Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1985-11-19
1988-03-01
Thibodeau, Paul J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
427131, 428694, 428695, 428900, G11B 5708
Patent
active
047285699
ABSTRACT:
A magnetic recording medium is described, comprising a magnetic layer coated on one side of a non-magnetic support and a backing layer coated on the opposite side of the non-magnetic support, wherein the backing layer is provided after the magnetic layer has been subjected to calendering treatment and the backing layer comprises (i) non-magnetic particles including carbon black particles having an average particle diameter of from 0.1 to 1 .mu.m and (ii) a binder composition comprising from 50 to 95 wt % of a resin having a 100% modulus at 150 kg/cm.sup.2 or less based on the total weight of the binder composition, and the weight ratio of non-magnetic particles to binder composition contained in the backing layer is from 300/100 to 40/100.
REFERENCES:
patent: 4451531 (1984-05-01), Isobe et al.
patent: 4544601 (1985-10-01), Yamaguchi et al.
patent: 4578311 (1986-03-01), Ishikuro et al.
Hanai Kazuko
Kosha Hideaki
Ryoke Katsumi
Tadokoro Eiichi
Takahashi Masatoshi
Fuji Photo Film Co. , Ltd.
Thibodeau Paul J.
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