| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_114e4423ec77cbc8dab9d0a98909704e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-61912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-61925
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-40 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-1616
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2295 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6192
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-619 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-654 |
| filingDate |
1997-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60344380117aadb8006a1f80682244ce
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99eb02ebf41af462f752a0b30b95f617 |
| publicationDate |
1999-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5962360-A |
| titleOfInvention |
Process for the preparation of a magnesium halide supported metallocene catalyst |
| abstract |
The present invention is directed to a process for the preparation of a solid magnesium halide supported metallocene catalyst having a transition metal selected from the group consisting of IIIB, IVB, VB and VIB of the periodic table, which comprises preparing a slurry of magnesium metal in an electron donor solvent; heating the slurry of magnesium metal to 0° C. to 50° C. for a period of 10 minutes to 4 hr.; adding a dihaloalkane compound to said slurry to obtain a homogeneous solution of a support (solution A); separately preparing a solution of a metallocene compound in the same electron donor solvent as solution A (solution B); heating the solution B to 0° C. to 50° C. for a period ranging between 10 minutes and 1 hr., adding solution B to solution A over a period ranging between 10 minutes to 2 hrs. while maintaining the temperature in the range of 0 to 50° C. to obtain a homogeneous solution; cooling the resultant homogeneous solution to room temperature under an inert atmosphere; pouring the reaction mixture into a liquid hydrocarbon medium in which all the components will be partly or completely insoluble to precipitate the solid catalyst; separating the solid catalyst precipitated, washing the solid catalyst with a hydrocarbon solvent; and drying the solid catalyst under vacuum at a temperature ranging between 0 to 50° C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104059183-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104059183-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004024684-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004024684-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100362024-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006199728-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115636887-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7732365-B2 |
| priorityDate |
1997-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |