http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20010010724-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_988b7f8a2310e91454e30e89bc4cfac2 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2203-18 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00 |
| filingDate | 1999-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c93163acdd8393984908822862492528 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d7cfe1fbb68995bc7e6ed250dd2e4c8 |
| publicationDate | 2001-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20010010724-A |
| titleOfInvention | Polymerization Method of Ethylene Polymer or Ethylene Copolymer for the Pipe Material |
| abstract | The present invention relates to a method for producing an ethylene polymer or copolymer for pipes having high toughness and high rigidity. More specifically, a low molecular weight polymer is prepared in a first stage reactor, and a high molecular weight polymer is prepared in a two stage reactor. In addition, in a series polymerization reaction using three slurry-type polymerization reactors for producing a higher molecular weight polymer in a three-stage reactor, the catalysts known as Ziegler-Natta catalysts are group IV, V or VI of the periodic table. The mechanical properties of high toughness and high rigidity can be achieved by using the transition metal compound belonging as the main catalyst and adding the organoaluminum halide compound or the organoaluminum halide compound and ethyl chloride together in the three-stage reactor to produce the largest high molecular weight polymer. To a process for producing ethylene polymers or copolymers for pipes having The. |
| priorityDate | 1999-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.