Patent ID: 6551768
Filing Date: 2003-04-22
Classification: C08F,G03C,Y10S

Abstract:
An imaging element comprising an imaging layer having associated therewith a compound represent by the following structure: wherein:PUG is a photographically useful group connected to the rest of the molecule via a heteroatom; TIME is a timing group; l is 0 or 1; m is 0 or 1; provided that when m=0 then 1=0; X is carbon atom, aryl group or heteroaromatic group; and Y is z independently selected substituents, electron donating or electron withdrawing, and z is 0 to 7; and wherein additionally two substituents Y can join to form a ring; and wherein LINK1 and LINK2 are linking groups independently having the following structure: â€ƒwherein X represents carbon or sulfur; Y represents oxygen, sulfur or Nâ€”R1, where R1 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl; p is 1 or 2; Z represents carbon, oxygen or sulfur; r is 0 or 1; with the proviso that when X is carbon, both p and r are 1, when X is sulfur, Y is oxygen, p is 2 and r is 0; # denotes the bond to PUG; $ denotes the bond to TIME.