公开(公告)号：US20240228703A9

公开(公告)日：2024-07-11

申请号：US18278950

申请日：2022-02-22

Applicant: Toray Industries, Inc.

Inventor： Hirokazu Iwata ,  Tomohiko Nakamura ,  Yota Okuno ,  Kei Watanabe ,  Mikiya Nishida ,  Itaru Asano

IPC: C08G69/26 ,  B33Y70/00 ,  C08J3/16

CPC classification number: C08G69/26 ,  B33Y70/00 ,  C08J3/16 ,  C08J2377/06

Abstract: A polymer powder includes a polyamide, wherein a melting point determined in differential scanning calorimetry is 190° C. or higher, a difference between the melting point and a melting onset temperature, which is defined in differential scanning calorimetry as a lowest temperature among temperatures at each of which a first temperature differential value of Heat Flow (W/g) observed between a peak top temperature of an endothermic peak, observed when 10 mg of powder is heated at a rate of 20° C./min from 30° C. in a nitrogen atmosphere, and a temperature point of −50° C. from the peak top, becomes −0.2 (W/g.° C.), is less than 30° C., and a D50 particle size is 1 μm or more and 100 μm or less.

公开(公告)号：US11008426B2

公开(公告)日：2021-05-18

申请号：US16071108

申请日：2017-01-17

Applicant: Toray Industries, Inc.

Inventor： Kei Watanabe ,  Kazusada Takeda ,  Hisashi Miyama ,  Mikiya Nishida

IPC: C08J3/12 ,  C08K3/013 ,  B29C67/04 ,  B33Y70/00 ,  C08K3/36 ,  B33Y80/00

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.

公开(公告)号：US20240132666A1

公开(公告)日：2024-04-25

申请号：US18278950

申请日：2022-02-22

Applicant: Toray Industries, Inc.

Inventor： Hirokazu Iwata ,  Tomohiko Nakamura ,  Yota Okuno ,  Kei Watanabe ,  Mikiya Nishida ,  Itaru Asano

IPC: C08G69/26 ,  B33Y70/00 ,  C08J3/16

CPC classification number: C08G69/26 ,  B33Y70/00 ,  C08J3/16 ,  C08J2377/06

Abstract: A polymer powder includes a polyamide, wherein a melting point determined in differential scanning calorimetry is 190° C. or higher, a difference between the melting point and a melting onset temperature, which is defined in differential scanning calorimetry as a lowest temperature among temperatures at each of which a first temperature differential value of Heat Flow (W/g) observed between a peak top temperature of an endothermic peak, observed when 10 mg of powder is heated at a rate of 20° C./min from 30° C. in a nitrogen atmosphere, and a temperature point of −50° C. from the peak top, becomes −0.2 (W/g.° C.), is less than 30° C., and a D50 particle size is 1 μm or more and 100 μm or less.

公开(公告)号：US20180186926A1

公开(公告)日：2018-07-05

申请号：US15740141

申请日：2016-04-27

Applicant: Toray Industries, Inc.

Inventor： Kei Watanabe ,  Kazusada Takeda ,  Yosuke Nishimura ,  Hiroshi Takezaki ,  Hisashi Miyama ,  Mikiya Nishida

IPC: C08G63/183 ,  C08K3/36 ,  C08K3/40 ,  C08K3/30 ,  C08K3/22 ,  C08K3/04 ,  C08J3/20

CPC classification number: C08G63/183 ,  C08J3/124 ,  C08J3/203 ,  C08J2367/00 ,  C08K3/013 ,  C08K3/04 ,  C08K3/22 ,  C08K3/30 ,  C08K3/36 ,  C08K3/40 ,  C08K7/06 ,  C08K7/14 ,  C08K2003/2227 ,  C08K2003/2296 ,  C08K2003/3045 ,  C08K2201/003 ,  C08L67/00 ,  C08L67/02

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.

公开(公告)号：US09862804B2

公开(公告)日：2018-01-09

申请号：US15120816

申请日：2015-02-13

Applicant: Toray Industries, Inc.

Inventor： Kei Watanabe ,  Kazusada Takeda ,  Hiroshi Takezaki ,  Kei Makita ,  Yosuke Nishimura

IPC: C08J3/12 ,  C08K3/36 ,  C09D181/04

CPC classification number: C08J3/12 ,  C08J2381/04 ,  C08K3/36 ,  C08K2201/011 ,  C09D181/04 ,  C08L81/02

Abstract: A polyarylene sulfide resin powder/grain composition in which 100 weight parts of polyarylene sulfide resin powder/grain material whose average particle diameter exceeds 1 μm and is less than or equal to 100 μm and whose uniformity degree is less than or equal to 4 has been blended with 0.1 to 5 weight parts of an inorganic fine particle having an average particle diameter greater than or equal to 20 nm and less than or equal to 500 nm.

公开(公告)号：US20160362524A1

公开(公告)日：2016-12-15

申请号：US15120816

申请日：2015-02-13

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kei Watanabe ,  Kazusada Takeda ,  Hiroshi Takezaki ,  Kei Makita ,  Yosuke Nishimura

IPC: C08J3/12 ,  C08K3/36

CPC classification number: C08J3/12 ,  C08J2381/04 ,  C08K3/36 ,  C08K2201/011 ,  C09D181/04 ,  C08L81/02

Abstract: A polyarylene sulfide resin powder/grain composition in which 100 weight parts of polyarylene sulfide resin powder/grain material whose average particle diameter exceeds 1 μm and is less than or equal to 100 μm and whose uniformity degree is less than or equal to 4 has been blended with 0.1 to 5 weight parts of an inorganic fine particle having an average particle diameter greater than or equal to 20 nm and less than or equal to 500 nm.

Abstract translation: 已经将平均粒径超过1μm并且小于或等于100μm且均匀度小于或等于4的聚芳硫醚树脂粉末/颗粒材料100重量份的聚芳硫醚树脂粉末/颗粒组合物 与0.1〜5重量份平均粒径大于等于20nm且小于等于500nm的无机细颗粒混合。

公开(公告)号：US20250075086A1

公开(公告)日：2025-03-06

申请号：US18549245

申请日：2022-05-23

Applicant: Toray Industries, Inc.

Inventor： Azusa Kawai ,  Kei Watanabe ,  Naoyo Okamoto

IPC: C09D5/03 ,  B29C64/153 ,  B29K81/00 ,  B29K105/00 ,  B29K307/04 ,  B29K309/08 ,  B33Y70/10 ,  C08G75/0209 ,  C08K7/06 ,  C08K7/14 ,  C08K7/18 ,  C09D7/40 ,  C09D7/61 ,  C09D181/02

Abstract: A resin powder mixture which contains a polyarylene sulfide resin powder having a gas generation amount of 0.25 wt % or less, a melt flow rate of 5-75 g/10 min and an average particle diameter of 1-100 μm.

公开(公告)号：US20200040204A1

公开(公告)日：2020-02-06

申请号：US16590826

申请日：2019-10-02

Applicant: Toray Industries, Inc.

Inventor： Kei Watanabe ,  Kazusada Takeda ,  Yosuke Nishimura ,  Hiroshi Takezaki ,  Hisashi Miyama ,  Mikiya Nishida

IPC: C09D11/104 ,  C09D11/037 ,  B33Y70/00

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.

公开(公告)号：US11001046B2

公开(公告)日：2021-05-11

申请号：US16590826

申请日：2019-10-02

Applicant: Toray Industries, Inc.

Inventor： Kei Watanabe ,  Kazusada Takeda ,  Yosuke Nishimura ,  Hiroshi Takezaki ,  Hisashi Miyama ,  Mikiya Nishida

IPC: B33Y10/00 ,  B29C64/153 ,  C09D11/104 ,  C09D11/037 ,  B33Y70/00 ,  B29K67/00

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.

公开(公告)号：US20200055234A1

公开(公告)日：2020-02-20

申请号：US16343668

申请日：2017-10-13

Applicant: Toray Industries, Inc.

Inventor： Kei Watanabe ,  Kazusada Takeda ,  Hisashi Miyama ,  Mikiya Nishida ,  Hikaru Shibata

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.