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公开(公告)号：DE69101833D1
公开(公告)日：1994-06-01
申请号：DE69101833
申请日：1991-10-04
Applicant: MITSUI TOATSU CHEMICALS , PIONEER ELECTRONIC CORP
Inventor： TAKUMA KEISUKE , KATO KIMITOSHI , KURODA SHIZUO , MATSUI FUMIO
Abstract: Disclosed is a resin composition for ultraviolet luminescent screen comprising one or more of luminescent compound represented by the formula (I): wherein X is , wherein R1, R2, R3, and R4 are individually a hydrogen atom, halogen atom, alkyl, alkoxy, amino, alkylamino, dialkylamino, anyl or aralkyl, and Y is perfluoroalkyl, and A is a cation represented by the formula (II): wherein R5, R6, R7, and R8 are individually a hydrogen atom, alkyl or aralkyl and may be combined with each other to form a ring, or a pyridium cation which may have a substituent, or a phosphonium cation.
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公开(公告)号：CA1321790C
公开(公告)日：1993-08-31
申请号：CA586468
申请日：1988-12-20
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA KEISUKE , AIGA HIROSHI , OHYAMA TSUKASA , KURODA SHIZUO
Abstract: High-purity 1,4,5,8-tetraanilidoanthraquinones which are substituted at the p-position of at least one of four anilido benzene rings by a halogen atom are good near infrared rays absorbing filters and are prepared from high purity 1,4,5,8-tetrachloroanthraquinone by reaction with a correspondingly substituted aniline or mixture of anilines in the presence of a salt of an aliphatic carboxylic acid, a benzyl alcohol derivative and copper ions as reaction catalyst.
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公开(公告)号：DE69101833T2
公开(公告)日：1994-10-20
申请号：DE69101833
申请日：1991-10-04
Applicant: MITSUI TOATSU CHEMICALS , PIONEER ELECTRONIC CORP
Inventor： TAKUMA KEISUKE , KATO KIMITOSHI , KURODA SHIZUO , MATSUI FUMIO
Abstract: Disclosed is a resin composition for ultraviolet luminescent screen comprising one or more of luminescent compound represented by the formula (I): wherein X is , wherein R1, R2, R3, and R4 are individually a hydrogen atom, halogen atom, alkyl, alkoxy, amino, alkylamino, dialkylamino, anyl or aralkyl, and Y is perfluoroalkyl, and A is a cation represented by the formula (II): wherein R5, R6, R7, and R8 are individually a hydrogen atom, alkyl or aralkyl and may be combined with each other to form a ring, or a pyridium cation which may have a substituent, or a phosphonium cation.
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公开(公告)号：DE3888334T2
公开(公告)日：1994-09-22
申请号：DE3888334
申请日：1988-12-23
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OHYAMATA TSUKASA , TAKUMA KEISUKE , KURODA SHIZUO , AIGA HIROSHI
Abstract: High-purity 1,4,5,8-tetraanilidoanthraquinones which are substituted at the p-position of at least one of four anilido benzene rings by a halogen atom are good near infrared rays absorbing filters and are prepared from high purity 1,4,5,8-tetrachloroanthraquinone by reaction with a correspondingly substituted aniline or mixture of anilines in the presence of a salt of an aliphatic carboxylic acid, a benzyl alcohol derivative and copper ions as reaction catalyst.
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公开(公告)号：DE3888334D1
公开(公告)日：1994-04-14
申请号：DE3888334
申请日：1988-12-23
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OHYAMATA TSUKASA , TAKUMA KEISUKE , KURODA SHIZUO , AIGA HIROSHI
Abstract: High-purity 1,4,5,8-tetraanilidoanthraquinones which are substituted at the p-position of at least one of four anilido benzene rings by a halogen atom are good near infrared rays absorbing filters and are prepared from high purity 1,4,5,8-tetrachloroanthraquinone by reaction with a correspondingly substituted aniline or mixture of anilines in the presence of a salt of an aliphatic carboxylic acid, a benzyl alcohol derivative and copper ions as reaction catalyst.
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Patent Agency Ranking
公开(公告)号：JPH07325431A
公开(公告)日：1995-12-12
申请号：JP12014694
申请日：1994-06-01
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , OGISO AKIRA , KURODA SHIZUO
IPC: G03G9/097 , C07C233/65
Abstract: 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.
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公开(公告)号：JPH07252423A
公开(公告)日：1995-10-03
申请号：JP4554094
申请日：1994-03-16
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , KURODA SHIZUO
Abstract: PURPOSE:To obtain the subject new compound, having low dyeability for resin films, excellent in image brightness, durability, compatibility, etc., with a liquid crystal and useful as a dichroic blue coloring matter for a polymer-dispersed type liquid crystal display element, etc. CONSTITUTION:This compound is expressed by formula I [R is H, a halogen, methyl or methoxy; (m) is 1-10; (n) is 0-6], e.g. a compound expressed by formula II. The compound expressed by formula I is obtained by reacting 1,5- dihydroxy-4,8-dinitroanthraquinone with a compound expressed by formula III in the presence of boric acid in sulfuric acid, further treating the resultant compound with a reducing agent such as sodium (hydro)sulfide or glucose, providing a crude product expressed by formula I and purifying the prepared crude product according to the recrystallization, column chromatography, etc.
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公开(公告)号：JPH0269591A
公开(公告)日：1990-03-08
申请号：JP22184588
申请日：1988-09-05
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , KURODA SHIZUO , MURAYAMA KAZUHIKO , KATO KIMITOSHI
Abstract: PURPOSE:To obtain the subject dye with high dichroic ratio excellent in durability and solubility in liquid crystals and consisting of a novel red-based dichroic dye having an anthraquinone skeleton. CONSTITUTION:Objective dyes represented by formula I [R1 is (alkyl or alkoxy substituted)phenyl, (alkyl or alkoxy substituted)cyclohexyl; R2 is H, alkyl, alkoxy, alkoxyalkoxy or alkylcarboxyloxy]. For synthesis of the above- mentioned dye, 1,5-dihydroxy-4-nitro-2,6-substituted methylanthraquinone compound of formula II is reacted with a thiophenol in the presence of a base such as potassium carbonate or potassium hydroxide in a polar organic solvent such as dimethyl sulfoxide or isopropanol.
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公开(公告)号：JPS63175083A
公开(公告)日：1988-07-19
申请号：JP616687
申请日：1987-01-16
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , KURODA SHIZUO , AIGA HIROSHI , SAITO SUGURU , MATSUO HIROSHI
IPC: C09D11/00
Abstract: PURPOSE:To obtain the titled novel composition colorless under visible rays, but luminescent red on irradiation of ultraviolet light, to be utilized for prints, writing utensils, etc., by incorporating base ink with a specific europium complex. CONSTITUTION:The objective composition can be obtained by incorporating (A) base ink with (B) pref. 0.01-1wt.% of a compound of formula (R1 and R2 are each H, halogen, alkyl, alkoxy, amino, dialkylamino, alkylamino, aryl or aralkyl) [e.g., tris(benzoyltrifluoracetone)europium complex, tris(p-methyl benzoyltrifluoracetone)europium complex dihydrate].
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公开(公告)号：JPS6055057B2
公开(公告)日：1985-12-03
申请号：JP8978079
申请日：1979-07-17
Applicant: MITSUI TOATSU CHEMICALS
Inventor： NAKAMURA KATSUJI , KURODA SHIZUO , YOSHIURA KOICHI , ISHIBASHI MASAAKI , TANAKA TAKASUMI , WATANABE TETSUO
IPC: C09B1/48 , C07C225/34 , C07C233/33 , C07C233/43
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