http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112707991-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-649 |
| filingDate | 2019-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112707991-B |
| titleOfInvention | A kind of ethylene-propylene random copolymer and preparation method thereof |
| abstract | The invention belongs to the field of olefin polymerization, and relates to an ethylene-propylene random copolymer and a preparation method thereof. The method includes: polymerizing propylene and ethylene in the presence of a catalyst and hydrogen under olefin polymerization conditions to obtain the ethylene-propylene random copolymer; wherein the catalyst contains a solid component, an alkyl aluminum compound and any A selected external electron donor compound, the solid component contains the reaction product of the following components: (i) a magnesium-containing compound; (ii) a titanium-containing compound; and (iii) an internal electron donor; wherein the internal donor The electron body includes an internal electron donor compound a and an internal electron donor compound b, and the internal electron donor compound a is a diol ester compound. The ethylene-propylene copolymer of the present invention has the advantages of low melting point and less xylene soluble matter, and does not contain plasticizer, and is more favorable for application in the fields of food packaging, medical care and the like. |
| priorityDate | 2019-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 354.