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FR829081A - Perfectionnements apportés à la fabrication de matières colorantes - Google Patents

Perfectionnements apportés à la fabrication de matières colorantes

Info

Publication number
FR829081A
FR829081A FR829081DA FR829081A FR 829081 A FR829081 A FR 829081A FR 829081D A FR829081D A FR 829081DA FR 829081 A FR829081 A FR 829081A
Authority
FR
France
Prior art keywords
manufacture
coloring materials
coloring
materials
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
Other languages
English (en)
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford 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 Ilford Ltd filed Critical Ilford Ltd
Application granted granted Critical
Publication of FR829081A publication Critical patent/FR829081A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10—The polymethine chain containing an even number of >CH- groups
    • C09B23/105—The polymethine chain containing an even number of >CH- groups two >CH- groups
    • 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
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes
    • G03C1/22—Methine and polymethine dyes with an even number of CH groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
FR829081D 1936-11-14 1937-11-15 Perfectionnements apportés à la fabrication de matières colorantes Expired FR829081A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31191/36A GB485110A (en) 1936-11-14 1936-11-14 Improvements in or relating to dyestuffs for sensitizing photographic silver halide emulsions

Publications (1)

Publication Number Publication Date
FR829081A true FR829081A (fr) 1938-06-09

Family

ID=32178832

Family Applications (1)

Application Number Title Priority Date Filing Date
FR829081D Expired FR829081A (fr) 1936-11-14 1937-11-15 Perfectionnements apportés à la fabrication de matières colorantes

Country Status (3)

Country Link
US (1) US2430295A (fr)
FR (1) FR829081A (fr)
GB (2) GB485110A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653152A (en) * 1950-08-04 1953-09-22 Haloid Co Cyanine dye and process of making same
US2778822A (en) * 1953-05-26 1957-01-22 Du Pont Photographic sensitizing dyes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078233A (en) * 1934-09-14 1937-04-27 Eastman Kodak Co Photographic emulsion
FR808598A (fr) * 1935-07-05 1937-02-10 Kodak Pathe Procédé de production de colorants, en particulier de colorants sensibilisateurs photographiques, et de composés pour la préparation de ces colorants, et colorants en résultant

Also Published As

Publication number Publication date
GB534958A (en) 1941-03-24
GB485110A (en) 1938-05-16
US2430295A (en) 1947-11-04

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