Magnetic recording medium
US4735844A · kind A · utility
2Cited by
12References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1985 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Apr 25, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprising a non-magnetic substrate, a magnetic recording layer formed on one side of the substrate and a back coating layer formed on the other side of the substrate, characterized in that the back coating layer is a radiation-cured coating layer containing a fine particulate pigment having an average particle size of the primary particles of at most 50 m.mu.m and a specific surface area of at least 35 m.sup.2 /g as measured by BET method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.