| 发明名称 |
Method for the preparation of polyvinyl acetals with a selected viscosity |
| 摘要 |
Fractionating crude polyvinyl acetal into at least two fractions containing polyvinyl acetal with different viscosities comprises screening the raw polyvinyl acetal into at least two fractions with different particle size. |
| 申请公布号 |
EP2730591(A1) |
申请公布日期 |
2014.05.14 |
| 申请号 |
EP20120191563 |
申请日期 |
2012.11.07 |
| 申请人 |
KURARAY EUROPE GMBH |
发明人 |
MEISE, MARKUS, DR.;LANG, CHRISTOPH, DR. |
| 分类号 |
C08F8/00;B07B1/00;B07B4/00;B07B7/00;B07B13/18 |
主分类号 |
C08F8/00 |
| 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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