Imaging medium
US5445917A · kind A · utility
9Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Oct 7, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/0045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Acid can be generated by exposing a superacid precursor to actinic radiation effective to generate superacid from the superacid precursor and heating the superacid in admixture with a secondary acid generator capable of undergoing thermal decomposition to produce a secondary acid. The superacid catalyzes decomposition of the secondary acid generator, thus increasing the quantity of strong acid present in the medium. The resultant secondary acid can be used to effect a color change in an acid-sensitive material, so providing an imaging process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.