Patent ID: 8168719

Claim:
A thermoplastic molding composition, comprising a mixture composed of (A) at least one methyl methacrylate polymer, obtainable via polymerization of a mixture, composed of (A1) methyl methacrylate, and (A2) at least one C 1 -C 8 -alkyl acrylate, as monomers, as component (A), (B) at least one copolymer, obtainable via polymerization of a mixture, composed of (B1) at least one vinylaromatic monomer, and (B2) at least one vinyl cyanide, as monomers, as component (B), (C) at least one graft copolymer, obtainable from (C1) a core, and (C2) a first graft shell, obtainable via polymerization of a monomer mixture, composed of (C21) at least one vinylaromatic monomer, (C22) at least one C 1 -C 8 -alkyl methacrylate, and (C23) optionally, at least one crosslinking monomer, as monomers, and (C3) a second graft shell, obtainable via polymerization of a monomer mixture, composed of (C31) at least one C 1 -C 8 -alkyl methacrylate, and (C32) at least one C 1 -C 8 -alkyl acrylate, as monomers, as component (C), (D) at least one polybutyl acrylate whose molar mass is from 1700 to 4000 g/mol (determined as M w by means of gel permeation chromatography), as component (D), and (E) optionally, conventional additives, as component (E).