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1. 发明专利

SG24085A1 Quinophthalone compounds and polarizing films using same 未知
公开(公告)号：SG24085A1
公开(公告)日：1996-02-10
申请号：SG1995000025
申请日：1995-02-24
申请人： MITSUI TOATSU CHEMICALS
发明人： OGISO AKIRA , ITOH HISATO , IMAI RIHOKO , OI RYU , MISAWA TSUTAMI , MATSUZAKI YORIAKI
IPC分类号： C09B57/00 , G02B5/30

2. 发明专利

JPH0811443A YELLOW COLORING MATTER FOR THERMAL TRANSFER RECORDING, INK COMPOSITION FOR THERMAL TRANSFER RECORDING AND TRANSFER SHEET 失效
公开(公告)号：JPH0811443A
公开(公告)日：1996-01-16
申请号：JP15190594
申请日：1994-07-04
申请人： MITSUI TOATSU CHEMICALS
发明人： MATSUZAKI YORIAKI , OGISO AKIRA , SHIMOKAWA YASUSHI , ITO NAOTO , TAKUMA HIROSUKE
IPC分类号： B41M5/385 , B41M5/388 , B41M5/39 , C09B29/42 , B41M5/38
摘要： PURPOSE:To obtain a transfer sheet having a high sublimation rate and excellent in image stability after transfer by using an ink compsn. prepared by compounding coloring matter for thermal transfer recording represented by a specific general formula, a binder resin and a solvent. CONSTITUTION:An ink compsn. for thermal transfer recording is prepared by compounding yellow coloring matter for thermal transfer recording represented by formula (R is a 3-8C branched or cyclic substituted or non- substituted alkyl group and R is a 5-10C branched or cyclic substituted or non-substituted alkoxyalkyl group), a binder resin and an org. solvent and/or water. This ink compsn. is applied to the single surface of a base material sheet and dried to form a coloring matter support layer to obtain a transfer sheet. When thermal transfer recording is performed, the transfer sheet is superposed on a material to be recorded and heated and pressed according to a recording pattern from the back surface of the transfer sheet by a thermal recording head to transfer the coloring matter on the transfer sheet to the material to be recorded.

3. 发明专利

JPH07325431A ELECTROPHOTOGRAPHIC TONER CONTAINING PYROMELLITIC ACID DERIVATIVE 失效
公开(公告)号：JPH07325431A
公开(公告)日：1995-12-12
申请号：JP12014694
申请日：1994-06-01
申请人： MITSUI TOATSU CHEMICALS
发明人： TAKUMA HIROSUKE , OGISO AKIRA , KURODA SHIZUO
IPC分类号： G03G9/097 , C07C233/65
摘要： PURPOSE:To obtain an electrophotographic toner contg. a colorless electric charge regulating agent not contg. a highly poisonous metal, having satisfactory compatibility with a resin, uniformly dispersible in the resin and ensuring superior electrostatic charge imparting property, electrostatic charge kick-off property, aging stability and environmental stability (humidity, temp., etc.) by incorporating a pyromellitic acid deriv. represented by a specified formula or its salt as an electric charge regulating agent having negative charge imparting property. CONSTITUTION:This electrophotographic toner contains a pyromellitic acid deriv. represented by formula I or II or its salt as an electric charge regulating agent having negative charge imparting property. In the formulae I and II, each of R1 and R2 is optionally substd. alkyl or optionally substd. phenyl. The electric charge regulating agent is characterized by the introduction of amido groups into the skeleton of pyromellitic acid and it is extremely excellent in negative charge imparting property, aging stability and environmental stability as compared with a known electric charge regulating agent having negative charge imparting property.

4. 发明专利

JPH07165685A PRODUCTION OF 3,9-DIAMINOBENZANTHRONE 失效
公开(公告)号：JPH07165685A
公开(公告)日：1995-06-27
申请号：JP30881793
申请日：1993-12-09
申请人： MITSUI TOATSU CHEMICALS
发明人： TAKUMA HIROSUKE , MATSUZAKI YORIAKI , OGISO AKIRA
IPC分类号： B01J23/72 , B01J27/02 , B01J27/122 , B01J31/04 , C07B61/00 , C07C221/00 , C07C225/22 , C09B57/00
摘要： PURPOSE:To obtain the subject compound useful as an intermediate for vat dyes, organic photoelectric materials, etc., in high yield and purity by reacting a dihalogenobenzanthrone with a specific sulfonamide compound in the presence of a copper catalyst and hydrolyzing the product in the presence of an acid catalyst. CONSTITUTION:A 3,9-dihalogenobenzanthrone is reacted with a sulfonamide compound of formula I (R is H, an alkyl, an alkoxy or a dialkylamino) in the presence of a metal copper catalyst or a copper salt catalyst, preferably at 170-200 deg.C to provide a compound of formula II, which is then hydrolyzed in the presence of an acid catalyst to provide the objective compound.

5. 发明专利

JPH0748352A PRODUCTION OF QUINOPHTHALONEDICARBOXYLIC ACID HAVING HIGH PURITY 失效
公开(公告)号：JPH0748352A
公开(公告)日：1995-02-21
申请号：JP19593993
申请日：1993-08-06
申请人： MITSUI TOATSU CHEMICALS
发明人： OGISO AKIRA , MISAWA TSUTAYOSHI , IMAI RIHOKO , ITO NAOTO , IRISATO YOSHIHIRO , TAKUMA HIROSUKE
IPC分类号： C07D215/20 , C09B25/00
摘要： PURPOSE:To obtain quinophthalonedicarboxylic acid having high purity and useful as an intermediate for pigment, etc., by hydrolyzing and neutralizing a specific quinophthalonedicarboxylic acid anhydride with an alkaline compound to obtain a solubilized product, removing insoluble impurities by filtration and adding an acid to precipitate the free acid. CONSTITUTION:This quinophthalonedicarboxylic acid having high purity and expressed by the formula III can be produced by adding an aqueous solution of an alkaline compound (e.g. sodium hydroxide) to a quinophthalonedicarboxylic acid anhydride expressed by the formula I (X is H, halogen or alkyl), heating the liquid mixture to 50 deg.C after confirming the adjustment of pH to 12.9, stirring for 2hr at 50-52 deg.C to effect the hydrolysis and neutralization of the compound and form a solubilized quinophthalone compound salt expressed by the formula II (Y and Z are cation), removing insoluble impurities from the product by filtration, adding an acid (e.g. sulfuric acid) to adjust the pH to 1.95, heating at 90 deg.C, keeping at the temperature for 2hr, adding water to precipitate crystals, collecting the crystal by filtration and drying the product.

6. 发明专利

JPH06145164A ULTRAVIOLET ABSORBER, BENZOPYRAN DERIVATIVE SUITABLE FOR THE SAME, THERMOPLASTIC RESIN COMPOSITION CONTAINING THE ULTRAVIOLET ABSORBER AND MOLDED ARTICLE 失效
公开(公告)号：JPH06145164A
公开(公告)日：1994-05-24
申请号：JP29504592
申请日：1992-11-04
申请人： MITSUI TOATSU CHEMICALS
发明人： OGISO AKIRA , MISAWA TSUTAYOSHI , IMAI RIHOKO , ITO NAOTO
IPC分类号： C07D311/12 , C07D311/16 , C07D335/06 , C08K5/15 , C08K5/1545 , C08L67/00 , C09K3/00
摘要： PURPOSE:To obtain a new 2H-1-benzopyran-2-one derivative useful as an ultraviolet absorber. CONSTITUTION:A compound of formula I (Y1 is O or S; X1 to X4 are H, halogen, nitro, OH or acetoxy; Q1 to Q5 are H, halogen, nitro or cyano excluding the case wherein Q1 to Q5 are all H atoms) and a compound of formula II (Q6 to Q15 are H, halogen, nitro or cyano). The compound of formula I is obtained by reacting a compound of formula III with thionyl chloride and reacting the reaction product with a compound of formula IV in a solvent.

7. 发明专利

JPH05320530A DICHLOMATIC AZO DYE AND POLARIZING FILM USING THE SAME 失效
公开(公告)号：JPH05320530A
公开(公告)日：1993-12-03
申请号：JP12705692
申请日：1992-05-20
申请人： MITSUI TOATSU CHEMICALS
发明人： MISAWA TSUTAYOSHI , OGISO AKIRA , ITO NAOTO , IMAI RIHOKO
IPC分类号： C09B35/035 , C09B35/34 , C09B56/06 , G02B1/08 , G02B5/30
摘要： PURPOSE:To obtain a new compound excellent in polarizing performance, dimensional stability to heat and wet heat resistance and useful for polarizing film, etc., for liquid crystal display. CONSTITUTION:A compound of formula I [R1 is H, methyl, hydroxyl or chloro; R2 and R3 are (substituted)1-3C alkyl; R2 and R3 are cyclized to form an alicyclic amino group], e.g. a compound of formula II. Furthermore, the compound of formula I is obtained by subjecting a compound of formula III to tetrazo forming reaction and then subjecting the resultant compound to coupling reaction with a compound of formula IV.

8. 发明专利

JPH0575751B2 失效
公开(公告)号：JPH0575751B2
公开(公告)日：1993-10-21
申请号：JP30640389
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： C07D307/77 , C07C237/48

9. 发明专利

JPH04338368A PRODUCTION OF ANTHRAQUINONE-2-CARBOXYLIC ACID 失效
公开(公告)号：JPH04338368A
公开(公告)日：1992-11-25
申请号：JP10789191
申请日：1991-05-14
申请人： MITSUI TOATSU CHEMICALS
发明人： MISAWA TSUTAYOSHI , AKAHORI HIROYUKI , OGISO AKIRA , ITO NAOTO
IPC分类号： B01J27/02 , C07B61/00 , C07C227/18 , C07C227/26 , C07C229/74
摘要： PURPOSE:To produce the subject compound useful for disperse dyes, near IR ray absorbers, colored liquid crystals, dichroic colorants, sublimational transfer recording colorants, etc., in high purity and yield in a process by reacting a specific easily available dinitrile in sulfuric acid. CONSTITUTION:An anthraquinone dinitrile of formula I (R1 to R4 are H, halogen, OH, amino) is reacted in 60-100% sulfuric acid at 50-200 deg.C for 1-20hrs to produce the objective compound of formula II. The sulfuric acid is employed in an amount of 3-50 weight times the compound of formula I. The compound of formula I includes 1,4-diaminoanthraquinone-2,3-dinitrile.

10. 发明专利

JPH08151530A ANTHRAQUINONE-BASED LONG WAVELENGTH-ABSORBABLE COLORING MATTER AND LASER BEAM RECORDING MEDIUM USING THE SAME 失效
公开(公告)号：JPH08151530A
公开(公告)日：1996-06-11
申请号：JP29508194
申请日：1994-11-29
申请人： MITSUI TOATSU CHEMICALS
发明人： OGISO AKIRA , KURODA SHIZUO , ITO NAOTO
IPC分类号： C09B1/32 , G11B7/244 , G11B7/24
摘要： PURPOSE: To provide the subject coloring matter expressed by specific formula, not only producible in an industrially advantageous way but also having highly excellent spectroscopic properties, excellent in laser writing property and resistance to light and heat, thus useful as a laser beam recording medium. CONSTITUTION: This coloring matter is expressed by formula I (X -X are each a halogen; R -R are each a lower alkyl or a lower alkoxyl). This coloring matter is pref. obtained by e.g. reaction between 1,4,5,8tetrachloroanthraquinone and at least four molar times of one or more kinds of aniline derivative of formula II, etc., in the presence of a solvent or by using the aniline derivative(s) itself as solvent and in the presence of potassium acetate, benzyl alcohol and copper sulfate under heating at 130-200 deg.C.

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