Patent · US Active

Stable pigment dispersions

US7674843B2 · kind B2 · utility

1Cited by

6References

21Claims

0Family size

Assignee

AGFA GRAPHICS NV · BE

Inventors

Frank Louwet · Diepenbeek, BE
Geert Deroover · Lier, BE
Bert Groenendaal · Sinaai, BE
Markus Hartenstein · Herxheim, DE
Joachim Storsberg · Wörrstadt, DE

Key dates

Filing date	Jan 26, 2006
Grant date	Mar 9, 2010
Priority date	—
Expiry date	Oct 17, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31855
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A pigment dispersion includes a pigment with at least one carboxylic acid group and a block copolymer including aromatic monomers having at least one carboxylic acid group or a salt thereof and aromatic monomers having at least one sulfonic acid group or a salt thereof. The pigment dispersions can be used for manufacturing inkjet inks and for the coating of colored layers.

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