| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b9ff2988b0c12145a439b1a8945d0e6d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-901 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F136-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F136-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52 |
| filingDate |
1999-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11e20f9a64984bc394e4753e89f996a3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ef0e51faaaf40bf1986c5bc17a14efa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5417f78d371c4cc5275390dce6820808
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62c6a20b5f75dbb1d9e27277d680f195 |
| publicationDate |
2000-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2000178310-A |
| titleOfInvention |
Molecular weight control of gas-phase polymerized polybutadiene using rare earth catalyst |
| abstract |
(57) Abstract: Provided is a method for controlling the molecular weight, molecular weight distribution, or both of polybutadiene produced in a gas phase process using a butadiene monomer and a rare earth catalyst. The method comprises adjusting or manipulating at least one of the following: (a) polymerization temperature; (b) butadiene partial pressure; (c) cocatalyst concentration in the product in the reactor; Or the ratio of cocatalyst aluminum metal to catalyst rare earth metal; (d) the choice of cocatalyst; and (e) the residence time of the rare earth catalyst when polymerization is taking place. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005068041-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007526386-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009013420-A |
| priorityDate |
1998-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |