MAGNETIC RECORDING MEDIUM HAVING OPAQUE POLYESTERFILM BASE

A magnetic recording medium has a biaxially-oriented polyester film base which includes carbon black beads having a median diameter from 50 to 500 nm and is substantially free from beads or agglomerates more than 5 micrometers in diameter. The beads provide opacity such as is often required of the f...

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Bibliographische Detailangaben
Hauptverfasser: DONLAN, JOHN F, RENALLS, BRENDA L, PEDROTTY, DOUGLAS G
Format: Patent
Sprache:eng
Schlagworte:
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