Dye sensitized photographic imaging system
US4859572A · kind A · utility
73Cited by
14References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | May 2, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/117
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic imaging system is disclosed comprised of a hardenable organic component containing ethylenic unsaturation sites and an initiator system for ethylenic addition. The initiator system is comprised of an electron acceptor activator, an electron donor activator, and, acting as a photosensitizer, a dye capable of absorbing imaging radiation. The dye has a reduction potential related to that of the electron acceptor activator and an oxidation potential related to that of the electron donor activator to permit each to release a free radical upon excitation of the photosensitizer by exposure to actinic radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.