中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

57 records (took 0.022 seconds)

    WATER SOLUBLE DISAZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS
    24.
    发明专利
    WATER SOLUBLE DISAZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS 未知

    公开(公告)号：DE3265589D1

    公开(公告)日：1985-09-26

    申请号：DE3265589

    申请日：1982-05-17

    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

    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.

    METHOD OF PREPARING DISAZO COMPOUNDS
    26.
    发明专利
    METHOD OF PREPARING DISAZO COMPOUNDS 未知

    公开(公告)号：CS226739B2

    公开(公告)日：1984-04-16

    申请号：CS245982

    申请日：1982-04-06

    Applicant: HOECHST AG

    Inventor： HOYER ERNST DR ,  FASS RUDOLF

    IPC: C09B41/00 ,  C07C303/22 ,  C09B62/513 ,  C09B31/043

    Abstract: 1. A process for the preparation of disazo compounds of the general formula (1) see diagramm : EP0063276,P12,F4 in which R**1 denotes a hydrogen atom, a chlorine or bromine atom or a sulfo group, R**2 is a hydrogen atom or a chlorine or bromine atom, R**3 represents a hydrogen atom, an alkyl group having 1 to 4 C-atoms or an alkoxy group having 1 to 4 C-atoms and R**4 denotes an alkoxy group having 1 to 4 C-atoms and Z**1 and Z**2 are each bonded in the benzene nucleus in the meta- or para-position relative to the azo group and each represents a hydrogen atom, the beta-thiosulfatoethylsulfonyl group, the vinylsulfonyl group or the beta-sulfatoethylsulfonyl group, and Z**1 and Z**2 can be identical to or different from one another, but with the proviso that they do not both represent a hydrogen atom at the same time, and M represents a hydrogen atom or the equivalent of a metal, and the formula moieties R**1 , R**2 , R**3 , R**4 and M are identical to or different from one another and also identical to or different from Z**1 and Z**2 , characterized by that a mixture of two diazotized aromatic amines of the general formulae (2) and (3) see diagramm : EP0063276,P12,F5 see diagramm : EP0063276,P12,F6 in which R**1 , R**2 , R**3 , R**4 , Z**1 and Z**2 have the abovementioned meanings, are reacted with a coupling component of the general formula (4) see diagramm : EP0063276,P12,F7 in which M has the abovementioned meaning, first in a strongly acid range and then in a weakly acid to weakly alkaline range.

    METHOD OF PREPARING DISAZO-COMPOUNDS
    27.
    发明专利
    METHOD OF PREPARING DISAZO-COMPOUNDS 未知

    公开(公告)号：CS226432B2

    公开(公告)日：1984-03-19

    申请号：CS515781

    申请日：1981-07-03

    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 ,  C09B35/06

    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.

    30.
    发明专利
    未知

    公开(公告)号：DE3113885A1

    公开(公告)日：1982-10-21

    申请号：DE3113885

    申请日：1981-04-07

    Applicant: HOECHST AG

    Inventor： HOYER ERNST DR ,  FASS RUDOLF

    IPC: C09B41/00 ,  C07C303/22 ,  C09B62/513 ,  C09B62/453 ,  C09B33/10 ,  D06P1/384 ,  D06P1/06

    Abstract: 1. A process for the preparation of disazo compounds of the general formula (1) see diagramm : EP0063276,P12,F4 in which R**1 denotes a hydrogen atom, a chlorine or bromine atom or a sulfo group, R**2 is a hydrogen atom or a chlorine or bromine atom, R**3 represents a hydrogen atom, an alkyl group having 1 to 4 C-atoms or an alkoxy group having 1 to 4 C-atoms and R**4 denotes an alkoxy group having 1 to 4 C-atoms and Z**1 and Z**2 are each bonded in the benzene nucleus in the meta- or para-position relative to the azo group and each represents a hydrogen atom, the beta-thiosulfatoethylsulfonyl group, the vinylsulfonyl group or the beta-sulfatoethylsulfonyl group, and Z**1 and Z**2 can be identical to or different from one another, but with the proviso that they do not both represent a hydrogen atom at the same time, and M represents a hydrogen atom or the equivalent of a metal, and the formula moieties R**1 , R**2 , R**3 , R**4 and M are identical to or different from one another and also identical to or different from Z**1 and Z**2 , characterized by that a mixture of two diazotized aromatic amines of the general formulae (2) and (3) see diagramm : EP0063276,P12,F5 see diagramm : EP0063276,P12,F6 in which R**1 , R**2 , R**3 , R**4 , Z**1 and Z**2 have the abovementioned meanings, are reacted with a coupling component of the general formula (4) see diagramm : EP0063276,P12,F7 in which M has the abovementioned meaning, first in a strongly acid range and then in a weakly acid to weakly alkaline range.

Patent Agency Ranking