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Class Information
Number: 430/226
Name: Radiation imagery chemistry: process, composition, or product thereof > Transfer procedure between image and image layer, image receiving layers, or element containing an image receiving layer or an ingredient for forming an image receiving layer > Diffusion transfer process, element, or identified image receiving layers therefor > Element or identified image receiving layers for dye image formation > Element containing silver salt sensitizer or either element or image receiving layer for use therewith > Identified dye image forming compound other than colorless color developer or dye mordant containing or identified organic solvent for an incorporated ingredient > Coupler with coupling-off ballast, dye or dye precursor moiety
Description: Subject matter wherein the dye image forming compound comprises a coupler moiety substituted at its coupling site with at least one other moiety selected from dye, dye precursor or ballast moieties and which is capable upon a coupling, i.e., condensation reaction, at its coupling site with another compound of cleaving the other moiety from the coupler moiety.


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
6645711 Silver halide photographic light-sensitive material Nov. 11, 2003
6582657 Dosimeter and method for using the same Jun. 24, 2003
6569612 Photographic element containing a high-dye-yield coupler for producing a yellow hue May. 27, 2003
6513212 Scannable photographic element containing high extinction high-dye-yield cyan couplers Feb. 4, 2003
6495304 Color-developing agent, silver halide photographic light-sensitive material and image-forming method Dec. 17, 2002
6340561 Heat developable color photosensitive material Jan. 22, 2002
6337176 Silver halide color photographic lightsensitive material Jan. 8, 2002
6277537 Dye diffusion image separation systems with thermal solvents Aug. 21, 2001
6187525 Color photographic elements of increased sensitivity containing one equivalent coupler Feb. 13, 2001
6183932 Silver halide photosensitive material for color photography and color image forming method Feb. 6, 2001
6180324 Heat developable color photographic material and image-forming system using the same Jan. 30, 2001
6132944 Photographic element containing high dye-yield couplers Oct. 17, 2000
6130022 Heat developable color photographic light-sensitive material Oct. 10, 2000
6127088 Heat developable color light-sensitive material Oct. 3, 2000
6124084 Silver halide photographic light-sensitive material Sep. 26, 2000
6114080 Chromogenic black and white imaging for heat image separation Sep. 5, 2000
5998121 Photographic element with silver halide emulsion layer of low developability and having an associated high dye-yield coupler Dec. 7, 1999
5976756 Color diffusion transfer silver halide photographic materials and process for forming images Nov. 2, 1999
5885760 Color photographic recording material Mar. 23, 1999
5882837 Heat-developable color light-sensitive material Mar. 16, 1999
5871880 Silver halide color photographic light-sensitive material and image-forming method Feb. 16, 1999
5830632 Photographic element containing dispersions of high dye-yield couplers having improved photographic activity Nov. 3, 1998
5731140 Pyrazolylazophenol dye Mar. 24, 1998
5716754 Image-recording materials Feb. 10, 1998
5654123 Multilayer color photographic element containing a solubilized blocked dye moiety Aug. 5, 1997
5630927 Silver halide color light-sensitive material May. 20, 1997
5612173 One equivalent couplers and low PKA release dyes Mar. 18, 1997
5595853 Optical image forming material Jan. 21, 1997
5585231 Heat developable color light-sensitive material with pyrazolotriazole containing dye Dec. 17, 1996
5534399 Silver halide color photographic photosensitive material Jul. 9, 1996
5512414 Solid particle coupler dispersions for color diffusion transfer elements Apr. 30, 1996
5512410 Heat image separation with phenolic thermal solvents and dye releasing couplers Apr. 30, 1996
5470688 Heat development of elements containing methine-dye releasing couplers Nov. 28, 1995
5459022 Silver halide color photographic material containing a yellow-colored cyan coupler and a compound capable of releasing a bleaching accelerator or a precursor thereof, and a method for processi Oct. 17, 1995
5457004 Photographic element containing a high dye-yield coupler with methine dye chromophore Oct. 10, 1995
5455140 Methine-dye releasing couplers for heat image separation systems Oct. 3, 1995
5447819 Photographic element containing high dye-yield couplers having improved reactivity Sep. 5, 1995
5441854 Photographic image forming process utilizing a barrier layer for diffusible dye containment Aug. 15, 1995
5432041 Yellow and magenta chromogenic leuco dyes for photothermographic elements Jul. 11, 1995
5411840 Low volume processing for establishing boundary conditions to control developer diffusion in color photographic elements May. 2, 1995
5403703 Silver halide color photographic light-sensitive material, and method or processing the same Apr. 4, 1995
5370967 Barrier layer for dye containment in photographic elements Dec. 6, 1994
5364745 Azoaniline masking couplers for photographic materials Nov. 15, 1994
5358828 Photographic element and process comprising a bleach accelerator releasing compound Oct. 25, 1994
5356750 Dye releasing couplers for heat image separation systems Oct. 18, 1994
5354642 Polymeric couplers for heat image separation systems Oct. 11, 1994
5354650 Photographic elements containing release compounds Oct. 11, 1994
5342730 Dye releasing couplers for color diffusion transfer elements with dye barrier layers Aug. 30, 1994
5326680 Silver halide color photographic light-sensitive material Jul. 5, 1994
5322758 Integral color diffusion transfer element for large volume development Jun. 21, 1994

1 2 3 4


 
 
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