MAGNETIC RECORDING MEDIUM

摘要

PURPOSE:To lower the coefft. of dynamic friction of a magnetic layer and to obtain a magnetic recording medium having the excellent traveling stability and durability of a tape by adding the powder of a methacrylate crosslinked polymer to a magnetic coating compd. CONSTITUTION:This recording medium has the powder of the methacrylate crosslinked polymer having about 1,000-5,000 degree of polymn. in the magnetic coating compd. The average particle size of the powder of the methacrylate crosslinked polymer is preferably in a 0.05-5(mum) range and the use of the powder having only the single grain size or the combination use of the powders having the different grain size is possible. The powder is preferably added to the magnetic powder in a 0.1-20pts.wt. range per 100pts.wt. magnetic powder. the coefft. of dynamic friction is thereby lowered and the magnetic recording medium having the excellent traveling stability and durability is obtd.