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    PROCESS FOR PREPARING WATER-SOLUBLE DISAZO COMPOUNDS
    11.
    发明专利
    PROCESS FOR PREPARING WATER-SOLUBLE DISAZO COMPOUNDS 未知

    公开(公告)号：IN157495B

    公开(公告)日：1986-04-12

    申请号：IN542CA1982

    申请日：1982-05-14

    Applicant: HOECHST AG

    Inventor： MEININGER FRITZ ,  HOYER ERNST ,  FASS RUDOLF

    IPC: C09B62/513 ,  C07C245/10 ,  C07C303/22 ,  C09B62/09 ,  C09B62/44 ,  D06P1/382 ,  D06P1/384 ,  D06P3/10 ,  D06P3/66 ,  C09B31/00

    Abstract: Water-soluble disazo compounds having fiber-reactive dyestuff properties of the general formula (1) (1) in which D1 and D2 are identical or different and each represents a phenyl radical or a naphthyl radical, both of which are substituted by a group of the formula moiety Y or formula moiety Z defined below and can additionally be substituted by one or two substituents from the group comprising sulfo, chlorine, bromine, lower alkyl and lower alkoxy, Z is a group of the formula (2a), (2b), (2c), (2d), (2e) or (2f) SO2CH2CH2X (2a) (2b) CH2SO2CH2CH2X (2c) SO2CHCH2 (2d) (2e) CH2SO2CHCH2 (2f) in which R denotes an alkyl group having 1 to 4 C atoms and X denotes a chlorine atom, the acetoxy group, the thiosulfate group, the phosphate group or the sulfato group; Y is a radical of the formula (3) in which R1 and R2 are identical to or different from one another and each denotes hydrogen or alkyl having 1 to 4 C atoms, and A is hydrogen or an optionally substituted alkyl group having 1 to 6 C atoms or a radical of the formula (4) -B-Z (4) in which B is the phenylene radical or a naphthylene radical, both of which can be substituted by one or two substituents chosen from the set comprising a sulfo group, a chlorine atom, one or two methyl or ethyl groups and one or two methoxy or ethoxy groups, and Z has the abovementioned meaning; n is the number 1 or 2 and m is the number zero or 1, and the sum (m+n) is equal to 2, and M denotes hydrogen or the equivalent of a metal, preferably sodium or potassium; the compounds of the general formula (1) must contain at least three radicals selected from those of formulae (2a) to (2f) defined above and from the group of formula (5) The compounds of the general formula (1) produce, for example on cellulose fiber materials, wool and synthetic polyamide fiber materials, fast and intensely colored, navy to black dyeings and prints.

    PROCESSING OF WATER SOLUBLE COMPLEXES OF COPPER AND DISAZOCOMPOUNDS
    13.
    发明专利
    PROCESSING OF WATER SOLUBLE COMPLEXES OF COPPER AND DISAZOCOMPOUNDS 未知

    公开(公告)号：CS233744B2

    公开(公告)日：1985-03-14

    申请号：CS43283

    申请日：1983-01-21

    Applicant: HOECHST AG

    Inventor： MEININGER FRITZ ,  HOYER ERNST ,  FASS RUDOLF

    IPC: C09B62/095 ,  C09B62/44 ,  C09B62/515 ,  D06P1/384 ,  D06P3/16 ,  D06P3/24 ,  D06P3/66 ,  C09B45/28

    Abstract: 1. Water-soluble copper-complex disazo compounds of the general formula (1) see diagramm : EP0084849,P29,F1 X is a chlorine atom or a group of the formula (2a), (2b) or (2c) see diagramm : EP0084849,P29,F2 in which R**1 denotes a straight-chain or branched alkyl group of 1 to 4 carbon atoms which can be sustituted, or an optionally susbtitut aryl radical, or represents a hydrogen atom, R**2 denotes a straight-chain or branched alkyl group of 1 to 4 carbon atoms which can be sustituted, or represents an optionally substituted aryl radical, R**3 is a hydrogen atom or denotes a straight-chain or branched alkyl group of 1 to 4 carbon atoms which can be susbtituted, and R**4 is a hydrogen atom or represents a cycloalkyl group which can be substituted by 1 to 3 methyl groups, or denotes a straight-chain or branched alkyl group of 1 to 4 carbon atoms which can be susbtituted, or is an optionally susbtituted aryl radical, and R**3 and R**4 can be identical or different, or R**3 and R**4, as alkylene radicals of 1 to 4 carbon atoms, together with the nitrogen atom and optionally an oxygen, sulfur or nitrogen atom as a further heteroatom, form a heterocyclic 6-membered radical ; Y is the vinyl group or a group of the general formula see diagramm : EP0084849,P30,F3 in which R denotes an inorganic or organic radical which can be eliminated under alkaline conditions ; Z is a chlorine atom ; M is a hydrogen atom or the equivalent of a metal.

    METHOD OF MAKING THE WATER SOLUBLE DIAZOCOMPOUNDS
    15.
    发明专利
    METHOD OF MAKING THE WATER SOLUBLE DIAZOCOMPOUNDS 未知

    公开(公告)号：CS221986B2

    公开(公告)日：1983-04-29

    申请号：CS658981

    申请日：1981-09-07

    Applicant: HOECHST AG

    Inventor： MEININGER FROTZ ,  HOYER ERNST ,  OTTEN JOACHIM ,  FASS RUDOLF

    IPC: C09B62/513 ,  C09B62/09 ,  C09B62/44 ,  C09B62/533 ,  D06P1/38 ,  D06P3/10 ,  D06P3/66 ,  C09B31/057

    Abstract: Water-soluble disazo dyestuffs of the formula which contain a 1-amino-8-naphthol-3,6- or -4,6-disulfonic acid moiety as a bivalent coupling component and which contain diazo components with fibre-reactive groups characterized by the inclusion of one or two chloro-triazinyl groups and one or two of the six groups defined by the substituent Z, namely, CH2SO2CH2CH2OSO3H; SO2CHCH2; +TR each of which are connected to the benzene moiety of the diazo component; the chloro-triazinyl group is further substituted by a substituted or unsubstituted phenylamino or substituted or unsubstituted naphthylamino group, a substitutent of which may be one of the six groups defined by the Z substituent; if there is only one chloro-triazinyl group in the compound, then the diazo component is also substituted by one of the Z substituents; these compounds are dyestuffs which exhibit a good fixation degree of the dyestuffs in fabrics.

    PROCESS FOR THE MANUFACTURE OF SULFURIC ACID SEMI- ESTER COMPOUNDS
    16.
    发明专利
    PROCESS FOR THE MANUFACTURE OF SULFURIC ACID SEMI- ESTER COMPOUNDS 未知

    公开(公告)号：CA1098901A

    公开(公告)日：1981-04-07

    申请号：CA283929

    申请日：1977-08-02

    Applicant: HOECHST AG

    Inventor： STEUERNAGEL HANS H ,  HOYER ERNST

    IPC: C07C67/00 ,  C07C313/00 ,  C07C315/04 ,  C07C317/36 ,  C07D263/58 ,  C09B62/503 ,  C09B62/507 ,  C09B62/51 ,  C07C147/10 ,  C09B45/14

    Abstract: of the disclosure: An improved and novel process has been found for the esterification of amino-benzoxazolone compounds containing a B-hydroxyethylsulfonyl group, by means of sulfuric acid or sulfur trioxide, with simultaneous or subsequent hydrolytic cleavage of the oxazolone ring, wherein the esterification and optional hydrolytic ring cleavage are performed in a machine which is operating with a kneading action and effect, using per mol of B-hydroxyethylsulfonyl compound 1 to 20 times the equivalent molar amount of concentrated sulfuric acid, oleum or sulfur trioxide. This novel process has the great advantage that great amounts of sulfuric acid are saved which would contaminate the waste-water, also in form of sodium sulfate formed after the required neutralization. Furthermore, the B-sul-fatoethylsulfonyl compounds formed as end-products in the esterification process are obtained in higher yields, in a higher esterification rate and in a higher purity. They may be obtained in form of a powder or plastic mass, which is well transportable and storable, and can advantageously be used, if ring cleavage had taken place, without intermediate isolation of the pure sulfato compound itself, directly for the preparation of azo dyestuffs which are poor of inert salts, possess a high tinctorial strength and purity.

    WATER-INSOLUBLE MONOAZO DYESTUFFS AND PROCESS FOR THEIR PREPARATION
    18.
    发明专利
    WATER-INSOLUBLE MONOAZO DYESTUFFS AND PROCESS FOR THEIR PREPARATION 未知

    公开(公告)号：CA859138A

    公开(公告)日：1970-12-22

    申请号：CA34081

    申请日：1968-11-01

    Applicant: HOECHST AG

    Inventor： LINDNER HELMUT ,  SCHMIDT HEINZ ,  HOYER ERNST

    IPC: C09B62/825

    Abstract: 1,244,006. Monoazo-dyes. FARBWERKE HOECHST A.G. 4 Nov., 1968 [4 Nov., 1967], No. 52209/68. Heading C4P. Novel water-insoluble dyes of formula (wherein X is H, Cl or Br, E 1 is C 1-4 alkyl and R 2 is C 1-4 carboxylic acyl) are prepared by a conventional coupling reaction These dyes may be applied to synthetic fibres such as cellulose triacetate, cellulose - 2¢ - acetate, polyamide, polyurethane, and polyesters such as polyethylene terephthalate. The dyes are said to colour polyester fibres navy blue or violet.

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