http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2666724-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6668d5e39a99167774b6c9af2406cb25 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F136-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F136-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-06 |
| filingDate | 2018-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e0cc403138b0a56d2ab6fa80a8867d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_854f4d8e42bcb9a74016680de8eb7821 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5361c3913408a10b2c22796e88f97069 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a5e559191810f622f0fe3d2e0b4f85e8 |
| publicationDate | 2018-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2666724-C1 |
| titleOfInvention | Method for producing butadiene polymers or butadiene copolymers with styrene with low content of 1,2-units in butadiene part |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to the production of butadiene and butadiene-styrene rubbers with a low content of 1,2-units in the butadiene part and a narrow molecular weight distribution. Process for the preparation of such polymers is carried out in a hydrocarbon solvent medium using an initiating system containing an aluminum and an organolithium compound and a polar agent, as the organolithium compound use R 1 Li, where R 1 an alkyl group, as the polar agent, an aminoalkyl ester of the formula: n n n n where R 2 -R 8 – alkyl group or hydrogen, as an organoaluminum compound use an organoaluminum compound AlR 9 R 10 R 11 , where R 9 -R 11 – alkyl group or hydrogen, wherein the molar ratio of aminoalkyl ether : organolithium compound is [0.01÷1.0]:1.0, and the molar ratio of organoaluminum compound: organolithium compound is [0.01÷1.0]:1.0. n EFFECT: achieved high polymerization activity of the initiating system based on the organolithium compound, aminoalkyl ether and organoaluminum compound and the preparation of polymers of butadiene and copolymers of butadiene with styrene containing 1,2-units in the butadiene part of 5–15% and a narrow molecular weight distribution M w /M n =from 1 1/5 to 1 ½. n 1 cl, 1 tbl |
| priorityDate | 2018-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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