Production method for magnetic recording medium
US5061516A · kind A · utility
3Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1991 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Jan 3, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/842
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is disclosed the method of preparing a magnetic recording medium having an improved running durability and the excellent electromagnetic conversion characteristics, wherein the magnetic paint for a magnetic layer is prepared by the steps of: PA0 kneading the ferromagnetic powder of 100 parts by weight, the first binder of 3 to 15 parts by weight, and a solvent of 10 to 60 parts by weight under a load of a power consumption of 0.05 to 0.5 KW per kg of the ferromagnetic powder to prepare a mixture thereof; PA0 kneading the second binder and the mixture under the load of the same power consumption to prepare a coating solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.