| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ef01e33058cf740cf2197991be97af1 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6592
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-659
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-642 |
| filingDate |
1997-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a2a7c745f8c5cbde13d57e22733a403
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2644e35486c1d8c364dfa34fa9a64ead
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64729c97b81cb8a52fb71c8d9911aa36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_056c31bce927a29b657a76ee296624d6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_063e154648133432e8b229b9a9ae18bc |
| publicationDate |
1999-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H1112310-A |
| titleOfInvention |
Propylene polymerization method |
| abstract |
PROBLEM TO BE SOLVED: To provide a method for stably and continuously polymerizing propylene at a high yield per catalyst using a homogeneous catalyst. SOLUTION: In a bulk polymerization using a homogeneous catalyst, polymerization of 1/5 or less of the total polymerization amount in the first polymerization zone is performed at a temperature 10 ° C. or more lower than the highest polymerization temperature in the subsequent polymerization zone. Performed in a full state without any phase, Then, a propylene polymerization method in which the remaining polymerization is carried out at 60 ° C. or more in at least one subsequent polymerization zone under the condition that a gas phase is present. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4495846-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004046205-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002121202-A |
| priorityDate |
1997-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |