GB1419778A - Photographic silver halide processes and compositions - Google Patents

Photographic silver halide processes and compositions

Info

Publication number
GB1419778A
GB1419778A GB3110475A GB3110475A GB1419778A GB 1419778 A GB1419778 A GB 1419778A GB 3110475 A GB3110475 A GB 3110475A GB 3110475 A GB3110475 A GB 3110475A GB 1419778 A GB1419778 A GB 1419778A
Authority
GB
United Kingdom
Prior art keywords
silver halide
uracil
photographic silver
compositions
aminoethyl
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
GB3110475A
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.)
Polaroid Corp
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Publication of GB1419778A publication Critical patent/GB1419778A/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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • 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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1419778 Photographic silver halide stabilizing composition POLAROID CORP 22 Dec 1972 [23 Dec 1971] 31104/75 Divided out of 1419776 Heading G2C A photographic silver halide stabilizing composition comprises water, a uracil and bis-(#- aminoethyl) sulphide. The uracil may be 5-or 6-methyl uracil. The composition may contain a silver halide developing agent or a 6-(optionally substituted alkyl)-aminopurine as defined in Specification 1419776). In the example the composition contains 6-benzylaminopurine and is used in a dye-developer diffusion transfer process. The combination of a uracil and bis-(#-aminoethyl) sulphide provides a much more difficultly reduceable complex than do conventional silver halide solvents and does not interfere with silver halide development.
GB3110475A 1971-12-23 1972-12-22 Photographic silver halide processes and compositions Expired GB1419778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21171871A 1971-12-23 1971-12-23

Publications (1)

Publication Number Publication Date
GB1419778A true GB1419778A (en) 1975-12-31

Family

ID=22788068

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5934372A Expired GB1419776A (en) 1971-12-23 1972-12-22 Photographic silver halide products and processes
GB3110475A Expired GB1419778A (en) 1971-12-23 1972-12-22 Photographic silver halide processes and compositions

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5934372A Expired GB1419776A (en) 1971-12-23 1972-12-22 Photographic silver halide products and processes

Country Status (10)

Country Link
US (1) US3785814A (en)
JP (1) JPS5627866B2 (en)
AU (1) AU456237B2 (en)
BE (2) BE793234A (en)
CA (1) CA1005273A (en)
DE (1) DE2263014C2 (en)
FR (1) FR2164847B1 (en)
GB (2) GB1419776A (en)
IT (1) IT974281B (en)
NL (1) NL177777C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856521A (en) * 1972-04-24 1974-12-24 Polaroid Corp Diffusion transfer color film and process
US3899331A (en) * 1973-11-14 1975-08-12 Polaroid Corp Multicolor dye developer diffusion transfer processes with pyrazolo-{8 3,4d{9 {0 pyrimidines
US3909264A (en) * 1973-12-26 1975-09-30 Polaroid Corp Dye developer processes and products using naphth{8 1,2-d{9 imidazole
US4282306A (en) * 1979-04-24 1981-08-04 Polaroid Corporation Dye developer processes
DE3068777D1 (en) * 1979-04-24 1984-09-06 Polaroid Corp Diffusion transfer film unit and color process
US5411929A (en) * 1994-06-30 1995-05-02 Polaroid Corporation Thermally-processable image recording materials including substituted purine compounds

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL268155A (en) * 1960-08-22
US3415644A (en) * 1967-03-10 1968-12-10 Polaroid Corp Novel photographic products and processes
BE793081A (en) * 1971-12-20 1973-06-20 Polaroid Corp DIFFUSION-TRANSFER TYPE SELF-DEVELOPING PHOTOGRAPHIC FILMS AND THEIR MANUFACTURING PROCESS

Also Published As

Publication number Publication date
AU456237B2 (en) 1974-11-22
NL177777B (en) 1985-06-17
NL7217527A (en) 1973-06-26
US3785814A (en) 1974-01-15
GB1419776A (en) 1975-12-31
AU3274171A (en) 1973-03-01
JPS4874224A (en) 1973-10-06
CA1005273A (en) 1977-02-15
FR2164847B1 (en) 1982-06-18
IT974281B (en) 1974-06-20
NL177777C (en) 1985-11-18
BE793233A (en) 1973-06-22
JPS5627866B2 (en) 1981-06-27
BE793234A (en) 1973-06-22
DE2263014A1 (en) 1973-06-28
DE2263014C2 (en) 1983-06-30
FR2164847A1 (en) 1973-08-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee