Impact Resistant Compositions Of Thermoplastic Polyamides And Modified Block Copolymers For Use In Tubes, Pipes, And Hoses
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United States of America Patent
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Issued Date -
May 28, 2015
app pub date -
Nov 25, 2013
filing date -
Nov 25, 2013
priority date (Note) -
Abandoned
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Abstract
The present invention provides for a thermoplastic composition that includes from about 40 to about 95 wt. % of a polyamide, and from about 5 to about 30 wt. % of at least one functionalized, selectively hydrogenated block copolymer, including at least one polymer block A, the A block being at least predominantly a polymerized alkenyl arene block, and at least one selectively hydrogenated polymer block B, the B block prior to hydrogenation being at least predominantly a polymerized conjugated diene block to which grafted thereto on the average an effective amount of monomer acids or their derivatives, including maleic acid, succinic acid, itaconic acid, fumaric acid, and acrylic acid. The composition optionally includes from about 5 to about 50 wt. % of a selectively hydrogenated block copolymer.
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