Impact resistant blends of thermoplastic polyesters and modified block copolymers
First Claim
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1. Impact resistant polymeric composition comprising:
- (a) from 50 to 97 percent by weight of a thermoplastic polyester; and
(b) from 3 to 50 percent by weight of a functionalized selectively hydrogenated block copolymer of the formula Bn (AB)o Ap where n=0 or 1, o≧
1, p=0 or 1, each A is predominantly a polymerized vinyl aromatic hydrocarbon block and, each B prior to hydrogenation is predominantly a polymerized conjugated diene hydrocarbon block, to which has been grafted at least one graftable functional molecule selected from the group consisting of an electrophilic graftable molecule containing a functional group and an electrophile, wherein substantially all of said electrophilic graftable molecules or electrophiles are grafted to the block copolymer in the vinyl aromatic hydrocarbon block.
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Abstract
The present invention relates to an impact resistant polymeric composition comprising a polyester and a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein at least one graftable functional molecule is grafted to the block copolymer in the vinylarene block.
49 Citations
34 Claims
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1. Impact resistant polymeric composition comprising:
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(a) from 50 to 97 percent by weight of a thermoplastic polyester; and (b) from 3 to 50 percent by weight of a functionalized selectively hydrogenated block copolymer of the formula Bn (AB)o Ap where n=0 or 1, o≧
1, p=0 or 1, each A is predominantly a polymerized vinyl aromatic hydrocarbon block and, each B prior to hydrogenation is predominantly a polymerized conjugated diene hydrocarbon block, to which has been grafted at least one graftable functional molecule selected from the group consisting of an electrophilic graftable molecule containing a functional group and an electrophile, wherein substantially all of said electrophilic graftable molecules or electrophiles are grafted to the block copolymer in the vinyl aromatic hydrocarbon block. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification