Pigment layer and method of permanently scribing a substrate by means of high-energy radiation

US7939164B2 · kind B2 · utility

Assignee

• tesa SE · DE

Inventors

• Arne Koops · Mölln, DE
• Sven Reiter · Hamburg, DE
• Jochen Stähr · Hannover, DE

Key dates

• Filing date: Jan 8, 2009
• Grant date: May 10, 2011
• Expiry date: Jan 8, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/28
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Pigment layer intended particularly for the permanent marking of glass, based on a polymer matrix which reacts predominantly with pulverization to a high-energy beam, more particularly to laser irradiation, comprising at least one titanium donor and a carbon donor which provides free carbon under energy irradiation.