components comprising grafted polymers for use in extrusion

摘要

Molding materials (I) comprises thermoplastic homo-, co- or ter-polymer from styrene, alpha methylstyrene, core-substituted styrene, methylmethacrylate, acrylonitrile, methacrylnitrile, maleic acid anhydride and/or N-substituted maleimide; grafting polymer of e.g. styrene, alpha methylstyrene, core substituted styrene, methylmethacrylate and rubber; partially oxidized polyolefin; and alkaline earth metal oxides. Molding materials (I) comprises: (A) 5-95 wt.% (related to A+B) of at least a thermoplastic homo -, co- or terpolymer from styrene, alpha methylstyrene, core-substituted styrene, methylmethacrylate, acrylonitrile, methacrylnitrile, maleic acid anhydride and/or N-substituted maleimide or their mixtures; (B) 95-5 wt.% grafting polymer (related to A+B) of (B1) 5-90 parts per weight styrene, alpha methylstyrene, core substituted styrene, methylmethacrylate, acrylonitrile, methacrylnitrile, N-substituted maleimide or their mixtures, (B2) 95-10 parts per weight of at least a rubber at less than or equal to 10[deg]C which forms a partially cross linked particles with a median particle diameter (d 50) of 0.05-20 mm; (C) 0.05-5 parts per weight (per 100 parts of A+B) of at least a partially oxidized polyolefin; and (D) 0.005-2 parts per weight (per 100 parts of A+B) of at least one alkaline earth metal oxides (preferably magnesium oxide and calcium oxide). An independent claim is also included for molded bodies obtained by the extrusion of (I).