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    12.
    发明专利
    未知

    公开(公告)号：BR7705098A

    公开(公告)日：1978-04-04

    申请号：BR7705098

    申请日：1977-08-03

    Applicant: HOECHST AG

    Inventor： WAGNER D ,  HOYER E ,  STEUERNAGEL H

    IPC: C09B43/24 ,  C09B62/503 ,  C09B62/72

    Abstract: Improved process for the sulfatation of the hydroxy group of a beta -hydroxy-ethylsulfonyl group present in compounds selected from the dyestuff class which comprises carrying out the reaction in a machine operating with a kneading action and effect and with the use of only 1 to 5 times the equimolar amount of a concentrated sulfuric acid, of oleum or sulfur dioxide itself. The beta -sulfatoethylsulfonyl group containing dyestuffs, thus prepared have a high purity and are obtained in a high yield and esterification rate. Above all, the novel process is distinguished by a highly reduced salt and acid content of the waste water.

    15.
    发明专利
    未知

    公开(公告)号：BR7205053D0

    公开(公告)日：1973-06-28

    申请号：BR505372

    申请日：1972-07-27

    Applicant: HOECHST AG

    Inventor： HOYER E ,  SCHLADETSCH H

    IPC: C09B20060101 ,  C09B29/00 ,  C09B29/08 ,  C09B29/085 ,  D06P1/00 ,  D06P1/18 ,  D06P3/00

    Abstract: The water-insoluble azo-dyestuff of the formula SAID DYESTUFF BEING SUITABLE FOR THE DYEING OF FIBROUS MATERIALS CONSISTING OF POLYESTERS, THE CLEAR, HEAVY AND REDDISH ORANGE DYEINGS OBTAINED ON SAID MATERIALS BEING DISTINGUISHED BY VERY GOOD FASTNESS PROPERTIES TO IRONING, TO WET PROCESSING, TO WASTE GAS AND TO LIGHT.

    A PROCESS FOR THE MANUFACTURING OF NEW WATERSOLUBLE DYESTUFFS
    18.
    发明专利
    A PROCESS FOR THE MANUFACTURING OF NEW WATERSOLUBLE DYESTUFFS 未知

    公开(公告)号：IN150948B

    公开(公告)日：1983-01-29

    申请号：IN138CA1979

    申请日：1979-02-14

    Applicant: HOECHST AG

    Inventor： NOLL W ,  MEININGER F ,  HOYER E

    IPC: C09B62/513 ,  D06P3/66 ,  C09B31/30

    Abstract: Water-soluble dyestuffs are described which in the acid form possess the formula +TR wherein D is a benzene or naphthalene nucleus, R1 is linked to D in ortho-position to the azo group and means hydrogen, halogen, lower alkoxy, lower alkyl, carboxy or sulfo, R2 is hydrogen, halogen, lower alkyl, lower alkoxy or sulfo and X is the vinyl group or a sulfato-, chloro- or thiosulfatoethyl group, A is a bridging member preferably selected from the diphenylene, diphenylsulfone and diphenylamine series, Z and Z1 each represent a hydroxy or amino group with the proviso that each Z and each Z1 have the same meaning. These novel dyestuffs are prepared by diazotization and coupling of the corresponding diazo and coupling components in usual manner known in the art. The novel dyestuffs possess a very valuable fiber-reactivity and are suitable for dyeing natural and regenerated cellulose or natural, regenerated or synthetic polyamide fiber materials. They can easily be applied and fixed by application methods usual and known in the art, and yield on these fiber materials dyeings and prints which possess good fastnesses, especially fastnesses to light, to washing, to perspiration and to cross-dyeing. Their fixation degree on the fiber material and correspondingly their tinctorial strength are outstanding.

    20.
    发明专利
    未知

    公开(公告)号：BR8007244A

    公开(公告)日：1981-05-19

    申请号：BR8007244

    申请日：1980-11-07

    Applicant: HOECHST AG

    Inventor： SCHWAIGER G ,  HOYER E

    IPC: C09B62/503 ,  D06P3/02 ,  D06P3/66 ,  C09B50/04 ,  C09B45/18

    Abstract: New copper-complex formazan compounds of the general formula: in which A is a phenylene or naphthylene radical which can be substituted by halogen, nitro, lower alkyl, lower alkoxy, lower alkylsulfonyl, phenylsulfonyl and optionally alkylated sulfonamide groups and can also be substituted by the radical Z, defined below, B is a straight-chain or branched-chain alkyl group or alkenyl group, which can be substituted by an optionally substituted phenyl radical, or is a phenyl or naphthyl radical, which can be substituted by halogen, lower alkyl, lower alkoxy and lower carbalkoxy, or is the radical or a furan, thiophene, pyrrole, imidazole, indole, pyrazole, pyridine, pyrimidine, quinoline or benzimidazole, it being possible for B likewise to be substituted by the group Z, defined below, Z denotes a group which confers solubility in water, such as the carboxyl group or sulfo group, one to three of which are bonded to A and/or B, Cu is a copper atom, X denotes an oxygen atom or a carbonyloxy group and is bonded to A in the ortho-position relative to the nitrogen atom, Y represents the vinyl or beta -thiosulfatoethyl group and M denotes a hydrogen atom or the equivalent of a metal. The new copper-complex formazan compounds can be prepared in a manner which is in itself customary, for example by reacting an aromatic hydrazone compound of the general formula: in which A, B, X and Z have the abovementioned meaning, with the diazonium compound of an aromatic amine of the general formula: in which M and Y have the abovementioned meaning, and with an agent which donates copper. The new copper-complex formazan compounds have valuable dyestuff properties and are particularly suitable as fiber-reactive dye-stuffs for dyeing, for example, cellulose fiber materials, wool and synthetic polyamide fibers, on which they give strong reddish-tinged to greenish-tinged blue or clear blue dyeings with good fastness to light and wet processing.

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