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. 01, 2005
Filed:
Jul. 29, 2002
Dahshen Yu, Randolph, NJ (US);
Rita M. Parikh, Paramus, NJ (US);
Charles Pozzi, Denville, NJ (US);
Bruce Kohut, Toms River, NJ (US);
Dahshen Yu, Randolph, NJ (US);
Rita M. Parikh, Paramus, NJ (US);
Charles Pozzi, Denville, NJ (US);
Bruce Kohut, Toms River, NJ (US);
Warner-Lambert Company, Morris Plains, NJ (US);
Abstract
A method for reducing an abrasivity of a dentifrice composition containing an abrasive, includes incorporating into the dentifrice composition a zinc salt in an amount sufficient to reduce a dentinal abrasivity of the composition by at least 10% and reduce an enamel abrasivity of the dentifrice composition by at least 10%. The method provides an improved dentifrice composition, which is at least 90% as effective at stain removal as the original dentifrice composition. Suitable zinc salts include, e.g., zinc citrate, zinc chloride, zinc acetate, zinc oxide and zinc sulfate. Suitable abrasives include, e.g., silica, alumina and alkali metal meta-phosphates.