Magnetic recording medium having a back coat layer

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

1986-07-21

1988-01-19

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428143, 428323, 428694, 428900, G11B 570

Patent

active

047204133

ABSTRACT:
A magnetic recording medium which comprises a non-magnetic support, a magnetic recording layer formed on one side of the support, and a back coat layer formed on the other side. The back coat layer is made of a dispersion, in a binder resin, of non-magnetic particles on which there is adsorbed carbon black having an average size not larger than 100 millimicrons and a specific surface area not less than 30 m.sup.2 /g.

REFERENCES:
patent: 4592952 (1986-06-01), Miyoshi et al.
patent: 4595631 (1986-06-01), Matsumoto
patent: 4618535 (1986-10-01), Nishimatsu et al.

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