GB1326789A - Photoconductive compositions - Google Patents

Photoconductive compositions

Info

Publication number
GB1326789A
GB1326789A GB4682470A GB4682470A GB1326789A GB 1326789 A GB1326789 A GB 1326789A GB 4682470 A GB4682470 A GB 4682470A GB 4682470 A GB4682470 A GB 4682470A GB 1326789 A GB1326789 A GB 1326789A
Authority
GB
United Kingdom
Prior art keywords
aryl
alkyl
heterocyclic
oct
poly
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
GB4682470A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1326789A publication Critical patent/GB1326789A/en
Expired legal-status Critical Current

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
    • G03G5/0664—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)
  • Photoreceptors In Electrophotography (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

1326789 Photoconductive composition EASTMAN KODAK CO 1 Oct 1970 [3 Oct 1969] 46824/70 Heading H1K A photoconductive composition comprising a photoconductor and a sensitizing dye of formula wherein Q 2 represents the atoms necessary to complete a heterocyclic ring having 5 or 6 atoms in the nucleus; R 1 and R 2 are alkyl, COR 5 , H, aryl or heterocyclic or together the atoms necessary to complete a heterocyolic ring: R 5 is alkyl, aryl, alkoxy, amino or heterocyclic; R, and R 8 are H, alkyl or aryl; m is 1 or 2 and L is a methine group. In the specific embodiment a support of polyethylene terephthalate having an organic conducting coating thereon is coated with a mixture of 3-[-(1-N-methylaniline-4,6-dip - tolyl - 2(1H) - pyridylene) - ethylidene] - 2H- pyrido [1,2-a] pyrinridine-2,4-(3H) dione as sensitizer; poly(vinyl-m-bromobenzoate-co-vinyl acetate) or poly (4,41-isopropylidene-bisphenylene oxyethylene-co-ethylene isophthalate) as binder and 3(4-diphenyl aminophenyl) propionic acid or methyl proprionate, 4-carboxy triphenylamine or bis-4-diethylamino tetraphenylmethane. Many other supports, sensitizers, binders and photoconductors are specified. The dye sensitizer may be bleached by exposure to intense light.
GB4682470A 1969-10-03 1970-10-01 Photoconductive compositions Expired GB1326789A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87048569A 1969-10-03 1969-10-03

Publications (1)

Publication Number Publication Date
GB1326789A true GB1326789A (en) 1973-08-15

Family

ID=25355481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4682470A Expired GB1326789A (en) 1969-10-03 1970-10-01 Photoconductive compositions

Country Status (8)

Country Link
US (1) US3658521A (en)
JP (1) JPS4837610B1 (en)
AU (1) AU2064870A (en)
BE (1) BE757069A (en)
CA (1) CA934206A (en)
DE (1) DE2047339A1 (en)
FR (1) FR2064908A5 (en)
GB (1) GB1326789A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364740A (en) * 1992-12-30 1994-11-15 Minnesota Mining And Manufacturing Company Bleaching of dyes in photosensitive systems

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052540A (en) * 1954-06-02 1962-09-04 Rca Corp Dye sensitization of electrophotographic materials
BE550650A (en) * 1955-08-30
BE626528A (en) * 1961-10-23
DE1213240B (en) * 1964-02-13 1966-03-24 Agfa Gevaert Ag Light-sensitive photographic material with at least one optically sensitized halogen silver emulsion layer containing at least one azo dye for the silver dye bleaching process
DE1239197B (en) * 1964-09-30 1967-04-20 Agfa Gevaert Ag Method for bleaching sensitizers
US3526502A (en) * 1966-07-18 1970-09-01 Matsushita Electric Ind Co Ltd Electrophotographic material
US3488705A (en) * 1967-12-04 1970-01-06 Eastman Kodak Co Thermally unstable organic acid salts of triarylmethane dyes as sensitizers for organic photoconductors

Also Published As

Publication number Publication date
CA934206A (en) 1973-09-25
DE2047339A1 (en) 1971-04-08
BE757069A (en) 1971-03-16
FR2064908A5 (en) 1971-07-23
DE2047339C3 (en) 1974-10-31
AU2064870A (en) 1972-04-13
JPS4837610B1 (en) 1973-11-12
DE2047339B2 (en) 1974-04-11
US3658521A (en) 1972-04-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee