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公开(公告)号：JPH06199736A
公开(公告)日：1994-07-19
申请号：JP36133692
申请日：1992-12-28
Applicant: AGENCY IND SCIENCE TECHN , CHIKYU KANKYO SANGYO GIJUTSU
Inventor： MATSUDA AKIO , MASUDA TAKASHI , TAKAHASHI IKUO , KAWAMOTO KENJI
Abstract: PURPOSE:To provide a method for producing a 4c dicarboxylic acid di lower alkyl ester from lower alkyl ester, of acrylic acid, carbon monoxide and a lower saturated aliphatic monohydric alcohol in the presence of a cobalt carbonyl catalyst, giving the objective compound in a high yield even under industrially advantageous low pressure. CONSTITUTION:The method for producing a 4C dicarboxylic acid di lower alkyl ester by reacting a lower alkyl ester of acrylic acid with carbon monoxide and a lower saturated aliphatic monohydric alcohol in the presence of cobalt carbonyl and pyridine base at 100-120 deg.C comprises employing carbon monoxide containing 0.25-2vol.% of hydrogen gas to perform the reaction under a pressure of 25-50atm.
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公开(公告)号：JPH06122744A
公开(公告)日：1994-05-06
申请号：JP8452592
申请日：1992-03-05
Applicant: AGENCY IND SCIENCE TECHN , CHIKYU KANKYO SANGYO GIJUTSU , TOPPAN PRINTING CO LTD , DAICEL CHEM
Inventor： MASUDA TAKASHI , MATSUDA AKIO , SANO YOJI , TAKAHASHI IKUO , KAWAMOTO KENJI
Abstract: PURPOSE:To provide a production process whereby the copolymerization of carbon monoxide with formaldehyde can be smoothly performed without causing the deactivation of the catalyst, the problem of corrosion of the reactor by the catalyst can be improved, the reactional product can easily be separated from the catalyst, the repeated use of the catalyst is possible, and the catalyst can be disposed of without serious problems. CONSTITUTION:This production process comprises reacting carbon monoxide with formaldehyde or a formaldehyde polymer which forms formaldehyde on depolymerization in the presence of a catalyst comprising a cation-exchange resin prepared by sulfonating a copolymer of a styrenic monomer with a divinylbenzene monomer.
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公开(公告)号：JPH05112624A
公开(公告)日：1993-05-07
申请号：JP29791891
申请日：1991-10-18
Applicant: AGENCY IND SCIENCE TECHN , CHIKIYUU KANKYO SANGYO GIJUTSU , TOPPAN PRINTING CO LTD , DAICEL CHEM
Inventor： MASUDA TAKASHI , MATSUDA AKIO , SANO YOJI , TAKAHASHI IKUO , KAWAMOTO KENJI
IPC: C08G2/18
Abstract: PURPOSE:To efficiently obtain the subject copolymer free from corrosion, capable of readily carrying out separation and recovery of a catalyst and useful for coating, etc., by copolymerizing carbon monoxide with formaldehyde under specific conditions. CONSTITUTION:In a method for producing a carbon monoxide-formaldehyde copolymer by reacting carbon monoxide with formaldehyde, a solid catalyst such as silica-alumina is used as the catalyst and an organic solvent (e.g. hexafluoroisopropanol) capable of exhibiting a liquid-like state at ordinary temperature to 100 deg.C C and dissolving the copolymer or mixture thereof is used as the reaction solvent and a copolymer produced by the reaction is dissolved in the reaction solvent to provide the objective copolymer.
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公开(公告)号：JPH0426652A
公开(公告)日：1992-01-29
申请号：JP13052090
申请日：1990-05-21
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MATSUDA AKIO , MASUDA TAKASHI , MURATA KAZUHISA
Abstract: PURPOSE:To obtain the title compound in high yield by reacting butadiene with CO and an alcohol in the presence of cobalt-carbonyl and pyridine at two stages of different temperatures and adding paraffin to the resultant product and separating a catalyst complex. CONSTITUTION:Butadiene is reacted with CO and alcohol (preferably ethanol) in the presence of cobalt carbonyl and pyridine, preferably 3,5-dimethylpyridine at 120 deg.C to a temperature lower than 160 deg.C to afford 3-pentenoic acid ester as the intermediate. Then reaction temperature is raised directly without separating the intermediate and a reaction is carried out at 160-200 deg.C and paraffin is added to the resultant product to separate most of a pyridine complex which is a catalyst from a product layer and the separated pyridine complex is dissolved in acetone and recycled for next reaction. According to the above- mentioned method, troublesomeness of processes containing separation, recovery and regeneration of catalyst which was a defect of the conventional technique is remarkably reduced.
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公开(公告)号：JPS63179839A
公开(公告)日：1988-07-23
申请号：JP1181887
申请日：1987-01-21
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MURATA KAZUHISA , MATSUDA AKIO , MASUDA TAKASHI
IPC: B01J31/20 , B01J31/00 , C07B61/00 , C07C27/00 , C07C29/141 , C07C29/38 , C07C31/20 , C07C31/22 , C07C31/24 , C07C67/00
Abstract: PURPOSE:To readily obtain a polyol in good yield, by reacting formaldehyde in the presence of H2, etc., using a specific catalyst. CONSTITUTION:Formaldehyde such as paraformaldehyde, etc., is reacted in the presence of H2 or mixed gas of H2 and CO, as necessary previously reacted under N2 for prescribed time and then reacted after substituting the mixed gas by H2, in an inert organic solvent such as dioxane, using an imidazolium salt expressed by formula I (R1-R4 are aliphatic or aromatic group or H; X is halogen) such as 3-ether-1-methylbenzimidazolium bromide, formula II or formula III (n is 1-10) and a ruthenium compound such as dodecacarbonyltriruthenium, as necessary an organic amine such as triethanolamine, as a catalyst to provide 2-4C polyol such as ethylene glycol, glycerin, erythritol. The above-mentioned reaction is carried out at ordinary temperature -300 deg.C in H2 pressure of 1-500 atmosphere when H2 exists.
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Patent Agency Ranking
公开(公告)号：JPH09124780A
公开(公告)日：1997-05-13
申请号：JP30507095
申请日：1995-10-30
Applicant: AGENCY IND SCIENCE TECHN , CHIKYU KANKYO SANGYO GIJUTSU
Inventor： TAKAHASHI IKUO , KAWAMOTO KENJI , MATSUDA AKIO , MASUDA TAKASHI
IPC: C08G63/16 , C08L101/16
Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a biodegradable high-mol.-wt. aliphatic polyester polymer moldable into films or fibers. SOLUTION: This polyester polymer is produced by reacting an aliph. tetraester compd. represented by the formula: R1 -OCO-CH2 -COOR2 -OCO-CH2 - COO-R1 (wherein R1 is an aliph. monovalent group; and R2 is an aliph. divalent group) with a dihydric alcohol represented by the formula: HO-R3 -OH (wherein R3 is an aliph. divalent group), contains ester parts represented by the formula: OCC2 H4 COOR4 O (wherein R2 is a branched alkylene group derived from a dihydric alcohol having a sec- or tert-hydroxyl group) and ester parts represented by the formula: OCC2 H4 COOR3 O (wherein R3 is a linear alkylene group derived from a dihydric alcohol having a prism-hydroxyl group), and has a number average mol.wt. (in terms of polystyrene) of 5,000-80,000.
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公开(公告)号：JPH0912691A
公开(公告)日：1997-01-14
申请号：JP23896693
申请日：1993-08-31
Applicant: AGENCY IND SCIENCE TECHN , CHIKYU KANKYO SANGYO GIJUTSU , DAICEL CHEM , TOPPAN PRINTING CO LTD
Inventor： TAKAHASHI IKUO , KAWAMOTO KENJI , MASUDA TAKASHI , MATSUDA AKIO
IPC: C08G63/16 , C08G63/181 , C08L101/16
Abstract: PURPOSE: To provide a method for the production of a high-molecular weight aliphatic polyester having practical physical properties and biodegradability. CONSTITUTION: In the method for the production of an aliphatic polyester having a number - average molecular weight of 20,000 or more by condensation polymerization reaction of an aliphatic dibasic carboxylic acid di-lower alkyl ester with an aliphatic dihydric alcohol in the presence of a catalyst, the content of free carboxylic acid compounds in the aliphatic dibasic carboxylic acid di- lower alkyl ester is kept at 0.1wt.% or below and the molar ratio of the raw materials to be charged is kept within the range that satisfies the expression: 1.0
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公开(公告)号：JPH05198421A
公开(公告)日：1993-08-06
申请号：JP2891592
申请日：1992-01-20
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MURATA KAZUHISA , USHIJIMA YOJI , MATSUDA AKIO , MASUDA TAKASHI
Abstract: PURPOSE:To obtain a stable organic magnetic material having high saturation magnetization by a method wherein the hydrogen-containing carbide of organic monomer compound is subjected to a plasma treatment. CONSTITUTION:Organic compound is heated in an inert gas atmosphere or in a vacuum to obtain amorphous carbide containing 1-50 hydrogen atoms for 100 carbon atoms. Then the amorphous carbide is subjected to a plasma treatment. Aliphatic hydrogen carbide or alicyclic hydrogen carbide expressed by a formula I or a formula II can be used as the organic compound. The examples of the compounds expressed by the formula I are pentane, octane, dodecane, dodecanol, etc., and the examples of the compounds expressed by the formula II are cyclohexane, methyl cyclohexane, cyclohexanol, chlorocyclohexane, etc. With this constitution, a stable organic magnetic material having high saturation magnetization can be easily manufactured.
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公开(公告)号：JPH03241704A
公开(公告)日：1991-10-28
申请号：JP22215890
申请日：1990-08-23
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MURATA KAZUHISA , MATSUDA AKIO , MASUDA TAKASHI
IPC: G11B5/706 , C08G8/00 , C08G8/04 , C08G8/10 , C08G8/20 , C08G10/02 , C08G61/12 , C09D5/23 , C09D7/12 , H01F1/00 , H01F1/42
Abstract: PURPOSE:To provide an organic ferromagnetic substance easy to manufacture and excellent in safety by utilizing the fact that a hydrogen containing carbide of a specific polymer exhibits ferromagnetism. CONSTITUTION:A title organic ferromagnetic substance comprises a carbide of at least one kind polymer in graphitization selected among an aromatic polymer having a structure where aromatic compounds are coupled with each other through alkylene chains each of which may be substituted by an alkyl group, an aryl group, or an alkyl group, an aryl group, or an alalkyl group, further comprising triaryl methane copolymer, acetyllene compound copolymer, and alpha,beta-unsaturated compound. Said carbide involves 1-10 hydrogen atoms per 100 carbon atoms. Hereby, an organic ferromagnetic substance is yielded which is easy to manufacture, high in the yield of production, and excellent in safety.
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公开(公告)号：JPS63218252A
公开(公告)日：1988-09-12
申请号：JP4890787
申请日：1987-03-05
Applicant: AGENCY IND SCIENCE TECHN , LION CORP
Inventor： MATSUDA AKIO , MASUDA TAKASHI , MURATA KAZUHISA , NAKAYAMA JUNICHI
Abstract: PURPOSE:To produce aldehyde with good selectivity under mild conditions and also to facilitate both separation and recovery of a catalyst after reaction and circulating usage, by using the catalyst for oxo reaction consisting of Rh and chitin. CONSTITUTION:A catalyst for oxo reaction is constituted of Rh and chitin. In the case of performing oxo reaction by using this catalyst, aldehyde is produced with good selectivity under the mild conditions and also separation and recovery of the catalyst after reaction and circulating usage are facilitated. Further since chitin is produced as biomass at mass production and is an inexpensive raw material, the above-mentioned catalyst is preferable as the catalyst used for industrial oxo reaction.
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