Diffusion control layers in diffusion transfer photographic products
US4461824A · kind A · utility
2Cited by
4References
52Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1982 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | Dec 29, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Polymers comprising recurring units having cyclic .beta.-elimination moieties capable of undergoing .beta.-elimination in an alkaline environment and are disclosed for use in diffusion control layers in diffusion transfer photographic products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.