Patent · US Active

Pigment compositions with modified ATRP copolymer dispersants

US7723425B2 · kind B2 · utility

1Cited by

4References

11Claims

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	Mar 21, 2006
Grant date	May 25, 2010
Priority date	—
Expiry date	Mar 25, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2438/01
WIPO fieldMacromolecular chemistry, polymers
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 prepared by atom transfer radical polymerisation (ATRP) and 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.