中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

58 records (took 0.022 seconds)

    21.
    发明专利
    未知

    公开(公告)号：BR7901135A

    公开(公告)日：1979-09-11

    申请号：BR7901135

    申请日：1979-02-21

    Applicant: HOECHST AG

    Inventor： NOLL W ,  MEININGER F ,  HOYER E

    IPC: C09B62/513 ,  D06P3/66 ,  C09B62/82

    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.

    22.
    发明专利
    未知

    公开(公告)号：BR7807229A

    公开(公告)日：1979-06-12

    申请号：BR7807229

    申请日：1978-11-01

    Applicant: HOECHST AG

    Inventor： HOYER E ,  FASS R ,  MEININGER F

    IPC: C09B62/44 ,  C09B62/513 ,  D06P3/66 ,  C09B62/00 ,  D06P3/24

    Abstract: The novel water-soluble disazo dyestuffs consist of two monoazo dyestuff moieties each containing as diazo component an amine of the benzene or naphthalene series and as coupling component an amino-naphthol-mono- or disulfonic acid. The two moieties are bonded to each other via a bridge member bound to the amino groups of the coupling components and comprising two triazine radicals each containing a halogen atom, a sulfonic acid group or a thio ether or oxygen ether group or an amino group and the diazo components contain a fiber-reactive radical of the vinyl sulfone series. The metal-free dyestuffs can be transformed into the corresponding heavy metal complex dyestuffs, preferably copper, cobalt and chromium complex dyestuffs, by treatment with an agent donating a heavy metal cation. The novel dyestuffs are excellently suitable for dyeing and printing fiber material of natural and regenerated cellulose and natural, regenerated and synthetic polyamides. They are distinguished by a high tinctorial strength, a very good uptake from a long liquor, a good color- build up and good printing properties. The dyeings obtained therewith have a high fastness to processing and in use.

    23.
    发明专利
    未知

    公开(公告)号：BR7807226A

    公开(公告)日：1979-06-12

    申请号：BR7807226

    申请日：1978-11-01

    Applicant: HOECHST AG

    Inventor： FASS R ,  MEININGER F ,  HOYER E

    IPC: C09B62/44 ,  C09B62/513 ,  C09B62/515 ,  D06P3/66 ,  C09B62/00 ,  D06P3/24

    Abstract: Water-soluble compounds and their salts suitable as dyestuffs of the formula +TR in which D is a benzene or naphthalene nucleus, R1 and R2 are, inter alia, hydrogen, halogen, lower alkyl, lower alkoxy and sulfo, R1 being in ortho-position to the azo group, X is a fiber-reactive radical of the vinyl sulfone series, K1 and K2 are radicals of coupling components of the acetoacetarylide and pyrozolone series and K2 additionally denotes a radical of the sulfonaphthol series, the coupling components being bound to the triazine ring via amino groups, Y is a halogen atom, a sulfo group, a thio ether or oxygen ether radical, or a primary, secondary or tertiary amino group, A is an aliphatic, aliphatic-heterocyclic, aliphatic-aromatic or aromatic bridge member and n is zero or one. The novel compounds are prepared, for example, by reacting 2 mols of the diazo component with the fiber-reactive radical of the vinyl sulfone series with 1 mol of a bivalent coupling component containing the two radicals K1 and K2 linked to each other by the triazine ring, or 2 triazine radicals linked with each other by bridge member A; or by reacting one mol each of a monoazo compound consisting of the said diazo component with the fiber reactive radical and a coupling component K1 or K2 with a corresponding triazine radical additionally carrying a halogen atom capable of reacting with the amino group. The metal-free compounds can be transformed into the corresponding heavy metal complex, preferably copper, cobalt and chromium complex compounds, by treatment with an agent donating a heavy metal cation. The novel compounds are excellently suitable for dyeing and printing fiber material of natural and regenerated cellulose and natural, regenerated and synthetic polyamides. They are distinguished by high tinctorial strength, a very good uptake from a long liquor, a good color-build up. The dyeings and prints obtained therewith have a high fastness to processing and in use.

Patent Agency Ranking