发明授权
US5647956A 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： US566634申请日： 1995-12-04
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公开(公告)号： US5647956A公开(公告)日： 1997-07-15
- 发明人: David L. Elliott , Wood E. Hunter , Ronald J. Falcione
- 申请人： David L. Elliott , Wood E. Hunter , Ronald J. Falcione
- 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 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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