Pasty pigment formulations, production and use thereof

US4859728A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Manfred Schneider · Lichtenfels, DE
• Ulrich Ott · Hofheim, DE
• Alexander Sieber · Frankfurt am Main, DE
• Manfred Zimmermann · Monheim, DE

Key dates

• Filing date: Mar 3, 1988
• Grant date: Aug 22, 1989
• Expiry date: Mar 3, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D17/003
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

There is a demand for arylpararosanililinesulfonic acid pigments which, even when the pigment content is relatively low, produce on dilution with customary printing varnishes a printing ink having satisfactory rheological properties. The invention relates to such pasty pigment formulations containing PA1 (a) 5 to 50% by weight of an arylpararosanilinesulfonic acid pigment, PA1 (b) a long-oil alkyd resin having an oil content of 70-80% by weight whose oil content is based on the reaction with a drying, semidrying or nondrying oil or with a mixture of a plurality of these oils or with corresponding fatty acids whose dicarboxylic acid compontent is a mixture of isophthalic and orthophthalic acid, a small proportion of one or more .alpha.,.beta.-unsaturated dicarboxylic acids and, possibly, anhydrides thereof and whose polyalcohol component contains a mixture of glycerol and pentaerythritol, PA1 (c) a hydrocarbon resin having an average molecular weight within the range from 600 to 1700, the amount of which is 1-1.5 times that of alkyd resin b, PA1 (d) a phenolic resin modified colophony resin or a cyclized rubber resin or combinations of the two resins and also PA1 (e) mineral oil. Th…