http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3612572-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6a8e7b2c8216a44f40263abcd81fbfb4 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-02 |
| 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 | 2020-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3612572-A1 |
| titleOfInvention | Continuous synthesis of an ethylene and butadiene copolymer |
| abstract | The present invention relates to a method for the synthesis of an ethylene and butadiene copolymer, characterised in that the method is continuous and comprises the following concurrent steps: a) feeding at least one stirred polymerisation reactor with a mixture of ethylene, butadiene, a hydrocarbon solvent and a catalytic system, whereby cyclic trans-1,2-cyclohexane units are formed 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 being 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 polymerisation reaction medium being strictly lower than 15 wt.% relative to the total weight; the operating pressure of the reactor being at least equal to the saturation vapour pressure of the polymerisation reaction medium; and the polymerisation temperature being higher than 90°C; b) recovering the ethylene and butadiene copolymer, which copolymer comprises, in statistical distribution, ethylene units, butadiene units and trans-1,2-cyclohexane units, the mole fraction of ethylene units in said copolymer being at least 50% of 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
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID226411687 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID13 |
Total number of triples: 17.