| 发明名称 |
Additive for paper and its use. |
| 摘要 |
<p>A mixture of polymers derived from degradation of a polysaccharide derivative is used during the paper-making process as a means of strengthening the paper and as a dewatering agent. Paper is either coated or impregnated with a mixture of the polymers.</p> |
| 申请公布号 |
EP0470871(A1) |
申请公布日期 |
1992.02.12 |
| 申请号 |
EP19910307417 |
申请日期 |
1991.08.12 |
| 申请人 |
ALKO LTD. |
发明人 |
RHA, CHOKYUN;TIMONEN, MARITTA |
| 分类号 |
D21H19/54;D21H17/00;D21H17/24;D21H21/18 |
主分类号 |
D21H19/54 |
| 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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