Patent ID: 6890979
Filing Date: 2005-05-10
Classification: C08F,C08L

Abstract:
1. A thermoplastic molding compositions comprising A) 5 to 95 parts by wt. of at least one member selected from the group consisting of aromatic polycarbonate and polyester carbonate, B) 1 to 50 parts by wt. of at least one graft rubber, obtained by emulsion polymerization of styrene and acrylonitrile in the weight ratio 90:10 to 50:50, wherein styrene and/or acrylonitrile may be replaced wholly or partly by α-methylstyrene, methyl methacrylate or N-phenylmaleinimide, in the presence of at least two rubber lattices of type (B1) and (B2) which contain in each case 0 wt. % to 50 wt. % of a further vinyl comonomers in copolymerized form, and wherein the weight ratio of monomers used to rubber lattices used is 25:75 to 70:30, characterized in that the rubber latex (B1) has a particle diameter d C) 0 to 50 parts by wt. of at least one thermoplastic homo-, co- or terpolymer containing at least one monomer selected from the group consisting of styrene, α-methylstyrene, acrylonitrile, methyl methacrylate and N-substituted maleinimide, D) 0.5 to 25 parts by wt. of at least one flame retardant selected from the group consisting of compounds conforming to formula (III) wherein R wherein R and optionally at least one conventional additive, the sum of the parts by weight of the components totaling 100.