Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1982-01-20

1983-06-21

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Composite

Of polyamidoester

252 6253, 252 6254, 427127, 427128, 428694, 428695, 428900, B32B 2728, B32B 2730, B32B 2736, B32B 2740

Patent

active

043894585

ABSTRACT:
In a magnetic recording medium having a substrate coated with a magnetic layer comprising a magnetic powder and a binder, an improvement characterized in that said binder in said magnetic layer essentially consisting of 20 to 60 wt. % of a polyurethane, 15 to 45 wt. % of a polyester resin and 20 to 50 wt. % of a vinyl chloride-vinyl acetate copolymer-impregnated nitrocellulose.

REFERENCES:
patent: 4115290 (1978-09-01), Kubota et al.

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