| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-658
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-656
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-646
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate |
1990-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54c33e2c1c51dc5c3dc99aa0728148e0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e14efa483b11cf6dcffc3d8a0f415fd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d91335dcf9336495eb871fd0f852f88d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74de4da6cf8c3f9efc365e83c3cc838d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cbe1e36d82b38f888ad03de8c4a1c72c |
| publicationDate |
1991-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H0372509-A |
| titleOfInvention |
Olefin polymerization catalyst and preparation of ethylene polymer therewith |
| abstract |
PURPOSE: To prepare a catalyst having a high catalytic activity and suitable for producing an ethylene polymer having a narrow mol.wt. distribution and high flowability by compounding a specific solid catalyst component contg. trivalent titanium with an organoaluminum compd. n CONSTITUTION: A titanium compd. of formula I (wherein R 1 is a 1-20C hydrocarbon group; X is a halogen atom; and 0<a≤4) is reduced with an organomagnesium compd. in the presence of an organosilicon compd. having an Si-O bond and an org. porous polymer to give a solid product, which is treated with an ester compd. and then reacted with titanium tetrachloride or a mixture thereof with an electron-donating compd., thereby giving a solid catalyst component contg. trivalent titanium and shown by formula II. The obtd. catalyst component is compounded with an organoaluminum compd. to prepare a catalyst for olefin polymn. n COPYRIGHT: (C)1991,JPO&Japio |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007217712-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100428937-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4865127-B2 |
| priorityDate |
1989-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |