CH628746A5 - Use of cyanine dyes in photographic direct positive recording material - Google Patents

Use of cyanine dyes in photographic direct positive recording material Download PDF

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Publication number
CH628746A5
CH628746A5 CH446077A CH446077A CH628746A5 CH 628746 A5 CH628746 A5 CH 628746A5 CH 446077 A CH446077 A CH 446077A CH 446077 A CH446077 A CH 446077A CH 628746 A5 CH628746 A5 CH 628746A5
Authority
CH
Switzerland
Prior art keywords
formula
group
cyanine dyes
thio
alkyl
Prior art date
Application number
CH446077A
Other languages
German (de)
English (en)
Inventor
Paolo Dr Beretta
Luigi Magnani
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of CH628746A5 publication Critical patent/CH628746A5/de

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
    • C09B23/14—Styryl dyes
    • C09B23/145—Styryl dyes the ethylene chain carrying an heterocyclic residue, e.g. heterocycle-CH=CH-C6H5
    • 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
    • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • 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
    • 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
    • G03C1/485—Direct positive emulsions
    • G03C1/48515—Direct positive emulsions prefogged
    • G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser
    • G03C1/4853—Direct positive emulsions prefogged characterised by the desensitiser polymethine dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Indole Compounds (AREA)
CH446077A 1976-04-07 1977-04-07 Use of cyanine dyes in photographic direct positive recording material CH628746A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4891276A IT1057476B (it) 1976-04-07 1976-04-07 Coloranti cianinici contenenti un nucleo di imidazo 4.5.b chinossalina sostituita e loro uso in elementi fotografici

Publications (1)

Publication Number Publication Date
CH628746A5 true CH628746A5 (en) 1982-03-15

Family

ID=11269004

Family Applications (1)

Application Number Title Priority Date Filing Date
CH446077A CH628746A5 (en) 1976-04-07 1977-04-07 Use of cyanine dyes in photographic direct positive recording material

Country Status (9)

Country Link
AR (1) AR216761A1 (fr)
BE (1) BE853348A (fr)
CA (1) CA1066704A (fr)
CH (1) CH628746A5 (fr)
DE (1) DE2715436C2 (fr)
FR (1) FR2347414A1 (fr)
GB (1) GB1555053A (fr)
IT (1) IT1057476B (fr)
MX (1) MX148090A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058839B1 (fr) * 1981-02-23 1986-04-16 Minnesota Mining And Manufacturing Company Composés organiques donneurs d'électrons sensibilisés

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431111A (en) * 1963-06-10 1969-03-04 Eastman Kodak Co Cyanine dyes
US3567438A (en) * 1968-03-25 1971-03-02 Eastman Kodak Co Organic photoconductors sensitized with pyrylium cyanine dyes
US3632808A (en) * 1968-08-08 1972-01-04 Eastman Kodak Co Cyanine dyes containing an imidazo (4 5-b)quinoxaline nucleus

Also Published As

Publication number Publication date
DE2715436A1 (de) 1977-10-20
CA1066704A (fr) 1979-11-20
DE2715436C2 (de) 1986-10-30
GB1555053A (en) 1979-11-07
FR2347414A1 (fr) 1977-11-04
MX148090A (es) 1983-03-11
IT1057476B (it) 1982-03-10
FR2347414B1 (fr) 1981-10-23
BE853348A (fr) 1977-10-07
AR216761A1 (es) 1980-01-31

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Legal Events

Date Code Title Description
PL Patent ceased