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:
Dec. 31, 2019
Filed:
Jan. 12, 2016
Applicant:
Cerion, Llc, Rochester, NY (US);
Inventor:
David Wallace Sandford, Rochester, NY (US);
Assignee:
Cerion, LLC, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 51/04 (2006.01); B01J 23/75 (2006.01); B01J 35/00 (2006.01); B01J 37/04 (2006.01);
U.S. Cl.
CPC ...
C01G 51/04 (2013.01); B01J 23/75 (2013.01); B01J 35/0013 (2013.01); B01J 37/04 (2013.01); C01P 2002/72 (2013.01); C01P 2004/64 (2013.01);
Abstract
A method of making stable aqueous dispersions and concentrates of cobalt oxide nanoparticles is described, wherein a reaction mixture comprising cobalt(II) ion, a carboxylic acid, a base, an oxidant and water is formed, and in which cobalt oxide nanoparticles are formed. Cobalt oxide nanoparticles ranging in average crystallite size from about 4 nm to 15 nm are described. The cobalt oxide nanoparticles may be isolated and redispersed to form stable, homogeneous, aqueous dispersions of cobalt oxide nanoparticles containing from about 1 to about 20 weight percent cobalt oxide.