GB812924A - Improvements in sensitising dyes for photographic silver halide emulsions - Google Patents
Improvements in sensitising dyes for photographic silver halide emulsionsInfo
- Publication number
- GB812924A GB812924A GB30312/55A GB3031255A GB812924A GB 812924 A GB812924 A GB 812924A GB 30312/55 A GB30312/55 A GB 30312/55A GB 3031255 A GB3031255 A GB 3031255A GB 812924 A GB812924 A GB 812924A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethyl
- silver halide
- substituted
- halide emulsions
- photographic silver
- 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
- -1 silver halide Chemical class 0.000 title abstract 4
- 239000000975 dye Substances 0.000 title abstract 2
- 239000000839 emulsion Substances 0.000 title 1
- 230000001235 sensitizing effect Effects 0.000 title 1
- 229910052709 silver Inorganic materials 0.000 title 1
- 239000004332 silver Substances 0.000 title 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 3
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 150000001450 anions Chemical class 0.000 abstract 1
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 1
- 239000000298 carbocyanine Substances 0.000 abstract 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 abstract 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 150000003839 salts Chemical group 0.000 abstract 1
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
- C09B23/02—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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Unsymmetrical carbocyanine dyes of the general formula <FORM:0812924/IV (c)/1> wherein R and R1 are substituted or unsubstituted alkyl or aralkyl groups, R2 is an alkyl, hydroxyalkyl or aryl group, V is an aryl group, n and n1 are 1 or 2 and X represents an anion, are prepared by reacting a quaternary salt of a chloro-substituted 2-methylbenzimidazole with a phenyl-substituted benzoxazole base carrying a 2-(o -anilformyl methylene) group. Examples are given of the preparation of dyes wherein n is 2, n1 is 1, V is phenyl and R1 is ethyl, and wherein R is p-carboxybenzyl and R2 is ethyl, or wherein R is ethyl and R2 is b -hydroxyethyl. Specification 505,979, [Group XX], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE812924X | 1954-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB812924A true GB812924A (en) | 1959-05-06 |
Family
ID=3881229
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2948/57A Expired GB815172A (en) | 1954-10-22 | 1955-10-24 | Improvements in sensitising dyes for photographic silver halide emulsions |
| GB30312/55A Expired GB812924A (en) | 1954-10-22 | 1955-10-24 | Improvements in sensitising dyes for photographic silver halide emulsions |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2948/57A Expired GB815172A (en) | 1954-10-22 | 1955-10-24 | Improvements in sensitising dyes for photographic silver halide emulsions |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB815172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3244526A (en) * | 1962-02-23 | 1966-04-05 | Gen Aniline & Film Corp | Benzimidazole cyanine dyes containing in alpha-position a carboethoxy group on the methine chain |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555481A (en) * | 1983-01-25 | 1985-11-26 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsions containing benzimidazolocarbocyanine dye having fluoroalkyl group at the nitrogen atom of benzimidazole |
| JPS6132840A (en) * | 1984-07-25 | 1986-02-15 | Fuji Photo Film Co Ltd | Photosensitive silver halide material |
-
1955
- 1955-10-24 GB GB2948/57A patent/GB815172A/en not_active Expired
- 1955-10-24 GB GB30312/55A patent/GB812924A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3244526A (en) * | 1962-02-23 | 1966-04-05 | Gen Aniline & Film Corp | Benzimidazole cyanine dyes containing in alpha-position a carboethoxy group on the methine chain |
Also Published As
| Publication number | Publication date |
|---|---|
| GB815172A (en) | 1959-06-17 |
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