Magnetic recording medium having a magnetic layer with a Tg of 8

Details Magnetic recording medium having a magnetic layer with a Tg of 8 Magnetic recording medium having a magnetic layer with a Tg of 8

1993-11-01

1995-05-30

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

4283179, 428323, 428328, 428336, 428694BR, 428900, 360125, G11B 500

Patent

active

054199433

ABSTRACT:
A magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer, said magnetic layer comprising ferromagnetic particles and a binder, wherein nonmagnetic support has a transverse-direction Young's modulus of at least 1,000 Kg/mm.sup.2, said magnetic layer has a glass transition temperature of 80.degree. to 100.degree. C., and said magnetic recording medium has a total thickness of less than 12 .mu.m, and further a magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer, said magnetic layer comprising ferromagnetic particles and a binder, wherein said magnetic recording medium is adapted for use with a magnetic head having a core width of at least 100 .mu.m at a speed of at least 20 m/sec based upon relative speed of said recording medium and said head, said nonmagnetic support has a transverse-direction Young's modulus of at least 1,000 Kg/mm.sup.2, said magnetic layer has a glass transition temperature of from 80.degree. to 100.degree. C., and said magnetic recording medium has a total thickness of less than 12 .mu.m.

REFERENCES:
patent: 4833019 (1989-05-01), Suwarnasaru
patent: 5178925 (1993-01-01), Endo et al.
patent: 5196265 (1993-03-01), Ryoke et al.

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