Aqueous dispersions of urethane-modified polyesters, a process for their production and their use for the production of lacquers

US4331573A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karl Zabrocki · Waldbröl, DE
• Ludwig Bottenbruch · Krefeld, DE
• Franz Weider · Leverkusen, DE

Key dates

• Filing date: Jul 9, 1980
• Grant date: May 25, 1982
• Expiry date: Jul 9, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2375/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Melts of Urethane-modified oligoesters and 1 or polyesters can easily be dispersed in an aqueous phase in the presence of a dispersing agent combination comprising a polyether-modified polyester and a non-ionic dispersing agent having a particular HLB value.