| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_40fc364085af1c34f209d93fa31acf47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7bf5d8def52eeea1e13c6388e7f05378
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc50bd9afd8398f804906530628d080b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fc96ce667664d54fa9c2176d06d2a00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_149fd55a0a379fc0e6840b9fc7f7da80 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02 |
| filingDate |
2010-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4781ca1133d7c8e52d5509232098ecbc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f90648c95c3b6490e77be47848d9621e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26486a615ccbdd150729ea32beff879a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c034d75da676e6b1fa7a61838bb94dc7 |
| publicationDate |
2010-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2010107478-A1 |
| titleOfInvention |
Methods of preparing a polymerization catalyst |
| abstract |
A method comprising (a) contacting a support and a chromium-containing compound to form chromium-containing support, (b) heat treating the chromium-containing support in an oxidizing atmosphere to form a treated support, (c) contacting the treated support with carbon monoxide to form a CO-contacted support, and (d) contacting the CO-contacted support with hydrogen to form a catalyst. A method comprising oxidizing a chromium-treated support to form a polymerization catalyst, contacting the polymerization catalyst with carbon monoxide to form a reduced polymerization catalyst, contacting the reduced polymerization catalyst with hydrogen to form an activated polymerization catalyst, and contacting the activated polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form a random copolymer. A method comprising reducing a polymerization catalyst comprising Cr(VI) to form a polymerization catalyst comprising Cr(II), and treating the polymerization catalyst comprising Cr(II) with hydrogen. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8697599-B2 |
| priorityDate |
2009-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |