C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/166, 96/26,
C09B 29/00 (2006.01) C09B 29/26 (2006.01) C09B 33/00 (2006.01) G03C 1/40 (2006.01) G03C 8/10 (2006.01)
Patent
CA 1178580
ABSTRACT OF THE DISCLOSURE Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusitle compound having a releasable, 2-(2-pryidylazo)-4,5-bis(tertiary amino)phenol black dye moiety or precursor thereof, such as: Image wherein: (a) R represents hydrogen, a hydrolyzable moiety or CAR; (b) R1 and R2 each independently represents an alkyl group of 1 to about 6 carbon atoms, CAR, or can be taken together with the nitrogen atom to which they are attached to complete a 5- or 6-membered heterocyclic ring; (c) R3 and R4 each independently represents an alkyl group of 1 to about 6 carbon atoms, CAR, or can be taken together with the nitrogen to which they are attached to complete a 5- or 6-membered heterocyclic ring, (d) CAR reprtsents a ballasted carrier moiety capable of releasing the diffusible black dye moiety or precursor thereof under alkaline conditions; and (e) n is 0, 1 or 2, with the proviso that when n is 0, then at least one of R, R1, R2, R3, or R4 is CAR.
398497
Eastman Kodak Company
Gowling Lafleur Henderson Llp
LandOfFree
Photographic products and processes employing novel... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photographic products and processes employing novel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic products and processes employing novel... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1168645