发明授权
US08404083B2 Process for increasing the dry strength of paper, board and cardboard
有权
提高纸张，纸板和纸板干燥强度的工艺
- 专利标题： Process for increasing the dry strength of paper, board and cardboard
- 专利标题（中）： 提高纸张，纸板和纸板干燥强度的工艺
-
申请号： US13058217申请日： 2009-08-10
-
公开(公告)号： US08404083B2公开(公告)日： 2013-03-26
- 发明人: Hans-Joachim Haehnle , Christian Jehn-Rendu , Rainer Blum , Ellen Krueger , Norbert Schall , Martin Ruebenacker
- 申请人： Hans-Joachim Haehnle , Christian Jehn-Rendu , Rainer Blum , Ellen Krueger , Norbert Schall , Martin Ruebenacker
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE Ludwigshafen
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： EP08162545 20080818
- 国际申请： PCT/EP2009/060331 WO 20090810
- 国际公布： WO2010/020551 WO 20100225
- 主分类号： D21H11/00
- IPC分类号： D21H11/00
摘要：
Process for the production of paper, board and cardboard having high dry strength by addition of at least one water-soluble (a) polymer comprising vinylamine units and at least one (b) polymer comprising ethylenimine units and at least one water-soluble polymeric anionic compound to a paper stock, draining of the paper stock with sheet formation and drying of the paper products, the water-soluble cationic polymers (a) and (b) being metered in any sequence or as a mixture into a paper stock, and papers which are obtainable by this process.
公开/授权文献
信息查询
