Magnetic disc
US4828925A · kind A · utility
4Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1986 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Jun 18, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disc which comprises a non-magnetic support substrate and a magnetic layer thereon consisting of a magnetic coating comprising ferromagnetic powder, a binder, an aliphatic acid ester having a melting point not higher than 10.degree. C. and an aliphatic acid ester having a melting point from 15.degree. to 60.degree. C., the magnetic coating having improved lubricity and durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.