Photographic elements containing high-boiling esters
US6054258A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jun 24, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/39232
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention disclosed is a photographic element comprising a support bearing at least one silver halide emulsion and at least one high-boiling solvent of structure I, below: ##STR1## wherein: m is 0, 1 or 2; each R.sub.1 is an individually selected alkyl group with up to four carbon atoms; n is 2 to 5; each R.sub.2 and R.sub.3 may be the same or different and is individually selected from hydrogen or an alkyl group with up to four carbon atoms; p is 0 to 3; each R.sub.4 is independently a methyl or ethyl group; and the sum of the number of carbon atoms in each R.sub.1 plus each R.sub.2 plus each R.sub.3 plus each R.sub.4 taken together is three to seven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.