C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
96/117, 260/314,
C09B 57/00 (2006.01) C07D 209/08 (2006.01) C07D 209/38 (2006.01) C07D 231/56 (2006.01) C07D 233/90 (2006.01) C07D 233/94 (2006.01) C07D 235/06 (2006.01) C07D 249/04 (2006.01) C07D 263/58 (2006.01) G03C 1/06 (2006.01) G03C 7/305 (2006.01)
Patent
CA 1060897
Abstract for the Disclosure A light-sensitive color photographic material containing at least one silver halide emulsion layer and a 2-equivalent yellow coupler which carries at the coupling position a 5- membered heterocyclic unsaturated ring with at least one nitrogen atom which nitrogen atom is attached to the coupling position of the yellow coupler and which unsaturated ring has in the position adjacent to the said nitrogen atom an ethylenic double bond which forms part of an olefinically unsaturated or of an aromatic 5-membered heterocyclic ring, which ring can be split off in the coupling reaction. me new 2-equivalent yellow couplers are easily to prepare, highly reactive and photographically substantially inert.
201911
Boie Immo
Lowski Dieter
LandOfFree
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