Film materials comprising colored matting particles
US6190821A · kind A · utility
5Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/151
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photosensitive silver halide film material is disclosed comprising a support and on one or both sides thereof one or more layer(s) comprising a photosensitive silver halide emulsion wherein tabular silver halide crystals having an average thickness of less than 0.25 .mu.m and an average aspect ratio of 2 or more are present characterized in that said photosensitive silver halide emulsion layer(s) comprise(s) blue colored polymeric matting particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.