Photographic processing composition containing polyvinyl aminimide
US4080206A · kind A · utility
12Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1976 |
| Grant date | Mar 21, 1978 |
| Priority date | — |
| Expiry date | May 13, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/38
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Diffusion transfer products and processes are disclosed wherein the processing composition includes, as the viscosity increasing component thereof, a polymer containing recurring groups of the formula: ##STR1## wherein R is hydrogen, alkyl or halogen; R.sub.1 is alkyl; R.sub.2 and R.sub.3 each are alkyl, aryl or alkaryl or R.sub.2 and R.sub.3 together may comprise an alkylene group to form a heterocyclic ring with the nitrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.