Patent ID: 7365125
Filing Date: 2008-04-29
Classification: C08L

Abstract:
1. A thermoplastic composition, comprising: about 10 to about 84 wt. % of a polycarbonate resin; about 0.5 to about 40 wt. % of a polycarbonate-polysiloxane copolymer; about 1 to about 40 wt. % of an impact modifier composition wherein the impact modifier comprises an elastomeric phase comprising a butadiene rubber, an isoprene rubber, an ethylene-propylene rubber, an ethylene-propylene-diene monomer rubber, an ethylene-vinyl acetate rubber, a silicone rubber, an elastomeric rubber derived from a C wherein each X c is independently hydrogen, C 1 -C 12 alkyl, C 3 -C 12 cycloalkyl, C 6 -C 12 aryl, C 7 -C 12 aralkyl, C 7 -C 12 alkaryl, C 1 -C 12 alkoxy, C 3 -C 12 cycloalkoxy, C 6 -C 12 aryloxy, chloro, bromo, or hydroxy, and R is hydrogen, C 1 -C 5 alkyl, bromo, or chloro, with a monomer of the generic formula (14): wherein R is hydrogen, C 1 -C 5 alkyl, bromo, or chloro, and X c is cyano, C 1 -C 12 alkoxycarbonyl, C 1 -C 12 aryloxycarbonyl, or hydroxycarbonyl; and about 1 to about 50 wt. % of an alkyl (meth)acrylate polymer wherein the poly(alkyl(meth)acrylate) comprises impact-modified PMMA; each based on the total combined weight of the thermoplastic composition, exclusive of any filler.