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:
Sep. 10, 2024
Filed:
Jun. 30, 2020
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Andrew Savaides, Stamford, CT (US);
Rushi Tasker, Stamford, CT (US);
Mona Vaidya, Stamford, CT (US);
Jasmine Martich, Stamford, CT (US);
HENKEL AG & CO. KGAA, , DE;
Abstract
The invention includes methods of increasing the volume of a fiber by applying to the fiber a chitosan cross linked with or complexed to an aldehyde-bearing compound, and a polyanion. The fiber is then dried forming a chitosan polyelectrolyte complex on the hair that increases the dimension of the fiber. The fiber may be wet prior to application and may be a mammalian hair. Also included are method of semi-permanently altering the structure of hair that includes topically applying to hair a chitosan cross linked with or complexed to an aldehyde-bearing compound, and a polyanion. Also contemplated within the scope of the invention is a hair care polyelectrolyte complex that includes a chitosan cross linked with or complexed to an aldehyde-bearing compound, and a polyanion. Systems for hair treatment are also encompassed within the scope of the invention and include at least two formulations: a first formulation comprising a chitosan cross linked with or complexed to an aldehyde-bearing compound, and a second formulation comprising a polyanion. Such systems may be included in hair care kits.