The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2021
Filed:
Feb. 12, 2020
Applicant:
Fujimi Incorporated, Kiyosu, JP;
Inventors:
Assignee:
FUJIMI INCORPORATED, Kiyosu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/145 (2006.01); C08L 83/04 (2006.01); B01J 13/00 (2006.01);
U.S. Cl.
CPC ...
C01B 33/145 (2013.01); B01J 13/0026 (2013.01); C08L 83/04 (2013.01);
Abstract
[Problem] Provided is a method for producing a silica sol capable of providing consistent production of the silica sol having a uniform particle size of silica particles in any particle size of the silica particles. [Solution] A method for producing a silica sol is a method including a step of mixing liquid (A) containing an alkaline catalyst, water, and a first organic solvent with liquid (B) containing an alkoxysilane or its condensate and a second organic solvent, and liquid (C1) having a pH of 5.0 or higher and lower than 8.0 and containing water or liquid (C2) containing water and being free of an alkaline catalyst to make a reaction liquid.