Lubricant for a magnetic member

Details Lubricant for a magnetic member Lubricant for a magnetic member

1978-05-15

1980-02-12

Robinson, Ellis P.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

252 546, 364134, 364135, 427131, 427128, 427426, 428 64, 428216, 428422, 428900, 428484, H01F 126, B32B 2728

Patent

active

041884345

ABSTRACT:
A magnetic record, such as a magnetic disc, has a smooth continuous layer of solid lubricant mixed with liquid lubricant. The lubricating layer is applied by spraying the magnetic record with a carrier in which the solid and liquid lubricants are dissolved. In the preferred embodiment, tetrafluoroethylene telomer, a solid lubricant, is applied to a magnetic disc and then buffed. Perfluoroalkylpolyether, a liquid lubricant, is then applied and buffed. The lubricants are dissolved in a carrier of trichlorotrifluoroethane.

REFERENCES:
patent: 2654681 (1953-10-01), Lueck
patent: 3387993 (1968-06-01), Flowers
patent: 3466156 (1969-09-01), Peters
patent: 3490946 (1970-01-01), Wolff
patent: 3523086 (1970-08-01), Bisschops
patent: 3689317 (1972-09-01), Akashi
patent: 3704152 (1972-11-01), Hartmann
patent: 3778308 (1973-12-01), Roller
patent: 3862860 (1975-01-01), Pardee
patent: 3919719 (1975-11-01), Wright
patent: 3993824 (1976-11-01), Shirahata

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