发明授权
US5501772A Cellulosic modified lignin and cationic polymer composition and process
for making improved paper or paperboard
失效
纤维素改性木质素和阳离子聚合物组合物和制备改进纸或纸板的方法
- 专利标题： Cellulosic modified lignin and cationic polymer composition and process for making improved paper or paperboard
- 专利标题（中）： 纤维素改性木质素和阳离子聚合物组合物和制备改进纸或纸板的方法
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申请号： US479486申请日： 1996-06-07
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公开(公告)号： US5501772A公开(公告)日： 1996-03-26
- 发明人: David L. Elliott , Ronald J. Falcione , Wood E. Hunter
- 申请人： David L. Elliott , Ronald J. Falcione , Wood E. Hunter
- 申请人地址： PA Pittsburgh
- 专利权人： Calgon Corporation
- 当前专利权人： Calgon Corporation
- 当前专利权人地址： PA Pittsburgh
- 主分类号： D21H17/23
- IPC分类号： D21H17/23 ; D21H17/37 ; D21H17/44 ; D21H17/45 ; D21H21/16 ; D21H21/10
摘要：
A composition comprising an aqueous cellulosic furnish, a high molecular weight cationic polymer, and a modified lignin wherein the ratio of the cationic polymer to the modified lignin is from about 10:1 to 1:10 on an active basis is disclosed. A process employing this composition for making paper or paperboard having improved drainage, retention and formation properties is also provided.
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