http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-805548-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B51-005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B51-00 |
| filingDate | 1956-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1958-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-805548-A |
| titleOfInvention | Dyestuffs of the ª‡-nitroso-ª‰-naphthol series |
| abstract | The invention comprises dyes containing an anionic component of the formula <FORM:0805548/IV (c)/1> wherein R is an alkyl, aralkyl, cycloalkyl, or aryl group, a heterocyclic radical, an NH2 group (where at least one of the R's in each molecule is other than NH2), the radical of a primary or secondary amine, a carboxylic or sulphonic imide, an alcohol, or phenol, n is 1 or 2, and II represents the valence of the complex bound ion (different organic components may be attached to the same iron atom), natural or polyamide fibres dyed or printed therewith, and also a process of making such dyes by reacting iron-supplying compounds with ortho-hydroxy-nitroso-naphthalene compounds free from sulphonic groups which contain in their molecule once or twice the group R-SO2- in which R is as above or mixtures of such substances in presence of acid-combining substances. Other substituents which do not form complexes may be present, e.g. halogen, oxyalkyl, alkyl, alkoxy, nitro, acylamino and/or sulphonamido. Iron supplying substances specified are iron sulphate or chloride, Mohr's salt, and iron tartrate. Promoters are tartaric, citric, and salicylic acids. The usual acid combining agents are specified, and a salt, such as sodium chloride, may be added for complete precipitation. The products dye silk, leather, wool, polyamides, and polyurethanes, and colour lacquers, fats, waxes, plastics, and organic liquids. In examples, a mixture of ferrous sulphate, potassium sodium tartrate, the condensation product of formaldehyde and naphthalene-2-sulphonic acid and either sodium carbonate, or triethylamine, or 3-methoxypropylamine is reacted in water with 1-nitroso-2-hydroxynaphthalene-6-sulphonic acid dimethylamide or with a mixture of 1 - nitroso - 2 - hydroxynaphthalene - 6 - sulphonic acid dimethylamide, and the corresponding diethylamide and pyrrolidide. Other starting materials are listed. |
| priorityDate | 1955-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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