interface region R that extends along the interface IF.
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B29C 65/70 - Assemblage d'éléments préformésAppareils à cet effet par moulage
C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés
C08L 101/00 - Compositions contenant des composés macromoléculaires non spécifiés
Disclosed are biaxially stretched polyolefin films containing 10 to 45% by weight of a cycloolefin polymer with a glass transition temperature between 12° and 170° C., and 90 to 55% by weight of a semi-crystalline alpha-olefin polymer with a crystallite melting temperature between 15° and 170° C. The glass transition temperature of the cycloolefin polymer is less than or equal to the crystallite melting temperature of the alpha-olefin polymer, and the polyolefin film has a shrinkage at 130° C. after 5 minutes, as measured according to ISO 11501, of less than or equal to 2%. These polyolefin films are excellently suited as dielectrics for capacitors and are distinguished by a low shrinkage at high temperatures. The cycloolefin polymer preferably forms a co-continuous phase in a matrix of the semi-crystalline alpha-olefin polymer, providing improved mechanical and electrical properties including a dielectric strength from 500 to 750 V/μm.
C08F 232/08 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique contenant des cycles condensés
Disclosed is a polybutylene terephthalate resin composition comprising: a polybutylene terephthalate resin (A); glass fibers (B) which have been surface-treated with a sizing agent containing an epoxy resin and a polymer that includes a structural unit derived from a carboxylic acid anhydride and/or a carboxylic acid; an elastomer (C); and an epoxidized natural oil (D), wherein the content of the epoxidized natural oil is 2.0-8.0 parts by mass with respect to 100 parts by mass of the polybutylene terephthalate resin (A).
C08K 9/04 - Ingrédients traités par des substances organiques
C08L 23/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
47.
POLYESTER RESIN COMPOSITION AND RESIN MOLDED ARTICLE
Disclosed is a polyester resin composition that contains a polybutylene terephthalate resin (A) and a polyethylene terephthalate resin (B). The amount of terminal hydroxyl groups in the polybutylene terephthalate resin (A) is 30-70 mmol/kg with respect to the total amount of the polybutylene terephthalate resin (A) and the polyethylene terephthalate resin (B).
C08L 67/03 - Les acides dicarboxyliques et les composés dihydroxylés ayant les groupes hydroxy et carboxyliques liés directement à des cycles aromatiques
C08K 3/013 - Charges, pigments ou agents de renforcement
Provided are: a recycled polyarylene sulfide resin composition adhering little dirt to a metal mold during molding; and a method for producing the same. This method for producing a recycled polyarylene sulfide resin composition (Z) comprises: a preparation step for preparing a pulverized product (X) of an article containing 100 parts by mass of a polyarylene sulfide resin (P) and 1-20 parts by mass of an elastomer (Q); and a melt-kneading step for melt-kneading the pulverized product (X) and an antioxidant (Y), the blended amount of the antioxidant (Y) being 0.025-0.25 parts by mass per 1 part by mass of the elastomer (Q) contained in the pulverized product (X).
To provide a coated recycled material having little mold contamination during molding, and to provide a method for producing the same. Provided is a method for producing a coated recycled material (Z) that includes: the preparation of a recycled material (z1) for articles that contains 100 mass parts of a polyarylene sulfide resin (P) and 1-20 mass parts of an elastomer (Q); and the coating of at least part of the surface of the recycled material (z1) by an antioxidant (A). The amount of antioxidant (A) applied during coating is 0.025-0.25 mass parts per mass part of the elastomer (Q) contained in the recycled material (z1).
A polyacetal resin composition according to the present invention contains 100 parts by mass of an (A) polyacetal resin, 1-100 parts by mass of (B) glass fibers, 0.001-2 parts by mass of a (C) bonding catalyst, and 0.002-10 parts by mass of a (D) triazine derivative having a nitrogen-containing functional group. The (B) glass fibers are surface-treated with a surface treatment agent including a boric acid compound and at least one selected from blocked isocyanate compounds, aminosilane coupling agents, epoxy resins, and polyurethane resins. The (C) bonding catalyst is at least one selected from onium salts, and organic metal compounds having a metal element selected from zinc (Zn), tin (Sb), and lead (Pb).
The present invention addresses the problem of providing a method for producing a cyclic olefin copolymer, capable of suppressing generation of polyethylene-like impurities. The present invention provides a method for producing a cyclic olefin copolymer, the production method involving addition polymerization of a norbornene monomer and ethylene, wherein the addition polymerization is performed under prescribed conditions in the presence of a borate compound, alkylaluminium, and a catalyst.
C08F 232/04 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant une seule double liaison carbone-carbone
C08F 4/6592 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
A polyacetal resin composition according to the present invention contains 100 parts by mass of an (A) polyacetal resin, 1-100 parts by mass of (B) glass fibers, and 0.002-10 parts by mass of a (C) triazine derivative having a nitrogen-containing functional group. The (B) glass fibers are surface-treated with a surface treatment agent including a boric acid compound and at least one selected from blocked isocyanate compounds, aminosilane coupling agents, epoxy resins, and polyurethane resins.
A polyarylene sulfide resin composition that is suitable for laser welding, and a method for producing the same are provided. A method for improving the laser beam transmittance of a molded body containing a polyarylene sulfide resin is also provided. The resin composition for laser welding contains: 100 parts by mass of a polyarylene sulfide resin; and at least 0.03 parts by mass and at most 1.05 parts by mass of a laser beam transmittance improving agent including at least one material selected from the group consisting of potassium hydroxide, sodium hydroxide, sodium acetate, calcium hydroxide, potassium acetate, lithium hydroxide, lithium acetate, zinc hydroxide, zinc acetate, magnesium hydroxide, zinc oxide, zinc carbonate, and zinc carbonate basic.
B29K 81/00 - Utilisation de polymères contenant dans la chaîne principale uniquement du soufre avec ou sans azote, oxygène ou carbone comme matière de moulage
B29K 505/00 - Utilisation de métaux, leurs alliages ou leurs composés comme matière de remplissage
The present invention relates to a composition comprising 70 to 95 wt.-% of a high isotactic homopolymer of propylene, more than 2.5 to less than 30 wt.-% of a cyclic olefin polymer composition, and 0.1 to 2.5 wt.-% of a random propylene copolymer compatibilizer. The present invention is, furthermore, directed to a film comprising the polypropylene composition. Apart from that, a biaxially oriented film comprising the polypropylene composition and a capacitor are provided.
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
Provided is a low gloss poly(butylene terephthalate) resin composition which exhibits excellent jet-blackness and has little gloss unevenness. A poly(butylene terephthalate) resin composition according to the present invention contains: (A) a poly(butylene terephthalate) resin; (B) a polycarbonate resin; (C) glass flakes; and (D) carbon black. The poly(butylene terephthalate) resin (A) includes (a1) a modified poly(butylene terephthalate) resin containing 5-30 mol% of a comonomer unit. The glass flakes (C) have an average thickness of 1 µm or less and a median diameter of 5-70 μm. Relative to 100 parts by mass of the poly(butylene terephthalate) resin (A), the content of the polycarbonate resin (B) is 60-100 parts by mass, the content of the glass flakes (C) is 60-100 parts by mass, and the content of the carbon black (D) is 0.8-15 parts by mass.
Provided are a liquid crystalline resin composition which has good fluidity, and from which a molded body that is excellent in terms of low-dust generation properties, low slide wear properties, low warping properties, and suppression of inward collapse deformation in a well-balanced manner is obtained, and a camera module using the same. A liquid crystalline resin composition according to the present invention contains (A) a liquid crystalline resin, (B) a granular filler, (C) a plate-shaped filler, and (D) an olefin-based polymer, wherein: the median diameter of the component (B) is 0.3 µm to 8 µm; the median diameter of the component (C) is 10 μm to 50 μm; the component (D) includes an epoxy group-containing olefin-based polymer; and with respect to the entire liquid crystalline resin composition, the content of the component (A) is 52% by mass to 82% by mass, the content of the component (B) is 2.5% by mass to 35% by mass, the content of the component (C) is 5% by mass to 35% by mass, the total content of the component (B) and the component (C) is 15% by mass to 45% by mass, the content of the component (D) is 1.50% by mass to 6.00% by mass, and the content of the epoxy group is 0.003% by mass to 0.050% by mass.
C08L 101/12 - Compositions contenant des composés macromoléculaires non spécifiés caractérisées par des propriétés physiques, p. ex. anisotropie, viscosité ou conductivité électrique
C08K 3/30 - Composés contenant du soufre, du sélénium ou du tellure
G03B 30/00 - Modules photographiques comprenant des objectifs et des unités d'imagerie intégrés, spécialement adaptés pour être intégrés dans d'autres dispositifs, p. ex. des téléphones mobiles ou des véhicules
57.
LIQUID CRYSTALLINE RESIN AND LIQUID CRYSTALLINE RESIN COMPOSITION
C08G 63/60 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés de la réaction d'un mélange d'acides hydroxycarboxyliques, d'acides polycarboxyliques et de composés polyhydroxylés
58.
LIQUID CRYSTALLINE RESIN COMPOSITION AND CAMERA MODULE USING SAME
The present invention provides: a liquid crystalline resin composition which gives a molded article that is excellent in terms of resistance to depression, low warpage, and low dust generation during sliding in a balanced manner; and a camera module which uses the same. A liquid crystalline resin composition according to the present invention contains (A) a liquid crystalline resin, (B) a plate-like filler, and (C) an epoxy group-containing olefin polymer. The average particle diameter of the component (B) is 1-12 μm. Relative to the entire liquid crystalline resin composition, the content of the component (A) is 75-94% by mass, the content of the component (B) is 5-20% by mass, and the content of the component (C) is 1-6% by mass.
C08L 101/12 - Compositions contenant des composés macromoléculaires non spécifiés caractérisées par des propriétés physiques, p. ex. anisotropie, viscosité ou conductivité électrique
C08K 3/013 - Charges, pigments ou agents de renforcement
C08L 23/26 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères modifiées par post-traitement chimique
C08L 67/03 - Les acides dicarboxyliques et les composés dihydroxylés ayant les groupes hydroxy et carboxyliques liés directement à des cycles aromatiques
The problems addressed by the present invention are to provide a cyclic olefin copolymer having a plurality of glass transition temperatures and good toughness, and a method for producing the same. The present invention provides a cyclic olefin copolymer which is an addition-type polymer of a norbornene monomer and a C3-20 alpha-olefin, wherein the ratio of the number of mol of structural units derived from the alpha-olefin to the number of mol of all structural units in the cyclic olefin copolymer is 10-90 mol%, the number average molecular weight of the cyclic olefin copolymer is from more than 20,000 to 500,000, and the cyclic olefin copolymer has two or more glass transition temperatures by viscoelasticity measurement within the range of 0-350° C.
C08F 232/00 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
C08F 4/6592 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
60.
POLYETHER KETONE RESIN COMPOSITION AND MOLDED ARTICLE
Provided are: a polyether ketone resin composition containing (A) 50-90 mass% of a polyether ketone resin, (B) 5-40 mass% of a carbon fiber, (C) 1-20 mass% of graphite, and (D) 1-20 mass% of boron nitride; and a molded article obtained by molding the polyether ketone resin composition. The boron nitride (D) preferably has a median diameter (D50) of 10 μm or less and a specific surface area of 20 m2/g or more.
A resin composition suitable for manufacturing a laser light transmission-side molded article; and a laser light transmission-side molded article are disclosed. A method for improving the laser light transmission properties of a resin composition molded article is also disclosed. The resin composition includes: 100 parts by mass of a polyalkylene terephthalate resin (A); 10-100 parts by mass of a polycarbonate resin (B); 0.1-3 parts by mass of a carbodiimide compound (C); 0-100 parts by mass of an inorganic filler (D); and an inorganic phosphorus compound (E). The method includes blending 0.1-3 parts by mass of a carbodiimide compound (C) in a resin composition including 100 parts by mass of a polyalkylene terephthalate resin (A), 10-100 parts by mass of a polycarbonate resin (B), 0-100 parts by mass of an inorganic filler (D), and an inorganic phosphorus compound (E).
Provided are: a polyether ether ketone resin composition containing (A) 40-80 mass% polyether ether ketone resin, (B) 5-30 mass% carbon fibers, (C) 5-25 mass% graphite, and (D) 5-25 mass% polytetrafluoroethylene; and a molded article formed by molding the polyether ether ketone resin composition. The (D) polytetrafluoroethylene preferably exhibits a weight loss rate of 0.5 mass% or less when heated from 30°C to 400°C at a temperature increase rate of 10°C/min in the presence of an airflow.
Provided is a fully aromatic ether ketone resin composition including: (A) a fully aromatic ether ketone resin; and (B) a phosphorus stabilizer, in which (B) the phosphorus stabilizer contains (B1) a dihydrogen phosphate and (B2) a hydrogen phosphate, (B1) the dihydrogen phosphate is one or more dihydrogen phosphates of alkali metals or one or more dihydrogen phosphates of alkaline earth metals and the like, (B2) the hydrogen phosphate is one or more hydrogen phosphates of alkali metals or one or more hydrogen phosphates of alkaline earth metals and the like, (B1) the dihydrogen phosphate and (B2) the hydrogen phosphate are contained in a predetermined combination, and a total amount of (B) the phosphorus stabilizer is 100 to 5000 mass ppm.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Unprocessed plastics; artificial resins, unprocessed;
unprocessed plastics for industrial use; unprocessed
plastics in primary form; chemicals used in industry;
unprocessed plastic in the form of pellet, powder, flake or
grain; synthetic resins, unprocessed; thermoplastic resins,
unprocessed; polymer resins, unprocessed; unprocessed
artificial resins for industrial purposes; unprocessed
synthetic resins for use in the manufacture of plastic
molding compounds. Plastic semi-worked products; plastic substances,
semi-processed; semi-processed plastics; semi-processed
synthetic resins; artificial resins, semi-processed;
semi-processed polymers in pellet form; semi-processed
thermoplastics in pellet form; semi-worked synthetic plastic
and synthetic resins as semi-finished products in form of
pellets, rods, foils, foams, fibers, films and sheets.
65.
METHOD FOR SUPPRESSING GENERATION OF BURRS DURING INJECTION MOLDING OF POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITION
A method for suppressing burrs generated during injection molding of a polybutylene terephthalate resin composition, the method including adding a cyclic carbodiimide compound (B) to a polybutylene terephthalate resin (A).
Provided are: a cyclic olefin copolymer that comprises a structural unit derived from a norbornene monomer, and a structural unit derived from an olefin selected from ethylene and α-olefin, and that exhibits excellent water vapor barrier properties; a resin composition that comprises the cyclic olefin copolymer; and a molded article that is formed of the cyclic olefin copolymer or the resin composition. This cyclic olefin copolymer comprises: structural units N derived from a norbornene monomer; and structural units O derived from an olefin selected from ethylene and α-olefin. The amount of the structural units N forming a diad formed through binding of two of the structural units N together and the amount of the structural units N forming a triad formed through binding of three of the structural units N are small within a predetermined range. The ratio Mm/Mr of the mol number Mr of racemic diad and the mole number of Mm of meso diad is within a predetermined range.
C08F 232/00 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
The present invention provides a method for producing a cyclic olefin copolymer, the method making it possible to produce a cyclic olefin copolymer that has a low glass transition temperature and contains a structural unit derived from a norbornene monomer and a structural unit derived from an olefin selected from ethylene and α-olefins. A metal-containing catalyst that satisfies specific parameters and has a structure in which one or more ligands are coordinated to a central metal is used when producing a norbornene copolymer by polymerizing monomers including a norbornene monomer and an olefin selected from ethylene and α-olefins while the norbornene monomer is in a molten state.
C08F 232/00 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
C08F 4/6592 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
C08F 210/00 - Copolymères d'hydrocarbures aliphatiques non saturés contenant une seule liaison double carbone-carbone
68.
POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITION, AND MOLDED ARTICLE
This polybutylene terephthalate resin composition contains: a polybutylene terephthalate resin (A) having a terminal carboxyl group content of 25 meq/kg or less; and a cyclic carbodiimide compound (B). The content of a polyvalent hydroxyl group-containing compound (C-1), which is a polyhydric alcohol or a partial ester thereof, having a hydroxyl number of 200 or more is less than 0.05 parts by mass with respect to 100 parts by mass of the polybutylene terephthalate resin (A). The polybutylene terephthalate resin composition satisfies formula 1. In formula 1, a represents the carbodiimide group content (meq/kg) per 1 kg of the polybutylene terephthalate resin composition, and b represents the intrinsic viscosity (dL/g) of the polybutylene terephthalate resin (A). Formula 1: (-15.4×b)+19.3≤a≤(-57.4×b)+59.3
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Unprocessed plastics; artificial resins, unprocessed;
unprocessed plastics for industrial use; unprocessed
plastics in primary form; chemicals used in industry;
unprocessed plastics in the form of pellets, powder, flakes
or granules; synthetic resins, unprocessed; thermoplastic
resins, unprocessed; polymer resins, unprocessed;
unprocessed artificial resins for industrial purposes;
unprocessed synthetic resins for use in the manufacture of
plastic molding compounds. Plastic semi-worked products; plastic substances,
semi-processed; semi-processed plastics; semi-processed
synthetic resins; artificial resins, semi-processed.
70.
POWDER MATERIAL FOR 3D PRINTER, THREE-DIMENSIONAL MODELED ARTICLE, AND METHOD FOR PRODUCING THREE-DIMENSIONAL MODELED ARTICLE
Provided is a powder material for a 3D printer, the powder material exhibiting excellent fluidity and being capable of suppressing the occurrence of flying of the powder material during modeling. Also provided are a three-dimensional modeled article obtained using the powder material for a 3D printer, the three-dimensional modeled article exhibiting excellent appearance and excelling in mechanical characteristics and heat resistance, and a method for producing the three-dimensional modeled article. A powder material (X) for a 3D printer comprises a polyacetal copolymer resin powder (I) and metal oxide particles (II). The content of the particles (II) is 0.01-0.5 mass% with respect to the total mass of the powder material (X).
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et services
Unprocessed artificial resins; Unprocessed synthetic resins; Unprocessed polymer resins; Unprocessed artificial resins for industrial purposes; Thermoplastic resins, unprocessed; Unprocessed plastics; Unprocessed plastics for industrial use; Unprocessed plastics in primary form; Unprocessed plastic in the form of powder or granules; Unprocessed synthetic resins for use in the manufacture of plastic molding compounds
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et services
Unprocessed artificial resins; Unprocessed synthetic resins; Unprocessed polymer resins; Unprocessed artificial resins for industrial purposes; Thermoplastic resins, unprocessed; Unprocessed plastics; Unprocessed plastics for industrial use; Unprocessed plastics in primary form; Unprocessed plastic in the form of powder or granules; Unprocessed synthetic resins for use in the manufacture of plastic molding compounds
73.
POWDERY MATERIAL FOR 3D PRINTER, THREE-DIMENSIONAL SHAPED OBJECT, AND PRODUCTION METHOD THEREFOR
The present invention provides a powdery material for a 3D printer from which a high-density and high-strength three-dimensional shaped object having an excellent appearance can be fabricated, a three-dimensional shaped object obtained by using the same, and a production method therefor. The powdery material (X) for a 3D printer is a powdery material (X) comprising a polyacetal copolymer resin powder (I), wherein a percentage occupied by comonomer units among all constituent units (100 mass %) in the polyacetal copolymer resin is at least 1.0 mass % and at most 6.0 mass %, an average particle diameter of the powder (I) is at least 30 μm and at most 70 μm, and a melt flow rate of the powder (I) measured at a temperature of 190° C. and with a load of 2.16 kg is at least 1.0 g/10 min and at most 8.0 g/10 min.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
B29K 59/00 - Utilisation de polyacétals comme matière de moulage
B29K 71/00 - Utilisation de polyéthers comme matière de moulage
B29K 105/00 - Présentation, forme ou état de la matière moulée
The present invention relates to a composition comprising 83 to 87 wt.% of a polypropylene homopolymer and 13 to 17 wt.% of a cyclic olefin polymer comprising cyclic olefin units, wherein the content of the cyclic olefin units is in a range of from 82 to 86 wt.%, based on the total weight of the cyclic olefin polymer. The present invention is, furthermore, directed to a film comprising the composition, wherein the film may be a cast film or a biaxially oriented film. Apart from that, a capacitor comprising the biaxially oriented film is provided.
The present invention relates to a polypropylene composition comprising a high isotactic homopolymer of propylene in a content from 70 to less than 95 wt.-%, a cyclic olefin polymer composition in a content from 5 to less than 30 wt.-%, and a nucleating agent in a content from 0.0000001 to 1 wt.-%. The present invention is, furthermore, directed to a cast film comprising the polypropylene composition and a biaxially oriented film comprising the polypropylene composition. Apart from that, a capacitor comprising the biaxially oriented film is provided.
Provided is an electromagnetic wave shielding and absorbing molded article which has an excellent shielding property and absorbency of electromagnetic waves of specific frequencies. The electromagnetic wave shielding and absorbing molded article includes a thermoplastic resin composition containing a thermoplastic resin and carbon fibers. The carbon fibers have a weighted average fiber length in the molded article in a range from 0.05 to 8.0 mm, and the content ratio of the carbon fibers in the molded article is from 0.05 to 45 mass %. The electromagnetic wave shielding and absorbing molded article has a thickness from 0.01 mm to 5 mm, a shielding property of 10 dB or greater and an absorbency of 5% or greater for electromagnetic waves having any frequency in a frequency domain from 59 GHz to 100 GHz.
H01Q 17/00 - Dispositifs pour absorber les ondes rayonnées par une antenneCombinaisons de tels dispositifs avec des éléments ou systèmes d'antennes actives
H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
77.
METHOD FOR PRODUCING CONTINUOUS CELLULOSE FIBER HAVING IMPROVED THERMAL STABILITY
The present invention addresses the problem of providing a method for producing a continuous cellulose fiber having improved thermal stability by an industrially feasible method. The present invention is a method for producing a continuous cellulose fiber having improved thermal stability, the method comprising: immersing a continuous cellulose fiber in an aqueous medium containing a compound (A) capable of reacting with a reducing terminal or a hydroxyl group of cellulose; causing the continuous cellulose fiber to absorb the aqueous medium; and then drying the continuous cellulose fiber. The series of steps are successively performed while the continuous cellulose fiber is wound or taken up.
D06B 3/06 - Passage des matières textiles à travers des liquides, gaz ou vapeurs en vue d'effectuer un traitement, p. ex. lavage, teinture, blanchiment, encollage, imprégnation de filés, fils ou filaments manipulés individuellement
D06M 11/82 - Traitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du bore ou ses composés, p. ex. borures avec des oxydes de boreTraitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du bore ou ses composés, p. ex. borures avec des acides boriques, méta- ou perboriques ou leurs sels, p. ex. avec du borax
Provided is a method for producing a polysaccharide-containing article, whereby it becomes possible to produce an article of which the thermal stability is improved uniformly. The method for producing a polysaccharide-containing article having improved thermal stability comprises: causing the article to absorb an aqueous medium containing a compound (A) capable of reacting with a hydroxyl group or a reducing end of the polysaccharide (step (I)); adjusting the content ratio of the aqueous medium to 10 to 1,000 mass% with respect to the whole mass of the article before the absorption of the aqueous medium (step (II)); and drying the article (step (III)).
C08B 15/00 - Préparation d'autres dérivés cellulosiques ou de cellulose modifiée
79.
REGENERATED CELLULOSE FIBER FOR RESIN REINFORCEMENT, METHOD FOR PRODUCING DISCOLORATION-INHIBITED REGENERATED CELLULOSE FIBER, RESIN COMPOSITION, PELLET AND METHOD FOR PRODUCING SAME, AND MOLDED ARTICLE
A first problem is to provide a discoloration-inhibited regenerated cellulose fiber for resin reinforcement. A second problem is to provide, inter alia, a regenerated cellulose fiber-containing resin composition that is resistant to the heat-induced generation of a poor appearance. A third problem is to provide a method for producing a discoloration-inhibited regenerated cellulose fiber. The first problem can be solved by a regenerated cellulose fiber for resin reinforcement, that contains at least one compound (A) selected from weak acids and monohydric and higher hydric alcohols. The second problem can be solved by a resin composition comprising: a regenerated cellulose fiber containing at least one compound (A) selected from weak acids and monohydric and higher hydric alcohols; and a thermoplastic resin or a thermosetting resin. The third problem can be solved by a method for producing a regenerated cellulose fiber, the method comprising heating the aforementioned regenerated cellulose fiber at 200-300°C.
C08J 3/215 - Formation de mélanges de polymères avec des additifs, p. ex. coloration en présence d'une phase liquide le polymère étant prémélangé avec une phase liquide au moins un additif étant également prémélangé avec une phase liquide
C08L 101/00 - Compositions contenant des composés macromoléculaires non spécifiés
D06M 11/82 - Traitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du bore ou ses composés, p. ex. borures avec des oxydes de boreTraitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du bore ou ses composés, p. ex. borures avec des acides boriques, méta- ou perboriques ou leurs sels, p. ex. avec du borax
The present invention pertains to a metal-resin composite molded article in which a metallic member and a polyarylene sulfide-based resin composition member are joined, and in which, in one surface of the metallic member, the arithmetical average curvature of a peak of a surface portion joined to the polyarylene sulfide-based resin composition member is 5000-7000 (1/mm), and the melt viscosity, specified by ISO 11433, of a polyarylene sulfide-based resin composition forming the polyarylene sulfide-based resin composition member is 20-210 Pa·s under a condition of 310°C and 1000 sec-1. The purpose of the present invention is to increase airtightness at a portion at which the metallic member and the polyarylene sulfide-based resin composition member are joined.
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B23K 26/352 - Travail par rayon laser, p. ex. soudage, découpage ou perçage pour le traitement de surface
C08L 23/02 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères non modifiées par un post-traitement chimique
The present invention relates to a composition comprising 70 to 95 wt.-% based on the total weight of the polypropylene composition of a high isotactic homopolymer of propylene, and 5 to 30 wt.-% based on the total weight of the polypropylene composition of a cyclic olefin polymer composition having a glass transition temperature in a range of from 140 to 155 °C, wherein the cyclic olefin polymer composition comprises at least a first cyclic olefin polymer and a second cyclic olefin polymer, wherein the first cyclic olefin polymer has a glass transition temperature of below 140 °C. The present invention is, furthermore, directed to a cast film comprising the polypropylene composition and a biaxially oriented film comprising the polypropylene composition. Apart from that, a capacitor comprising the biaxially oriented film is provided.
A laser transmissive resin composition is disclosed with high laser transmissiveness, good color development, and in which color transfer does not occur and a molded article using the same. The laser transmissive resin composition (I) includes, with respect to 100 parts by mass of a polyester-based resin (A), 0.005-5.0 parts by mass of an organic pigment (B) including at least a benzimidazolone-based yellow pigment (b1), wherein a 1 mm thick molded article of the resin composition (I) has a CIE L* value of 25 or less and a 940 nm laser transmittance of 40% or greater.
B29K 67/00 - Utilisation de polyesters comme matière de moulage
B29K 105/00 - Présentation, forme ou état de la matière moulée
83.
FULLY AROMATIC ETHER KETONE RESIN COMPOSITION, METHOD OF PRODUCING THE SAME, MOLDED ARTICLE, AND METHOD OF ENHANCING RETENTION STABILITY OF MELT VISCOSITY OF THE RESIN COMPOSITION
Provided is a fully aromatic ether ketone resin composition including: (A) a prescribed fully aromatic ether ketone resin; and (B) a salt composed of an acid and a base, in which a pH thereof obtained by performing measurement by means of a pH measurement method below is 6 to 8.
[pH measurement method] (a)
To 10 g of a powder of the fully aromatic ether ketone resin composition, 5 mL of acetone is added, then 100 mL of pure water is added thereto, a mixture is stirred for 10 minutes, and then the mixture is subjected to filtration.
(b) 0.1 mL of pure water is added dropwise to a residue obtained by volatilizing a liquid component of a filtrate obtained.
(c) A temperature is set to 25° C., and the pH is measured by contacting a pH test paper with the pure water added dropwise.
A method for controlling an injection molding machine in which a resin melted in a cylinder is injected into a mold to form an injection-molded article, wherein: during a single injection-molding of a reference article which is an injection-molded article evaluated as being a proper article, a peak pressure in the mold and either a pressure decrease time from the start of injection until the pressure inside the mold becomes zero or an integrated pressure value from the start of injection until the pressure inside the mold becomes zero are acquired in advance; and, during injection molding of an article to be produced, the cylinder temperature is adjusted so that the peak pressure inside the mold becomes equal to the peak pressure in the mold for the reference article, and the temperature inside the mold is adjusted so that the pressure decrease time or the integrated pressure value becomes equal to the pressure decrease time or the integrated pressure value for the reference article.
Provided are: a liquid crystalline resin composition which has excellent fluidity and from which a molded body having an excellent balance of low-dust emitting properties, low slide wear properties, low warping properties, and mechanical strength is obtained; and a camera module using the liquid crystalline resin composition. A liquid crystalline resin composition according to the present invention contains (A) a liquid crystalline resin, (B) a plate-like filler, and (C) an olefin-based polymer. The median diameter of component (B) is 8-50 µm. Component (C) contains an olefin-based polymer including epoxy groups. With respect to the entirety of the liquid crystalline resin composition, the contained amount of component (A) is 54-87 mass%, the contained amount of component (B) is 10-40 mass%, the contained amount of component (C) is 2.75-6.00 mass%, and the contained amount of the epoxy groups is not less than 0.003 mass% but less than 0.048 mass%.
C08L 67/00 - Compositions contenant des polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08K 13/04 - Ingrédients caractérisés par leur forme et ingrédients organiques ou inorganiques
C08L 23/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères
Provided are: a method for improving the releasability of regenerated pellets from a mold; and coated regenerated resin pellets excellent in releasability from a mold. The method is for improving the releasability of regenerated pellets containing a polyarylene sulfide resin, the method including: coating at least a portion of the surfaces of pellets containing a polyarylene sulfide resin with a compound (A) that includes at least one selected from: (A-1) an olefin resin having a melt viscosity of 0.1 to 8.0 Pa·s at 140°C; (A-2) a fatty acid derivative; and (A-3) a silicone-based compound. The total amount of compound (A) coating is 0.04 to 3.0 parts by mass relative to 100 parts by mass of the pellets (Q).
C08J 11/06 - Récupération ou traitement des résidus des polymères sans réaction chimique
C08L 23/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères
This polybutylene terephthalate resin composition comprises (A) a polybutylene terephthalate resin having an intrinsic viscosity of 0.70-1.10 dL/g, inclusive, and a carboxylic acid end group amount of 5-18 meq/kg, inclusive, and (B) glass fibers that have been surface-treated with a sizing agent containing an epoxy resin and a polymer comprising a constituent unit derived from a carboxylic acid and/or a carboxylic anhydride.
Provided is a liquid-crystalline resin composition that has a low dielectric constant, a low dielectric loss tangent, and excellent blackness. This liquid-crystalline resin composition contains (A) a liquid-crystalline resin, (B) a hollow filler, and (C) carbon black. There are 5–85 parts by mass of the (B) hollow filler and 0.1–7 parts by mass of the (C) carbon black per 100 parts by mass of the (A) liquid-crystalline resin, and the number average particle diameter of the (C) carbon black is 20–100 nm. The (A) liquid-crystalline resin is preferably an aromatic polyester or an aromatic polyesteramide that includes, as a constituent component, a constituent unit derived from at least one compound selected from the group that consists of aromatic hydroxycarboxylic acids and derivatives thereof. The (B) hollow filler is preferably glass balloons. The dielectric loss tangent of the liquid-crystalline resin composition at a measurement frequency of 5 GHz is preferably no more than 0.0067.
C08L 101/12 - Compositions contenant des composés macromoléculaires non spécifiés caractérisées par des propriétés physiques, p. ex. anisotropie, viscosité ou conductivité électrique
The present invention provides: a recycled polyarylene sulfide resin composition which exhibits excellent releasability from a mold; and a method for producing this recycled polyarylene sulfide resin composition. This recycled polyarylene sulfide resin composition (Y) contains: 100 parts by mass of a material (X) for recycling, which is a ground product of articles containing a polyarylene sulfide resin; and a total of 0.1 part by mass to 3.0 parts by mass of a compound (A) that contains one or more compounds selected from among (A-1) an olefin resin having a melt viscosity of 0.1 Pa∙s to 8.0 Pa∙s at 140°C, (A-2) a fatty acid derivative and (A-3) a silicone compound.
C08J 3/20 - Formation de mélanges de polymères avec des additifs, p. ex. coloration
C08L 23/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Unprocessed plastics; artificial resins, unprocessed;
unprocessed plastics for industrial use; unprocessed
plastics in primary form; chemicals used in industry;
unprocessed plastic in the form of pellet, powder, flake or
grain; synthetic resins, unprocessed; thermoplastic resins,
unprocessed; polymer resins, unprocessed; unprocessed
artificial resins for industrial purposes; unprocessed
synthetic resins for use in the manufacture of plastic
molding compounds. Plastic semi-worked products; plastic substances,
semi-processed; semi-processed plastics; semi-processed
synthetic resins; artificial resins, semi-processed;
semi-processed polymers in pellet form; semi-processed
thermoplastics in pellet form; recycled plastic in the form
of pellet, powder, flake or grain for use in further
manufacturing; recycled plastics in extruded form for use in
further manufacturing; recycled thermoplastic compounds in
pellet form for use in further manufacture; semi-worked
synthetic plastic and synthetic resins as semi-finished
products in form of pellets, rods, foils, foams, fibers,
films and sheets. Recycling of plastic; processing of plastics; recycling of
waste; providing information relating to material treatment;
sorting of waste and recyclable material; upcycling in the
nature of waste recycling; waste transformation; waste
processing; recycling of waste materials; recycling of
chemicals.
Provided is a method for producing a polyacetal copolymer, the production method comprising: a step for obtaining a crude polyacetal copolymer by copolymerizing trioxane as a main monomer (a) and, as a comonomer (b), a compound that can be copolymerized with trioxane, by using a protonic acid as a polymerization catalyst (c); a step for obtaining a mixture by introducing the crude polyacetal copolymer and a solution of a basic compound (d) into a prescribed continuous mixing device and mixing the contents thereof; and a step for inserting the mixture into an extruder and carrying out melt kneading. The basic compound (d) is a carbonate, a hydrogen carbonate, or the like of an alkali metal element or a Group 2 element (excluding Be), and the solvent in the solution of the basic compound (d) is a solvent having active hydrogen.
Disclosed is a method for producing a polyacetal copolymer, the method comprising: a step for obtaining a crude polyacetal copolymer by copolymerizing trioxane as a main monomer (a) and a compound copolymerizable with trioxane as a comonomer (b) using a protonic acid as a polymerization catalyst (c); a step for obtaining a mixture by mixing the crude polyacetal copolymer and a solution of a basic compound (d); and a step for melt-kneading the mixture by putting the mixture into an extruder, while adding a deactivator (e) of the polymerization catalyst (c) to the mixture. The solution of the basic compound (d) is obtained by dissolving an organic compound that contains nitrogen or phosphorus into an organic solvent that has no active hydrogen.
Provided is a method for producing a copolymer of a cyclic olefin monomer and an α-olefin having 3-20 carbon atoms, the method such that a cyclic olefin copolymer having excellent toughness can be efficiently produced. A copolymer of a cyclic olefin monomer and an α-olefin having 3-20 carbon atoms is produced using a method including: a first polymerization in which monomers including a cyclic olefin monomer and an α-olefin are polymerized in a polymerization vessel in the presence of a titanocene catalyst, an alkyl aluminum compound and a borate compound; addition of an alkyl aluminum compound in isolation to the polymerization vessel following the first polymerization; and following the addition of an alkyl aluminum compound, a second polymerization in which a monomer is added to the polymerization vessel and subsequently polymerized.
C08F 4/6592 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
C08F 232/00 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
The present invention provides a method for producing a cyclic olefin copolymer which makes it possible to efficiently produce a cyclic olefin copolymer that is a copolymer of a cyclic olefin monomer and a C3-20 α-olefin, and that has excellent toughness. A copolymer of a cyclic olefin monomer and a C3-20 α-olefin is produced by a method comprising: a first polymerization in which a cyclic olefin monomer and a monomer including an α-olefin are polymerized in a polymerization container and in the presence of a titanocene catalyst, an alkylaluminum compound, and a borate compound; addition of the monomer and the alkylaluminum compound to the polymerization container after the first polymerization; and a second polymerization in which, after the addition of the monomer and the alkylaluminum compound, polymerization of the monomer is continued.
C08F 4/6592 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
C08F 232/00 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
95.
RESIN COMPOSITION AND METHOD FOR PRODUCING SAME, AND MOLDED ARTICLE
Provided are: a resin composition that can provide molded articles having excellent moist heat resistance and good mechanical properties; a method for producing the resin composition; and molded articles of the resin composition. The resin composition comprises: a polyolefin resin (A) comprising a polypropylene resin (A1) and an acid-modified polypropylene resin (A2) having an acid concentration (in terms of maleic anhydride) (v1) of 0.01-0.5 mol/kg; regenerated cellulose fibers (B); and an epoxy compound (C) having an epoxy group concentration (f1) of 0.1-6.0 mol/kg. Relative to the total mass of the resin composition, the polyolefin resin (A) content is 25-90 mass% and the regenerated cellulose fibers (B) content is 5-70 mass%, and the ratio (R) of the epoxy group concentration to the acid concentration in the resin composition, represented by formula (1), is 0.9 or more.
C08J 5/06 - Renforcement des composés macromoléculaires avec des matériaux fibreux en vrac ou en nappes utilisant des matériaux fibreux prétraités
C08L 1/00 - Compositions contenant de la cellulose, de la cellulose modifiée ou des dérivés de la cellulose
C08L 23/26 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères modifiées par post-traitement chimique
C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
96.
LIQUID CRYSTALLINE RESIN COMPOSITION AND CONNECTOR USING SAME
Provided are a liquid crystalline resin composition with good flowability and mold release properties, having excellent mechanical strength and providing a molded body with suppressed blistering, and a connector using the same. A liquid crystalline resin composition according to the present invention contains (A) a liquid crystalline resin, (B) whiskers, (C) an epoxy group-containing olefinic polymer, and (D) a polyhydric alcohol fatty acid ester, wherein, relative to the total liquid crystalline resin composition, the content of (B) the whiskers is 20-40 mass%, the content of (C) the epoxy group-containing olefinic polymer is 0.5-6 mass%, and the content of (D) the polyhydric alcohol fatty acid ester is 0.1-2.0 mass%. The liquid crystalline resin composition according to the present invention further contains (E) a plate-like filler, and the content of (E) the plate-like filler is 5-15 mass% relative to the total liquid crystalline resin composition. A molded body according to the present invention contains the liquid crystalline resin composition. A connector according to the present invention is formed of the molded body.
C08L 67/00 - Compositions contenant des polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08G 63/60 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés de la réaction d'un mélange d'acides hydroxycarboxyliques, d'acides polycarboxyliques et de composés polyhydroxylés
C08K 5/103 - EstersÉthers-esters d'acides monocarboxyliques avec des polyalcools
This polyacetal copolymer production method comprises: a step in which a trioxane and a comonomer that can be copolymerized with the troxane in the presence of a polymerization catalyst are copolymerized by a polymerization device; and a step in which a crude polyacetal copolymer obtained in the abovementioned step is melted/kneaded by an extruder. The polymerization catalyst is a protonic acid. In the melting/kneading step, a basic compound solution is added after the initiation of melting/kneading and before the completion of melting/kneading.
Provided is an elastic modulus computation method for a resin-molded product having a weld, the elastic modulus computation method comprising: acquiring a relationship between the surface temperature and the shrinkage factor of the resin-molded product having a weld which has been taken out of the mold and is being cooled; acquiring, from a joint plate composed of a primary side plate including a material with a heat expansion coefficient different from that of the resin material of the resin-molded product and a secondary side plate including the same resin material as the resin-molded product and having a weld, measured values of both the surface temperature of the secondary side plate and the warping amount of the joint plate; acquiring a relationship between the surface temperature and the elastic modulus of the secondary side plate on the basis of the measured shrinkage factor of the resin-molded product having the weld, the acquired warping amount of the joint plate, and a CAE analysis that uses an analysis model including a weld and a normal part in the secondary side plate; and acquiring a relationship between the surface temperature and the elastic modulus of the resin-molded product which has been taken out of the mold and is being cooled, on the basis of the relationship between the surface temperature and the elastic modulus of the secondary side plate.
Provided are a liquid crystal resin composition that has good fluidity and yields an excellent molded body having a good balance of low dust generation, low sliding wear, impact resistance, and mechanical strength and a camera module that uses the liquid crystal resin composition. The liquid crystal resin composition according to the present invention contains (A) a liquid crystal resin, (B) a filler, and (C) an olefin polymer. Component (B) contains (B1) a fibrous filler and/or (B2) a nonfibrous filler. Component (B2) is a plate-like filler and/or a granular filler. The weight average fiber length of component (B1) is 5-200 μm, and the median diameter of each of the plate-like filler and granular filler is 50 μm or less. Component (C) contains an epoxy-group-containing olefin polymer. Relative to the entire liquid crystal resin composition, the content of component (A) is 57-87 mass%, the content of component (B) is 10-40 mass%, the content of component (C) is 2.75-6.00 mass%, and the content of the epoxy groups is 0.003 mass% to less than 0.048 mass%.
C08L 101/12 - Compositions contenant des composés macromoléculaires non spécifiés caractérisées par des propriétés physiques, p. ex. anisotropie, viscosité ou conductivité électrique
C08K 3/013 - Charges, pigments ou agents de renforcement
C08K 3/30 - Composés contenant du soufre, du sélénium ou du tellure
In a polyacetal copolymer production method according to the present invention, trioxane and a comonomer that can be copolymerized with trioxane are copolymerized in the presence of a polymerization catalyst. The polymerization catalyst is a heteropolyacid (A) and a heteropolyacid salt (B), and the heteropolyacid (A) and heteropolyacid salt (B) are mixed for use.
