Patent ID: 8889769

Claim:
A thermoplastic molding composition comprising A) from 2 to 99.8% by weight of at least one polyester, B) from 0 to 49.9% by weight of a rubber-free copolymer different from C) and/or G) made of b 1 ) from 60 to 95% by weight of styrene or of substituted styrenes of the general formula Ia or a mixture of these in which R is an alkyl radical having from 1 to 8 carbon atoms or a hydrogen atom, and R 1 is an alkyl radical having from 1 to 8 carbon atoms, and n has the value 1, 2, or 3, and b 2 ) from 5 to 40% by weight of at least one unsaturated nitrile, C) from 1 to 49.9% by weight of one or more impact-modified graft rubbers having no olefinic double bond in the rubber phase, wherein said one or more graft rubbers have a swelling index from 6 to 60 (in toluene), and wherein component C) is a graft polymer composed of C1) from 40 to 80% by weight of a graft base made of an elastomeric polymer based on alkyl acrylates having 1 to 8 carbon atoms in the alkyl radical and with glass transition temperature below 10° C., C2) from 20 to 60% by weight of a graft made of C21) from 60 to 85% by weight of styrene or of substituted styrenes of the general formula Ia or a mixture of these, C22) from 15 to 35% by weight of at least one unsaturated nitrile, D) from 0.1 to 1% by weight of a compound of the formula (I) E) from 0.1 to 1% by weight of a mixture of compounds of the formula (II) F) from 0 to 1% by weight of a mixture of compounds of the formula (III) or from 0 to 1% by weight of a mixture of compounds of the formula (IV) or from 0 to 1% by weight of a mixture of compounds of the formula (V): or from 0 to 1% by weight of a mixture of compounds of the formula (VI) or a mixture of these, G) from 0 to 30% by weight of a copolymer made of g 1 ) from 49.5 to 99.5% by weight of structural units deriving from one or more vinylaromatic monomers, g 2 ) from 0 to 50% by weight of structural units deriving from one or more vinyl cyanides, g 3 ) from 0.5 to 40% by weight of structural units deriving from one or more dicarboxylic anhydrides, and g 4 ) from 0 to 25% by weight of structural units deriving from other copolymerizable monomers, where each of the % by weight values for component G) is based on the total weight of the structural units deriving from components g 1 , g 2 , g 3 , and g 4 , and the total of these values is 100% by weight, and H) from 0 to 60% by weight of other additives, wherein the total of the percentages by weight of A) to H) do not exceed 100% by weight.