High temperature, high humidity stabilization process for optical information storage media containing polycarbonate substrates
US5096742A · kind A · utility
0Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Jan 9, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/26
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a method for stabilizing an optical recording medium containing a polycarbonate substrate. The method comprises treating the substrate material in a high temperature, high humidity environment for an extended period of time. Dramatic improvements in the useful life of the optical recording medium in which the treated polycarbonate substrate is used have been found to result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.