http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-387222-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b04f5b6a02051c94d6eaf190b751ed2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B35-366 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B35-366 |
| filingDate | 1932-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1933-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-387222-A |
| titleOfInvention | The manufacture of new polyazodyestuffs |
| abstract | Polyazo dyes are made by coupling the tetrazo compounds of diaminomono-, dis- or polyazodyestuffs or the diazo compounds of monoaminodis- or polyazodyestuffs with two or one equimolecular proportions respectively of a hydroxycarbazole coupling component, the components being selected so that at least one contains a group inducing solubility in water. The following dyestuffs are described in examples: (1) 2-naphthylamine-4 : 8-disulphonic acid --> 1-naphthylamine --> 3-amino-4-cresolmethylether --> 1-hydroxycarbazole-3 : 6-disulphonic acid (greyish-blue to blueish-black shades on cotton, silk, viscose, and chrome-leather), (2) 2 - naphthylamine - 7 - sulphonic acid --> p-xylidine --> 1-amino-2-naphtholethylether - 6 - sulphonic acid --> 1-amino-8-hydroxycarbazole-3 : 6-disulphonic acid, (3) 2 - hydroxycarbazole - 7 - sulphonic acid \sM benzidine --> H acid \sM aniline, (4) p-nitraniline --> g -acid (reduced) \sQ 1-amino-8-hydroxycarbazole - 3 : 6 - disulphonic acid (2 mols.). Other components specified are 1 : 8-dihydroxycarbazole-3 : 6-disulphonic acid, 2-hydroxy-3-aminocarbazole (made by N-acetylating 2-hydroxycarbazole, nitrating, reducing and saponifying), 2-hydroxycarbazole 3-carboxylic acid, 7 - hydroxy - a - a - dinaphthocarbazole - 7<1>-sulphonic acid (from the hydrazine of 1-naphthylamine-7-sulphonic acid, and 1 : 7-dioxynaphthalene by Bucherer's method) and 7-hydroxy - a - a - dinaphthocarbazole - 4<1> : 8<1> - disulphonic acid (prepared similarly from the hydrazine of 1-naphthylamine-4 : 8-disulphonic acid). Specification 371,827 is referred to. |
| priorityDate | 1931-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.