GB1197397A - Process for the manufacture of Disazo Pigments - Google Patents

Process for the manufacture of Disazo Pigments

Info

Publication number
GB1197397A
GB1197397A GB4230368A GB4230368A GB1197397A GB 1197397 A GB1197397 A GB 1197397A GB 4230368 A GB4230368 A GB 4230368A GB 4230368 A GB4230368 A GB 4230368A GB 1197397 A GB1197397 A GB 1197397A
Authority
GB
United Kingdom
Prior art keywords
residue
disazo pigments
diazo
sept
formula
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
GB4230368A
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 Schweiz AG
Original Assignee
Ciba 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 AG filed Critical Ciba AG
Publication of GB1197397A publication Critical patent/GB1197397A/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)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Cosmetics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,197,397. Preparation of disazo pigments. CIBA Ltd. 5 Sept., 1968 [15 Sept., 1967], No. 42303/68. Heading C4P. Disazo pigments of formula (I) in which R 1 is an aryl residue, R 2 a naphthalene residue in which the azo, hydroxyl, and carboxylic acid amide groups are in the 1, 2 and 3- positions, R 3 is an arylene residue are prepared by heating a diazo-amino compound containing residue R 1 with a bis-naphthol of formula (II) in aqueous-organic solvent in presence of an organic acid, preferably a polyhalogenated fatty acid at 60-180‹ C. The diazo-amino compounds may be formed from an aryldiazonium salt and a primary or secondary amine including pyrrolidine, piperidine, morpholine, dicyclohexylamine. Organic solvents include chlorobenzene, nitrobenzene, o-dichlorobenzene pyridine, ethylene glycol, acids specified are formic, acetic, trifluoro, and trichloroacetic.
GB4230368A 1967-09-15 1968-09-05 Process for the manufacture of Disazo Pigments Expired GB1197397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1291867A CH496066A (en) 1967-09-15 1967-09-15 Prodn of diazo pigments

Publications (1)

Publication Number Publication Date
GB1197397A true GB1197397A (en) 1970-07-01

Family

ID=4387591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4230368A Expired GB1197397A (en) 1967-09-15 1968-09-05 Process for the manufacture of Disazo Pigments

Country Status (7)

Country Link
BE (1) BE720884A (en)
CH (1) CH496066A (en)
DE (1) DE1794100A1 (en)
FR (1) FR1581311A (en)
GB (1) GB1197397A (en)
NL (1) NL6813160A (en)
SE (1) SE337641B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578033A5 (en) * 1972-10-13 1976-07-30 Sandoz Ag
NL7316786A (en) * 1972-12-12 1974-06-14

Also Published As

Publication number Publication date
DE1794100A1 (en) 1971-05-06
NL6813160A (en) 1969-03-18
BE720884A (en) 1969-03-13
CH496066A (en) 1970-09-15
SE337641B (en) 1971-08-16
FR1581311A (en) 1969-09-12

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees