http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-291887-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/C09B11-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-22 |
| filingDate | 1927-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1928-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-291887-A |
| titleOfInvention | The manufacture of new triphenyl methane dyestuffs |
| abstract | 291,887. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). March 11, 1927. Triarylmethane dyes are obtained by condensing two molecules of an aromatic o-oxycarboxylic acid with one molecule of 4-benzylamino-3- sulphobenzaldehyde or a salt theneof and oxidizing the resulting leuco compound. According to an example, 2 mols. of o-cresotinic acid are condensed with 4-benzylamino-3-suphobenzaldehyde. The dyestuff obtained by oxidation dyes wool a clear violet when after chromed. 4-Benzylamino - 3 - sulphobenzaldehyde is obtained according to the process of Specification 17135/98 by condensing benzyl-o-sulphanilic acid, 4-tolylhydroxylamine-2-sulphonic acid and formaldehyde and saponifying the resulting benzylidine compound. |
| priorityDate | 1927-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.