Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1983-04-18

1985-10-08

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of epoxy ether

252 6254, 4284231, 4284259, 428532, 428694, 428900, B32B 2738, G11B 570

Patent

active

045460442

ABSTRACT:
A magnetic recording medium having a magnetic layer containing a urethane resin having a tensile strength of less than 200 kg/cm.sup.2 and an elongation at break of 900% or more, and another urethane resin having a tensile strength of 200 kg/cm.sup.2 or more and an elongation at break of less than 900%. This recording medium has good surface properties, good magnetic particles' orientation, great durability, and high wear resistance and produces high output.

REFERENCES:
patent: 3558353 (1971-01-01), Harada et al.
patent: 4020227 (1976-04-01), Deffeyes
patent: 4058646 (1977-11-01), Vaeth et al.
patent: 4152485 (1979-05-01), Mizumura et al.
patent: 4286022 (1981-08-01), Vermillion et al.
patent: 4336308 (1982-06-01), Yamada et al.
patent: 4357391 (1982-11-01), Hosaka et al.
patent: 4368239 (1983-01-01), Nakajima et al.
patent: 4370383 (1983-01-01), Kawahara
patent: 4405684 (1983-09-01), Blumentritt et al.
patent: 4409291 (1983-10-01), Ogawa et al.
patent: 4410440 (1983-10-01), Ko

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