| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3a5173a7d063a9f70ca7b5e86fc23863 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-914
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-913 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-136
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D455-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-38 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D455-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-136 |
| filingDate |
1981-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1982-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e3b033b697e3141ef89a9f3cc503fe7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b94685f205a3e7a7b17b4c0ff0bd2ba8 |
| publicationDate |
1982-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4363503-A |
| titleOfInvention |
Pyridine color formers |
| abstract |
Novel 4-aryl-or heteroaryl-2,6-bis[(substituted-amino)phenyl]pyridines which are useful as color formers in pressure-sensitive carbonless duplicating systems and thermal marking systems are prepared by reacting a 2-, 3- or 4-R1R2N-acetophenone with an aryl or heteroaryl aldehyde in the present of ammonia or an ammonia-releasing agent. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9745487-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013049229-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4908447-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9580603-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9399716-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4636818-A |
| priorityDate |
1981-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |