http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SG-11201908972P-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6a8e7b2c8216a44f40263abcd81fbfb4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-06 |
| filingDate | 2018-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_131f0578626e9f49ac891f9f51a19be5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f922575df531d176c0482576a0a433a |
| publicationDate | 2019-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SG-11201908972P-A |
| titleOfInvention | Continuous synthesis of an ethylene and butadiene copolymer |
| abstract | CONTINUOUS SYNTHESIS OF AN ETHYLENE AND BUTADIENE COPOLYMER The present invention relates to a process for the synthesis of an ethylene/butadiene copolymer, characterized in that the process is continuous and comprises the following concomitant steps: a. Feeding at least one stirred polymerization reactor with a mixture of ethylene, butadiene, hydrocarbon-based solvent and catalytic system allowing the formation of cyclic trans -1,2-cyclohexane units in the polymer chain with a mole ratio of ethylene to the sum of the ethylene and butadiene monomers, defined by QnE/(QnE + QnB), with QnE the molar flow rate of ethylene and QnB the molar flow rate of butadiene, ranging from 0.5 to 0.99; the concentration of ethylene and butadiene monomers in the polymerization reaction medium being at least 10% by weight relative to the total weight; the operating pressure of the reactor is greater than or equal to the saturated vapour pressure of the polymerization reaction medium; b. Recovering the ethylene/butadiene copolymer, this copolymer comprising, statistically distributed, ethylene units, butadiene units and trans -1,2-cyclohexane units, the molar fraction of ethylene units in said copolymer being greater than or equal to 50%, relative to the total number of moles of ethylene, butadiene and trans -1,2-cyclohexane units. |
| priorityDate | 2017-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.