发明公开
EP2226339A1 (METH)ACRYLIC ACID/ALKYL (METH)ACRYLATE ESTER COPOLYMER AND COSMETIC PREPARATION CONTAINING THE SAME
有权
（METH）丙烯酸酯（甲基）丙烯酸酯共聚物在KOSMETISCHE ZUBEREITUNG，DIE DIESELBEENTHÄLT
- 专利标题： (METH)ACRYLIC ACID/ALKYL (METH)ACRYLATE ESTER COPOLYMER AND COSMETIC PREPARATION CONTAINING THE SAME
- 专利标题（中）： （METH）丙烯酸酯（甲基）丙烯酸酯共聚物在KOSMETISCHE ZUBEREITUNG，DIE DIESELBEENTHÄLT
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申请号： EP08866566.6申请日： 2008-12-19
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公开(公告)号： EP2226339A1公开(公告)日： 2010-09-08
- 发明人: YOSHINAKA, Masatoyo , MORIMITSU, Yuichiro , KOBAYASHI, Shinji , KOSUGI, Masaki
- 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： Vossius & Partner
- 优先权： JP2007340497 20071228
- 国际公布： WO2009084469 20090709
- 主分类号： C08F220/06
- IPC分类号： C08F220/06 ; A61K8/81 ; C08F216/12 ; C08F220/12
摘要：
A (meth)acrylic acid/alkyl (meth)acrylate ester copolymer containing constituents of 95.42 to 97.48% by mass of (meth)acrylic acid, 2.43 to 4.30% by mass of an alkyl (meth)acrylate ester of which alkyl group has 18 to 24 carbon atoms, and 0.08 to 0.30% by mass of a compound having two or more ethylenically unsaturated groups; and cosmetics blended with the copolymer. According to the copolymer of the present invention, a neutral viscous aqueous solution having a high viscosity can be formed even in the presence of an electrolyte in a relatively high concentration, without being affected by its temperature and electrolytic concentration; therefore, the copolymer of the present invention can be suitably used in cosmetics and the like.
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