Crosslinking of radiation-crosslinkable pressure-sensitive adhesive films

US6242504A · kind A · utility

Assignee

• BASF SE

Inventors

• Bernd Meyer-Roscher · Neustadt, DE
• Wolfgang Schrof · Neuleiningen, DE
• Dieter Urban · Speyer, DE
• Paul Geiss · Idar-Oberstein, DE
• Walter Brockmann · Kaiserslautern, DE

Key dates

• Filing date: Sep 21, 1998
• Grant date: Jun 5, 2001
• Expiry date: Sep 21, 2018

Classification

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

Abstract

A description is given of a method of crosslinking radiation-crosslinkable pressure-sensitive adhesive films by controlled-dose exposure to actinic radiation, which involves exposing the film surface to a regular or irregular radiation pattern made up of regions of different intensity. The method permits a more precise adjustment of the adhesion--in particular, the adhesion of flexible films on a substrate.