Patent · US Expired

Peptide-based body surface coloring reagents

US7285264B2 · kind B2 · utility

25Cited by

24References

17Claims

0Family size

Assignee

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

Inventors

John P. O'Brien · Columbus, US
Hong Wang · Kennett Square, US
Ying Wu · Wallingford, US

Key dates

Filing date	Mar 27, 2006
Grant date	Oct 23, 2007
Priority date	—
Expiry date	Mar 27, 2026

Classification

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

Abstract

Peptides have been identified that bind with high affinity to body surfaces, such as, hair, skin, nails, teeth, gums, and oral cavity surfaces. Diblock and triblock peptide-based body surface coloring reagents formed by coupling a body surface binding peptide to a pigment binding peptide, either directly or through a spacer, are described. The peptide-based body surface coloring reagents may be used in conjunction with pigments to color body surfaces.

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