Patent ID: 7232854

Claim:
A composition comprising: (a) a polycarbonate/siloxane component, said polycarbonate/siloxane component being a polycarbonate siloxane copolymer, or a mixture of a polycarbonate siloxane copolymer and polycarbonate resin; (b) a mineral filler selected from the group consisting of clay, tale, wollastonite and combinations thereof; and (c) a flame retardant component consisting of a phosphate-based flame retardant; wherein the composition comprises at least 50% by weight of polycarbonate taking into account the polycarbonate portion of the polycarbonate siloxane copolymer and any polycarbonate resin and from 1 to 20% of the mineral filler; and wherein the amounts of polycarbonate siloxane copolymer, mineral filler and flame retardant are effective to provide a composition with a UL94 V0 rating at a thickness of 0.8 mm, a notched Izod impact strength or of 25 k-cm/cm or greater and a flexural modulus of 29,000 kg/cm 2 or greater.