DE1196075B - Verfahren zur Herstellung von Bildern nach dem Diffusionsuebertragungsverfahren - Google Patents
Verfahren zur Herstellung von Bildern nach dem DiffusionsuebertragungsverfahrenInfo
- Publication number
- DE1196075B DE1196075B DEI9925A DEI0009925A DE1196075B DE 1196075 B DE1196075 B DE 1196075B DE I9925 A DEI9925 A DE I9925A DE I0009925 A DEI0009925 A DE I0009925A DE 1196075 B DE1196075 B DE 1196075B
- Authority
- DE
- Germany
- Prior art keywords
- dye
- developer
- image
- silver halide
- substance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 46
- 238000012546 transfer Methods 0.000 title claims description 30
- 230000008569 process Effects 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000009792 diffusion process Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims description 87
- -1 heterocyclic radical Chemical class 0.000 claims description 61
- 239000004332 silver Substances 0.000 claims description 58
- 229910052709 silver Inorganic materials 0.000 claims description 58
- 239000000126 substance Substances 0.000 claims description 56
- 239000000839 emulsion Substances 0.000 claims description 37
- 230000003647 oxidation Effects 0.000 claims description 18
- 238000007254 oxidation reaction Methods 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 125000003118 aryl group Chemical group 0.000 claims description 15
- 238000011161 development Methods 0.000 claims description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 14
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 12
- 150000004056 anthraquinones Chemical class 0.000 claims description 12
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 125000001424 substituent group Chemical group 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 7
- 125000001624 naphthyl group Chemical group 0.000 claims description 7
- 125000003277 amino group Chemical group 0.000 claims description 6
- 125000003545 alkoxy group Chemical group 0.000 claims description 5
- 125000003282 alkyl amino group Chemical group 0.000 claims description 5
- 150000004820 halides Chemical class 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 150000002367 halogens Chemical group 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 claims description 5
- 125000004104 aryloxy group Chemical group 0.000 claims description 4
- 125000003107 substituted aryl group Chemical group 0.000 claims description 4
- 125000002252 acyl group Chemical group 0.000 claims description 3
- 125000001769 aryl amino group Chemical group 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 125000000687 hydroquinonyl group Chemical group C1(O)=C(C=C(O)C=C1)* 0.000 claims description 2
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- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 claims 1
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- CREXVNNSNOKDHW-UHFFFAOYSA-N azaniumylideneazanide Chemical group N[N] CREXVNNSNOKDHW-UHFFFAOYSA-N 0.000 claims 1
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- 239000000243 solution Substances 0.000 description 60
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- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 6
- GAMPNQJDUFQVQO-UHFFFAOYSA-N acetic acid;phthalic acid Chemical compound CC(O)=O.OC(=O)C1=CC=CC=C1C(O)=O GAMPNQJDUFQVQO-UHFFFAOYSA-N 0.000 description 6
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 6
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- QMJDEXCUIQJLGO-UHFFFAOYSA-N [4-(methylamino)phenyl] hydrogen sulfate Chemical compound CNC1=CC=C(OS(O)(=O)=O)C=C1 QMJDEXCUIQJLGO-UHFFFAOYSA-N 0.000 description 5
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- 125000000031 ethylamino group Chemical group [H]C([H])([H])C([H])([H])N([H])[*] 0.000 description 5
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- 125000002947 alkylene group Chemical group 0.000 description 4
- 125000003368 amide group Chemical group 0.000 description 4
- 239000000987 azo dye Substances 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 4
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- ZRPHIANFNBMZLU-UHFFFAOYSA-N 2-[(2,5-dihydroxyphenyl)diazenyl]-3-naphthalen-2-ylbenzene-1,4-diol Chemical compound C1=C(C=CC2=CC=CC=C12)C=1C(=C(O)C=CC1O)N=NC1=C(O)C=CC(=C1)O ZRPHIANFNBMZLU-UHFFFAOYSA-N 0.000 description 2
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
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- 125000000623 heterocyclic group Chemical group 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
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- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
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- ZUNKMNLKJXRCDM-UHFFFAOYSA-N silver bromoiodide Chemical compound [Ag].IBr ZUNKMNLKJXRCDM-UHFFFAOYSA-N 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
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- 238000012545 processing Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- CNHDIAIOKMXOLK-UHFFFAOYSA-N toluquinol Chemical compound CC1=CC(O)=CC=C1O CNHDIAIOKMXOLK-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
-
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
-
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
- C09B43/124—Preparation of azo dyes from other azo compounds by acylation of amino groups with monocarboxylic acids, carbamic esters or halides, mono- isocyanates, or haloformic acid esters
-
- 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
- C09B6/00—Anthracene dyes not provided for above
-
- 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
-
- 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
- G03C8/42—Structural details
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Color Printing (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Coloring (AREA)
- Developing Agents For Electrophotography (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41507354A | 1954-03-09 | 1954-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1196075B true DE1196075B (de) | 1965-07-01 |
Family
ID=23644267
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1066092D Pending DE1066092B (cg-RX-API-DMAC7.html) | 1954-03-09 | ||
| DEI9925A Pending DE1196075B (de) | 1954-03-09 | 1955-03-09 | Verfahren zur Herstellung von Bildern nach dem Diffusionsuebertragungsverfahren |
| DEJ11460A Pending DE1172386B (de) | 1954-03-09 | 1955-03-09 | Verfahren zur Herstellung von Farbstoff-entwicklersubstanzen |
| DEI11459A Pending DE1035660B (de) | 1954-03-09 | 1955-03-09 | Verfahren zur Herstellung von Farbentwicklersubstanzen |
| DE19551419842 Pending DE1419842A1 (de) | 1954-03-09 | 1955-03-09 | Verfahren zur Herstellung von als Farbstoffentwicklersubstanzen geeigneten Farbstoffen der Azo- oder Anthrachinonreihe |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1066092D Pending DE1066092B (cg-RX-API-DMAC7.html) | 1954-03-09 |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEJ11460A Pending DE1172386B (de) | 1954-03-09 | 1955-03-09 | Verfahren zur Herstellung von Farbstoff-entwicklersubstanzen |
| DEI11459A Pending DE1035660B (de) | 1954-03-09 | 1955-03-09 | Verfahren zur Herstellung von Farbentwicklersubstanzen |
| DE19551419842 Pending DE1419842A1 (de) | 1954-03-09 | 1955-03-09 | Verfahren zur Herstellung von als Farbstoffentwicklersubstanzen geeigneten Farbstoffen der Azo- oder Anthrachinonreihe |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE554213A (cg-RX-API-DMAC7.html) |
| CH (7) | CH404832A (cg-RX-API-DMAC7.html) |
| DE (5) | DE1196075B (cg-RX-API-DMAC7.html) |
| FR (2) | FR1168292A (cg-RX-API-DMAC7.html) |
| GB (6) | GB804972A (cg-RX-API-DMAC7.html) |
| NL (2) | NL103504C (cg-RX-API-DMAC7.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1299222B (de) * | 1958-10-16 | 1969-07-10 | Polaroid Corp | Photographisches Diffusionsverfahren |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3053656A (en) * | 1954-07-01 | 1962-09-11 | Polaroid Corp | Photographic silver halide developers containing triazine rings |
| NL247649A (cg-RX-API-DMAC7.html) * | 1959-01-26 | |||
| CA728646A (en) * | 1959-01-26 | 1966-02-22 | Green Milton | Photographic processes, compositions and products |
| US3230083A (en) * | 1959-04-02 | 1966-01-18 | Polaroid Corp | Photographic processes and products |
| NL122760C (cg-RX-API-DMAC7.html) * | 1960-08-22 | |||
| DE1422849B1 (de) * | 1960-08-22 | 1970-07-09 | Eastman Kodak Co | Photographisches,mehrschichtiges Aufzeichnungsmaterial fuer das Farbstoffentwickler-Diffusionsverfahren |
| NL268155A (cg-RX-API-DMAC7.html) * | 1960-08-22 | |||
| DE1422850B1 (de) * | 1960-08-22 | 1970-06-04 | Eastman Kodak Co | Farbstoffentwickler-Diffusionsverfahren zur Herstellung von mehrfarbigen Bildern |
| DE1157484B (de) * | 1960-08-22 | 1963-11-14 | Eastman Kodak Co | Verfahren zum Lichtbestaendigmachen von farbigen, nach einem Farbstoffentwickler verwendenden Diffusionsuebertragungsverfahren hergestellten positiven Bildern |
| BE610704A (cg-RX-API-DMAC7.html) * | 1960-11-23 | |||
| BE607371A (cg-RX-API-DMAC7.html) * | 1960-11-25 | |||
| BE614794A (cg-RX-API-DMAC7.html) * | 1961-03-09 | |||
| US3255002A (en) * | 1961-03-09 | 1966-06-07 | Polaroid Corp | Color photographic process and product |
| US3239339A (en) * | 1961-05-05 | 1966-03-08 | Polaroid Corp | Novel photographic products, compositions and processes |
| US3135605A (en) * | 1962-02-15 | 1964-06-02 | Polaroid Corp | Novel photographic products, processes, and compositions employing novel anthraquinone dye developers |
| US3241963A (en) * | 1962-02-19 | 1966-03-22 | Polaroid Corp | Novel photographic products, processes and compositions |
| US3265505A (en) * | 1962-04-02 | 1966-08-09 | Eastman Kodak Co | Photographic products |
| US3077400A (en) * | 1962-04-26 | 1963-02-12 | Polaroid Corp | Color diffusion transfer using gelatinsilver halide emulsions containing cellulose ethers |
| US3287133A (en) * | 1963-03-01 | 1966-11-22 | Eastman Kodak Co | Photographic dye developer dispersions utilizing water-soluble sulfites |
| US3837852A (en) * | 1972-10-02 | 1974-09-24 | Gaf Corp | Color diffusion transfer process utilizing azo coupling to actuate diffusion of color providing species |
| JPS5421255B2 (cg-RX-API-DMAC7.html) * | 1974-10-08 | 1979-07-28 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2543691A (en) * | 1946-06-07 | 1951-02-27 | Gen Aniline & Film Corp | Azo dyes as silver halide photographic developing agents |
| US2559643A (en) * | 1948-02-19 | 1951-07-10 | Polaroid Corp | Photographic product and process |
| US2647649A (en) * | 1951-06-28 | 1953-08-04 | Onno L Maynard | Trash moving fork for tractors |
| US2661293A (en) * | 1946-10-08 | 1953-12-01 | Polaroid Corp | Process of producing a colored photographic image by means of exhaustion of developer |
-
0
- DE DENDAT1066092D patent/DE1066092B/de active Pending
-
1955
- 1955-03-09 DE DEI9925A patent/DE1196075B/de active Pending
- 1955-03-09 CH CH580962A patent/CH404832A/de unknown
- 1955-03-09 NL NL195422A patent/NL103504C/xx active
- 1955-03-09 CH CH1709055A patent/CH363560A/de unknown
- 1955-03-09 GB GB690555A patent/GB804972A/en not_active Expired
- 1955-03-09 GB GB2850457A patent/GB804973A/en not_active Expired
- 1955-03-09 NL NL195421A patent/NL103503C/xx active
- 1955-03-09 CH CH580762A patent/CH391931A/de unknown
- 1955-03-09 CH CH356356D patent/CH356356A/de unknown
- 1955-03-09 DE DEJ11460A patent/DE1172386B/de active Pending
- 1955-03-09 DE DEI11459A patent/DE1035660B/de active Pending
- 1955-03-09 GB GB3880457A patent/GB804976A/en not_active Expired
- 1955-03-09 CH CH580662A patent/CH386245A/de unknown
- 1955-03-09 GB GB690455A patent/GB804971A/en not_active Expired
- 1955-03-09 GB GB2850557A patent/GB804974A/en not_active Expired
- 1955-03-09 GB GB2850657A patent/GB804975A/en not_active Expired
- 1955-03-09 CH CH580862A patent/CH386444A/de unknown
- 1955-03-09 DE DE19551419842 patent/DE1419842A1/de active Pending
- 1955-03-09 CH CH358327D patent/CH358327A/de unknown
-
1956
- 1956-12-29 FR FR1168292D patent/FR1168292A/fr not_active Expired
- 1956-12-29 FR FR1178429D patent/FR1178429A/fr not_active Expired
-
1957
- 1957-01-16 BE BE554213D patent/BE554213A/xx unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2543691A (en) * | 1946-06-07 | 1951-02-27 | Gen Aniline & Film Corp | Azo dyes as silver halide photographic developing agents |
| US2661293A (en) * | 1946-10-08 | 1953-12-01 | Polaroid Corp | Process of producing a colored photographic image by means of exhaustion of developer |
| US2559643A (en) * | 1948-02-19 | 1951-07-10 | Polaroid Corp | Photographic product and process |
| US2647649A (en) * | 1951-06-28 | 1953-08-04 | Onno L Maynard | Trash moving fork for tractors |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1299222B (de) * | 1958-10-16 | 1969-07-10 | Polaroid Corp | Photographisches Diffusionsverfahren |
Also Published As
| Publication number | Publication date |
|---|---|
| GB804971A (en) | 1958-11-26 |
| CH356356A (de) | 1961-08-15 |
| GB804973A (en) | 1958-11-26 |
| GB804972A (en) | 1958-11-26 |
| BE554213A (cg-RX-API-DMAC7.html) | 1957-07-16 |
| NL195422A (cg-RX-API-DMAC7.html) | 1962-08-15 |
| CH404832A (de) | 1965-12-31 |
| CH386444A (de) | 1965-01-15 |
| CH358327A (de) | 1961-11-15 |
| CH363560A (de) | 1962-07-31 |
| DE1172386B (de) | 1964-06-18 |
| GB804975A (en) | 1958-11-26 |
| FR1178429A (fr) | 1959-05-11 |
| NL103504C (cg-RX-API-DMAC7.html) | 1963-01-15 |
| FR1168292A (fr) | 1958-12-05 |
| DE1066092B (cg-RX-API-DMAC7.html) | |
| NL195421A (cg-RX-API-DMAC7.html) | 1962-08-15 |
| DE1419842A1 (de) | 1968-12-19 |
| GB804974A (en) | 1958-11-26 |
| GB804976A (en) | 1958-11-26 |
| CH386245A (de) | 1964-12-31 |
| DE1035660B (de) | 1958-08-07 |
| NL103503C (cg-RX-API-DMAC7.html) | 1963-01-15 |
| CH391931A (de) | 1965-05-15 |
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