Heat-resistant laser-inscribable film

US9206279B2 · kind B2 · utility

Assignee

• tesa SE · DE

Inventors

• Michael Siebert · Wedel, DE
• Philipp Preuβ · Neuenhaus, DE
• Jan Ellinger · Hamburg, DE
• Klaus Keite-Telgenbüscher · Hamburg, DE
• Stephan Zollner · Hamburg, DE

Key dates

• Filing date: Jul 31, 2012
• Grant date: Dec 8, 2015
• Expiry date: Nov 29, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31909
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Laser-inscribable film, comprising a contrast layer based on a cured acrylate coating composition and, arranged above the contrast layer, an engraving layer, where the cured acrylate coating composition is based on a composition comprising from 30 to 80% by weight of a trifunctional oligomer A, from 0 to 20% by weight of a trifunctional monomer B, from 1 to 30% by weight of a difunctional monomer C, and from 2 to 40% by weight of a colorant pigment.