| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52a65b677bbedbe7bf090dd556a7cc43 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-654
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02 |
| filingDate |
1989-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa35dd3423c954c6b3e59021af625dc7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1f81bdd5ed08def9212674e388991a6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5575feb023c017eb5f89839134ad5805 |
| publicationDate |
1991-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H03119003-A |
| titleOfInvention |
Production of catalyst for olefin polymerization |
| abstract |
PURPOSE: To obtain the title spherical catalyst having large particle diameters, providing a polymer having excellent particle diameters and particle size distribution by spraying a Mg compound-alcohol solution to give a spherical solid component, partially drying the component and treating the component with Ti halide and electron donor. n CONSTITUTION: A reactor replaced with nitrogen is charged with anhydrous magnesium oxide and dried ethanol, the mixture thereof is heated and dissolved while stirring to prepare a magnesium compoundalcohol solution shown by the formula MgCl 2 .nROH (R is 1-10C alkyl; n is 3.0-6.0), which is sprayed from a spray nozzle in a spray column kept at -15°C to give a spherical solid component without evaporation of alcohol. Then the component is partially dried and treated with a titanium halide (e.g. titanium tetrachloride) and an electron donor (e.g. diisobutyl phthalate) to give the objective catalyst for polymerization. n COPYRIGHT: (C)1991,JPO&Japio |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6323286-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001354814-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6319991-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018087263-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009073237-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6300415-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0700936-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6268443-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6020279-A |
| priorityDate |
1989-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |