GB1299405A - Metalliferous disazo dyes their production and use - Google Patents

Metalliferous disazo dyes their production and use

Info

Publication number
GB1299405A
GB1299405A GB1979770A GB1979770A GB1299405A GB 1299405 A GB1299405 A GB 1299405A GB 1979770 A GB1979770 A GB 1979770A GB 1979770 A GB1979770 A GB 1979770A GB 1299405 A GB1299405 A GB 1299405A
Authority
GB
United Kingdom
Prior art keywords
dyes
weight
mole
metalliferous
metal
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
GB1979770A
Inventor
Alfred Frei
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.)
Sandoz AG
Original Assignee
Sandoz 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
Priority claimed from CH734769A external-priority patent/CH512566A/en
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of GB1299405A publication Critical patent/GB1299405A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24—Disazo or polyazo compounds

Abstract

1299405 Metal complex disazo dyes SANDOZ Ltd 24 April 1970 [14 May 1969 2 June 1969] 19797/70 Heading C4P Metalliferous disazo dyes have the formula wherein Me represents a metal atom and the ring A and/or the ring B may be further substituted. The dyes are generally present in the form of their alkali metal salts or their ammonium salts, and preferably their sodium salts. The dyes are produced by coupling 1 mole of a tetrazotized 4,41 - diamino - 3,3<SP>1</SP> - dimethoxydiphenyl or 4,41 - diamino 3,3<SP>1</SP> - dihydroxydiphenyl with 1 mole of 2-hydroxynaphthalene 6,8-disulphonic acid and 1 mole of 2-hydroxynaphthalene-3,6-disulphonic acid and treating the resulting azo dyes with a metal donating agent. Preferred metals are nickel and copper. In use, the dyes may be made into dry preparations comprising 30-90% by weight of dye a 70-10% by weight of a standardizing agent, e.g. Glaubers salt. They may also be used in the form of liquid preparations comprising 5-30% by weight of dye, 5-30% by weight of an amine and 40-90% by weight of water. The dyes give reddish blue shades on paper and cellulose fibre materials.
GB1979770A 1969-05-14 1970-04-24 Metalliferous disazo dyes their production and use Expired GB1299405A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH734769A CH512566A (en) 1969-05-14 1969-05-14 Metal contg azo dyes for dyeing paper
CH833469 1969-06-02

Publications (1)

Publication Number Publication Date
GB1299405A true GB1299405A (en) 1972-12-13

Family

ID=25701166

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1979770A Expired GB1299405A (en) 1969-05-14 1970-04-24 Metalliferous disazo dyes their production and use

Country Status (4)

Country Link
DE (1) DE2022364A1 (en)
ES (1) ES379585A1 (en)
FR (1) FR2042624B3 (en)
GB (1) GB1299405A (en)

Also Published As

Publication number Publication date
FR2042624A7 (en) 1971-02-12
DE2022364A1 (en) 1970-11-19
FR2042624B3 (en) 1973-03-16
ES379585A1 (en) 1973-04-16

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Legal Events

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