http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2098380-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fab82a381f9d0ff8a604cb09e446c878 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate | 1991-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d3e05aa8d6a349219f4410ed027f112 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da76f14c564c8ea1fa82d9b4ddda0ebf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f91a2a068759ce8624bf281697f5ee8e |
| publicationDate | 1992-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2098380-A1 |
| titleOfInvention | Method for the preparation of a polymerizing catalyst component, a polymerizing catalyst component prepared by the method and its use |
| abstract | The invention relates to a process for the preparation of a solid procatalyst composition of catalyst system for the polymerization of olefins wherein a magnesium halide such as magnesium chloride is dissolved and/or suspended into an alkyl ester of a monocarboxylic acid such as ethyl acetate, impregnated to a carrier, treated with an organometallic compound or a silicon compound and thereafter with a transition metal compound. The invention also relates to a procatalyst composition and its use together with a cocatalyst for the polymerization of olefins. The activity has been enhanced according to the invention by the use of a carrier containing hydroxyl groups, which carrier is kept at a temperature of at most about 200 ·C prior to the impregnation so that the hydroxyl groups are retained in the carrier to an essential extent until the impregnation step. The carrier is preferably silica which is treated thermally at 100-200 ·C so that the water present is removed but the hydroxyl groups are retained to a considerable extent. The organometal compound is preferably an aluminumalkyl compound such as triethylaluminum, and the transition metal compound is preferably titanium tetrachloride. |
| priorityDate | 1990-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.