| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3b3f4f8df8306f743faf2d4a4af65e1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-07 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34 |
| filingDate |
2016-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_258a41c01ecd220cdccdf6735457367b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cad5ec531d3255da16be9099cf1c58a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e4f041eee1ef5730e04c996ea5956c1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c2f7607f141b3552f6ae59d7da014cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b427d00755c38b60ae213c46fd5e5e14 |
| publicationDate |
2019-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2692265-C2 |
| titleOfInvention |
Methods for continuous gas-phase polymerisation |
| abstract |
FIELD: chemistry.SUBSTANCE: invention relates to a continuous method of producing homopolymers or copolymers of ethylene containing polymerisable ethylene or copolymerisable ethylene and one or more olefins. Method is carried out in the presence of a chromium catalyst in a gas-phase polymerisation reactor which is equipped with a gas circulation pipeline for sampling: reactor gas from a reactor, feeding reactor gas into a heat exchanger for cooling and feeding reactor gas back to the reactor. Polymerisation is carried out at temperature of 30–130 °C and at pressure of 0.1–10 MPa with addition of an ester of an aliphatic carboxylic acid having 8–24 carbon atoms.EFFECT: technical result is obtaining polyethylene with good optical, mechanical and process properties and low content of gels.15 cl, 1 tbl, 6 ex |
| priorityDate |
2015-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |