Importance

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Abstract

The present invention provides a magnetic recording medium for high density recording, which has very good repeated running durability and excellent storage stability under high temperature and high humidity conditions. The magnetic recording medium comprises a magnetic layer having ferromagnetic powder and a binder dispersed therein, said magnetic layer being provided on a non-magnetic support, whereby said magnetic layer contains a diester compound expressed by a chemical formula (1) given below: ##STR1## where R.sup.1 and R.sup.2 each represents a saturated hydrocarbon group having 5 to 21 carbon atoms, and at least one substance selected from a group of organic phosphorus compounds expressed by the chemical formulae (2) to (4): ##STR2## where R represents a substituted or unsubstituted alkyl group, alkenyl group or aryl group, and n represents 1 or 2, and M represents a hydrogen atom, an alkali metal or an alkali earth metal.

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First Claim