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US 5,852,118 AGranted
Block copolymers of polyolefins with polyurethanes, copolyesters or copolyamides and their use
AssigneeAdvanced Elastomer Systems, L.P.
InventorsJacques Horrion, Trazollah Ouhadi
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Abstract
The present invention relates to new block copolymers of chemically modified polyolefins and thermoplastic polyurethanes, copolyesters or copolyamides a method for the preparation of said block copolymers and their use for compatibilizing blends of polar and non-polar thermoplastic elastomers. The block copolymers according to the present invention can further be used for promoting the adhesion of thermoplastic elastomers onto various polar engineering resins.
Claims3
A blend comprising
- (a) 60% to 99% by weight, based on (a)+(b), of a non-polar thermoplastic elastomer, and
- (b) 1% to 40% by weight, based on (a)+(b), of a block copolymer comprising the reaction product of
- (i) 5% to 95% by weight, based on (i)+(ii), of an olefin copolymer having a functional group in the main or side chain thereof,
- (ii) 95% to 5% by weight, based on (i)+(ii), of a thermoplastic polyurethane, thermoplastic copolyester or thermoplastic copolyamide, and
- (iii) 0.05 to 5 parts by weight, based on 100 parts of (i)+(ii), of one or more isocyanates reactive with (i) and (ii).
2 more elements
Dependencies are inferred from the claim text.