Double-sided adhesive tape having a first outer impact-adhesive side and a second outer side that can be heat activated

US9920223B2 · 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 15, 2013
• Grant date: Mar 20, 2018
• Expiry date: Jul 14, 2033

Classification

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

Abstract

A double-sided adhesive tape having a first outer impact-adhesive side and a second outer side that can be heat activated, comprising an at least two-layer product structure comprising the layers A and B. Layer A is an impact-adhesive layer chemically cross-linked by means of thermal initiation or an impact-adhesive carrier layer chemically cross-linked by means of thermal initiation. Layer B is a layer on the basis of a thermoplastic plastic. Layer A and layer B are in direct contact with each other, and the surface of layer B that is in direct contact with layer A has been corona- or plasma-pretreated. The double-sided adhesive tape is characterized in that the corona or plasma pretreatment is performed in an atmosphere comprising nitrogen, carbon dioxide, or a noble gas or a mixture of at least two of said gases.