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1. 发明专利

JPH11189571A PRODUCTION OF STILBENE-BASED COMPOUND 失效
公开(公告)号：JPH11189571A
公开(公告)日：1999-07-13
申请号：JP26950098
申请日：1998-09-24
申请人： MITSUBISHI CHEM CORP
发明人： SAIDA ATSURO , ONO HITOSHI
IPC分类号： G03G5/06 , C07C209/78 , C07C211/54 , C07C211/56 , C07C213/08 , C07C217/92 , C09B23/00
摘要： PROBLEM TO BE SOLVED: To provide a method for producing the subject compound suitable for provision of a high-sensitive and high-durable photosensitive substrate for electrophotograph by reacting a specific aldehyde under heating a presence of a specific reagent. SOLUTION: This compound shown by formula II [R and R are R and R respectively, the bond sites of R and R (R =R ) to the corresponding benzene rings are the same, the bond sites of R and R (R =R ) to the corresponding benzene rings are the same, excluding that R to R are simultaneously H] is obtained by reacting (A) an aldehyde of formula I [R and R are each H, a halogen, (substituent-containing) alkyl or (substituent-containing) alkoxy] in the presence of (B) an reagent prepared from (i) chlorodiphenylphosphine and (ii) sodium hydride in an organic solvent under heating.

2. 发明专利

JPH10161327A PHOTORECEPTOR FOR ELECTOPHOTOGRAPHY 失效
公开(公告)号：JPH10161327A
公开(公告)日：1998-06-19
申请号：JP32402396
申请日：1996-12-04
申请人： MITSUBISHI CHEM CORP
发明人： SAIDA ATSURO , FUJII ASATERU
IPC分类号： G03G5/06
摘要： PROBLEM TO BE SOLVED: To ensure high sensitivity and to suppress the rise of residual potential by incorporating a specified stilbene compd. into a photosensitive layer. SOLUTION: This photoreceptor contains a stilbene compd. represented by formula I in the photosensitive layer. In the formula I, at least one of Ar and Ar is a group represented by formula II, etc., the other is alkyl, etc., Ar is arylene, etc., when Ar is not a group represented by the formula II, etc., Ar and Ar may bond to each other optionally through a bonding group, when Ar is not a group represented by the formula II, etc., Ar and Ar may bond to each other optionally through a bonding group, and R and R or R and R may bond to each other optionally through a bonding group. Each of R -R is H, etc., R is aryl, etc., (n) is 0 or an integer of 1-5, in the case of n>=2, R 's may be different from each other and R 's may be different from each other. In the formula II, A is a benzene ring and has a condensed ring contg. a divalent residue Z forming a cyclic structure and each of R and R is H, etc.

3. 发明专利

JP2002244316A METHOD FOR MANUFACTURING COATING LIQUID FOR ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效
公开(公告)号：JP2002244316A
公开(公告)日：2002-08-30
申请号：JP2001038713
申请日：2001-02-15
申请人： MITSUBISHI CHEM CORP
发明人： SAIDA ATSURO
IPC分类号： G03G5/05 , B05D7/00
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a coating liquid for an electrophotographic photoreceptor, the liquid preventing deterioration in the quality even for long-term storage and to provide a method for manufacturing the electrophotographic photoreceptor by using the above coating liquid. SOLUTION: In the method for manufacturing the liquid to be applied on the surface of the substrate of an electrophotographic photoreceptor, a mixture liquid is prepared by mixing the source material and a solvent and then the mixture liquid is filtered through a membrane filter. The mixture liquid is preferably is filtered through a cotton filter, then through a glass filter and then through the membrane filter. Even when the coating liquid after long-term storage is applied on the substrate surface, a photoreceptor of high performance with extremely little image defects can be manufactured.

4. 发明专利

JP2002080432A ARYLAMINE COMPOUND, METHOD FOR PRODUCING THE SAME, AND ELECTROPHOTOGRAPHIC SENSITIZER USING THE SAME 失效
公开(公告)号：JP2002080432A
公开(公告)日：2002-03-19
申请号：JP2001182746
申请日：2001-06-18
申请人： MITSUBISHI CHEM CORP
发明人： MIMORI MITSUSACHI , IDA KAZUTAKA , OHASHI TOYOJI , RIN MAMORU , SAIDA ATSURO
IPC分类号： G03G5/06 , C07C209/68 , C07C211/54 , C07C211/58 , C07C211/61 , C07C217/92
摘要： PROBLEM TO BE SOLVED: To provide an arylamine which has excellent solubility in coating solutions and excellent compatibility with binders, and can stably produce electrophotosensitizers. SOLUTION: This arylamine compound which has an arylamine residue and two or four double bonds in the molecule and can be belonged to a C2 space group or a Cs space group in response to the geometrical isomerism of the double bonds, characterized in that the rate of the Z-isomer in the geometrical isomerism of the double bonds directly bonded to the arylamine residue is 30 to 85%.

5. 发明专利

JPH07281470A ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效
公开(公告)号：JPH07281470A
公开(公告)日：1995-10-27
申请号：JP6862394
申请日：1994-04-06
申请人： MITSUBISHI CHEM CORP
发明人： SAIDA ATSURO , MAEDA SHUICHI , MITO KAZUYUKI , KASUYA SHIGEAKI , YOSHIE KENICHI
IPC分类号： G03G5/147 , B82B1/00
摘要： PURPOSE:To obtain an org. photoreceptor having satisfactory electrical characteristics and excellent in durability by incorporating fullerenes into a surface layer. CONSTITUTION:A photosensitive layer having a reverse two-layered structure is formed on an electric conductive substrate by successively laminating an electric charge transferring layer based on an electric charge transferring material and a resin binder and an electric charge generating layer based on an electric charge generating material and a surface layer is formed on the photoreceptive layer to obtain an electrophotographic photoreceptor. At this time, fullerenes are incorporated into the surface layer. The fullerenes are carbon cluster compds. typified by C60 and include C70, C76, C78, C82, C84, C90 and C95 besides C60. When such fullerenes are mixed with various resin binders, the transfer of electrons is smoothened and the surface layer exhibits superior characteristics as a surface protecting layer.

6. 发明专利

JPH11352709A ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效
公开(公告)号：JPH11352709A
公开(公告)日：1999-12-24
申请号：JP15581598
申请日：1998-06-04
申请人： MITSUBISHI CHEM CORP
发明人： SAIDA ATSURO
IPC分类号： G03G5/06
摘要： PROBLEM TO BE SOLVED: To obtain an electrophotographic photoreceptor which is very high in sensitivity and small in residual potential causing a fog and superior in durability by incorporating a specified arylamine compound in a photosensitive layer. SOLUTION: This electrophotographic photoreceptor contains in the photosensitive layer an arylamine compound represented by the formula in which each of Ar1 -Ar4 is, independently, an optionally substituted alkyl, aralkyl, aryl, heterocyclic, or condensed polycyclic group and they may be mutually the same or different; R1 is an each optionally substituted alkylene, aralkylene, alkenylene, arylene, or divalent heterocyclic group; and each of benzene rings A and B may be substituted by a hydroxy, halogen, optionally substituted alkyl, or optionally substituted alkoxy group, or the like and in the case of being substituted by 2-4 groups, they may be same as each other or different from each other.

7. 发明专利

JPH11305459A ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效
公开(公告)号：JPH11305459A
公开(公告)日：1999-11-05
申请号：JP12815598
申请日：1998-04-21
申请人： MITSUBISHI CHEM CORP
发明人： OHASHI TOYOJI , WATABE JUNKO , SAIDA ATSURO
IPC分类号： G03G5/06
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having good well- balanced electrification ability, sensitivity, dark attenuation, residual potential, environmental characteristics and repetitive characteristics. SOLUTION: Relating to an electrophotographic photoreceptor obtd. by forming a photosensitive layer on an electrically conductive substrate, a dihydroxy-silicon phthalocyanine compd. is used as an electric charge generating material and a compd. having an enamine skeleton is used as an electric charge transferring material. The objective electrophotographic photoreceptor excellent particularly in sensitivity characteristics and electric charge retentivity is obtd. This photoreceptor can be effectively and adequately used in a printer, a facsimile or a copying machine.

8. 发明专利

JPH10282698A ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效
公开(公告)号：JPH10282698A
公开(公告)日：1998-10-23
申请号：JP10083497
申请日：1997-04-04
申请人： MITSUBISHI CHEM CORP
发明人： SAIDA ATSURO
IPC分类号： G03G5/06
摘要： PROBLEM TO BE SOLVED: To provide the electrophotographic photoreceptor extremely high in sensitivity and high in performance and good in operability by incorporating a specified stilbene compound specified in sterical structure in a photosensitive layer. SOLUTION: This electrophotographic photosensitive is provided on a conductive substrate with the photosensitive layer containing the stilbene compound represented by formula I and a trans-trans isomer content of >=80 mol% of the total isomers in the 2 double bonds in the steric structure of the stilbene compound. In formula I, Y is a group represented by formulae II-IV; each of Ar and Ar is an alkyl or aralkyl group or the like; each of Ar , Ar , A , and Ar is an arylene or divalent heterocylic group or the like; each of Ar , Ar , A , and A is an H atom or an alkyl group or the like; each of R and R is an aryl or heterocyclic group or the likes and in formulae II-IV, A is a divalent hydrocarbon group; each of A and A is an alkylene or arylene group or the like; each of R and R is an H atom an alkyl group or the like; and (n) is >=2 integer.

9. 发明专利

JPH09297415A ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效
公开(公告)号：JPH09297415A
公开(公告)日：1997-11-18
申请号：JP12836896
申请日：1996-05-23
申请人： MITSUBISHI CHEM CORP
发明人： MIMORI MITSUSACHI , MURAYAMA TETSUO , SAIDA ATSURO
IPC分类号： G03G5/06
摘要： PROBLEM TO BE SOLVED: To obtain an electrophotographic photoreceptor having high sensitivity, low residual potential and high durability by incorporating a specified arylamine hydrazone compd. into a layer on an electrically conductive substrate. SOLUTION: An arylamine hydrazone compd. represented by formula I is incorporated into a layer on the electrically conductive substrate. In the formula I, (n) is an integer of >=2, each of R -R is H, alkyl which may have a substituent, aryl which may have a substituent, etc., and P is a group represented by formula II, wherein each of Ar and Ar is alkyl which may have a substituent, aryl which may have a substituent or a heterocyclic group which may have a substituent and Q is a group represented by formula III, wherein each of R and R is aryl which may have a substituent, a heterocyclic group which may have a substituent, alkyl which may have a substituent, etc. The objective electrophotographic photoreceptor having high sensitivity, low residual potential and high durability is obtd.

10. 发明专利

JPH0950138A ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效
公开(公告)号：JPH0950138A
公开(公告)日：1997-02-18
申请号：JP20214795
申请日：1995-08-08
申请人： MITSUBISHI CHEM CORP
发明人： MIMORI MITSUSACHI , MAEDA SHUICHI , SAIDA ATSURO
IPC分类号： G03G5/06
摘要： PROBLEM TO BE SOLVED: To obtain an electrophotographic photoreceptor having high sensitivity and low residual potential, less liable to change in characteristics even after repeated use and excellent in durability by forming a photosensitive layer contg. a specified arylamine compd. SOLUTION: This photoreceptor has a photosensitive layer contg. an arylamine compd. represented by formula I on the electrically conductive substrate. In the formula, each of X1 and X2 is H or a group represented by formula II or III, Y is a group represented by the formula-O-A -O- or -A -O-A - (where A is a divalent residue of hydrocarbon and each of A and A is on alkylene, allylene or a group formed by bonding alkylene to allylene), each of R -R , R ' and R ' is H, a halogen, alkyl, alkoxy or substd. amino and each of R -R is H, an alkyl, aryl or a heterocyclic group.

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