| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2e205bb5d96ea9bd0dc7488ba476be22 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-905 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 |
| filingDate |
1978-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1983-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21890002aa294daec075c24235400579
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c17016914eef967dc94e0345ab4333ec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a670380b3d36805e481d454bcb1ee7f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17d24e966bb4a90450e971f2e8536d2b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_409d3c0f9633d59c606a70318693b9db
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f5687338bc2918e2e97aad7832e8f25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c266f425a7393ee6e34302f0c22c9f3c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3ac256eb4a6920c00b4302718cbd220 |
| publicationDate |
1983-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4370458-A |
| titleOfInvention |
Process for the manufacture of polyolefins |
| abstract |
An improvement in a process for the preparation of an ethylene homopolymer or a copolymer of ethylene with an alpha -olefin containing 3 to 15 carbon atoms by contacting the monomer or mixture of monomers in solution, suspension or in gas phase at 20 DEG to 250 DEG C. at a pressure of 1 to 50 bar with a mixed catalyst comprising a chlorine containing titanium (III) compound and an organoaluminum compound in the presence of hydrogen, the improvement residing in employing as the organoaluminum compound a trialkylaluminum compound in an amount of 0.1 to 20 mol per mol titanium (III) compound and including in the polymerization mixture oxygen at a concentration of 0.001 to 0.1 volume percent based upon the amount of ethylene. By carrying out the polymerization by including oxygen in the polymerization reaction mixture and employing trialkylaluminum compound as the organoaluminum compound the mean molecular weight of the polymer can be regulated while obtaining a desired molecular weight distribution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6080828-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5155186-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5962615-A |
| priorityDate |
1976-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |