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GB1537383A - Disazo dye derived from a tetrachloro benzidine - Google Patents

Disazo dye derived from a tetrachloro benzidine

Info

Publication number
GB1537383A
GB1537383A GB1240276A GB1240276A GB1537383A GB 1537383 A GB1537383 A GB 1537383A GB 1240276 A GB1240276 A GB 1240276A GB 1240276 A GB1240276 A GB 1240276A GB 1537383 A GB1537383 A GB 1537383A
Authority
GB
United Kingdom
Prior art keywords
tetrachlorobenzidine
march
isolation
heating
disazo dye
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
GB1240276A
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.)
BASF SE
Original Assignee
BASF SE
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
Priority claimed from DE19752513578 external-priority patent/DE2513578C3/en
Application filed by BASF SE filed Critical BASF SE
Publication of GB1537383A publication Critical patent/GB1537383A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
    • C09B35/10—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type
    • C09B35/18—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from heterocyclic compounds
    • C09B35/185—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from heterocyclic compounds from pyridine or pyridone components

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

1537383 Water-insoluble disazo dyestuff derived from a tetrachlorobenzidine BASF FARBEN & FASERN AG 26 March 1976 [27 March 1975] 12402/76 Heading CAP The novel water-insoluble disazo dyestuff of the formula is prepared by diazotizing the appropriate tetrachlorobenzidine and coupling with 2,6-dihydroxy- 3-cyano-4-methylpyridine. Its pigment properties may be improved by heating the coupling mixture before its isolation (possibly with addition of a long-chain fatty amine) or by heating it in an organic solvent, e.g. nitrobenzene, after isolation. It has use for pigmenting plastics and varnishes and in the manufacture of printing inks. Specification 1,285,339 is referred to.
GB1240276A 1975-03-27 1976-03-26 Disazo dye derived from a tetrachloro benzidine Expired GB1537383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752513578 DE2513578C3 (en) 1975-03-27 2,6-Dioxy-3-cyano-4-methylpyridine disazo dye, process for its preparation and its use for printing inks and varnishes

Publications (1)

Publication Number Publication Date
GB1537383A true GB1537383A (en) 1978-12-29

Family

ID=5942551

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1240276A Expired GB1537383A (en) 1975-03-27 1976-03-26 Disazo dye derived from a tetrachloro benzidine

Country Status (4)

Country Link
CH (1) CH581171A5 (en)
DK (1) DK140642B (en)
FR (1) FR2305472A1 (en)
GB (1) GB1537383A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609726A (en) * 1983-03-18 1986-09-02 Basf Aktiengesellschaft Disazo dyes derived from 3,3'-dihalo-5,5'-dichlorobenzidine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH500267A (en) * 1968-03-01 1970-12-15 Basf Ag Process for the preparation of new disazo dyes
GB1285339A (en) * 1968-12-09 1972-08-16 Ici Ltd New water-insoluble disazo dyestuffs containing 2-hydroxy-3-azo-6-pyridone residues

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609726A (en) * 1983-03-18 1986-09-02 Basf Aktiengesellschaft Disazo dyes derived from 3,3'-dihalo-5,5'-dichlorobenzidine

Also Published As

Publication number Publication date
FR2305472A1 (en) 1976-10-22
DE2513578A1 (en) 1976-09-30
CH581171A5 (en) 1976-10-29
DE2513578B2 (en) 1977-06-16
FR2305472B1 (en) 1979-04-20
DK140642B (en) 1979-10-15
DK140642C (en) 1980-03-31
DK136576A (en) 1976-09-28

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Legal Events

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