Process for preparing printing ink binders, and their use in printing inks

US4552592A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Albert Rudolphy · Wiesbaden, DE
• Gerhard Werner · Weinheim, DE

Key dates

• Filing date: Mar 29, 1984
• Grant date: Nov 12, 1985
• Expiry date: Mar 29, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Process for preparing printing ink binders based on reaction products of (a) natural resins, (b) other synthetic resins, (c) .alpha.,.beta.-olefinically unsaturated carboxylic acid units and (d) calcium compounds and, if appropriate, other compounds of metals of group II of the periodic system. The compounds (a) to (c) are reacted to give a product having an acid number of 75 to 150, which is then reacted with metal compounds in such a way that the acid number is reduced by at least one third. Unreacted metal compounds present in the resulting reaction product are then converted by means of acetic acid, via acetates, into salts of the resins. The resulting binders are used for preparing printing inks.