Heat curing and subsequent calendering to produce magnetic recording media
US7314647B1 · kind B1 · utility
0Cited by
14References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 20, 2003 |
| Grant date | Jan 1, 2008 |
| Priority date | — |
| Expiry date | Jun 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for producing a magnetic recording medium includes heat-curing a coated substrate to cure a non-magnetic back coat on the substrate and to cure a magnetic front coat on the substrate, and calendering the heat-cured coated substrate to produce the magnetic recording medium. The calendering optionally is off-line calendering during which the substrate passes between opposed, generally non-compliant rolls. Other methods, and magnetic recording media produced by the disclosed methods, also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.