http://rdf.ncbi.nlm.nih.gov/pubchem/patent/PL-161960-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e960aa6ad2ba6401030159343ebe68 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 |
| filingDate | 1989-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_587306a1a6e7df699271a93b02c2a899 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_161ba25a095995dc206c5a4c0099f7d2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b6b6473dbc30380a2a6b8dcf99180a2 |
| publicationDate | 1993-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | PL-161960-B1 |
| titleOfInvention | Method of polymerizing and copolymerizing olefins |
| abstract | A method of polymerization or copolymerization of olefins in the presence of a catalyst comprising a transition metal compound belonging to group IV B of the periodic table and alumoxane, characterized in that a catalyst made of A) a transition metal compound of general formula 1 is used, wherein R1 represents a cyclopentadienyl group optionally substituted with C1-C4-alkyl or an indenyl group, R2, R3 and R4 independently represent a cyclopentadienyl group optionally substituted with C1-C4-alkyl, an indenyl group or a halogen atom, where two of the symbols R1 - R4 denote indenyl groups, they are optionally linked via C 1 - C 4 -alkylene, and at least one of the symbols R2, R3 and R4 represents a halogen atom, M represents a zirconium or hafnium atom, k is 1 or 2, 1, m and n are 0, 1 or 2, ak + l + m + n is 4, B) alumoxane, C) water and D) aluminum trialkyl, where the molar ratio of aluminum atoms from alumoxane to water is 0.5 to 50, the number of aluminum atoms coming from zt swarmylaluminum represents 30-99% of the total number of aluminum atoms derived from alumoxane and trialkylaluminum, and the ratio of aluminum atoms derived from alumoxane and trialkylaluminum to transition metal atoms is 20 to 1 x 104. PL |
| priorityDate | 1988-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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