Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1993-05-10
1997-06-03
Kiliman, Leszek
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428327, 428328, 428329, 428330, 428694B, 428694BU, 428694BN, 428900, 427128, 427129, 427130, 427131, G11B 566, B32B 516, B05D 512
Patent
active
056352948
ABSTRACT:
A magnetic recording medium and a manufacturing process thereof are disclosed. The medium comprises a magnetic layer containing a binder, chromium oxide having an average particle size within the range of 0.3 to 0.5 .mu.m and a metal magnetic powder, wherein the binder comprises a polyurethane resin having a polar group selected from the group consisting of --SO.sub.3 M, --OSO.sub.3 M, --COOM, --PO (OM), and --OPO(OM).sub.2 wherein M represents a hydrogen atom or an alkali metal.
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Kikugawa Syozo
Michihata Isamu
Murata Hideki
Sekiguchi Nobuyuki
Takeda Katsuyuki
Bierman Jordan B.
Kiliman Leszek
Konica Corporation
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