Magnetic recording medium having binder cured by electron beam r

Details Magnetic recording medium having binder cured by electron beam r Magnetic recording medium having binder cured by electron beam r

1983-08-09

1985-12-24

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of polyamidoester

252 625Y, 360134, 360135, 360136, 427 44, 427128, 428522, 428694, 428900, G11B 570

Patent

active

045606161

ABSTRACT:
A magnetic recording medium comprising a support having coated thereon a magnetic layer is disclosed. The magnetic layer is comprised of a binder composition having ferromagnetic particles dispersed therein. The binder composition is cured by an electron beam and comprises a copolymer, a urethane resin and a compound having two or more acryloyl groups or methacryloyl groups. The copolymer may be a vinyl chloride-vinyl acetate-vinyl alcohol copolymer having a vinyl alcohol content of 1 to 15 wt % or a vinyl chloride-vinyl acetate-maleic acid copolymer having a maleic acid content of 1 to 10 wt %. The recording medium has excellent electromagnetic properties and the magnetic layer has excellent dynamic properties.

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