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:
Mar. 17, 2020
Filed:
Jul. 19, 2017
Applicant:
Sekisui Specialty Chemicals America, Llc, Dallas, TX (US);
Inventor:
David B. Wurm, Manvel, TX (US);
Assignee:
Sekisui Specialty Chemicals America, LLC, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01); A61K 8/81 (2006.01); A61Q 5/06 (2006.01);
U.S. Cl.
CPC ...
A61K 8/817 (2013.01); A61Q 5/065 (2013.01); A61Q 5/10 (2013.01); A61K 2800/4324 (2013.01);
Abstract
A method for dyeing hair includes applying a polyvinyl amine copolymer solution to the hair; and applying a hair dye composition to the hair. A hair dye composition includes an aqueous base fluid; a polyvinyl amine copolymer; and an anionic or cationic hair dye. A method of making a hair dye composition includes mixing a polyvinyl amine copolymer and an anionic or cationic hair dye into an aqueous base fluid.