http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2748114-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9f54e08002a7fb005065961427d317bf |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-42 |
| filingDate | 2020-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73e33529962599a6eb83448d63773d05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20ac7a66e384f93a1162a30b1fbbee9c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ecf6e9e7fbaccb699f62b1accc690e1c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d02f5e9a655151a11847619d41afd0c5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5fe297925dc2a2f93855beb2392f537e |
| publicationDate | 2021-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2748114-C1 |
| titleOfInvention | Method of producing a {2,4-di-tert-butyl-6-[(tert-butylimino)methyl]phenolate} pre-catalyst for vanadium(v) oxodichloride for the synthesis of epdm/epm ethylene-propylene rubbers |
| abstract | FIELD: hydrocarbon process industry.SUBSTANCE: The invention relates to a method for producing a {2,4-di-tert-butyl-6-[(tert-butylimino)methyl]phenolate} oxodichloride of vanadium(V) for the synthesis of ethylene-propylene diene monomer rubbers, while preparing the ligand by mixing 3,5-di-tert-butyl-2-hydroxybenzaldehyde and tert-butylamine in an alcohol solution in the presence of catalytic amounts of acetic acid at room temperature, the reaction mixture is stirred for a day, evaporated to dryness, the solid residue is recrystallized from hexane, then the resulting 2.4-di-tert-butyl-6-[(tert-butylimino)methyl]phenol is dissolved in hexane and added dropwise in an inert atmosphere to a solution of vanadium oxytrichloride in hexane, stirred for a day, evaporated to dryness and washed with 1.5 ml of anhydrous hexane in an inert atmosphere, then dried at a pressure of 0.5 mbar for an hour.EFFECT: technical result consists in simplifying the method for producing the {2,4-di-tert-butyl-6-[(tert-butylimino)methyl]phenolate} vanadium(V) oxodichloride precatalyst, increasing its yield, which, when used as part of the catalytic system, provides production of synthetic EPDM rubbers with a yield of up to 23551 g/g V, viscosity from 45 to 82 Mooney units, the ethylene content in rubbers is from 54.7 to 57.7 wt%, ENB (for EPDM) from 3.8 to 5.7 wt%.1 cl, 1 tbl, 6 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2785003-C1 |
| priorityDate | 2020-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 80.