Pigment preparation

US6972305B1 · kind B1 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Carsten Griessmann · Groß-Zimmern, DE
• Gerhard Herget · Ober-Ramstadt, DE
• Jochen Meyer · Creußen, DE
• Thomas Rathschlag · Weilburg, DE

Key dates

• Filing date: Jun 13, 2000
• Grant date: Dec 6, 2005
• Expiry date: Oct 11, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2991
• WIPO field: Macromolecular chemistry, polymers
• 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 polyacrylate resin having an acid number >90 mg KOH/g, and to its use to produce dry preparations.