公开(公告)号：JPS60262858A

公开(公告)日：1985-12-26

申请号：JP11938284

申请日：1984-06-11

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMADA YASUYUKI ,  NAKATSUKA MASAKATSU ,  NISHIZAWA ISAO ,  AIGA HIROSHI ,  KATOU KIMITOSHI

IPC: C09K19/60 ,  C09B31/00 ,  C09B31/14

Abstract: NEW MATERIAL:Compounds of formula I, wherein X is H, halogen, OH, nitro, cyano, lower dialkylamino, aryl, aralkyl, etc.; Y1-Y9 are each H, methyl, methoxy, OH, halogen, cyano; Y1 and Y2, Y4 and Y5 or Y7 and Y8 may form a benzene ring when combined together; Z1, Z2 are each alkyl, alkoxy or may form a benzene ring when combined together. USE:Dichroic azo dyes contg. a benzotriazole ring for use in liquid crystals. PREPARATION:An amine compd. of formula II is diazotized and coupled with a compd. of formula III. The resulting compd. is cyclized by a conventional method to form a triazole ring, thus obtaining the compd. of formula I.

公开(公告)号：JPS53135961A

公开(公告)日：1978-11-28

申请号：JP4841377

申请日：1977-04-28

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATOU KIMITOSHI ,  IWAMURA AKIO ,  AIGA HIROSHI ,  HASEYAMA RIYUUJI ,  TANAKA TADAAKI

IPC: C09B1/22 ,  C07C225/34

Abstract: PURPOSE:To prepare the title compound useful as an intermediate of anthraquinone dye, economically and in high purity, without using a large amount of sulfuric acid or fuming sulfuric acid, by the bromination of 1-aminoanthraquinone fine crystals in an aqueous medium.

公开(公告)号：JPS60179462A

公开(公告)日：1985-09-13

申请号：JP3440584

申请日：1984-02-27

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATOU KIMITOSHI ,  AIGA HIROSHI ,  MIKOTA TAMIO ,  SAKAI TSUNEHIRO

IPC: C09B17/00 ,  C09B5/48 ,  C09B5/58 ,  C09B9/02 ,  C09B67/28

Abstract: PURPOSE:To obtain a vat dye of good quality in a high yield, by chlorinating a specified condensation product obtd. by a reaction in the presence of 1,3-dimethyl-2-imidazolidinone. CONSTITUTION:0.1-10pts.wt. alkaline condensing agent such as KOH and optionally a wetting agent such as an alkali metal naphthalenesulfonate are added to one pt. 1-aminoanthraquinone in the form of a powder or a slurry while introducing an oxidizing agent such as air. A condensation reaction is conducted in the presence of 0.1-10pts.wt. 1,3-dimethyl-2-imidazolidinone at 80-150 deg.C to obtain a condensation reaction product. The product is slurried in water and reduced with hydrotalcite in the presence of an alkali metal hydroxide. The resulting crystal is recovered by filtration and slurried in water. The resulting dianthraquinone-N,N-dihydroamine or the above product is chlorinated in sulfuric acid. The product is recovered by filtration and the filter cake is completely dissolved in 98% sulfuric acid and reduced with Al powder to obtain a vat dye of the formula, wherein n is 1, 2.

公开(公告)号：JPS6013843A

公开(公告)日：1985-01-24

申请号：JP12027583

申请日：1983-07-04

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATOU KIMITOSHI ,  AIGA HIROSHI ,  SAKAI TSUNEHIRO

IPC: C08K5/00 ,  C08F283/01 ,  C08F299/00 ,  C08F299/04 ,  C08K5/14 ,  C08K5/34 ,  C08K5/3437 ,  C08K5/46 ,  C08L67/00 ,  C08L67/06 ,  C09B29/039 ,  C09B29/44

Abstract: PURPOSE:To provide the titled composition capable of ascertaining the uniform mixing of a curing agent by the state of color development, fading its color by the decomposition of a peroxide after curing, and preventing the partial undercure of the molded product, by adding a specific dye to an organic peroxide used as the curing agent. CONSTITUTION:An organic peroxide used as the curing agent for an unsaturated polyester resin is incorporated with an oil-soluble dye of formula I (X is -OCH3, -SO2CH3, or -Cl; R1 is H, -CH3, -C2H5, or -C2H4OH; R2 is -C2H4OH, -C2H4OCOCH3, or -C2H4CN; R3 is H, -NHCOCH3, etc.), formula II. (R4 is -C2H5 or -CH3; R5 is -C2H4OH, -C2H4OCOCH3, etc.), or formula III. The amount of the dye is

公开(公告)号：JPS5683423A

公开(公告)日：1981-07-08

申请号：JP15924979

申请日：1979-12-10

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATOU KIMITOSHI ,  YOSHIURA KOUICHI

IPC: C07C19/041 ,  C07C17/00 ,  C07C17/38 ,  C07C17/383 ,  C07C19/01 ,  C07C67/00 ,  C07C201/00 ,  C07C201/16 ,  C07C205/47

Abstract: PURPOSE:To recover a halogenated aliphatic hydrocarbon solvent, easily, in high recovery, and sufficiently high purity for recycling, preventing frothing of the solvent, from a reaction liquid obtained by the nitration of an anthraquinone compound in the presence of said solvent, by introducing the liquid into a water layer of a specific temperature, thereby immediately distilling out the solvent as the azeotropic mixture. CONSTITUTION:An anthraquinone compound is nitrated in the presence of a halogenated aliphatic hydrocarbon solvent (e.g. methylene chloride, 1,2-dichloroethane, etc.), and the solvent is recovered from the reaction products by introducing the reaction liquid into a water layer (pure water or dilute sulfuric acid) maintained at a temperature above the azeotropic point of the solvent and water, and cooling the distilled azeotropic mixture. The process has no adverse effect to the qualities and yield of the produced nitroanthraquinone compound.

公开(公告)号：JPS53135962A

公开(公告)日：1978-11-28

申请号：JP4841477

申请日：1977-04-28

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATOU KIMITOSHI ,  IWAMURA AKIO ,  AIGA HIROSHI ,  HASEYAMA RIYUUJI ,  TANAKA TADAAKI ,  YOSHIMI TAKEYOSHI

IPC: C07C225/34 ,  C07C225/36

Abstract: PURPOSE:To prepare highly pure title compound useful as an intermediate of anthraquinone dye, economically in a simple process, without using a large amount of sulfuric acid, by brominating 1-aminoanthraquinone followed by hydrolyzing the product without isolating the reaction product.

公开(公告)号：JPS601169A

公开(公告)日：1985-01-07

申请号：JP10678983

申请日：1983-06-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATOU KIMITOSHI ,  AIGA HIROSHI ,  MIKOTA TAMIO ,  SAKAI TSUNEHIRO

IPC: C07D241/38 ,  C07D239/70

Abstract: PURPOSE:To produce the titled substance useful as a vat dye, in high yield and quality, by condensing 1-aminoanthraquinone in the presence of 1,3-dimethyl-2- imidazolidinone using an oxidizing agent and an alkaline condensation agent. CONSTITUTION:1-Aminoanthraquinone is condensed in the presence of an oxidizing agent (e.g. air, oxygen, etc.) using 0.2-2.5 times weight, based on the raw material, of an alkaline condensation agent (preferably KOH) to obtain the titled substance. The reaction is carried out in the presence of 1.0-3.0 times weight, based on the raw material, of 1,3-dimethyl-2-imidazolidine, at 80-150 deg.C. Since 1,3-dimethyl-2-imidazolidinone is stable under alkaline condition, it can be recovered by distillation under atmospheric or reduced pressure or by solvent extraction.

公开(公告)号：JPS57115461A

公开(公告)日：1982-07-17

申请号：JP30681

申请日：1981-01-07

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ITOU NAOTO ,  SHIMAZOE KIKUO ,  KATOU KIMITOSHI ,  AIGA HIROSHI

IPC: C09B67/22

Abstract: PURPOSE:The titled dye composition dyeing or printing polyester type fibers into black, having improved fastness to washing, light, sublimation, etc., especially low pollution of white area after reductive washing, obtained by blending specific three or more dyes in a specified composition ratio. CONSTITUTION:(A) 20-70wt% dye (e.g., a compound shown by the formula II) shown by the formula I(X1 and X2 are halogen; R is lower alkyl, lower alkoxy) is blended with (B) 10-40wt% dye (e.g., compound shown by the formula IV, etc.) shown by the formula III(X is halogen; Y is lower alkoxy; R1 and R2 are R), (C) 10-40wt% (e.g., a compound shown by the formula VI, etc.) shown by the formula V(Y is H, lower alkyl, or lower alkoxy), and, if necessary, (D) 0-10wt% red type dye (e.g., a compound shown by the formula VII, etc.), to give the desired dye composition.

公开(公告)号：JPS60184564A

公开(公告)日：1985-09-20

申请号：JP4043884

申请日：1984-03-05

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATOU KIMITOSHI ,  AIGA HIROSHI ,  IGATA AKITOSHI

IPC: C09K19/60 ,  C09B31/06 ,  G02F1/13

Abstract: NEW MATERIAL:Dis-azo compounds of formula I wherein R is (cyclo, alkoxy) alkyl, alkenyl, (alkoxy)phenyl, alkyl or arylcarbonyl, -CHCOOR1, -COOR2 (wherein R1, R2 are each alkyl, alkoxyalkyl, alkoxyphenyl); Y1-Y9 are each H, methyl, methoxy, cyano, halogen; X is H, nitro, cyano, halogen, alkylsulfonyl, (substd.) alkyl, (substd.) aryl. USE:Dichroic dye for guest-host type of liquid crystal compsn. PREPARATION:A compd. of formula II is diazotized and then coupled with a compd. of formula III. The resulting monoazo compd. of formula IV is coupled with a compd. of formula V. The resulting dis-azo compd. of formula VI is etherified and esterified.

公开(公告)号：JPS57193426A

公开(公告)日：1982-11-27

申请号：JP7858381

申请日：1981-05-26

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATOU KIMITOSHI ,  SAKAI TSUNEHIRO ,  KURODA SHIZUO ,  SHIMAZOE KIKUO ,  YOSHIURA KOUICHI

IPC: C07B61/00 ,  B01J31/00 ,  B01J31/02 ,  C07C67/00 ,  C07C201/00 ,  C07C201/10 ,  C07C205/47

Abstract: PURPOSE:When anthraquinone is nitrated in the presence of a halogenated aliphatic hydrocarbon to produce the titled compound, a small amount of anthrone is made to coexist to make the particle size of the product uniform, thus facilitating the purification and separation and increasing the yield. CONSTITUTION:Anthraquinone is nitrated with a mixed acid in the presence of a halogenated aliphatic hydrocarbon such as methylene chloride, using high-concentration sulfuric acid, preferably of 80-95%, in an amount of 1.5-7.0, preferably 2.0-4.0 times the weight of the anthraquinone, and anthrone in an amount of 0.002-0.05, preferably 0.004-0.02pt. per 1pt. of the antraquinone to given 1-nitroanthraquinone. The reaction temperature is 0-60, preferably 10- 45 deg.C. An example of the halogenated aliphatic hydrocarbon is methylene chloride or 1,2-dichloroethane.