http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009186994-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b61dcd103d8773fdbc2c54babf807c33 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate | 2007-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bae5c96cf0d51cc6aa5787b73700ff9a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53cf6481578d8314f1b9370beb37d856 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1198381b33bfb436eb9c10ad9f0b489b |
| publicationDate | 2009-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2009186994-A1 |
| titleOfInvention | Olefin polymerisation catalyst |
| abstract | The present invention relates to particulate olefin polymerisation catalyst components comprising an alkaline earth metal, a compound of a transition metal and an electron donor, characterized in that the catalyst particle size distribution of the catalyst component is essentially monomodal and has a SPAN value below 1.2, where SPAN is defined as: (Particle diameter at 90% cumulative size)−(Particle diameter at 10% cumulative size)/(Particle diameter at 50% cumulative size). The particulate olefin polymerisation catalyst components of the present invention are provided by a process which comprises preparing a solution of a complex of an alkaline earth metal and an electron donor by reacting a compound of said metal with said electron donor or a precursor thereof in an organic liquid reaction medium, reacting said complex in the solution form with a compound of a transition metal to produce a dispersion, wherein the dispersed phase predominantly contains the alkaline earth metal in said complex, and solidifying said dispersed phase to obtain said catalyst component, and is characterized in that a second organic liquid medium is added to the reactor after mixing the alkaline earth metal complex with the transition metal compound. |
| priorityDate | 2006-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 245.