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    21.
    发明专利
    未知

    公开(公告)号：FR2519631A1

    公开(公告)日：1983-07-18

    申请号：FR8300403

    申请日：1983-01-12

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITU ,  KAWASHIMA SABURO ,  YAMAGUCHI AKIHIRO

    IPC: C07C309/40 ,  C07C97/10

    Abstract: 3,3'- or 3,4'-diamino benzophenone is prepared by catalytically reducing and dehalogenating, in the presence of a reduction catalyst and a dehydrohalogenation agent, a benzophenone compound or benzophenone compounds of the general formula in which X is a halogen atom at position 2 or 4 of the benzene ring and Y is hydrogen or a halogen atom and in which the nitro group is at position 3' or 4' of the benzene ring if Y is hydrogen, while Y is at position 4' and the nitro group is at position 3' of the benzene ring if Y is a halogen atom.

    22.
    发明专利
    未知

    公开(公告)号：DE2902989A1

    公开(公告)日：1979-08-02

    申请号：DE2902989

    申请日：1979-01-26

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： ASANO MAKOTO ,  KAWASHIMA SABURO ,  SUGIMOTO KENICHI ,  KOBAYASHI TADASHI

    IPC: B41M5/155 ,  C08G8/08 ,  C08G8/24 ,  C08K5/13 ,  C08L61/06 ,  C08L61/08 ,  B41M5/12

    Abstract: Disclosed is a color-developing composition for pressure-sensitive recording sheet material of the self-contained type comprising (A) 100 parts by weight of a copolymer obtained by reacting a p-alkylphenol having an alkyl moiety of from 1 to 12 carbon atoms and phenol with formaldehyde and (B) from 1 to 20 parts by weight of a hindered phenolic compound selected from phenols having an alkyl, alkylene or hydroxyl substituent radical in at least the 2- or 6-position, or both, of the benzene ring and derivatives thereof, the copolymer and the hindered phenolic compound being homogeneously dissolved in mutual solution. The hindered phenolic compound is either added to the starting materials for the preparation of the copolymer or, at the end of the copolymerization reaction, added to the resulting copolymer and dissolved homogeneously in mutual solution.

    23.
    发明专利
    未知

    公开(公告)号：DE69117905D1

    公开(公告)日：1996-04-18

    申请号：DE69117905

    申请日：1991-12-20

    Applicant: MITSUI TOATSU CHEMICALS ,  YAMAMOTO CHEMICALS INC

    Inventor： OGUCHI TAKAHISA ,  SUGIMOTO KENICHI ,  AIHARA SHIN ,  ITOH HISATO ,  MATSUMOTO MANSUKE ,  MASAOKA TOSHIHIRO ,  NAKAMURA MASAKAZU

    IPC: C09B47/067 ,  C09B47/073 ,  G11B7/248 ,  G11B7/24

    Abstract: There is here disclosed a method for preparing an alkoxyphthalocyanine represented by the formula (1): wherein each of Rs is independently a secondary alkyl group having 3 to 20 carbon atoms, Met is a divalent metal atom or an oxy metal, and the substitution positions of -ORs are the 1- or 4-position, the 5- or 8-position, the 9- or 12 position, and the 13- or 16-position, which comprises the steps of heating a mixture of 3-alkoxyphthalonitrile and an organic base in an alcohol to 90-120 DEG C, adding a metal derivative at the same temperature, and then carrying out reaction, or alternatively the step of reacting a mixture of a 1,3-diimino-4-alkoxyisoindoline and a metal derivative in the presence or absence of an organic base in an aliphatic alcohol having 6 or more carbon atoms. In addition, the ratio of isomers of the alkoxyphthalocyanine can be controlled by regulating the addition time of the organic base.

    24.
    发明专利
    未知

    公开(公告)号：DE3650142D1

    公开(公告)日：1995-01-05

    申请号：DE3650142

    申请日：1986-02-20

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： YOSHIKAWA YUKIHIRO ,  YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  YAMAGUCHI AKIHIRO

    IPC: C07C205/38 ,  C07C217/90 ,  C07C215/28 ,  C07C321/24 ,  C07C317/00

    Abstract: Bis(3-nitrophenoxy) derivatives of aromatic or bridged aromatic hydrocarbons are derived from m-dinitrobenzene and dihydroxy derivatives of said hydrocarbons by a condensation reaction in dipolar aprotic solvents in the presence of bases. The bis(3-nitrophenoxy) derivatives obtained are successively reduced to afford bis-(3-aminophenoxy) derivatives. This is a new method for reacting the dihydroxy-derivatives with m-dinitrobenzene, and hence can prepare novel bis(3-aminophenoxy) derivatives such as 4,4 min -bis(3-aminophenoxy)biphenyl, 1-[4-(3-aminophenoxy)phenyl]-1,3,3-trimethyl-6-(3-aminophenoxy)indan, 6,6 min -bis(3-aminophenoxy)-3,3,3 min ,3 min -tetramethyl-1,1 min spirobiindan, and methyl substituted 2,2 min -bis[4-(3-aminophenoxy)phenyl]propane.

    28.
    发明专利
    未知

    公开(公告)号：FR2565970B1

    公开(公告)日：1989-02-03

    申请号：FR8509141

    申请日：1985-06-17

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  YAMAZAKI MIDORI ,  YAMAGUCHI AKIHIRO

    IPC: C07C209/36 ,  C07C87/50 ,  C07C85/11

    Abstract: A process for preparing an aminobenzylamine comprises catalytically reducing a nitrobenzylamine of the general formula (I): wherein the nitro-group is located at the o-position, m-position, or p-position. As preferred embodiments of this process, there is disclosed a method for catalytically reducing in the presence of acids, and a method of using mineral acid salts of a nitrobenzylamine mixture obtained by nitrating benzylamine.

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