Modified polymer rubber and process for preparing the same.

摘要

A modified polymer rubber is obtained by (1) graft-polymerizing at least one grafting monomer to a shredded rubbery polymer (A) in an aqueous suspension at a temperature of 30 DEG - 130 DEG C to obtain a graft polymer, and (2) kneading the graft polymer with at least one polymerizable monomer in the presence of a free radical initiator at a temperature of 180 DEG -280 DEG C. This process does not cause gel formation and is advantageous in manufacturing cost. The modified polymer rubber thus obtained is excellent in processability and storage stability, and highly useful as a compatibilizer for various resins.