Magnetischer Aufzeichnungsträger mit zerfurchter rückseitiger Beschichtung aus Blockpolymeren

Magnetischer Aufzeichnungsträger mit zerfurchter rückseitiger Beschichtung aus Blockpolymeren

An improved magnetic recording medium comprising a nonmagnetic support having opposed first and second major surfaces, a magnetic coating on said first major surface, and a backside coating on said second major surface. The backside coating comprises a block copolymer having the general formula: (A-...

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Bibliographische Detailangaben
Hauptverfasser: EVANS, CHRISTOPHER, M., SAINT PAUL, MN 55133-3427, US, SEHON, RUSSELL, D., SAINT PAUL, MN 55133-3427, US, NORMAN, COLIN, F., W., SAINT PAUL, MN 55133-3427, US, BENGTSON, BRUCE, H., SAINT PAUL, MN 55133-3427, US
Format: Patent
Sprache:ger
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:An improved magnetic recording medium comprising a nonmagnetic support having opposed first and second major surfaces, a magnetic coating on said first major surface, and a backside coating on said second major surface. The backside coating comprises a block copolymer having the general formula: (A-B)n-Y, wherein: Y is a multifunctional coupling moiety; n is 2 to 15; A is a polymeric segment having a Tg of greater than about 70 DEG C; B is a polymeric segment having a Tg of less than about 25 DEG C, wherein B is incompatible with A.