发明名称 |
Process for preparing polyvinylalcohol-polyether graft-copolymers by extrusion |
摘要 |
<p>Preparation of grafting copolymers (I) exhibiting repeating units of vinyl alcohol and polyether group, comprises reacting grafting copolymers (1) exhibiting repeating units of esters of vinyl alcohols and polyether group, with water and/or at least a 1-6C alkanol in the presence of a catalyst, where the reaction takes place in an extruder.</p> |
申请公布号 |
EP1674485(A1) |
申请公布日期 |
2006.06.28 |
申请号 |
EP20050028229 |
申请日期 |
2005.12.22 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
GUENTHERBERG, NORBERT;SEEBECK, TANJA;LANGE, RONALD FRANS MARIA |
分类号 |
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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