Magnetic recording medium containing carbon black having specific properties
US5275879A · kind A · utility
3Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Mar 27, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium having excellent durability and containing carbon black having a mean particle diameter of 25 to 130 nm, a BET specific surface area of 30 to 80 m.sup.2 /g and an oil absorption of 300 to 500 ml/100 g which is incorporated into a magnetic layer of a magnetic recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.