Patent · US Active

Peptide-based tooth whitening reagents

US8481678B2 · kind B2 · utility

3Cited by

15References

9Claims

0Family size

Assignee

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

Inventors

Douglas Robert Anton · Wilmington, US
Scott Cunningham · Chadds Ford, US
Stephen R. Fahnestock · Wilmington, US
Kari A. Fosser · Folsom, US
Hong Wang · Kennett Square, US

Key dates

Filing date	Feb 2, 2010
Grant date	Jul 9, 2013
Priority date	—
Expiry date	Nov 17, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/614
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Peptide-based reagents comprising at least one tooth surface-binding peptide for delivery of at least one polymer-coated white colorant to the surface of teeth are provided. The peptide-based reagent may comprise at least one tooth-binding peptide coupled to, either directly or through one or more spacers, a polymer-binding peptide capable of binding to the polymeric coating on a polymer-coated white colorant. Methods of delivering a polymer-coated white colorant to a tooth surface are also provided as well as oral care compositions comprising the present peptide-based reagents. The peptide-based reagents may be used in conjunction with at least one polymer-coated white colorant to improve the cosmetic appearance of teeth.

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