http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H06211930-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_325e8f74339359cd24e45eb790ace68f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-658 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate | 1993-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ea2344532bf891c72ba676c3c384c71 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a301b084e3cd7b0791e996aadee6f7a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ba768ad7d75576eff7ef76841141444 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8edc7ea535cbb04409213d72e3e0558f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6c501630cd2f4997e4fcc8a47c84baf |
| publicationDate | 1994-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H06211930-A |
| titleOfInvention | Method for producing polypropylene |
| abstract | (57) [Abstract] [PROBLEMS] To provide a method for obtaining a polypropylene having high rigidity and a low catalytic activity in a multi-stage polymerization of propylene, having good processability. [Structure] Propylene is multi-stage polymerized using a polymerization catalyst component obtained by the following 1) to 4), And a method for producing polypropylene, which comprises varying the melt flow rate of the polymer obtained at each stage. 1) Contact with a solid catalyst component containing metal oxide, magnesium, titanium, halogen and an electron donating compound as an essential component, 2) an organoaluminum compound and 3) an organosilicon compound containing a cyclic ether group, and 4) an olefin. Let |
| priorityDate | 1993-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 678.