中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

57 records (took 0.042 seconds)

    COPPER COMPLEX DISAZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS
    12.
    发明专利
    COPPER COMPLEX DISAZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS 未知

    公开(公告)号：DE3362573D1

    公开(公告)日：1986-04-24

    申请号：DE3362573

    申请日：1983-01-24

    Applicant: HOECHST AG

    Inventor： MEININGER FRITZ DR ,  HOYER ERNST DR ,  FASS RUDOLF

    IPC: C09B62/095 ,  C09B62/44 ,  C09B62/515 ,  D06P1/382 ,  D06P1/384 ,  D06P3/10 ,  D06P3/24 ,  D06P3/66

    Abstract: 1. Water-soluble copper-complex disazo compounds of the general formula (1) see diagramm : EP0085378,P48,F1 in which : m is the number zero or 1 (where in the case of m = 0 this group is hydrogen) ; the free azo group can be bonded in 6- or 7-position to the centrally located naphthalene nucleus ; if m is equal to 1, this sulfo group is bonded in the 5-position when the azo group is in the 6-position, and is bonded in the 6-position when the azo group is in the 7-position ; R**1 is a hydrogen atom or straight-chain or branched alkyl group having 1 to 4 carbon atoms which can be substituted ; R**2 is a hydrogen atom or a cycloalkyl group which can be substituted by 1 to 3 methyl groups, or a straight chain or branched alkyl group having 1 to 4 carbon atoms which can be substituted, or an optionally substitued aryl radical ; R**1 and R**2 can be identical to or different from each other ; or R**1 and R**2 are alkylene groups having 1 to 4 carbon atoms and form together with the nitrogen atom and optionally an oxygen, sulfur or nitrogen atom as a further heteroatom a heterocyclic 6-membered radical ; Y is the vinyl group or a group of the general formula (2) -CH2 -CH2 -X (2) in which X denotes an inorganic or organic radical which can be eliminated under alkaline conditions ; M is a hydrogen atom or the equivalent of a metal.

    13.
    发明专利
    未知

    公开(公告)号：DE3230102A1

    公开(公告)日：1984-02-16

    申请号：DE3230102

    申请日：1982-08-13

    Applicant: HOECHST AG

    Inventor： HOYER ERNST DR

    IPC: C09B45/04 ,  C09B62/095 ,  C09B62/44 ,  C09B62/515 ,  C09B67/22 ,  C09B45/14 ,  C09B62/012 ,  D06P1/06 ,  D06P1/38 ,  D06P3/66

    Abstract: 1. A process for preparing mixtures of 1:2-cobalt complex and 1:2-chromium complex azo dyestuffs of the general formula (1) see diagramm : EP0103165,P10,F1 in which Me is a cobalt atom or a chromium atom, R represents a hydrogen atom, the methyl group or the methoxy group, M denotes a hydrogen atom or an alkali metal atom or the equivalent of an alkaline earth metal atom, and the group of the formula -SO2 -CH2 -CH2 -OSO3 M is bonded to the benzene nucleus in meta- or para-position relative to the NH-group, in a molar mixing ratio of 1:5 to 5:1, characterized by that, in a one-vessel process and without intermediate isolation of the process intermediates, first of all to diazotize 4-nitro-2-aminophenol and couple with 1-amino-8-hydroxy-naphthalene-3,6-disulfonic acid to give an azo compound of the general formula (3) see diagramm : EP0103165,P10,F2 in which M has the abovementioned meaning, to convert this azo compound without intermediate isolation by reaction with an equivalent amount of cobalt- and chromium donating agents for which the molar ratio between cobalt and chromium is within the range from 5:1 to 1:5, into a mixture of 1:2-cobalt complex and 1:2-chromium complex azo compounds of the general formula (4) see diagramm : EP0103165,P11,F3 in which Me and M have the abovementioned meanings, and then to react this mixture of metal complex azo compounds of the general formula (4) without intermediate isolation with a compound of the general formula (5) see diagramm : EP0103165,P11,F4 in which M and R have the abovementioned meanings and the beta-sulfatoethylsulfonyl group is bonded to the benzene nucleus in meta- or para-position relative to the NH-group, to yield the mixture, in accordance with the invention, of 1:2-chromium complex azo dyestuffs of the general formula (1).

    WATER-SOLUBLE AZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS
    16.
    发明专利
    WATER-SOLUBLE AZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS 未知

    公开(公告)号：DE3160079D1

    公开(公告)日：1983-03-24

    申请号：DE3160079

    申请日：1981-07-02

    Applicant: HOECHST AG

    Inventor： HOYER ERNST DR ,  KOHLHAAS FOLKER DR ,  MEININGER FRITZ DR

    IPC: C09B33/10 ,  C09B62/513 ,  D06P1/384 ,  D06P3/10 ,  D06P3/32 ,  D06P3/66

    Abstract: Disazo compounds corresponding to the general formula (1) (1) as well as their metal salts, in which D1 denotes the benzene or naphthalene nucleus, which can be further substituted by one or two substituents from the group of fluorine, chlorine, bromine, carboxy, lower alkyl, lower alkoxy and nitro and/or one, two or three sulfo groups, D2 is the benzene or naphthalene nucleus, which is substituted by the substituent X defined below and, in addition to the group -SO2-Y, can be further substituted by one or two substituents from the group of carboxy, lower alkyl and lower alkoxy and/or by one substituent from the group of fluorine, chlorine, bromine and nitro and/or one, two or three sulfo groups, X denotes a fluorine, chlorine or bromine atom, which is necessarily bonded to D2 in ortho-position to the azo group, Y denotes the vinyl, beta -sulfatoethyl, beta -chloroethyl, beta -thiosulfatoethyl or a beta -acyloxyethyl group with the acyl radical of a lower alkanecarboxylic acid or of a benzoic acid or of a benzenesulfonic acid, and a and b each represent the number zero or 1, the sum of (a+b) being equal to 1 or 2. These compounds (1) are very suitable as fiber-reactive dyes for dyeing, for example natural or regenerated cellulose fiber, wool or synthetic polyamide fibers. They give on these materials intense dyeings and prints of good fastness properties, and are distinguished, in particular, by a good stability to copper ions, when used in printing processes.

    18.
    发明专利
    未知

    公开(公告)号：DE3120187A1

    公开(公告)日：1982-12-09

    申请号：DE3120187

    申请日：1981-05-21

    Applicant: HOECHST AG

    Inventor： MEININGER FRITZ DR ,  HOYER ERNST DR ,  FASS RUDOLF

    IPC: C09B62/513 ,  C07C245/10 ,  C07C303/22 ,  C09B62/09 ,  C09B62/44 ,  D06P1/382 ,  D06P1/384 ,  D06P3/10 ,  D06P3/66 ,  C09B62/01 ,  C09B62/453 ,  C09B33/10 ,  C08K5/23 ,  D01F1/06 ,  D21H1/46 ,  D21H3/80

    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.

Patent Agency Ranking