| abstract |
Thermoplastic molding compositions with high gloss and good colorability, containing a first graft copolymer A of 55 to 75, preferably 60 to 70% by weight, based on A, of an elastomeric crosslinked acrylic ester polymer A1 with an average particle diameter (weight average) of 50 to 150 nm as a graft base and 45 to 25, preferably 40 to 30% by weight, based on A, of a graft shell A2 composed of a vinylaromatic monomer and a polar, copolymerizable, ethylenically unsaturated monomer in a weight ratio of 80:20 to 65:35, and also a second, separately Graft copolymer B prepared from 50 to 80, preferably 60 to 70% by weight, based on B, of an elastomeric crosslinked acrylic ester polymer B1 different from A1 with an average particle diameter (weight average) in the range from 200 to 700 nm as a graft base, a first Graft shell B2 from 5 to 30, preferably 10 to 20% by weight, based on B, of a vinylaromatic monomer n and a second graft shell B3 from 15 to 40, preferably 20 to 30% by weight, based on B, of a mixture of a vinyl aromatic monomer B31 and a polar, copolymerizable, ethylenically unsaturated monomer B32 in a weight ratio of B31 to B32 of 90:10 up to 60:40 and a hard matrix C composed of one or more copolymers of styrene, α-methylstyrene, acrylonitrile, methyl methacrylate and / or phenylmaleimide, the weight ratio A1: B1 of the graft bases being in the range from 95: 5 to 35:65 and the proportion the sum of A1 and B1 of the graft bases is 10 to 35% by weight, based on the molding composition of A, B and C. |