GB1254196A - Electrophotographic materials - Google Patents
Electrophotographic materialsInfo
- Publication number
- GB1254196A GB1254196A GB07499/69A GB1749969A GB1254196A GB 1254196 A GB1254196 A GB 1254196A GB 07499/69 A GB07499/69 A GB 07499/69A GB 1749969 A GB1749969 A GB 1749969A GB 1254196 A GB1254196 A GB 1254196A
- Authority
- GB
- United Kingdom
- Prior art keywords
- linkage
- joined
- nucleus
- april
- dimethine
- 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
- C09B23/10—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
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
- G03G5/0664—Dyes
- G03G5/0666—Dyes containing a methine or polymethine group
- G03G5/0668—Dyes containing a methine or polymethine group containing only one methine or polymethine group
- G03G5/067—Dyes containing a methine or polymethine group containing only one methine or polymethine group containing hetero rings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
1,254,196. Photoconductive composition. EASTMAN KODAK CO. 3 April, 1969 [8 April, 1968], No. 17499/69. Heading H1K. An organic photoconductor is sensitized by a cyanine dye comprising first and second nitrogen-containing-hetarocyclic nuclei having 5 or 6 carbon atoms in the heterocyclic ring, joined by a dimethine-linkage wherein the first nucleus is a carbazole nucleus joined at the 3-carbon atom thereof to the dimethine linkage and the second nucleus is joined by a carbon atom to the linkage. In the specific embodiment an electrophotographic plate is made by coating a mixture of a polyester, 4,4<SP>1</SP>-bis-(diethylamino) - 2,2<SP>1</SP> - dimethylphenylmethane and 1,3 - diethyl - 2 - # - (9 - methyl - 3 - carbazolyl vinylimidazo - [4,5 - b]- quinoxalinium iodide on an aluminium surface. Other suitable sensitizing dyes and organic photoconductors are specified.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71969068A | 1968-04-08 | 1968-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1254196A true GB1254196A (en) | 1971-11-17 |
Family
ID=24890993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB07499/69A Expired GB1254196A (en) | 1968-04-08 | 1969-04-03 | Electrophotographic materials |
Country Status (5)
Country | Link |
---|---|
US (1) | US3579331A (en) |
BE (1) | BE731210A (en) |
DE (1) | DE1912587A1 (en) |
FR (1) | FR2005771A1 (en) |
GB (1) | GB1254196A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3871880A (en) * | 1972-12-01 | 1975-03-18 | Pitney Bowes Inc | Organic photoconductor for electrophotography |
US3923508A (en) * | 1974-01-10 | 1975-12-02 | Desoto Inc | Dyed polyvinyl carbazole photoconductive layer |
AU2239683A (en) * | 1982-12-16 | 1984-06-21 | Vickers Plc | Photoconductive compositions |
US5141831A (en) * | 1989-08-15 | 1992-08-25 | Mitsubishi Paper Mills Limited | Electrophotographic photoreceptor |
-
1968
- 1968-04-08 US US719690A patent/US3579331A/en not_active Expired - Lifetime
-
1969
- 1969-03-12 DE DE19691912587 patent/DE1912587A1/en active Pending
- 1969-04-03 GB GB07499/69A patent/GB1254196A/en not_active Expired
- 1969-04-08 FR FR6910611A patent/FR2005771A1/fr not_active Withdrawn
- 1969-04-08 BE BE731210D patent/BE731210A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1912587B2 (en) | 1970-11-12 |
US3579331A (en) | 1971-05-18 |
FR2005771A1 (en) | 1969-12-19 |
DE1912587A1 (en) | 1969-10-30 |
BE731210A (en) | 1969-09-15 |
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