Patent · US Expired

Organic formulations of pigment

US7255737B2 · kind B2 · utility

5Cited by

10References

37Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Ulrich Feldhues · Bensberg, DE
Frank Linke · Recklinghausen, DE
Ronald Gobel · Leverkusen, DE

Key dates

Filing date	Apr 19, 2005
Grant date	Aug 14, 2007
Priority date	—
Expiry date	Apr 19, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B67/0051
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention is directed to pigment formulations comprising at least one metal complex of an azo compound which in the form of its tautomeric structures generally conforms to the formula (I)The invention is further directed to processes for their production of the metal complexes and their use and particularly to color filters and the use of the color filters.

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