GB819645A - Improvements in and relating to methods of forming photographic layers and to photographic materials having such layers - Google Patents

Improvements in and relating to methods of forming photographic layers and to photographic materials having such layers

Info

Publication number
GB819645A
GB819645A GB35234/55A GB3523455A GB819645A GB 819645 A GB819645 A GB 819645A GB 35234/55 A GB35234/55 A GB 35234/55A GB 3523455 A GB3523455 A GB 3523455A GB 819645 A GB819645 A GB 819645A
Authority
GB
United Kingdom
Prior art keywords
copolymers
aqueous
monomers
prepared
layers
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
GB35234/55A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB819645A publication Critical patent/GB819645A/en
Expired legal-status Critical Current

Links

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
    • G03C7/22—Subtractive cinematographic processes; Materials therefor; Preparing or processing such materials
    • G03C7/25—Dye-imbibition processes; Materials therefor; Preparing or processing such materials
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/053—Polymers obtained by reactions involving only carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/66—Compositions containing chromates as photosensitive substances
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/835—Macromolecular substances therefor, e.g. mordants
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/93—Water swellable or hydrophilic

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Aqueous sols having a pH of from 4.5 to 11 and which give a thermoreversible gel on cooling comprise as principal ingredients copolymers composed to the extent of at least 60 per cent by weight of the product obtained or obtainable by the copolymerization of the monomers: CH2=CR-COOH and CH2=CR1-CN wherein R and R1 each represents a hydrogen atom, a halogen atom or a lower alkyl group, in a molecular ratio of the second to the first monomer within the range of 1.5:1 and 3:1. Also present in the copolymers may be units derived from other monomers, e.g. acrylamide, vinyl acetate and styrene. The copolymers may be prepared by copolymerizing the monomers in a liquid medium such as ethyl alcohol or, preferably, an aqueous medium having a pH of about 3 with the aid of a catalyst such as benzoyl peroxide, a mixture of potassium persulphate and sodium metabisulphite or a mixture of hydrogen peroxide and ferrous chloride. In an Example (6) a copolymer of acrylic acid and acrylonitrile is prepared by a procedure in which the acrylonitrile is not added to the reaction until the acrylic acid has been polymerizing for 1 hour. Alternatively, the copolymers may be prepared by the partial hydrolysis of polyacrylonitrile of polyacrylonitrile with aqueous caustic soda followed by precipitation in acid form by means of hydrochloric acid. Aqueous sols are made by dissolving the copolymers in water with the aid of ammonia or caustic soda. The sols may be used in the preparation of photographic layers for which purpose the copolymer may be replaced in part by gelatin or phthalyl gelatin. Specification 649,544, [Group IV (b)], is referred to.
GB35234/55A 1954-12-08 1955-12-08 Improvements in and relating to methods of forming photographic layers and to photographic materials having such layers Expired GB819645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1040370X 1954-12-08

Publications (1)

Publication Number Publication Date
GB819645A true GB819645A (en) 1959-09-09

Family

ID=9588899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35234/55A Expired GB819645A (en) 1954-12-08 1955-12-08 Improvements in and relating to methods of forming photographic layers and to photographic materials having such layers

Country Status (5)

Country Link
US (1) US2968558A (en)
BE (1) BE543426A (en)
DE (1) DE1040370B (en)
FR (1) FR1117490A (en)
GB (1) GB819645A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS148810B1 (en) * 1969-06-13 1973-05-24
US3620743A (en) * 1969-12-15 1971-11-16 Norman T Notley Vehicles for vesicular photographic materials
US3622336A (en) * 1970-01-27 1971-11-23 Norman Thomas Notley Vesicular light-sensitive materials comprising a copolymer of chloroacrylonitrile and methacrylonitrile
US4173606A (en) * 1975-07-14 1979-11-06 Ceskoslovenska Akademie Ved. Method of manufacturing shaped articles from crystalline acrylonitrile polymers and copolymers
US5432245A (en) * 1990-04-02 1995-07-11 Eastman Kodak Company Method of coating thermoreversible heat-thickening polyacrylamides
US5221598A (en) * 1992-11-23 1993-06-22 Eastman Kodak Company Photographic support material comprising an antistatic layer and a heat-thickening barrier layer

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123599A (en) * 1930-01-28 1938-07-12 Ig Farbenindustrie Ag Production of polymerization products
US1981102A (en) * 1932-08-10 1934-11-20 Agfa Ansco Corp Photographic material and process of making the same
US2006002A (en) * 1932-11-29 1935-06-25 Agfa Ansco Corp Manufacture of photographic silver halide emulsion layers
US2461023A (en) * 1944-10-25 1949-02-08 Gen Aniline & Film Corp Photographic silver halide emulsions
US2522771A (en) * 1944-11-03 1950-09-19 Gen Aniline & Film Corp Photographic silver halide emulsions
US2504049A (en) * 1946-03-04 1950-04-11 Du Pont Preparation of polymethacrylic acid and of polymeric products containing polymethacrylic acid
FR1055759A (en) * 1946-07-22 1954-02-22
US2566149A (en) * 1948-01-07 1951-08-28 Du Pont Textile size containing polymethacrylic acid, a polymethacrylic acid salt, and a wetting agent
GB690553A (en) * 1950-01-05 1953-04-22 British Celanese Improvements in or relating to the production and use of solutions of acrylic polymers
BE502283A (en) * 1950-03-31
US2772166A (en) * 1953-02-11 1956-11-27 Eastman Kodak Co Hydrophilic compositions and their preparation
US2768080A (en) * 1954-02-18 1956-10-23 Eastman Kodak Co Hydrophilic high polymer hydrosols and gelating emulsions

Also Published As

Publication number Publication date
DE1040370B (en) 1958-10-02
FR1117490A (en) 1956-05-23
US2968558A (en) 1961-01-17
BE543426A (en)

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