Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1995-09-27
1997-02-25
Resan, Stevan A.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428328, 428332, 4284259, 428480, 428520, 428694BA, 428694BG, 428694BU, 428698, 428900, G11B 5706
Patent
active
056057520
ABSTRACT:
A magnetic recording medium comprises a support film and a magnetic layer formed by painting the support film with magnetic material together with a binder. The magnetic powder is iron nitride material and has saturation magnetization .sigma..sub.s of 160-210 emu/g, coersive force Hc of 1500-2500 Oe, acicular ratio of 5-15 and major axis length of 0.05-0.15 .mu.m and the binder contains at least one of vinyl chloride copolymer, polyvinyl chloride acetate copolymer, polyester resin and uretane resin and at least one functional group selected from a group consisting of amino group, methylol group, carboxyl group, acid amide group, isocyanate group, sulfonic acid metallic salt group, phosphate group, quaternary ammonium salt group, sulfo betaine group and epoxy group.
REFERENCES:
patent: 5387464 (1995-02-01), Kato et al.
patent: 5407725 (1995-04-01), Ryoke et al.
patent: 5439754 (1995-08-01), Iwasaki et al.
Meller Michael N.
Resan Stevan A.
Victor Company of Japan Ltd.
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