ES8200134A1 - Procedimiento para la obtencion de colorantes poliazoicos - Google Patents

Procedimiento para la obtencion de colorantes poliazoicos

Info

Publication number
ES8200134A1
ES8200134A1 ES497258A ES497258A ES8200134A1 ES 8200134 A1 ES8200134 A1 ES 8200134A1 ES 497258 A ES497258 A ES 497258A ES 497258 A ES497258 A ES 497258A ES 8200134 A1 ES8200134 A1 ES 8200134A1
Authority
ES
Spain
Prior art keywords
leather
preparation
vegetable fibre
fibre materials
dyestuffs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES497258A
Other languages
English (en)
Other versions
ES497258A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES8200134A1 publication Critical patent/ES8200134A1/es
Publication of ES497258A0 publication Critical patent/ES497258A0/es
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/08—Preparation of azo dyes from other azo compounds by reduction
    • C09B43/10—Preparation of azo dyes from other azo compounds by reduction with formation of a new azo or an azoxy bridge

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Paper (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE COLORANTES POLIAZOICOS DE FORMULA (I), DONDE R SIGNIFICA C1-C4-ALQUILO, EN CASO DADO SUSTITUIDO; M SIGNIFICA HIDROGENO O UN CATION, Y A Y B SIGNIFICAN UNRESTO DE LA SERIE BENCENO O NAFTALENO. CARACTERIZADO PORQUE COMPUESTOS NITRO DE FORMULA (II), DONDE R Y M TIENE LOS SIGNIFICADOS YA INDICADOS, SE REDUCEN CONJUNTAMENTE CON COMPUESTOS NITRO O2N-A-N=N=B, DONDE A Y B TIENE LOS SIGNIFICADOS YA INDICADOS. LA REDUCCION CONJUNTA DE DISTINTOS COMPUESTOS NITROS CONDUCE A MEZCLAS DE COLORANTES, CUYA COMPOSICION SE PUEDE VARIAS MEDIANTE EL EMPLEO DE DISTINTAS CANTIDADES PARA OBTENER EL PREPARADO DE COLORANTE DESEADO, DONDE ES DE IMPORTANCIA PRIMORDIAL LA TONALIDAD DEL COLOR, LAS CONDICIONES DE SOLUBILIDAD Y LAS PROPIEDADES COLORISTAS. DE USO EN EL TEÑIDO DE FIBRAS VEGETALES, CUEROS Y PAPEL.
ES497258A 1979-11-29 1980-11-28 Procedimiento para la obtencion de colorantes poliazoicos Granted ES497258A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792948022 DE2948022A1 (de) 1979-11-29 1979-11-29 Polyazofarbstoffe, verfahren zu ihrer herstellung und ihre verwendung zum faerben von vegetabilischen fasermaterialien und leder

Publications (2)

Publication Number Publication Date
ES8200134A1 true ES8200134A1 (es) 1981-10-16
ES497258A0 ES497258A0 (es) 1981-10-16

Family

ID=6087138

Family Applications (1)

Application Number Title Priority Date Filing Date
ES497258A Granted ES497258A0 (es) 1979-11-29 1980-11-28 Procedimiento para la obtencion de colorantes poliazoicos

Country Status (7)

Country Link
US (1) US4387050A (es)
EP (1) EP0029950B1 (es)
JP (1) JPS5686956A (es)
BR (1) BR8007808A (es)
DE (2) DE2948022A1 (es)
ES (1) ES497258A0 (es)
IN (1) IN154928B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354872B1 (de) * 1988-07-22 1995-09-13 Ciba-Geigy Ag Trisazofarbstoffe und Verfahren zum Färben von Papier
JP3680323B2 (ja) * 1993-10-14 2005-08-10 住友化学株式会社 染料系偏光膜
US5562745A (en) * 1994-03-16 1996-10-08 Minnesota Mining And Manufacturing Company Abrasive articles, methods of making abrasive articles, and methods of using abrasive articles
TW572970B (en) * 2000-11-27 2004-01-21 Sumitomo Chemical Co Polyazo compound or salt thereof and dye-based polarization film containing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE601095A (es) * 1960-03-09
CH400417A (de) * 1960-04-08 1965-10-15 Sandoz Ag Verfahren zur Herstellung von Disazofarbstoffen
FR2123154B1 (es) * 1971-01-26 1973-11-30 Ugine Kuhlmann
GB1569259A (en) * 1975-11-20 1980-06-11 Ici Ltd Concentrated aqueous solutions of disazo dyes

Also Published As

Publication number Publication date
BR8007808A (pt) 1981-06-16
US4387050A (en) 1983-06-07
EP0029950A1 (de) 1981-06-10
IN154928B (es) 1984-12-22
JPS5686956A (en) 1981-07-15
ES497258A0 (es) 1981-10-16
DE2948022A1 (de) 1981-06-04
DE3062781D1 (en) 1983-05-19
EP0029950B1 (de) 1983-04-13

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