http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108164646-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-03 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52 |
| filingDate | 2016-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108164646-B |
| titleOfInvention | Method for preparing polyisoprene by steam cracking of C5 naphtha fraction |
| abstract | The invention relates to the field of catalytic polymerization, and discloses a method for preparing polyisoprene by steam cracking of C5 naphtha fraction, which comprises the following steps: sequentially carrying out crystallization, filtration and distillation on the steam cracking C5 naphtha fraction to obtain a cyclopentadiene-removed product; and then under the condition of polymerization reaction, the product of the cyclopentadiene removal is in contact reaction with a rare earth catalyst composition, wherein the rare earth catalyst composition contains a rare earth metal organic compound, an alkylating agent and a halogen-containing compound, and the rare earth metal organic compound has a structure shown in a formula (I). The method provided by the invention can obtain a high-yield polyisoprene product from steam cracking C5 naphtha fraction rich in isoprene, and the obtained polyisoprene product has the advantages of high cis-1, 4-structure content and narrow molecular weight distribution. |
| priorityDate | 2016-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 111.