Coating compositions

US4379909A · kind A · utility

Assignees

• Hermann Wiederhold GmbH · DE
• IMPERIAL CHEMICAL INDUSTRIES LIMITED · GB

Inventors

• Hans R. Falkenburg · Haan, DE
• Siegfried Krause · Ostelsheim, DE
• Robert C. McGuiness · Erkrath, DE

Key dates

• Filing date: Oct 26, 1981
• Grant date: Apr 12, 1983
• Expiry date: Oct 26, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D163/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Coating lacquers, particularly useful for coating cans, comprise an epoxide resin, a polycarboxylic acid anhydride curing agent, an organic solvent and an accelerator derived from melamine, benzoguanamine or glycoluril. Particularly useful accelerators are the formaldehyde condensates of these materials and their ethers. The coatings are non-toxic and are cured at temperatures lower than conventional.