Water-resistant adhesives, their preparation and use

US7585915B2 · kind B2 · utility

Assignee

• Celanese Emulsions GmbH · DE

Inventors

• Martin Jakob · Kelkheim, DE
• Werner Prass · Mainz, DE

Key dates

• Filing date: Jul 26, 2004
• Grant date: Sep 8, 2009
• Expiry date: Aug 17, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J131/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A description is given of an aqueous dispersion adhesive based on an aqueous polymer dispersion comprising at least one emulsion polymer with small amounts of crosslinkable N-methylol groups, at least one protective colloid, and at least one crosslinking agent containing N-methylol groups, of which at least one is etherified with an alkanol, said crosslinking agent being selected from the group consisting of hydroxymethylated cyclic ethyleneureas, hydroxymethylated cyclic propyleneureas, hydroxymethylated bicyclic glyoxal diureas, hydroxymethylated bicyclic malonaldehyde diureas or combinations thereof.The aqueous dispersion adhesive can be employed in particular for adhesively bonding porous and semiporous substrates.