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Class Information
Number: 430/242
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 > Dye image formation process > Using silver salt sensitizer > Using identified dye forming compound other than colorless color developer or dye mordant or using identified organic solvent > Redox cleavable dye or dye precursor releaser
Description: Processes wherein the dye image forming compound comprises a dye or dye precursor moiety and at least one other moiety which after being oxidized or reduced in a medium is cleaved separating the dye or dye precursor moiety from the other moiety to form a dye or dye precursor moiety having a substantially different diffusibility from the uncleaved dye image forming compound.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6124084 |
Silver halide photographic light-sensitive material |
Sep. 26, 2000 |
| 5332654 |
Reversible redox-controlled imaging method |
Jul. 26, 1994 |
| 5233028 |
Dicyanoimidazole compound derivative, and magenta toner, for colored resin, colored molded resin member and a color filter incorporating it |
Aug. 3, 1993 |
| 4810615 |
Colour photographic recording material containing a dye releasing compound for cyan dyes and a colour image produced with these dyes |
Mar. 7, 1989 |
| 4746592 |
Color correction in negative images using positive imaging chemistry |
May. 24, 1988 |
| 4600681 |
Color photographic material with azo dicyanoimidazole dyes |
Jul. 15, 1986 |
| 4594426 |
Benzoxazole derivative intermediates for synthesis of dye releasing redox compounds |
Jun. 10, 1986 |
| 4579805 |
Color photographic recording material containing a thiophene azo dye releaser for cyan dyes |
Apr. 1, 1986 |
| 4524124 |
Color photographic recording material containing a thiazole azo dye releaser for cyan dyes |
Jun. 18, 1985 |
| 4524123 |
Chelatable 4-thienyl imidazole azo dyes, their use in color photographic recording material |
Jun. 18, 1985 |
| 4521506 |
Monoazo pyridinol dyes chelated or capable of being chelated with metal ions and their use for image production |
Jun. 4, 1985 |
| 4520095 |
Photographic light-sensitive element |
May. 28, 1985 |
| 4439513 |
Color photographic light-sensitive material with naphthol redox dye releaser |
Mar. 27, 1984 |
| 4425422 |
Formation of color photographic image with azo dye containing alkoxy or thioalkoxy metal chelating group |
Jan. 10, 1984 |
| 4420550 |
Photographic products and processes employing novel nondiffusible magenta dye-releasing compounds and precursors thereof |
Dec. 13, 1983 |
| 4419435 |
Photographic products and processes employing 6-heterocyclylazo-3-pyridinol nondiffusible cyan dye-releasing compounds and precursors thereof |
Dec. 6, 1983 |
| 4409315 |
Reducing post-process D.sub.min increase in positive redox dye-releasing image transfer systems using oxidants in cover sheets |
Oct. 11, 1983 |
| 4407928 |
Use of ketal blocked quinones to reduce post-process D.sub.min increase in positive redox dye-releasing image transfer systems |
Oct. 4, 1983 |
| 4407930 |
Photographic products and processes employing substituted sulfonamidophenol or sulfonamidonaphthol dye-releasers |
Oct. 4, 1983 |
| 4407931 |
Photographic products and processes employing nondiffusible yellow azo metal complexed dye-releasing compounds and precursors thereof |
Oct. 4, 1983 |
| 4396699 |
Process for the production of a multicolor image by image-wise dye diffusion transfer |
Aug. 2, 1983 |
| 4391896 |
Mixture of nondiffusible redox dye-releasers for curve shape control |
Jul. 5, 1983 |
| 4386150 |
Novel image dye-providing materials and photographic products and processes |
May. 31, 1983 |
| 4381339 |
Photographic recording material and non-diffusing compounds to be used in the material which contains a photographically active group which can be split off |
Apr. 26, 1983 |
| 4369243 |
Photographic recording material for diffusion processes and useful non-diffusing sulfilimine compounds |
Jan. 18, 1983 |
| 4366240 |
Color photographic recording material containing non-diffusing electron donor precursor compounds |
Dec. 28, 1982 |
| 4363865 |
Imido methyl blocked photographic dyes and dye releasing compounds |
Dec. 14, 1982 |
| 4357410 |
Photographic products and processes employing novel nondiffusible pyridylazo(dialkylamino) phenol magenta dye-releasing compounds and precursors thereof |
Nov. 2, 1982 |
| 4357412 |
Photographic products and processes employing novel nondiffusible bridged azoaminophenol magenta dye-releasing compounds and precursors thereof |
Nov. 2, 1982 |
| 4357411 |
Photographic products and processes employing novel nondiffusible 2-(2-pyridylazo)-4,5-bis(tertiary amino)phenol black dye-releasing compounds and precursors thereof |
Nov. 2, 1982 |
| 4353975 |
Dye-diffusion transfer process |
Oct. 12, 1982 |
| 4346161 |
Photographic products and processes employing novel nondiffusible 6-(2-thienylazo)-3-pyridinol cyan dye-releasing compounds and precursors thereof |
Aug. 24, 1982 |
| 4336322 |
Color photographic light-sensitive material |
Jun. 22, 1982 |
| 4323635 |
Direct reversal photographic color material |
Apr. 6, 1982 |
| 4308336 |
Color photographic sensitive materials |
Dec. 29, 1981 |
| 4287292 |
Photographic products and processes employing novel nondiffusible 6-arylazo-3-pyridinol magenta dye-releasing compounds and precursors thereof |
Sep. 1, 1981 |
| 4273855 |
Photographic diffusion transfer process and material for the production of color images and suitable compounds therefor |
Jun. 16, 1981 |
| 4269928 |
Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process |
May. 26, 1981 |
| 4264704 |
Novel xanthene dye developers |
Apr. 28, 1981 |
| 4264701 |
Magenta dye developers |
Apr. 28, 1981 |
| 4258120 |
Substituted sulfonamido compounds, photosensitive elements, film units, and processes for retaining a photographic image with same |
Mar. 24, 1981 |
| 4258117 |
Dye image reversal processes and image transfer film units |
Mar. 24, 1981 |
| 4256831 |
Light-sensitive photographic element comprising a magenta image dye-providing compound |
Mar. 17, 1981 |
| 4256826 |
Bleach-fix sheets |
Mar. 17, 1981 |
| 4250246 |
Photographic light-sensitive sheet for the color diffusion transfer process |
Feb. 10, 1981 |
| 4242435 |
Photographic dye diffusion transfer process |
Dec. 30, 1980 |
| 4234672 |
Shifted photographic dyes and compositions, elements and processes employing them |
Nov. 18, 1980 |
| 4232107 |
Photographic material suited for use in diffusion transfer photography and method of diffusion transfer photography using such material |
Nov. 4, 1980 |
| T994003 |
Azo dyes, azo dye-releasing compounds and photographic products and processes employing them |
May. 6, 1980 |
| 4199355 |
Positive-working immobile photographic compounds and photographic elements containing same |
Apr. 22, 1980 |
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