http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11117989-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78ca80ad4b743c901ec136b21263f093 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2410-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-06 |
| filingDate | 2017-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf5853bdb8eb598f8d7daa5aa19dad19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eae3b466f5cd3bbdebd6c13f0a2d6dae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_deb3bbc98886d34dcbf4e7750de7de21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53bd7ee9311be1a55716b8f57bcc44e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b827a2a114ab844b6461f41bdcef652c |
| publicationDate | 2021-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-11117989-B2 |
| titleOfInvention | Process to prepare procatalyst for polymerization of olefins |
| abstract | The present invention relates to a process for the preparation of a procatalyst suitable for preparing a catalyst composition for olefin polymerization, said process comprising the steps of: Step A) providing or preparing a Grignard compound; Step B) contacting the Grignard compound with a silane compound to give a first intermediate reaction product being a solid support; Step C) activating said solid support, comprising two sub steps: Step C1) contacting the solid support obtained in step B) with at least one first activating compound and a second activating compound; and Step C2) a second activation step by contacting the activated solid support obtained in step C1) with an activating electron donor; to obtain a second intermediate reaction product; Step D) reacting the second intermediate reaction product obtained in step C) with a halogen-containing Ti-compound, optionally an activator and at least one internal electron donor in several sub steps to obtain said procatalyst. The invention moreover relates to a procatalyst, a catalytic system comprising said procatalyst and to a process to prepare polyolefins using said catalyst system and the polyolefins obtained therewith. |
| priorityDate | 2016-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 211.