中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

26 records (took 0.02 seconds)

    11.
    发明专利
    未知

    公开(公告)号：FI822924L

    公开(公告)日：1983-02-26

    申请号：FI822924

    申请日：1982-08-23

    Applicant: HOECHST AG

    Inventor： SOMMER KARL ,  ARMBRECHT NORBERT

    IPC: C09B33/18 ,  C09B33/22 ,  D06P1/06 ,  D06P3/32 ,  C09B

    Abstract: Water soluble trisazo dyestuffs of the formula in which A is 1-amino-8-naphthol-3,6-disulfonic acid or 1-amino-8-naphthol-4,6-disulfonic acid, or a mixture of these two compounds, and B is 1-(3'- or 4'-aminophenyl)-3-methyl-5-pyrazolone, a process for their manufacture by diazotizing component A and coupling it with 3,3'-dihydroxy-diphenylamine to give a monoazo dyestuff, reacting this dyestuff with diazotized component B to give a disazo dyestuff, and converting this dyestuff to the trisazo dyestuff by uniting it with diazotized 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, or by operating as described while, however, changing the sequence of reaction of component B and 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, and use of these dyestuffs for the dyeing of leather and fur.

    STABLE MONOAZO DYESTUFF
    15.
    发明专利
    STABLE MONOAZO DYESTUFF 未知

    公开(公告)号：CA1064917A

    公开(公告)日：1979-10-23

    申请号：CA251997

    申请日：1976-05-07

    Applicant: HOECHST AG

    Inventor： KRUSE HUBERT ,  SOMMER KARL

    IPC: C09B67/26 ,  C09B29/08 ,  C09B67/00 ,  C09B67/48 ,  C09B43/00

    Abstract: STABLE MONOAZO DYESTUFF of the disclosure: The modification being stable under dyeing conditions of the dyestuff of the formula characterized by an X-ray diffraction diagram with characteristic reflexes at the following glance angles .theta. with the relative intensities as given below: ¢o! 2.45 6.30 10.07 11.00 11.35 11.70 12.36 13.55 14.80 15.85, 63 100 30 48 83 88 86 59 52 34 said modification in the form of a liquid or solid dyeing preparation being suitable for the dyeing of fibrous materials consisting of cellulose esters or synthetic linear polyesters.

    A PROCESS FOR THE PREPARATION OF A DYEING-STABLE MONOAZO DYESTUFF
    17.
    发明专利
    A PROCESS FOR THE PREPARATION OF A DYEING-STABLE MONOAZO DYESTUFF 未知

    公开(公告)号：IN160114B

    公开(公告)日：1987-06-27

    申请号：IN1372CA1983

    申请日：1983-11-09

    Applicant: HOECHST AG

    Inventor： SOMMER KARL ,  SCHNEIDER MANFRED ,  SCHICKFLUSS RUDOLF

    IPC: C09B67/48 ,  C09B29/08 ,  C09B29/085 ,  C09B67/00 ,  C09B67/10 ,  D06P1/18

    Abstract: A dyeing-stable modification ( beta -modification) of the dyestuff of the formula (I) (I) which has the X-ray diffraction diagram shown in FIG. 1 and having the characteristic reflections at the following glancing angles and relative intensities: -[ theta ] 2.74 4.27 4.70 5.50 8.74 11.24 12.44 -relative 100 72 40 23 27 32 26 -intensity - a process for its preparation by heating the dyestuff of said formula (I) of the dyeing-unstable alpha -modification, characterized by an X-ray diffraction diagram having the characteristic reflections at the following glancing angles and relative intensities -[ theta ] 3.55 4.15 5.35 9.45 10.41 12.71 13.89 -relative 42 100 35 24 34 94 48 -intensity - at temperatures of 60 DEG to 120 DEG C. in an organic solvent, and its use for dyeing fiber materials made of cellulose esters or synthetic linear polyesters.

    19.
    发明专利
    未知

    公开(公告)号：FI72134B

    公开(公告)日：1986-12-31

    申请号：FI822924

    申请日：1982-08-23

    Applicant: HOECHST AG

    Inventor： SOMMER KARL ,  ARMBRECHT NORBERT

    IPC: C09B33/18 ,  C09B33/22 ,  D06P1/06 ,  D06P3/32

    Abstract: Water soluble trisazo dyestuffs of the formula in which A is 1-amino-8-naphthol-3,6-disulfonic acid or 1-amino-8-naphthol-4,6-disulfonic acid, or a mixture of these two compounds, and B is 1-(3'- or 4'-aminophenyl)-3-methyl-5-pyrazolone, a process for their manufacture by diazotizing component A and coupling it with 3,3'-dihydroxy-diphenylamine to give a monoazo dyestuff, reacting this dyestuff with diazotized component B to give a disazo dyestuff, and converting this dyestuff to the trisazo dyestuff by uniting it with diazotized 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, or by operating as described while, however, changing the sequence of reaction of component B and 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, and use of these dyestuffs for the dyeing of leather and fur.

    20.
    发明专利
    未知

    公开(公告)号：BR8306263A

    公开(公告)日：1984-06-19

    申请号：BR8306263

    申请日：1983-11-14

    Applicant: HOECHST AG

    Inventor： SOMMER KARL ,  SCHNEIDER MANFRED ,  SCHICKFLUSS RUDOLF

    IPC: C09B67/48 ,  C09B29/08 ,  C09B29/085 ,  C09B67/00 ,  C09B67/10 ,  D06P1/18 ,  D06P3/34

    Abstract: A dyeing-stable modification ( beta -modification) of the dyestuff of the formula (I) (I) which has the X-ray diffraction diagram shown in FIG. 1 and having the characteristic reflections at the following glancing angles and relative intensities: -[ theta ] 2.74 4.27 4.70 5.50 8.74 11.24 12.44 -relative 100 72 40 23 27 32 26 -intensity - a process for its preparation by heating the dyestuff of said formula (I) of the dyeing-unstable alpha -modification, characterized by an X-ray diffraction diagram having the characteristic reflections at the following glancing angles and relative intensities -[ theta ] 3.55 4.15 5.35 9.45 10.41 12.71 13.89 -relative 42 100 35 24 34 94 48 -intensity - at temperatures of 60 DEG to 120 DEG C. in an organic solvent, and its use for dyeing fiber materials made of cellulose esters or synthetic linear polyesters.

Patent Agency Ranking