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. 16, 2003
Filed:
Jun. 19, 2002
Yan-Fei Shen, Canton, MA (US);
Richard Oryszczak, Palatine, IL (US);
Angel L. Carrillo, Wellesley, MA (US);
Other;
Abstract
Disclosed are enhanced efficacy aluminum-zirconium chlorohydrate antiperspirant salts having a metal (Al+Zr) to chloride ratio of about 0.9 to about 1.2, preferably about 0.9 to about 1.1, most preferably about 0.9 to about 1.0. To achieve the highest possible antiperspirant efficacy, these salts are made with or include a zirconium hydroxychloride of the formula Zr(OH) Cl wherein b is about 2.8 to about 4.0, preferably about 3.2 to about 4.0, so that the Zr:Cl ratio in said zirconium hydroxychloride is about 0.36 to about 0.25, preferably about 0.31 to about 0.25. The present invention also embraces methods of making such antiperspirant salts and aqueous solutions of such antiperspirant salts. The present invention further embraces topical compositions comprising a dermatologically acceptable carrier and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt as described above.