http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0799838-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9350e7132a8fb77e0f2ebb5b48d780ab |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6192 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-61916 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-61912 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-616 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-619 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6192 |
| filingDate | 1997-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42df9b520bd28ebc6b17dd600e8b6ea3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_526af9ef433af72cd3a0c6ccd57e3bd1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5867506ef3e0bb0f4a5e6a7631345c0d |
| publicationDate | 1997-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0799838-A1 |
| titleOfInvention | Method for preparing olefin polymerization catalysts |
| abstract | The present invention concerns a procatalyst suitable for preparing olefin polymerization catalysts, a method for preparing said procatalyst and a method for the polymerization of olefins. The procatalyst comprises a support and a transition metal or compound thereof, attached to said support, whereby said transition metal is bonded to the surface of said support via a group having a structure according to the formula R 1 SiR 2 m X (2-m) - (Ia) or the formula Ib -R 1 SiR 2n X (1-n) -(Ib), where m is an integer 0, 1 or 2, n is an integer 0 or 1, X is a hydrolyzable group, capable of reacting with the hydroxy groups or the metal-oxygen-metal bridges of an inorganic oxide, R 1 is a nonhydrolyzable group to which said transition metal or said compound thereof is bonded, and R 2 is a lower alkyl group. The support is prepared most advantageously by reacting an inorganic oxide compound, such as silica or alumina, with a compound having the composition according to the formula R 1 SiR 2 m X (3-m) , where R 1 , R 2 , X and m have the same designations as above. The reaction between the inorganic oxide compound and the compound of formula I is carried out under surface-bond-selective conditions. Advantageously, the substituent R 1 designates a hydrocarbon group according to the formula R 3 R 4 , where R 3 is a cyclopentadienyl group and R 4 is an alkenyl group of 1 - 3 carbons. The invention makes it possible to combine the benefits of homogeneous and heterogeneous catalysts. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7060767-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7211538-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9952949-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0821009-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7148173-B2 |
| priorityDate | 1996-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 126.