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:
Feb. 01, 2022
Filed:
Oct. 24, 2014
Colgate-palmolive Company, New York, NY (US);
Stanislav Jaracz, Somerset, NJ (US);
Colgate-Palmolive Company, New York, NY (US);
Abstract
A method of preparing a zinc citrate-containing oral care composition, the method comprising: (a) adding zinc oxide to a solution of citric acid in a solvent to form a suspension; (b) agitating the suspension until a clear solution is obtained; and (c) adding an additional oral care ingredient to the solution obtained in (b). Also, a method of preparing a zinc citrate-containing oral care composition, the method comprising: (a) adding citric acid to a suspension of zinc oxide in a solvent; (b) agitating the suspension until a clear solution is obtained; and (c) adding an additional oral care ingredient to the solution obtained in (b). In both methods, steps (a) and (b) are carried out at a temperature of from 10° C. to 50° C. and the molar ratio of zinc oxide to citric acid in step (a) is about 3:2.