Apparatus for producing coils from films of insulating material, conductively coated in a vacuum

US4740385A · kind A · utility

Assignee

• Leybold-Heraeus GmbH · DE

Inventors

• Albert Feuerstein · Neuberg, DE
• Helmut Eberhardt · Gelnhausen, DE
• Helmut Lammermann · Alzenau, DE
• Volker Bauer · Neuberg, DE
• Gerald Lobig · Frankfurt am Main, DE

Key dates

• Filing date: Feb 26, 1987
• Grant date: Apr 26, 1988
• Expiry date: Feb 26, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/283
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method and apparatus are disclosed for producing rolls or coils of film of insulating material which has been conductively coated, in a vacuum, by vaporizing conductive material in direct electron beam bombardment and condensing the vapor on the film surface. According to the invention, the film is subjected to a plasma treatment after coating and before the film is wound in a coil.