| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b3a304fc555c6faf9d4ce01083c26a6b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-638 |
| filingDate |
1990-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1996-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7130845ed4c28d39c7a8fec064fe73a6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3cd065c20d574d5a87dc6545dbfb0f26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62e9e9f1f69f184ec79fe4308dc38df8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f8f3cd0e0338512b5a596a3e48be08a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2f7bbf29b9fe42afc8c430fdc5f016c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e67d9c2658c74a634a64e9efe35e0c96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c75c08d09419667cc2a00c46ca73355 |
| publicationDate |
1996-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0376936-B1 |
| titleOfInvention |
A ziegler-Natta catalyst component |
| abstract |
In the preparation of a supported procatalyst intended for the polymerization of olefins, particles are formed of magnesium dihalide and alcohol. The particles are reacted with an organic compound of a metal from the groups I-III, and the resulting particulate product is activated by means of a titanium and/or vanadium compound and optionally a donor, and optionally a prepolymerization is carried out for the activated particles. A problem of such a method is how to form particles of magnesium dihalogenide and alcohol having a structure advantageous for the polymerization of olefins. The problem has in the present invention been solved so that the particles are formed by spray crystallizing (spray freezing) a mixture of magnesium dihalide and alcohol to complex particles of magnesium dihalide and alcohol. The hydroxyl content of the particles so obtained is much greater than earlier, which results in a much more active procatalyst than the preceding ones. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021064080-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021064078-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021064083-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021064081-A1 |
| priorityDate |
1988-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |