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US4089846A Polysalts of acid-ester compounds with hydrazine or hydrazides and method of preparing heterocyclic polymers from said polysalts 失效
含有肼或酰肼的酸酯化合物的多糖和由所述多元醇制备杂环聚合物的方法

Polysalts of acid-ester compounds with hydrazine or hydrazides and
method of preparing heterocyclic polymers from said polysalts
摘要:
Novel polymers formed from the reaction of tricarboxylic anhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or hydrazide are disclosed.
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