http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1158223-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1c214da6949fa3003839046b4e7fa92b |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate | 1981-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1983-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cdb5b389441f71ef16a206041ee50d9c |
| publicationDate | 1983-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1158223-A |
| titleOfInvention | Catalysts for the polymerization of ethylene, process for preparing them, and polymerization process using these catalysts |
| abstract | PRECISION OF DISCLOSURE Ethylene polymerization catalysts, process for their preparation manufacturing and a polymerization process using said catalysts. The catalysts have the formula: (TiC13,? AlCl3) x (MCl3) x (MgX2) y in which 0.3? x? 30 ? y? 20, M is a transition metal of groups VB and VI B of the Periodic Table and X is a halogen, and are prepared by contacting the syncrisated titanium trichloride coated with aluminum chloride, metal trichloride M and, if applicable, anhydrous magnesium halide and subjecting these chlorides in a grinding step during which the grinding energy ge is at least equal to 3 KWh per kg of solid matter treated. The catalysts allow the polymerization of ethylene under a pressure from 300 to 2,500 bar and at a temperature of 180 ° to 300 ° C, in presence of an activator chosen from hydrides and organo-compounds metals of metals from groups 1 to III of the Periodic Table, the atomic ratio of the activator metal to the sum Ti + M being between 0.1 and 10, and the average residence time of the catalytic system in the polymerization reactor being between 2 and 100 seconds. |
| priorityDate | 1981-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.