Invention Grant
- Patent Title: Block copolymer and production method of the same
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Application No.: US14770382Application Date: 2014-03-05
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Publication No.: US09718928B2Publication Date: 2017-08-01
- Inventor: Keiko Ichinose , Makito Yokoe , Daisuke Yamamoto , Koji Yamauchi , Kohei Yamashita
- 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: JP2013-044004 20130306; JP2013-044005 20130306; JP2013-204070 20130930
- International Application: PCT/JP2014/001207 WO 20140305
- International Announcement: WO2014/136448 WO 20140912
- Main IPC: C08G81/00
- IPC: C08G81/00 ; C08G75/14 ; C08G69/14 ; C08L71/00 ; C08G69/42 ; C08G69/48
Abstract:
A block comprised of a copolymer is obtained by ring-opening polymerization of a cyclic polyarylene sulfide, so that a block copolymer is produced to have a maximum peak molecular weight measured by size exclusion chromatography (SEC) in a range of not less than 2,000 and less than 2,000,000 and have a unimodal molecular weight distribution in this range.
Public/Granted literature
- US20160009868A1 BLOCK COPOLYMER AND PRODUCTION METHOD OF THE SAME Public/Granted day:2016-01-14
Information query
