MAGNETIC RECORDING MEDIUM COMPRISING A LOWER MAGNETIC LAYER CONTAINING AN AMINE MODIFIED VINYL CHLORIDE COPOLYMER AND AN UPPER MAGNETIC LAYER CONTAINING A VINYL CHLORIDE COPOLYMER WITH A POLAR GROUP

摘要

A magnetic recording medium excellent in video output and audio output is disclosed which comprises a non-magnetic support having thereon at least plurality of a first magnetic layer and a second magnetic layer, containing ferromagnetic particles dispersed in a binder, in that sequence, wherein said first magnetic layer contains an amine-modified vinyl chloride copolymer as the binder. Preferably, the second magnetic layer contains a vinyl chloride copolymer as a binder having at least one polar group selected from the group consisting of -OH, an epoxy group, -COOM, -SO3M, -OSO3M, wherein M represents hydrogen, an alkali metal or ammonium.