| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3b3f4f8df8306f743faf2d4a4af65e1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ef75c16b3a33dd3572c1329b913cff2b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb7f26190215843bfc254ba87d3f40d1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00212 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-1836
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-22 |
| filingDate |
2011-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5a44ed746655556775e6e78a8251cb4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68f8f5b452a8dd225a99484fb29b15af |
| publicationDate |
2019-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10253113-B2 |
| titleOfInvention |
Method for activation of chromium containing catalyst precursor for polymerization and the resulting polymerization catalyst |
| abstract |
Method for activation of chromium containing catalyst precursor for polymerization and improved polymerization catalyst resulting The instant invention relates to an activation of a polymerization catalyst precursor by heat treatment comprising a support material and a catalyst precursor deposited thereon in a fluidized bed activator and to the use of the activated polymerization catalyst in the manufacture of polyolefins. The Method is performed in a cylindrical activator ( 1 ) arranged vertically comprising tubular activator walls, a fluidization gas inlet ( 2 ) near the bottom, a fluidization gas outlet ( 3 ) near the top and a heat exchange jacket ( 4 ) outside the tubular activator walls, wherein the heating jacket covers the complete outer surface of the walls of the activator. The catalyst prepared by that method is improved with respect to its minor content of impurities and causes less interruptions during gas-phase polymerization or slurry polymerization either in stirred vessel or loop. |
| priorityDate |
2010-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |