http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2733752-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1df93ed61a1025e3fffb791365ebe6e4 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6228 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-01 |
| filingDate | 2018-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46466f5120b5a376dc0b6fd24736faf5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9af1ad6d535fe0dc657e4e44bae2fc3c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bca4dca687fc4fff13c8abd02920bde2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59a9fdd917b0660c5c06948583283dac http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_193af1eef93ba73017d75db26f189d5f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3e49338a1557017cd5696afd935071f |
| publicationDate | 2020-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2733752-C1 |
| titleOfInvention | Gas phase olefin polymerisation method |
| abstract | FIELD: chemistry.SUBSTANCE: invention relates to a gas-phase method of producing heterophase compositions of a propylene copolymer. Described is a method of producing heterophase compositions (RAHECO) of a propylene copolymer, comprising a propylene (RACO) copolymer (RACO) and propylene elastomeric copolymer (BIPO). Method is carried out in a reactor containing two interconnected polymerisation zones: an up-flow reactor and a down-stream reactor. Growing polymer particles in the reactor move through the first of said polymerisation zones, an upflow reactor, in a fast fluidisation mode in the presence of propylene and ethylene and/or alpha-olefin to form a static copolymer (RACO) of propylene. Then, the polymer particles leave the upflow reactor and enter the second of said polymerisation zones, a downflow reactor through which they move down in the compacted form in the presence of propylene and ethylene and/or alpha-olefin, where concentration of ethylene and/or alpha-olefin in a downflow reactor is higher than in an upflow reactor to form an elastomeric copolymer (BIPO) of propylene. Then, the polymer particles leave the downflow reactor and are repeatedly fed into the upflow reactor thereby creating a circulation of the polymer between the upflow reactor and the downstream reactor.EFFECT: technical result is improvement of method of producing RAHECO in polymerization reactor MZCR with high output volume, high reliability and better ability to produce RAHECO with high melt flow index and BIPO component with higher molecular weight.10 cl, 1 dwg, 2 tbl, 4 ex |
| priorityDate | 2017-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.