Patent ID: 6040043
Filing Date: 2000-03-21
Classification: B82Y,C01G,C01P,C09C,G11B,Y10S,Y10T

Abstract:
A magnetic recording medium comprising a substrate, a non-magnetic layer comprising acicular iron oxyhydroxide particles and a resinous binder formed on said substrate, and a magnetic layer comprising magnetic particles and resinous binder formed on said non-magnetic layer, said acicular iron oxyhydroxide particles having an average major axis of 0.01 to 0.5 .mu.m and containing not less than 0.1 wt. % and not more than 30 wt. % of Al wherein said acicular iron oxyhydroxide particles release not less than 0.1 wt. % and not more than 2 wt. % of water at 100.degree. C.