Thermoplastic molding materials

A thermoplastic molding composition, comprising

• (A) from 20 to 99% by weight of at least one graft copolymer, prepared from
• (a1) from 30 to 90% by weight of a core, obtainable by polymerizing a monomer mixture, consisting essentially of
• (a11) from 80 to 99.99% by weight of at least one C1-C10-alkyl acrylate,
• (a12) from 0.01 to 20% by weight of at least one copolymerizable, poly-functional, crosslinking monomer, and
• (a13) from 0 to 40% by weight, based on the total weight of components (a11) and (a12), of at least one other copolymerizable, monoethylenically unsaturated monomer, and
• (a2) from 10 to 70% by weight of a graft shell, obtainable by polymerizing a monomer mixture in the presence of the core (a1), and consisting essentially of
• (a21) from 50 to 100% by weight of at least one styrene compound of the formula (I)
• where R1 and R2, independently of one another, are hydrogen or C1-C8-alkyl and/or of a C1-C8-alkyl (meth)acrylate, and
• (a22) from 0 to 50% by weight of at least one monofunctional comonomer, and
• (B) from 1 to 80% by weight of a copolymer prepared from at least one alpha-olefin and from at least one polar comonomer, with the proviso that the monomers used are not vinyl acetate or any vinylaromatic monomer, and
• (C) from 0 to 80% by weight of a thermoplastic polymer, obtainable by polymerizing a monomer mixture, consisting essentially of
• (c1) from 50 to 100% by weight of at least one vinylaromatic monomer and/or of a C1-C8-alkyl (meth)acrylate, and
• (c2) from 0 to 50% by weight of at least one monofunctional comonomer, and
• (D) from 0.1 to 20% by weight of a substantially uncrosslinked polyalkyl acrylate with a number average molar mass Mn of from 300 to 25 000 g/mol,
• where the overall total of components A to D is 100% by weight.