Magnetic recording medium and binder for use with magnetic coati

Details Magnetic recording medium and binder for use with magnetic coati Magnetic recording medium and binder for use with magnetic coati

1997-10-14

1999-08-10

Resan, Stevan A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

4284259, 428480, 428522, 428694B, 428694BU, 428694BG, 428694BA, 428900, B32B 516

Patent

active

059357037

ABSTRACT:
A magnetic recording medium has a substrate and a magnetic layer formed on the substrate. The magnetic layer includes magnetic powder and a binder for binding the magnetic powder on the substrate. The binder includes at least a resin component containing at least an aminoquinone structure selected from an aminoquinone structure group shown with formulas (1-1a), (1-1b), (1-3a) and (1-3b) as a constitutional unit and at least a polar group selected from a group shown with a formula (1-2) in a composition of the resin component. Thus, the magnetic recording medium has excellent corrosion resistance of the magnetic powder and excellent conservation and running durability.

REFERENCES:
patent: 4956220 (1990-09-01), Sueyoshi et al.
patent: 5475066 (1995-12-01), Nikles et al.
patent: 5527603 (1996-06-01), Isobe et al.
patent: 5534361 (1996-07-01), Hisano et al.
IEEE Transactions on Magnetics, 29 (6), 3649-3651 (1993) Liang, Jeng-Li et al.
Progress in Organic Coatings, No. 15, 63-71 (1987) Kaleem, K. et al.
J. Appl. Poly. Sci. 42, 2893-2897 (1991) Nithianandam, V.S. et al.
Patent Abstracts of Japan 10(151), (M-483) May 31, 1986.

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