Patent ID: 6346572
Filing Date: 2002-02-12
Classification: C08F,C08L

Abstract:
A molding material comprising:A: from 60 to 98% by weight of a hard matrix A of polymerized or copolymerized units of at least one vinylaromatic monomer or at least one vinylaromatic monomer and at least one polar comonomer and B: from 2 to 40% by weight of a block copolymer rubber phase B prepared by anionic polymerization and containing from 10 to 80% by weight, based on the block copolymer rubber phase B, of occlusions (a) of matrix material (A) formed during the polymerization f the hard matrix A in the presence of the block copolymer rubber, the total composition of the block copolymer rubber comprising from 80 to 35% by weight of a vinylaromatic monomer V and from 20 to 65% by weight of a diene D, and consisting of at least one random block (V/D) of vinylaromatic monomer and diene and of at least one block consisting of vinylaromat monomer V, wherein the weight ratio of vinylaromatic monomer V to diene D in the random block (V/D) is from 90:10 to 10:90.