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. 15, 2018
Filed:
May. 14, 2014
Applicant:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Inventors:
Assignee:
NISSAN CHEMICAL INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 59/18 (2006.01); C08L 63/00 (2006.01); C08K 3/36 (2006.01); C08K 9/06 (2006.01); C01B 33/14 (2006.01); C01B 33/141 (2006.01); C01B 33/142 (2006.01); C01B 33/143 (2006.01); C01B 33/146 (2006.01); C01B 33/149 (2006.01); C01B 33/12 (2006.01); C01B 33/148 (2006.01); C01B 33/152 (2006.01);
U.S. Cl.
CPC ...
C08K 9/06 (2013.01); C01B 33/128 (2013.01); C01B 33/142 (2013.01); C01B 33/146 (2013.01); C01B 33/148 (2013.01); C01B 33/152 (2013.01); C08K 3/36 (2013.01);
Abstract
The silica sol of the invention contains silica particles having a mean primary particle size of 20 to 100 nm and which has a silica particle size/mean primary particle size ratio, determined through dynamic light scattering, of 3.0 or less, wherein the silica particles are surface-treated with an organic silane compound and have an α-ray emission rate of 0.005 counts/cm·hr or less and a moisture absorption coefficient, determined after allowing the silica particles to stand for 48 hours at 23° C. and a relative humidity of 50 RH %, of 0.5 mass % or lower.