Flame retardant poly(siloxane-etherimide) copolymer compositions, methods of manufacture, and articles formed therefrom

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United States of America Patent

PATENT NO 8937127
SERIAL NO

13251130

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Abstract

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A composition comprising: a first polymer comprising a poly(etherimide-siloxane) copolymer comprising (a) a repeating polyetherimide unit, and (b) a poly(siloxane) block unit, a second polymer different from the first polymer and comprising bromine; and optionally, a third polymer comprising a polycarbonate different from the first polymer and second polymer; wherein polysiloxane block 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 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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Patent Owner(s)

Patent OwnerAddress
SHPP GLOBAL TECHNOLOGIES B V4612 PX BERGEN OP ZOOM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Evans, Thomas L Mt. Vernon, US 77 1136
Sybert, Paul D Evansville, US 48 1019

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