发明授权
- 专利标题: Process for imparting wet strength to paper
- 专利标题(中): 赋予纸张湿强度的方法
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申请号: US212615申请日: 1998-12-16
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公开(公告)号: US06143132A公开(公告)日: 2000-11-07
- 发明人: Harro Traubel , Hans-Josef Laas , Helmut Reiff , Joachim Konig , Jurgen Reiners , Harald Faika
- 申请人: Harro Traubel , Hans-Josef Laas , Helmut Reiff , Joachim Konig , Jurgen Reiners , Harald Faika
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX4211480 19920406
- 主分类号: D21H17/07
- IPC分类号: D21H17/07 ; C08G18/10 ; C08G18/70 ; D21H17/08 ; D21H17/57 ; D21H21/18 ; D21H21/20
摘要:
The novel AOX-free process for imparting wet strength to paper with water-dispersible polyisocyanates is distinguished by a good wet-strength effect, even under mild drying conditions, and does not affect the activity of optical brighteners used at the same time.
公开/授权文献
- US4865171A Brake bleeder valve 公开/授权日:1989-09-12
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