Pigment for laser marking

US8778494B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Gerhard Edler · Trebur, DE
• Helge Kniess · Roßdorf, DE
• Klaus Bernhardt · Groß-Umstadt, DE

Key dates

• Filing date: Feb 27, 2010
• Grant date: Jul 15, 2014
• Expiry date: Jun 29, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2998
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to an intrinsically markable laser pigment in the form of a reducible metal compound in the form of a preparation, and to the use thereof in inorganic systems and in organic polymers, in particular plastics, surface coatings, automobile paints, powder coatings, printing inks, paper coatings and papermaking stocks.