Dyed-hair-binding peptides and peptide-based hair reagents for personal care

US8263056B2 · kind B2 · utility

Assignees

• E.I. DU PONT DE NEMOURS AND COMPANY · US
• Affinergy, LLC · US

Inventors

• R. Edward Benson · Durham, US
• Stephen R. Fahnestock · Wilmington, US
• Paul T. Hamilton · Cary, US
• John P. O'Brien · Columbus, US
• Hong Wang · Kennett Square, US

Key dates

• Filing date: Aug 26, 2008
• Grant date: Sep 11, 2012
• Expiry date: May 10, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/57
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Peptides have been identified that bind with high affinity to dyed hair. Peptide-based hair reagents formed by coupling a dyed-hair-binding peptide to a benefit agent are described. The peptide-based hair reagents include peptide-based hair conditioners and hair colorants. The peptide-based hair conditioners and hair colorants are comprised of a dyed-hair-binding peptide coupled to a hair conditioning agent or a coloring agent, respectively. The peptide-based hair reagents or the dyed-hair-binding peptides may also be used as a protective sealant to improve color retention of dyed hair.