Magnetic recording media

Details Magnetic recording media Magnetic recording media

1974-12-18

1976-12-07

Kendell, Lorraine T.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

427128, 427130, 428329, 428447, 428451, 428452, B32B 516, B32B 904

Patent

active

039964078

ABSTRACT:
Magnetic recording media comprising a non-magnetizable flexible base and a firmly adhering magnetic coating based on a dispersion, containing a silane, of a magnetic pigment in a polymeric binder, and a process for their manufacture. The silane is an aminoalkylsilane R.sub.n Si(OR').sub.4-n, wherein n is 1, 2 or 3, R' is alkyl of 1 to 8 carbon atoms and R is aminoalkyl of the formula with one or more primary and/or secondary amino groups and from 3 to 11 carbon atoms. Magnetic recording media comprising a magnetic coating containing such a silane exhibit better abrasion resistance and better electromagnetic properties than comparable coatings.

REFERENCES:
patent: 3357855 (1965-12-01), Bisschops et al.
patent: 3476595 (1969-11-01), Nacci
patent: 3490946 (1970-01-01), Wolff
patent: 3585141 (1971-06-01), Ingersoll
patent: 3625760 (1971-12-01), Slovinsky
patent: 3728262 (1973-04-01), Lemmen et al.
patent: 3778308 (1973-12-01), Roller et al.
patent: 3795539 (1974-03-01), DiMino
patent: 3836395 (1974-09-01), Roller et al.
patent: 3840400 (1974-10-01), Yamada et al.

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