Thermoplastic materials containing A) 5 to 80 parts by weight of a thermoplastic co- or terpolymer made from the monomers styrene, &agr;-methylstyrene, methyl methacrylate, acrylonitrile with an average molecular weight ({overscore (M)}w) of 70,000 to 119,000, B) 1 to 30 parts by weight of a thermoplastic copolymer made from 60 to 95% by weight of styrene and/or &agr;-methylstyrene and 40 to 5% by weight of acrylonitrile with an average molecular weight ({overscore (M)}w) of 25,000 to 49,500, C) 0.1 to 10 parts by weight of a thermoplastic co- or terpolymer made from the monomers styrene, &agr;-methylstyrene, methyl methacrylate, acrylonitrile with an average molecular weight ({overscore (M)}w) of 1,500 to 6,000 and D) 0.5 to 50 parts by weight of a particulate rafted rubber with a glass transition temperature ≦10° C. and an average particle diameter (d50) of 0.05 to 0.50 &mgr;m, which contains 15 to 80 parts by weight of a chemically bonded polymer made from styrene, methyl methacrylate, acrylonitrile or mixtures thereof, per 100 parts by weight of rubber and optionally E) 10 to 300 parts by weight of an aromatic polycarbonate and/or poly-alkylene terephthalate per 100 parts by weight of A+B+C+D, or F) 1 to 40 parts by weight of a thermoplastic polyurethane.