发明授权
US08197640B2 Paper making process using cationic polyacrylamides and crosslinking compositions for use in same
有权
造纸工艺使用阳离子聚丙烯酰胺和交联组合物用于其中
- 专利标题： Paper making process using cationic polyacrylamides and crosslinking compositions for use in same
- 专利标题（中）： 造纸工艺使用阳离子聚丙烯酰胺和交联组合物用于其中
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申请号： US11880252申请日： 2007-07-20
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公开(公告)号： US08197640B2公开(公告)日： 2012-06-12
- 发明人: Joseph Schaffer
- 申请人： Joseph Schaffer
- 申请人地址： US LA Denham Springs
- 专利权人： Bercen, Inc.
- 当前专利权人： Bercen, Inc.
- 当前专利权人地址： US LA Denham Springs
- 代理机构： Ceasar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.
- 主分类号： D21H17/33
- IPC分类号： D21H17/33 ; D21H17/49 ; D21H21/20
摘要：
The present invention relates to methods for manufacturing paper or paperboard with improved strength, the methods comprising the addition of the reaction product of a cationic polyacrylamide and an aqueous aldehyde generating compound or a glyoxal releasing compound, or glyoxal itself, prepared at the mill site at high concentrations, then diluted and added into a fiber furnish prior to forming or drying of the paper or paperboard sheet.
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