Process for forming tape media having synergistic magnetic recording layer and underlayer
AssigneeInternational Business Machines Corporation
InventorRichard Bradshaw
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Abstract
A method, according to one approach, includes forming an underlayer of a magnetic recording medium. 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. A magnetic recording layer is formed above the underlayer. The magnetic 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 method, comprising:
- forming an underlayer of a magnetic recording medium, 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
- forming a magnetic recording layer above the underlayer, the magnetic 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 forming the underlayer includes mixing the first encapsulated magnetic nanoparticles with the first polymeric binder for forming a mixture, and spray coating the mixture onto a structure.
A method, comprising:
- forming an underlayer of a magnetic recording medium, 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,
- wherein forming the underlayer includes mixing the first encapsulated magnetic nanoparticles with the first polymeric binder for forming a mixture, and
- spray coating the mixture onto a structure;
- and
- forming a magnetic recording layer above the underlayer, the magnetic 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 forming the recording layer includes spray coating a mixture of the second magnetic nanoparticles, a precursor to the encapsulating layer, and polymeric binder onto the underlayer.
Dependencies are inferred from the claim text.