| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-0004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00539 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-1862
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-1818
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-1809
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-1827 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-01 |
| filingDate |
2018-08-28^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47788cfd3d490de04e86514c170c594f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08d5b2e493439b692393699217d58422
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90995afa1975c2d6ad80a6aa663321ec |
| publicationDate |
2019-02-28^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2019062463-A1 |
| titleOfInvention |
Method for producing polyolefin |
| abstract |
A method for producing a polyolefin is provided. The method includes steps of polymerizing an olefin in a first gas-phase polymerization tank to obtain polyolefin-containing particles, transferring the polyolefin-containing particles to a second gas-phase polymerization tank through a transfer pipe, and polymerizing an olefin in the presence of the transferred polyolefin-containing particles in the second gas-phase polymerization tank. A connection place between the first gas-phase polymerization tank and the transfer pipe is higher than a connection place between the second gas-phase polymerization tank and the transfer pipe. 130 kPa≥P 1 −P 2 ≥0 is satisfied, where P 1 represents the pressure in the first gas-phase polymerization tank and P 2 represents the pressure in the second gas-phase polymerization tank. |
| priorityDate |
2017-08-29^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |