Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_38ab42be08dacabdfa0a7d3842a10de3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eec19c18115f3b92ff1d1f2ab988f7d5 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-10 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-545 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B60C1-0016 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B60C1-0025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B60C1-00 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-06 |
filingDate |
2017-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2019-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_932845557782f197df84aab890d101ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c97fbc5d1e08c9121f90e230184d69a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74b36eca4d6632534bbb2b150ea30e8c |
publicationDate |
2019-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-10280243-B2 |
titleOfInvention |
Copolymer of ethylene and a conjugated diene, and process for its production |
abstract |
A copolymer of ethylene and a conjugated diene is provided, in which ethylene content in the copolymer is greater than 20 mol %, the copolymer has a glass transition temperature between −110° C. and −90° C., and continuous methylene sequence lengths (MSL) in the copolymer are in a range of 12-162 methylene units. A method for producing the copolymer, comprising copolymerizing ethylene and a conjugated diene in the presence of a catalyst system to obtain the copolymer is also provided, in which the catalyst system comprises a heterocyclic-fused cyclopentadienyl rare-earth metal complex, an organoboron salt compound and an organoaluminum compound, wherein the heterocyclic-fused cyclopentadienyl rare-earth metal complex is represented by the structural formula: |
priorityDate |
2017-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |