Magnetic recording media comprising a polyurethane binder resin

Details Magnetic recording media comprising a polyurethane binder resin Magnetic recording media comprising a polyurethane binder resin

1990-08-23

1992-06-09

Cashion, Jr., Merrell C.

Stock material or miscellaneous articles

Composite

Of polyamidoester

428694, 428695, G11B 500

Patent

active

051206080

ABSTRACT:
Magnetic recording media consist of a nonmagnetic substrate and at least one magnetizable layer which is firmly applied thereon and is based on a polyurethane binder which may be crosslinked with a polyisocyanate, not less than 50% by weight of the binder consisting of a low molecular weight branched polyurethane having OH-containing urea groups at the chain ends, and the frictional properties of the binder being improved and its friction reduced by the incorporation of perfluoro groups.

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