| 发明名称 |
Process for preparing poly ( vinyl acetals ) and poly (vinyl ketals) |
| 摘要 |
A process for preparing poly(vinyl acetals) or poly(vinyl ketals) by reacting poly(vinyl alcohol) with an aldehyde or ketone in the presence of a catalyst which contains acid groups which are chemically bound on a sheet-like support which is insoluble in the reaction medium. |
| 申请公布号 |
US5866654(A) |
申请公布日期 |
1999.02.02 |
| 申请号 |
US19970850555 |
申请日期 |
1997.05.02 |
| 申请人 |
CLARIANT GMBH |
发明人 |
FUSS, ROBERT W.;GUTWEILER, MATTHIAS;BAUMGARTNER, MARTIN |
| 分类号 |
B01J31/02;B01J31/08;B01J31/10;C08F8/28;C08F16/38;(IPC1-7):C08F8/28 |
主分类号 |
B01J31/02 |
| 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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