http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6894132-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_11de0c126edf4fc9a9b236b439c15658 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-06 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-659 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-06 |
| filingDate | 2003-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2005-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3cb341c308d61342fe33b0d4d5c62327 |
| publicationDate | 2005-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6894132-B2 |
| titleOfInvention | Polyolefin production |
| abstract | Provided is a catalyst for the polymerization of olefins of general formula:n nR″(C 4 R′ m C 5 C 4 R′ n )XMeQn nwherein X is an hetero-atom ligand with one or two lone pair electrons selected from the elements of Group VA or VIA which can be substituted or non-substituted: (C 4 R m ′C 5 C 4 R n ′) is a symmetrically substituted, 3,6-substituted fluorenyl; R′ is hydrogen or hydrocarbyl radical having from 1-20 carbon atoms, a halogen, an alkoxy, an alkoxy alkyl or an alkylamino or alkylsilylo radical, each R′ may be the same or different and m and n independently are 1, 2 3 or 4, with the proviso that the bilateral symmetry is maintained; R″ is a structural bridge between X and the (C 4 R′ m C 5 C 4 R′ n ) ring to impart stereorigidity; Q is a hydrocarbyl radical having 1-20 carbon atoms or is a halogen; Me is a Group IIIB, IVB, VB, or VIB metal as positioned in the Periodic Table of Elements; and Me can be in any of its theoretically possible oxidation states.n n Also provided are olefin monomers (particularly propylene) polymerized using these catalysts to form syndiotactic/atactic block polymers of high molecular weight and comprising at least 70% of syndiotactic triads. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8017705-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010069588-A1 |
| priorityDate | 1999-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 79.