http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004014902-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F297-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-04 |
| filingDate | 2001-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f2b2988f5ee8dc289c03a5a98a7f524 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c1ecfc9515ea878594131c54eba08e2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2621918ff888200a9e1fa03b89386b5 |
| publicationDate | 2004-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2004014902-A1 |
| titleOfInvention | Method for making seletively hydrogenated block copolymers of vinyl aromatic hydrocarbons and conjugated dienes |
| abstract | Disclosed is a method for making selectively hydrogenated block copolymers of vinyl aromatic hydrocarbons and conjugated dienes comprising: a) anionically polymerizing vinyl aromatic hydrocarbons and conjugated dienes to produce block copolymers with living chain ends; b) terminating the living chain ends; to produce a terminated block copolymer, with a member from the group consisting of an alcohol, hydrogen, and mixtures thereof, to prepare a terminated block copolymer; and c) contacting the terminated block copolymers with hydrogen at a temperature of from 20 to 175° C. in the presence of a catalyst prepared by combining a cobalt carboxylate with an aluminum alkyl, wherein: (i) if the polymer is terminated with an alcohol and the alcohol is a linear alcohol, the linear alcohol is used to terminate the living chain ends in an amount such that the alcohol: living chain end molar ratio is from 0.05 to 1.2: (ii) if the polymer is terminated with an alcohol and the alcohol is a branched alcohol, the branched alcohol is used to terminate the living chain ends in an amount such that the alcohol: living chain end molar ration is from 0.05 to about 3.0: an (iii) if the polymer is terminated with an alcohol and the alcohol is a mixture of a linear alcohol and a branched alcohol, the linear alcohol is used to terminate the living chain ends in an amount such that the linear alcohol: living chain end molar ration is from 0.05 to 1.2. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008187316-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7959363-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006183045-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8883943-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009232503-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7583900-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7465105-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007003193-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8937138-B2 |
| priorityDate | 2000-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 144.