Photographic element containing a thermal dye bleach system
US5266452A · kind A · utility
16Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Apr 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic element containing a thermal-dye-bleach construction includes a thermal nucleophile-generating agent in association with a polymethine dye having a nucleus of general formula (I): ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.