| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e83d93ed02bbd6159e99b5a7796e3686 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65927
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F17-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F17-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-659 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6592
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F17-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F17-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-642
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate |
1994-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1997-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b21213597cf3373a05fe16263298c846 |
| publicationDate |
1997-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5646083-A |
| titleOfInvention |
Process for the preparation of a bridged metallocene compound as well as a catalyst component and a process for the polymerization of olefins |
| abstract |
The invention relates to a process for the preparation of a bridged metallocene compound in which: n (I) a bridged double ligand, reacting with a proton acceptor, is converted into a bridged double anion n (II) the double anion is converted into the bridged metallocene compound through reaction with a compound of a group 4b, 5b or 6b metal from the Periodic System of Elements. n reaction (II) being carried out in a liquid dispersant which n a) comprises one or more weak Lewis bases, the conjugated acid of which has a dissociation constant pK a for which the following holds: n n pK.sub.a ≦-2.5, n n b) contains at most 1 mole equivalent, relevant to the metal compound, of strong Lewis base, the conjugated acid of which has a pK a that is higher than -2.5. n The invention further relates to a catalyst component for the polymerization of olefins and a process for the polymerization of olefins and a polyolefin. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6958408-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010311926-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8367787-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6066588-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6177529-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6417405-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008300371-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004044235-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8207281-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6310256-B1 |
| priorityDate |
1991-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |