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    PROCESS FOR PREPARING BENZOXAZOLONES-(2)AND BENZOTHIAZOLONES-(2)
    11.
    发明专利
    PROCESS FOR PREPARING BENZOXAZOLONES-(2)AND BENZOTHIAZOLONES-(2) 未知

    公开(公告)号：CA986524A

    公开(公告)日：1976-03-30

    申请号：CA145515

    申请日：1972-06-23

    Applicant: HOECHST AG

    Inventor： HEISE H ,  MEES B

    IPC: C07D263/58 ,  C07D277/68

    Abstract: 1371688 Preparation of benzoxalones-(2) and benzothiazolones-(2) FARBWERKE HOECHST AG 22 June 1972 [24 June 1971] 29273/72 Heading C2C Benzoxazolanes - (2) and benzothiazolones- (2) of general formula where R represents hydrogen, halogen, C 1 -C 3 alkyl or C 1 -C 3 alkyloxy and X is O or S are prepared by condensing urea in solution, preferably aqueous, in the presence of an acid, with an aminophenol or an aminothiophenol of formula the pH of the reaction mixture not exceeding 7. The acid catalyst may be sulphuric, hydrochloric, phosphoric or hydrobromic acid and preferably 1À5 to 3 moles of urea are used per mol of aminophenol or aminothiophenol.

    12.
    发明专利
    未知

    公开(公告)号：BR7404637D0

    公开(公告)日：1975-09-30

    申请号：BR463774

    申请日：1974-06-05

    Applicant: HOECHST AG

    Inventor： HUNGER K ,  MEES B

    IPC: C08K5/00 ,  C08K5/22 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L67/00 ,  C08L77/00 ,  C09B35/03 ,  C09B35/34 ,  C09D11/00 ,  C09D11/02 ,  C09B33/12

    Abstract: Novel valuable, water-insoluble disazo pigments of the general formula 1 WHEREIN R is hydrogen, methyl, methoxy or halogen, preferably chlorine or bromine, and X also represents hydrogen or halogen, preferably chlorine. The disazo compounds are obtained by bisdiazotizing a 2,7-diaminodiphenylenesulfone and coupling it on an acetoacetylbenzimidazolone. These pigments are suitable for preparing printing inks, color lakes and dispersion paints, for dyeing rubber, plastics and natural or synthetic resins. Furthermore, they are suitable for the printing of pigments on substrates, especially textile fibre materials or other flat articles such as paper.

    19.
    发明专利
    未知

    公开(公告)号：DK134701C

    公开(公告)日：1977-06-06

    申请号：DK300074

    申请日：1974-06-04

    Applicant: HOECHST AG

    Inventor： HUNGER K ,  MEES B

    IPC: C08K5/22 ,  C08K5/00 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L67/00 ,  C08L77/00 ,  C09B35/03 ,  C09B35/34 ,  C09D11/00 ,  C09D11/02

    Abstract: Novel valuable, water-insoluble disazo pigments of the general formula 1 WHEREIN R is hydrogen, methyl, methoxy or halogen, preferably chlorine or bromine, and X also represents hydrogen or halogen, preferably chlorine. The disazo compounds are obtained by bisdiazotizing a 2,7-diaminodiphenylenesulfone and coupling it on an acetoacetylbenzimidazolone. These pigments are suitable for preparing printing inks, color lakes and dispersion paints, for dyeing rubber, plastics and natural or synthetic resins. Furthermore, they are suitable for the printing of pigments on substrates, especially textile fibre materials or other flat articles such as paper.

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