http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3635840-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate | 1969-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1972-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa852d5f0c3a478d244e84ac94518578 |
| publicationDate | 1972-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3635840-A |
| titleOfInvention | Polymerization catalyst |
| abstract | A catalyst is prepared by calcining and thus coactivating with an oxygen-containing gas for a period of time to activate the same, to obtain disclosed results, the ingredients of a mass obtained by bringing together an organometal component, chromium oxide or a compound convertible by calcination to chromium oxide, in combination with at least one material selected from the group consisting of silica, alumina, zirconia, and thoria and a vanadium chelate component, e.g., vanadium acetylacetonate. The catalyst is suited to the polymerization of olefinic materials, especially 1-olefins and/or dienes to form polymers and copolymers, e.g., polyethylene. The catalyst permits polymerization of an alpha olefin to produce polymers having a considerably lower melt index at constant conditions than that earlier obtained with a catalyst omitting the vanadium acetylacetonate and productivities per unit of catalyst which are considerably greater than those obtained when the vanadium acetylacetonate is not present during coactivation. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4504592-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022267485-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4435551-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11584806-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4382020-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0039971-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0072075-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4451573-A |
| priorityDate | 1969-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.