Floppy disk comprising a cellulosic resin with a polar group in

Details Floppy disk comprising a cellulosic resin with a polar group in Floppy disk comprising a cellulosic resin with a polar group in

1990-06-08

1992-02-25

Cashion, Jr., Merrell C.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428694, 428900, 428402, 428481, 4284251, G11B 500

Patent

active

050912380

ABSTRACT:
A magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer comprising mainly ferromagnetic metal particles of a specific surface area and binder resins, wherein at least part of said binder resins is a cellulosic resin having in side chains of the molecules thereof a polar group which is a sulfonic acid group, a metal sulfonate group, a phosphoric acid group, or a metal phosphate group.

REFERENCES:
patent: 4713293 (1987-12-01), Asano et al.
patent: 4937098 (1990-06-01), Nishikawa et al.

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