| 发明名称 |
Method for the reduction of discolouration and/or tackiness when upgrading waste paper. |
| 摘要 |
<p>In the upgrading of waste paper a surface active tertiary or quaternary ammonium compound is added in an amount of 0.05-2.0% calculated on the weight of dry cellulose fibres. By the addition the inconveniences caused by the presence of discolouring and tacky compounds are reduced.</p> |
| 申请公布号 |
EP0171370(A1) |
申请公布日期 |
1986.02.12 |
| 申请号 |
EP19850850070 |
申请日期 |
1985.03.04 |
| 申请人 |
BEROL KEMI AB |
发明人 |
ELSBY, LEIF;CARLSSON, AGNETA |
| 分类号 |
D21C5/02;D21C9/08;D21H17/07;D21H17/53;(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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