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71. 发明专利

JPH04153270A DIPHENYLAMINE COMPOUND AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR CONTAINING THE SAME 失效
公开(公告)号：JPH04153270A
公开(公告)日：1992-05-26
申请号：JP27617290
申请日：1990-10-17
申请人： MITSUI TOATSU CHEMICALS
发明人： OGUCHI TAKAHISA , KARASAWA AKIO , ITO NAOTO
IPC分类号： G03G5/06 , C07C251/86 , C07D209/82 , C07D215/58 , C09B55/00 , C09K9/02
摘要： PURPOSE:To obtain a photoreceptor improved in compatibility with and affinity for a binder, charge transport function, sensitivity, chargeability, stability of electrophotographic characteristics, and endurance to fatigue caused by repeated use by incorporating a specific compound. CONSTITUTION:An aldehyde compound of formula I [wherein Ar and Ar each represent an (un)substituted alkyl, an (un)substituted aromatic hydrocarbon group and an (un)substituted aromatic heterocyclic group, which may combine to form a ring; R to R each represent H, alkyl, alkoxy or halogen; R represents an (un)substituted aralkyl or Ar ; and X represents H or halogen] and a hydrazine compound of formula II (wherein Ar and Ar have the same meanings as Ar and Ar ) are subjected to a condensation reaction in a solvent, optionally in the presence of a catalyst, whereby a diphenylamine compound of formula III is obtained. A photosensitive layer obtained by dispersing in a binder a charge-generating material and a charge-transferring material comprising the above compound is provided on a support to obtain an electrophotographic photoreceptor.

72. 发明专利

JPH04122946A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPH04122946A
公开(公告)日：1992-04-23
申请号：JP24260790
申请日：1990-09-14
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO NAOTO , ENOMOTO TSUYOSHI , KARASAWA AKIO , YAMADA YASUYUKI
IPC分类号： G03G5/05
摘要： PURPOSE:To obtain the photosensitive body having a high sensitivity and less residual potential by adding sodium acetate to a charge generating layer contg. an azo compd. CONSTITUTION:Aluminum, copper, etc., are used as a base 1 and the fine particles of he azo compd. and the sodium acetate are dispersed into a soln. dissolved with a binder. This soln. is applied on the base 1 and is dried, by which the charge generating layer 2 is obtd. A soln. dissolved with a charge transfer material and a binder is applied thereon and is dried, by which a charge transfer layer 3 is produced. Polystyrene, polacrylamide, etc., are used as the binder. The thickness of the layer 2 is preferably 0.01 to 5mum and the thickness of the layer 3 is preferably 3 to 50mum. The ratio of the azo compd. in the layer 2 is specified to >=30wt.T and the amt. of the sodium acetate to be used is specified to 5 to 1000 pts. wt. per 10000 pts. wt. azo compd. The charge transfer material is incorporated at 10 to 95wt.% into the layer 3. Since the sodium acetate is added into the charge generating layer, the sensitivity is greatly improved.

73. 发明专利

JPH04120177A ANTHRAQUINONE BASED PIGMENT AND POLARIZING FILM USING SAID PIGMENT 失效
公开(公告)号：JPH04120177A
公开(公告)日：1992-04-21
申请号：JP23718490
申请日：1990-09-10
申请人： MITSUI TOATSU CHEMICALS
发明人： MISAWA TSUTAYOSHI , AKAHORI HIROYUKI , OGISO AKIRA , ITO NAOTO
IPC分类号： G02B5/30 , C09B23/00 , C09B55/00 , C09K19/60
摘要： PURPOSE:To obtain the title pigment having a specific structure obtained by binding anthraquinone which is a coloring nucleus through a coupling group of azomethylene or vinylene group to an aryl group and remarkably improved in polarizing performance and durability. CONSTITUTION:A dichroic anthraquinone based pigment expressed by formula I [X1, X2, X3 and X4 are H, halogen, hydroxyl, amino or lower alkylamino; Y is N or methyl; m and n are 0 or 1; R1 to R6 are H, halogen, alkyl or alkoxy; R7 is H or formula II to formula VI (R8 is H, alkyl, alkoxy, halogen, (substituted) phenyl, (substituted) cyclohexyl, (substituted) pyridyl, (substituted) diphenyl, (substituted) terphenyl or (substituted) naphthyl; Z is NH, O or S)] and having long and linear rod-like structure in molecular structure.

74. 发明专利

JPH0493366A TIN DICHLOROPHTHALOCYANINE AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR USING SAME 失效
公开(公告)号：JPH0493366A
公开(公告)日：1992-03-26
申请号：JP20923290
申请日：1990-08-09
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMADA YASUYUKI , OGUCHI TAKAHISA , ITO NAOTO
IPC分类号： G03G5/06 , C09B67/50
摘要： PURPOSE:To obtain an electrophotographic photoreceptor having a high sensitivity, a low residual electric potential, and excellent photoreceptor characteristics by using tin dichlorophthalocyanine which shows a characteristic pattern in an X-ray diffraction spectrum. CONSTITUTION:Tin dichlorophthalocyanine which shows a peak intensity at a Bragg angle (2theta+ or -0.2 deg.) 8.4 deg. of at least 4 times the peak intensity at other angle of diffraction. In an electrophotographic photoreceptor wherein a charge- generating substance and a charge-transporting substance are contained in a photosensitive layer formed on a conductive carrier, the tin dichlorophthalocyanine is used as the charge-generating substance, giving a photoreceptor having a high sensitivity, a low residual electric potential, and excellent photoreceptor characteristics.

75. 发明专利

JPH0490554A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPH0490554A
公开(公告)日：1992-03-24
申请号：JP20392890
申请日：1990-08-02
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMADA YASUYUKI , ENOMOTO TSUYOSHI , ITO NAOTO , YAMAGUCHI TERUHIRO
IPC分类号： G03G5/06 , C09B35/023 , C09B56/16
摘要： PURPOSE:To provide the photosensitive body having a sufficient sensitivity and good durability by incorporating specific diazo compds. into a photosensitive layer. CONSTITUTION:At least one of the azo compds. expressed by formula I are incorporated into the photosensitive layer 4 on a conductive substrate 1. The content of the azo compds. expressed by the formula I varies with the kinds of the photosensitive body and is preferably

76. 发明专利

JPH03275667A ELECTROPHOTOGRAPHIC PHOTORECEPTOR 失效
公开(公告)号：JPH03275667A
公开(公告)日：1991-12-06
申请号：JP7196190
申请日：1990-03-23
申请人： MITSUI TOATSU CHEMICALS
发明人： ENOMOTO TSUYOSHI , YAMADA YASUYUKI , ITO NAOTO , YAMAGUCHI TERUHIRO
IPC分类号： G03G5/06 , C07D209/08 , C07D209/10 , C07D209/12 , C07D209/30 , C07D209/36 , C07D209/40
摘要： NEW MATERIAL:The compound of formula I (R and R are H, alkyl, aryl or aralkyl; R is H, alkyl, aryl, aralkyl, alkoxy, alkylthio or dialkylamino; R is H, halogen, alkyl, aryl, aralkyl, alkoxy, alkylthio or dialkylamino; A and A are H, alkyl, aryl or aralkyl). EXAMPLE:The compound of formula II. USE:It is useful as a charge transfer substance. An electrophotographic photoreceptor can be produced by using the compound in combination with an electrically conductive substrate, a charge-generation substance, a binder, etc. The photoreceptor has high sensitivity as a charge transfer substance and exhibits excellent performance durable to repeated use. PREPARATION:The compound of formula I can be produced e.g. by reacting an aldehyde compound of formula III with equimolar amount of a compound of formula IV in a solvent.

77. 发明专利

JPH03265665A PREPARATION OF DICHLOROSILICON NAPHTHALOCYANINE 失效
公开(公告)号：JPH03265665A
公开(公告)日：1991-11-26
申请号：JP6262790
申请日：1990-03-15
申请人： MITSUI TOATSU CHEMICALS
发明人： OGUCHI TAKAHISA , ITO NAOTO
IPC分类号： C09K11/00 , C09B47/04 , C09B47/073 , C09B47/10 , G02B1/04
摘要： PURPOSE:To improve purity and make preparation easier and simpler by adding tetrachlorosilane dropwise to a specific solvent mixture, heating the resulting liq. to a specified temp., adding 1,3-diiminobenz(f)isoindoline to the liq. kept at the temp., and reacting tetrachlorosilane with 1,3-diiminobenz(f)isoindoline. CONSTITUTION:The reaction of tetrachlorosilane with 1,3-diiminobenz(f) isoindoline in a solvent mixture comprising tetralin and tri-n-butylamine is conducted by adding 0.3-3mol [based on 1mol of 1,3-diiminobenz(f)isoindoline]of tetrachlorosilane dropwise to the solvent mixture comprising tetralin and tri-n- butylamine in amt. of 5-30 times and 1-10 times, respectively, the amt. of 1,3- diiminobenz(f)isoindoline being added later, heating the resulting liq. to 100-200 deg.C, adding 1mol of 1,3-diiminobenz(f)isoindoline to the liq. kept at 100-200 deg.C, and subjecting the both reactants to cyclization reaction at 130-230 deg.C for 0.5-5hr.

78. 发明专利

JPH0372104B2 失效
公开(公告)号：JPH0372104B2
公开(公告)日：1991-11-15
申请号：JP18440083
申请日：1983-10-04
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO NAOTO , AIGA HIROSHI , KANO TAKASHI , NISHIHARA MASUMI
IPC分类号： C09B29/42

79. 发明专利

JPH03217459A PRODUCTION OF IMIDE COMPOUND 失效
公开(公告)号：JPH03217459A
公开(公告)日：1991-09-25
申请号：JP1180490
申请日：1990-01-23
申请人： MITSUI TOATSU CHEMICALS
发明人： OGISO AKIRA , AKAHORI HIROYUKI , MISAWA TSUTAYOSHI , ITO NAOTO
IPC分类号： C09K19/60 , C09B25/00
摘要： PURPOSE:To obtain the subject compound as dichroic coloring matter of yellow system suitable as pigment, dye, a color liquid crystalline material or a polarizer material in high purity by reacting specific dicarboxylic acid and amine in a phenolic derivative as a solvent with heating. CONSTITUTION:(A) Dicarboxylic acid such as 3'-hydroxyquinophthalon-5,6 dicarboxylic acid expressed by formula I (X is halogen, methyl or methoxy; n is 0 or 1) is reacted with (B) amine expressed by formula II (R is alkyl, aryl or heterocyclic group) in (C) a phenolic derivative such as m-cresol expressed by formula III [Y to Y are H or alkoxy (carbonyl or halogen)] as a solvent with heating to afford the aimed imide compound expressed by formula V. Besides, a temperature of said heating reaction is preferably 50-200 deg.C.

80. 发明专利

JPH03167182A PURIFICATION OF CARBOXYLIC ACID ANHYDRIDE 失效
公开(公告)号：JPH03167182A
公开(公告)日：1991-07-19
申请号：JP30640489
申请日：1989-11-28
申请人： MITSUI TOATSU CHEMICALS
发明人： MISAWA TSUTAYOSHI , AKAHORI HIROYUKI , OGISO AKIRA , ITO NAOTO
IPC分类号： C07D405/04
摘要： PURPOSE:To purify the subject acid anhydride as an intermediate of dyestuffs to a high-purity substance by reacting a specified dicarboxylic acid anhydride with a secondary amine in a solvent, filtering the reaction product and adding an acid to the filtrate for hydrolysis. CONSTITUTION:A dicarboxylic acid anhydride of formula I (X is alkyl, halogen or H) is reacted with a secondary amine (e.g. dimethylamine or diethanolamine) of formula II (R and R are 1-10C alkyl, alkoxyalkyl or hydroxyalkyl) to obtain a compound of formula III. The resultant reaction solution is then filtered for removal of impurities and an acid (preferably hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid or phosphoric acid) is added to the filtrate for hydrolysis, thus purifying the compound of formula I. In addition, room temperature - 200 deg.C and 1-10hrs are preferable as the reaction conditions between the compounds of formulae I and II.

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