Magnetic recording medium containing ferromagnetic particles wit

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428329, 428402, 428409, 4284246, 4284258, 4284259, 428694, 428900, G11B 500

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050967746

ABSTRACT:
A magnetic recording medium is disclosed, which comprises a non-magnetic support having thereon a magnetic layer comprising ferromagnetic fine particles and a binder containing a vinyl chloride polymer, wherein the crystalline size of the ferromagnetic fine particles is from 350 to 500 angstrom, the content of the vinyl chloride polymer is from 20 to 50% by weight based on the amount of the total binder, and an integrated intensity ratio .alpha. of the Cl-2P spectrum to the Fe-2P (3/2) spectrum at the surface of the magnetic layer measured by an X-ray photoelectron spectroscopy is 1.80/1>.alpha.>0.50/1.

REFERENCES:
patent: 4888212 (1989-12-01), Iida et al.
patent: 4904530 (1990-02-01), Huizing et al.

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