Invention Grant
- Patent Title: Polycarbonate compositions, methods of manufacture, and methods of use
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Application No.: US16490334Application Date: 2018-08-16
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Publication No.: US11332613B2Publication Date: 2022-05-17
- Inventor: Xing Liu , Wei Shan , Yaming Niu , Ying Na , Hongmei Zhou , Rahul Patil , Yusuf Sulub , Pooja Bajaj , Wei Zhao , Peter Vollenberg
- 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
- International Application: PCT/IB2018/056197 WO 20180816
- International Announcement: WO2019/130081 WO 20190704
- Main IPC: C08L69/00
- IPC: C08L69/00 ; C08L53/00 ; C08L83/04 ; B29C48/00 ; C08F120/14 ; C08G64/10 ; C08G64/18 ; C08L23/16 ; C08L25/12 ; C08L27/18

Abstract:
A polycarbonate composition includes: a continuous polycarbonate phase; discontinuous first domains distributed in the continuous phase, and comprising a core-shell silicone-(meth)acrylate impact modifier comprising a silicone elastomer core and a (meth)acrylate copolymer shell, wherein the first domains have an aspect ratio of at least 1.7, preferably at least 1.8; and discontinuous second domains distributed in the continuous phase, and comprising an alkenyl aromatic-olefin block copolymer impact modifier, wherein the second domains have an aspect ratio of at least 3, preferably at least 4, and a domain size of 6400 square nanometers or less, more preferably 5700 square nanometers or less. Optionally, the polycarbonate composition includes: a polycarbonate; a brominated polycarbonate different from the polycarbonate; a poly(carbonate-siloxane) comprising 30 to 70 weight percent of siloxane blocks; a core-shell silicone-(meth)acrylate impact modifier comprising a silicone elastomer core and an (meth)acrylate copolymer shell; and an alkenyl aromatic-olefin block copolymer impact modifier.
Public/Granted literature
- US20210403704A1 POLYCARBONATE COMPOSITIONS, METHODS OF MANUFACTURE, AND METHODS OF USE Public/Granted day:2021-12-30
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