Pigment preparation with perylene derivatives as dispersants

US5472494A · kind A · utility

Assignee

• BASF SE

Inventors

• Josef Hetzenegger · Birkenheide, DE
• Georg Henning · Ludwigshafen, DE
• Peter Erk · Bischofswerda, DE

Key dates

• Filing date: Jun 27, 1994
• Grant date: Dec 5, 1995
• Expiry date: Jun 27, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0041
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Pigment preparations contain PA0 (a) at least one organic pigment; PA0 (b) at least one perylene derivative of the general formula I ##STR1## where A is --O--, --CH.sub.2 -- or --NR.sup.1 --; PA1 B.sup.1 and B.sup.2 are independently of each other a chemical bond, --O--, --CH.sub.2 --, --NR.sup.2 --, --S--, --CO--, --SO.sub.2 -- or --SO.sub.2 --NH--; PA1 L.sup.1 and L.sup.2 are independently of each other a chemical bond, phenylene or C.sub.1 -C.sub.8 -alkylene; PA1 X is --SO.sub.3.sup..crclbar. Ka.sup..sym. ; PA1 Y is --CO.sub.2 Ka.sup..sym. ; PA1 Z is chlorine or bromine; PA1 m is from 0 to 4; PA1 n is 0 or 1 and (m+n) is from 1 to 4; and PA1 p is from 0 to 4; PA0 as dispersant; PA0 (c) if desired further customary pigment preparation additives.