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, 1996
Filed:
Jun. 01, 1994
Applicant:
Inventors:
David T Callaghan, Quincy, MA (US);
Alan M Phipps, Framingham, MA (US);
Stephen J Provancal, Addison, IL (US);
Assignee:
The Gillette Company, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C01G / ; C01F / ;
U.S. Cl.
CPC ...
424617 ; 25218233 ; 25218235 ; 423608 ; 423625 ; 424 65 ; 424 66 ; 424 68 ; 424600 ;
Abstract
A composition of zirconyl hydroxy chloride and aluminum chlorhydroxide in stable solid form having improved antiperspirant efficacy when dissolved in water is made by heating a 2-20% by weight aqueous solution containing at least the aluminum chlorhydroxide component of the composition at a temperature of at least 50.degree. C. until the ratio of the height of peak 4 at Kd=0.7 to that of peak 3 at Kd=0.5 as measured by gel permeation chromatography on cross-linked dextran is at least 2:1, then subjecting the solution to rapid drying to solid form.