Magnetic recording medium and method for making

Details Magnetic recording medium and method for making Magnetic recording medium and method for making

1984-11-19

1987-01-20

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of inorganic material

360134, 360135, 360136, 427 44, 427128, 427131, 428323, 428328, 428329, 428900, 428522, 428523, G11B 572

Patent

active

046379630

ABSTRACT:
In a magnetic recording medium comprising a non-magnetic substrate having opposed major surfaces, a non-magnetic undercoat on one major surface of the substrate, a magnetic layer on the undercoat, and a non-magnetic backcoat on the other major surface of the substrate, at least one of said undercoat and said backcoat is formed of a coating composition comprising a radiation curable base resin preferably having a radiation-sensitive double bond such as acrylic, maleic or allylic double bond, an optional thermoplastic resin, and an effective amount of an anti-static agent selected from known surface-active agents, the composition being cured through crosslinking by exposure to radiation. The magnetic recording medium is prepared by mixing the resins with the anti-static agent, coating the substrate with the composition, and exposing the coating to radiation.

REFERENCES:
patent: 4183976 (1980-01-01), Yamada
patent: 4419406 (1983-12-01), Isobe
patent: 4468436 (1984-08-01), Okita
patent: 4511629 (1985-04-01), Konno
patent: 4547419 (1985-10-01), Nishimatsu
patent: 4559265 (1985-12-01), Kubota
patent: 4560617 (1985-12-01), Nishimatsu

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