Coating compositions obtained by reacting amino carboxylic acids derivatives with polyisocyanates and compounds containing carboxylic groups to produce polymers containing hydantoin rings and amide groups

US4281095A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Willi Dunwald · Leverkusen, DE
• Jurgen Lewalter · Odenthal, DE
• Rudolf Merten · Leverkusen, DE
• Ludwig Rottmaier · Odenthal, DE
• Bernhard Schulte · Krefeld, DE
• Karl-Heinrich Meyer · Krefeld, DE

Key dates

• Filing date: Dec 5, 1979
• Grant date: Jul 28, 1981
• Expiry date: Dec 5, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G73/0616
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

In non-phenolic solvents soluble Polyamid-hydantoins optionally containing ester and/or imide and/or isocyanurate groups are obtained by reacting polyisocyanates with polyfunctional amino carboxylic acid derivatives and a compound containing at least a carboxylic group preferably in the presence of a non-phenolic solvent.