| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_553191529ca89e14aa81cb5c1f94aa66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_822805121f9055b999dbfa0558b8ff2d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c653b55d5ebc4f7dd6cf93909d431b8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b5db568285963fb1360a96996be90b0f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_153ecbc48476f52fade80ef90664727b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2bc2da4bfebe79540ef2f4dac5deb0b4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_645b99b226309d4b2815e2615b0f7fe4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00166
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00173
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00164 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-2435
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-18 |
| filingDate |
2008-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2012-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da680086e617c6c41c2899e312d8b68b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26db1d7bfe24bb9fb22a0643a0cd9fd6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad7581e2231e2263b4a568b6609e3202
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dff88eda4a0cde7d0230432f99cfbb2d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_22cf5f0777f8a7a7b96913dca650f3c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ab2186da347aa91eb7f044923f7b8e9 |
| publicationDate |
2012-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8198383-B2 |
| titleOfInvention |
Process for the gas-phase polymerization of olefins |
| abstract |
A process for the gas-phase polymerization of α-olefins carried out in two interconnected polymerization zones, wherein the growing polymer particles flow through the first of said polymerization zones (riser) under fast fluidization conditions, leave said riser and enter the second of said polymerization zones (downcomer) through which they flow downward in a densified form, the process being characterized in that: (a) the gas mixture present in the riser is totally or partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid stream LB having a composition different from the gaseous mixture present in the riser; (b) the ratio R between the flow rate F p of polymer circulated between said downcomer and said riser and the flow rate LB of said liquid being adjusted in a range from 10 to 50. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9073027-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10947331-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10844148-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10844147-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10858458-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10781273-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3723898-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11548957-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10696759-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10703832-B1 |
| priorityDate |
2007-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |