Pigment preparations

US5296531A · kind A · utility

Assignee

• BASF SE

Inventors

• Horst Belde · Ludwigshafen, DE
• Manfred Herrmann
• Franz Leppmeier · Stockach, DE
• Dietrich Lach

Key dates

• Filing date: Nov 23, 1992
• Grant date: Mar 22, 1994
• Expiry date: Nov 23, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C14C11/003
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Pigment preparations useful for pigmenting or delustering finishes for leather and leather substitutes consist essentially of pigments or delusterants or a mixture thereof, binders, water and if desired further customary dispersants and auxiliaries, the binders used being copolymers of PA0 A) from 40 to 80% by weight of at least one aromatic vinyl compound of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, methyl or ethyl and n is 1 or 2, PA0 B) from 20 to 60% by weight of acrylic acid or methacrylic acid or a mixture thereof, and PA0 C) from 0 to 10% by weight of further copolymerizable monomers, in the form of their salts.