Aqueous polyurethane dispersions

US5470907A · kind A · utility

Assignee

• BASF SE

Inventors

• Alexander Wallon · Schifferstadt, DE
• Gerhard Auchter · Bad Dürkheim, DE
• Ulrike Licht · Mannheim, DE
• Karl Haeberle · Speyer, DE
• Angelika Funhoff · Schriesheim, DE

Key dates

• Filing date: Jun 21, 1994
• Grant date: Nov 28, 1995
• Expiry date: Jun 21, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J175/04
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Aqueous polyurethane dispersions contain, at a pH of the dispersing medium of .gtoreq.6, an anionically stabilized polyurethane present in disperse form as well as an added polymer having acidic functions and intended for reducing the flow resistance.