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:
Jan. 23, 2001
Filed:
Apr. 28, 1998
Thomas Allen Hutchins, Cincinnati, OH (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
Disclosed are anhydrous aerosol hairspray compositions which comprise (a) from about 0.1% to about 10% by weight of a silicone-grafted polycarboxylic acid copolymer having a weight average molecular weight of from about 10,000 to about 300,000, wherein the silicone-grafted polycarboxylic acid copolymer has a vinyl polymeric backbone, and a polysiloxane macromer grafted to the backbone wherein the polysiloxane macromer has a weight average molecular weight of from about 500 to about 50,000; (b) a neutralizing system comprising a combination of an organic and inorganic base, wherein the organic base is at a level sufficient to neutralize from about 25% to about 80% of the acid groups on the silicone-grafted copolymer while the inorganic base is at a level sufficient to neutralize from about 0.5% to about 20% of the acid groups on the silicone-grafted copolymer; (c) from about 5% to about 50% by weight of a nonhydrocarbon propellant that is substantially free of hydrocarbon propellants; and (d) the balance comprising a carrier suitable for application to hair. The anhydrous aerosol hairspray compositions defined herein do not weep or foam from the hairspray container, provide effective style retention, hair conditioning benefits, and do not feel unduly sticky or tacky to the touch.