发明申请
- 专利标题: PROCESS FOR THE PRODUCTION OF SIZED AND/OR WET-STRENGTH PAPERS, PAPERBOARDS AND CARDBOARDS
- 专利标题(中): 生产尺寸和/或湿度强度纸,纸张和卡片的方法
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申请号: US12975470申请日: 2010-12-22
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公开(公告)号: US20120160437A1公开(公告)日: 2012-06-28
- 发明人: Stefan Sommer , Erhard Luehmann , Serkan Unal , Michael J. Dvorchak
- 申请人: Stefan Sommer , Erhard Luehmann , Serkan Unal , Michael J. Dvorchak
- 申请人地址: DE Leverkusen US PA Pittsburgh
- 专利权人: Bayer MaterialScience AG,Bayer MaterialScience LLC
- 当前专利权人: Bayer MaterialScience AG,Bayer MaterialScience LLC
- 当前专利权人地址: DE Leverkusen US PA Pittsburgh
- 主分类号: D21H17/57
- IPC分类号: D21H17/57 ; D21H17/00
摘要:
The present invention relates to a process for the production of sized and/or wet-strength papers, paperboards or cardboards, wherein an aqueous radiation-curable dispersion containing water and at least one polymer, characterized in that the polymer contains cationic groups, is mixed with suspended wood pulp and/or chemical pulp and this mixture is sieved, pressed, thermally dried and then radiation-cured, characterized in that the dispersion is employed in amounts, based on its non-aqueous content in relation to the solid content of the wood pulp and/or chemical pulp, of from 0.001 to 10 wt. %, the papers, paperboards and cardboards produced by this process, and compositions comprising suspended wood pulp and/or chemical pulp and an aqueous radiation-curable dispersion containing at least one polymer, characterized in that the polymer contains cationic groups.