http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110372813-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-545 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-54 |
| filingDate | 2019-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110372813-B |
| titleOfInvention | Catalyst composition for preparing polyethylene wax by catalyzing ethylene polymerization and application thereof |
| abstract | The invention discloses a catalyst composition for preparing polyethylene wax by catalyzing ethylene polymerization, which is characterized in thatThen, the catalyst comprises a main catalyst, a cocatalyst and a chain transfer agent; the main catalyst is a metallocene rare earth metal compound and has a structural formula (I): wherein Ln is a rare earth metal; a is a sulfur atom or an oxygen atom; r 1 Is an alkyl or aryl group of 1 to 6 carbon atoms; x 1 And X 2 Is one of alkyl, alkynyl, trimethylsilyl, alkoxy, benzyl, cyclopentadienyl, indenyl, fluorenyl and halogen F, Cl, Br and I, which are the same or different from each other; the cocatalyst is an alkylaluminoxane reagent and/or an organoboron reagent; the chain transfer agent is an aluminum reagent and/or an alkyl zinc reagent. The catalyst composition is particularly useful for catalyzing the polymerization of ethylene to produce low molecular weight polyethylene, such as polyethylene wax; and the molecular weight of the obtained polymer is controllable, and the molecular weight distribution is narrow. |
| priorityDate | 2019-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 152.