发明授权
US4904757A Polyesters of 4,4'dihydroxybicyclohexyl 失效
4,4'-二羟基双环己基的聚酯

Polyesters of 4,4'dihydroxybicyclohexyl
摘要:
Thermotropic semiflexible polyesters are taught which are obtained by polycondensation of 4,4'-dihydroxybicyclohexyl with at least one .alpha.,.omega.- alkandioic acid of general formula:HOOC-(CH.sub.2).sub.n -COOH (I)wherein n is an integer comprised between 4 and 12.
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