Control of pressure-fog with gelatin-grafted and case-hardened gelatin-grafted soft polymer latex particles
US5066572A · kind A · utility
34Cited by
10References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1990 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Mar 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/162
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention describes a substantially less pressure sensitive photographic film comprising a support, at least one light sensitive silver halide element, and an overlaying element comprising gelatin-grafted or case-hardened gelatin-grafted soft polymer particle composite element. The incorporation of such an overlaying composite particle cushioning layer does not compromise either the physical properties or physical integrity of the film unit. This invention is particularly suitable for highly pressure sensitive tabular grain emulsions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.