| 摘要 |
The molding composition comprises components A to C and, if desired, D:a: as component A, from 20 to 94% by weight of a hard component made from one or more copolymers of styrene and/or alpha-methylstyrene with acrylonitrile, where the proportion of acrylonitrile is from 10 to 50% by weight,b: from 5 to 70% by weight of at least one graft copolymer B, made fromb1: as component B1, from 10 to 90% by weight of at least one elastomeric particulate graft base with a glass transition temperature below 0° C., andb2: as component B2, from 10 to 90% by weight of at least one graft made from a copolymer of styrene and/or alpha-methylstyrene with acrylonitrile, where the proportion of acrylonitrile is from 10 to 50% by weight,c: as component C, from 0.1 to 10% by weight of at least one three-block copolymer of the formula X-Y-X with a central block Y made from propylene oxide units with an average molecular weight in the range from 2000 to 4000 and terminal blocks X made from ethylene oxide units whose average proportion in the three-block copolymer is from 2 to 35% by weight,where the total weight of components A to C is 100% by weight, andd: as component D, from 0 to 10% by weight, based on the total weight of components A to C, of other conventional auxiliaries and fillers.
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