Magnetic recording medium
US4546044A · kind A · utility
8Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1983 |
| Grant date | Oct 8, 1985 |
| Priority date | — |
| Expiry date | Apr 18, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31971
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium having a magnetic layer containing a urethane resin having a tensile strength of less than 200 kg/cm.sup.2 and an elongation at break of 900% or more, and another urethane resin having a tensile strength of 200 kg/cm.sup.2 or more and an elongation at break of less than 900%. This recording medium has good surface properties, good magnetic particles' orientation, great durability, and high wear resistance and produces high output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.