Stabilization of optical information storage media by incorporation of nitrogen containing compounds
US5045440A · kind A · utility
7Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Feb 7, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a method for stabilizing an optical information medium by incorporating an effective amount of a specific nitrogen containing compound into the medium. The specific nitrogen containing compounds are poly(2-vinyl pyridine), poly(4-vinyl pyridine), pentaethylene hexamine and acridine orange base. Incorporation of one of the nitrogen compounds into the optical information medium prolongs the useful life of the medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.