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1
EP3388471B1
POLYARYLENE SULFIDE RESIN GRANULAR ARTICLE AND METHOD FOR PRODUCING SAME
Publication/Patent Number: EP3388471B1 Publication Date: 2020-02-19 Application Number: 17741362.2 Filing Date: 2017-01-17 Inventor: Watanabe, Kei   Takeda, Kazusada   Miyama hisashi   Nishida, Mikiya   Assignee: Toray Industries, Inc.   IPC: C08J3/12
2
US2020354528A1
POLYARYLENE SULFIDE RESIN PARTICULATE AND METHOD OF PRODUCING SAME
Publication/Patent Number: US2020354528A1 Publication Date: 2020-11-12 Application Number: 16/071,108 Filing Date: 2017-01-17 Inventor: Watanabe, Kei   Takeda, Kazusada   Miyama hisashi   Nishida, Mikiya   Assignee: TORAY INDUSTRIES, INC.   IPC: C08J3/12 Abstract: A polyarylene sulfide resin particulate has a mean particle diameter from more than 1 μm to 100 the uniformity is 4 or less, the melt viscosity measured at temperature of 300° C. and shear rate of 1216 sec−1 is 150 to 500 Pa·s, and the recrystallization temperature, defined as temperature of the heat generation peak at the time of crystallization when cooled from 340° C. to 50° C. at 20° C./min using a differential scanning calorimeter, is 150 to 210° C. The polyarylene sulfide resin particulate is suitable as a material powder for producing a three-dimensional molding by a powder sintering three-dimensional printer can be provided efficiently.
3
US2020062892A1
METHOD OF PRODUCING POLYBUTYLENE TEREPHTHALATE RESIN PARTICLES, AND POLYBUTYLENE TEREPHTHALATE RESIN PARTICLES
Publication/Patent Number: US2020062892A1 Publication Date: 2020-02-27 Application Number: 16/344,126 Filing Date: 2017-11-13 Inventor: Asahara, Chizuru   Ito, Koya   Takahashi, Toshiya   Makita, Kei   Miyama hisashi   Assignee: Toray Industries, Inc.   IPC: C08G63/183 Abstract: A method produces polybutylene terephthalate resin particles, which includes (a) a step of heating a polybutylene terephthalate resin in an organic solvent to obtain a solution of a polybutylene terephthalate resin (dissolution step), and (b) a step of flash-cooling the solution to precipitate polybutylene terephthalate resin particles (precipitation step). The method produces PBT resin particles by a simple operation that can be performed industrially.
4
US2020055234A1
POLYARYLENE SULFIDE RESIN POWDER GRANULAR ARTICLE MIXTURE AND METHOD FOR PRODUCING THREE-DIMENSIONAL MOLDED ARTICLE
Publication/Patent Number: US2020055234A1 Publication Date: 2020-02-20 Application Number: 16/343,668 Filing Date: 2017-10-13 Inventor: Watanabe, Kei   Takeda, Kazusada   Miyama hisashi   Nishida, Mikiya   Shibata, Hikaru   Assignee: Toray Industries, Inc.   IPC: B29C64/153 Abstract: A polyarylene sulfide resin powder granular article mixture enabling production of a highly heat-resistant and high-ductility three-dimensional molded article has: 5-25 parts by weight of fluorine resin powder granular article with respect to 100 parts by weight of polyarylene sulfide resin powder granular article; an average particle size of greater than 1 μm to 100 μm or less; an angle of repose of 43 degrees or less; and a homogeneity of 4 or less.
5
US202040204A1
POLYBUTYLENE TEREPHTHALATE RESIN POWDER MIXTURE
Publication/Patent Number: US202040204A1 Publication Date: 2020-02-06 Application Number: 20/191,659 Filing Date: 2019-10-02 Inventor: Takezaki, Hiroshi   Takeda, Kazusada   Watanabe, Kei   Nishida, Mikiya   Nishimura, Yosuke   Miyama hisashi   Assignee: Toray Industries, Inc.   IPC: C09D11/104 Abstract: A method of producing polybutylene terephthalate resin shaped moldings includes supplying a 3D printer with a polybutylene terephthalate resin powder mixture that contains 100 parts by weight of a polybutylene terephthalate resin powder material having a mean diameter of more than 1 μm and 100 μm or less, a uniformity coefficient of 4 or less, and a terminal carboxyl group quantity of 35 eq/t or more and 50 eq/t or less, and 0.1 to 5 parts by weight of inorganic particles having a mean diameter of 20 to 500 nm.
6
EP3315553B1
POLYESTER RESIN POWDER MIXTURE
Publication/Patent Number: EP3315553B1 Publication Date: 2020-09-30 Application Number: 16817553.7 Filing Date: 2016-04-27 Inventor: Watanabe, Kei   Takeda, Kazusada   Nishimura, Yosuke   Takezaki, Hiroshi   Miyama hisashi   Nishida, Mikiya   Assignee: Toray Industries, Inc.   IPC: C08J3/20
7
US2020040204A1
POLYBUTYLENE TEREPHTHALATE RESIN POWDER MIXTURE
Publication/Patent Number: US2020040204A1 Publication Date: 2020-02-06 Application Number: 16/590,826 Filing Date: 2019-10-02 Inventor: Watanabe, Kei   Takeda, Kazusada   Nishimura, Yosuke   Takezaki, Hiroshi   Miyama hisashi   Nishida, Mikiya   Assignee: Toray Industries, Inc.   IPC: C09D11/104 Abstract: A method of producing polybutylene terephthalate resin shaped moldings includes supplying a 3D printer with a polybutylene terephthalate resin powder mixture that contains 100 parts by weight of a polybutylene terephthalate resin powder material having a mean diameter of more than 1 μm and 100 μm or less, a uniformity coefficient of 4 or less, and a terminal carboxyl group quantity of 35 eq/t or more and 50 eq/t or less, and 0.1 to 5 parts by weight of inorganic particles having a mean diameter of 20 to 500 nm.
8
EP3632961A1
BLOCK COPOLYMER, METHOD FOR PRODUCING SAME, EPOXY RESIN COMPOSITION, CURED PRODUCT, AND SEMICONDUCTOR ENCAPSULATING MATERIAL
Publication/Patent Number: EP3632961A1 Publication Date: 2020-04-08 Application Number: 18809216.7 Filing Date: 2018-05-24 Inventor: Tanaka, Hiroko   Isago, Yuka   Asano, Itaru   Takezaki, Hiroshi   Miyama hisashi   Honda, Shiro   Assignee: Toray Industries, Inc.   IPC: C08G81/00 Abstract: A polysiloxane-polyalkylene glycol block copolymer obtained by reacting a polysiloxane (A) having any functional group selected from a carboxylic anhydride group, a hydroxyl group, an epoxy group, a carboxyl group, and an amino group with a polyalkylene glycol (B) having any functional group selected from a carboxylic anhydride group, a hydroxyl group, a carboxyl group, an amino group, an epoxy group, a thiol group, and an isocyanate group, in which the content of a structure derived from the polysiloxane (A) is 20% by mass or more and 90% by mass or less with respect to 100% by mass of the block copolymer. The polysiloxane-polyalkylene glycol block copolymer of the present invention is homogeneously and finely dispersed in an epoxy resin in the case of being blended with the epoxy resin, bleed-out of the block copolymer from the cured epoxy resin to be obtained can be suppressed, and decreased stress and improved toughness of the cured epoxy resin can be achieved. Moreover, a decrease in fluidity caused by the addition of the block copolymer to an epoxy resin is also suppressed. From these facts, this block copolymer is also useful as various additives such as a surfactant and a resin modifier and is particularly suitable as a stress relief agent for semiconductor encapsulating materials.
9
US2020377670A1
BLOCK COPOLYMER AND METHOD OF PRODUCING SAME, EPOXY RESIN COMPOSITION AND CURED PRODUCT THEREOF, AND SEMICONDUCTOR ENCAPSULATING MATERIAL
Publication/Patent Number: US2020377670A1 Publication Date: 2020-12-03 Application Number: 16/606,902 Filing Date: 2018-05-24 Inventor: Tanaka, Hiroko   Isago, Yuka   Asano, Itaru   Takezaki, Hiroshi   Miyama hisashi   Honda, Shiro   Assignee: Toray Industries, Inc.   IPC: C08G81/02 Abstract: A polysiloxane-polyalkylene glycol block copolymer is obtained by reacting a polysiloxane (A) having any functional group selected from a carboxylic anhydride group, a hydroxyl group, an epoxy group, a carboxyl group, and an amino group with a polyalkylene glycol (B) having any functional group selected from a carboxylic anhydride group, a hydroxyl group, a carboxyl group, an amino group, an epoxy group, a thiol group, and an isocyanate group, wherein a content of a structure derived from the polysiloxane (A) is 20% by mass or more and 90% by mass or less with respect to 100% by mass of the polysiloxane-polyalkylene glycol block copolymer.
10
EP3530701A1
POLYARYLENE SULFIDE RESIN POWDER GRANULAR ARTICLE MIXTURE AND METHOD FOR PRODUCING THREE-DIMENSIONAL MOLDED ARTICLE
Publication/Patent Number: EP3530701A1 Publication Date: 2019-08-28 Application Number: 17861706.4 Filing Date: 2017-10-13 Inventor: Watanabe, Kei   Takeda, Kazusada   Miyama hisashi   Nishida, Mikiya   Shibata, Hikaru   Assignee: Toray Industries, Inc.   IPC: C08L81/02 Abstract: The present invention addresses the problem of obtaining a polyarylene sulfide resin powder granular article mixture for 3D printers, the mixture enabling production of a highly heat-resistant and high-ductility three-dimensional molded article. Provided is a polyarylene sulfide resin powder granular article mixture which is characterized by having: 5-25 parts by weight of fluorine resin powder granular article with respect to 100 parts by weight of polyarylene sulfide resin powder granular article; an average particle size of greater than 1 µm to 100 pm or less; an angle of repose of 43 degrees or less; and a homogeneity of 4 or less.
11
EP3546500A1
METHOD FOR PRODUCING POLYBUTYLENE TEREPHTHALATE RESIN PARTICLES, AND POLYBUTYLENE TEREPHTHALATE RESIN PARTICLES
Publication/Patent Number: EP3546500A1 Publication Date: 2019-10-02 Application Number: 17873591.6 Filing Date: 2017-11-13 Inventor: Asahara, Chizuru   Ito, Koya   Takahashi, Toshiya   Makita, Kei   Miyama hisashi   Assignee: Toray Industries, Inc.   IPC: C08J3/12 Abstract: Provided is a method for producing polybutylene terephthalate resin particles, which includes (a) a step of heating a polybutyl terephthalate resin in an organic solvent to obtain a solution of a polybutylene terephthalate resin (dissolution step), and (b) a step of flash-cooling the solution to precipitate polybutylene terephthalate resin particles (precipitation step). The present invention provides a method for producing PBT resin particles by a simple operation that can be performed industrially. The present invention also provides extremely fine PBT resin particles of uniform particle size.
12
WO2019167749A1
PIGMENT-CONTAINING ALIPHATIC POLYESTER FINE PARTICLES, PRODUCTION METHOD THEREFOR, AND COSMETIC ARTICLE
Publication/Patent Number: WO2019167749A1 Publication Date: 2019-09-06 Application Number: 2019006295 Filing Date: 2019-02-20 Inventor: Imazu, Naoki   Miyama hisashi   Isago, Yuka   Takezaki, Hiroshi   Iwata, Hirokazu   Assignee: TORAY INDUSTRIES, INC.   IPC: C09B67/20 Abstract: Provided are novel pigment-containing aliphatic polyester resin fine particles obtained by: forming an emulsion in a system for causing phase separation in a polymer solution obtained by mixing an aliphatic polyester resin (A) selected from the group consisting of aliphatic polyesters obtained from aliphatic hydroxycarboxylic acids, aliphatic polyesters obtained from aliphatic diols and aliphatic dicarboxylic acids and/or ester-forming derivatives thereof, and aliphatic polyesters obtained from lactones, a resin (B) which is different from the aliphatic polyester resin and induces phase separation, a pigment (C), and an organic solvent (D), to obtain two phases, i.e., a solution phase containing the aliphatic polyester resin (A) as a main component and the pigment, and a solution phase containing the resin (B) as a main component; and bringing the emulsion into contact with a poor solvent (E) for the aliphatic polyester resin (A) to cause precipitation of aliphatic polyester resin fine particles containing the pigment (C), wherein the contained amount of the pigment (C) is 1.5-40 mass, and the average particle size is not less than 1 μm but less than 100 μm. The present invention provides novel polymer fine particles that serve as a colorant having high color developability and that improve the handleability such as fluidity and dispersibility of a pigment, and, when used as a cosmetic additive, facilitate removal of a cosmetic, and are less likely to cause color transfer to the skin.
13
TW201902999A
Block copolymer, method for producing same, epoxy resin composition, cured product, and semiconductor encapsulating material
Publication/Patent Number: TW201902999A Publication Date: 2019-01-16 Application Number: 107118100 Filing Date: 2018-05-28 Inventor: Honda, Shiro   Tanaka, Hiroko   Takezaki, Hiroshi   Asano, Itaru   Miyama hisashi   Isago, Yuka   Assignee: Toray Industries, Inc.   IPC: C08G81/00 Abstract: Provided is a polysiloxane-polyalkylene glycol block copolymer which can be obtained by reacting a polysiloxane (A) having a functional group selected from among a carboxylic acid anhydride group, a hydroxyl group, an epoxy group, a carboxyl group, and an amino group, with a polyalkylene glycol (B) having a functional group selected from among a carboxylic acid anhydride group, a hydroxyl group, a carboxyl group, an amino group, an epoxy group, a thiol group, and an isocyanate group, wherein the content of a structure derived from the polysiloxane (A) is 20-90 mass% with respect to 100 mass% of the block copolymer. When added to an epoxy resin, this polysiloxane-polyalkylene glycol block copolymer is homogeneously and finely dispersed in the epoxy resin so that bleed-out of the block copolymer from an epoxy resin cured product that is obtained can be suppressed and the epoxy resin cured product can have reduced stress and increased toughness. Furthermore, a reduction in fluidity is suppressed by adding the block copolymer to the epoxy resin. Thus, the block copolymer is useful as a variety of additives, such as a surfactant and a resin modifier, and particularly suitable as a stress reducing agent for a semiconductor encapsulating material.
14
US2018105669A1
POLYAMIDE MICROPARTICLES
Publication/Patent Number: US2018105669A1 Publication Date: 2018-04-19 Application Number: 15/537,941 Filing Date: 2015-12-09 Inventor: Takezaki, Hiroshi   Miyama hisashi   Otsubo, Takahiko   Assignee: Toray Industries, Inc.   IPC: C08J3/14 Abstract: Carbon-black-encapsulated polyamide microparticles are obtained by bringing a poor solvent of polyamide into contact with an emulsion to cause carbon-black-encapsulated polyamide to be precipitated, the emulsion being formed in a system that has separated into two solution phases when carbon black is mixed with a polymer solution prepared by dissolving a polyamide, a polymer (B) different from the polyamide, and an organic solvent (C), the polymer (B) being the main component in one of the phases, and, in the other of the phases, the polyamide being the main component and the carbon black being selectively distributed; wherein it is possible to obtain black polyamide microparticles having a number-average particle size of 1-200 μm and a temperature difference between the melting temperature and the cooling crystallization temperature of 25° C. or more, the microparticles being suitable for use in powder bed fusion additive manufacturing.
15
EP3388471A1
POLYARYLENE SULFIDE RESIN GRANULAR ARTICLE AND METHOD FOR PRODUCING SAME
Publication/Patent Number: EP3388471A1 Publication Date: 2018-10-17 Application Number: 17741362.2 Filing Date: 2017-01-17 Inventor: Watanabe, Kei   Takeda, Kazusada   Miyama hisashi   Nishida, Mikiya   Assignee: Toray Industries, Inc.   IPC: C08J3/12 Abstract: A polyarylene sulfide resin particulate characterized in that the mean particle diameter is from more than 1 µm to 100 µm, the uniformity is 4 or less, the melt viscosity measured at temperature of 300°C and shear rate of 1216 sec-1 is 150 to 500 Pa·s, and the recrystallization temperature, defined as temperature of the heat generation peak at the time of crystallization when cooled from 340°C to 50°C at 20°C/min using a differential scanning calorimeter, is 150 to 210°C. A polyarylene sulfide resin particulate suitable as a material powder for producing a three-dimensional molding by a powder sintering three-dimensional printer can be provided efficiently.
16
KR20180103882A
폴리아릴렌술피드 수지 분립체 및 그의 제조 방법
Publication/Patent Number: KR20180103882A Publication Date: 2018-09-19 Application Number: 20187019535 Filing Date: 2017-01-17 Inventor: Miyama hisashi   Nishida, Mikiya   Takeda, Kazusada   Watanabe, Kei   Assignee: TORAY INDUSTRIES, INC.   IPC: C08L81/02 Abstract: 평균 입경이 1㎛ 초과 100㎛ 이하이고, 균일도가 4 이하이고, 온도 300℃, 전단 속도 1216sec에서 측정한 용융 점도가 150Pa·s 이상 500Pa·s 이하이고, 시차 주사형 열계를 사용하여 20℃/분으로 340℃에서부터 50℃까지 강온했을 때의 결정화 시의 발열 피크의 정점 온도로서 정의되는 재결정화 온도가 150 내지 210℃인 것을 특징으로 하는 폴리아릴렌술피드 수지 분립체. 분말 소결법 3D 프린터에 의해 삼차원 조형물을 제작하기 위한 재료 분말로서 적합한 폴리아릴렌술피드 수지 분립체를 효율적으로 제공할 수 있다.
17
WO2018096964A1
METHOD FOR PRODUCING POLYBUTYLENE TEREPHTHALATE RESIN PARTICLES, AND POLYBUTYLENE TEREPHTHALATE RESIN PARTICLES
Publication/Patent Number: WO2018096964A1 Publication Date: 2018-05-31 Application Number: 2017040723 Filing Date: 2017-11-13 Inventor: Takahashi, Toshiya   Makita, Kei   Ito, Koya   Miyama hisashi   Asahara, Chizuru   Assignee: Toray Industries, Inc.   IPC: C08J3/12 Abstract: Provided is a method for producing polybutylene terephthalate resin particles, said method including (a) a step (dissolution step) for heating a polybutylene terephthalate resin in an organic solvent to obtain a solution of the polybutylene terephthalate resin, and (b) a step (precipitation step) for flash-cooling the solution and precipitating particles of the polybutylene terephthalate resin. The present invention provides a method for producing PBT resin particles by a simple procedure that can be implemented industrially. The present invention also provides extremely fine PBT resin particles of uniform grain size.
18
WO2018074353A1
POLYARYLENE SULFIDE RESIN POWDER GRANULAR ARTICLE MIXTURE AND METHOD FOR PRODUCING THREE-DIMENSIONAL MOLDED ARTICLE
Publication/Patent Number: WO2018074353A1 Publication Date: 2018-04-26 Application Number: 2017037157 Filing Date: 2017-10-13 Inventor: Watanabe, Kei   Shibata, Hikaru   Takeda, Kazusada   Nishida, Mikiya   Miyama hisashi   Assignee: Toray Industries, Inc.   IPC: C08L81/02 Abstract: The present invention addresses the problem of obtaining a polyarylene sulfide resin powder granular article mixture for 3D printers, the mixture enabling production of a highly heat-resistant and high-ductility three-dimensional molded article. Provided is a polyarylene sulfide resin powder granular article mixture which is characterized by having: 5-25 parts by weight of fluorine resin powder granular article with respect to 100 parts by weight of polyarylene sulfide resin powder granular article; an average particle size of greater than 1 μm to 100 μm or less; an angle of repose of 43 degrees or less; and a homogeneity of 4 or less.
19
US2018186926A1
POLYESTER RESIN POWDER MIXTURE
Publication/Patent Number: US2018186926A1 Publication Date: 2018-07-05 Application Number: 15/740,141 Filing Date: 2016-04-27 Inventor: Nishida, Mikiya   Miyama hisashi   Takezaki, Hiroshi   Nishimura, Yosuke   Takeda, Kazusada   Watanabe, Kei   Assignee: Toray Industries, Inc.   IPC: C08J3/20 Abstract: A polyester resin powder mixture has a small average particle size, excellent powder flowability, and high strength after molding. The polyester resin powder mixture is obtained by blending 0.1-5 parts by weight of silica microparticles having an average particle size of 20-500 nm in 100 parts by weight of a polyester resin powder having an average particle size that is over 1 μm and is less than or equal to 100 μm, and that has a uniformity of 4 or less.
20
KR20180022633A
폴리에스테르 수지 분립체 혼합물
Title (English): Polyester resin is divided into three-dimensional mixtures.
Publication/Patent Number: KR20180022633A Publication Date: 2018-03-06 Application Number: 20177031145 Filing Date: 2016-04-27 Inventor: Takezaki, Hiroshi   Watanabe, Kei   Nishimura, Yosuke   Takeda, Kazusada   Nishida, Mikiya   Miyama hisashi   Assignee: Toray Industries, Inc.   IPC: C08L67/02 Abstract: 평균 입경이 작고, 분체 유동성이 우수하고 또한 성형 후의 강도가 높은 폴리에스테르 수지 분립체 혼합물을 효율적으로 제공한다. 평균 입경이 1㎛를 초과하며 100㎛ 이하이고, 균일도가 4 이하인 폴리에스테르 수지 분립체 100중량부에, 평균 입경이 20 내지 500nm인 실리카 미립자를 0.1 내지 5중량부 배합한 폴리에스테르 수지 분립체 혼합물이다.