Primer for adhesive tapes

US10513634B2 · kind B2 · utility

Assignee

• tesa SE · DE

Inventors

• Sebastian Dietze · Hamburg, DE
• Kai Ellringmann · Hamburg, DE
• Marco Kupsky · Quickborn, DE
• Duc Hung NGUYEN · Hamburg, DE
• Uwe Schümann · Pinneberg, DE

Key dates

• Filing date: Aug 27, 2015
• Grant date: Dec 24, 2019
• Expiry date: Aug 27, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2463/003
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Primer for adhesive tape with improved adhesion promoting properties, comprising a mixture G, which is dissolved or dispersed in one or more solvents, consisting of at least one copolymer obtained by copolymerization of a monomer mixture comprising an amount of at least 90 wt % of the following monomers: vinylcaprolactam and/or vinylpyrrolidone; one or more of the monomers a) and/or b): a) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl group of the alcohol, b) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl group, at least one chlorinated polyolefin, and at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates.