Photographic element and compound and process useful therewith

US6296997A · kind A · utility

Assignee

• EASTMAN KODAK COMPANY · US

Inventors

• Robert F. Romanet · Rochester, US
• William B. Vreeland · Webster, US
• John W. Harder · Rochester, US
• Christopher T. Brown · Rochester, US
• Scott Conley · Rochester, US
• Michael P. Youngblood · Rochester, US

Key dates

• Filing date: Nov 7, 2000
• Grant date: Oct 2, 2001
• Expiry date: Nov 7, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C5/386
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a bicyclic azole dye-forming coupler compound having Formula I: ##STR1## wherein: PA1 BA represents a bicyclic azole coupler nucleus with --(C(R.sup.1)(R.sup.2)).sub.P -- bonded to a ring carbon in a non-coupling position of the coupler nucleus; PA1 p is 1 or 2, and each R.sup.1 and R.sup.2 is independently selected from H and a substituent group, provided that any two of R.sup.1 and R.sup.2 may join to form a ring; PA1 R.sup.a and R.sup.b are each independently selected from H and a substituent group, provided that substituent groups may join to form a ring; PA1 each Y is an independently selected substituent and m is 0-4; PA1 X is selected from the group consisting of --C(O)--, --S(O).sub.2 --, --S(O)--, and --P(O)(OH)--; PA1 W is a connecting group having a chain of up to four atoms between X and Z, and n=0 or 1; and PA2 a) when n=0, Z is --NHR.sup.5 where R.sup.5 is H or a substituent, and PA2 b) when n=1, Z is selected from --OH, --SO.sub.2 NHR.sup.5, and --NHR.sup.6 where PA1 R.sup.5 is H or a substituent group and R.sup.6 is a substituent bonded to --NH--…