Method for connecting two fiber-reinforced plastic components

US10696872B2 · kind B2 · utility

Assignee

• tesa SE · DE

Inventors

• Stephan Bernt · Hamburg, DE
• Benjamin Pütz · Neuss, DE

Key dates

• Filing date: Sep 7, 2016
• Grant date: Jun 30, 2020
• Expiry date: Oct 25, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2433/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to an adhesive tape which can be used in particular in a method for connecting two fiber-reinforced plastic components, comprising a carrier material made of polyethylene, wherein a polyacrylate-based self-adhesive compound is applied to one side of the carrier material, said adhesive compound can be reduced to the following reactant mixture containing monomers having the following composition: A1) acrylic acid ester, and/or methacrylic acid ester of the following formula CH2═CH(R1)(COOR2), wherein R1=H or CH3 and R2 is an alkyl chain with 1 to 14 carbon atoms at a proportion of between 65 to 98 wt. %, A2) acrylates and/or methacrylates whose alcohol component contains at least one primary hydroxyl- or carboxyl-group, and/or with acrylate-copolymerizable vinyl compounds containing the at least one primary hydroxyl or carboxyl group at a proportion of between 1 to 20 wt. %, A3) multi-functional isocyanate cross-linker which blocks with thermally reversible protective groups at a proportion of between 1-10 wt. %, A4) and, if the proportions of A1), A2) and A3) do not add up to 100 wt. %, olefinically unsaturated monomers having functional groups, with a proporti…