http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-993599-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-02 |
| filingDate | 1963-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-993599-A |
| titleOfInvention | Improvements in the purification of alpha-olefin polymers |
| abstract | Catalyst residues of vanadium and organo-aluminium compounds contained in an alphaolefin hydrocarbon copolymer are removed from a solution of the copolymer by mixing the solution at a temperature between 0 DEG and 200 DEG C. for no more than one minute under conditions of high shear agitation with sufficient of an aqueous mineral acid solution containing 0.01 to 0.8% acid by weight to give a ratio of equivalents of acid to total gram atoms of vanadium and aluminium of at least 1: 1, and separating the resulting aqueous phase containing the catalyst residue from the copolymer solution. The other monomeric unit in the copolymer may be derived from another alpha-olefin or an olefin containing more than one carbon-carbon double bond. The Specification contains long lists of copolymers and catalyst components. Exemplified copolymers are of ethylene/propylene/and 1,4-hexadiene. The catalyst residues in these copolymers is derived from diisobutyl aluminium monochloride and vanadium oxytrichloride. The solvents may be hydrocarbons or halogenated hydrocarbons. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4992529-A |
| priorityDate | 1962-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.