method for preparing a polymeersamenstelling units of a etheen - propene - non conjugated dieenterpolymeer,a polymer based on a buta - animals and of an aromatic vinylmonomeer contains.

摘要

Aromatic vinylpolymer composns. 1 to 20 pbw of an ethylene-propylene-non conjugated diene terpolymer rubber and 5-50 wt.% w.r.t. terpolymer, of a polymer of formula X(- H2-CH-)nX (where X = H, C2H4OH or COOH, and n = 10-100), are dissolved in 100 pbw of an aromatic vinyl monomer; the so-obtained soln. is bulk prepolymerised, with stirring, and polymerisation is then completed by bulk or suspension polymerisation. The products combine outstanding weatherability with good impact resistance.