http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20170049598-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ea1bd1db35580c5b52e931ac2b7fc01 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G05D27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-785 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G05D11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 |
| filingDate | 2015-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2eba14f0b495e2efb7f405810bcf010 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e70b58156032482dc5ad3dde54221b4 |
| publicationDate | 2017-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20170049598-A |
| titleOfInvention | Method to minimize the transition time from one polymer grade to another polymer grade in a polymerization plant |
| abstract | The present invention relates to a method of reducing polymer waste out of the transition time and / or specification, in a continuous polymerization process performed in a polymerization plant, upon transition from a first polymer grade to a second polymer grade, The polymerization plant comprises one or more back-mixing reactors, At least one processing agent selected from the group consisting of one or more monomers and a catalyst, a cocatalyst, a polymerization initiator, a comonomer, a chain transfer agent, a branching agent and a solvent, and a combination of two or more thereof Wherein the concentration of at least one of the one or more added processing agents in the feed introduced into the one or more reverse mixing reactors is greater than the initial value associated with the first polymer grade To a final value associated with the second polymer grade, - the first polymer grade and the second polymer grade may comprise one or more parameters relating to the molecular weight of the polymer to be produced and / or one or more parameters relating to the composition of the polymer to be produced and / Or one or more parameters related to the amount of polymer produced, One or more intermediate values are adjusted while the concentration of the one or more added processing agents varies from the initial value to the final value, and one or more, preferably most, more preferably all of the one or more intermediate values Wherein an absolute difference between the initial value and the median value of each of one or more of the initial value and one or more, preferably most, and more preferably all of the initial value is greater than the final value and the initial Wherein the one or more intermediate values are greater than the absolute difference between the values of the steady-state correlation between the residence time in the at least one reverse-mixing reactor and the input and output of the reactor and / ), And this method is performed without performing dynamic modeling. |
| priorityDate | 2014-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 83.