TERPOLYMER DERIVED FROM AROMATIC VINYL MONOMER OF ACRYLONITRILE AND ALKYL ACRYLATE OR METHACRYLATE, THERMOPLASTIC COMPOSITION COMPRISING THE TERPOLYMER AND ARTICLES MADE THEREFROM

摘要

Terpolymer useful as a processing aid. This terpolymer comprises: 10-49% by weight of vinyl aromatic monomer; 5-35% by weight of acrylic nitrile; 21-60% by weight of alkyl acrylate or methacrylate, and having a viscosity number of more than 4 as measured in dimethylformamide at 30 degree (s) C, at a concentration of 100 mg of terpolymer for 100 ml of dimethylformamide. / P P Application to vinyl halide polymers. / P