Magnetic recording tape

Details Magnetic recording tape Magnetic recording tape

1974-09-19

1977-04-19

Pianalto, Bernard D.

Stock material or miscellaneous articles

Composite

Of polyamidoester

252 6254, 428900, H01F 1002

Patent

active

040189678

ABSTRACT:
Magnetic recording tape especially suitable for use as video tape and computer tape, comprising a base carrying a magnetic coating which consists essentially of a dispersion of a finely divided magnetic pigment and at least one lubricant in an organic binder. The lubricant is a compound of the formula ##STR1## IN WHICH N IS AN INTEGER OF FROM 3 TO 8 AND R.sup.1 and R.sup.2 are an alkoxy or aralkoxy radical or conjointly are an alkyldioxy radical of 3 to 18 carbon atoms. A magnetic recording tape prepared with a high proportion of such a lubricant is distinguished by high abrasion resistance coupled with a minimum transfer of material to the magnetic heads even under fluctuating climatic conditions.

REFERENCES:
patent: 3492235 (1970-01-01), Matsumoto et al.
patent: 3625760 (1971-12-01), Slovinsky
patent: 3692884 (1972-09-01), Gaskell
patent: 3704152 (1972-11-01), Hartmann et al.
patent: 3719525 (1973-03-01), Patel et al.
patent: 3778308 (1973-12-01), Roller et al.
patent: 3793074 (1974-02-01), Frankenthal et al.

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