GB1316212A - Sensitisation of photographic silver halide layers for the silver dye bleach process - Google Patents

Sensitisation of photographic silver halide layers for the silver dye bleach process

Info

Publication number
GB1316212A
GB1316212A GB3303771A GB3303771A GB1316212A GB 1316212 A GB1316212 A GB 1316212A GB 3303771 A GB3303771 A GB 3303771A GB 3303771 A GB3303771 A GB 3303771A GB 1316212 A GB1316212 A GB 1316212A
Authority
GB
United Kingdom
Prior art keywords
sensitisation
methyl
cyclohexyl
halide layers
dye bleach
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
GB3303771A
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 GB1316212A publication Critical patent/GB1316212A/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
    • 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
    • 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials

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)
  • Organic Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Thiazole And Isothizaole Compounds (AREA)

Abstract

1316212 Benzthiazolyl-ureas AGFA-GEVAERT AG 14 July 1971 [18 July 1970] 33037/71 Heading C2C [Also in Divisions C4 and G2] N - Cyclohexyl - N<SP>1</SP> - (2 - methyl - 3 - sulphopropylbenzothiazol - 6 - yl) - urea is prepared by quaternization of N - cyclohexyl - N<SP>1</SP>- (2 - methyl - benzothiazol - 6 - yl)urea by boiling with propane sultone in anisole. N- cyclohexyl - N<SP>1</SP> - (2 - methyl - benzothiazolyl - 6- yl)wrea is prepared by heating 2-methyl-6- aminobenzothiazole and benzene to 60‹ C. and adding dropwise cyclohexyl isocyanate.
GB3303771A 1970-07-18 1971-07-14 Sensitisation of photographic silver halide layers for the silver dye bleach process Expired GB1316212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702035727 DE2035727A1 (en) 1970-07-18 1970-07-18 Sensitization of photographic halogen silver layers for the silver dye bleaching process

Publications (1)

Publication Number Publication Date
GB1316212A true GB1316212A (en) 1973-05-09

Family

ID=5777169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3303771A Expired GB1316212A (en) 1970-07-18 1971-07-14 Sensitisation of photographic silver halide layers for the silver dye bleach process

Country Status (6)

Country Link
US (1) US3778279A (en)
BE (1) BE769399A (en)
CH (1) CH581336A5 (en)
DE (1) DE2035727A1 (en)
FR (1) FR2103039A5 (en)
GB (1) GB1316212A (en)

Also Published As

Publication number Publication date
CH581336A5 (en) 1976-10-29
DE2035727A1 (en) 1972-02-03
US3778279A (en) 1973-12-11
FR2103039A5 (en) 1972-04-07
BE769399A (en) 1972-01-03

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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