| abstract |
The present invention relates to a resin composition comprising 60 to 95% by weight of a copolymer which contains, as repeating units, at least one a,b-unsaturated monocarboxylic nitrile and at least one aromatic vinyl monomer as component (A), 5 to 20% by weight of a graft rubber containing a graft core b1 made up of at least one a,b-unsaturated monocarboxylic ester having a median particle size of 50 to 150 nm and at least one graft sheath b2 made up of at least one aromatic vinyl monomer and at least one a,b-unsaturated monocarboxylic nitrile as component (B), 2 to 15% by weight of a graft rubber containing a graft core c1 made up of at least one a,b-unsaturated monocarboxylic ester having a median particle size of 300 to 600 nm and at least one graft sheath c2 made up of at least one aromatic vinyl polymer and at least one a,b-unsaturated monocarboxylic nitrile as component (C) and 0 to 10% by weight additives as component (D), wherein the sum of the amounts of components (A), (B), (C) and (D) is 100% by weight, and also a medium for the optical recording of data, comprising such a resin composition. |