Process for producing magnetic recording materials
US4557948A · kind A · utility
5Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1984 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Aug 6, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/725
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for producing a magnetic recording material comprising a support having a thin metal film layer provided thereon is described, the process comprising the steps of (1) coating a thin magnetic metal film having a water contact angle of at least 25.degree. with a polymer solution to form a thin polymer layer, drying the thin polymer layer, and providing a lubricant on the thin polymer layer, or (2) coating the thin magnetic metal film with a lubricant-containing polymer solution to form a lubricant-containing polymer layer, and drying the lubricant-containing polymer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.