Method for producing organic solvent dispersion of titanium oxide particles
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United States of America Patent
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May 8, 2018
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Feb 23, 2016
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Feb 27, 2015
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Abstract
The invention provides a method for producing an organic solvent dispersion of titanium oxide particles in an organic solvent except methanol and ethanol, comprising:
- (a) a surface treating process for surface treating an alcohol dispersion of titanium oxide particles in at least one alcohol solvent selected from the group consisting of methanol and ethanol with a surface treating agent comprising a silane coupling agent and 12-hydroxystearic acid thereby surface treating the titanium oxide particles; and(b) a solvent replacing process for replacing the alcohol solvent that is a dispersion medium of the alcohol dispersion of titanium oxide particles by the organic solvent except methanol and ethanol,wherein the silane coupling agent has the general formula (I)(RO)n—Si—X4-n (I)wherein R is an alkyl group having carbon atoms of 1-4, n is 2 or 3, X is an alkyl, a fluoroalkyl, a vinyl or a (meth)acryloyloxyalkyl group.
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