Thermoplastic polymer composition.

摘要

The invention relates to a thermoplastic polymer composition comprising a polyphenylene oxide and a copolymer which contains units of a vinyl-aromatic compound and units of an a,b-unsaturated dicarboxylic acid anhydride, and is characterized in that said composition also contains 0.1 - 20% by weight of functionalized polystyrene. It has been found that the polymer composition according to the invention displays both a high heat distortion resistance and a high notched bar impact strength. Surprisingly, the addition of the functionalized polystyrene is found to have a very advantageous effect on the mechanical properties.