Binders for aqueous stoving lacquers based on polyesters and a process for the production thereof

US4456729A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rolf Dhein · Krefeld, DE
• Lothar Backer · Gräfenhainichen, DE
• Jochen Schoeps · Krefeld, DE

Key dates

• Filing date: Dec 10, 1982
• Grant date: Jun 26, 1984
• Expiry date: Dec 10, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D167/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

By adding reaction products of from 4- to 6-hydric alcohols and dicarboxylic acid anhydrides, it is possible to render originally water-insoluble polyesters dilutable with water. Stoving lacquers based on such systems give highly weather-resistant lacquer films.