| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d0e7527ba4a31f2fe2a97fd814621339 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F11-005 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-02 |
| filingDate |
2005-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20fb33211f0d9007cf908e9179d7ea73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a9a88562a9414afee10884d8d85a7e3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_953a9df5909ba94cc04287154d62ef02 |
| publicationDate |
2006-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1713747-A1 |
| titleOfInvention |
Heterogeneous chromium catalysts |
| abstract |
The present invention relates to a heterogeneous chromium catalyst system for the polymerisation of ethylene and/or alpha olefins prepared by the steps of: (a) providing a silica-containing support, (b) treating the silica-containing support with a chromium compound to form a chromium-based silica-containing support, (c) activating the chromium-based silica-containing support, (d) chemically reducing the activated chromium-based silica-containing support to produce a precursor catalyst, (e) reacting the reduced precursor catalyst with a tridentate ligand compound to obtain a catalyst and (f) optionally activating the catalyst issued from step (e) with a cocatalyst. |
| priorityDate |
2004-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |