Magnetic recording media comprising an antistatic agent-containing resin layer provided between a support and a magnetic recording layer
AssigneeVictor Company of Japan, Ltd.
InventorOsamu Kobayashi
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Abstract
A magnetic recording medium is disclosed which comprises a support, a non-magnetic resin layer formed on at least one side of the support and made of a mixture of an antistatic agent and a resin binder, and a magnetic recording layer formed on said non-magnetic resin layer and made of magnetic particles dispersed throughout a binder. The antistatic agent is used in an amount of from 1 to 100 parts by weight per 100 parts by weight of the binder of the non-magnetic resin layer. The mixture may further comprise a curing agent, or particles of carbon black and/or titanium monoxide.
Claims9
A magnetic recording medium comprising a support, a non-magnetic resin layer formed on at least one side of said support and made of a mixture of an antistatic agent and a resin binder, and a magnetic recording layer formed on said non-magnetic resin layer and made of magnetic particles dispersed throughout a binder, said antistatic agent being at least one member selected from the group consisting of alkyl sulfates, alkylarylsulfates, alkylphosphates, alkylaminesulfates, quaternary ammonium salts, quaternary ammonium resins, imidazoline derivatives, sorbitan esters, polyoxyethylene alkyl or aryl ethers, ethanolamides, betaines, and primary, secondary and tertiary amines, and being contained in an amount from 1 to 100 parts by weight per 100 parts by weight of the binder of said non-magnetic resin layer.
Dependencies are inferred from the claim text.