Binder resin composition for magnetic recording medium, method of manufacturing the same, and magnetic recording medium
AssigneeFUJIFILM Corporation
InventorKazufumi OMURA
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Abstract
An aspect of the present invention relates to a binder resin composition for a magnetic recording medium, which comprises a vinyl chloride resin containing a radiation-curable functional group, and a methacrylate compound denoted by formula (A): in an amount of equal to or more than 0.3 weight percent but equal to or less than 10 weight percent relative to a content of the vinyl chloride resin.
Claims16
A binder resin composition for a magnetic recording medium, which comprises:
- a vinyl chloride resin containing a radiation-curable functional group, and
- a methacrylate compound denoted by formula (A):
- in an amount of equal to or more than 0.3 weight percent but equal to or less than 10 weight percent relative to a content of the vinyl chloride resin.
A method of manufacturing a binder resin composition for a magnetic recording medium, wherein
- the binder resin composition to be manufactured comprises:
- a vinyl chloride resin containing a radiation-curable functional group in the form of a methacryloyloxy group, and
- a methacrylate compound denoted by formula (A):
- in an amount of equal to or more than 0.3 weight percent but equal to or less than 10 weight percent relative to a content of the vinyl chloride resin, and
- the method comprises:
- reacting a vinyl chloride resin containing an active hydrogen group within the molecule thereof with 2-methacryloyloxyethyl isocyanate to obtain the vinyl chloride resin containing a radiation-curable functional group, and
- causing the methacrylate compound denoted by formula (A) to be produced in the reaction.
A magnetic recording medium comprising a magnetic layer containing a ferromagnetic powder and a binder on a nonmagnetic support, which comprises a radiation-cured layer that has been formed by radiation-curing a coating layer containing a binder resin composition for a magnetic recording medium, wherein the binder resin composition comprises:
- a vinyl chloride resin containing a radiation-curable functional group, and
- a methacrylate compound denoted by formula (A):
- in an amount of equal to or more than 0.3 weight percent but equal to or less than 10 weight percent relative to a content of the vinyl chloride resin.
Dependencies are inferred from the claim text.