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:
Mar. 09, 2021
Filed:
Sep. 05, 2017
Applicant:
Fujimi Incorporated, Kiyosu, JP;
Inventors:
Assignee:
FUJIMI INCORPORATED, Kiyosu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09G 1/02 (2006.01); C01B 33/146 (2006.01); C09K 3/14 (2006.01); H01L 21/304 (2006.01); B24B 37/00 (2012.01); H01L 21/321 (2006.01); H01L 21/306 (2006.01); H01L 21/3105 (2006.01); B24B 37/04 (2012.01);
U.S. Cl.
CPC ...
C09G 1/02 (2013.01); B24B 37/00 (2013.01); C01B 33/146 (2013.01); C09K 3/1436 (2013.01); H01L 21/304 (2013.01); B24B 37/044 (2013.01); H01L 21/30625 (2013.01); H01L 21/31055 (2013.01); H01L 21/3212 (2013.01);
Abstract
To provide a means capable of suppressing the generation of gelation at the time of or after the addition of a silane coupling agent in the production of a cationically modified silica including modifying a silica raw material with a silane coupling agent. The present invention is a method for producing a cationically modified silica, including: mixing a silica raw material having a negative zeta potential with a silane coupling agent having an amino group or a quaternary cationic group; and reacting the silica raw material with the silane coupling agent to obtain a cationically modified silica, in which