http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SE-7603163-L
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e5302e08e56037ff7bc5c9b6fcc29f9 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-0815 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 |
| filingDate | 1976-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_449ed1e14ce6b7a5b2c37e5b95980829 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e68315f44b94fbda01de7d6eb311c96 |
| publicationDate | 1976-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SE-7603163-L |
| titleOfInvention | PROCEDURE FOR PREPARING ETHENEN POLYMERS |
| abstract | 1531544 Polymerization of ethylene UNION CARBIDE CORP 27 Feb 1976 [10 March 1975 14 Jan 1976] 7852/76 Heading C3P Solid copolymers of ethylene having a density of 0À90 to 0À941 gm./c.c. and a melt index greater than zero and less than 2 are prepared by copolymerizing ethylene with a C 3 -C 6 alpha olefine in an amount to provide 1 to 15% of the alpha olefine in the polymer at a pressure of less than 1000 p.s.i.g. in a fluidized bed of particles of a thermally activated supported catalyst having a particle size of 50 to 200 microns and containing 0À05 to 3% by weight of Cr, at least part of which is in the hexavalent state, 1À5 to 9À0% by weight of Ti and 0À0 to 2À5% by weight of F, at least a portion of both the Cr and the Ti being in the form of oxides. The support may be, e.g., silica, alumina, zirconia or thoria. The olefin may be propylene, butene-1, pentene-1 or hexene-1. In the examples ethylene is copolymerized with butene-1 in the presence or absence of hydrogen in a fluidized bed of a catalyst prepared by reacting silica with an aqueous solution of CrO 3 , subsequently with tetraisopropyltitanate and then in some cases with (NH 4 ) 2 SiF 6 , followed by thermal activation. Reference has been directed by the Comptroller to Specification 1,429,174. |
| priorityDate | 1975-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.