Aqueous adhesive dispersions and the use thereof in the production of multi-layered paper

US6706145B2 · kind B2 · utility

Assignee

• Ahlstrom Corporation · FI

Inventors

• Joachim Werres · Drebber, DE
• Bernd Reinhardt · Osnabrück, DE
• Klaus Rienaecker · Osnabrück, DE

Key dates

• Filing date: Jan 3, 2001
• Grant date: Mar 16, 2004
• Expiry date: Jan 3, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1097
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An aqueous adhesive dispersion comprising an adhesive polymer in dispersed form, an anionic or cationic polyelectrolyte, and optionally at least one polyalkylene glycol having a molar mass of 200 to 100,000 g/mol, and other additives; and a process for producing multilayered paper or a material using the aqueous adhesive dispersion.