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    PRODUCTION OF CARBAMATE
    1.
    发明专利
    PRODUCTION OF CARBAMATE 失效

    公开(公告)号：JPH10287640A

    公开(公告)日：1998-10-27

    申请号：JP3163098

    申请日：1998-02-13

    Applicant: UBE INDUSTRIES

    Inventor： HARADA KATSUMASA ,  SUGISE RIYOUJI ,  KASHIWAGI KOICHI ,  MATSUURA TSUNAO

    IPC: B01J31/04 ,  C07B61/00 ,  C07C269/04 ,  C07C271/40

    Abstract: PROBLEM TO BE SOLVED: To obtain a carbamate in a high purity by reacting a diaryl carbonate with a monoamine and precipitating and separating the resultant carbamate by keeping the reaction system at a low temperature. SOLUTION: The objective carbamate such as phenyl N-phenylcarbamate can be produced by reacting a diaryl carbonate such as diphenyl carbonate with a monoamine of the formula R -NH2 (R is an aralkyl, an aryl, etc.), or R -NH-R (R and R are each an alkyl, an aralkyl, etc.), in the presence of a protonic acid (preferably a carboxylic acid) to produce a carbamate, keeping the reaction liquid at

    PRODUCTION OF DIARYL CARBONATE
    2.
    发明专利
    PRODUCTION OF DIARYL CARBONATE 失效

    公开(公告)号：JPH10101619A

    公开(公告)日：1998-04-21

    申请号：JP25695996

    申请日：1996-09-27

    Applicant: UBE INDUSTRIES

    Inventor： HARADA KATSUMASA ,  SUGISE RIYOUJI ,  KURATO TOSHIO ,  NIIDA SADAO ,  SUMITA TOSHIHIKO

    IPC: B01J27/10 ,  B01J23/40 ,  B01J23/74 ,  B01J27/128 ,  B01J31/02 ,  B01J31/04 ,  B01J31/24 ,  C07B61/00 ,  C07C68/00 ,  C07C69/96

    Abstract: PROBLEM TO BE SOLVED: To obtain a diaryl carbonate useful as a raw material for producing polycarbonate in good yield by using a specific catalyst in decarbonylation reaction of a diaryl oxalate. SOLUTION: A compound of VIII group metal is used as a catalyst in decarbonylation reaction. An organic acid salt, a phosphine complex or a halide of VIII group metal is preferably used as the compound of VIII group metal. An organic acid salt, a phosphine complex or a halide of iron group metal or phosphine complex of platinum group metal is especially preferably used as the compound of VIII group metal. Although the compound of VIII group metal can directly be used, the compound may be supported on a support such as silica, alumina or active carbon. The supported amount of the compound of II B group metal is normally about 0.1-50wt.%, preferably 0.5-30wt.% as the metal of VIII group metal, based on the support. The catalyst is used in an amount of normally bout 0.001-50mol% as VIII group metal based on diaryl oxide.

    PRODUCTION OF DIARYL CARBONATE
    3.
    发明专利
    PRODUCTION OF DIARYL CARBONATE 失效

    公开(公告)号：JPH0977722A

    公开(公告)日：1997-03-25

    申请号：JP3923996

    申请日：1996-02-27

    Applicant: UBE INDUSTRIES

    Inventor： HARADA KATSUMASA ,  SUGISE RIYOUJI ,  INBE YOUICHI ,  YAMAMOTO YOSHIFUMI

    IPC: B01J23/02 ,  B01J27/138 ,  B01J31/04 ,  C07B61/00 ,  C07C68/00 ,  C07C69/96

    Abstract: PROBLEM TO BE SOLVED: To produce a diaryl carbonate useful as a raw material for polycarbonates at an industrially suitable lower reactional temperature than that in a conventional method without using phosgene having strong toxicity. SOLUTION: The decarbonylating reaction of a diaryl oxalate such as diphenyl oxalate is carried out in the liquid phase in the presence of an alkaline earth metallic catalyst such as magnesium chloride to perform the decarbonylation while removing produced carbon monoxide to the outside of the system. Thereby, the diaryl carbonate such as the diphenyl carbonate is obtained. Besides, Mg(HCOO)2 .H2 O, Sr(HCOO)2 .2H2 O, etc., are further used as the catalyst.

    PRODUCTION OF TETRAHYDRO-4H-PYRANE-4-ONE
    4.
    发明专利
    PRODUCTION OF TETRAHYDRO-4H-PYRANE-4-ONE 失效

    公开(公告)号：JPH0912567A

    公开(公告)日：1997-01-14

    申请号：JP15790295

    申请日：1995-06-23

    Applicant: UBE INDUSTRIES

    Inventor： SUGISE RIYOUJI ,  KASHIWAGI KOICHI ,  MATSUURA TSUNAO

    IPC: C07D309/30

    Abstract: PURPOSE: To provide a method for producing the subject compound useful as a raw material for medicines without producing insolubles difficult to remove and further without polluting environments by treating a 1,5-dihalogenopentane-3- one in the presence of a phosphate salt, a carboxylic acid compound, and water, while repeatedly using water containing a phosphate compound. CONSTITUTION: In a method for producing tetrahydro-4H-pyrane-4-one by treating a 1,5-dihalogenopentane-3-one in the presence of (A) a phosphate salt such as an alkali metal phosphate salt, (B) a carboxylic acid compound such as an aromatic carboxylic acid, a heterogeneous ring carboxylic acid or their alkali metal salts, and (C) water, water containing a phosphate compound is repeatedly used. On the repeated use of the water containing the phoshate compound, the component B and an alkali(ne earth) metal halide is added in a necessary amount.

    PRODUCTION OF ACRYLONITRILE DIMER
    5.
    发明专利
    PRODUCTION OF ACRYLONITRILE DIMER 失效

    公开(公告)号：JPH07118220A

    公开(公告)日：1995-05-09

    申请号：JP20246394

    申请日：1994-08-26

    Applicant: UBE INDUSTRIES

    Inventor： SUGISE RIYOUJI ,  KASHIWAGI KOICHI ,  SHIRAI MASASHI ,  SHIMAKAWA TOSHIHIRO

    IPC: B01J31/22 ,  C07B61/00 ,  C07C253/30 ,  C07C255/04 ,  C07C255/09

    Abstract: PURPOSE:To obtain a normal dimer of acrylonitfile in high selectivity by performing dimerization of acrylonitrile without using hydrogen and with the extreme reduction of the by-production of propionitrile and the beta-cyanoethyl ester of a carboxylic acid. CONSTITUTION:A normal dimer of acrylonitrile, i.e., 1,4-dicyanobutene, 1,4- dicyanobutadiene or adiponitrile is obtained by the dimerization of acrylonitrile. This process of the dimerization of acrylonitrile is carried out using a ruthenium compound as a catalyst in the presence of a specific carboxylic acid containing an oxygen, sulfur or nitrogen atom.

    PRODUCTION OF CYCLODODECENE
    7.
    发明专利
    PRODUCTION OF CYCLODODECENE 失效

    公开(公告)号：JPH05331076A

    公开(公告)日：1993-12-14

    申请号：JP18024892

    申请日：1992-05-29

    Applicant: UBE INDUSTRIES

    Inventor： KASHIWAGI KOICHI ,  SUGISE RIYOUJI

    IPC: B01J31/16 ,  C07B61/00 ,  C07C5/05 ,  C07C13/275

    Abstract: PURPOSE:To obtain cyclododecene at high reaction rate while retaining high conversion selectivity, also with reduced catalyst. CONSTITUTION:Cyclododecene can be obtained by selective hydrogenation of 1,5,9-cyclododecatriene in the presence of a catalyst composed of (A) a ruthenium complex of the formula (X is Cl, Br or I; R is 1-8C alkyl, cycloalkyl or aryl), (B) a tertiary phosphorus compound of formula R 3P (R is the same as R), and (C) a base.

    ELECTROMAGNETIC-EFFECT MATERIAL
    8.
    发明专利
    ELECTROMAGNETIC-EFFECT MATERIAL 失效

    公开(公告)号：JPH0543227A

    公开(公告)日：1993-02-23

    申请号：JP17586491

    申请日：1991-06-21

    Applicant: UBE INDUSTRIES

    Inventor： FUJII HISATAKA ,  KASHIMA ATSUSHI ,  ODAN KYOJI ,  SUGISE RIYOUJI ,  OKAMOTO IWAO

    IPC: C01B13/14 ,  C01G1/00 ,  C04B35/00 ,  H01B1/08 ,  H01F1/00

    Abstract: PURPOSE:To produce a stable electromagnetic effect close to room temp. by sputtering a sintered mixture of specified oxides as the target to form an oxide ceramic thin film of specified composition and then heat-treating the thin film. CONSTITUTION:The sintered mixed powder of Bi2O3, CoFe2O4, LiNbO3, etc., is sputtered as the target on a substrate. The formed thin film shown by the formula is heat-treated at 400-900 deg.C in the air atmosphere to obtain an electromagnetic-effect material having >=1.0X10 emu cm/Vg electromagnetic coupling coefficient at 250-700K. In the formula, A and B are expressed by ABO3 and elements capable of forming a perovskite-structure compd. substrate exhibiting ferromagnetism or antiferromagnetism, C and D are expressed by CDO3 and elements capable of forming a perovskite-structure compd. substrate exhibiting ferroelectricity, antiferroelectricity or piezo effect, A=C except when B=D, x+y+z+W=1, 0.01

    MATERIAL WITH ELECTRIC-MAGNETIC EFFECT
    9.
    发明专利
    MATERIAL WITH ELECTRIC-MAGNETIC EFFECT 失效

    公开(公告)号：JPH0459621A

    公开(公告)日：1992-02-26

    申请号：JP16985490

    申请日：1990-06-29

    Applicant: UBE INDUSTRIES

    Inventor： FUJII HISATAKA ,  KASHIMA ATSUSHI ,  ODAN KYOJI ,  SUGISE RIYOUJI ,  OKAMOTO IWAO

    IPC: C01G49/00 ,  C04B35/00 ,  C04B35/495 ,  H01F1/00

    Abstract: PURPOSE:To obtain the title material with stabilized electricmagnetic effects over room temperature region by forming the material with a composition comprising Bi, Fe and other elements capable of forming compounds with perovskite-type structure selected from Na, K and Ca, etc., and from Nb, Ta and Ti, etc. CONSTITUTION:The objective material consisting of an oxide ceramics of formula xBi-yFe-zC-wD-alphaO (C and D are each expressed by generic formula CDO3, being selected from such elements as to be capable of forming compounds with perovskite-type structure; x+y+z+w=1; x is 0.01-0.95; y is 0.01-0.95; z is 0.01-0.95; w is 0.01-0.95; alpha is number of oxygen atoms satisfying the valences of the other elements). The present material has such a temperature region as to come to >=1X10 (emucm/Vg) in electric-magnetic coupling coefficient at 250-700K.

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