Patent · US Expired

Pigment compositions with modified block copolymer dispersants

US6849679B2 · kind B2 · utility

7Cited by

0References

20Claims

0Family size

Assignee

Ciba Specialty Chemicals Corporation · US

Inventors

Clemens Auschra · Glückstadt, DE
Ernst Eckstein · Rheinfelden (Baden), DE
Marie-Odile Zink · Mulhouse, FR
Andreas Muhlebach · Belfaux, CH

Key dates

Filing date	Apr 23, 2002
Grant date	Feb 1, 2005
Priority date	—
Expiry date	Jul 10, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2438/02
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a composition containing modified block copolymer dispersants and dispersible inorganic or organic pigments. The block copolymers are modified with a salt forming group. The pigment composition is useful for preparing coating compositions, prints, images, inks or lacquers and other disperse systems.

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