GB1310994A - Photographic supersensitising combination - Google Patents

Photographic supersensitising combination

Info

Publication number
GB1310994A
GB1310994A GB1310994DA GB1310994A GB 1310994 A GB1310994 A GB 1310994A GB 1310994D A GB1310994D A GB 1310994DA GB 1310994 A GB1310994 A GB 1310994A
Authority
GB
United Kingdom
Prior art keywords
photographic
supersensitising
combination
aug
alkyl
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
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
Publication of GB1310994A publication Critical patent/GB1310994A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/04Methine 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
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/14Styryl dyes
    • C09B23/145Styryl dyes the ethylene chain carrying an heterocyclic residue, e.g. heterocycle-CH=CH-C6H5
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08Sensitivity-increasing substances
    • G03C1/28Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed

Landscapes

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

Abstract

1310994 Supersensitized photographic silver halide emulsions ILFORD Ltd 2 Aug 1971 [12 Aug 1970] 38894/70 Addition to 1230449 Heading G2C A photographic silver halide emulsion is supersensitized in the green region with a dye of the formula where each of R 6 and R 7 is H or CH 3 , R 9 is alkyl of 1-4C, R 8 is -COOH or -SO 3 H, Z is a straight or branched alkylene chain containing up to 6C and X is an anion, or the corresponding zwitterion formed by elimination of X and the hydrogen of -SO 3 H, together with a styryl base of the formula where B completes a thiazole, benzothiazole, benzimidazole, oxazole or benzoxazole ring which may be substituted and R4 and R5 are each alkyl of 1-4C.
GB1310994D 1970-08-12 1970-08-12 Photographic supersensitising combination Expired GB1310994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3889470 1970-08-12

Publications (1)

Publication Number Publication Date
GB1310994A true GB1310994A (en) 1973-03-21

Family

ID=10406340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1310994D Expired GB1310994A (en) 1970-08-12 1970-08-12 Photographic supersensitising combination

Country Status (4)

Country Link
BE (1) BE771168A (en)
DE (1) DE2139890A1 (en)
FR (1) FR2104229A5 (en)
GB (1) GB1310994A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478720A (en) * 1993-04-01 1995-12-26 Konica Corporation Silver halide photographic emulsion and silver halide photographic light-sensitive material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478720A (en) * 1993-04-01 1995-12-26 Konica Corporation Silver halide photographic emulsion and silver halide photographic light-sensitive material

Also Published As

Publication number Publication date
FR2104229A5 (en) 1972-04-14
DE2139890A1 (en) 1972-02-17
BE771168A (en) 1972-02-11

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees