Crystalline copolymers prepared from N,N'-terephthaloyldi-beta-alanine and a glycol
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United States of America Patent
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Jul 12, 1983
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N/A
app pub date -
Dec 21, 1982
filing date -
Dec 21, 1982
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Expired
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Abstract
Novel water insoluble polyamide esters are prepared from dicarboxylic acid diamide derivatives of terephthalic acid and a glycol. In one embodiment, nearly perfectly alternating polyamide esters are prepared in the presence of antimony (III) acetate.
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