Invention Grant
- Patent Title: Flame retardant poly(siloxane) copolymer compositions, methods of manufacture, and articles formed therefrom
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Application No.: US14585588Application Date: 2014-12-30
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Publication No.: US09296898B2Publication Date: 2016-03-29
- Inventor: Paul Dean Sybert , Laura Gayle Schultz Hume , James Franklin Hoover , Thomas L. Evans
- Applicant: SABIC Global Technologies B.V.
- Applicant Address: NL
- Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee Address: NL
- Agency: Cantor Colburn, LLP
- Priority: IN920/DEL/2011 20110331
- Main IPC: C08L83/10
- IPC: C08L83/10 ; C08L69/00 ; C08L63/00

Abstract:
A poly(siloxane) copolymer composition comprising: a first polymer comprising a first repeating unit, and a poly(siloxane) block unit, a second polymer different from the first polymer and comprising of bromine; and optionally, one or more third polymers different from the first polymer and second polymer; wherein siloxane units are present in the composition in an amount of at least 0.3 wt %, and bromine is present in the composition in an amount of at least 7.8 wt %, each based on the sum of the wt % of the first, second, and optional one or more third polymers; and further wherein an article molded from the composition has an OSU integrated 2 minute heat release test value of less than 65 kW-min/m2 and a peak heat release rate of less than 65 kW/m2, and an E662 smoke test Dmax value of less than 200.
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