| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1f5feccbbc233b0bfe78927c0169dd14 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6592
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65916
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-941 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-659
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6592
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-654 |
| filingDate |
1990-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b93f8576e1eaf63fbebf04ce18d8ea54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91f6f107ec76afc7f3b90b7411e46c42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acb84b7574df1c612341dd099a1b6812
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62843b65ddc7eecb2dfd1c360300de06 |
| publicationDate |
1998-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2024593-C |
| titleOfInvention |
New carrier catalyst for the polymerization of ethylene |
| abstract |
A problem in the conventional olefin polymerization catalyst systems, the procatalysts of which are based on a solid carrier and a titanium compound and an electron donor on its surface, is that unsufficiently high activities are achieved by the morphology of the carrier. Moreover, the active age of such a catalyst in the polymerization is too short. These problems have now been solved by the olefin polymerization catalyst system according to the invention, the procatalyst of which comprises a solid carrier and a layer on its surface consisting of a titanium compound, a magnesium compound and an electron donor. The advantages of the invention become more emphasized when using monocyclopentadienyl titaniumtrichloride as the titanium compound. |
| priorityDate |
1989-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |