Pigment preparation

US6638353B1 · kind B1 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Thomas Rathschlag · Weilburg, DE
• Carsten Griessmann · Groß-Zimmern, DE

Key dates

• Filing date: Apr 1, 2002
• Grant date: Oct 28, 2003
• Expiry date: Apr 1, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/037
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a non-dusting homogeneous pigment preparation notable in that it comprises at least 40% by weight of one or more effect pigments, from 0.5 to 50% by weight of water and/or an organic solvent or solvent mixture and from 0.5 to 59.5% by weight of a styrene-modified maleate resin having an acid number >90 mg KOH/g, and to its use in particular to produce dry preparations.