发明公开
- 专利标题: (METH)ACRYLIC ACID-BASED COPOLYMER
- 专利标题(中): 共聚物(甲基)丙烯酸酯
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申请号: EP12790025.6申请日: 2012-04-25
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公开(公告)号: EP2716664A1公开(公告)日: 2014-04-09
- 发明人: YAMAGUCHI, Hirofumi , MORIMITSU, Yuichiro , NAKATSUKA, Akio
- 申请人: Sumitomo Seika Chemicals Co., Ltd.
- 申请人地址: 346-1, Miyanishi Harima-cho Kako-gun, Hyogo 675-0145 JP
- 专利权人: Sumitomo Seika Chemicals Co., Ltd.
- 当前专利权人: Sumitomo Seika Chemicals Co., Ltd.
- 当前专利权人地址: 346-1, Miyanishi Harima-cho Kako-gun, Hyogo 675-0145 JP
- 代理机构: Nicholls, Kathryn Margaret
- 优先权: JP2011116096 20110524
- 国际公布: WO2012160933 20121129
- 主分类号: C08F220/12
- IPC分类号: C08F220/12 ; C08F220/06 ; C08F220/28
摘要:
The present invention provides an HASE polymer which produces a high thickening effect in a small amount at low costs. More specifically, the present invention provides a (meth) acrylic acid-based copolymer obtainable by polymerizing (meth) acrylic acid, an alkyl (meth) acrylate with an alkyl group of having 1 to 4 carbon atoms, and a (polyoxyethylene stearyl ether) ester of (meth)acrylic acid.
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