Double-sided adhesive tape comprising a first outer, pressure-sensitive adhesive side, and a second outer side which can be thermally-activated

US9493680B2 · kind B2 · utility

Assignee

• tesa SE · DE

Inventors

• Uwe Schümann · Pinneberg, DE
• Kirstin Weiland · Hamburg, DE
• Hermann Neuhaus-Steinmetz · Ahrensburg, DE
• Dennis Perlbach · Neu Wulmstorf, DE
• Arne Koops · Mölln, DE
• Thomas Schubert · Novi, US
• Olga Kirpicenok · Hamburg, DE
• Sarah Reich · Hamburg, DE

Key dates

• Filing date: May 4, 2012
• Grant date: Nov 15, 2016
• Expiry date: May 4, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2826
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A double-sided adhesive tape useful for adhesively bonding articles composed of thermoplastic polymer, of EPDM, or of another rubberlike material is provided, having a first outer, pressure-sensitive adhesive side and a second outer, thermally-activatable side, and that comprises an at least dual-layered product construction consisting of layers A and B, layer A being a pressure-sensitive adhesive layer that is chemically cross-linked by thermal initiation, or being a pressure-sensitively adhesive carrier layer chemically cross-linked by thermal initiation, layer B being a thermoplastic synthetic material-based layer, layers A and B being in direct contact with one another, and the surface of layer A, which is in direct contact with layer B, having been corona or plasma pre-treated. The corona or plasma pre-treatment takes place in an atmosphere of nitrogen, carbon dioxide or a noble gas, or a mixture of at least two of these gases.