Tape media having synergistic magnetic recording layer and underlayer
AssigneeInternational Business Machines Corporation
InventorRichard Bradshaw
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Abstract
A magnetic recording tape, in accordance with one aspect of the present invention, includes a substrate, an underlayer formed above the substrate, and a magnetic recording layer formed above the underlayer. The underlayer includes first encapsulated nanoparticles each comprising a first magnetic nanoparticle encapsulated by a first aromatic polymer, and a first polymeric binder binding the first encapsulated nanoparticles. The recording layer includes second encapsulated nanoparticles each comprising a second magnetic nanoparticle encapsulated by an encapsulating layer, and a second polymeric binder binding the second encapsulated nanoparticles.
Claims20
A magnetic recording tape, comprising:
- a substrate;
- an underlayer formed above the substrate, the underlayer comprising:
- first encapsulated nanoparticles each comprising a first magnetic nanoparticle encapsulated by a first aromatic polymer, and
- a first polymeric binder binding the first encapsulated nanoparticles;
- and
- a magnetic recording layer formed above the underlayer, the recording layer comprising:
- second encapsulated nanoparticles each comprising a second magnetic nanoparticle encapsulated by an encapsulating layer, and
- a second polymeric binder binding the second encapsulated nanoparticles.
A cartridge, comprising:
- a housing;
- and
- a magnetic recording tape in the housing, the magnetic recording tape comprising an underlayer having first encapsulated nanoparticles each comprising a first magnetic nanoparticle encapsulated by a first aromatic polymer, and a first polymeric binder binding the first encapsulated nanoparticles,
- the magnetic recording tape further comprising a magnetic recording layer formed above the underlayer, the recording layer having second encapsulated nanoparticles each comprising a second magnetic nanoparticle encapsulated by an encapsulating layer, and a second polymeric binder binding the second encapsulated nanoparticles.
Dependencies are inferred from the claim text.