Polyester imide resins

US4145334A · kind A · utility

Assignee

• Dr. Beck + CO.AG · DE

Inventors

• Karl Schmidt · Hamburg, DE
• Ferdinand Hansch · Wedel, DE
• Hans-Malte Rombrecht · Hamburg, DE
• Hans-Joachim Beck · Rheinstetten, DE

Key dates

• Filing date: May 4, 1976
• Grant date: Mar 20, 1979
• Expiry date: May 4, 1996

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01B3/306
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polyester imide resin having ester groups of acid and alcohol moieties in the chain, and also in the chain a content of 5-membered imide rings of the general formula: ##STR1## The resin is soluble in cresol solvent and can be combined with such solvents to form a lacquer suitable for enameling of wire.