GB964884A - Electrophotographic materials and the production thereof - Google Patents
Electrophotographic materials and the production thereofInfo
- Publication number
- GB964884A GB964884A GB50799/63A GB5079963A GB964884A GB 964884 A GB964884 A GB 964884A GB 50799/63 A GB50799/63 A GB 50799/63A GB 5079963 A GB5079963 A GB 5079963A GB 964884 A GB964884 A GB 964884A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymers
- polyvinylcarbazole
- iodinated
- vinyl
- halogen
- 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
-
- 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
- G03G5/07—Polymeric photoconductive materials
- G03G5/071—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G5/072—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups
- G03G5/073—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups comprising pending carbazole groups
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
A photoconductive composition comprises a mixture of two or more polymers, at least one of which is photoconductive and at least one of which contains halogen. Specified photoconductive polymers are (a) those mentioned in Specification 964,878 (vinyl polymers and copolymers, and polyesters), (b) polymers and copolymers of polyvinylcarbazole, (c) polymers of vinyl compounds where the vinyl group is attached to an aromatic or heterocyclic nucleus through a divalent organic radical (e.g. methacryloxy and methacryloxyalkyl compounds), (d) vinyl polymers containing a side-chain of the type Ar-(CH=CH)n-CO-(CH=CH)m-Ar where m is 1 or 2 and n is 0 or 1, and (e) reaction products of halogenated polymers with aromatic or heterocyclic compounds. Specified halogen-containing polymers are polyvinyl halides and copolymers thereof, polyvinyl esters of chloroacids, chlorinated and sulphochlorinated polyethylene, rubber hydrohalides, chlorinated rubber, brominated and iodinated poly-N-vinyl-carbazole, iodinated polystyrene, the reaction product of polyvinyl chloride and pyridine, and polyesters of dicarboxylic and disulphonic acids with halogen-containing dihydroxy compounds. There may also be present one of the macromolecular substances mentioned in Specification 964,873, a metal-containing polymer (e.g. the mercuri-acetate of polyvinylcarbazole or of polystyrene), a sensitiser as in Specification 964,873, a plasticizer or one of the other agents mentioned in Specification 964,873. It is preferable but not essential to remove from the halogen-polymer the stabilizers normally present therein. The various polymers can be dissolved or dispersed in an organic liquid and the mixture evaporated. If the product is heated to 50-200 DEG C. an increase in photo-sensitivity is stated to occur. The preparation of the following polymers is described: polyvinylcarbazole, polypropenylcarbazole, brominated and iodinated polyvinylcarbazole, iodinated polystyrene, iodinated copolymer of polyvinylcarbazole and ethyl acrylate, and the condensation products of (a) polyvinylacetophenone with anthraldehyde or N-ethylcarbazole -2- aldehyde, (b) polyvinylacetylcarbazole with N-methylphenthiazine -3- aldehyde, and (c) polyvinyl chloride with fluorene. Specifications 856,770, 883,312 and 916,660 also are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5079960 | 1960-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB964884A true GB964884A (en) | 1964-07-22 |
Family
ID=10457404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB50799/63A Expired GB964884A (en) | 1960-05-05 | 1960-05-05 | Electrophotographic materials and the production thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB964884A (en) |
-
1960
- 1960-05-05 GB GB50799/63A patent/GB964884A/en not_active Expired
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