Polysiloxane-polycarbonate compositions, and related methods...

Details Polysiloxane-polycarbonate compositions, and related methods... Polysiloxane-polycarbonate compositions, and related methods...

2011-08-09

2011-08-09

Choi, Ling-Siu (Department: 1763)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S431000

Reexamination Certificate

active

07994254

ABSTRACT:
A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used.

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International Search Report mailed Aug. 31, 2009, PCT/US2009/04563, 3 pages.
Written Opinion for International Search Report mailed Aug. 31, 2009 for PCT/US2009/045363, 6 pages.

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