Tape cartridge having 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 tape cartridge, according to one approach, includes a housing, and a magnetic recording tape at least partially stored in the housing. The magnetic recording tape including a recording layer having encapsulated nanoparticles each comprising a magnetic nanoparticle encapsulated by an encapsulating layer, and a polymeric binder binding the encapsulated nanoparticles. A tape cartridge, according to another approach, includes a housing, and a magnetic recording tape at least partially stored in the housing. The magnetic recording tape include an underlayer having encapsulated nanoparticles each comprising a magnetic nanoparticle encapsulated by an aromatic polymer, and a polymeric binder binding the encapsulated nanoparticles.
Claims25
A tape cartridge, comprising:
- a housing;
- and
- a magnetic recording tape at least partially stored in the housing,
- the magnetic recording tape including a recording layer having encapsulated nanoparticles each comprising a magnetic nanoparticle encapsulated by an aromatic polymer-based encapsulating layer, and a polymeric binder binding the encapsulated nanoparticles.
A tape cartridge, comprising:
- a housing;
- and
- a magnetic recording tape at least partially stored in the housing,
- the magnetic recording tape including an underlayer having encapsulated nanoparticles each comprising a magnetic nanoparticle encapsulated by an aromatic polymer, and a polymeric binder binding the encapsulated nanoparticles, wherein the underlayer is characterized as having an absolute value of a tensile storage modulus (E′) thereof greater than 6 GPa.
A tape cartridge, comprising:
- a housing;
- and
- a magnetic recording tape at least partially stored in the housing,
- the magnetic recording tape including an underlayer and a recording layer above the underlayer,
- the underlayer having first encapsulated nanoparticles each comprising a magnetic nanoparticle encapsulated by an aromatic polymer, and a polymeric binder binding the first encapsulated nanoparticles,
- the recording layer having second encapsulated nanoparticles each comprising a magnetic nanoparticle encapsulated by an aromatic polymer-based encapsulating layer, and a polymeric binder binding the second encapsulated nanoparticles.
Dependencies are inferred from the claim text.