http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5994477-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b828305495e1cdb63947a3a18aa633d1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C19-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-04 |
| filingDate | 1997-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1999-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2bec07e7707c3c3a18506958952a34f8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e258d28beea98c9c15f6fd760294be27 |
| publicationDate | 1999-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5994477-A |
| titleOfInvention | Selective hydrogenation method of living polymer having olefinic double bond |
| abstract | There is provided a method for selectively hydrogenating a living polymer having olefinic double bonds. A monomer having at least one conjugated double bond, optionally together with an olefinic monomer, is polymerized in the presence of an alkyllithium polymerization initiator, to give a living polymer. This olefinic living polymer is reacted with a hydrocarbon compound, to give a deactivated living polymer and a hydrocarbon lithium compound. The double bonds within the conjugated dien units of the polymer are selectively hydrogenated in the presence of a monocyclopentadienyltitanium compound which is under the influence of the hydrocarbon lithium compound. The hydrocarbon, which acts as a deactivator of the living polymer, terminates the anion polymerization occurring due to an activated anion of the living polymer and thus, prevents the intermolecular cross-linking of the polymers so that the gelation of the polymers does not occur. In addition, the hydrocarbon lithium serves as a reducing agent for the hydrogenating catalyst, monocyclopentadienyltitanium compound, so that a high selectivity and hydrogenation efficiency can be obtained without accurate adjustment of Li/Ti mole ratio. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011021852-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010288045-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6951906-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1104774-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9346719-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007121039-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009131597-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6410657-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2048164-A2 |
| priorityDate | 1996-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 186.