http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003119662-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a526baeaf0a6e90f4a91d4dbfd619756 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 |
| filingDate | 2002-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34207d0d7ef8fff3ee6d67c6f6d176b8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc7ca078d53460165238b8c75fea61da http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae2503dc84306af856404a28c10b156b |
| publicationDate | 2003-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2003119662-A1 |
| titleOfInvention | Transition metal catalysts for diene polymerizations |
| abstract | This invention is based upon the unexpected discovery that certain catalyst systems which are comprised of (A) a transition metal compound selected from the group consisting of iron (II) compounds, iron (III) compounds, cobalt (II) compounds, cobalt (III) compounds, and nickel (II) compounds; (B) a ligand selected from the group consisting of certain azopyridines and certain iminopyridines; and (C) methylalumoxane can be used to catalyze the polymerization of diene monomers, such as 1,3-butadiene and isoprene, into polymers, such as high cis-1,4-polybutadiene rubber. Some representative examples of azopyridines that can be utilized in the catalyst systems of this invention include 2-phenylazopyridine, 4-methyl-2-phenylazopyridine, and 2,6-diphenylazopyridine. The subject invention more specifically discloses a process for synthesizing a polybutadiene rubber which comprises polymerizing 1,3-butadiene at a temperature which is within the range of about 10° C. to about 100° C. in the presence of a catalyst system which is comprised of (A) a transition metal compound selected from the group consisting of iron (II) compounds, iron (III) compounds, cobalt (II) compounds, cobalt (III) compounds, and nickel (II) compounds; (B) an azopyridine ligand selected from the group consisting of 2-phenylazopyridine, 4-methyl-2-phenylazopyridine, and 2,6-diphenylazopyridine; and (C) methylalumoxane. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111587259-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109851700-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11746167-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2653502-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102775539-A |
| priorityDate | 1999-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 245.