Polyurethane thickeners and their use for thickening aqueous systems

US5594087A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Klaus K onig · Odenthal, DE
• Jan Mazanek · Cologne, DE
• J urgen Schwindt · Leverkusen, DE
• Manfred Dietrich · Leverkusen, DE
• Gerhard Klein · Monheim, DE

Key dates

• Filing date: Aug 4, 1994
• Grant date: Jan 14, 1997
• Expiry date: Aug 4, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L75/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Water soluble or water dispersible polyurethane, which are suitable as thickeners for aqueous systems and prepared from a selected alcohol component a) based on a hydrophilic/hydrophobic mixture of alcohols and an isocyanate component b), and to their use for thickening aqueous systems.