Invention Grant
- Patent Title: Polyvinylidene fluoride resin particles and method for producing same
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Application No.: US15039270Application Date: 2014-11-07
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Publication No.: US10202496B2Publication Date: 2019-02-12
- Inventor: Toshiya Takahashi , Kei Makita , Naoki Matsuda , Koya Ito , Yoshinori Kondo , Yuji Echigo
- Applicant: TORAY INDUSTRIES, INC.
- Applicant Address: JP Tokyo
- Assignee: TORAY INDUSTRIES, INC.
- Current Assignee: TORAY INDUSTRIES, INC.
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2013-250091 20131203; JP2014-131237 20140626
- International Application: PCT/JP2014/079541 WO 20141107
- International Announcement: WO2015/083489 WO 20150611
- Main IPC: C08J3/14
- IPC: C08J3/14 ; H01M6/18 ; C08J3/12

Abstract:
A production method of polyvinylidene fluoride resin particles comprising: (Process a1) a process to precipitate the polyvinylidene fluoride resin particles by adding a 100 mass % solution in total consisting of 75 to 99 mass % organic solvent, 1 to 25 mass % water and 0.5 to 15 mass % polyvinylidene fluoride resin to a poor solvent of the polyvinylidene fluoride resin; or (Process a2) a process to precipitate polyvinylidene fluoride resin particles by performing a flash-crystallization of the solution. With such a configuration, PVDF resin particles can be industrially produced by simple operations without using surfactant agent.
Public/Granted literature
- US20170051116A1 POLYVINYLIDENE FLUORIDE RESIN PARTICLES AND METHOD FOR PRODUCING SAME Public/Granted day:2017-02-23
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