US3169863A - Pentaerythritol phosphoric acid ester sensitizers for photographic emulsions - Google Patents

Pentaerythritol phosphoric acid ester sensitizers for photographic emulsions Download PDF

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Publication number
US3169863A
US3169863A US286924A US28692463A US3169863A US 3169863 A US3169863 A US 3169863A US 286924 A US286924 A US 286924A US 28692463 A US28692463 A US 28692463A US 3169863 A US3169863 A US 3169863A
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United States
Prior art keywords
phosphoric acid
silver halide
compound
photographic
silver
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Expired - Lifetime
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US286924A
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English (en)
Inventor
Grabhofer Herbert
Muller Herbert
Posse Rolf-Fred
Ulrich Hans
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Agfa Gevaert NV
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Agfa AG
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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6571Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
    • C07F9/6574Esters of oxyacids of phosphorus
    • C07F9/65746Esters of oxyacids of phosphorus the molecule containing more than one cyclic phosphorus atom
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/043Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29Development processes or agents therefor
    • G03C5/305Additives other than developers
    • G03C5/3056Macromolecular additives
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/15Lithographic emulsion

Definitions

  • n has the meaning given above, and the degree of condensation X of the product of esterification may be 1 or more, for instance 1-100, preferably 1-10.
  • the substituent R may represent H or 3,lh9,853 i atented Feb. 16, l65
  • any silver halide emulsions of the developing-out type which provide a high gamma when developed with developers containing formaldehyde may be used.
  • the silver salts of such emulsions generally consist of silver chloride in a quantity of at least 50 mole percent. However, it is preferred to use emulsions in which the silver salts consist at least of 65 mole percent of silver chloride and accordingly 35 mole percent or less of silver bromide.
  • the emulsions may further contain small amounts of silver iodide, such as 1 to 2 mole percent.
  • the quantity of the above phosphoric acid esters to be added to the emulsion depends on the ratio of chloride to bromide in the emulsion, 10 to mg. per mol of silver halide may advantageously be used.
  • the emulsions can in addition be chemically sensitized with salts of noble metals, such as gold salts, with sulfur compounds or with reducing agents.
  • the emulsions can be optically sensitized with cyanine and merocyanine dyes.
  • the developers which may be employed in our invention contain as essential components a phenol type de veloper, such as hydroquinone, an alkali,such as an alkali metal carbonate, sodium or potassium carbonate, formaldehyde bisulfite and a small amount of a restrainer, such as alkali metal bromide.
  • a restrainer such as alkali metal bromide.
  • the developer can also contain sodium hydroxide, boric acid, a sequesterin g agent.
  • alkali metal carbonate and formaldehyde bisulfite the developer can contain, 'as a source of formaldehyde, paraformaldehyde, an alkali metal sulfite and a buffering agent, such as alkali metal bisulfite.
  • Such developers are well known in the art and are for instance disclosed in US. Patents 2,184,053, 2,313,523, 2,902,367 and in British Patent 643,411.
  • Such developers may contain for instance per one liter 15-25 grams or" hydroquinone, 30-70 grams of formaldehyde bisulfite, 30-90 grams of sodium carbonate monohydrate, 5-20 grams of boric acid and 1-5 grams of alkali metal bromide or 15-25 grams of hydroquinone, 5-10 grams of paraformaldehyde, 1-5 grams of potassium metabisulfite (cryst), 20-40 grams of anhydrous sodium sulphite, 5-15 grams of boric acid and l-5 grams of alkali metal bromide.
  • the phosphoric acid esters of the present invention may be added to the above lithographic developers perferably in quantities of 30-300 mg. per liter.
  • the addition of the phosphoric acid esters of the present invention to the emulsion and/or to the developer causes the gamma value to rise considerably during development, for instance from about 6-8 to above 15.
  • the margin of time during development within which sharpness of raster dots may be obtained is increased from about one minute to 3 to 4 minutes.
  • a formaldehyde containing developer having such an addition is less dependent upon temperature. Whereas a developer without this addition reacts to temperature increases of 1 to 2 C. with a marked reduction in the margin of time for development, good results may be obtained with developer temperatures of 15 to 40 C. if these phosphoric acid esters have been added. Owing to the increased time available for processing, the above graphic use.
  • the phosphoric acid esters according to the invention are prepared by the usual methods used for esterification, and the degree of condensation of the esters may be infiuenced in the desired direction by varying the reaction time, the reaction temperature and the molar proportions of the reaction components.
  • the condensation may for instance be carried through in a liquid alkaline medium, such as in pyridine or triethylamine or other tertiary amines, at temperatures of about 0 to 80 C., preferably to 50 C.
  • the crystals may be isolated by suction filtration after some of the phosphorus oxychloride has been removed by evaporation in vacuo, and the crystals may then be washed with methylene chloride on the suction filter.
  • condensation time is increased the degree of condensation X increases likewise.
  • amount of octaethyleneglycol used for the reaction is increased up to 2 moles there are obtained condensation products in which both end groups are mainly formed by -'-(o cH cH oH- radicals.
  • COMPOUND H 19.4 g. of tetraethylene glycol, 31.2 g. of pyridine and 30 g. of ester chloride (Ia) are reacted as described above and worked up. 27 g. of a viscous light brown oil are obtained. The color may be removed from the 10% aqueous solution by means of active charcoal and bleaching earth.
  • the ioily liquid presumably consists mainly "of a compound of the following theoretical formula:
  • COMPOUND W 41.4 g. of nonaethyleneglycol, 31.2 g. of pyridine and 30 g. of ester chloride (Ia) produce 20 g. of a brown syrupy polycondensate which is diluted with water to a 10% solution and purified with active charcoal and bleaching earth.
  • ester chloride (Ia) produces 20 g. of a brown syrupy polycondensate which is diluted with water to a 10% solution and purified with active charcoal and bleaching earth.
  • the following theoretical formula may be used to represent the highly viscous polycondensate:
  • Example 1 A gelatine-silver halide emulsion the silver halide of which containing 15 mole percent of AgBr and mole percent of AgCl is Washed and then ripened to'maximurn sensitivity and 4-hydroxy-6-rnethyl-l,3,3a,7-tetrazaindole or other stabilizers and a wetting agent are then added, and the emulsion is poured on to a suitable film base (A).
  • A suitable film base
  • Example 2 An emulsion accordinging to Example 1 is divided into two portions. One portion (A) has no additive while the other portion (B) has added to it 80 mg. of Compound II per mole of silver halide. Each portion is then poured on to a film base. The two samples are then illuminated and developed as in Example 1.
  • Example 3 An emulsion according to Example 1 is divided into a portion (A) without additive and a portion (B) with 80 mg. of Compound IH per mole of silver halide as additive, and the portions are poured on to a base and then treated as described under 1.
  • Exampl e 4 Film strips (Agfa-lith-ortho) illuminated behind a stepped wedge are developed in the developer mentioned in Example 1 for varying time ranging from 1 to 4 minutes, at C.
  • the same film samples are developed in the same developer after the addition of 100 rug/liter of Compound I.
  • condensation pro-duct is the condensation product of one mol of a pentaerythritol ester of phosphorochloridic acid and about 1 to 2 mols of a polyethylene glycol.
  • condensation product has the formula wherein R represents a member of the group consisting of hydrogen and radicals having the formula ⁇ -o11,-oH,-o
  • n represents an integer of at least 3 and X represents an integer of at least 1.
  • a light-sensitive photographic material comprising a silver halide emulsion layer in which the silver halide has a silver chloride content of at least SO-mcl percent, which contains a condensation product as defined in claim 1.
  • a light-sensitive photographic material comprising a silver halide emulsion layer in which the silver halide has a silver chloride content of at least 50-mol percent, which contains a condensation product as defined in claim 2.
  • a light-sensitive photographic material comprising a silver halide emulsion layer in which the silver halide has a silver chloride content of at least 50-mol percent, which contains a condensation product as defined in claim 3.
  • Photographic developing composition comprising hydroquinone and formaldehyde, which contains in addition a condensation product as defined in claim 1.
  • Photographic developing composition comprising hydroquinone and formaldehyde, which contains in addition a condensation product as defined in claim 2.
  • Photographic developing composition comprising hydroquinone and formaldehyde, which contains in addition a condensation product as defined in claim 3.

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyethers (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
US286924A 1962-07-21 1963-06-11 Pentaerythritol phosphoric acid ester sensitizers for photographic emulsions Expired - Lifetime US3169863A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEA40784A DE1246403B (de) 1962-07-21 1962-07-21 Verfahren zur Herstellung photographischer Bilder
DEA43236A DE1178297B (de) 1962-07-21 1963-05-31 Verfahren zur Steigerung der Allgemeinempfind-lichkeit von photographischen Halogensilber-emulsionen und photographische Materialien zur Durchfuehrung des Verfahrens

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US3169863A true US3169863A (en) 1965-02-16

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US286924A Expired - Lifetime US3169863A (en) 1962-07-21 1963-06-11 Pentaerythritol phosphoric acid ester sensitizers for photographic emulsions
US368714A Expired - Lifetime US3385708A (en) 1962-07-21 1964-05-19 Sensitization of photographic silver halide emulsions

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US368714A Expired - Lifetime US3385708A (en) 1962-07-21 1964-05-19 Sensitization of photographic silver halide emulsions

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US (2) US3169863A (es)
BE (2) BE648588A (es)
CH (2) CH433977A (es)
DE (2) DE1246403B (es)
FR (2) FR1364351A (es)
GB (2) GB1045183A (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385708A (en) * 1962-07-21 1968-05-28 Agfa Ag Sensitization of photographic silver halide emulsions
US3443951A (en) * 1964-07-02 1969-05-13 Agfa Gevaert Nv Photographic light-sensitive materials containing phosphoric acid ester of aliphatic polyols
US3532501A (en) * 1967-02-10 1970-10-06 Gaf Corp Water-soluble acid esters of polyoxyalkylenated pentaerythritol in silver halide emulsions
CN100400542C (zh) * 2006-03-30 2008-07-09 上海大学 一种磷酸脂的合成方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3264151D1 (en) * 1981-01-20 1985-07-25 Ciba Geigy Ag Photographic recording material and process for its preparation
US4436811A (en) * 1981-07-10 1984-03-13 Ciba-Geigy Ag Photographic material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531832A (en) * 1947-06-12 1950-11-28 Du Pont Silver halide developers containing polyethylene glycols
US2956881A (en) * 1957-03-12 1960-10-18 Eastman Kodak Co Hemioxonol dyes containing a carbocyclic nucleus and photographic emulsions containing them
US2961317A (en) * 1958-06-19 1960-11-22 Eastman Kodak Co Holopolar dyes derived from 3-indazolinone
US2974158A (en) * 1953-04-02 1961-03-07 Union Carbide Corp Preparation of bi-heterocyclic phosphorus containing compounds
US3005007A (en) * 1959-01-19 1961-10-17 Pure Oil Co Preparation of organophosphorus compounds from glycerol and phosphorus oxyhalides
US3090799A (en) * 1959-11-17 1963-05-21 Agfa Ag Pentaerythritol esters of phosphoric acids and compositions containing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122834B (de) * 1960-07-01 1962-01-25 Perutz Photowerke G M B H Verfahren zur partiellen Desensibilisierung und Versteilerung der Gradation von Halogensilberemulsionen
BE635167A (es) * 1962-07-21

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531832A (en) * 1947-06-12 1950-11-28 Du Pont Silver halide developers containing polyethylene glycols
US2974158A (en) * 1953-04-02 1961-03-07 Union Carbide Corp Preparation of bi-heterocyclic phosphorus containing compounds
US2956881A (en) * 1957-03-12 1960-10-18 Eastman Kodak Co Hemioxonol dyes containing a carbocyclic nucleus and photographic emulsions containing them
US2961317A (en) * 1958-06-19 1960-11-22 Eastman Kodak Co Holopolar dyes derived from 3-indazolinone
US3005007A (en) * 1959-01-19 1961-10-17 Pure Oil Co Preparation of organophosphorus compounds from glycerol and phosphorus oxyhalides
US3090799A (en) * 1959-11-17 1963-05-21 Agfa Ag Pentaerythritol esters of phosphoric acids and compositions containing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385708A (en) * 1962-07-21 1968-05-28 Agfa Ag Sensitization of photographic silver halide emulsions
US3443951A (en) * 1964-07-02 1969-05-13 Agfa Gevaert Nv Photographic light-sensitive materials containing phosphoric acid ester of aliphatic polyols
US3532501A (en) * 1967-02-10 1970-10-06 Gaf Corp Water-soluble acid esters of polyoxyalkylenated pentaerythritol in silver halide emulsions
CN100400542C (zh) * 2006-03-30 2008-07-09 上海大学 一种磷酸脂的合成方法

Also Published As

Publication number Publication date
CH433977A (de) 1967-04-15
US3385708A (en) 1968-05-28
DE1246403B (de) 1967-08-03
BE648588A (es) 1964-11-30
GB1045183A (en) 1966-10-12
DE1178297B (de) 1964-09-17
BE635167A (es)
GB1045184A (en) 1966-10-12
FR1364351A (fr) 1964-06-19
FR1396860A (fr) 1965-04-23
CH450156A (de) 1968-01-15

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