Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1984-10-02

1986-07-29

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

252 6254, 360134, 360135, 360136, 427 44, 427128, 428480, 428522, 428694, 428900, G11B 570

Patent

active

046030816

ABSTRACT:
A magnetic recording medium, produced by preparing a resin solution for magnetic paint containing a mixture of a radiation curable resin modified copolymer of (A) vinyl chloride, (B) a vinyl carboxylate, (C) vinyl alcohol, (D) an unsaturated carboxylic acid and (E) an unsaturated carboxylic anhydride, containing 50 to 90% by weight of (A) based on the total of the amounts of (A), (B) and (C), 0 to 30% by weight of (E) based on the total of the amounts of (D) and (E), and 1 to 5 parts by weight of the total of (D) and (E) based on 100 parts by weight of the total of (A), (B) and (C) and having an average polymerization degree of 100 to 400 and an other radiation curable resin, and a magnetic powder, applying the resultant magnetic paint to a nonmagnetic substrate, and curing the applied layer of paint with radiation.

REFERENCES:
patent: 4415630 (1983-11-01), Kubota
patent: 4448846 (1984-05-01), Chang
patent: 4476035 (1984-10-01), Miyoshi
patent: 4559265 (1985-12-01), Kubota
patent: 4560617 (1985-12-01), Nishimatsu

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