Magnetic recording medium having a back coat layer containing ca

Details Magnetic recording medium having a back coat layer containing ca Magnetic recording medium having a back coat layer containing ca

1986-05-28

1988-08-02

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

427128, 427131, 428403, 428407, 428408, 428694, 428695, 428900, G11B 572

Patent

active

047613319

ABSTRACT:
A magnetic recording medium comprises a back coat layer on one side of a non-magnetic support which is opposite to a side on which a magnetic recording layer has been formed. The back coat layer is made of a composition which comprises, in a resin binder, carbon black treated with a fatty acid of the formula, RCOOH, in which R represents a linear saturated or unsaturated hydrocarbon having from 13 to 17 carbon atoms. The medium is particularly suitable for high density recording.

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patent: 4584243 (1986-04-01), Kadokura
patent: 4592942 (1986-06-01), Nishimatsu
patent: 4629646 (1986-12-01), Ide
patent: 4670333 (1987-06-01), Miyoshi
patent: 4671993 (1987-06-01), Kadokura

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