http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112011018-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-86 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F293-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F293-00 |
| filingDate | 2019-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112011018-B |
| titleOfInvention | A kind of method for preparing bimodal distribution star-branched butyl rubber by slurry method |
| abstract | The invention provides a method for preparing bimodal distribution star-branched butyl rubber by a slurry method, which belongs to the application field of chemical technology. The poly(styrene-conjugated diene) block polymer was synthesized by anionic polymerization technology, and the four-arm star-shaped block polymer was obtained by coupling with silicon tetrachloride; Continue to feed HCl gas for 3-12 hours to obtain a functionalized four-arm star-shaped branching agent containing silicon and chlorine; dissolve the functionalized four-armed star-shaped branching agent containing silicon and chlorine in a solvent, add isobutylene, isobutylene, isobutylene, etc. Pentadiene, the temperature is lowered to below ‑60℃, the main initiator and co-initiator are mixed and aged, added to the system, polymerized under stirring for 3‑30min, a terminator is added to terminate the reaction, vacuum distillation, and the sample is vacuum dried, A bimodal distribution star-branched butyl rubber sample was obtained. Compared with the prior art, the bimodal distribution star-branched butyl rubber provided by the present invention has lower Mooney stress relaxation and intrinsic viscosity, and has better processing performance. |
| priorityDate | 2019-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 131.