发明授权
US5300566A Method for preparing poly(vinyl alcohol)-co-poly(vinylamine) via a
two-phase process
失效
通过两相工艺制备聚（乙烯醇） - 共聚（乙烯基胺）的方法
- 专利标题： Method for preparing poly(vinyl alcohol)-co-poly(vinylamine) via a two-phase process
- 专利标题（中）： 通过两相工艺制备聚（乙烯醇） - 共聚（乙烯基胺）的方法
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申请号： US181887申请日： 1988-04-15
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公开(公告)号： US5300566A公开(公告)日： 1994-04-05
- 发明人: Robert K. Pinschmidt, Jr. , Ta-Wang Lai
- 申请人： Robert K. Pinschmidt, Jr. , Ta-Wang Lai
- 申请人地址： PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： PA Allentown
- 主分类号： C08F8/12
- IPC分类号： C08F8/12 ; C08F16/06
摘要：
Vinyl acetate and an N-vinyl formamide are copolymerized to yield poly(vinyl acetate)-co-poly(N-vinyl formamide) which is base hydrolyzed to poly(vinyl alcohol)-co-poly(N-vinyl formamide). Two phase hydrolysis of particles of poly(vinyl alcohol)-co-poly(N-vinyl formamide) as a slurry in methanol yields particles of poly(vinyl alcohol)-co-poly(vinylamine).provided is a copolymer of the following general formula ##STR1## where m is 0 to 15 mole %. n is 50 to 99 mole %.x is 0 to 30 mole %. andy is 1 to 50 mole % .
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