| 发明名称 |
Process for the preparation of polyvinyl alcohol |
| 摘要 |
The reaction of polyvinyl acetate in methanolic solution with methanolic sodium hydroxide at a temperature between 10 DEG C. and 65 DEG C. with stirring at a stirring speed of from 5 to 200 rpm with a stirrer which has a ratio of stirrer diameter (d) to container diameter (D) in the range of 0.6<d/D<0.999 leads to a homogeneously hydrolyzed polyvinyl alcohol. |
| 申请公布号 |
US5914369(A) |
申请公布日期 |
1999.06.22 |
| 申请号 |
US19970789465 |
申请日期 |
1997.01.27 |
| 申请人 |
CLARIANT GMBH |
发明人 |
FUSS, ROBERT;MUELLER, HANS-KARL |
| 分类号 |
C08F8/12;C08F16/06;(IPC1-7):C08F8/00 |
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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