Composition of polyester-block copolymer

Details Composition of polyester-block copolymer Composition of polyester-block copolymer

1981-11-17

1984-04-10

Ziegler, J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 64, C08F 800, C08L 5100

Patent

active

044422628

ABSTRACT:
Disclosed herein is a composition of a polyester-block copolymer, comprising 5 to 80% by weight of at least one kind of graft-copolymer obtained by graft-copolymerizing 50 to 25 parts by weight of a monomeric mixture predominantly consisting essentially of styrene and methyl methacrylate and containing 0.01 to 3.0% by weight of a cross-linking agent with 50 to 75 parts by weight of a cross-linked elastomeric trunk polymer containing not less than 50% by weight of rubber like segment selected from the group consisting of butadiene unit and C.sub.4 to C.sub.10 -alkyl acrylate units, and 0.01 to 3.0% by weight of a cross-linking agent, and 95 to 20% by weight of a polyester-block copolymer, the composition giving shaped articles of favorable superficial appearance even when processed by shape-forming under conditions of mixing and kneading of a relatively low degree.

REFERENCES:
patent: 3919353 (1975-11-01), Castelnuovo et al.
patent: 3968183 (1976-07-01), Hayashi et al.
patent: 4034013 (1977-07-01), Lane

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