http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6359088-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a526baeaf0a6e90f4a91d4dbfd619756 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F136-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F136-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-54 |
| filingDate | 1999-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_326f23107135760df41e86c607904e5d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a777c42b54bb23428d124ea88a4f5f0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b5cfc8f294d3985475146b51a31e76c |
| publicationDate | 2002-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6359088-B1 |
| titleOfInvention | Calcium-based catalyst system |
| abstract | The process and catalyst system of this invention can be utilized to synthesize a highly random styrene-butadiene rubber having a high trans content by solution polymerization. The styrene-butadiene rubber made by the process of this invention can be utilized in tire tread rubbers that exhibit improved wear characteristics. This invention more specifically reveals a catalyst system for use in isothermal polymerizations which consists essentially of (a) an organolithium compound, (b) a calcium alkoxide and (c) a lithium alkoxide. The subject invention further discloses a process for synthesizing a random styrene-butadiene rubber having a low vinyl content by a process which comprises copolymerizing styrene and 1,3-butadiene under isothermal conditions in an organic solvent in the presence of a catalyst system which consists essentially of (a) an organolithium compound, (b) a calcium alkoxide and (c) a lithium alkoxide. An amine can also be added to the catalyst system to increase the molecular weight (Mooney viscosity) of the rubber. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6608154-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005181935-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7087549-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7285605-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005035599-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010206443-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7884168-B2 |
| priorityDate | 1998-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 654.