Pressure-sensitive adhesive tapes for gluing windows, in particular in mobile devices

US9260631B2 · kind B2 · utility

Assignee

• tesa SE · DE

Inventors

• Marc Husemann · Hamburg, DE
• Kai Ellringmann · Hamburg, DE
• Marco Kupsky · Quickborn, DE
• Claus Meyer · Hamburg, DE

Key dates

• Filing date: Oct 27, 2011
• Grant date: Feb 16, 2016
• Expiry date: Oct 27, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2848
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a double-sided adhesive tape, comprising a carrier layer and two exterior pressure-sensitive adhesive compound layers, wherein at least one of the pressure-sensitive adhesive compounds is the crosslinking product composed of a polymer compound which comprises at least the following components: A) a polymer component (component A) comprising 88 to 100 wt % of one or more polyacrylates (component A1) composed of at least: a) 1 to 15 wt %, relative to component A1, of one or more monomers having at least one ethylenically unsaturated bond, each being selected such that the glass transition temperatures TG of the corresponding homopolymers composed of the respective monomers are at least 0° C. (monomers a), wherein at least some of the monomers (a) still comprise at least one carboxylic acid (monomers a1), b) 85 to 99 wt %, relative to component A1, of one or more monomers from the group of acrylic acid esters and methacrylic acid esters, each being selected such that the glass transition temperatures TG of the corresponding homopolymers composed of the respective monomers are not higher than −30° C. (monomers b), B) at least one covalently cross-linking bifunc…