| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_18a8284bc1d41fe092e46c249d6220be |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-1397 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34 |
| filingDate |
2013-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9a4e01b3a92dc6cf94b8c2482117cd6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a57e185eae7bbb061cfd0680618b02b5 |
| publicationDate |
2015-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2015119538-A1 |
| titleOfInvention |
Gas phase polymerisation of ethylene |
| abstract |
The invention relates to a process for the production of polyethylene by gas phase polymerisation of ethylene in the presence of a supported chromium oxide based catalyst which is modified with an amino alcohol wherein the molar ratio of amino alcohol:chromium ranges between 0.5:1 and 1:1 , wherein the support is silica having a surface area (SA) between 250 m 2 /g and 400 m 2 /g and a pore volume (PV) between 1.1 cm 3 /g and less than 2.0 cm 3 /g and wherein the amount of chromium in the supported catalyst is at least 0.1 % by weight and less than 0.5 % by weight. |
| priorityDate |
2012-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |