Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1990-05-29
1992-03-17
Cashion, Jr., Merrell C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428329, 428402, 428409, 4284246, 4284258, 4284259, 428694, 428900, G11B 500
Patent
active
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.
Doushita Hiroaki
Ejiri Kiyomi
Sano Kunihiko
Tahara Hiroyuki
Cashion Jr. Merrell C.
Fuji Photo Film Co. , Ltd.
Resan Stevan A.
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