3.
    发明专利
    未知

    公开(公告)号:DE2144908A1

    公开(公告)日:1973-03-15

    申请号:DE2144908

    申请日:1971-09-08

    Applicant: HOECHST AG

    Abstract: 1399627 5 - (Aminobenzonesulphonylamino)- benzimidazolones HOECHST AG 8 Sept 1972 [8 Sept 1971] 41863/72 Heading C2C Novel 5 - (aminobenzenesulphonylamino)- benzimidazolones having the general formula wherein the amino group is meta or para to the sulphonamido group; X 1 and X 2 are hydrogen or halogen atoms or (C 1 -C 4 ) alkyl or alkoxy groups, and R is a hydrogen or halogen atom or a methyl, ethyl, methoxy or ethoxy group; are prepared by reacting a benzenesulphochloride of the general formula with a 5-aminobenzimidazolone of the general formula wherein A is a nitro or acetylamino group, and the acetyl group in the product thus obtained is hydrolysed, or the nitro group in the product is reduced to the amino group.

    9.
    发明专利
    未知

    公开(公告)号:DE2653284A1

    公开(公告)日:1978-06-01

    申请号:DE2653284

    申请日:1976-11-24

    Applicant: HOECHST AG

    Abstract: Process for dyeing evenly synthetic fiber materials and mixtures thereof with natural fibers, with water-insoluble disperse dyestuffs according to the exhaust method, which comprises adding water-soluble or dispersible linear polyesters that have been obtained by polycondensation of dicarboxylic acids with diols, including sulfo-groups-containing chain links, with an average molecular weight of 800 to 5,000, combined with surface-active oxethylation products, at a blend ratio of 1:0.25 to 1:1.5, as dispersing system with levelling action to the aqueous dyeliquors, besides said dyestuffs and pH-controlling substances.

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