Conductors having insulation of polyester imide resin

US4170684A · 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: Apr 15, 1976
• Grant date: Oct 9, 1979
• Expiry date: Apr 15, 1996

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31721
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Polyester imide resins containing 5-membered imide rings between the ester groups. The resins are soluble in cresol, and cresol solutions are useful as enameling lacquers for wire conductors.