METHOD FOR PRODUCING ORGANIC SOLVENT DISPERSION OF TITANIUM OXIDE PARTICLES

Title:

METHOD FOR PRODUCING ORGANIC SOLVENT DISPERSION OF TITANIUM OXIDE PARTICLES

Document Type and Number:

WIPO Patent Application WO/2016/136765

Kind Code:

A1

Abstract:

The present invention is a method for producing an organic solvent dispersion of titanium oxide particles by dispersing titanium oxide particles in an organic solvent other than methanol and ethanol, wherein the method includes: (a) a surface treatment step in which an alcohol dispersion of the titanium oxide particles, which is obtained by dispersing the titanium oxide particles in at least one alcohol solvent selected from methanol and ethanol, is treated with a surface treatment agent containing a silane coupling agent and 12-hydroxystearic acid; and (b) a solvent substitution step for substituting the abovementioned alcohol solvent, which is the dispersion medium in the surface-treated alcohol dispersion of titanium oxide particles, with an organic solvent other than the alcohol solvent; the silane coupling agent being represented by general formula (I) (RO)n-Si-X4-n…(I) (R is a C1-4 alkyl group, n is 2 or 3, and X is an alkyl group, fluorinated alkyl group, vinyl group, or (meth)acryloyloxyalkyl group).

Inventors:

MORITA TAKANORI (JP)
MIYATA ATSUSHI (JP)
ONISHI KASUMI (JP)

Application Number:

PCT/JP2016/055312

Publication Date:

September 01, 2016

Filing Date:

February 23, 2016

Export Citation:

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Assignee:

SAKAI CHEMICAL INDUSTRY CO (JP)

International Classes:

C01G23/047; C09C1/36; C09C3/08; C09C3/12; C09D17/00

Domestic Patent References:

WO2011052762A1	2011-05-05
WO2008010533A1	2008-01-24
WO2010095726A1	2010-08-26

Foreign References:

JP2012521442A

2012-09-13

Other References: