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:
Aug. 05, 2025
Filed:
Jan. 13, 2023
Nissan Chemical Corporation, Tokyo, JP;
Megumi Araki, Sodegaura, JP;
Naohiko Suemura, Sodegaura, JP;
Takeshi Nakada, Sodegaura, JP;
Hikaru Onishi, Sodegaura, JP;
Masatoshi Sugisawa, Sodegaura, JP;
Jiahao Liu, Sodegaura, JP;
NISSAN CHEMICAL CORPORATION, Tokyo, JP;
Abstract
A silica sol including silica particles exhibiting an average particle diameter distribution having at least two peaks, the silica sol being characterized in that the at least two peaks include the largest peak a, in a range of D50-D90, being present in a range of 35-200 nm, and the largest peak b, in a range of D10-D50, being present in a range from 5 nm to less than 35 nm, and that the surfaces of at least some of silica particles include an organic group bonded directly to a silicon atom via an Si—C bond, and an alkoxy group including a methoxy group or an ethoxy group, wherein the alkoxy group is bonded to the surface of the silica particles at a ratio of 0.6-3.0 alkoxy groups/nm.