发明授权
US4689374A Water soluble polyamidoaminepolyamine having weight average molecular
weight of at least 5.times.10.sup.5
失效
水溶性聚酰胺氨基多胺的重均分子量至少为5×10 5 + B
- 专利标题： Water soluble polyamidoaminepolyamine having weight average molecular weight of at least 5.times.10.sup.5
- 专利标题（中）： 水溶性聚酰胺氨基多胺的重均分子量至少为5×10 5 + B
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申请号： US845485申请日： 1986-03-28
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公开(公告)号： US4689374A公开(公告)日： 1987-08-25
- 发明人: Per E. A. Hansson , Felek Jachimowicz
- 申请人： Per E. A. Hansson , Felek Jachimowicz
- 申请人地址： NY New York
- 专利权人： W. R. Grace & Co.
- 当前专利权人： W. R. Grace & Co.
- 当前专利权人地址： NY New York
- 主分类号： C08G69/48
- IPC分类号： C08G69/48 ; D21H17/55 ; C08G69/26
摘要：
A product formed by reacting a polymeric polyamidoamine with a low molecular weight polyamine under reactions conditions to cause transamidation and then further reacting the transamidation product with a compound which is polyfunctional with respect to amino groups present in the transamidation product. The resultant material is useful in paper making processes as a retention and drainage aid.
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