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:
Jun. 10, 1997
Filed:
Aug. 31, 1994
Colleen M Rocafort, Lake Hiawatha, NJ (US);
ISP Investments Inc., Wilmington, DE (US);
Abstract
This invention relates to a 0.5 to 7 wt. % solids hair fixative composition having superior moisture resistant hold and minimal tack duration which provides a stiff film on artificial or human hair and superior hair combability, which composition essentially contains a resin mixture of (a) a terpolymer derived from about 17 to about 30 wt. % N-vinyl pyrrolidone, from about 60 to about 80 wt. % N-vinyl caprolactam and from about 3 to about 6 wt. % di-C.sub.1 -C.sub.4 alkyl amino-C.sub.1 -C.sub.4 alkyl-acrylate or methacrylate having a number average molecular weight of between about 20,000 and about 200,000 and (b) a N-vinyl pyrrolidone/vinyl acetate copolymer having a number average molecular weight of between about 10,000 and about 100,000; combined in a weight ratio of 1.4-6:1 (a) to (b). In the present composition, the vinyl acetate moiety of the N-vinyl pyrrolidone/vinyl acetate copolymer interacts with resin (a) to reinforce stiffness and holding properties under conditions of extremely high humidity and materially lowers the duration of tackiness during drying.