Magnetic recording medium having a polyvinyl alkyl binder resin

Details Magnetic recording medium having a polyvinyl alkyl binder resin Magnetic recording medium having a polyvinyl alkyl binder resin

1994-01-11

1996-01-16

Resan, Stevan A.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428694B, 428694BS, 428694BM, 428900, G11B 500

Patent

active

054846617

ABSTRACT:
A binder for a magnetic recording medium which contains a polyvinyl alkylal resin modified by a sultone to introduce thereinto an atom group containing a polar group. Also disclosed is a magnetic recording medium that uses the above-described binder in a magnetic layer, a non-magnetic layer, a protective layer, an undercoat layer, etc. The binder and the magnetic recording medium are superior in dispersibility and exhibit high magnetic coating strength.

REFERENCES:
patent: 3647464 (1972-03-01), Smith et al.
patent: 5064720 (1991-11-01), Kempo et al.
patent: 5098785 (1992-03-01), Yanagita et al.
patent: 5244739 (1993-09-01), Carlson et al.

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