http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1250694-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d8a790abb5432b50c087c33f7320024d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F136-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00 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/C08F2-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F136-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-06 |
| filingDate | 1985-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1989-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fbacafce5f9a59a552ca4b17baacd011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03166b0af0ed2992754c6a65537f896b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59d9ab4371ed45fb640065f07ac5ca9f |
| publicationDate | 1989-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1250694-A |
| titleOfInvention | Continuous method for preparing high cis-1,4 polybutadiene |
| abstract | ABSTRACT OF THE DISCLOSURE A method for preparing high cis-1,4 poly-butadiene by a continuous process which involves the continuous polymerization of 1,3-butadiene in solution under adiabatic conditions; is provided. The method comprises the steps of: (I) feeding continuously to a single agitated polymerization reactor: (a) a monomer stream comprising 1,3-butadiene in a hydrocarbon solvent; (b) a preformed .pi. allyl catalyst stream formed by admixing a car-boxylated metal oxy borate compound represented by the formulae (RCOOMO??B or (RCOOMO??B-OR' wherein R and R' are alkyl radicals containing from 7 to 17 carbon atoms and M is nickel or cobalt, an organo aluminum compound, an alcohol, a small amount of 1,3-butadiene and a hydrocarbon solvent; and (c) a cocatalyst stream comprising a boron trifluoride complex with an alcohol; and (II) with-drawing continuously from said reactor high cis-1,4 polybutadiene at the same rate as said monomer, preformed catalyst and cocatalyst streams are fed to the reactor. In an additional embodiment of the invention, a method of preparing a preformed ? allyl catalyst having improved stability and solubility in hydrocarbon solvent is provided. High cis-1,4 polybutadiene polymers produced by the method of the invention have good green strength and tack and may be used as tire rubbers and impact modifiers for plastics. |
| priorityDate | 1984-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 131.