| abstract |
The invention relates to polymer compounds containing A) 0 to 98 parts by weight, based on the sum of A and B, of a thermoplastic polymer, or a mixture of a plurality of thermoplastic polymers differing from B, and B) 2 to 100 parts by weight, based on the sum of A and B, of B1) at least one graft polymer produced by an emulsion polymerisation process, B2) optionally at least one graft polymer produced in a mass, suspension or solution polymerisation process, B3) optionally at least one rubber-free vinyl (co)polymer and (C) 0 to 30 parts by weight of at least one commercially available polymer additive, wherein the total of parts by weight A and B is 100, characterised in that (i) the graft polymer produced in the emulsion polymerisation process in accordance with component B1 was precipitated with at least one alkaline earth metal salt selected from the group of magnesium or calcium salts in basic medium (pH > 7), and (ii) the graft polymer in accordance with component B1 produced in the emulsion polymerisation process contains at least one sodium salt and at least one alkaline earth metal salt in accordance with (i), wherein the metal ions are present in a molar ratio Na/(Mg+Ca) of at least 0.10 and at most 1.0. |