| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2bc2da4bfebe79540ef2f4dac5deb0b4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_553191529ca89e14aa81cb5c1f94aa66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3bbe29fa291017546e74202760e5a548
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_697c92dbb7fc5a8c15ee1bde7e142ddc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-0004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-0061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00212 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-1809
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-2435
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G85-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-00 |
| filingDate |
2008-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2012-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83dc50d0da415a634ae1c6be950386ac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45e0c772e033af8ee82924510c1ecd41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca2880109e644dec5077d44807a8af04 |
| publicationDate |
2012-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8097686-B2 |
| titleOfInvention |
Multistage process for the polymerization of olefins |
| abstract |
A process for the multistage polymerization of olefins in a sequence of an upstream slurry reactor and a downstream gas-phase reactor, the transfer of polymer from the upstream reactor to the downstream reactor comprising the following steps:n a) heating the slurry of polyolefin particles to evaporate the liquid polymerization medium; b) separating the polyolefin particles from the obtained gaseous phase in at least a separation chamber; c) transferring the polyolefin particles to said downstream reactor by means of a couple of lock hoppers working intermittently in parallel, where one of said lock hoppers is continuously filled with the polymer coming from said separation chamber, while simultaneously the other one is continuously pressurized by means of a gas comprising the reaction mixture coming from said downstream reactor. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20160077702-A |
| priorityDate |
2007-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |