METHOD FOR PRODUCING SOL OF SURFACE-MODIFIED SILICA PARTICLES DISPERSED IN ORGANIC SOLVENT

Title:

METHOD FOR PRODUCING SOL OF SURFACE-MODIFIED SILICA PARTICLES DISPERSED IN ORGANIC SOLVENT

Document Type and Number:

WIPO Patent Application WO/2021/199870

Kind Code:

A1

Abstract:

[Problem] To provide a method for producing a sol of surface-modified silica particles dispersed in an organic solvent which has excellent storage stability. [Solution] A method for producing a sol of surface-modified silica particles dispersed in an organic solvent, the method comprising the following steps (A) to (C). (A) A step for mixing a sol of surface-unmodified silica particles dispersed in an organic solvent with a silane coupling agent. (B) A step for adding a basic compound to the product obtained in the step (A). (C) A step for bringing a cation exchange resin into contact with the product obtained in the step (B).

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Inventors:

IMAI SHOTA (JP)
ISHIDA TOMOHISA (JP)

Application Number:

PCT/JP2021/008213

Publication Date:

October 07, 2021

Filing Date:

March 03, 2021

Export Citation:

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Assignee:

NISSAN CHEMICAL CORP (JP)

International Classes:

C01B33/14

Domestic Patent References:

WO2010058754A1

2010-05-27

Foreign References:

JPH05269365A	1993-10-19
JP2019182688A	2019-10-24

Attorney, Agent or Firm:

HANABUSA PATENT & TRADEMARK OFFICE (JP)

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