发明授权
US07985292B2 Precipitated silica for thickening and creating thixotropic behavior in liquid systems
有权
沉淀二氧化硅用于增稠并在液体体系中产生触变性能
- 专利标题： Precipitated silica for thickening and creating thixotropic behavior in liquid systems
- 专利标题（中）： 沉淀二氧化硅用于增稠并在液体体系中产生触变性能
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申请号： US11944851申请日： 2007-11-26
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公开(公告)号： US07985292B2公开(公告)日： 2011-07-26
- 发明人: Christian Panz , Karl Meier , James Toth , Guido Titz , Matt Romaine , Mario Scholz
- 申请人： Christian Panz , Karl Meier , James Toth , Guido Titz , Matt Romaine , Mario Scholz
- 申请人地址： US NJ Parsippany
- 专利权人： Evonik Degussa Corporation
- 当前专利权人： Evonik Degussa Corporation
- 当前专利权人地址： US NJ Parsippany
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 主分类号： C04B28/26
- IPC分类号： C04B28/26 ; B05D3/00 ; B60C1/00 ; C08K3/34 ; B02C19/06 ; B02C19/00 ; B32B9/04 ; B32B5/16
摘要：
A precipitated silica having a d50-value of from 150 to 2000 nm, a d90-value of from 500 to 7000 nm, a silanol group density of from 2.5 to 8 OH/nm2, and a modified tapped density of less than or equal to 70 g/l is useful for thickening and providing thixotropy in liquid systems and shows superior efficiency at thickening and creating thixotropy compared to existing grades of precipitated silica. The precipitated silica functions best as a thixotrope in non-polar or intermediate polar liquid systems such as unsaturated polyester (UPE) resin systems.
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