发明授权
- 专利标题： Wet strength resins
- 专利标题（中）： 湿强度树脂
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申请号： US663105申请日： 1984-10-22
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公开(公告)号： US4537657A公开(公告)日： 1985-08-27
- 发明人: Gerald I. Keim
- 申请人： Gerald I. Keim
- 申请人地址： DE Wilmington
- 专利权人： Hercules Incorporated
- 当前专利权人： Hercules Incorporated
- 当前专利权人地址： DE Wilmington
- 主分类号： C08G69/48
- IPC分类号： C08G69/48 ; C08G71/02 ; D21H17/55 ; D21H17/57 ; D21H3/58
摘要：
Disclosed are novel wet strength resins for paper. The resins are produced by reacting an epihalohydrin, such as epichlorohydrin, with an aminopolyamide-polyureylene intermediate derived by reacting methylbisaminopropylamine with oxalic acid or a diester of oxalic acid and with urea.
公开/授权文献
- US5715046A Process and device for oil stability measurement 公开/授权日：1998-02-03
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