GB1302776A - - Google Patents

Info

Publication number
GB1302776A
GB1302776A GB3601870A GB3601870A GB1302776A GB 1302776 A GB1302776 A GB 1302776A GB 3601870 A GB3601870 A GB 3601870A GB 3601870 A GB3601870 A GB 3601870A GB 1302776 A GB1302776 A GB 1302776A
Authority
GB
United Kingdom
Prior art keywords
dyes
yellow
monoazo dyes
greenish
heading
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
GB3601870A
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 filed Critical
Publication of GB1302776A publication Critical patent/GB1302776A/en
Expired legal-status Critical Current

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  • Coloring (AREA)
  • Paper (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

1302776 Monoazo dyes SANDOZ Ltd 24 July 1970 [20 Aug 1969] 36018/70 Heading C4P The invention comprises monoazo dyes of formula wherein R is a halogen atom, preferably in the 4- or 5-position, R 1 is -OH or -NH 2 and the ring A may be further substituted. The dyes are prepared by azo coupling and are used to colour natural and synthetic polyamide fibres in yellow or greenish-yellow shades.
GB3601870A 1969-08-20 1970-07-24 Expired GB1302776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1258169A CH515306A (en) 1969-08-20 1969-08-20 Process for the production of acidic dyes

Publications (1)

Publication Number Publication Date
GB1302776A true GB1302776A (en) 1973-01-10

Family

ID=4384388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3601870A Expired GB1302776A (en) 1969-08-20 1970-07-24

Country Status (9)

Country Link
BE (1) BE754838A (en)
CA (1) CA924300A (en)
CH (1) CH515306A (en)
DE (1) DE2040476C2 (en)
ES (1) ES382821A1 (en)
FR (1) FR2058398B1 (en)
GB (1) GB1302776A (en)
NL (1) NL145888B (en)
ZA (1) ZA705730B (en)

Also Published As

Publication number Publication date
ES382821A1 (en) 1973-04-16
NL145888B (en) 1975-05-15
FR2058398B1 (en) 1974-07-12
NL7011770A (en) 1971-02-23
DE2040476C2 (en) 1972-09-14
ZA705730B (en) 1972-03-29
DE2040476B1 (en) 1972-02-03
CH515306A (en) 1971-11-15
BE754838A (en) 1971-01-18
FR2058398A1 (en) 1971-05-28
CA924300A (en) 1973-04-10

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years