Fluorine-containing dispersants for aqueous paints and coating compositions

US5672673A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Stephan Kirchmeyer · Leverkusen, DE
• Jan Mazanek · Cologne, DE
• Karl-Heinz Kasler · Bensberg, DE

Key dates

• Filing date: Jun 17, 1996
• Grant date: Sep 30, 1997
• Expiry date: Jun 17, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D7/45
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A method for the preparation of water-soluble polyaddition compounds containing perfluoroalkyl groups by the reaction of a polyisocyanate component A) with a fluorine-containing alcohol component B), hydrophilic monohydric polyether alcohols C), isocyanate-reactive tertiary amines D) and optionally other isocyanate-reactive components E) at an NCO index of 80 to 200, the resulting polyaddition compounds and their use as dispersants for incorporating solid substances into aqueous paints and coating compositions.