Patent · US Active

Modified colorants and uses of the same

US7964178B2 · kind B2 · utility

2Cited by

15References

22Claims

0Family size

Assignee

Sensient Colors LLC · US

Inventors

Glenn A. Gutkowski · Rahway, US
William F. Thys · Elmwood Park, US

Key dates

Filing date	Jan 25, 2006
Grant date	Jun 21, 2011
Priority date	—
Expiry date	Jul 16, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C3/08
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Modified colorants are made from a modifying agent, such as platelet alumina, and a colorant. The colorant may be fixed to the surface of the modifying agent, optionally with a surface treatment. The colorant may not completely coat the surface of the modifying agent, and the edge of the modifying agent may be substantially free of colorant. The modified colorants may be used in cosmetic products.

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