公开(公告)号：JPH0564564B2

公开(公告)日：1993-09-14

申请号：JP8584388

申请日：1988-04-06

Applicant: TORAY INDUSTRIES

Inventor： OOSHIMA KATSUNORI ,  SAITO MASAMI ,  SAKAMOTO SADAYUKI

IPC: B29C39/02 ,  B29C39/22 ,  B29C39/26 ,  B29L11/00 ,  C09J7/02

公开(公告)号：JPH0140342B2

公开(公告)日：1989-08-28

申请号：JP3771480

申请日：1980-03-25

Applicant: TORAY INDUSTRIES

Inventor： NAKAHARA KATSUJI ,  MATSURA KAZUO ,  OOSHIMA KATSUNORI

IPC: G03G5/09 ,  G03G5/147

公开(公告)号：JPS57200046A

公开(公告)日：1982-12-08

申请号：JP8428381

申请日：1981-06-03

Applicant: TORAY INDUSTRIES

Inventor： MATSUURA KAZUO ,  KAKIMOTO AKIO ,  OOSHIMA KATSUNORI

IPC: G03G5/05 ,  G03G5/07

Abstract: PURPOSE:To obtain a transparent electrophotographic receptor by coating an electrically conductive transparent substrate with brominated polyvinylcarbazole using halogenated polycarbonate or a composition contg. it as a binder. CONSTITUTION:An electrically conductive transparent film formed by sputtering Pd on a biaxially stretched polyester film is coated with a soln. consisting of brominated polyvinylcarbazole as a photoconductor, halogenated polycarbonate and epoxy resin as a binder, and an org. solvent to form a photoconductive layer. Thus, a transparent electrophotographic receptor is obtd. By making use of the binder contg. halogenated polycarbonate, the compatibility of brominated polyvinylcarbazole with the binder is improved, and the resulting receptor has superior transparencey, sensitivity and durability.

公开(公告)号：JPS57161860A

公开(公告)日：1982-10-05

申请号：JP4814381

申请日：1981-03-31

Applicant: TORAY INDUSTRIES

Inventor： MATSUURA KAZUO ,  NAKAHARA KATSUJI ,  OOSHIMA KATSUNORI

IPC: C09B35/033 ,  C09B56/12 ,  G03G5/06

Abstract: PURPOSE:To obtain a photoreceptor high in electrostatic charge acceptance and charge retentivity in the dark, and superior in sensitivity and durability, by providing a charge generating layer containing a specified bisazo pigment and a charge transfer layer containing a specified carbostyril derivative on a substrate. CONSTITUTION:A charge generating layer containing >=1 kinds of bisazo pigments represented by the general formulae, and a charge transfer layer containing a carbostyril derivative represented by the general formula IV. In the formulaeI-IV, Ar is any of the formulae V-VII; R is H, 1-15C alkyl or an alkyl derivative, 6-10C aryl or its derivative, or the like; m is 0, 1, or 2; R1 is H, alkyl, phenyl, benzyl with 1-15C; R2 is H, alkyl, or an alkyl derivative with 1-15C; n is 1 or 2; X is O, S, =N-NH2, =N-NH-SO2-alkyl having 1-15C, =N-NH-SO2-phenyl or the like.

公开(公告)号：JPS57161752A

公开(公告)日：1982-10-05

申请号：JP4563781

申请日：1981-03-30

Applicant: TORAY INDUSTRIES

Inventor： MATSUURA KAZUO ,  NAKAHARA KATSUJI ,  OOSHIMA KATSUNORI

IPC: G03G5/06

Abstract: PURPOSE:To obtain the entitled photoreceptor superior in electrostatic charge acceptance, and charge retentivity in the dark, sensitivity, and durability, by adding a bisazo pigment to a charge generating layer and a pyrazoline derivative to a charge transfer layer. CONSTITUTION:An electrophotographic receptor consisting of a charge generating layer and a charge transfer layer is formed on a conductive substrate. The charge generating layer contains >=1 kinds of bisazo pigments represented by the formulaeI, II, and III (Ar is represented by the formulae IV, V, and VI; R is H, 1-15 alkyl or its derivatives, 6-10C alkyl, or its derivatives, 7-15C aralkyl, or its derivatives, amino or its derivatives, nitro, halogen, hydroxy, alkoxy, or acyl; m is 0, 1, or 2, when m is 2, R may not same. The charge transfer layer contains a pyrazoline derivative represented by the formula VII, in which X is H, dimethylamino, or diethylamino; n is 0 or 1; Ar1 is represented by formulae VIII, IX, and X; and R and m are such as mentioned above. The entitled photoreceptor high in electrostatic charge acceptance and charge retentivity in the dark, and superior in sensitivity and durability is obtained.

公开(公告)号：JPS56133741A

公开(公告)日：1981-10-20

申请号：JP3771480

申请日：1980-03-25

Applicant: TORAY INDUSTRIES

Inventor： NAKAHARA KATSUJI ,  MATSUURA KAZUO ,  OOSHIMA KATSUNORI

IPC: G03G5/09 ,  G03G5/147

Abstract: PURPOSE:To enhance the sensitivity, wear resistance, etc. without raising the residual potential and exerting unfavorable influence on the receptive potential and dark attenuation extent of the surface layer by forming a transparent insulating resin layer contg. a dye and a pyridinium salt on the photoconductive layer. CONSTITUTION:An insulating layer of =0.01pt.wt to 100pts.wt. of a transparent insulating resin. Thus, an electrophotographic receptor with superior dielectric strength and enhanced flexibility is obtd. The harmful photoconductive substance such as Se or Cd is not directly exposed to the surface of the receptor.

公开(公告)号：JPS5627155A

公开(公告)日：1981-03-16

申请号：JP10342279

申请日：1979-08-14

Applicant: TORAY INDUSTRIES

Inventor： MATSUURA KAZUO ,  NAKAHARA KATSUJI ,  OOSHIMA KATSUNORI

IPC: G03G5/08 ,  G03G5/14 ,  G03G5/147

Abstract: PURPOSE:To suppress crystallization of the Se (alloy) layer, prevent the degradation in photosensitivity, etc. owing to abrasion, improve durability and eliminate the anxiety in safety and sanitation owing to Se by providing the specific polyether compound layer on the surface of a photoreceptor having the Se (alloy) layer. CONSTITUTION:A photoconductive layer is formed by vapor deposition of Se or Se-Te alloy on a conductive substrate, and the organic solvent soln. of the polyether compound of main repetitive units shown by the formula (X is CO, SO, SO2; Ar is bivalent conjugate type aromatic hydrocarbon, both of which will not become phenylene groups having no substituents) is coated thereon to provide an insulation layer. Thereby, the photoreceptor which is high in receptive potential, is less in dark attenuation amount and has high sensitivity and dielectric strength characteristics is obtained. In addition, flexibility is improved and since the Se (alloy) is not exposed, there are no problems in terms of safety and sanitation and the degration owing to crystallization, etc. is prevented.

公开(公告)号：JPS55120039A

公开(公告)日：1980-09-16

申请号：JP2739079

申请日：1979-03-09

Applicant: TORAY INDUSTRIES ,  MITSUBISHI ELECTRIC CORP

Inventor： OOSHIMA KATSUNORI ,  YAMAGISHI HIDEKI ,  OONISHI MASARU ,  OONISHI RIYOUICHI

IPC: G03G5/02

Abstract: PURPOSE:To elongate the life of the title medium and provide superior charge retentivity by forming a charge implantation inhibiting layer and a wear resistant charge retentive layer consisting of specified glass beads and a crosslinkable organic compound on an electrically conductive support in order. CONSTITUTION:On polyester-base film 101 or the like electrically conductive layer 201 of palladium or the like is laid, and on layer 201 charge implantation inhibiting thin layer 5 of vinyl chloride/vinyl acetate copolymer is formed by coating or other method. About 20pts. of spherical or spheroidal nonporous glass beads 7 which have an average diameter of 1-50mu and are not aggregated practically are added to 150pts. of a crosslinkable organic silicon compound containing an epoxy group and a silanol group or a siloxane group in its molecule to prepare coating fluid 6, which is then coated onto layer 5, dried, and hardened to form wear resistant charge retentive layer 8. Thus, flexible long-life recording medium 4 is manufactured which undergoes little wear on the electrostatic recording head surface and gives a fine image even in an atmosphere of high humidity.

公开(公告)号：JPS5596956A

公开(公告)日：1980-07-23

申请号：JP337879

申请日：1979-01-18

Applicant: TORAY INDUSTRIES

Inventor： OOSHIMA KATSUNORI ,  OGAWA MASAYUKI

IPC: G03G5/08 ,  G03G5/14 ,  G03G5/147

Abstract: PURPOSE:To form an electrophotographic receptor composition prevented from crystallization in the photoreceptor layer and protected against abrasion, by providing a specified polyether compound layer on the Se photoreceptor surface. CONSTITUTION:A layer of polymer having units represented by the formula (X is SO2, SO, or CO), such as polydiphenyl-sulfoneether, polydiphenyl-sulfoxideether, polydiphenylcarbonylether, or these copolymer, or blend (preferably 40% or more of the total weight is the above units) is formed on the Se photoreceptor layer formed on a conductive layer in a thickness of 0.5-200mu, preferably 3-50mu. A preferable thickness of the Se layer is 0.1-250mu.

公开(公告)号：JPS5590953A

公开(公告)日：1980-07-10

申请号：JP16180178

申请日：1978-12-29

Applicant: TORAY INDUSTRIES

Inventor： OOSHIMA KATSUNORI

IPC: G03G5/07

Abstract: PURPOSE:To increase the sensitivity and durability, by uniaxially or biaxially orienting the photoconductive high molecular material or the compound material with photoconductive low molecular material. CONSTITUTION:A photoconductive high molecular material, such as polyvinyl carbazole, or a compound material of such high molecular material and photoconductive low molecular organic material, such as pyrazoline and oxazole, is oriented uniaxially or biaxially to form a photoconductive layer. Orientation may be performed by high speed extrusion orientation, rolling, tubular method or others, and the biaxial orientation is preferred. The low molecular material may be blended in the high molecular material, but the method of lamination by evaporating or coating on the oriented film is preferred. The degree of orientation should be so selected that the heat shrinkage rate at a temperature above the softening point of high molecular material layer, or the shrinkage rate when treated in a solvent dissolving the high molecular material layer components, may be preferably 5- 20%. Thus, as a result of orientation, the sensitivity is increased, and the strength, Young's modulus, and heat resistance are improved, so that the surface may be hardly scratched.