High impact blends of copolyether-ester elastomers, rubber graft

Details High impact blends of copolyether-ester elastomers, rubber graft High impact blends of copolyether-ester elastomers, rubber graft

1989-07-28

1991-09-10

Bleutge, John C.

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

Synthetic resins

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

525 92, 525166, 525173, 525175, C08L 6702, C08L 3506, C08L 5104

Patent

active

050474707

ABSTRACT:
Thermoplastic polymer compositions comprise a thermoplastic copolyether-ester elastomer, a rubber graft polymer and a rigid polymer. The rigid polymer is formed from one or more monomers selected from styrene, .alpha.-methyl styrene and halogen-substituted styrenes, at least 20 weight percent acrylonitrile, and N-phenyl maleimide, and is included in the compositions to provide improved impact strength and tensile elongation without significantly deteriorating other physical properties of the compositions.

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patent: 4582876 (1986-04-01), Weemes et al.
patent: 4659765 (1987-04-01), Liu et al.
patent: 4666973 (1987-05-01), Heinz et al.

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