| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3b3f4f8df8306f743faf2d4a4af65e1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65916
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-943
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2207-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6592
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F297-083
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6592
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 |
| filingDate |
2006-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3da797232e648aaf000158dccfc4452 |
| publicationDate |
2017-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-PI0612170-B1 |
| titleOfInvention |
process for polymerization of olefins |
| abstract |
process for the polymerization of olefins. The present invention describes a multi-step process comprising the following steps: step a) polymerizing propylene and optionally one or more monomers chosen from ethylene or α-olefins of the formula wherein t t = 1; is a C 2 -C 10 alkyl radical in the presence of a catalytic system supported on an inert support, comprising: i) one or more metallocene compounds of formula (i). ii) an alumoxane or a compound capable of forming an alkylmetalocene cation; and optionally iii) an organo metal compound; step b) contacting, under polymerization conditions, in gaseous, propylene or ethylene phase with one or more α-olefins of formula ch ~ 2 ~ = cht, wherein t is hydrogen or a C 1-1 alkyl radical - and optionally with an unconjugated diene in the presence of the polymer obtained in step a) and optionally in the presence of an additional organoaluminium compound; provided that no homopolymer is produced; wherein the compound of formula (i) is described in the patent application. |
| priorityDate |
2005-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |