Magnetic recording media comprising fluorinated organosilicones

Details Magnetic recording media comprising fluorinated organosilicones Magnetic recording media comprising fluorinated organosilicones

1983-07-27

1984-09-04

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of silicon containing

252 6254, 360134, 360135, 360136, 427128, 428480, 428694, 428695, 428900, G11B 568, G11B 570

Patent

active

044697503

ABSTRACT:
Magnetic recording media are described which comprise a support having a magnetic recording layer thereon. The magnetic recording layer is made of a dispersion of magnetic particles in a binder and a specific type of fatty acid-modified, fluorinated organosilicone. The organosilicone is represented by the general formula ##STR1## in which R.sub.1 represents a monovalent saturated or unsaturated hydrocarbon having 7 to 21 carbon atoms, R.sub.2 represents a methyl or phenyl group, each R.sub.3 represents a OCOR.sub.1 in which R.sub.1 has the same meaning as defined above, Y represents --CF.sub.3 or --(CF.sub.2)--.sub.k W in which k is an integer of from 1 to 8, and W is hydrogen or fluorine, and l, m and n are independently an integer provided that 0.ltoreq.l<200, 1.ltoreq.m<100, 1.ltoreq.n<100, and l+m+n.ltoreq.300.

REFERENCES:
patent: 4007313 (1977-02-01), Higuchi
patent: 4369230 (1983-01-01), Kimura
patent: 4431703 (1984-02-01), Somezawa

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