Magnetic recording medium comprising a polyethylene-2,6-naphthal

Details Magnetic recording medium comprising a polyethylene-2,6-naphthal Magnetic recording medium comprising a polyethylene-2,6-naphthal

1992-07-06

1994-11-15

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

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

428212, 428213, 428216, 428323, 428327, 428328, 428329, 428330, 428331, 428336, 428413, 4284259, 428480, 428481, 428483, 428522, 428523, 428532, 428694TS, 428694TB, 428694SL, 428694SG, G11B 0500

Patent

active

053646843

ABSTRACT:
Disclosed herein is a magnetic recording medium comprising:
a stretched polyethylene-2,6-naphthalate multilayered film having a high-roughness surface and a low-roughness surface;
a coating layer (A) having specific surface properties and being formed on the high-roughness surface of said multilayered film;
a coating layer (B) having a specific surface property and being formed on the low-roughness surface of said multilayered film; and
a thin ferromagnetic metal film formed on said coating layer (B).

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patent: 4803125 (1989-02-01), Takeuchi et al.
patent: 5051292 (1991-09-01), Katoh et al.
patent: 5069962 (1991-12-01), Okazaki et al.
patent: 5200255 (1993-04-01), Matsubara et al.

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