Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1984-06-28

1986-05-06

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of polyamidoester

252 6254, 360134, 360135, 360136, 427128, 428328, 428329, 428694, 428900, 428522, 428532, G11B 570

Patent

active

045871701

ABSTRACT:
A magnetic recording medium comprising a nonmagnetic support having coated thereon a magnetic recording layer comprising a ferromagnetic particles dispersed in a binder, the binder containing polyisocyanate and the molar ratio of (urethane bond+allophanate bond):(urea bond+biuret bond) being 85:15 to 60:40.

REFERENCES:
patent: 3419420 (1968-12-01), Stahly
patent: 3499789 (1970-03-01), Delmore
patent: 3597273 (1971-08-01), Akashi
patent: 3650828 (1972-03-01), Higashi
patent: 3713887 (1973-01-01), Stimson
patent: 3781210 (1973-12-01), Lohoff
patent: 3781211 (1973-12-01), Lohoff
patent: 4135016 (1979-01-01), Ogawa
patent: 4368237 (1983-06-01), Yamada
patent: 4499121 (1985-02-01), Yamaguchi

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