Invention Grant
- Patent Title: Reduced color polycarbonate compositions, methods of manufacture, and articles thereof
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Application No.: US16469216Application Date: 2018-01-16
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Publication No.: US11312822B2Publication Date: 2022-04-26
- Inventor: Aaron David Bojarski , Jorge A. Garcia Agudo
- Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
- Applicant Address: NL Bergen op Zoom
- Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee Address: NL Bergen op Zoom
- Agency: Cantor Colburn LLP
- Priority: EP17382020 20170117
- International Application: PCT/IB2018/050268 WO 20180116
- International Announcement: WO2018/134734 WO 20180726
- Main IPC: C08G64/06
- IPC: C08G64/06 ; C08G64/30 ; C08J5/18 ; C08G101/00
Abstract:
A method of preparing a polycarbonate composition, including: melt polymerizing in a polymerization unit a dihydroxy compound with a diaryl carbonate and removing a stream of color inducing species containing an isopropenyl phenyl-containing group from the polymerization unit, to form a polycarbonate composition, wherein the polycarbonate has a color inducing species containing an isopropenyl phenyl-containing group level below 170 ppm is provided.
Public/Granted literature
- US20210292477A1 REDUCED COLOR POLYCARBONATE COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES THEREOF Public/Granted day:2021-09-23
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