GB1453278A - Water-soluble tetrakis-azo dyestuffs - Google Patents

Water-soluble tetrakis-azo dyestuffs

Info

Publication number
GB1453278A
GB1453278A GB761075A GB761075A GB1453278A GB 1453278 A GB1453278 A GB 1453278A GB 761075 A GB761075 A GB 761075A GB 761075 A GB761075 A GB 761075A GB 1453278 A GB1453278 A GB 1453278A
Authority
GB
United Kingdom
Prior art keywords
water
soluble
tetrakis
azo dyestuffs
tetrazotization
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
GB761075A
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.)
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella Farbwerke Mainkur 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 Cassella Farbwerke Mainkur AG filed Critical Cassella Farbwerke Mainkur AG
Publication of GB1453278A publication Critical patent/GB1453278A/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
    • C09B35/50—Tetrazo dyes
    • C09B35/56—Tetrazo dyes of the type

Abstract

1453278 Water-soluble tetrakis-azo dyes CASSELLA FARBWERKE MAINKUR AG 24 Feb 1975 [25 Feb 1974] 7610/75 Heading C4P Water-soluble tetrakis-azo dyestuffs have the formula wherein R 1 is -OCH 3 or -CH 3 and R 2 is or a water-soluble salt thereof. The dyes are prepared by tetrazotization of the appropriate diaminodiphenyl, coupling with the aminonaphthols, and further tetrazotization and coupling. Deep black dyeings are obtained with wool, silk, cotton, straw, paper, wood, polyamides and cellulose, but especially with leather.
GB761075A 1974-02-25 1975-02-24 Water-soluble tetrakis-azo dyestuffs Expired GB1453278A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2408907A DE2408907C3 (en) 1974-02-25 1974-02-25 Water-soluble tetrakisazo dyes, processes for their preparation and their use for dyeing leather
JP60376A JPS5285227A (en) 1974-02-25 1976-01-01 Waterrsoluble tetrakisazo compounds

Publications (1)

Publication Number Publication Date
GB1453278A true GB1453278A (en) 1976-10-20

Family

ID=25766695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB761075A Expired GB1453278A (en) 1974-02-25 1975-02-24 Water-soluble tetrakis-azo dyestuffs

Country Status (12)

Country Link
JP (2) JPS50119024A (en)
AR (1) AR203894A1 (en)
BE (1) BE825889A (en)
BR (1) BR7501104A (en)
CH (1) CH597319A5 (en)
DE (1) DE2408907C3 (en)
DK (1) DK59475A (en)
FR (1) FR2262083B1 (en)
GB (1) GB1453278A (en)
IN (1) IN142710B (en)
LU (1) LU71903A1 (en)
NL (1) NL7501911A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2457956A1 (en) * 2010-11-30 2012-05-30 Kemira Oyj Azo dyes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520389A1 (en) * 1985-06-07 1986-12-11 Bayer Ag, 5090 Leverkusen TETRAQUIS AZO DYES

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2457956A1 (en) * 2010-11-30 2012-05-30 Kemira Oyj Azo dyes
WO2012072634A1 (en) * 2010-11-30 2012-06-07 Kemira Oyj Azo dyes
CN103228739A (en) * 2010-11-30 2013-07-31 凯米拉公司 Azo dyes
US8734532B2 (en) 2010-11-30 2014-05-27 Kemira Oyj Azo dyes
EP3296363A1 (en) * 2010-11-30 2018-03-21 Kemira Oyj Azo dyes

Also Published As

Publication number Publication date
BE825889A (en) 1975-08-25
AU7849975A (en) 1976-08-26
JPS50119024A (en) 1975-09-18
CH597319A5 (en) 1978-03-31
BR7501104A (en) 1975-12-02
NL7501911A (en) 1975-08-27
LU71903A1 (en) 1977-01-06
AR203894A1 (en) 1975-10-31
JPS5285227A (en) 1977-07-15
DE2408907A1 (en) 1975-09-18
FR2262083A1 (en) 1975-09-19
IN142710B (en) 1977-08-20
FR2262083B1 (en) 1979-02-23
DK59475A (en) 1975-10-27
DE2408907C3 (en) 1978-12-21
DE2408907B2 (en) 1978-05-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee