Magnetic recording medium having a binder system including a non

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428329, 4284259, 428522, 428694B, 428694BU, 428694BB, G11B 500

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active

055019030

ABSTRACT:
A polymeric binder system useful for a magnetic recording medium, the polymeric binder system and comprising a hard resin component comprising a nonhalogenated vinyl copolymer and a soft resin component comprising a polyurethane having a phosphonate diester group. The binder system is useful for preparing the magnetic layer and/or backside coating of magnetic recording media, in order to provide media that demonstrate an improved combination of such as modulus, Tg, and smoothness.

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