| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-63912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6392
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-63916
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-943 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5442
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6392
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-63916
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-63912 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6392
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-639 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-602
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6592
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/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-642 |
| filingDate |
1993-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1994-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4b1ac9a92832139e036251bb651c5a0 |
| publicationDate |
1994-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5373072-A |
| titleOfInvention |
Supported catalyst for 1-olefin(s) (co)polymerization |
| abstract |
This invention relates to a supported catalyst composition useful in the polymerization of olefins and to a method for its production. The invention particularly relates to the use of undehydrated silica gel containing from about 6 to about 20 per cent by weight adsorbed water as the catalyst support material. The catalyst is formed by first reacting a trialkylaluminum compound with a metallocene, and subsequently reacting the resulting material with the undehydrated silica gel. The resulting supported metallocene-alumoxane catalyst has a level of activity comparable to that of conventionally made supported catalysts which are achieved at active metal loadings which are reduced from the loadings used in the previously known metallocene-alumoxane catalysts by at least 20%, and preferably 50%. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5869570-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6417130-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6713425-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7012046-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6815011-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6025448-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6037296-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6730752-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6730750-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6538080-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6740617-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6051525-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6140432-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6153551-A |
| priorityDate |
1992-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |