Magnetic recording medium comprising an undercoating made of a mixture of thermosetting polyurethane and polyester resins.

摘要

A magnetic recording medium which comprises a non-magnetic support, and a magnetic layer formed on the support through an undercoat layer is described. The undercoat layer is made of a cured product of a mixture of a thermosetting polyurethane resin and a thermosetting polyester used in an amount of not greater than 10 wt% of the polyurethane resin. The undercoat layer may further comprise a phosphate ester.