发明授权
US4229551A Preparation of modified polymers of N-vinylpyrrolid-2-one and their use
for the preparation of polymers interrupted by bridge members
失效
N-乙烯基吡咯烷酮-2-酮的改性聚合物的制备及其制备由桥连构件中断的聚合物的用途
- 专利标题： Preparation of modified polymers of N-vinylpyrrolid-2-one and their use for the preparation of polymers interrupted by bridge members
- 专利标题（中）： N-乙烯基吡咯烷酮-2-酮的改性聚合物的制备及其制备由桥连构件中断的聚合物的用途
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申请号： US56136申请日： 1979-07-09
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公开(公告)号： US4229551A公开(公告)日： 1980-10-21
- 发明人: Ferdinand Straub , Herbert Spoor , Claus Cordes
- 申请人： Ferdinand Straub , Herbert Spoor , Claus Cordes
- 申请人地址： DEX
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DEX
- 优先权： DEX2831335 19780717
- 主分类号： C08F8/00
- IPC分类号： C08F8/00 ; C08F8/04 ; C08G18/62 ; C08F8/42
摘要：
A process for the preparation of modified poly-N-vinylpyrrolid-2-one containing two identical reactive groups, wherein polyvinylpyrrolidone is treated with complex hydrides, with or without further reaction of the modified polyvinylpyrrolidone with a reactive bifunctional compound, to give a polymer which has a molecular weight at least 2.5 times as great as that of the starting polymer.
公开/授权文献
- USD382748S Beverage cup dispenser 公开/授权日：1997-08-26
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