GB1290441A - - Google Patents

Info

Publication number
GB1290441A
GB1290441A GB1290441DA GB1290441A GB 1290441 A GB1290441 A GB 1290441A GB 1290441D A GB1290441D A GB 1290441DA GB 1290441 A GB1290441 A GB 1290441A
Authority
GB
United Kingdom
Prior art keywords
atoms
alkyl group
group containing
layer
jan
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
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 filed Critical
Publication of GB1290441A publication Critical patent/GB1290441A/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
    • G03G5/09—Sensitisors or activators, e.g. dyestuffs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1290441 Electrophotographic element RANK XEROX Ltd 16 Jan 1970 [17 Jan 1969] 2177/70 Heading H1K An electrophotographic element comprises a layer including zinc oxide, a binder and a sensitizing substance of formula wherein R 1 is H, halogen, R or OR; R is an alkyl group containing 1 to 7 C atoms, R 2 and R 3 are each an alkyl group containing 1 to 7 C atoms and R 4 is (CH 2 ) n SO 3 H or (CH 2 ) n CO 2 H, n being an integer from 1 to 7, or of formula wherein R 1 , R 2 , R 3 and R 4 are as above, R 5 and R 6 are each H, NO 2 , halogen, CN, OR, or CO<SP>2</SP>R, R is an alkyl group containing 1 to 7 C atoms with the proviso that R 5 and R 6 cannot both be hydrogen. In the specific embodiments R 1 =H, CH 3 O, CH 3 and Cl, R 2 and R 3 = CH 3 and C 3 H 7 , n = 2, 3 and 4 and R 5 and/or R 6 = NO 2 , CH 3 O, Br and CO 2 C 2 H 5 . The binder may be a mixture of styrenated alkyd resin and the reaction product of trimethylol propane and tolylene di-isocyanate. A support of paper is provided for the layer. The ingredients for the layer may be mixed in a ball mill and coated on a support in the dark so that the colour of the sensitizer is not removed.
GB1290441D 1969-01-17 1970-01-16 Expired GB1290441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44003261A JPS4946264B1 (en) 1969-01-17 1969-01-17

Publications (1)

Publication Number Publication Date
GB1290441A true GB1290441A (en) 1972-09-27

Family

ID=11552512

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1290441D Expired GB1290441A (en) 1969-01-17 1970-01-16

Country Status (4)

Country Link
US (1) US3660086A (en)
JP (1) JPS4946264B1 (en)
DE (1) DE2001905C3 (en)
GB (1) GB1290441A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980480A (en) * 1970-09-01 1976-09-14 Urbain Leopold Laridon Photographic recording and reproduction of information photochromic composition containing polyhalogenated hydrocarbon, spiropyran compound and heterocyclic mercapto compound and the use thereof
JPS4913354B1 (en) * 1970-12-19 1974-03-30
US3930851A (en) * 1971-10-06 1976-01-06 Fuji Photo Film Co., Ltd. Electrophotographic process using methylene indoline photoconductive derivatives
JPS5544935B2 (en) * 1972-06-27 1980-11-14
US3923524A (en) * 1973-10-29 1975-12-02 Eastman Kodak Co Fogged direct positive silver halide emulsions containing photographic sensitizing dyes derived from substituted salicylaldehydes
US4029506A (en) * 1974-10-21 1977-06-14 E. I. Du Pont De Nemours And Company Universal product code marking composition containing a photosensitive dye former, a pigment and a binder and the use thereof
US4207102A (en) * 1974-10-21 1980-06-10 E. I. Du Pont De Nemours And Company Marking transfer sheets and process
AU507694B2 (en) * 1975-06-14 1980-02-21 Hoechst Aktiengesellschaft Electrophotographic reproduction
US4197124A (en) * 1975-07-29 1980-04-08 Fuji Photo Film Co., Ltd. Non-treatment type planographic printing plate materials
JPS606499B2 (en) * 1976-07-28 1985-02-19 富士写真フイルム株式会社 Image forming material and image forming method
US4198237A (en) * 1976-07-28 1980-04-15 Fuji Photo Film Co., Ltd. Image forming materials and image forming process
US4387149A (en) * 1978-10-13 1983-06-07 Mitsubishi Paper Mills, Ltd. Electrophotographic sensitive material having a dye sensitizer containing a carbonium atom
US4232108A (en) * 1979-05-01 1980-11-04 E. I. Du Pont De Nemours And Company Marking transfer sheets
DE3509147A1 (en) * 1985-03-14 1986-09-18 Hoechst Ag, 6230 Frankfurt ELECTROPHOTOGRAPHIC RECORDING MATERIAL
JP3030471B2 (en) * 1991-03-13 2000-04-10 大塚化学株式会社 Crystal comprising indolinospirobenzothiopyran derivative and its ring-opening isomer, method for producing the same, and piezochromic material comprising the crystal
US6365312B1 (en) * 2001-05-24 2002-04-02 Xerox Corporation Marking particles
US6358655B1 (en) * 2001-05-24 2002-03-19 Xerox Corporation Marking particles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445225A (en) * 1965-10-01 1969-05-20 Xerox Corp Electrophotographic imaging process

Also Published As

Publication number Publication date
US3660086A (en) 1972-05-02
DE2001905C3 (en) 1978-11-09
DE2001905A1 (en) 1970-07-23
JPS4946264B1 (en) 1974-12-09
DE2001905B2 (en) 1978-03-09

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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