Pressure sensitively adhesive polyacrylates

US6831114B2 · kind B2 · utility

Assignee

• tesa AG · DE

Inventors

• Marc Husemann · Hamburg, DE
• Stephan Zollner · Hamburg, DE

Key dates

• Filing date: Jun 12, 2002
• Grant date: Dec 14, 2004
• Expiry date: Sep 20, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S522/904
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for preparing UV crosslinkable acrylic pressure sensitive adhesives, which comprises reacting polyacrylates in the melt with UV-photoactive substances in a hotmelt process in a polymer-analogous reaction, the UV-photoactive substances being able to absorb radiation energy and transfer it to a reaction system.