Cyan coupler, and stabilizer-containing photographic element and process
US6132947A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1999 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Mar 10, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/39256
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith: (A) a phenolic cyan dye-forming "NB coupler"; PA1 (B) a high boiling solvent having Formula (II): EQU R.sup.3 OO--C--(--G--)--C--OO--R.sup.4 (II) PA1 wherein: PA2 R.sup.3 and R.sup.4 represent independently selected alkyl or aryl groups; and PA2 G represents an alkyl (including cycloalkyl and aralkyl) containing linking group; and PA1 (C) a stabilizer having Formula (III): ##STR1## wherein each Y is an independently selected substituent and m is 0 to 4; and PA2 each T is an independently selected substituent and p is 0 to 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.