GB1547759A - Automatic control of azo-coupling in the preparation of pigments - Google Patents

Automatic control of azo-coupling in the preparation of pigments

Info

Publication number
GB1547759A
GB1547759A GB3328475A GB3328475A GB1547759A GB 1547759 A GB1547759 A GB 1547759A GB 3328475 A GB3328475 A GB 3328475A GB 3328475 A GB3328475 A GB 3328475A GB 1547759 A GB1547759 A GB 1547759A
Authority
GB
United Kingdom
Prior art keywords
coupling
azo
pigments
component
preparation
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
GB3328475A
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.)
Novartis AG
Original Assignee
Ciba Geigy 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 Ciba Geigy AG filed Critical Ciba Geigy AG
Priority to GB3328475A priority Critical patent/GB1547759A/en
Priority to CA258,624A priority patent/CA1061334A/en
Priority to CH1007576A priority patent/CH618456A5/en
Priority to FR7624068A priority patent/FR2320970A1/en
Priority to DE19762635536 priority patent/DE2635536C2/en
Priority to IT2613176A priority patent/IT1065105B/en
Priority to JP9474376A priority patent/JPS5943499B2/en
Priority to US05/837,654 priority patent/US4159264A/en
Publication of GB1547759A publication Critical patent/GB1547759A/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
    • C09B41/00—Special methods of performing the coupling reaction
    • C09B41/006—Special methods of performing the coupling reaction characterised by process features
    • C09B41/007—Special methods of performing the coupling reaction characterised by process features including condition or time responsive control, e.g. automatically controlled processes; Stepwise coupling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Coupling process for azo pigments, in which the excess amount of diazo or coupling component is continuously determined and the addition of the diazo or coupling component to the reaction is automatically controlled by means of an automatic chemical analyser having a built-in dialyser component. This automatically controlled azo coupling process has the advantage that it avoids the presence of an excess of diazo component in any cases where this would be harmful to the product.
GB3328475A 1975-08-09 1975-08-09 Automatic control of azo-coupling in the preparation of pigments Expired GB1547759A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB3328475A GB1547759A (en) 1975-08-09 1975-08-09 Automatic control of azo-coupling in the preparation of pigments
CA258,624A CA1061334A (en) 1975-08-09 1976-08-06 Preparation of azo pigments
CH1007576A CH618456A5 (en) 1975-08-09 1976-08-06 Coupling process for azo pigments
FR7624068A FR2320970A1 (en) 1975-08-09 1976-08-06 PERFECTED PROCESS FOR PREPARING AZOIC PIGMENTS BY COPULATION
DE19762635536 DE2635536C2 (en) 1975-08-09 1976-08-06 Coupling process for azo pigments
IT2613176A IT1065105B (en) 1975-08-09 1976-08-06 Automatic control of coupling reaction in azo pigment prepn. - using a chemical analyser contg. a dialyser unit
JP9474376A JPS5943499B2 (en) 1975-08-09 1976-08-09 Azo pigment coupling method
US05/837,654 US4159264A (en) 1975-08-09 1977-09-29 Automatic control of azo coupling processes in the manufacture of azo pigments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3328475A GB1547759A (en) 1975-08-09 1975-08-09 Automatic control of azo-coupling in the preparation of pigments

Publications (1)

Publication Number Publication Date
GB1547759A true GB1547759A (en) 1979-06-27

Family

ID=10350930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3328475A Expired GB1547759A (en) 1975-08-09 1975-08-09 Automatic control of azo-coupling in the preparation of pigments

Country Status (6)

Country Link
JP (1) JPS5943499B2 (en)
CA (1) CA1061334A (en)
CH (1) CH618456A5 (en)
DE (1) DE2635536C2 (en)
FR (1) FR2320970A1 (en)
GB (1) GB1547759A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006008495A1 (en) * 2004-07-20 2006-01-26 Fujifilm Imaging Colorants Limited Manufacturing process

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1570292A (en) * 1976-10-28 1980-06-25 Ciba Geigy Ag Automatic control of azo pigments
DE2844634A1 (en) * 1978-10-13 1980-04-24 Hoechst Ag METHOD FOR THE CONTINUOUS PRODUCTION OF AZOPIGMENTS
US4341701A (en) * 1979-11-07 1982-07-27 Ciba-Geigy Corporation Production of pigments
GB2129434B (en) * 1982-10-08 1986-04-16 Ciba Geigy Ag Production of azo compounds
JPH0723961B2 (en) * 1984-06-29 1995-03-15 キヤノン株式会社 Charge generation material and manufacturing method thereof
JPS6175359A (en) * 1984-09-21 1986-04-17 Canon Inc Production of azo pigment and electrophotographic sensitive body using said azo pigment
EP0220130B1 (en) * 1985-08-22 1990-03-28 Ciba-Geigy Ag Method for the determination of the concentration of diazonium ions
IN172052B (en) * 1987-12-01 1993-03-27 Hoechst Ag
US5958128A (en) * 1996-02-26 1999-09-28 Toyo Ink Manufacturing Co., Ltd. Method of manufacturing a disazo pigment and disazo pigment manufactured thereby
JP2006028341A (en) * 2004-07-16 2006-02-02 Toyo Ink Mfg Co Ltd Method for producing disazo pigment and disazo pigment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797149A (en) * 1953-01-08 1957-06-25 Technicon International Ltd Methods of and apparatus for analyzing liquids containing crystalloid and non-crystalloid constituents
DE1934388B2 (en) * 1969-07-07 1975-01-16 Vyzkumny Ustav Organickych Syntez, Pardubice-Rybitvi (Tschechoslowakei) Process for the repeated batch production of azo dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006008495A1 (en) * 2004-07-20 2006-01-26 Fujifilm Imaging Colorants Limited Manufacturing process
US7772376B2 (en) 2004-07-20 2010-08-10 Fujifilm Imaging Colorants Limited Manufacturing process

Also Published As

Publication number Publication date
DE2635536A1 (en) 1977-02-17
JPS5227433A (en) 1977-03-01
JPS5943499B2 (en) 1984-10-22
CA1061334A (en) 1979-08-28
FR2320970B1 (en) 1979-06-22
DE2635536C2 (en) 1985-12-19
FR2320970A1 (en) 1977-03-11
CH618456A5 (en) 1980-07-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950806