GB1143727A - - Google Patents

Info

Publication number
GB1143727A
GB1143727A GB1143727DA GB1143727A GB 1143727 A GB1143727 A GB 1143727A GB 1143727D A GB1143727D A GB 1143727DA GB 1143727 A GB1143727 A GB 1143727A
Authority
GB
United Kingdom
Prior art keywords
sept
organic solvent
solution
mixing
coupling
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
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.)
Publication date
Publication of GB1143727A publication Critical patent/GB1143727A/en
Expired 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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/147—Disazo dyes in which the coupling component is a bis -(-o-hydroxy-carboxylic- acid amide)
    • 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
    • C09B41/00—Special methods of performing the coupling reaction
    • C09B41/006—Special methods of performing the coupling reaction characterised by process features

Abstract

1,143,727. Coupling process. CIBA Ltd. 8 Sept., 1967 [9 Sept., 1966; 8 Aug., 1967] No. 41099/67. Heading C4P. Disazo pigments are prepared by mixing an acid solution of a diazonium compound with an aqueous alkaline solution of a bis-[2-hydroxynaphthoyl-(3)]-arylenediamine in continuous manner with vigorous agitation, the resulting pigment suspension being continuously withdrawn. In particular coupling components of formula in which R is phenylene or diphenylene and which may be substituted by one or more halogen atoms, alkyl or alkoxy groups and X is halogen or hydrogen or an alkoxy group are used. Preferably, the liquids are mixed in a mixing nozzle and the coupling component may be dissolved with the aid of a solution promoter which may be a water-miscible organic solvent, e.g. alcohols, ethers, bases. The pigments produced are advantageously purified by treating with an organic solvent, e.g. chloronitrobenzenes, pyridine, picoline and quinoline.
GB1143727D 1966-09-09 Expired GB1143727A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1309066A CH477517A (en) 1966-09-09 1966-09-09 Process for the production of disazo pigments
CH1114867 1967-08-08

Publications (1)

Publication Number Publication Date
GB1143727A true GB1143727A (en) 1900-01-01

Family

ID=25707866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1143727D Expired GB1143727A (en) 1966-09-09

Country Status (7)

Country Link
BE (1) BE703662A (en)
CH (1) CH477517A (en)
DE (1) DE1644117A1 (en)
ES (1) ES344876A1 (en)
GB (1) GB1143727A (en)
NL (1) NL6712378A (en)
SE (1) SE314150B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302482A1 (en) * 1973-01-19 1974-08-08 Hoechst Ag DISAZOPIGMENT, THE METHOD FOR ITS MANUFACTURING AND ITS USE
US4454067A (en) * 1978-10-13 1984-06-12 Hoechst Aktiengesellschaft Continuous production of azo pigments
US4689403A (en) * 1966-08-15 1987-08-25 Ciba-Geigy Ag Disazo pigment from condensation of carboxylic acid chloride with 2,5-dichloro-1,4-phenylene diamine
EP0244686A2 (en) * 1986-05-03 1987-11-11 Hoechst Aktiengesellschaft Process for the manufacture of azo pigments
US6437104B1 (en) 2000-07-01 2002-08-20 Clariant Gmbh Preparation of disazo condensation pigments in microreactors
WO2008125580A2 (en) * 2007-04-13 2008-10-23 Basf Se Production of fine-particle pigments

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2521249C2 (en) * 1975-05-13 1983-11-10 Bayer Ag, 5090 Leverkusen Process for the production of opaque organic pigments
EP0095442A1 (en) * 1982-05-18 1983-11-30 Ciba-Geigy Ag Disazo pigments, method for their preparation and their use

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689403A (en) * 1966-08-15 1987-08-25 Ciba-Geigy Ag Disazo pigment from condensation of carboxylic acid chloride with 2,5-dichloro-1,4-phenylene diamine
DE2302482A1 (en) * 1973-01-19 1974-08-08 Hoechst Ag DISAZOPIGMENT, THE METHOD FOR ITS MANUFACTURING AND ITS USE
US4454067A (en) * 1978-10-13 1984-06-12 Hoechst Aktiengesellschaft Continuous production of azo pigments
EP0244686A2 (en) * 1986-05-03 1987-11-11 Hoechst Aktiengesellschaft Process for the manufacture of azo pigments
EP0244686A3 (en) * 1986-05-03 1990-11-14 Hoechst Aktiengesellschaft Process for the manufacture of azo pigments
US6437104B1 (en) 2000-07-01 2002-08-20 Clariant Gmbh Preparation of disazo condensation pigments in microreactors
WO2008125580A2 (en) * 2007-04-13 2008-10-23 Basf Se Production of fine-particle pigments
WO2008125580A3 (en) * 2007-04-13 2009-04-09 Basf Se Production of fine-particle pigments

Also Published As

Publication number Publication date
BE703662A (en) 1968-03-08
CH477517A (en) 1969-08-31
SE314150B (en) 1969-09-01
DE1644117A1 (en) 1970-10-29
NL6712378A (en) 1968-03-11
ES344876A1 (en) 1969-01-01

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