Pressure-sensitive adhesive with dual crosslinking mechanism

US7521487B2 · kind B2 · utility

Assignee

• tesa AG · DE

Inventors

• Sven Hansen · Hamburg, DE
• Marc Husemann · Hamburg, DE
• Kay Brandes · Otter, DE
• Stephan Zollner · Hamburg, DE

Key dates

• Filing date: Apr 29, 2005
• Grant date: Apr 21, 2009
• Expiry date: Mar 3, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S522/905
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing a polyacrylate-based shaped article, a polyacrylate being polymerized by a conventional method, wherein the polyacrylate comprises copolymerized comonomers having thermally crosslinkable groups and comonomers having attached photoinitiators, and the polyacrylate is crosslinked thermally in a first step and by irradiation with UV light in a second step.