| 发明名称 |
Avsvärtning av avfallspapper |
| 摘要 |
<p>Process for de-inking old papers in the presence of at least partly water-soluble polymers and/or copolymers with mean molecular weights between 2000 and 500 000 obtained by polymerization or by copolymerization of monomers containing amino groups with unsaturated acid derivatives.</p> |
| 申请公布号 |
FI95605(C) |
申请公布日期 |
1996.02.26 |
| 申请号 |
FI19910002248 |
申请日期 |
1991.05.09 |
| 申请人 |
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN, |
发明人 |
FISCHER,HERBERT;HORNFECK,KLAUS;SCHIEFERSTEIN,LUDWIG |
| 分类号 |
D21C5/02;(IPC1-7):D21C5/02 |
主分类号 |
D21C5/02 |
| 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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