| 摘要 |
Thermoplastic molding mass comprises (A) 0-97.9 wt.% of one or more (methyl)styrene-acrylonitrile-copolymer, which is free of maleic acid anhydride derived units; (B) 1-98.9 wt.% of one or more (methyl)styrene-acrylonitrile copolymer having 0.5-5 wt.% of maleic acid anhydride derived units; (C) 1-75 wt.% of glass fibers; (D) 0.1-20 wt.% of one or more flow improvers comprising (D1) at least one highly- or hyper-branched polycarbonate, (D2) at least one highly- or hyper-branched polyester (I) and (D3) alkylacrylate oligomer; and (E) 0-40 wt.% of further fillers, rubbers and/or additives. Thermoplastic molding mass comprises (A) 0-97.9 wt.% of one or more (methyl)styrene-acrylonitrile-copolymer, where the copolymer is free of maleic acid anhydride derived units and has a viscosity number of less than 85 ml/g; (B) 1-98.9 wt.% of one or more (methyl)styrene-acrylonitrile copolymer having 0.5-5 wt.% of maleic acid anhydride derived units; (C) 1-75 wt.% of glass fibers; (D) 0.1-20 wt.% of one or more flow improvers comprising (D1) at least one highly- or hyper-branched polycarbonate with a hydroxyl number of 1-600 mg potassium hydroxide/g (according DIN 53420, part 2), (D2) at least one highly- or hyper-branched polyester of type (A xB 1> y) (I) and (D3) alkylacrylate oligomer with a weight average molecular weight of 1200-4000 g/mole; and (E) 0-40 wt.% of further fillers, rubbers and/or additives. A : at least 1.1; and y : at least 2.1. An independent claim is included for the preparation of thermoplastic molding mass comprising mixing the components (A)-(D) and optionally (E) in any sequence. |
