Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1f8713f6ace083308920724981592661 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-943 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65908 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65908 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65927 |
classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-659 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6592 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-645 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-06 |
filingDate |
2002-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2004-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3736a2e031667df645fdfbcc8f3ddd9f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91e536ff534773bed8db04aef92287ed |
publicationDate |
2004-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-6713574-B2 |
titleOfInvention |
Ethylene copolymerization process |
abstract |
This invention is a solution process for the preparation of ethylene-a-olefin-diolefin copolymers comprising contacting ethylene, one or more a-olefin monomer, and one or more cyclic diene monomer, with a catalyst composition comprising a bridged, bis(cyclopentadienyl) zirconium compound having an unsubstituted cyclopentadienyl ligand, a multiply substituted cyclopentadienyl ligand, said ligands bridged by a covalent bridging group containing one or more Group 14 element, and two uninegative, activation reactive ligands and a catalyst activator compound. The invention process exhibits high catalyst activity, high comonomer incorporation and high diene monomer conversion rates and is particularly suitable for the preparation of elastomeric ethylene-propylene or ethylene-propylene-diene monomer elastomers. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003216249-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6875719-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003139284-A1 |
priorityDate |
1998-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |