Patent · US Expired

Azo pigment preparations for packaging gravure and flexographic printing

US7318863B2 · kind B2 · utility

0Cited by

12References

10Claims

0Family size

Assignee

Clariant Produkte (Deutschland) GmbH · DE

Inventors

Heinz-Gunter Bach · Berlin, DE
Ulrich Ott · Hofheim, DE
Rainer Winter · Oberursel, DE

Key dates

Filing date	Oct 5, 2004
Grant date	Jan 15, 2008
Priority date	—
Expiry date	Oct 5, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B68/444
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to an azo pigment preparation containing a) at least one azo pigment, b) a resin based on colophonium or modified colophonium with an acid value equal to or higher than 320 mg KOH/g, and c) an ammonium salt of a sulfonated diaryl yellow pigment.

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