GB1507595A - Preparation of azo dyestuffs whilst they are undergoing comminution - Google Patents

Preparation of azo dyestuffs whilst they are undergoing comminution

Info

Publication number
GB1507595A
GB1507595A GB3083076A GB3083076A GB1507595A GB 1507595 A GB1507595 A GB 1507595A GB 3083076 A GB3083076 A GB 3083076A GB 3083076 A GB3083076 A GB 3083076A GB 1507595 A GB1507595 A GB 1507595A
Authority
GB
United Kingdom
Prior art keywords
coupling
whilst
azo dyestuffs
preparation
july
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
GB3083076A
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 GB1507595A publication Critical patent/GB1507595A/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
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • 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
    • C09B41/008—Special methods of performing the coupling reaction characterised by process features using mechanical or physical means, e.g. using ultra-sound, milling during coupling or microreactors

Landscapes

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

Abstract

1507595 Preparing azo dyestuffs whilst undergoing mechanical comminution BAYER AG 23 July 1976 [26 July 1975] 30830/76 Heading C4P A process for the production of an azo dyestuff in a form directly suitable for dyeing comprises diazotizing an aromatic amine and reacting the diazo compound with a coupling component in aqueous dispersion optionally followed by drying, the diazotization and/or coupling being carried out accompanied by mechanical comminution in a stirred ball mill. The diazotization coupling is preferably carried out in the presence of a dispersing agent and the resulting dyestuff suspension or solution is purified by ultrafiltration.
GB3083076A 1975-07-26 1976-07-23 Preparation of azo dyestuffs whilst they are undergoing comminution Expired GB1507595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752533603 DE2533603A1 (en) 1975-07-26 1975-07-26 PRODUCTION OF AZO DYES WITH CRUSHING

Publications (1)

Publication Number Publication Date
GB1507595A true GB1507595A (en) 1978-04-19

Family

ID=5952592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3083076A Expired GB1507595A (en) 1975-07-26 1976-07-23 Preparation of azo dyestuffs whilst they are undergoing comminution

Country Status (8)

Country Link
BE (1) BE844441A (en)
BR (1) BR7604815A (en)
DE (1) DE2533603A1 (en)
DK (1) DK333176A (en)
ES (1) ES450090A1 (en)
FR (1) FR2319685A1 (en)
GB (1) GB1507595A (en)
IN (1) IN143348B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847532A1 (en) * 1978-11-02 1980-05-08 Bayer Ag METHOD FOR THE PRODUCTION OF AZO DYES
US4684440A (en) * 1985-12-09 1987-08-04 Paper Chemistry Laboratory, Inc. Method for manufacturing paper products
US4980459A (en) * 1983-09-21 1990-12-25 Ciba-Geigy Corporation Process for the manufacture of formulations of water-insoluble azo dyes
US5114539A (en) * 1985-12-09 1992-05-19 Paper Chemistry Laboratory, Inc. Methods for manufacturing paper products
EP1195411A1 (en) * 2000-10-05 2002-04-10 Clariant GmbH Process for the preparation of azo colourants
WO2005105928A1 (en) * 2004-04-22 2005-11-10 Clariant Produkte (Deutschland) Gmbh High-purity naphthol as pigments
WO2005105927A1 (en) * 2004-04-22 2005-11-10 Clariant Produkte (Deutschland) Gmbh Process for producing high-purity azo dyes
CN103450699A (en) * 2013-09-13 2013-12-18 杭州福莱蒽特精细化工有限公司 Grinding coupling method for preparing disperse dye

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003656B1 (en) * 1978-02-14 1981-07-15 Imperial Chemical Industries Plc Process for the diazotisation of amines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1172849A (en) * 1956-03-07 1959-02-16 Ciba Geigy Process for the preparation of azo pigments
FR1321164A (en) * 1962-04-25 1963-03-15 Geigy Ag J R Process for the preparation of azo pigments

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847532A1 (en) * 1978-11-02 1980-05-08 Bayer Ag METHOD FOR THE PRODUCTION OF AZO DYES
US4980459A (en) * 1983-09-21 1990-12-25 Ciba-Geigy Corporation Process for the manufacture of formulations of water-insoluble azo dyes
US4684440A (en) * 1985-12-09 1987-08-04 Paper Chemistry Laboratory, Inc. Method for manufacturing paper products
US5114539A (en) * 1985-12-09 1992-05-19 Paper Chemistry Laboratory, Inc. Methods for manufacturing paper products
EP1195411A1 (en) * 2000-10-05 2002-04-10 Clariant GmbH Process for the preparation of azo colourants
US6548647B2 (en) 2000-10-05 2003-04-15 Clariant Gmbh Process for preparing azo colorants
WO2005105928A1 (en) * 2004-04-22 2005-11-10 Clariant Produkte (Deutschland) Gmbh High-purity naphthol as pigments
WO2005105927A1 (en) * 2004-04-22 2005-11-10 Clariant Produkte (Deutschland) Gmbh Process for producing high-purity azo dyes
CN103450699A (en) * 2013-09-13 2013-12-18 杭州福莱蒽特精细化工有限公司 Grinding coupling method for preparing disperse dye
CN103450699B (en) * 2013-09-13 2015-07-01 杭州福莱蒽特精细化工有限公司 Grinding coupling method for preparing disperse dye

Also Published As

Publication number Publication date
FR2319685B1 (en) 1980-05-09
ES450090A1 (en) 1977-07-16
DK333176A (en) 1977-01-27
IN143348B (en) 1977-11-05
FR2319685A1 (en) 1977-02-25
DE2533603A1 (en) 1977-02-10
BR7604815A (en) 1977-08-02
BE844441A (en) 1977-01-24

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Legal Events

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