Tape media having synergistic magnetic recording layer and underlayer
AssigneeInternational Business Machines Corporation
InventorRichard Bradshaw
Life of this patent
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Abstract
A product, according to one approach, includes an underlayer 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.
Claims25
A product, comprising:
- an 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 product, comprising:
- an 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,
- wherein the first aromatic polymer includes methylene bis diphenyl carbamate.
Dependencies are inferred from the claim text.