Latently reactive polyurethane dispersion with activatable crosslinking

US8841369B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Axel Meyer · Frankfurt am Main, DE
• Maria Teresa Hechavarria Fonseca · Mannheim, DE
• Tina Schroeder-Grimonpont · Rheinzabern, DE
• Stefan Dahmen · Freinsheim, DE
• Christian Beil · Worms, DE
• Karl-Heinz Schumacher · Ludwigshafen, DE
• Thomas Abend · Sankt Gallen, CH

Key dates

• Filing date: Mar 30, 2012
• Grant date: Sep 23, 2014
• Expiry date: Jul 11, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C65/4865
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A description is given of an aqueous polymer dispersion comprising at least one polyurethane, dispersed in aqueous phase and having one or more uretdione groups, and at least one solid polyamine with a deactivated surface, said dispersion being useful as an adhesive, coating material or sealant or for producing adhesive, coating or sealing compositions. The compositions can be activated thermally or by electromagnetic radiation.