Magnetic recording medium with lubricant

Details Magnetic recording medium with lubricant Magnetic recording medium with lubricant

1973-05-14

1977-07-05

Pianalto, Bernard D.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428416, 428538, 428539, 428900, H01F 1000

Patent

active

040341330

ABSTRACT:
A magnetic recording element of the type including a base and a coating upon a surface of the base, the coating comprising magnetic particles dispersed in a polymeric binder and a lubricant, the improvement comprising a lubricant chosen from the group consisting of a trifluoride of cerium, lanthanum, praseodymium, neodymium, and samarium.

REFERENCES:
patent: 2446251 (1948-08-01), Stricklin
patent: 3320090 (1967-05-01), Graubart
patent: 3387993 (1968-06-01), Flowers
patent: 3474073 (1969-10-01), Higashi
patent: 3523086 (1970-08-01), Bisschops et al.
patent: 3542589 (1970-11-01), Hartmann et al.
Friedman et al, vol. 9, No. 7, Dec. 1966, IBM Tech. Dis. Bull., p. 779.
Handbook of Chemistry, seventh ed., Lange, 1949 pp. 202 and 262.

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