One-component laminating adhesive having silane cross-linking

US10066046B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Hans-Georg Kinzelmann · Pulheim, DE
• Pavel Gentschev · Bad Goisern, AT

Key dates

• Filing date: Jul 13, 2012
• Grant date: Sep 4, 2018
• Expiry date: Jul 13, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31938
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a crosslinkable one-component laminating adhesive containing 25 to 80 wt. % of polyester prepolymers, polyether prepolymers and/or polyurethane prepolymers, which have at least two cross-linkable alkoxysilane groups and have a molecular weight of 2000 to 30,000 g/mol, 75 to 19 wt. % of organic solvent having a boiling point up to 130° C., 1 to 20 wt. % of polymers which contain anhydride groups, and 0 to 15 wt. % of additives, wherein the viscosity of the adhesive is between 50 and 20,000 mPas (according to DIN ISO 2555), measured at 15 to 45° C.