| abstract |
The invention relates to graft polymers comprising A) a base polymer obtainable by functionalisation of a polyphenylene ether a1 or of a mixture of a1 and up to 20% by weight, based on the mixture, of a vinylaromatic polymer a2 by means of an ethylenically unsaturated compound a3 containing at least one carboxyl, carboxylic anhydride, ester, amide or imide group, and B) a mixture of a vinylaromatic, ethylenically unsaturated monomer b1 and a nitrile group-containing, ethylenically unsaturated, monomer b2, to their preparation, and to their use for the preparation of moulding compositions by blending with SAN, ABS and ASA polymers. |