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. 17, 2015
Filed:
Nov. 14, 2011
Peter Jerome Cowdery-corvan, Webster, NY (US);
Lyn Marie Irving, Penfield, NY (US);
Richard Kenneth Hailstone, North Chili, NY (US);
Kenneth Joseph Reed, Brighton, NY (US);
Thomas Dale Allston, Lima, NY (US);
Carly Louise Augustyn, Spencerport, NY (US);
Peter Jerome Cowdery-Corvan, Webster, NY (US);
Lyn Marie Irving, Penfield, NY (US);
Richard Kenneth Hailstone, North Chili, NY (US);
Kenneth Joseph Reed, Brighton, NY (US);
Thomas Dale Allston, Lima, NY (US);
Carly Louise Augustyn, Spencerport, NY (US);
Other;
Abstract
A method of making cerium-containing metal oxide nanoparticles in non-polar solvent eliminates the need for solvent shifting steps. The direct synthesis method involves: (a) forming a reaction mixture of a source of cerous ion and a carboxylic acid, and optionally, a hydrocarbon solvent; and optionally further comprises a non-cerous metal ion; (b) heating the reaction mixture to oxidize cerous ion to ceric ion; and (c) recovering a nanoparticle of either cerium oxide or a mixed metal oxide comprising cerium. The cerium-containing oxide nanoparticles thus obtained have cubic fluorite crystal structure and a geometric diameter in the range of about 1 nanometer to about 20 nanometers. Dispersions of cerium-containing oxide nanoparticles prepared by this method can be used as a component of a fuel or lubricant additive.