Magnetic recording medium comprising specific backcoat layer

Details Magnetic recording medium comprising specific backcoat layer Magnetic recording medium comprising specific backcoat layer

1993-09-29

1995-07-18

Nakarani, D. S.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428694TB, 428900, B32B 516

Patent

active

054339995

ABSTRACT:
In a magnetic recording medium with a back coat layer including polyurethane having a Tg (glass-transition temperature) below room temperature, isocyanate hardener, carbon powder and inorganic abrasive pigment are formed on a face of a non-magnetic substrate opposite a face covered by a magnetic recording film. Using this back coat layer, improved post contact characteristics and the like are obtained and smooth running conditions under small tensions are realized. Further, the magnetic recording medium causes only a small amount of head wear, and the medium has improved wear resistance.

REFERENCES:
patent: 4328935 (1982-05-01), Steel
patent: 4600638 (1986-07-01), Ishikuro et al.
patent: 4784907 (1988-11-01), Matsufuji et al.
patent: 4789583 (1988-12-01), Akutsu
patent: 5039554 (1991-08-01), Ishikuro et al.
patent: 5084336 (1992-01-01), Kenpo et al.
patent: 5094916 (1992-03-01), Sasaki et al.
Derwent Publication, London Database Wpil, Accession No. 91-205323, Jun. 20, 1990.
"Fibers, Optical to Hydrogenation", Encyclopedia of Polymer Science and Engineering, 1985 vol. 7, pp. 535-542.
Patent Abstracts of Japan, vol. 13, No. 428 (p. 936) 25 Sep. 1989, and JPA 01-159828 (Konica Corp.) 22 Jun. 1989 and KR 9004311 Abstract.

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