http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-458423-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/C09B29-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-32 |
| filingDate | 1935-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1936-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-458423-A |
| titleOfInvention | Manufacture of insoluble azo-dyestuffs |
| abstract | Insoluble azo dyes are made by coupling a diazotized nitroamino compound of the benzene series, which may be halogen substituted, with a py-tetrahydro-1-alkyl or 1-aralkyl-3-oxyquinoline of the formula <FORM:0458423/IV/1> (X = H, alkyl or halogen), neither of the components containing a COOH or SO3H group. They dye cellulose esters mainly in blue shades which are fast to acids and may be discharged white. Dyes from the following components are specified in examples: diazo components; 4 - nitroaniline, 2 - chloro - 4 - nitroaniline, 2 : 6-dichloro - 4 - nitroaniline, 2 : 4 - dinitroaniline, 6 - bromo- or 6 - chloro - 2 : 4 - dinitroaniline; coupling components: 1 - n - butyl - 3 - oxy - 7-chloro- or 7 - methyltetrahydroquinoline, 1 benzyl-3-oxytetrahydroquinoline, 1-benzyl- or 1-ethyl-3-oxy-7-methyl-tetrahydroquinoline. Tetrahydroquinoline compounds of the above formula are made by condensation of the appropriate alkyl- or aralkylaniline with epichlorhydrin at a raised temperature whereby ring closure occurs. |
| priorityDate | 1934-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.