Epoxy-based stoving enamels comprising carboxyl-functional alkylidenepolyphenols

US5708100A · kind A · utility

Assignee

• Vianova Resins AG · DE

Inventors

• Thomas Burkhart · Dahn, DE
• Wolfgang Hesse · Breckenheim, DE
• Paul Oberressl · Wiesbaden, DE

Key dates

• Filing date: May 20, 1996
• Grant date: Jan 13, 1998
• Expiry date: May 20, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L63/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Stoving enamels comprising epoxy resins and carboxyl-functional alkylidenepolyphenols in a quantity such that the carboxyl groups are present at least in equimolar quantities relative to the epoxide groups of the epoxy resins are suitable for coating the inside of metallic food containers and give, on the packaging, baked coating films which are essentially free from migratable constituents carrying epoxide groups.