发明授权
US3931122A Method for producing high molecular weight polyacrylamide type resins
失效
生产高分子量聚丙烯酰胺型树脂的方法
- 专利标题: Method for producing high molecular weight polyacrylamide type resins
- 专利标题(中): 生产高分子量聚丙烯酰胺型树脂的方法
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申请号: US436046申请日: 1974-01-24
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公开(公告)号: US3931122A公开(公告)日: 1976-01-06
- 发明人: Shin-ichi Isaoka , Tutomu Shintani , Shigenori Taziri , Shiro Sakai , Wataru Thoma
- 申请人: Shin-ichi Isaoka , Tutomu Shintani , Shigenori Taziri , Shiro Sakai , Wataru Thoma
- 申请人地址: JA
- 专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人地址: JA
- 优先权: JA48-10861 19730125
- 主分类号: C08F2/00
- IPC分类号: C08F2/00 ; C02F1/54 ; C08F2/10 ; C08F4/00 ; C08F4/40 ; C08F20/56 ; C08F2/14 ; C08F2/20
摘要:
High molecular weight acrylamide polymers useful as flocculants are obtained by copolymerizing acrylamide with a monovinyl monomer in a mixture of water and acetone in the presence of a redox type catalyst comprising a persulfate, an aliphatic amine and at least one Lewis acid selected from the group consisting of chlorides and bromides of aluminum, antimony, lithium and zinc.