http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103374089-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-08 |
| filingDate | 2012-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103374089-B |
| titleOfInvention | The method of catalyzer in removing ethylene-alpha-olefin copolymer polymers soln and the preparation method of multipolymer |
| abstract | The present invention relates to the method for the catalyzer in removing ethylene-alpha-olefin copolymer solution, containing ethylene-alpha-olefin copolymer, organic solvent and catalyzer in copolymer solution, catalyzer contains aluminum alkyl catalyst and vanadium compound Primary Catalysts, the method comprises: water contacts with copolymer solution by (1), obtains the first mixture; (2) by pH adjusting agent, the pH value of step (1) gained first mixture is adjusted to 4-9, obtains the second mixture; (3) centrifugation, from step (2) gained second mixture, be separated removing precipitation, wherein, based on the volume of copolymer solution, the addition of described water is 0.1-20 volume %.The invention still further relates to the preparation method of ethylene-alpha-olefin copolymer, adopt aforesaid method to remove this containing the catalyzer in the solution of ethylene-alpha-olefin copolymer.Present method removes the Be very effective of the remainder catalyst in copolymer solution, and cost is low. |
| priorityDate | 2012-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.