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US 4,232,132 AGranted
Elastomeric thermoplastic mixtures of polypropylene and ethylene/vinyl acetate copolymers
AssigneeBayer Aktiengesellschaft
InventorsUlrich Grigo, Josef Merten, Rudolf Binsack
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Abstract
An elastomeric thermoplastic mixture comprising (A) from 40 to 95% by weight of polypropylene, and (B) from 5 to 60% by weight of a partially cross-linked ethylene/vinyl acetate copolymer which has a gel content of from 3 to 50% by weight and a vinyl acetate content of from 20 to 80% by weight, the percentages being based on the sum of A+B.
Claims6
An elastomeric thermoplastic mixture consisting of
- (A) from 40 to 95% by weight of polypropylene which is greater than 90% isotactic and
- (B) from 5 to 60% by weight of an ethylene/vinyl acetate copolymer having a vinyl acetate content of from 20 to 80% by weight, said copolymer having been partially cross-linked to a gel content of 3 to 50% by weight before admixture with said polypropylene.
Dependencies are inferred from the claim text.