发明授权
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
- 专利标题: Polysalts of acid-ester compounds with hydrazine or hydrazides and method of preparing heterocyclic polymers from said polysalts
- 专利标题(中): 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
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申请号: US628611申请日: 1975-11-04
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公开(公告)号: US4089846A公开(公告)日: 1978-05-16
- 发明人: Karl F. Schimmel , Marco Wismer
- 申请人: Karl F. Schimmel , Marco Wismer
- 申请人地址: PA Pittsburgh
- 专利权人: PPG Industries, Inc.
- 当前专利权人: PPG Industries, Inc.
- 当前专利权人地址: PA Pittsburgh
- 主分类号: C08G73/02
- IPC分类号: C08G73/02 ; C08G73/08 ; C08G73/14 ; C07C109/04 ; C07C109/087 ; C07C109/10
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.
公开/授权文献
- US5725247A End section of frame member 公开/授权日:1998-03-10
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