MAGNETIC RECORDING MEDIUM

摘要

There is disclosed a magnetic recording medium wherein a magnetic powder is uniformly dispersed in a curable substance of a binder resin material comprising a vinyl chloride-vinyl acetate series resin and/or a polyurethane series resin, at least one of which having a B value in a following apparent viscosity equation: log eta a=Bx+log [ eta ] wherein eta a is an apparent viscosity (cP) at a temperature of 25 DEG C., x is a resin concentration (wt %(), [ eta ] is a limiting viscosity (cP) at a temperature of 25 DEG C. and B is a constant, of 10 or less, which is measured by dissolving the resin in a mixed solvent of equal weights of methyl ethyl ketone toluene and cyclohexanone; and the B value of the mixed binder resin being 11 or less. The magnetic recording medium of the present invention is the high density recording medium having the great rectangular ratio and excellent in the noise properties.