Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1978-03-30
1980-04-29
Pianalto, Bernard D.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428900, H01F 1002
Patent
active
042006783
ABSTRACT:
A flexible multilayer magnetic recording medium exhibiting an improved signal-to-print-through ratio coupled with an improved maximum output level and diminished dc noise, comprising a non-magnetic base and, applied thereto, at least two superposed layers consisting of a binder with magnetizable particles uniformly dispersed therein, the upper magnetic layer containing a magnetic pigment giving a signal-to-print-through ratio of less than 55db and the lower magnetic layer(s) containing a magnetic pigment giving a signal-to-print-through ratio of 55 db or more.
REFERENCES:
patent: 3761311 (1973-09-01), Perrington et al.
Spratt, 1965, pp. 115-117, Magnetic Tape Recording.
Buettner Franz
Hammon Fritz
Hartmann Job-Werner
Ohlinger Manfred
Pister Philipp
BASF - Aktiengesellschaft
Pianalto Bernard D.
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