Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
  • C09B1/16—Amino-anthraquinones
  • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
  • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
  • C09B1/28—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
  • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
  • G03C5/29—Development processes or agents therefor
  • G03C5/30—Developers
  • G03C5/3021—Developers with oxydisable hydroxyl or amine groups linked to an aromatic ring
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
  • G03C8/02—Photosensitive materials characterised by the image-forming section
  • G03C8/04—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
  • G03C8/06—Silver salt diffusion transfer
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
  • G03C8/02—Photosensitive materials characterised by the image-forming section
  • G03C8/08—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds
  • G03C8/10—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors
  • G03C8/12—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors characterised by the releasing mechanism
  • G03C8/14—Oxidation of the chromogenic substances
  • G03C8/16—Oxidation of the chromogenic substances initially diffusible in alkaline environment
  • G03C8/18—Dye developers

Definitions

• One object of this invention is to provide novel chemical compounds and suitable syntheses for their preparation.
• Another object of this invention is to provide novel chemical compounds useful as photographic developing agents and as intermediates.
• the invention accordingly comprises the several steps and the relation and order of one or more of such steps with respect to each of the others, and the product possessing the features, properties and the relation of elements which are exemplified in the following detailed disclosure, and the scope of the application of which will be indicated in the claims.
• novel compounds of this invention may be represented by the formula:
• each Y may be an unsubstituted, an alkyl-substituted or a halogen-substituted ortho or para dihydroxyfp'heinyl group;
• R is a hydrogen, methyl or ethyl group;
• R is a hydrogen or alkyl group and preferably an alkyl group containing no more than 5 carbon atoms such "as'a methyl, ethyl, propyl, etc.
• R is an alkyljefne group and preferably an alkylene group containing inn more than 5 carbon atoms, such as i methylene 'CH ethylene -CH CH propylene CH CH CH isopropylene on, 3n
• each Y is a p-dihydroxyphenyl group.
• Such compounds may be represented by the formula:
• novel compounds of this invention may be prepared by condensing an amine of the structure:
• CHzCHzNHz OHs may be made of:
• Example 1 19 gms. of 2,5-dimethoxyphenethylamine and 23 gms.
• novel compounds of this invention are useful as photographic developing agents.
• a suitable developing composition utilizing one of the novel compounds of this invention mention may be made of thefollowing composition:
• composition it will be understood that it is within the scope of this invention to vary the above composition to suit particular needs.
• the percentage of materials may be varied and additional materials useful in photographic processes may be added. If the composition is to be spread on a silver halide emulsion, a film-forming thickening agent such, for example, as sodium carboxymethyl cellulose, may be added.
• novel compounds of this invention are useful as developing agents in diffusion transfer processes, both dye and silver transfer, and are especially useful in such photographic processes wherein it is desired to eliminate or minimize the need for washing or stabilizing operations in liquid baths subsequent to the formation of the silver print. Examples of such processes are disclosed in US. Patent No. 2,647,056 to Edwin H. Land.
• the utility of the developers of this invention is by no means limited to diffusion transfer reversal processes, for they may be satisfactorily employed in conventional multistage multibath photographic processes in black-andwhite or color photography. Where the herein disclosed compounds are employed in dilfusion transfer processes of the type disclosed in the said patent to Edwin H.
• the novel developer composition may have incorporated therein as a further ingredient a silver halide solvent such as sodium tlhiosulfate.
• a silver halide solvent such as sodium tlhiosulfate.
• novel compounds of this invention are again useful as intermediates.
• novel compounds of this invention are further useful as antioxidants in petroleum products, etc.
• a process for developing a photosensitive silver halide emulsion which comprises treating an exposed silver halide emulsion with an aqeuous alkaline solution of a compound of the formula:
• Y is selected from the group consisting of unsubstituted, alkyl-substituted and halogen-substituted ortho and para dihydroxyphenyl groups; R is selected from the group consisting of hydrogen, methyl and ethyl groups; R is selected from the group consisting of hydrogen and alkyl groups; and R is an alkylene group, for a sufiicient time to develop the latent image to silver.
• each Y is a p-dihydroxyphenyl group.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Coloring (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=27102453

Family Applications (1)

Country Status (5)

Cited By (10)

Citations (9)

Family Cites Families (2)

• 0
  • BE BE570596D patent/BE570596A/xx unknown
• 1957
  • 1957-08-26 US US680405A patent/US2949359A/en not_active Expired - Lifetime
• 1958
  • 1958-08-12 DE DEI15224A patent/DE1111936B/de active Pending
  • 1958-08-14 GB GB26188/58A patent/GB891767A/en not_active Expired
  • 1958-08-25 FR FR1210863D patent/FR1210863A/fr not_active Expired

Patent Citations (9)

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