Patent · US Expired

Peptide-based carbon nanotube hair colorants and their use in hair colorant and cosmetic compositions

US7452528B2 · kind B2 · utility

5Cited by

3References

23Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Xueying Huang · Hockessin, US
Robert K. Kobos · Wilmington, US
Gann Xu · Boothwyn, US

Key dates

Filing date	Mar 30, 2005
Grant date	Nov 18, 2008
Priority date	—
Expiry date	Dec 6, 2025

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/94
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Peptide-based carbon nanotube hair colorants are described. The hair colorants are prepared by coupling hair-binding peptides to the surface of chemically functionalized carbon nanotubes. Hair colorant and cosmetic compositions comprising the peptide-based carbon nanotube colorants are also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.