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Title:
PRODUCTION OF SILICA PARTICLE
Document Type and Number:
Japanese Patent JPH05254822
Kind Code:
A
Abstract:

PURPOSE: To produce the subject silica particles having a uniform particle diameter by carrying out formation and growth of seed particles each at a temperature within an optimum range, in producing the silica particles by hydrolyzing an alkoxysilane in an alkaline reaction solution containing the above-mentioned alkoxysilane, water and alcohol.

CONSTITUTION: An alkaline reaction solution containing an alkoxysilane, water and alcohol is kept to ≥0°C and ≤20°C so as to hydrolyze the above-mentioned alkoxysilane. The resultant seed particles of ≥1μm particle diameter obtained by the above-mentioned hydrolysis are allowed to grow by raising the temperature of the solution containing the above-mentioned seed particles to >20°C and ≤50°C.


Inventors:
山田 都一
小原 実
斉内 和夫
三枝 武夫
土岐 元幸
周 徳元
大中 忠生
Application Number:
JP5338692A
Publication Date:
October 05, 1993
Filing Date:
March 12, 1992
Export Citation:
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Assignee:
積水フアインケミカル株式会社
International Classes:
C01B33/12; C01B33/18; C01B33/152; (IPC1-7): C01B33/18; C01B33/152
Attorney, Agent or Firm:
大西 浩



 
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