Magnetic recording medium comprising magnetic particles and a po

Details Magnetic recording medium comprising magnetic particles and a po Magnetic recording medium comprising magnetic particles and a po

1990-11-13

1992-09-29

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of polyamidoester

428694, 428900, G11B 500

Patent

active

051513307

ABSTRACT:
There is disclosed a magnetic recording medium having the excellent electromagnetic conversion properties and an improved Young's modulus of a magnetic layer, wherein the magnetic layer contains a binder comprising a polyurethane resin having a polycaprolactone structural unit and a vinyl chloride resin having --SO.sub.3 M, --COOM, --OSO.sub.3 M, ##STR1## wherein M represents hydrogen, lithium, sodium or potassium.

REFERENCES:
patent: 4555449 (1985-11-01), Koleske et al.
patent: 4585702 (1986-04-01), Osborn et al.
patent: 4634633 (1987-01-01), Ninomiya et al.
patent: 4637959 (1987-01-01), Ninomiya et al.
patent: 4762902 (1988-08-01), Murphy
patent: 4784914 (1988-11-01), Matsufuji et al.
patent: 4786557 (1988-11-01), Kakuishi et al.
338830

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