| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00292
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00274
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00256
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-0004 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-382
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-0055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-06 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34 |
| filingDate |
2003-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7fedc74a7c7e0a1da86832cb9ca1057f |
| publicationDate |
2003-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2003199646-A1 |
| titleOfInvention |
Process for polymerization of alpha-olefin |
| abstract |
The object of the present invention is to provide a polyolefin polymerization method which prevents fine particles of polymer from scattering from a fluidized bed in a gas phase polymerization reactor. This object is achieved by a process for polymerization of α-olefin in multi-stage polymerization process and in at least two serially arranged polymerization reactors including a gas phase polymerization reactor, the process comprising; n drawing out polyolefin particles from a polymerization reactor, and n transferring the polyolefin particles into the interior of fluidized bed of a gas phase polymerization reactor of the next stage. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10081000-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1310969-C |
| priorityDate |
2002-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |