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

1992-12-08

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of polyamidoester

428694, 428695, 428900, 252 6254, G11B 500

Patent

active

051697211

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, not less than 50% by weight of the binder consisting of a high molecular weight branched polyurethane elastomer having OH-containing urea groups at the chain ends, and the frictional properties of the binder being improved and its coefficient of friction reduced by incorporation of perfluoro groups.

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