Sheet comprising an ion exchanges reducing agent and methods of processing photographic elements in the presence of said sheet
US6316173A · kind A · utility
8Cited by
12References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2000 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Jun 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/407
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention comprises a sheet comprising at least one photographically useful reducing agent ionically bound to an ion exchange matrix. In preferred embodiments of the invention, the sheet further comprises a binder and/or support and the ion exchange matrix comprises particles having an average particle size of less than about 10 micrometers (.mu.m). This invention further comprises methods or processing photographic elements using said sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.