Aqueous polyester dispersions

US4321170A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karl Zabrocki · Waldbröl, DE
• Rolf Dhein · Krefeld, DE
• Franz Weider · Leverkusen, DE
• Klaus Hohne · Leverkusen, DE
• Kurt Schorn · Leverkusen, DE

Key dates

• Filing date: Nov 14, 1980
• Grant date: Mar 23, 1982
• Expiry date: Nov 14, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D167/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Aqueous dispersions of polyesters or alkyd resins for coatings are prepared by co-condensation of 10 to 100 mol-%, calculated on the sum of polybasic carboxylic acids, of polybasic acids whose carboxyl groups are attached to secondary and/or tertiary carbon atoms. Said dispersions are excellently stable and yield coatings with outstanding properties.