http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104231139-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F136-08 |
| filingDate | 2013-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104231139-B |
| titleOfInvention | Polyisoprene rubber and continuous polymerization method thereof |
| abstract | The invention relates to polyisoprene rubber and a continuous polymerization method thereof. The continuous polymerization method includes the steps: in the presence of an organic solvent and a catalyst, isoprene monomers are subjected to a polymerization reaction in a continuous polymerization device comprising a plurality of series-connection reaction kettles; the catalyst is obtained through mutual contact of a component A, a component B, a component C and a component D in an inert organic solvent, the component A is neodymium carboxylate, the component B is aluminum alkyl, the component C is a halide, the component D is a conjugated diene, and the aluminum alkyl in the component B is aluminum alkyl having the general formula of AlR3, wherein R is a C5-C10 alkyl; the content of cyclohexane in the organic solvent is not less than 50 wt%; the method also includes the aluminum alkyl is added into a first reaction kettle, wherein the molar ratio of the added aluminum alkyl to neodymium carboxylate in the first reaction kettle is 1-15:1. The method can obtain the polyisoprene rubber having the content of a cis-1,4- structure in the structure unit of greater than 98.5 mol%, and the per-pass conversion rate of the continuous polymerization reaction is 95.3% or more. |
| priorityDate | 2013-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.