Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cfc033f059d282fcd915bc8be2ae53f |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-904 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F297-08 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 |
filingDate |
1977-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
1980-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3538cfedf3010904374c6e03f6119842 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a967b48e1fdcb859a67a72683394213 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a175b6a3a0b5f8d58f2cfd88a5600c94 |
publicationDate |
1980-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
CA-1085096-A |
titleOfInvention |
Method for the production of a low density polyethylene |
abstract |
ABSTRACT OF THE DISCLOSURE: In producing a low density polyethylene by copolymerization in slurry state of ethylene and an .alpha.-olefin with use of a catalyst consisting of a supported titanium component and an organoaluminum compound, a certain amount of ethylene is subject to pre-polymerization in the presence of said catalyst prior to the copolymerization. Successively, the copolymerization of ethylene and an .alpha.-olefin is effected in a two-step process, in which a copolymerization ratio of .alpha.-olefin to ethylene is kept at a low level in the first step and raised to a high level in the second step thereby to obtain a low density polyethylene having a density of not higher than 0.943 g/cm3. |
priorityDate |
1976-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |