Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1979-11-19

1982-07-20

Silverman, Stanley S.

Stock material or miscellaneous articles

Composite

Of polyamidoester

252 6254, 360134, 427128, 4284259, 428483, 428522, 428694, 428900, G11B 568

Patent

active

043406440

ABSTRACT:
A magnetic recording medium consisting of a base coated with magnetic coating material which is a dispersion of magnetic particles using a vinyl chloride-vinyl acetate copolymer and a polyester resin as binder, characterized by the addition of a vinyl chloride-vinyl acetate copolymer containing at least 10% of vinyl alcohol. The use of the last-mentioned copolymer improves the frequency response characteristic as well as the mechanical properties such as the running quality.

REFERENCES:
patent: 3049442 (1962-08-01), Haines et al.
patent: 3149995 (1964-09-01), Bauer
patent: 3460984 (1969-08-01), Bisschops et al.
patent: 3983302 (1976-09-01), Zucker
patent: 4068040 (1978-01-01), Yamada et al.
patent: 4115290 (1978-04-01), Kubota et al.
patent: 4234438 (1980-11-01), Horigome et al.

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