发明名称 |
FUMED SILICA OF CONTROLLED AGGREGATE SIZE AND PROCESSES FOR MANUFACTURING THE SAME |
摘要 |
The invention provides fumed silica comprising aggregates that have an aggregate size and a surface area that satisfy particular formulas relating aggregate size to surface area, as well as aggregates that exhibit particular viscosity, power law exponent index, and/or elastic modulus characteristics when dispersed in liquid media. The invention also provides processes of preparing such fumed silica by combining a silica precursor with a stream of combustible gas, combusting the stream, and producing a stream of combusted gas and fumed silica particles, wherein dopants are introduced, the time/temperature profile, or history, of the stream of combusted gas and fumed silica particles is adjusted to allow for post-quench aggregate growth, and/or additional silica precursor is introduced into the stream of combusted gas. |
申请公布号 |
WO2010028261(A2) |
申请公布日期 |
2010.03.11 |
申请号 |
WO2009US56064 |
申请日期 |
2009.09.04 |
申请人 |
CABOT CORPORATION;DAVIS, SHELDON;SANCHEZ GARCIA, ANGELICA M.;MATHEU, DAVID;KUTSOVSKY, YAKOV E. |
发明人 |
DAVIS, SHELDON;SANCHEZ GARCIA, ANGELICA M.;MATHEU, DAVID;KUTSOVSKY, YAKOV E. |
分类号 |
C01B33/18;C09C1/30 |
主分类号 |
C01B33/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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