Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1983-12-20

1985-08-27

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

360134, 360135, 360136, 427128, 427131, 427132, 428336, 428694, 428695, 428900, 204192D, 204192M, G11B 572

Patent

active

045378320

ABSTRACT:
A magnetic recording medium for use in video and other applications is presented which comprises a substrate, a continuous thin magnetic layer of cobalt and at least one selected from nickel, chromium, and oxygen, preferably obliquely evaporated on the substrate, and a topcoat formed over the magnetic layer and made of a phosphate compound having the formula: ##STR1## where R is selected from alkyl radicals having 10 to 22 carbon atoms, and Y and Y' are independently selected from the group consisting of hydrogen atom, alkyl radicals and monovalent cations, and Y and Y' may together represent a divalent cation.

REFERENCES:
patent: 4232072 (1980-11-01), Pardee
patent: 4305994 (1981-12-01), Murase
patent: 4425404 (1984-01-01), Suzuki
Journal of Applied Physics, 36, No. 3, pp. 972-974, (1965).
The Fourth International Conference on Video and Data Recording, _IERE Conference Proceedings No. 54.

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