http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104558336-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-649 |
| filingDate | 2013-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104558336-B |
| titleOfInvention | A kind of propylene copolymer and preparation method thereof |
| abstract | The invention discloses a kind of preparation method of the high ethylene content propylene copolymer of low energy consumption, this method uses gas phase multi-temperature zone technology, in the presence of the ziegler natta catalyst of high activity, and the second external electron donor is selectively added, propylene or propylene and ethene is carried out propylene homo and copolyreaction at least three continuous zones of convergency of one or more polymer reactors.The method of the invention uses gas phase multi-temperature zone technology, ensures most of polymerization activity of catalyst in low-temperature space, and the heat exchange efficiency of heat exchanger is improved in high-temperature region.In addition, selectively add the second external electron donor, the ingredient of solid catalyst of the titaniferous of second external electron donor and ziegler natta catalyst is coordinated, the ethene reactivity ratio in polymerisation can be effectively improved, ethylene concentration in reducing gas phase composition while guarantee product high ethylene contents, so as to the production capacity for reducing energy consumption, meeting existing apparatus. |
| priorityDate | 2013-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 198.