GB1555053A - Cyanine dyes - Google Patents
Cyanine dyesInfo
- Publication number
- GB1555053A GB1555053A GB1462577A GB1462577A GB1555053A GB 1555053 A GB1555053 A GB 1555053A GB 1462577 A GB1462577 A GB 1462577A GB 1462577 A GB1462577 A GB 1462577A GB 1555053 A GB1555053 A GB 1555053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyanine dyes
- formula
- dyes
- direct positive
- sensitises
- 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
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)
Abstract
Cyanine dyes of the formula <IMAGE> in which the substituents are defined in Claim 1 are used in photographic direct positive recording material. The use of the cyanine dyes of the formula VI sensitises direct positive emulsions, and said dyes can be used in at least one silver halide emulsion layer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4891276A IT1057476B (en) | 1976-04-07 | 1976-04-07 | CYANIN DYES CONTAINING AN IMIDAZO NUCLEO 4.5.B REPLACED KINOXALINE AND THEIR USE IN PHOTOGRAPHIC ELEMENTS |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1555053A true GB1555053A (en) | 1979-11-07 |
Family
ID=11269004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1462577A Expired GB1555053A (en) | 1976-04-07 | 1977-04-06 | Cyanine dyes |
Country Status (9)
Country | Link |
---|---|
AR (1) | AR216761A1 (en) |
BE (1) | BE853348A (en) |
CA (1) | CA1066704A (en) |
CH (1) | CH628746A5 (en) |
DE (1) | DE2715436C2 (en) |
FR (1) | FR2347414A1 (en) |
GB (1) | GB1555053A (en) |
IT (1) | IT1057476B (en) |
MX (1) | MX148090A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0058839A1 (en) * | 1981-02-23 | 1982-09-01 | Minnesota Mining And Manufacturing Company | Sensitized organic electron donor compounds |
Family Cites Families (3)
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 |
-
1976
- 1976-04-07 IT IT4891276A patent/IT1057476B/en active
-
1977
- 1977-04-05 AR AR26712277A patent/AR216761A1/en active
- 1977-04-06 DE DE19772715436 patent/DE2715436C2/en not_active Expired
- 1977-04-06 FR FR7710362A patent/FR2347414A1/en active Granted
- 1977-04-06 GB GB1462577A patent/GB1555053A/en not_active Expired
- 1977-04-06 CA CA275,705A patent/CA1066704A/en not_active Expired
- 1977-04-07 CH CH446077A patent/CH628746A5/en not_active IP Right Cessation
- 1977-04-07 BE BE176504A patent/BE853348A/en not_active IP Right Cessation
- 1977-09-06 MX MX16867077A patent/MX148090A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0058839A1 (en) * | 1981-02-23 | 1982-09-01 | Minnesota Mining And Manufacturing Company | Sensitized organic electron donor compounds |
Also Published As
Publication number | Publication date |
---|---|
DE2715436A1 (en) | 1977-10-20 |
AR216761A1 (en) | 1980-01-31 |
CA1066704A (en) | 1979-11-20 |
IT1057476B (en) | 1982-03-10 |
DE2715436C2 (en) | 1986-10-30 |
FR2347414A1 (en) | 1977-11-04 |
FR2347414B1 (en) | 1981-10-23 |
CH628746A5 (en) | 1982-03-15 |
MX148090A (en) | 1983-03-11 |
BE853348A (en) | 1977-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |