专利检索_重氮化的胺与它本身偶合制备的偶氮染料专利检索_重氮化的胺与它本身偶合制备的偶氮染料专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
101	FR2189472B1 -	FR7319178	1973-05-25	FR2189472B1	1977-02-11

102		IT2454873	1973-05-24	IT987881B	1975-03-20

103		SU1662484	1971-05-27	SU425408A3	1974-04-25

104	FR2197048A1 -	FR7326982	1973-07-24	FR2197048A1	1974-03-22

105	FR2189472A1 -	FR7319178	1973-05-25	FR2189472A1	1974-01-25

106	PROCEDIMIENTO PARA LA PREPARACION DE NUEVOS COMPUESTOS DE FENAZONIO POLIMEROS.	ES391131	1971-05-13	ES391131A1	1973-07-16

107	Verfahren zur Herstellung von Azofarbstoffen	CH1017565	1965-07-20	CH455088A	1968-04-30	NICKEL HORST DR; SUCKFUELL FRITZ DR; SCHUENDEHUETTE KARL-HEINZ DR

108	A process for the preparation of azo dyestuffs	DEF0043957	1964-09-11	DE1264645B	1968-03-28	NICKEL DR HORST; SUCKFUELL DR FRITZ; SCHUENDEHUETTE DR KARL-HEINZ

109	Verfahren zur Herstellung von neuen Diareno-triazocinen	CH550461	1961-05-10	CH402228A	1965-11-15	BOSSARD WERNER DR; HANS BOSSHARD; WEGMUELLER HANS DR

110	Verfahren zur Herstellung von o-Oxy-azo-verbindungen	CH1049760	1960-09-16	CH400413A	1965-10-15	SUCKFUELL FRITZ DR; DITTMER HELMUT DR; MESSMER ERNST DR

111	Verfahren zur Herstellung von neuen 2,3 : 6,7-Diareno-1-oxa-4,5-diazepinen	CH651960	1960-06-08	CH384750A	1965-02-26	BOSSARD WERNER DR; HANS BOSSHARD; WEGMUELLER HANS DR

112	Process for the production of ú´-hydroxy-azo-naphthalenic compounds	GB3647160	1960-10-24	GB929052A	1963-06-19
o-Hydroxy azo compounds are made by treating a diazotate, in solution or suspension, with a diazonium compound, at least one of the starting components being of the naphthalene series. It is stated that some of the products are new. Reaction is usually effected in a distinctly alkaline solution, e.g. pH 9-12, but may, with some diazotates, occur at pH's of 5-9. Stoichiometrical proportions of reactants are normally used. From a diazotate R-N=N-O(-), and a 1-diazonaphthalene compound, a 2-naphthol dye of formula is obtained, a 2-diazonaphthalene compound yielding a 1-naphthol of formula By-products may be obtained from the action of the alkali on the diazo compound, e.g. and The by-products may be isolated or redissolved and their production controlled by varying the proportions of diazotate and diazonium compound. From a diazonium compound and a diazotate of the naphthalene series, similar dyes are obtained. With some of the 1-naphthol azo dyes thus obtained a second azo group may, by a secondary reaction, enter the molecule in a para position to the resulting hydroxy group. The second coupling may be counteracted by varying the proportions of diazotate and diazonium compound. The diazotates may be derived from carbo- and heterocyclic diazo compounds. Derivatives of benzene, naphthalene, anthracene and dehydrothiotoluidine disulphonic acid are mentioned. Substituents, e.g. sulphonic and carboxylic acid, benzenesulphonate, alkyl, nitro, acylamino, halogen and azo groups, may be present in the diazotates. Advantageously syn-diazotates are used. Specified diazotates include 4-sulphophenyl-syn-and anti and 4-nitro-, 2,5-dichloro-and 2-methoxy-4-nitro-phenyl-anti-diazotates. The diazotates need not be used in the isolated form. Thus the diazonium compounds, from which they are derived, may be converted, in situ, to diazotates by treatment with sodium carbonate or hydroxide. Illustrative of diazo compounds, to be so treated, are those derived from aniline, 4-benzoylamino-aniline, 4-aminoazobenzene-41-sulphonic acid, dehydrothiotoluidine-disulphonic acid, 6-nitro-2-naphthylamine-4,8-disulphonic acid and 1-aminoanthraquinone. Diazonium compounds specified include aniline, 4-nitroaniline, 2-naphthylamine-4-sulphonic and 3-carboxylic acids, 1-naphthylamine-3,6,8-trisulphonic acid, 1-aminoanthraquinone, 4-aminoazobenzene-41-sulphonic acid and 8-aminoquinoline-5-sulphonic acid. Numerous examples are provided of the preparation of the dyes, a variety of colours being obtained, and their use in dyeing wool.
113	FR1292492A -	FR864182	1961-06-07	FR1292492A	1962-03-26

114	Colorants azoïques et leur procédé de préparation	BE576038	1959-02-24	BE576038A	1959-06-15	SUCKFULL FRITZ; NICKEL HORST; SCHMIDT KARL HEINZ; SCHUNDEHUTTE KARL HEINZ

115	Способ получения оптически отбеливающих соединений	SU588046	1957-12-19	SU117995A3	1958-11-30	AZIM KOMAR SARKAR; VILYAM ADAMS; DENNIS ARTUR

116	A process for producing metal-containing polyazo	DEF0018240	1955-08-20	DE1044316B	1958-11-20	SUCKFUELL DR FRITZ; PUETTER DR ROLF; NICKEL DR HORST

117	A process for producing copper-o, o'-Dioxyazoverbindungen	DEF0018236	1955-08-19	DE1017717B	1957-10-17	PUETTER DR ROLF; SUCKFUELL DR FRITZ; NICKEL DR HORST

118	Improvements relating to dyestuffs and processes of dyeing and printing	GB2927049	1949-11-15	GB666462A	1952-02-13
Textiles are dyed or printed by applying, from a vat or sulphur dyebath or in an alkaline discharge paste, a compound containing two aromatic nuclei, one nucleus containing a diazotizable amino group or a nitro group reducible in an alkaline bath to a diazotizable amino group and the other nucleus containing a hydroxyl group capable of directing coupling with a diazo compound, and the colour is subsequently developed by treatment with nitrous acid. In examples: (1) the textile material is dyed from a bath containing meta-nitranilide of beta-oxynaphthoic acid and sodium sulphide, with or without the addition of a sulphur brown dyestuff, and the colour is developed by passing the material into a bath containing sodium nitrite and acetic acid; (2) the material is dyed from a bath containing meta-nitranilide of beta-oxynaphthoic acid, caustic soda and sodium hydrosulphite, with or without Caledon Yellow G, and then developed as in (1); and (3) cotton is dyed with Direct Fast Yellow 4GL, printed with a paste containing meta-nitranilide of beta-oxynaphthoic acid, potash, gum tragacanth and sodium formaldehyde sulphoxylate, dried, steamed and then developed in a bath containing sodium nitrite and acetic acid to give a red discharge effect on the yellow ground.
119	Способ получения черных азокрасителей, пригодных для изготовления копировальных бумаг	SU385485	1949-08-10	SU90327A1	1949-11-30	VOLFGANG RIKHTER

120	Способ получения моноазокрасителей	SU341348	1945-10-29	SU66875A1	1945-11-30	GERSHZON G I; MITELMAN S I; NUSBAUMER S A

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