Magnetic recording media

Details Magnetic recording media Magnetic recording media

1984-09-10

1985-12-24

Demers, Arthur P.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415915, 20415916, 20415919, 20415922, 428402, 428413, 4284231, 4284237, 4284259, 428480, 428692, 428694, 428900, 428928, C08F 246

Patent

active

045604568

ABSTRACT:
Magnetic recording media comprise a non-magnetic base and one or more magnetic layers consisting of an organic binder matrix containing finely divided magnetic material, the said matrix being obtained by electron beam curing of a mixture of from 70 to 90% by weight of a polyurethane acrylate polymer possessing polymerizable double bonds and from 10 to 30% by weight of one or more copolymerizable compounds.

REFERENCES:
patent: 3948739 (1976-04-01), Chaudhari et al.
patent: 4172776 (1979-10-01), Singelyn
patent: 4224357 (1980-09-01), Iwai et al.
patent: 4450199 (1984-05-01), Tadokoro et al.
patent: 4451535 (1984-05-01), Pingaud et al.
patent: 4454202 (1984-06-01), Komine et al.
patent: 4460653 (1984-07-01), Azegami et al.
patent: 4477531 (1984-10-01), Kohler et al.
DePalma et al., IBM Technical Disclosure Bulletin 25 (1982), No. 7B, p. 3696.

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