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公开(公告)号：JP2003267901A
公开(公告)日：2003-09-25
申请号：JP2002070198
申请日：2002-03-14
Applicant: KAO CORP
Inventor： SHIRASAWA TAKESHI , OKA KOJI , MORISHITA MITSUGI , OKUTSU TAKAHISA
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a glyceryl ether in high yield in which operation and reaction control is easy and loss of water used is slight. SOLUTION: The method for producing the glyceryl ether comprises carrying out a hydrolytic reaction while continuously feeding a glycidyl ether having a specific structure and water to a reactor. In the method, water is recovered by fractionation from a reaction mixture discharged from the reactor and recycled to the reactor. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002114727A
公开(公告)日：2002-04-16
申请号：JP2000303398
申请日：2000-10-03
Applicant: KAO CORP
Inventor： SHIRASAWA TAKESHI , MAEDA TOSHIJI , OKA KOJI , MORISHITA MITSUGI
IPC: C07C41/26 , C07B61/00 , C07C43/13 , C08G65/332
Abstract: PROBLEM TO BE SOLVED: To provide a method by which an ultrahigh reactional yield is obtained, an excessively large heat quantity of reaction produced during the reaction can readily be controlled and the reactional time can remarkably be shortened. SOLUTION: This method for producing a glyceryl ether represented by general formula (3) comprises carrying out a ring opening reaction of epoxy group while feeding a glycidyl ether represented by general formula (1) (wherein, R1 denotes a 1-32C hydrocarbon group; A1 denotes a 2-4C alkylene group; and p denotes a number of 0-200) into a mixture liquid containing a carboxylic acid, a base and water.
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公开(公告)号：JP2000093190A
公开(公告)日：2000-04-04
申请号：JP27450798
申请日：1998-09-29
Applicant: KAO CORP
Inventor： OKA KOJI , MAEDA TOSHIJI , MORISHITA MITSUGI
IPC: C12P17/04
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an ester simply efficiently in a high yield without enzyme deactivation. SOLUTION: In producing a carboxylic acid ester by reacting an alcohol with a carboxylic acid or its lower alkyl ester while circulation by using an apparatus equipped with a reactor and a circulation line for circulating a reaction solution, the reactor 2 for holding a catalyst containing an enzyme having esterification activity is maintained at 10-90 deg.C a reaction solution flowing out from the reactor 2 is heated to a temperature >=10 deg.C higher than the reaction temperature and formed water or a formed lower alcohol are evaporated and removed. The reaction solution is controlled approximately at the reaction temperature and is returned to the reactor 2.
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公开(公告)号：JPH06256276A
公开(公告)日：1994-09-13
申请号：JP4095793
申请日：1993-03-02
Applicant: KAO CORP
Inventor： OKA KOJI , AIMONO KIYOSHI
IPC: C07C231/02 , C07C233/47
Abstract: PURPOSE:To simply obtain an N-long-chain acylamino acid salt capable of manifesting excellent surface-active and antimicrobial actions at a low cost. CONSTITUTION:This method for producing an N-long-chain acylamino acid salt is characterized by reacting an amino acid salt with a fatty acid halide at 40-60 deg.C maximum reactional temperature in a tubular type reactor having the mixing function in a method for producing the N-long-chain acylamino acid salt having the first step for reacting an amino acid with an alkaline substance and providing the amino acid salt and the second step for reacting the resultant amino acid salt with the fatty acid halide.
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公开(公告)号：JPH04295491A
公开(公告)日：1992-10-20
申请号：JP5859791
申请日：1991-03-22
Applicant: KAO CORP
Inventor： OKA KOJI , AIMONO KIYOSHI , TSUYUTANI SHINJI , FUNENO TOMOHIRO
Abstract: PURPOSE:To obtain an alkylglycoside having good hue by reacting a sugar with a higher alcohol in the presence of an acid catalyst and aging the reaction product in a state of thin film, thereby quickly decreasing the unreacted sugar dissolved in the reaction product. CONSTITUTION:A sugar (preferably =90%. The thin-film reactor to be used in the aging reaction is e.g. a falling-film reactor and a drum evaporator.
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Patent Agency Ranking
公开(公告)号：JPH04295490A
公开(公告)日：1992-10-20
申请号：JP5859691
申请日：1991-03-22
Applicant: KAO CORP
Inventor： OKA KOJI , AIMONO KIYOSHI , TSUYUTANI SHINJI , HASHIBA IKIZOU
Abstract: PURPOSE:To provide a process for the production of an alkylglycoside having minimized thermal history, capable of efficiently evaporating and removing excess unreacted higher alcohol to obtain the higher alcohol having sufficiently high quality to be usable for the production of alkylglycoside and effective for suppressing the facility cost to the lowest possible level. CONSTITUTION:An alkylglycoside containing unreacted higher alcohol is produced as a reaction product by directly reacting a sugar with a higher alcohol or reacting a sugar with a lower alcohol and then with a higher alcohol. The unreacted higher alcohol is removed from the reaction product using a spontaneous liquid film evaporator which does not necessitate mechanical force for the formation of liquid film. An alkylglycoside having unreacted higher alcohol content of
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公开(公告)号：JPH04224599A
公开(公告)日：1992-08-13
申请号：JP40661090
申请日：1990-12-26
Applicant: KAO CORP
Inventor： AIMONO KIYOSHI , OKA KOJI , TSUYUTANI SHINJI , HASHIBA IKIZOU
Abstract: PURPOSE:To reduce the equipment cost by carrying out an aging reaction and partial removal of an unreacted higher alcohol at the same time and reducing load on a process for thorough distillation of the unreacted higher alcohol. CONSTITUTION:In production of an alkylglycoside using a sugar and a higher alcohol, the sugar is initially reacted with the higher alcohol in the presence of an acid catalyst. An aging reaction is then carried out using a thin membrane reactor, etc., and unreacted higher alcohol is simultaneously distilled off from the reaction mixture till 30-60wt.% concentration of the higher alcohol. The reaction is subsequently stopped by neutralizing the catalyst and the unreacted higher alcohol is then distilled off using a thin membrane evaporator, etc., to reduce the concentration of the higher alcohol to
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公开(公告)号：JPH10324691A
公开(公告)日：1998-12-08
申请号：JP13369497
申请日：1997-05-23
Applicant: KAO CORP
Inventor： OKA KOJI , TATE KENICHI
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an alkylglycoside by which the amount of coarse particles of a sugar included in the alkylglycoside is decreased without decreasing the reaction yield. SOLUTION: This method for producing an alkylglycoside comprises (a) the step of mixing a hydrated solid sugar with a higher alcohol, (b) the step of dehydrating the obtained mixture at a temperature of the mixture lower than the melting point of the hydrated solid sugar so that the water content of the solid sugar may become 0.5 wt.%, (c) the step of heating the mixture to 90-140 deg.C so that the proportion of particles having >=0.3 mm particle diameter at the finishing point of the step to be
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公开(公告)号：JPH07109287A
公开(公告)日：1995-04-25
申请号：JP25551893
申请日：1993-10-13
Applicant: KAO CORP
Inventor： OKA KOJI , AIMONO KIYOSHI
IPC: C07H15/04
Abstract: PURPOSE:To provide a production process for alkylglycoside which has a good color phase, extremely good smell and extremely reduced content of unreacting higher alcohol with high economical advantage. CONSTITUTION:At first, higher alcohols are removed from the alkylglycoside products containing unreacting higher alcohol formed by reaction of a saccharide and higher fatty alcohol until the content is lowered lower than 2.5wt.%. Then, the resultant crude glycoside is allowed to flow in a thin film, which is brought into contact with steam or an inert gas at 100 to 200 deg.C under 25 to 200mmHg pressure, as the superficial linear velocity of the steam or the inert gas is set less than 10m/sec, to give the alkylglycoside of less than 0.5wt.% higher alcohol content.
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公开(公告)号：JP2003267902A
公开(公告)日：2003-09-25
申请号：JP2002070214
申请日：2002-03-14
Applicant: KAO CORP
Inventor： SHIRASAWA TAKESHI , OKA KOJI , MORISHITA MITSUGI , OKUTSU TAKAHISA
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a glycryl ether in a high yield in which unnecessary contaminants such as ions is not contained in a reaction product and the reaction product is readily refined. SOLUTION: The method for producing the glyceryl ether comprises hydrolyzing a glycidyl ether having a specific structure at ≥0°C and COPYRIGHT: (C)2003,JPO
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