| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e28032b4dae483384b2f28cb3ee45bc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S534-01 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B35-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B35-465 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P1-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P3-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B35-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B31-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B35-50 |
| filingDate |
1982-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1984-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6492acd71ab2491700dadd72a959db7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69e7caaf078af26f9968f1191a0a18a8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddaf78861e180932cdb641e2db0425f0 |
| publicationDate |
1984-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4485042-A |
| titleOfInvention |
Dyestuff containing at least three azo bridges |
| abstract |
Leathers can be advantageously dyed with water-soluble polyazo dyestuffs having, in the form of the free acid, the formula <IMAGE> wherein A is a member of the benzene, naphthalene or heterocyclic series; B has the formula <IMAGE> n is the number 1 or 2; m is a number from 1 to 4; X is hydroxyl or amino; Y is hydroxyl or amino but X differs from Y; Z is hydroxyl or amino unsubstituted or substituted by alkyl having 1 to 4 carbon atoms, alkanoyl having 1 to 4 carbon atoms or by a moiety of the formula <IMAGE> R1 is hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms or alkoxyalkoxy having 3 to 7 carbon atoms; and R2 and R3 independently of one another are each hydrogen or alkyl having 1 to 4 carbon atoms. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5171848-A |
| priorityDate |
1981-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |