GB1378548A - Spectrally sensitized direct positive silver halide emulsion layers - Google Patents

Spectrally sensitized direct positive silver halide emulsion layers

Info

Publication number
GB1378548A
GB1378548A GB3076072A GB3076072A GB1378548A GB 1378548 A GB1378548 A GB 1378548A GB 3076072 A GB3076072 A GB 3076072A GB 3076072 A GB3076072 A GB 3076072A GB 1378548 A GB1378548 A GB 1378548A
Authority
GB
United Kingdom
Prior art keywords
aryl
saturated
aliphatic hydrocarbon
unsaturated aliphatic
silver halide
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
GB3076072A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1378548A publication Critical patent/GB1378548A/en
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
    • 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
    • C09B23/04—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups one >CH- group, e.g. cyanines, isocyanines, pseudocyanines
    • 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
    • C09B23/06—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups three >CH- groups, e.g. carbocyanines
    • 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
    • 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
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/141—Direct positive material

Abstract

1378548 Methine dyes having a thiazole nucleus linked to the methine chain through the 5-position AGFA-GEVAERT AG 30 June 1972 [2 July 1971] 30760/72 Heading C4P [Also in Division G2] A methine dye used for sensitizing photographic direct-positive silver halide emulsions has one of the formulae where R<SP>1</SP> is saturated or unsaturated aliphatic hydrocarbon group which may be substituted, cycloalkyl or aryl; R<SP>2</SP>, R<SP>4</SP> and R<SP>8</SP> are each H, saturated or unsaturated aliphatic hydrocarbon group or aryl; R<SP>3</SP> is SR<SP>9</SP> or NR<SP>10</SP>R<SP>11</SP>; R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> are each H, saturated or unsaturated aliphatic hydrocarbon groups, aryl orcarbalkoxy and R<SP>5</SP> and R<SP>6</SP> may together complete a condensed benzene or naphthalene ring ; R<SP>9</SP>, R<SP>10</SP> and R<SP>11</SP> are each saturated or unsaturated aliphatic hydrocarbon groups or aryl and R<SP>10</SP> and R<SP>11</SP> may also together complete a heterocyclic ring; n is 0 or 1; m is 0 or 1; Anionis an anion, the anion being absent where R<SP>1</SP> or R<SP>4</SP> contains an acid group in anionic form; and Z completes a heterocyclic group containing a 5- or 6-membered heterocyclic ring, the aryl groups and heterocyclic groups completed by R<SP>10</SP> and R<SP>11</SP> and/or Z optionally carrying additional substituents. The formulae of 38 such dyes are given in the Specification.
GB3076072A 1971-07-02 1972-06-30 Spectrally sensitized direct positive silver halide emulsion layers Expired GB1378548A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712132937 DE2132937A1 (en) 1971-07-02 1971-07-02 SPECTRALLY SENSITIVIZED DIRECT POSITIVE EMULSION LAYERS

Publications (1)

Publication Number Publication Date
GB1378548A true GB1378548A (en) 1974-12-27

Family

ID=5812483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3076072A Expired GB1378548A (en) 1971-07-02 1972-06-30 Spectrally sensitized direct positive silver halide emulsion layers

Country Status (8)

Country Link
US (1) US3816138A (en)
BE (1) BE785075A (en)
CA (1) CA1040917A (en)
CH (1) CH566025A5 (en)
DE (1) DE2132937A1 (en)
FR (1) FR2144723B1 (en)
GB (1) GB1378548A (en)
IT (1) IT960910B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647544B2 (en) * 1973-03-27 1981-11-10
US5482825A (en) * 1994-12-23 1996-01-09 Eastman Kodak Company Silver halide emulsions containing fused dihydropyrimidines
WO2005016384A1 (en) * 2003-08-13 2005-02-24 Bf Research Institute, Inc. Probe for disease with amyloid deposit, amyloid-staining agent, remedy and preventive for disease with amyloid deposit and diagnostic probe and staining agent for neurofibril change

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501310A (en) * 1966-03-11 1970-03-17 Eastman Kodak Co Direct positive silver halide emulsions containing compounds which accept electrons and spectrally sensitize the emulsion
US3574629A (en) * 1967-08-14 1971-04-13 Eastman Kodak Co Direct positive silver halide emulsions containing 2-imino-3-thiozoline cyanine dyes
US3592653A (en) * 1967-10-05 1971-07-13 Eastman Kodak Co Silver halide emulsions containing pyrrole cyanine dyes

Also Published As

Publication number Publication date
US3816138A (en) 1974-06-11
DE2132937A1 (en) 1973-01-18
IT960910B (en) 1973-11-30
FR2144723B1 (en) 1977-08-26
BE785075A (en) 1972-12-19
CA1040917A (en) 1978-10-24
FR2144723A1 (en) 1973-02-16
CH566025A5 (en) 1975-08-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees