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公开(公告)号：DE2749638A1
公开(公告)日：1978-05-11
申请号：DE2749638
申请日：1977-11-05
Applicant: TORAY INDUSTRIES
Inventor： MORIMOTO HIROSHI , TOHDA YASOJI , TORIGATA HAJIME , NAKAOKA KENJI
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公开(公告)号：JPH01104035A
公开(公告)日：1989-04-21
申请号：JP26202387
申请日：1987-10-16
Applicant: TORAY INDUSTRIES
Inventor： FURUYA MASAAKI , NAKAOKA KENJI
IPC: C07C255/02 , C07C67/00 , C07C253/00 , C07C255/20
Abstract: PURPOSE:To obtain the title compound which is used as a starting substance for medicines, agrochemicals, or polymers, with economical advantage, by effecting the reaction between fatty acids and urea in a fused state using a specific catalyst of high activity, without formation of deposits on the wall surfaces of the reactor. CONSTITUTION:The reaction of a fatty acid such as an aliphatic monocarboxylic acid of 6-20 carbon atoms with urea is carried out in a fused state, using a combination of cobalt acetate and boric acid as a catalyst, preferably in a temperature range from 180-210 deg.C at the former stage of the reaction for several hours, then over 220 deg.C, preferably 230-280 deg.C at the latter stage to give the subject compound. The amount of urea used is 1-3mol., preferably 1.01-1.5mol. per mole of the carboxyl group in the fatty acid. The amount of cobalt acetate as the catalyst is 0.1-5wt.%, preferably 0.3-3wt.% and the boric acid is preferably 0.3-3wt.% based on the fatty acid.
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公开(公告)号：JPS6412256B2
公开(公告)日：1989-02-28
申请号：JP11474480
申请日：1980-08-22
Applicant: TORAY INDUSTRIES
Inventor： SUEMATSU MASAAKI , NAKAOKA KENJI
IPC: C07C51/265 , B01J23/34 , B01J23/74 , B01J27/06 , C07B61/00 , C07C63/307
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公开(公告)号：JPS63218651A
公开(公告)日：1988-09-12
申请号：JP5214787
申请日：1987-03-09
Applicant: TORAY INDUSTRIES
Inventor： WADA SEIKICHI , NAKAOKA KENJI
IPC: B01J31/04 , C07B61/00 , C07C67/00 , C07C233/65 , C07C253/00 , C07C255/50 , C07C255/54
Abstract: PURPOSE:To economically obtain the titled compound of good quality useful as medicines without using expensive chemicals, by thermally reacting benzoic acids with urea in a molten state using cobalt acetate and boric acid together as a catalyst. CONSTITUTION:Benzoic acids are thermally reacted with urea in a molten state to afford benzonitriles. In the process, cobalt acetate and boric acid are used together as a catalyst. The cobalt acetate is preferably added in an amount of about 0.1-5wt.%, particularly about 0.3-3wt.% expressed in terms of cobalt acetate tetrahydrate. the boric acid is preferably added in an amount of about 0.1-5wt.%, particularly about 0.3-3wt.% expressed in terms of orthoboric acid. The reaction is carried out at >=about 160 deg.C, particularly about 180-210 deg.C in the former stage thereof and the temperature is increased to >=220 deg.C, preferably 230-280 deg.C in the latter stage thereof.
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公开(公告)号：JPS63206768A
公开(公告)日：1988-08-26
申请号：JP3906187
申请日：1987-02-24
Applicant: FUJI XEROX CO LTD , TORAY INDUSTRIES
Inventor： SUZUKI CHIAKI , SHINOKI MASAHITO , AOKI TAKAYOSHI , NAKAOKA KENJI , MATSUKUMA YOSHIHISA
Abstract: PURPOSE:To eliminate fluctuation in the positive electrostatic charge quantity among toner particles by incorporating metal complex of 4-pyrones as an electric charge control agent into the titled compsn. CONSTITUTION:The metal complex of the 4-pyrones expressed by the formula is added as the charge control agent to the developer compsn. In the formula, R1, R2 denote (un)substd.alkyl. For example, Co complex of 2-methyl-3-hydroxy-4- pyrone is used for said complex. This complex may be added to any part of the compsn. if the complex can exhibit the positive electrostatic chargeability thereof. The complex is usable for both one-component and two-component developers. The compsn. which is high in the rising speed of electrostatic charge and has no fluctuation in the triboelectrostatic charge quantity among the toner particles and the stable positive electrostatic charge characteristic is obtd. if such complex is added to the compsn.
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Patent Agency Ranking
公开(公告)号：JPS6219559A
公开(公告)日：1987-01-28
申请号：JP15836085
申请日：1985-07-19
Applicant: TORAY INDUSTRIES
Inventor： FURUYA MASAAKI , FUJINO TOSHIHIRO , NAKAOKA KENJI
IPC: C07C271/22
Abstract: PURPOSE:To obtain a compound useful as a synthetic raw material for peptides useful as medicines in high quality and at a low cost, by reacting D- or L-N - benzyloxycarbonyllysine with tert-butylphenyl carbonate. CONSTITUTION:D- or L-N -Benzyloxycarbonyllysine is reacted with tert- butylphenyl carbonate in the presence of an alkali metal compound in a polar organic solvent, e.g. dimethyl sulfoxide, at 50-100 deg.C for 1-8hr to afford the aimed substance. The reactin is carried out by using tert-butylphenyl carbonate in a molar amount of 1.0-1.5 times based on the D- or L-N - benzyloxycarbonyllysine, the solvent in an amount of 1.5-7 times based on the D- or L-N -benzyloxycarbonyllysine and the alkali metal compound in an amount of 1.0-1.2 equivalents based on the D- or L-N -benzyloxycarbonyllysine.
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公开(公告)号：JPS60169435A
公开(公告)日：1985-09-02
申请号：JP2513984
申请日：1984-02-15
Applicant: TORAY INDUSTRIES
Inventor： SUEMATSU MASAAKI , NAKAOKA KENJI
Abstract: PURPOSE:To produce the titled substance, by dissolving acetyl chloride and AlCl3 catalyst at a specific ratio in a chlorinated hydrocarbon solvent, adding a chlorinated hydrocarbon solution of naphthalene to the above solution under cooling below a specific temperature, and treating the reaction liquid with dilute hydrochloric acid. CONSTITUTION:An acetylation reaction liquid is prepared beforehand by dissolving 1mol of acetyl chloride and 1.0-1.2mol of AlCl3 in a chlorinated hydrocarbon solvent (preferably ethylene dichloride), and cooled at
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公开(公告)号：JPS5879985A
公开(公告)日：1983-05-13
申请号：JP17806081
申请日：1981-11-06
Applicant: TORAY INDUSTRIES
Inventor： HASEGAWA SAKIE , TORIGATA HAJIME , NAKAOKA KENJI
IPC: C07D275/06
Abstract: PURPOSE:To obtain saccharin as a sweetening agent, medicine and intermediate for agricultural chemicals industrially advantageously, by oxidizing o-toluenesulfonamide with a gas containing molecular oxygen in place of dichromic acid in acetic acid solvent in the presence of a catalyst. CONSTITUTION:o-Toluenesulfonamide is catalytically oxidized with a gas containing molecular oxygen, e.g. air, in acetic acid solvent in an amount of preferably 2-10 times that of the o-toluenesulfonamide in the presence of a catalyst constituted of cobalt and/or manganese preferably in 0.04-2wt% total Co and Mn concentration based on the acetic acid solvent and a bromine compound, preferably cobalt bromide or manganese bromide, at 110-180 deg.C and 5-30atm. The reaction mixture is then cooled to crystallize the aimed saccharin. The mother liquor after the separation of the crystal can be repeatedly circulated through the reaction system.
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公开(公告)号：JPS5838732A
公开(公告)日：1983-03-07
申请号：JP13562281
申请日：1981-08-31
Applicant: TORAY INDUSTRIES
Inventor： NAKAOKA KENJI , SUEMATSU MASAAKI
Abstract: PURPOSE:A plasticizer composition, prepared by esterifying a polycarboxylic acid mixture obtained by chemically treating a reformed oil of naphtha or aromatic hydrocarbons with an aliphatic alcoholic ester, and having improved heat resistance and gasoline resistance. CONSTITUTION:A heat-resistant plasticizer composition obtained by oxidizing a catalytically reformed naphtha or 9C cut, consisting of trimethylbenzene essentially, and obtained by the disproportion, dealkylation and isomerization of toluene and xylene, etc. with air in a solvent containing a cobalt catalyst at 110-230 deg.C and 10-40 atm for 0.5-5hr, esterifying the resultant mixture with a 7-10C aliphatic primary monohydric alcohol, e.g. heptanol, in the presence of sulfuric acid, etc. under heating at 150-250 deg.C while distilling away water formed as a by-product, distilling away the excess aliphatic alcohol, and washig the resultant product with an aqueous solution of an alkali.
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公开(公告)号：JPS57193422A
公开(公告)日：1982-11-27
申请号：JP7724381
申请日：1981-05-21
Applicant: TORAY INDUSTRIES
Inventor： TORIGATA HAJIME , NAKAOKA KENJI
Abstract: PURPOSE:When an aromatic compound bearing methyl groups is catalytically oxidized into the titled compound, acetic acid which contains a specific amount of water is used as a solvent and the above aromatic compound is added to the distillate mix of water and acetic acid originating from the reaction mixture, then concentration is conducted again to separate the water formed as a by- product advantageously. CONSTITUTION:An aromatic compound having at least one of methyl groups is oxidized with a gas containing molecular oxygen in the presence of a heavy metal catalyst in a solvent of acetic acid containing 5-25wt% water. Then, the distillate mix that is mainly composed of water and acetic acid orginating from the reaction mixture is combined with the aromatic compound newly fed and they are subjected to concentration to distil off almost the same amount of water as that of the water formed in the oxidation and recover the remaining containing acetic acid. The remaining is circulated to the above oxidation stage, whereby the water formed in the oxidation is separated from the acetic acid solvent without precise rectification operations and the objective aromatic carboxylic acid is produced economically.
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