发明名称 |
Improvements in paper making |
摘要 |
A process for improving art chemistry in papermaking is accomplished by the addition of a cationic polymer and natural hectorite to the furnish prior to headbox. The cationic polymer has an intrinsic viscosity in the range of 5 to 25 dl/g and a charge density of 0.78 to 5 equivalent cationic nitrogen per Kg. The natural hectorite is added in an amount of 0.5 to 6 lbs/ton dry base sheet and the weight ratio of cationic polymer to natural hectorite being 0.5:1 to 10:1. |
申请公布号 |
AU2259892(A) |
申请公布日期 |
1994.01.04 |
申请号 |
AU19920022598 |
申请日期 |
1992.06.12 |
申请人 |
DELTA CHEMICALS, INC. |
发明人 |
HARRIS J. BIXLER;STEPHEN PEATS |
分类号 |
D21H17/29;D21H17/37;D21H17/45;D21H17/63;D21H17/68;D21H21/10;D21H23/14 |
主分类号 |
D21H17/29 |
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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