| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65916
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65908
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2420-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6425
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-658
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65927
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6586
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2295
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-031
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F17-00 |
| classificationIPCInventive |
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/C08F4-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-658
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F17-00 |
| filingDate |
2017-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2020-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-108290973-B |
| titleOfInvention |
Preparation method of metallocene catalyst for preparing polyolefin |
| abstract |
The present invention relates to a preparation method of a high-purity metallocene catalyst capable of providing various selectivity and high activity to polyolefin copolymers. The lithium chloride contained in the compound as a by-product of the reaction is converted into the form of a complex compound, and is efficiently removed in a subsequent step of extracting the catalyst, thereby efficiently preparing a high-purity metallocene catalyst. |
| priorityDate |
2016-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |