US2214483A - Photographic color picture - Google Patents

Photographic color picture Download PDF

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Publication number
US2214483A
US2214483A US265758A US26575839A US2214483A US 2214483 A US2214483 A US 2214483A US 265758 A US265758 A US 265758A US 26575839 A US26575839 A US 26575839A US 2214483 A US2214483 A US 2214483A
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US
United States
Prior art keywords
acid
emulsion
layer
color
development
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 - Lifetime
Application number
US265758A
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English (en)
Inventor
Schneider Wilhelm
Lohaus Hermann
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.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
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
Application filed by General Aniline and Film Corp filed Critical General Aniline and Film Corp
Application granted granted Critical
Publication of US2214483A publication Critical patent/US2214483A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/36—Couplers containing compounds with active methylene groups

Definitions

  • photographicv color pictures can-be produced with the aid of color developmentby introducinginto the developer or into the photographic layer a color former which condenses with certain developer substances-to produce a color on thesilver image.
  • dyestuff formers for color development-there have been proposed among others aliphatic and aromatic acid methylene compounds, for example ethylacetoacetate and its derivatives, ethylbenzoylacetate, pyrazolones or the like.
  • This one object'of ourinvention to provide a processof the kind in'question in which there are used for color development pyroracemic acids and derivatives of pyroracemic acids in which the .methyl group contains as a. substituent a radicle of aliphatic, isocyclicor heterocyclic nature, having double linking adjacent to said methyl group.
  • Vinylene groups may be substituted,
  • R1-'CI-I2-CO R2 infl which R1 is a radicle. of acyclic, .isocyclic or heterocyclic nature which has one or more double linkings adjacent to the CI-Iz-group and may contain-substituents, for instance methyl, carboxyl or the like, and R2 is carboxyl, a substituted carboxyl, ON or the like.
  • oxalocrotonic acid diethyl ester oxalosorbic 891d diethyl ester
  • quinolyl-pyroracemic acid The color formers may be. added either to the photographic developer or to the emulsion.. With color develop-. ers, for example pararivative thereof yellow, orange or red dyestufi images are obtained. incorporated in the photographic layer it is, to
  • the foregoing y means of the usual chemical may be made fast polymerization as described inthe
  • the silver halide emulsion containing color formers fast to diffusion may be' used in known manner single layer or sion layers may for making photographic multilayer material.
  • the emul also be made by distributing dif-' ferently sensitized emulsions having different color formers in the support.
  • the aid of silver inaccordance be removed or black and wh'te pictures with halide emulsion layers produced with the invention the silver may be left' in the layer with the dyestuff image.
  • Example 2. -To 1 kilo of a silver halide emulsion there are formula added 5 grams of the sodium salt ester of the exposed layer yields on development with paradimethylaminoaniline a yellow dyestufi image.
  • Example 3. -To 1 kilo of a silver halide emulsion there are added 5 grams the oxalosorbic acid of the sodium salt of diethyl ester of the formula cH-wm-omcoocnin and the emulsion is cast to form a layer.
  • Example 4 To 1 kilo of a silver halide emulsion 5 grams of oxalomethylcrotonic acid ethyl 5 ester are added and the emulsion is cast to form a layer. The exposed layer yields on development with .para-diethylaminoaniline' a reddish yellow dyestufi image.
  • Example 5 To 1 kilo of a silver halide emulan orange-red dyestufi of ortho-nitrophenyl-pyroracemic acid. and the. emulsion is cast to form a layer;
  • Example 1.0.4-aminophenyl-pyroracemic acid is.caused; toreact in pyridine with stearic acid chloride fand the 4 stearoylarninophenyl-racemic acid thus obtained is precipitated. by meansv of' dilute acid. 5 grams of. this. product are added to 1. kilo. of. a silver halide emulsion .and the emulsion-is cast. to form aflayer. Tliefexposed' layer yields on development with para-diethylaminoaniline a yellow dyestuif image.
  • Example 11-.+4.eaminophenyl-racemic acid is caused to react in pyridine withll l' diphenyl- 5Q; dicarboxylic. acid chloride and the product is. pre-' cipitated;.. 51 grams. of the product obtained are added to lkilo of'a silver halide emulsionand the emulsion is cast to form a layer. The exposed emulsion yields on development with para-diethylaminoaniline a. yellow dyestufi image.
  • Example 12.-To 1. kilo of aisilver halide emule sionthere. are added. 5 grams of quinoxalyl-Z- pyroracemic acid ethyl ester corresponding with the formula I CCH2.C 0.0 O 0 CZHE m ing with the formula sion there are added 5 grams of the sodium salt:
  • the exposedlayer yields on development. with para-diethyl--
  • the exposed and the emulsion is cast to form a layer.
  • the exposed layer yields on development with para-diethylaminoaniline an orange dyestufi image.
  • Example 14 To 1 kilo of a silver halide emulsion there are added 5 grams of benzoxazole-2- pyroracemic acid corresponding with the formula CCH2.C 0.0 OOH N andthe emulsion is cast to form a layer. The exposed-layer yields.) on development with para-diethylaminoanilinaan. orange dyestufi image.
  • R1 is a radicle selected from the classconsisting ofran'yaliphatic radiclej. an; i'socyclio radicle and aheterocyclic. radicle, saidradicla having an unsaturated double bond adjacent'itos said CI-Iz-group
  • R2 isaradicle selected from the class consisting of carboxyl; substituted carboxyl, and UN; .to .reaouwith the oxidation-productof anc aromatic developer.
  • the improvement whichcomprises exposing a photographic silver halide emulsion containing asthe dyestuifi-former a derivative of the pyjacent to the carbon atom of said methyl group,
  • said derivative containing a radicle imparting thereto fastness to diffusion with respect to the binding agent of said emulsion, and developing said emulsion with an aromatic amino developer.
  • Silver halide emulsion for color photography comprising a derivative of the p-yroracemic acid, at least the methyl group of said acid being substituted by an organic radicle having an unsaturated double bond in a position adjacent to the carbon atom of said methyl group, said derivative containing a radicle imparting thereto fastness to diffusion with respect to the binding agent of said emulsion.
  • a dyestuif forming developer comprising an aqueous solution containing an aromatic amino developing agent and a derivative of the p yroracemic acid, at least the methyl group: of said acid being substituted by an organic radicle having an unsaturated double bond in a position 1 adjacent to the carbon atom of said methyl group.
  • a silver halide emulsion for color photography containing as a color-forming development component a derivative of pyroracemic acid of the following general formula wherein R1 is an organic radicle, having an unsaturated double bond in a position adjacent to the WILI'IELM SCHNEIDER.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US265758A 1938-04-09 1939-04-03 Photographic color picture Expired - Lifetime US2214483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0061048 1938-04-09

Publications (1)

Publication Number Publication Date
US2214483A true US2214483A (en) 1940-09-10

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ID=7195385

Family Applications (1)

Application Number Title Priority Date Filing Date
US265758A Expired - Lifetime US2214483A (en) 1938-04-09 1939-04-03 Photographic color picture

Country Status (3)

Country Link
US (1) US2214483A (fr)
BE (1) BE433702A (fr)
FR (1) FR852803A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435173A (en) * 1944-06-07 1948-01-27 Gen Aniline & Film Corp Acetyl n-heterocyclic couplers for color photography
US5066576A (en) * 1989-10-03 1991-11-19 Fuji Photo Film Co., Ltd. Silver halide color photographic material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8545539B2 (en) 2008-05-12 2013-10-01 Edwin E. Spencer Proximal humeral fracture reduction and fixation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435173A (en) * 1944-06-07 1948-01-27 Gen Aniline & Film Corp Acetyl n-heterocyclic couplers for color photography
US5066576A (en) * 1989-10-03 1991-11-19 Fuji Photo Film Co., Ltd. Silver halide color photographic material

Also Published As

Publication number Publication date
BE433702A (fr)
FR852803A (fr) 1940-03-04

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