Patent ID: 9193860
Filing Date: 2015-11-24
Classification: C08L

Abstract:
1. A thermoplastic molding composition comprising: (A) 20 to 89.5 percent by weight relative to the weight of the composition (pbw) of an aromatic (co)poly(ester)-carbonate; (B) 5 to 40 pbw of a graft copolymer containing EPDM graft base and a grafted phase compatible with said aromatic (co)poly(ester)-carbonate, wherein the graft base is a copolymer of ethylene, propylene and ethylenically unsaturated coploymerizable non-conjugated diene monomers and wherein the grafted phase includes a copolymer of monovinylidene aromatic monomer and a polar comonomer selected from the group consisting of ethylenically unsaturated nitriles, acrylonitrile, methacrylonitrile, α,β-ethylenically unsaturated carboxylic acids and their anhydride, alkyl, aminoalkyl and hydroxyalkyl esters, acrylic acid, methacrylic acid, itaconic acid, maleic anhydride, ethyl acrylate, butyl acrylate, methyl methacrylate, hydroxyethyl and hydroxypropyl acrylates and aminoethyl acrylate, and wherein compatible means absence of phase separation detectable on a macro-scale; (C) 0.5 to 20 pbw of a terpolymer consisting of (i) 40 to 98% by weight ethylene, (ii) 1 to 40% by weight of alkylacrylate or alkyl methacrylate, wherein the alkyl component has between 1 and 10 carbon atoms, and (iii) 1 to 20% by weight of glycidyl acrylate or glycidyl methacrylate; and (D) 5 to 35 pbw of styrene/acrylonitrile copolymer; wherein the percents by weight total 100% and wherein the gloss is lower than that of a corresponding composition that contains none of (C).