Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1986-05-28
1988-12-27
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, 428408, 428328, 428329, 428522, 428694, 428695, 428900, 4284259, G11B 572
Patent
active
047940409
ABSTRACT:
A magnetic recording medium comprising 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 formed of a composition which comprises a dispersion, in a resin binder, of carbon black having a pH of 2.0 to 8.5 and a coloring power not less than 90 as determined by the ASTM method. The dispersion may further comprise a specific type of aliphatic acid-modified, fluorinated organosilicone in order to improve the travellability and durability of the medium.
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Ullmanns Encyklopadie D. Techn. Chemie, 3. edition, vol. 14, pp. 793 to 795, 803 to 810.
Matsumoto Yukio
Ogino Hiroshi
Ojima Kumiko
Togashi Hiroshi
Robinson Ellis P.
Victor Company of Japan Ltd.
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