Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1984-06-25

1985-11-26

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

427128, 360134, 428337, 4284237, 4284259, 428447, 428323, 428408, 428694, 428695, 428900, G11B 572

Patent

active

045554439

ABSTRACT:
A magnetic recording medium comprising a support having a magnetic layer on a first side of said support and a back coat layer on a second side of said support, which second side is opposite said first side, said back coat layer containing at least a silicon-modified polyurethane and a carbon black having a BET value of from 200 to 500 m.sup.2 /g, said silicon-modified polyurethane being obtained by the reaction of an isocyanate and an active hydrogen compound having a siloxane linkage.

REFERENCES:
patent: 4091924 (1978-05-01), Newton
patent: 4267206 (1981-05-01), Johnson
patent: 4310599 (1982-01-01), Akashi
patent: 4434210 (1984-02-01), Nakajima

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