Polyurethane-based binder system

US11365278B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Marcel Blodau · Krefeld, DE
• Andre te Poel · Willich, DE
• Claudia Meckel-Jonas · Dressendorf, DE

Key dates

• Filing date: Oct 24, 2017
• Grant date: Jun 21, 2022
• Expiry date: Oct 24, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2203/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a binder system which contains an isocyanate-terminated polyurethane prepolymer as the resin component and a polyol mixture as the curing agent, said polyol mixture containing at least one alkoxylated diamine. The invention also relates to the use of the binder system as an adhesive/sealing material, in particular as a laminating adhesive for food packaging.