Method for the preparation of metal-free strips in the metal vap

Details Method for the preparation of metal-free strips in the metal vap Method for the preparation of metal-free strips in the metal vap

1982-08-23

1984-10-23

McIntosh, John P.

Coating processes

Electrical product produced

Condenser or capacitor

427154, 4272555, 427259, 427282, 118718, 118721, C23C 1302, C23C 1304

Patent

active

044788789

ABSTRACT:
Method for preparation of metal-free strips in the metal vapor deposition of an insulating tape intended for use in electric capacitors, in which the insulating tape is covered, in the region of the metal-free strips to be prepared, by an endless cover tape which rests against the insulating tape and travels along with the same velocity as the former and is coated with oil on the side facing the metal evaporator before entering the vapor deposition zone. The invention is characterized by the features that first, the insulating tape and the cover tape are brought into contact with each other; that then by vapor deposition of oil, a film is prepared which also covers the lateral surfaces of the cover tape as well as slightly adjacent areas, and whereupon the metal vapor deposition takes place.

REFERENCES:
patent: 2898241 (1959-08-01), Charlton et al.

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