http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-886368-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0235f5aeeff44e5b1733138b721f5c06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate | 1960-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1962-01-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-886368-A |
| titleOfInvention | Improvements in soluble catalysts for ethylene-alpha-olefin copolymer rubbers |
| abstract | Rubbery copolymers of ethylene with from 15 to 90% by weight of an alpha-olefin of the formula CH2-CHR, in which R is an alkyl radical of 1 to 10 carbon atoms, are made by copolymerizing a mixture of ethylene and the alpha-olefin in the chosen proportions in the presence of a catalyst substantially completely soluble in the reaction medium and formed by the admixture of vanadium tetrachloride, or vanadyl trichloride, or mixtures thereof, with one or more organo-aluminium compounds having the formula Al R1n X3-n in which n is 1 or 2, R1 is any saturated alkyl, aryl, alkaryl or aralkyl hydrocarbon radical of 1 to 12 carbon atoms, and X is chlorine or bromine, and the molar ratio of aluminium to vanadium in the catalyst is from more than 5:1 to 50:1. The organo-aluminium compound may be a reaction product formed from a mixture of AlR13 and AlX3 in which the molar ratio of AlR13 to AlX3 is from 1:2 to 2:1. The polymerization may be effected in bulk or in the presence of an organic solvent or diluent, e.g. a petroleum distillate fraction, or benzene, or toluene. The monomers may be added continuously or portionwise. Specified alpha-olefins are propylene, and 1-butene. The organo-aluminium compound may be diethyl aluminium chloride, diisobutyl aluminium bromide, ethyl aluminium dichloride, dodecyl aluminium dibromide, isobutyl aluminium dibromide, or mixtures thereof. Specifications 856,733, 856,736 and 856,737 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3546133-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5714554-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5637665-A |
| priorityDate | 1959-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.