发明授权
- 专利标题: Making paper which has a high dry strength
- 专利标题(中): 制作干燥强度高的纸张
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申请号: US852363申请日: 1986-04-15
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公开(公告)号: US4784724A公开(公告)日: 1988-11-15
- 发明人: Sigberg Pfohl , Volkmar Weberndoerfer , Heinrich Hartmann , Friedrich Linhart
- 申请人: Sigberg Pfohl , Volkmar Weberndoerfer , Heinrich Hartmann , Friedrich Linhart
- 申请人地址: DEX Rheinland-Pfalz
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Rheinland-Pfalz
- 优先权: DEX3515086 19850426
- 主分类号: C08F220/00
- IPC分类号: C08F220/00 ; C08F20/52 ; C08F26/00 ; C08F26/06 ; C08F220/56 ; D21H17/37 ; D21H17/45 ; D21H3/38
摘要:
Paper having a high dry strength is made using water-soluble homopolymers of salts or quaternary 1-vinyl-2-imidazolines and copolymers of these salts or quaternary compounds with acrylamide and/or methacrylamide as agents for increasing the dry strength of paper.
公开/授权文献
- USRE30221E Dough sheet spreader 公开/授权日:1980-02-26
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