Photographic element comprising antistatic layer
US5914222A · kind A · utility
10Cited by
29References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1997 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Sep 24, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/89
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic element comprising a polymeric film base, a silver halide emulsion layer, and an antistatic layer comprising a colloidal vanadium oxide and a vinyl addition polymer dispersion in a dry weight ratio of from 1:30 to 1:500. The antistatic layer may be present as a backing layer on the side of the base opposite the silver halide emulsion layer, as a subbing layer between the base and the emulsion layer in a single or double side coated photographic element, and/or as a subbing layer between the base and a different backing layer. No barrier layer is used over the antistatic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.