Magnetic recording medium
US4699847A · kind A · utility
16Cited by
17References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1985 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Jul 24, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic recording medium comprising a plastic base film and a magnetic layer, the base film is plasma treated at frequencies in the range of 10 kHz to 200 kHz in an inorganic gas containing at least 5% of oxygen. The magnetic layer is formed on the plasma treated base film by applying a magnetic composition of ferromagnetic fine particles dispersed in a plasticized binder compound comprising a radiation-sensitive modified resin in admixture with a radiation-sensitive modified flexible resin or prepolymer, oligomer or telomer thereof, and exposing the composition to radiation for crosslinking and polymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.