| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46ffc67cd29dd51dbd0bc0e335dd3994 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-904
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-901 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-642
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-02 |
| filingDate |
1987-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58be0dedc2265d24741387e3b22e63e3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74dbc4952a3f7e0536b8273eed6ad08d |
| publicationDate |
1990-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4970279-A |
| titleOfInvention |
Process for polymerizing one or more 1-olefins in the gas phase in the presence of pulverulent inorganic material |
| abstract |
A process for (co)polymerizing alpha-olefins in the gas phase in a fluidized bed or mechanically stirred bed reactor using a Ziegler-Natta type catalyst or a heat activated chromium oxide/refractory oxide catalyst wherein the (co)polymerization is carried out in the presence of 0.005 to 0.2 weight %, based on the weight of the (co)polymer bed, of an inert pulverulent inorganic substance (e.g. silica) having a mean particle diameter between 0.5 and 20 microns. The process is capable of being operated at temperatures closer to the softening point of the produced polyolefin than in the absence of the pulverulent solid. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009169782-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5783645-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5510433-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5585184-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009124770-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6066691-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101102852-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101115059-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5376743-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0712871-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5792808-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6391987-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6359083-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006057635-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0614917-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5919877-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5264506-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1042338-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7683146-B2 |
| priorityDate |
1986-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |