Magnetic recording media
US4333988A · kind A · utility
10Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1979 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Sep 11, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording medium and, more particularly, a recording medium based on a composition exhibiting high dispersibility for finely-divided ferromagnetic powders having excellent abrasion resistance is disclosed in which the magnetic composition comprises a finely-divided ferromagnetic powders dispersed in a binder containing 2-chloroacrylonitrile polymer and a polyurethane prepolymer; in another embodiment of the invention the magnetic composition additionally contains a polyisocyanate compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.