Method of stabilizing organic substrate materials including photographic dye images to light and a photographic material so stabilized
US4256817A · kind A · utility
57Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1978 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | Dec 14, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of stabilizing organic substrate materials having an absorption maximum in the wavelength region of about 300 nm to about 800 nm to light which comprises making coexist with the organic substrate at least one metal complex salt represented by the following general formula (I): ##STR1## wherein Cat represents a divalent or a monovalent cation, and n is 1 or 2. A photographic material thus stabilized is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.