Pigment preparation

US6398862B1 · kind B1 · utility

Assignee

• MERCK PATENT GESELLSCHAFT MIT BESHRANK TER HAFTUNG · DE

Inventors

• Wolfgang Hechler · Herbstein, DE
• Gerhard Herget · Ober-Ramstadt, DE
• Brigitte Husseini · Darmstadt, DE

Key dates

• Filing date: Aug 30, 1999
• Grant date: Jun 4, 2002
• Expiry date: Aug 30, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09C2200/407
• 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 pearl lustre pigments.