发明申请
US20100171069A1 DISPERSION COMPRISING CERIUM OXIDE, SILICON DIOXIDE AND AMINO ACID
审中-公开
包含氧化铈，二氧化硅和氨基酸的分散体
- 专利标题： DISPERSION COMPRISING CERIUM OXIDE, SILICON DIOXIDE AND AMINO ACID
- 专利标题（中）： 包含氧化铈，二氧化硅和氨基酸的分散体
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申请号： US12601576申请日： 2008-05-05
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公开(公告)号： US20100171069A1公开(公告)日： 2010-07-08
- 发明人: Michael Kroell , Stefan Heberer , Katharina Dauth
- 申请人： Michael Kroell , Stefan Heberer , Katharina Dauth
- 申请人地址： DE Essen
- 专利权人： Evonik Degussa GmbH
- 当前专利权人： Evonik Degussa GmbH
- 当前专利权人地址： DE Essen
- 优先权： DE102007024577.9 20070525; DE102007035992.8 20070801
- 国际申请： PCT/EP08/55476 WO 20080505
- 主分类号： C09K13/00
- IPC分类号： C09K13/00
摘要：
A dispersion comprising particles of cerium oxide and sheet silicate and one or more aminocarboxylic acids and/or salts thereof, where the zeta potential of sheet silicate particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispersion is negative overall, the mean diameter of the•cerium oxide particles is not more than 200 nm•sheet silicate particles is less than 100 nm, the content, based in each case on the total amount of the dispersion, of•cerium oxide particles is from 0.1 to 5% by weight•sheet silicate particles is from 0.01 to 10% by weight and•aminocarboxylic acid or salt thereof is from 0.01 to 5% by weight and the pH of the dispersion is from 7.5 to 10.5.