Magnetic recording medium with electron beam cured magnetic laye

Details Magnetic recording medium with electron beam cured magnetic laye Magnetic recording medium with electron beam cured magnetic laye

1983-10-18

1986-10-28

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

252 6254, 360134, 360135, 360136, 427 44, 427128, 428148, 4284259, 428522, 428694, 428900, G11B 570

Patent

active

046198555

ABSTRACT:
A magnetic recording medium is disclosed. The medium is comprised of a support base having an average center line roughness (Ra) of 0.035 .mu.m or less which has coated thereon a magnetic layer. The magnetic layer is comprised of ferromagnetic fine particles dispersed in a binder comprising (1) a polymer selected from the group consisting of nitrocellulose resins, vinyl chloride-vinyl acetate resins and vinyl chloride-vinyl propionate type resins; (2) a urethane resin; and (3) a compound having 2 or more acrylate groups or methacrylate groups in the molecule thereof. The magnetic layer is cured by radiation with electron beams and has excellent electromagnetic properties as well as high durability. The magnetic medium provides less abrasiveness and the magnetic coating composition is stable and homogeneous during storage.

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