Patent ID: 6294242
Filing Date: 2001-09-25
Classification: B82Y,C01P,C09C,G11B,Y10S,Y10T

Abstract:
A magnetic recording medium comprising:a non-magnetic base film; anda magnetic recording layer comprising a binder resin and black magnetic acicular composite particles having an average particle diameter of 0.051 to 0.72 .mu.m, comprisingmagnetic acicular particles,a coating formed on surface of said magnetic acicular particles, comprising at least one organosilicon compound selected from the group consisting of:(1) organosilane compounds obtainable from alkoxysilane compounds,(2) polysiloxanes or modified polysiloxanes, and(3) fluoroalkyl organosilane compounds obtainable from fluoroalkylsilane compounds, anda carbon black coat formed on said coating layer comprising said organosilicon compound, in an amount of 0.5 to 10 parts by weight based on 100 parts by weight of said magnetic acicular particles.