EP0014688B1 - Verfahren zur Verarbeitung von Silberfarbbleichmaterialien, wässrige Zubereitung hierfür, Konzentrat und Verfahren zur Herstellung der Zubereitung - Google Patents

Verfahren zur Verarbeitung von Silberfarbbleichmaterialien, wässrige Zubereitung hierfür, Konzentrat und Verfahren zur Herstellung der Zubereitung Download PDF

Info

Publication number
EP0014688B1
EP0014688B1 EP80810042A EP80810042A EP0014688B1 EP 0014688 B1 EP0014688 B1 EP 0014688B1 EP 80810042 A EP80810042 A EP 80810042A EP 80810042 A EP80810042 A EP 80810042A EP 0014688 B1 EP0014688 B1 EP 0014688B1
Authority
EP
European Patent Office
Prior art keywords
dimethylquinoxaline
quinoxaline
methoxy
bleaching
silver
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
Application number
EP80810042A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0014688A3 (en
EP0014688A2 (de
Inventor
Max Marthaler
Gérald Dr. Jan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cessione ilford AG
Original Assignee
Ciba Geigy AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4207040&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0014688(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Priority to AT80810042T priority Critical patent/ATE2864T1/de
Publication of EP0014688A2 publication Critical patent/EP0014688A2/de
Publication of EP0014688A3 publication Critical patent/EP0014688A3/de
Application granted granted Critical
Publication of EP0014688B1 publication Critical patent/EP0014688B1/de
Expired legal-status Critical Current

Links

Images

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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/40—Chemically transforming developed images
    • G03C5/44—Bleaching; Bleach-fixing
    • 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

Definitions

  • the latent silver image created during exposure is developed.
  • the image dye assigned to the silver is bleached out in accordance with the image-wise distribution of the silver.
  • the third step is necessary to reoxidize the excess image silver that is still present after the color bleaching.
  • the silver, which is now completely in the form of halides is removed by dissolving it out with a complexing agent, in particular a salt of thiosulfuric acid, in order to render the finished image insensitive to further exposure and to clear the pure color image of cloudiness.
  • the second process step, color bleaching is carried out in the customary known processes in a strongly acidic medium, a catalyst being added to accelerate the color bleaching.
  • the bleaching baths also contain a silver complexing agent or ligand. Both components, catalyst and ligand, are necessary in order to transfer the reducing effect of the metallic, non-diffusible image silver to the likewise non-diffusible dye.
  • the reduced form of the catalyst resulting from reduction on the image silver serves as an intermediate support which, after covering a certain diffusion distance, irreversibly reduces the dye and thus bleaches, and is reoxidized itself to the original form.
  • the property of the reduced stage of the bleaching catalyst to freely diffuse between the image silver and the dye to be bleached makes it possible to spatially separate silver and image dye to a certain extent, i. H. That is, to arrange the bleachable dye and the silver halide emulsion assigned to it not or only partially in the same layer but in adjacent layers.
  • Such silver color bleaching materials are e.g. B. in German Offenlegungsschriften 2,036,918, 132,835, and 2,132,836.
  • Suitable bleaching catalysts which are reversibly reduced in the acidic solution under the influence of image silver and which in turn are able to reductively bleach the image dyes, are especially 1,4-diazines, such as pyrazine, quinoxaline, phenazine and their derivatives, and also 1,2-diazines, such as Cinnoline and its derivatives such as benzo or pyrido [c] cinnolines.
  • Suitable bleaching catalysts are listed in a large number of patents and applications, e.g. B. in DE-C-735 672, DE-B-1 547 720 and DE-A-2 144 297, 144 298, 2 722 776 or 2 722 777.
  • the silver color bleach positive images produced by the known method have been brought to perfection in recent years and are characterized in particular by brilliant colors, good color rendering and excellent light fastness.
  • An important characteristic of a good color copy material is an optimal tone reproduction and balanced color gradations in all density ranges. It is always difficult to control the color balance, since different bleaching behavior of the azo dyes cannot always be compensated for with the conventional methods of material build-up, such as sensitivity and contrast of the silver emulsions used. As a result, the choice of image dyes and in particular also that of the processing components in the bleaching bath is restricted in many cases.
  • DE-B-1 270 949 discloses the use of a mixture of quinoline and quinaldine as bleaching catalysts in a color bleaching bath for the silver color bleaching process. This color bleaching bath enables rapid color bleaching depending on the silver developed.
  • the object of the present invention is to eliminate the disturbed color balance as much as possible in order to achieve improved color rendering.
  • the redox potentials are measured in 1.0 molar aqueous sulfuric acid solution against the standard hydrogen electrode by means of a calomel electrode.
  • the quantitative ratio of the bleaching catalysts to one another can vary between 1: 200 and 200: 1.
  • the ranges of the redox potentials are preferably between +60 mV and -30 mV (bleaching catalyst I) and -30 mV and -100 mV (bleaching catalyst II).
  • Suitable components (e) which have redox potentials within the stated limits are optionally substituted benzo or pyrido [c] cinnolines as 1,2-diazines, and pyrazines and in particular quinoxalines which are optionally substituted as 1,4-diazines.
  • the latter are preferably substituted, e.g. B. in positions 2, 3, 5, 6, 7 and / or 8, preferably in positions 2, 3, 6 and / or 7.
  • substituents are present in the molecule.
  • the quinoxalines can be substituted with methyl, methoxy, hydroxymethyl, sulfomethyl, sulfoethoxy or sulfopropoxy, also hydroxyl, amino (- NH 2 ), acetylamino or methylsulfonylamino, and optionally also with 5- or 6-membered rings, such as dioxolo, dioxino, imidazo - or pyrazino rings must be condensed.
  • Tables 1 and 2 below list suitable bleaching catalysts from groups I and II together with the associated redox potentials.
  • the present invention also relates to the combined color and silver bleaching baths (preparations) for processing the exposed silver color bleaching material, which contain components (a) to (e) and optionally (f).
  • the amount of bleaching catalysts used in the preferably aqueous treatment baths can vary within wide limits and is approximately 0.05 to 10 g / l of bleaching bath.
  • the temperature of the bleaching bath is generally between 20 and 90 ° C., preferably between 20 and 60 ° C., the processing time required, of course, being shorter at a higher temperature than at a lower temperature.
  • the bleaching baths are stable within the specified temperature range.
  • the aqueous bleaching preparations required for processing are used in the form of dilute aqueous solutions which contain the components mentioned.
  • other methods are also conceivable, e.g. B. application in paste form.
  • the concentrates of the individual or all components or their combinations e.g. B. from components (a) and (c) and from components (b), (d), (e) and (f), 2 to 20 times, preferably 5 to 10 times the amount of the individual components per liter more concentrated Preparation ' included, as previously stated for the ready-to-use bleaching baths. They are usually in the form of liquid or paste-like, possibly also powder-form concentrates.
  • the strong dye and component bleach baths can contain alkyl or arylsulfonic acids and in particular p-toluenesulfonic acid, sulfuric acid or sulfamic acid as strong acids (component (a)). If necessary, a mixture of these acids can also be used.
  • the pH of the bleaching bath is in particular not greater than 2 and preferably not greater than 1.
  • the water-soluble iodides are generally alkali metal iodides, especially sodium and potassium iodide.
  • oxidizing agent (c) Water-soluble aromatic mononitro and dinitro compounds and anthraquinone sulfonic acid derivatives are expediently used as the oxidizing agent (c).
  • the use of such oxidizing agents serves to influence the color balance and the contrast of the images produced by the color bleaching process and is known from German patent specification 735 672, British patent specifications 539 190 and 539 509 and Japanese patent publication 22 673/69.
  • the compounds of component (c) serve to flatten the gradation.
  • Reductones or water-soluble mercapto compounds are advantageously used as antioxidants (anticorrosive agents (d).
  • Suitable reductones are in particular aci-reductones with a 3-carbonylenediol (1,2) grouping, such as reduction, triose reduction or preferably ascorbic acid.
  • Mercapto compounds come e.g. thioglycerin, but especially the compounds of the formula or preferably into consideration, in which q is an integer from 2 to 12, B is a sulfonic acid or carboxylic acid group and m is one of the numbers 3 and 4.
  • Mercapto compounds which can be used as antioxidants are described in DE-A-2 258 076 and DE-A-2 423 814.
  • Suitable further antioxidants are alkali metal, alkaline earth metal or ammonium bisulfite adducts of organic carbonyl compounds, preferably alkali metal or ammonium bisulfite adducts of monoaldehydes with 1 to 4 or dialdehydes with 2 to 5 carbon atoms (DE-A-2 737 142).
  • Examples include the particularly preferred formaldehyde bisulfite adduct, furthermore the corresponding adducts of acetaldehyde, propionaldehyde, butyraldehyde or isobutyraldehyde, of glyoxal, malondialdehyde or glutardialdehyde.
  • the tertiary water-soluble phosphines mentioned below as bleaching accelerators are also simultaneously oxidative protective agents can be used.
  • Further bleaching accelerators are the water-soluble tertiary phosphines known from DE-OS 2 651 969, which preferably contain at least one cyanoethyl group.
  • Baths of conventional composition can be used for silver development, e.g. B. those containing hydroquinone as developer and optionally additionally 1-phenyl-3-pyrazolidinone.
  • the silver developing bath may already contain a group 1 or 11 bleaching catalyst.
  • the silver fixing bath can be composed in a known and customary manner.
  • the method according to the invention can, for. B. in the production of positive color images in copiers or automatic recorders or in the rapid processing of other silver color bleaching materials such.
  • B. for scientific records and industrial purposes, e.g. B. colored screen photography, can also be used for the production of grain-negative and diffusion transfer images.
  • a transparent, metallic-reflecting, or preferably white-opaque material can be used as the carrier, which is not able to absorb any liquid from the baths.
  • the carrier can for example consist of optionally pigmented cellulose triacetate or polyester. If it is made of paper felt, it must be coated on both sides or coated with polyethylene.
  • the light-sensitive layers are located on at least one side of this support, preferably in the known arrangement, i. H. a red-sensitized silver halide emulsion layer containing a blue-green azo dye on the bottom, a green-sensitized silver halide emulsion layer containing a purple azo dye above and a blue-sensitive silver halide emulsion layer containing a yellow azo dye above.
  • the material can also contain sub-layers, intermediate layers, filter layers and protective layers, but the total thickness of the layers should generally not exceed 20 gm.
  • the process according to the present invention has the advantage that the sensitometric curves of all three color layers of a silver color bleaching material can be largely covered by a suitable mixture of the catalysts to be selected from groups I and II, as a result of which all brightness levels between the brightest lights and the darkest shadow areas neutral gray tones can be generated.
  • Another advantage is that the generally too steep color gradations that occur when using group I bleaching catalysts are significantly improved by admixing bleaching catalysts with an at least 15 mV lower redox potential from group I or preferably group II bleaching catalysts can be (balanced) without losing the advantage of rapid bleaching (reactive bleaching catalysts of group I) and thus the short treatment times.
  • the inventive method is also suitable for processing exposed silver color bleaching material, which has a special structure and z.
  • B. is suitable for producing self-masked images (DE-A-2 547 720).
  • color reproduction can be improved even further by the method according to the invention.
  • the silver development bath used to treat the material contains a ligand that is capable of producing water-soluble, diffusible silver complexes.
  • a photographic material for the silver color bleaching process is produced on a pigmented cellulose acetate support, using the blue-green image dye of the formula in the red-sensitized bottom layer, the purple dye of the formula in an overlying green-sensitized layer and the yellow dye of the formula in a blue-sensitive layer lying over the purple layer.
  • the layer structure enables the blue secondary color densities of the cyan and purple dyes to be corrected by additionally bleaching the yellow image dye depending on the bleaching of the other two image dyes.
  • the iodide-containing emulsion layers contain crystals with 2.6 mol% silver iodide and 97.4 mol% silver bromide.
  • the image dyes are used in such a concentration that their reflectance density is 2.0; the total silver content of the 22 ⁇ m thick layers is 2.0 g / m 2 .
  • a colored slide is exposed on this material in an enlarger.
  • the exposed material is processed in a manual development drum at 24 ° C.
  • 100 ml processing solutions with the following compositions are used.
  • the positive top-view copy of the slide obtained after drying is characterized by unadulterated color rendering and flawless overall contrast.
  • the three color gradations are so balanced that neutral gray image areas in the slide are reproduced in all brightness levels without a color cast
  • Example 1 The material used in Example 1 is exposed behind a gray wedge with additive color filters blue, green and red. In order to investigate the mode of action of the color bleaching catalysts, the exposed material is processed three times in accordance with Example 1;
  • the composition of the bleaching bath is varied as follows with regard to the amount of the two bleaching catalysts (compounds of the formulas (102) and (201)):

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Detergent Compositions (AREA)
  • Removal Of Specific Substances (AREA)
  • Catalysts (AREA)
EP80810042A 1979-02-09 1980-02-05 Verfahren zur Verarbeitung von Silberfarbbleichmaterialien, wässrige Zubereitung hierfür, Konzentrat und Verfahren zur Herstellung der Zubereitung Expired EP0014688B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80810042T ATE2864T1 (de) 1979-02-09 1980-02-05 Verfahren zur verarbeitung von silberfarbbleichmaterialien, waessrige zubereitung hierfuer, konzentrat und verfahren zur herstellung der zubereitung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH129379 1979-02-09
CH1293/79 1979-02-09

Publications (3)

Publication Number Publication Date
EP0014688A2 EP0014688A2 (de) 1980-08-20
EP0014688A3 EP0014688A3 (en) 1981-11-25
EP0014688B1 true EP0014688B1 (de) 1983-03-23

Family

ID=4207040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80810042A Expired EP0014688B1 (de) 1979-02-09 1980-02-05 Verfahren zur Verarbeitung von Silberfarbbleichmaterialien, wässrige Zubereitung hierfür, Konzentrat und Verfahren zur Herstellung der Zubereitung

Country Status (6)

Country Link
US (1) US4304846A (enrdf_load_stackoverflow)
EP (1) EP0014688B1 (enrdf_load_stackoverflow)
JP (1) JPS55106455A (enrdf_load_stackoverflow)
AT (1) ATE2864T1 (enrdf_load_stackoverflow)
CA (1) CA1165165A (enrdf_load_stackoverflow)
DE (1) DE3062384D1 (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404273A (en) * 1980-12-15 1983-09-13 Ciba-Geigy Ag Process for the production of photographic color images by the silver dye bleach process
CH657710A5 (de) * 1983-07-20 1986-09-15 Ciba Geigy Ag Verfahren zur verarbeitung photographischer silberfarbbleichmaterialien.
EP0149978A3 (en) * 1984-01-20 1988-08-31 Ciba-Geigy Ag Process for the production of photographic images by the silver dye-bleaching process
AU590628B2 (en) * 1985-10-15 1989-11-09 Fuji Photo Film Co., Ltd. Method of processing silver halide color photographic material
US5262285A (en) * 1992-05-04 1993-11-16 Eastman Kodak Company Methods and compositions for retouching film images
US5569443A (en) * 1994-11-18 1996-10-29 The Dow Chemical Company Method for removing hydrogen sulfide from a gas using polyamino disuccinic acid
US5741555A (en) * 1995-05-22 1998-04-21 The Dow Chemical Company Succinic acid derivative degradable chelants, uses and compositions thereof
US5585226A (en) * 1995-08-30 1996-12-17 Eastman Kodak Company Polyamino monoesuccinates for use in photographic processes
US5652085A (en) * 1995-08-30 1997-07-29 Eastman Kodak Company Succinic acid derivative degradable chelants, uses and composition thereof
US7267259B2 (en) * 1999-02-17 2007-09-11 Ronald Redline Method for enhancing the solderability of a surface
US6905587B2 (en) * 1996-03-22 2005-06-14 Ronald Redline Method for enhancing the solderability of a surface
US6544397B2 (en) 1996-03-22 2003-04-08 Ronald Redline Method for enhancing the solderability of a surface
USRE45842E1 (en) 1999-02-17 2016-01-12 Ronald Redline Method for enhancing the solderability of a surface
US6358954B1 (en) * 1999-11-09 2002-03-19 Yissum Research Development Company Of The Hebrew University Of Jerusalem PDGF receptor kinase inhibitory compounds, their preparation, purification and pharmaceutical compositions including same
EP1172691A1 (de) * 2000-07-12 2002-01-16 ILFORD Imaging Switzerland GmbH Verfahren zur Verarbeitung photographischer Silberfarbbleichmaterialien und dafür geeignete Bleichzubereitungen
JP2019149903A (ja) * 2018-02-28 2019-09-05 シナノケンシ株式会社 電動機

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB539509A (en) * 1940-01-11 1941-09-15 Eastman Kodak Co Improvements in or relating to the production of colour photographs
GB539190A (en) * 1940-02-22 1941-09-01 Eastman Kodak Co Method of colour photography and materials therefor
GB1051970A (enrdf_load_stackoverflow) * 1964-03-20
CH433980A (de) * 1964-07-07 1967-04-15 Ciba Geigy Verwendung von Acylaminoverbindungen als Farbbleichkatalysatoren für das Silberfarbbleichverfahren
DE1270949B (de) * 1966-09-21 1968-06-20 Agfa Gevaert Ag Waessriges Farbbleichbad fuer das Silberfarbbleichverfahren
CH508226A (de) * 1969-03-13 1971-05-31 Ciba Geigy Ag Verwendung von Chinoxalinen als Farbbleichkatalysatoren
CH553428A (de) * 1970-09-04 1974-08-30 Ciba Geigy Ag Verwendung von chinoxalinen als wasserstoffuebertraeger.
CH596580A5 (enrdf_load_stackoverflow) * 1974-10-28 1978-03-15 Ciba Geigy Ag
CH624676A5 (enrdf_load_stackoverflow) * 1976-05-24 1981-08-14 Ciba Geigy Ag
US4202698A (en) * 1976-05-24 1980-05-13 Ciba-Geigy Ag Quinoxalines and their use in photographic processes
CH621545A5 (enrdf_load_stackoverflow) * 1976-05-24 1981-02-13 Ciba Geigy Ag

Also Published As

Publication number Publication date
DE3062384D1 (en) 1983-04-28
EP0014688A3 (en) 1981-11-25
CA1165165A (en) 1984-04-10
EP0014688A2 (de) 1980-08-20
JPS55106455A (en) 1980-08-15
JPS5735453B2 (enrdf_load_stackoverflow) 1982-07-29
US4304846A (en) 1981-12-08
ATE2864T1 (de) 1983-04-15

Similar Documents

Publication Publication Date Title
EP0014688B1 (de) Verfahren zur Verarbeitung von Silberfarbbleichmaterialien, wässrige Zubereitung hierfür, Konzentrat und Verfahren zur Herstellung der Zubereitung
DE1286900B (de) Gruenempfindliche supersensibilisierte Silberhalogenidemulsion
DE1121470B (de) Farbenphotographisches Mehrschichtenmaterial mit diffusionsfest eingelagerten Kupplungskomponenten
DE2101071A1 (de) Lichtempfindliche, fotografische Silberhalogenidemulsion
DE2303204A1 (de) Farbphotographisches silberhalogenidaufzeichnungsmaterial
EP0034793B1 (de) Verfahren zur Verarbeitung von photographischen Silberfarbbleichmaterialien, dafür geeignete Zubereitungen und deren Herstellung aus Konzentraten oder Teilkonzentraten, sowie die Konzentrate und Teilkonzentrate
DE2034064B2 (de) Farbfotografisches Aufzeichenmaterial
EP0059166B1 (de) Disazofarbstoffe und ihre Verwendung in farbphotographischen Aufzeichnungsmaterialien für das Silberfarbbleichverfahren
DE2716136A1 (de) Verfahren zur verarbeitung von silberfarbbleichmaterialien
DE723388C (de) Verfahren zur direkten Erzeugung eines Naturfarbenbildes
EP0040172B1 (de) Azofarbstoffe, Verfahren zu ihrer Herstellung und Verwendung als Bildfarbstoffe in photographischen Silberfarbbleichmaterialien sowie das diese Azofarbstoffe enthaltende photographische Material
DE1202638B (de) Photographisches Entwicklungsverfahren zur Herstellung von Farbbildern nach dem Farbentwicklungsverfahren
DE2547720C2 (de) Farbphotographisches Aufzeichnungsmaterial zur Herstellung maskierter positiver Farbbilder nach dem Silberfarbbleichverfahren und Verfahren zur Herstellung der Farbbilder
EP0044812B1 (de) Verfahren zur Herstellung maskierter positiver Farbbilder nach dem Silberfarbbleichverfahren und das in diesem Verfahren verwendete Silberfarbbleichmaterial
EP0866364B1 (de) Hochempfindliches farbfotografisches Aufzeichnungsmaterial mit erhöhter Empfindlichkeit im blauen Spektralbereich
DE2530469C2 (de) Verfahren zur Verarbeitung von Silberfarbbleichmaterialien
DE2831814A1 (de) Verfahren zur herstellung maskierter positiver farbbilder nach dem silberfarbbleichverfahren
EP0023888B1 (de) Verfahren zur Herstellung maskierter positiver Farbbilder nach dem Silberfarbbleichverfahren sowie das photographische Silberfarbbleichmaterial hierfür
DE1929037A1 (de) Lichtempfindliche,photographische Silberhalogenidemulsion
DE1522418A1 (de) Verfahren zur Herstellung von Mehrfarbenwiedergaben nach dem subtraktiven Verfahren
EP0117227B1 (de) Photographisches Material für das Silberfarbbleichverfahren
DE2611803C3 (de) Supersensibilisierte, rotempfindliche farbphotographische Silberhalogenidemulsion
DE701047C (de) Photographisches Mehrschichtenmaterial fuer Farbenphotographie
EP0047449A2 (de) Verfahren zur Herstellung farbfotografischer Bilder
DE851722C (de) Verfahren zur Herstellung von Farbphotographien

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed
AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT NL SE

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 2864

Country of ref document: AT

Date of ref document: 19830415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3062384

Country of ref document: DE

Date of ref document: 19830428

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: TETENAL PHOTOWERK GMBH & CO

Effective date: 19831202

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19871128

NLR2 Nl: decision of opposition
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: ILFORD AG

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900110

Year of fee payment: 11

Ref country code: AT

Payment date: 19900110

Year of fee payment: 11

NLS Nl: assignments of ep-patents

Owner name: ILFORD AG TE FREIBURG, ZWITSERLAND.

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19900116

Year of fee payment: 11

Ref country code: SE

Payment date: 19900116

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19900117

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19900129

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900131

Year of fee payment: 11

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19900228

Year of fee payment: 11

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;ILFORD AG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910205

Ref country code: AT

Effective date: 19910205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19910228

Ref country code: CH

Effective date: 19910228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19910901

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19911031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19911101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 80810042.4

Effective date: 19911002