http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9481741-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c70172b21c34d620c38b8b3d38c045b2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-651 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6546 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 |
| filingDate | 2013-11-18^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-11-01^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17e706a52af77e581e2bbd968c790842 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac47bd1febcd7a17a6af61c78209221a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c06e2a2f2aa89facfd423b0baf5cfa50 |
| publicationDate | 2016-11-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-9481741-B2 |
| titleOfInvention | High performance Ziegler-Natta catalyst systems, process for producing such supported catalysts and use thereof |
| abstract | A method for making a solid catalyst component for use in a Ziegler-Natta catalyst includes combining in a hydrocarbon solvent a porous particulate support with a hydrocarbon soluble organomagnesium compound to form a suspension. The organomagnesium compound is halogenated followed by addition of an alcohol and the mixture is then reacted with a titanium compound followed by a reaction with at least one diether compound to form the solid catalyst component. Afterwards the reaction product is extracted with a mixture of a titanium compound and a hydrocarbon solvent. The solid catalyst component recovered is combined with an aluminum cocatalyst to form a Ziegler-Natta catalyst system for the polymerization of olefins. In particular, the catalyst system including a diether internal electron donor may have an activity and hydrogen response suitable for the production of propylene polymers having a molecular weight distribution (PI(GPC)) in the range from about 5.75 to about 9. |
| priorityDate | 2012-11-26^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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