| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c902faf6ae746c51fc8010672fc22894 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S528-906 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C243-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-08 |
| filingDate |
1970-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1972-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6703ef13c14a517a8de41201b2788139
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12fb8106181ff4893069444a5a40b6f8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84d575871fb09314cb29b7a822d6549e |
| publicationDate |
1972-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3682954-A |
| titleOfInvention |
Bis (3-pyrazolidone) compounds |
| abstract |
4,4''-DI-(3-OXO-1-PYRAZOLIDINO)-DIPHENYLMETHANE COMPOUNDS ARE PREPARED BY HEATING THE CORRESPONDING DI-(N- Beta hydrozypropio)-4,4''-dihydrazidodiphenylmethane compositions in an inert organic solvent and in the presence of an acid dehydration catalyst. Valuable polyureas and mixed polyurethane-polyurea products are formed by reacting a polyisocyanate with these compounds or with mixtures of the novel compounds and conventional polyols. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4122183-A |
| priorityDate |
1970-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |