Diffusion control layers in diffusion transfer photographic products
US4288523A · kind A · utility
15Cited by
16References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1980 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Mar 14, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/54
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Novel polymers comprising recurring units capable of undergoing .beta.-elimination in an alkaline environment are disclosed for use in diffusion control layers in diffusion transfer film units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.