http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-369191-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/C09B31-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B31-20 |
| filingDate | 1930-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1932-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-369191-A |
| titleOfInvention | Process for the manufacture of azo dyestuffs |
| abstract | Trisazo dyes are made by diazotizing an aminodisazo body of the formula R--N=N--M1--N=N--M2 where R = a residue of p salicylic acid or a derivative thereof or of a 1 : 8-dioxynaphthalene sulphonic acid or a derivative thereof, M1 and M2 = residues of further diazotizable middle components and coupling in the case where R = salicylic acid with a 1 : 8-dioxynaphthalene-sulphonic acid and when R = a 1 : 8 - dioxynaphthalene sulphonic acid with salicylic acid. They are fast to light and are unaffected by brightening and are not boiled off. They may be used for dyeing viscose, may be after treated in substance or on the fibre with copper and chromium compounds and dyeings may be developed with diazotized p-nitraniline. In examples the following dyestuffs are specified: (1) p-aminosalicylic acid --> 1 - naphthylamine - 7 - sulphonic acid --> a -naphthylamine --> 1 : 8 - dioxynaphthalene - 4 - sulphonic acid, (2) acetyl - 1 : 4 - naphthalenediamine-6-(7-)-sulphonic acid --> a -naphthylaminesulphaminic acid --> salicylic acid (hydrolysed) --> 1 : 8 - dioxynaphthalene - 4 - sulphonic acid, (3) acyl - 1 : 4 - naphthalenediamines or sulphonic acids thereof --> salicylic acid (hydrolysed) --> middle component --> 1 : 8-dioxynaphthalene sulphonic acid. |
| priorityDate | 1929-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.