Polyamide with improved gas barrier properties from cyclo-alkylidene bisphenoxy diacetic acid
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United States of America Patent
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Sep 25, 1990
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N/A
app pub date -
May 26, 1989
filing date -
May 26, 1989
priority date (Note) -
Expired
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Abstract
Polyamide resins useful for forming containers having improved resistance to gas permeability comprising the reaction product of (A) a dicarboxylic acid corresponding to the structure ##STR1## wherein X is hydrogen or unsubstituted alkyl containing 1-5 carbons and n is an integer in the range of 4 to 10, and (B) a diamine containing 5 to 16 carbon atoms.
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