Magnetic recording members

Details Magnetic recording members Magnetic recording members

1975-06-20

1978-01-10

Pianalto, Bernard D.

Stock material or miscellaneous articles

Composite

Of polyamidoester

427128, 428500, 428900, H01F 1002

Patent

active

040680401

ABSTRACT:
Magnetic recording tapes having an excellent durability are obtained by using as a binder for ferromagnetic powders on a base film or sheet an intimate mixture of (1) a vinyl chloride-vinyl acetate copolymer, (2) an organic polyisocyanate and (3) a reactive acrylic resin having a carboxyl group content of from 1 to 30% by weight which will react through the carboxyl groups with the polyisocyanate compound into a crosslinked cured state.

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patent: 3510489 (1970-05-01), Graham et al.
patent: 3597273 (1971-08-01), Akashi et al.
patent: 3630771 (1971-12-01), Akashi et al.
patent: 3650828 (1972-03-01), Higashi et al.
patent: 3690946 (1972-09-01), Hartmann et al.
patent: 3733293 (1973-05-01), Gallagher et al.

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