| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2410-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-642 |
| filingDate |
1998-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f1ae97d011af6d6e62d8d92a9672235
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78429789d37374423adb1cb675a9e18c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_edf78f36dce5fd407d62304e2c0425ab |
| publicationDate |
2002-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6495638-B2 |
| titleOfInvention |
Process to produce polymers |
| abstract |
A process is provided to produce a catalyst system. The process comprises blending a first component and a second component. The first component of the catalyst system comprises chromium on a support. The amount of chromium on the support is from about 0.05 to about 5 weight percent based on the weight of the support. The support comprises fluorided alumina. The support has a surface area from about 200 to about 550 square meters per gram and a pore volume from about 0.7 to about 2.5 cubic centimeters per gram. The first component is activated at a temperature in the range of about 500° C. to about 900° C. The second component is a transition metal halide catalyst. A process comprising polymerizing ethylene or copolymerizing ethylene and at least one other monomer using the catalyst system to produce ethylene polymers is also provided. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009088543-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009088537-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009124768-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8399580-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7956139-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8119553-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8450437-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006155082-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8637691-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8222174-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011201833-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7799721-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8759459-B2 |
| priorityDate |
1998-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |