CA1071456A - Process for the production of masked positive colour images by the silver dye bleach process - Google Patents
Process for the production of masked positive colour images by the silver dye bleach processInfo
- Publication number
- CA1071456A CA1071456A CA238,170A CA238170A CA1071456A CA 1071456 A CA1071456 A CA 1071456A CA 238170 A CA238170 A CA 238170A CA 1071456 A CA1071456 A CA 1071456A
- Authority
- CA
- Canada
- Prior art keywords
- silver
- layer
- dyestuff
- colour
- parasitic
- 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.)
- Expired
Links
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 97
- 239000004332 silver Substances 0.000 title claims abstract description 97
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000008569 process Effects 0.000 title claims abstract description 51
- 239000007844 bleaching agent Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000975 dye Substances 0.000 claims abstract description 100
- 239000000839 emulsion Substances 0.000 claims abstract description 65
- 239000000463 material Substances 0.000 claims abstract description 45
- -1 silver halide Chemical class 0.000 claims abstract description 36
- 230000003071 parasitic effect Effects 0.000 claims abstract description 31
- 229910021612 Silver iodide Inorganic materials 0.000 claims abstract description 18
- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229940045105 silver iodide Drugs 0.000 claims abstract description 10
- 238000000151 deposition Methods 0.000 claims abstract description 7
- 238000009792 diffusion process Methods 0.000 claims abstract description 7
- 150000003378 silver Chemical class 0.000 claims abstract description 7
- 239000003446 ligand Substances 0.000 claims abstract description 6
- 239000003086 colorant Substances 0.000 claims description 22
- 238000004061 bleaching Methods 0.000 claims description 19
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 claims description 19
- 238000011161 development Methods 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000003595 spectral effect Effects 0.000 claims description 9
- 230000035945 sensitivity Effects 0.000 claims description 8
- 239000004133 Sodium thiosulphate Substances 0.000 claims description 4
- 150000004820 halides Chemical class 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 4
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 4
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 3
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 claims description 3
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- ORWQBKPSGDRPPA-UHFFFAOYSA-N 3-[2-[ethyl(methyl)amino]ethyl]-1h-indol-4-ol Chemical compound C1=CC(O)=C2C(CCN(C)CC)=CNC2=C1 ORWQBKPSGDRPPA-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 143
- 230000000873 masking effect Effects 0.000 description 23
- 210000004940 nucleus Anatomy 0.000 description 20
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 12
- 230000033458 reproduction Effects 0.000 description 12
- 239000001828 Gelatine Substances 0.000 description 11
- 230000018109 developmental process Effects 0.000 description 11
- 229920000159 gelatin Polymers 0.000 description 11
- 235000019322 gelatine Nutrition 0.000 description 11
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 6
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- PJUIMOJAAPLTRJ-UHFFFAOYSA-N monothioglycerol Chemical compound OCC(O)CS PJUIMOJAAPLTRJ-UHFFFAOYSA-N 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N thiocyanic acid Chemical class SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 2
- 229940035024 thioglycerol Drugs 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- NSMXQKNUPPXBRG-SECBINFHSA-N (R)-lisofylline Chemical compound O=C1N(CCCC[C@H](O)C)C(=O)N(C)C2=C1N(C)C=N2 NSMXQKNUPPXBRG-SECBINFHSA-N 0.000 description 1
- GQRWKGBOBWHKHP-UHFFFAOYSA-N 2,3,6-trimethylquinoxaline Chemical compound N1=C(C)C(C)=NC2=CC(C)=CC=C21 GQRWKGBOBWHKHP-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- VDBJCDWTNCKRTF-UHFFFAOYSA-N 6'-hydroxyspiro[2-benzofuran-3,9'-9ah-xanthene]-1,3'-dione Chemical compound O1C(=O)C2=CC=CC=C2C21C1C=CC(=O)C=C1OC1=CC(O)=CC=C21 VDBJCDWTNCKRTF-UHFFFAOYSA-N 0.000 description 1
- SDEJCUPNRCXJQN-UHFFFAOYSA-N 6-methoxy-2,3-dimethylquinoxalin-5-amine Chemical compound N1=C(C)C(C)=NC2=C(N)C(OC)=CC=C21 SDEJCUPNRCXJQN-UHFFFAOYSA-N 0.000 description 1
- ONMOULMPIIOVTQ-UHFFFAOYSA-N 98-47-5 Chemical compound OS(=O)(=O)C1=CC=CC([N+]([O-])=O)=C1 ONMOULMPIIOVTQ-UHFFFAOYSA-N 0.000 description 1
- 241001482107 Alosa sapidissima Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000695274 Processa Species 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000004695 complexes Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229960001484 edetic acid Drugs 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000008131 herbal destillate Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 description 1
- 239000004297 potassium metabisulphite Substances 0.000 description 1
- 235000010263 potassium metabisulphite Nutrition 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 231100000489 sensitizer Toxicity 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- ORFSSYGWXNGVFB-UHFFFAOYSA-N sodium 4-amino-6-[[4-[4-[(8-amino-1-hydroxy-5,7-disulfonaphthalen-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-5-hydroxynaphthalene-1,3-disulfonic acid Chemical compound COC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=C(C=C3)C(=CC(=C4N)S(=O)(=O)O)S(=O)(=O)O)O)OC)N=NC5=C(C6=C(C=C5)C(=CC(=C6N)S(=O)(=O)O)S(=O)(=O)O)O.[Na+] ORFSSYGWXNGVFB-UHFFFAOYSA-N 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000019830 sodium polyphosphate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 1
- PGWMQVQLSMAHHO-UHFFFAOYSA-N sulfanylidenesilver Chemical compound [Ag]=S PGWMQVQLSMAHHO-UHFFFAOYSA-N 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000001043 yellow dye Substances 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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1440174A CH596580A5 (en:Method) | 1974-10-28 | 1974-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1071456A true CA1071456A (en) | 1980-02-12 |
Family
ID=4400528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA238,170A Expired CA1071456A (en) | 1974-10-28 | 1975-10-22 | Process for the production of masked positive colour images by the silver dye bleach process |
Country Status (9)
Country | Link |
---|---|
US (1) | US4046566A (en:Method) |
JP (1) | JPS5166828A (en:Method) |
BE (1) | BE834882A (en:Method) |
CA (1) | CA1071456A (en:Method) |
CH (1) | CH596580A5 (en:Method) |
DE (1) | DE2547720C2 (en:Method) |
FR (1) | FR2289937A1 (en:Method) |
GB (1) | GB1502669A (en:Method) |
NL (1) | NL182842C (en:Method) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6178715B1 (en) | 1996-12-24 | 2001-01-30 | Designscape Enterprises Ltd. | Mortarless retaining wall structure with improved lateral and longitudinal reinforcement for a vertical, set forward and/or set back retaining wall in whole or in part constructed by utilizing standardized blocks |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH633641A5 (de) * | 1977-07-21 | 1982-12-15 | Ciba Geigy Ag | Verfahren zur herstellung maskierter positiver farbbilder nach dem silberfarbbleichverfahren. |
US4304846A (en) * | 1979-02-09 | 1981-12-08 | Ciba-Geigy Ag | Method for processing silver dye-bleach materials |
EP0023888B1 (de) * | 1979-08-01 | 1984-01-25 | Ciba-Geigy Ag | Verfahren zur Herstellung maskierter positiver Farbbilder nach dem Silberfarbbleichverfahren sowie das photographische Silberfarbbleichmaterial hierfür |
US4368256A (en) * | 1980-07-22 | 1983-01-11 | Ciba-Geigy Ag | Process for production of masked positive color images by the silver dye bleach process and the silver dye bleach material used in this process |
EP0286593A3 (en) * | 1987-04-06 | 1989-09-06 | Ciba-Geigy Ag | Process for producing colour-positive masked images according to the silver dye-bleaching process |
US7561316B2 (en) * | 2005-01-15 | 2009-07-14 | Hewlett-Packard Development Company, L.P. | Adjusting ink-usage parameters to reduce ink usage |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE437332A (en:Method) * | 1938-12-12 | |||
BE441852A (en:Method) * | 1939-11-02 | |||
US2393756A (en) * | 1942-03-06 | 1946-01-29 | Eastman Kodak Co | Photographic color correction process |
FR959734A (en:Method) * | 1943-04-06 | 1950-04-04 | ||
BE491747A (en:Method) * | 1948-10-22 | |||
BE619300A (en:Method) * | 1959-04-06 | |||
US3148062A (en) * | 1959-04-06 | 1964-09-08 | Eastman Kodak Co | Photographic elements and processes using splittable couplers |
US3647436A (en) * | 1970-08-31 | 1972-03-07 | Eastman Kodak Co | Developers for diffusion transfer film units |
US3764331A (en) * | 1970-10-23 | 1973-10-09 | Mitsubishi Paper Mills Ltd | Color photographic material |
-
1974
- 1974-10-28 CH CH1440174A patent/CH596580A5/xx not_active IP Right Cessation
-
1975
- 1975-10-22 CA CA238,170A patent/CA1071456A/en not_active Expired
- 1975-10-23 US US05/625,235 patent/US4046566A/en not_active Expired - Lifetime
- 1975-10-24 DE DE2547720A patent/DE2547720C2/de not_active Expired
- 1975-10-24 FR FR7532669A patent/FR2289937A1/fr active Granted
- 1975-10-27 NL NLAANVRAGE7512550,A patent/NL182842C/xx not_active IP Right Cessation
- 1975-10-27 BE BE161259A patent/BE834882A/xx not_active IP Right Cessation
- 1975-10-27 GB GB44101/75A patent/GB1502669A/en not_active Expired
- 1975-10-28 JP JP50129750A patent/JPS5166828A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6178715B1 (en) | 1996-12-24 | 2001-01-30 | Designscape Enterprises Ltd. | Mortarless retaining wall structure with improved lateral and longitudinal reinforcement for a vertical, set forward and/or set back retaining wall in whole or in part constructed by utilizing standardized blocks |
Also Published As
Publication number | Publication date |
---|---|
JPS5166828A (en) | 1976-06-09 |
US4046566A (en) | 1977-09-06 |
FR2289937B1 (en:Method) | 1978-04-07 |
FR2289937A1 (fr) | 1976-05-28 |
NL182842B (nl) | 1987-12-16 |
JPS5420336B2 (en:Method) | 1979-07-21 |
DE2547720C2 (de) | 1982-04-01 |
NL182842C (nl) | 1988-05-16 |
DE2547720A1 (de) | 1976-04-29 |
NL7512550A (nl) | 1976-05-03 |
BE834882A (fr) | 1976-04-27 |
CH596580A5 (en:Method) | 1978-03-15 |
GB1502669A (en) | 1978-03-01 |
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