Molding material from a particulate graft polymer

A molding material consisting essentially of

• (i) from 1-50% by weight of a particulate graft polymer of
• A:
• a grafting base (A) based on
• A1:
• an acrylate rubber having a glass transition temperature below 0.degree. C. the acrylate rubber consisting of
• A11:
• from 75 to 99.8% by weight of at least one alkyl acrylate (A11) where the alkyl radical is of 1 to 8 carbon atoms
• A12:
• from 0.1 to 5% by weight of at least one polyfunctional crosslinking monomer (A12) which contains at least two ethylene double bonds and is not conjugated in the 1,3-position, and
• A13:
• from 0.1 to 20% by weight of at least one monomer (A13) which is ethylenically unsaturated and contains a tertiary amino group in the molecule, or based on
• A2:
• a diene rubber (A2) having a glass transition temperature below 0.degree. C. wherein the diene rubber is obtained from conjugated diene monomers, the diene rubber consisting of
• A21:
• at least 50% by weight of one or more dienes (A21),
• A22:
• up to 50% by weight of at least one copolymerizable ethylenically unsaturated monomer (A22), and
• A23:
• from 0.1 to 15% by weight of at least one monomer (A23) which is ethylenically unsaturated and contains a tertiary amine group in the molecule, and
• B:
• a graft (B) of
• B1:
• from 40 to 89.9% by weight of at least one vinylaromatic monomer (B1),
• B2:
• from 10 to 49.9% by weight of at least one polar copolymerizable ethylenically unsaturated monomer (B2),
• B3:
• from 0.1 to 20% by weight of at least one monomer (B3) which is ethylenically unsaturated and contains carboxyl or sulfo groups, and (ii) from 50 to 90% by weight of at least one matrix polymer obtained from ethylenically unsaturated monomers, which polymer has a glass transition temperature of more than 25.degree. C.