Pigment preparation

US5618342A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Gerhard Herget · Ober-Ramstadt, DE
• Otto Stahlecker · Darmstadt, DE
• Manfred Kieser · Darmstadt, DE

Key dates

• Filing date: Jun 2, 1994
• Grant date: Apr 8, 1997
• Expiry date: Jun 2, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S106/03
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a non-dusting, homogeneous pigment preparation containing PA0 at least 70% by weight of one or more flaky pigments, PA0 1-30% by weight of water, PA0 0.1-20% by weight of a humectant, and PA0 less than 1.00% by weight of one or more preservatives.