US Patent 7947346 Surface modification of silica in an aqueous environment
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Patent abstract
The present invention is drawn to a method of treating silica in an aqueous environment. The method can comprise steps of dispersing silica particulates in an aqueous environment to form an aqueous dispersion; reversing the net charge of a surface of the silica particulates from negative to positive using a surface activating agent, thereby forming surface-activated silica particulates dispersed in the water; and contacting the surface-activated silica particulates with organosilane reagents to form reagent-modified and surface-activated silica particulates.
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Patent Inventor Names
Tienteh Chen0
Yubai Bi0
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US Patent 07947346 Surface modification of silica in an aqueous environment US Patent 7947346 Surface modification of silica in an aqueous environment
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Patent Number
07947346
Patent Number
7947346
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US Patent 07947346 Surface modification of silica in an aqueous environment
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Patent jurisdiction
Patent number
07947346
Date of patent
May 24, 2011
Patent application number
12203889
Date Filed
September 3, 2008
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