发明名称 |
METHOD FOR PREPARING POLY(VINYL ALCOHOL)- CO-POLY(VINYLAMINE) VIA A TWO-PHASE PROCESS |
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 where m is 0 to 15 mole%, n is 50 to 99 mole%, x is 0 to 30 mole%, and y is 1 to 50 mole%. |
申请公布号 |
CA1330684(C) |
申请公布日期 |
1994.07.12 |
申请号 |
CA19890596256 |
申请日期 |
1989.04.10 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
PINSCHMIDT, ROBERT K., JR.;LAI, TA-WANG |
分类号 |
C08F8/12;C08F16/02;C08F216/06;(IPC1-7):C08F8/12 |
主分类号 |
C08F8/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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