Extended syndiotactic polystyrene-elastomeric block copolymers
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United States of America Patent
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Dec 11, 2001
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N/A
app pub date -
Sep 23, 1996
filing date -
Sep 23, 1996
priority date (Note) -
Expired
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Abstract
There are disclosed a block copolymer of at least one elastomeric block and at least one syndiotactic polystyrene block which comprises 100 parts by weight of a polymer component comprising 1 to 80% by weight of syndiotactic polystyrene (sPS) block(s) and 99 to 20% by weight of rubbery elastomeric block(s) and at least 30 parts by weight of an extender. These extended block copolymer compositions display the characteristics of thermoplastic elastomers and are useful for high temperature applications possessing unique softness.
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