Polyurethane high-voltage insulator appliance

US3950452A · kind A · utility

Assignee

• Dr. Beck + CO.AG · DE

Inventors

• Karl Schmidt · Hamburg, DE
• Gerhard Boockmann · Niederlauer, DE

Key dates

• Filing date: Jan 21, 1972
• Grant date: Apr 13, 1976
• Expiry date: Jan 21, 1992

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S174/01
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A weather-resistant high-voltage electrical insulator appliance, or at least a portion thereof which is exposed to the atmosphere, is formed of a solvent-free aliphatic polyurethane which is at least substantially free of aromatic groups.