P-HYDROXYBENZOIC ESTERS, PLASTICIZER CONTAINING THE SAME, POLYAMIDE RESIN COMPOSITION, AND MOLDED ARTICLES
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United States of America Patent
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Feb 19, 2002
Grant Date -
Mar 14, 2002
app pub date -
Aug 27, 1999
filing date -
Feb 28, 1997
priority date (Note) -
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Abstract
The present invention provides a p-hydroxybenzoic ester represented by the formula (1) 1 wherein R.sup.1 represents a C.sub.6-C.sub.10 straight-chain or branched-chain alkyl group, A.sup.1 represents a C.sub.2-C.sub.4 alkylene group and n in an integer of 1 to 8, a plasticizer for at least one polyamide resin selected from nylon 11 and nylon 12 which comprises the ester, a polyamide resin composition comprising the ester and at least one polyamide resin selected from nylon 11 and nylon 12, and a polyamide resin molded article comprising the ester and having excellent high-temperature volatilization resistance and low-temperature impact resistance.
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