发明名称 |
A PROCESS FOR IMPROVING PAPER STRENGTH |
摘要 |
The present invention provides a process for preparing a paper or paper board of improved strength which comprises the steps of i) providing a cellulosic thick stock, ii) diluting the thick stock of step i) to form a thin stock, iii) draining the thin stock of step ii) on a wire to form a web, and iv) drying the web of step iii) to form paper or paper board, wherein the cellulosic thick stock of step (i) comprises organic polymeric microparticles, as well as paper obtainable by above process. |
申请公布号 |
WO2008049748(A1) |
申请公布日期 |
2008.05.02 |
申请号 |
WO2007EP60929 |
申请日期 |
2007.10.15 |
申请人 |
CIBA HOLDING INC.;BUWONO, SULEMAN;REDDIHOUGH, GARY;DOGGE, JOZEF MARIA LEONARDUS |
发明人 |
BUWONO, SULEMAN;REDDIHOUGH, GARY;DOGGE, JOZEF MARIA LEONARDUS |
分类号 |
D21H23/14;D21H17/37;D21H21/18;D21H21/20 |
主分类号 |
D21H23/14 |
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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