Magnetic recording medium containing a binder consisting essenti

Details Magnetic recording medium containing a binder consisting essenti Magnetic recording medium containing a binder consisting essenti

1990-10-26

1993-06-22

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of polyamidoester

428522, 428694, 428900, G11B 500

Patent

active

052215822

ABSTRACT:
A magnetic recording medium comprising a non-magnetic substrate and a magnetic powder-containing magnetic layer formed thereon, said layer further containing, as a binder for the magnetic powder, a vinyl chloride polymer containing 2% by weight or less of hydroxyl group(s) not directly bonding to the main chain and a polyurethane containing 2.3 or more isocyanate groups per molecule and having a molecular weight of 2,000 or more and the two polymers being crosslinked by each other.

REFERENCES:
patent: 3490945 (1970-01-01), Slovinsky
patent: 4970127 (1990-11-01), Smith et al.
patent: 4985314 (1991-01-01), Merriam et al.
patent: 5030521 (1991-07-01), Nishikawa et al.

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