Modified natural-resin acid-aldehyde adducts

US5708078A · kind A · utility

Assignee

• Vianova Resins AG · DE

Inventors

• Albert Bender · Mainz, DE
• Astrid Giencke · Hofheim, DE

Key dates

• Filing date: Oct 11, 1996
• Grant date: Jan 13, 1998
• Expiry date: Oct 11, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Modified natural-resin acid esters comprising units of compounds of each of the groups A) natural resins and natural-resin acids, B) aldehydes and aldehyde acetals, C) alcohols having at least two hydroxyl groups, D) metal salts and, if desired, of compounds of one or more of the groups E) .alpha.,.beta.-ethylenically unsaturated carboxylic acids and their anhydrides, F) fatty acids and fatty acid esters, G) ethylenically unsaturated hydrocarbon resins are suitable in pigment dispersions and pigment concentrates for printing inks. The natural-resin acid esters contain substantially no phenol or phenol-aldehyde condensation products.