Title:
SILICA PARTICLE LIQUID DISPERSION AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/135585
Kind Code:
A1
Abstract:
[Problem] Provided is a method for efficiently producing a liquid dispersion containing irregular-shaped silica particles by inhibiting generation of unreacted materials such as oligomers which do not grow into desired silica particles. [Solution] This method is for producing a liquid dispersion containing irregular-shaped silica particles each including two or more primary particles linked together, by simultaneously adding liquid A containing a silane alkoxide and liquid B containing an alkali catalyst and water to liquid I substantially consisting of an organic solvent and thereby causing the silane alkoxide to undergo hydrolysis and polycondensation, wherein the time period from the beginning of the addition until the silica concentration of the reaction system at the end of the addition reaches 70% is 20% or less of the full reaction time period.
Inventors:
EGAMI MIKI (JP)
KUMAZAWA MITSUAKI (JP)
ARAKANE HIROTADA (JP)
MURAGUCHI RYO (JP)
HIRAI TOSHIHARU (JP)
KUMAZAWA MITSUAKI (JP)
ARAKANE HIROTADA (JP)
MURAGUCHI RYO (JP)
HIRAI TOSHIHARU (JP)
Application Number:
PCT/JP2018/001403
Publication Date:
July 26, 2018
Filing Date:
January 18, 2018
Export Citation:
Assignee:
JGC CATALYSTS & CHEMICALS LTD (JP)
International Classes:
C01B33/145; B24B37/00; C09K3/14; H01L21/304
Foreign References:
| JP2009149493A | 2009-07-09 | |||
| JP2003133267A | 2003-05-09 | |||
| JPH1160232A | 1999-03-02 |
Attorney, Agent or Firm:
TAKATSU Kazuya (JP)
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