| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ab07e6fd3ec0599bfaeaf1f9b2f5742 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate |
1981-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1983-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_555c697dba52b977f27bb2c87cbedc1a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c30bbb55845855c8acd0b1fbd5381b4b |
| publicationDate |
1983-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4371455-A |
| titleOfInvention |
Supported catalyst for olefin polymerization |
| abstract |
A method for the preparation of supported Ziegler-Natta catalysts comprising the reduction of a transition metal compound with a magnesium containing reducing agent. The reducing agent is prepared in the presence of a magnesium chloride support utilizing an anhydrous and oxygen-free mixture of magnesium halide and magnesium metal, slurried in a hydrocarbon solvent. A halogenated hydrocarbon is added to activate the magnesium-containing reducing agent. Thereafter the transition metal compound is mixed with the slurry. The resulting solid is washed with a hydrocarbon solvent to eliminate residual transition metal compounds. The resulting washed solid is an active supported Ziegler-Natta olefin polymerization catalyst. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5449732-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5869570-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6730752-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009146167-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6730750-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009146167-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5504132-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5504131-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5539044-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0840057-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4518757-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6815011-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7012046-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6399676-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6576732-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6765053-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9500563-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022140743-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002198116-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3363857-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010113715-A1 |
| priorityDate |
1981-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |