Invention Grant
- Patent Title: Polycarbonate resin
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Application No.: US15769010Application Date: 2016-11-02
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Publication No.: US10556987B2Publication Date: 2020-02-11
- Inventor: Noriyuki Kato , Mitsuteru Kondo , Munenori Shiratake , Kentaro Ishihara , Koji Hirose , Shinya Ikeda
- Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2015-216977 20151104
- International Application: PCT/JP2016/082613 WO 20161102
- International Announcement: WO2017/078073 WO 20170511
- Main IPC: C08G64/06
- IPC: C08G64/06 ; G02B3/00 ; G02B1/04 ; C08G64/30 ; C08J5/18

Abstract:
The present invention provides a polycarbonate resin containing a repeating unit represented by formula (A) in the amount of 1-99.5 wt %, the polycarbonate resin also containing an oligomer having a specific structure in a total amount that constitutes a content of 2.5 wt % or lower. (In formula (A), R1 and R2 each independently represent a hydrogen atom, a phenyl group, a C1-6 alkyl group, or a C1-6 alkyloxy group).
Public/Granted literature
- US20190055351A1 POLYCARBONATE RESIN Public/Granted day:2019-02-21
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