发明授权
- 专利标题： Amphoteric polyelectrolyte
- 专利标题（中）： 两性聚电解质
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申请号： US907854申请日： 1978-05-19
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公开(公告)号： US4251651A公开(公告)日： 1981-02-17
- 发明人: Shigenao Kawakami , Shigeru Ura , Naoyoshi Jinno , Shin-Ichi Isaoka , Wataru Tohoma
- 申请人： Shigenao Kawakami , Shigeru Ura , Naoyoshi Jinno , Shin-Ichi Isaoka , Wataru Tohoma
- 申请人地址： JPX Osaka
- 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： JPX Osaka
- 优先权： JPX52-64216 19770531
- 主分类号： B01D21/01
- IPC分类号： B01D21/01 ; A61K8/81 ; A61Q5/06 ; C08F20/00 ; C08F20/34 ; C08F20/52 ; C08F220/00 ; C08F220/04 ; C08F220/06 ; C08F220/34 ; C08F220/56 ; D21H17/37 ; D21H17/43 ; D21H17/45 ; C08F214/00 ; C08F214/14
摘要：
An amphoteric polyelectrolyte which is useful as a paper additive capable of imparting dry strength to paper, a high molecular flocculant, a high molecular dehydrating agent or the like is prepared by copolymerizing a cationic vinyl monomer such as .beta.-methacryloxyethyl trimethylammonium chloride, an anionic vinyl monomer such as acrylic acid and a vinyl monomer such as acrylamide, optionally with a nonionic vinyl monomer such as acrylonitrile, in a solvent in the presence of a catalyst.