Erasable recording medium comprising a dimer acid polyamide resin
US4478782A · kind A · utility
11Cited by
2References
66Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1983 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Sep 14, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3175
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an erasable recording medium and a method for recording and erasing same. The erasable recording medium comprises a thermally stable substrate and a polymeric layer deposited on the substrate comprised of a dimer acid polyamide. Such a recording medium has an excellent dimensional and mechanical stability on storage, readily and easily records information, and has an ability to be easily and completely erased when erasure is desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.