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:
Apr. 28, 1998
Filed:
Dec. 20, 1996
Gerald John Guskey, Montgomery, OH (US);
Thomas Vincent Orr, Cincinnati, OH (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
Disclosed are anhydrous antiperspirant gel-solid sticks which comprise particulate antiperspirant active; a solid non-polymeric gellant that is substantially free of dibenzylidene alditol, inorganic thickening agents, organic polymeric gellants, amides and esters of N-acyl amino acid, or combinations thereof; an anhydrous liquid carrier that is substantially free of polar, water-immiscible, organic solvents, wherein the composition has a visible residue index of from about 11 to about 30 L-value, a product hardness of from about 500 to about 5,000 gram force, a rheology profile defined by a ratio of an elastic modulus (G') to a viscous modulus (G') of from about 0.1 to about 100. The refractive indices of the particulate antiperspirant active, the solid non-polymeric gellant, and the anhydrous liquid carrier are not matched. The compositions preferably comprise crystalline gellant particles having an average particle size of less than about 1 .mu.m and/or a particle morphology having an aspect ratio of greater than about 2. These compositions provide improved low residue performance, efficacy and aesthetics.