Photographic system with quaternary releaser
US4588672A · kind A · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1985 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Aug 8, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/156
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is described a photographic system wherein development of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound which releases a quaternary in alkaline environment. Photographic products and processes utilizing such compounds are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.