Production of magnetic recording media

Details Production of magnetic recording media Production of magnetic recording media

1982-12-16

1984-02-07

Pianalto, Bernard D.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427128, 427130, H01F 1002

Patent

active

044303629

ABSTRACT:
Magnetic recording media are produced by a method wherein a fluid dispersion of finely divided magnetically anisotropic material in a film-forming binder mixture containing a polyurethane (obtained from a polyester which possesses free hydroxyl groups, and a di- or polyisocyanate) is applied to a non-magnetic base and the magnetic layer is then hardened.

REFERENCES:
patent: 2871218 (1959-01-01), Schollenberger
patent: 2899411 (1959-08-01), Schollenberger
patent: 3144352 (1964-08-01), Talley
patent: 3149995 (1964-09-01), Bauer
patent: 3247017 (1966-04-01), Eichler et al.
patent: 3320090 (1967-05-01), Graubart
patent: 3437510 (1969-04-01), Diaz
patent: 3650828 (1972-03-01), Higashi

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