High ductility blends of PMMA and polycarbonate-siloxane copolymer

US10655001B2 · kind B2 · utility

Assignee

• SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

• Christopher Luke Hein · Evansville, US
• Hao Zhou · Evanston, US
• Bing Zhou · Cranbury, US
• Manojkumar Chellamuthu · Greenwood, US
• Peter Vollenberg · Evansville, US

Key dates

• Filing date: Oct 22, 2019
• Grant date: May 19, 2020
• Expiry date: Oct 22, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/035
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic composition includes: from about 5 wt % to about 70 wt % poly(methyl methacrylate) (PMMA); from about 15 wt % to about 50 wt % of a first poly(carbonate-siloxane) copolymer having a siloxane content of from about 35 wt % to about 45 wt %; and from about 10 wt % to about 45 wt % of a second poly(carbonate-siloxane) copolymer. The second poly(carbonate-siloxane) copolymer has a siloxane content of from about 15 wt % to about 25 wt % or from about 4 wt % to about 8 wt %.