- Patent Title: Polyarylene sulfide resin particulate and method of producing same
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Application No.: US16071108Application Date: 2017-01-17
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Publication No.: US11008426B2Publication Date: 2021-05-18
- Inventor: Kei Watanabe , Kazusada Takeda , Hisashi Miyama , Mikiya Nishida
- Applicant: Toray Industries, Inc.
- Applicant Address: JP Tokyo
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP Tokyo
- Agency: DLA Piper LLP (US)
- Priority: JPJP2016-008767 20160120
- International Application: PCT/JP2017/001310 WO 20170117
- International Announcement: WO2017/126484 WO 20170727
- Main IPC: C08J3/12
- 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.
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