Solvent-free polyrethane-polymer-hybrid-dispersion and use thereof

US6787596B1 · kind B1 · utility

Assignee

• SKW Bauchemie GmbH · DE

Inventors

• Alois Maier · Waldkraiburg, DE
• Stefan Ingrisch · Seebruck, DE
• Herbert Winkelmann · Garching bei München, DE
• Franz Wolfertstetter · Palling, DE
• Alfred Kern · Schneeberg, DE
• Werner Temme · Meßkirch, DE
• Ralph Bergs · Gottmadingen, DE

Key dates

• Filing date: Apr 11, 2002
• Grant date: Sep 7, 2004
• Expiry date: Dec 29, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D151/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A solvent-free polyurethane-polymer hybrid dispersion having a high solids content of polymer or formulation constituents is described, which is obtainable bya) the multistage preparation of a polyurethane base dispersion andb) by the subsequent preparation of a polyurethane-polymer hybrid dispersion.This polyurethane-polymer hybrid dispersion not only is distinguished by complete freedom from solvents and high solids contents in combination with low viscosity and a technically simple preparation process but also has excellent mechanical properties and, owing to the low hydrophilicity, high water resistance. The polyurethane-polymer hybrid dispersion proposed according to the invention can be used in an outstanding manner in formulations for sport floor coverings, said dispersion being suitable in particular as a binder for resilient coats, as a spray or leveling coating on resilient or rigid substrates, as an adhesion promoter or primer, as filling compounds for sealing pores, as adhesive for the adhesive bonding of prefabricated resilient layers or for the sealing of sport floor coverings.