http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-331568-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F297-083 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-654 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-658 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-656 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 |
| filingDate | 1996-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1998-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db45801879645b8ac487e9b1d65343f0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_edf23eff7d71c35b52a31677e0ea0c11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e56845aa4aee2ddff6a25e31cfa6cb52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d25bc0bc8e36ed37b08cf5bb4891da33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4be6d37d576c3bcf7249e87e42bca4c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33680f6cd5eed3f12b0103687b7e6779 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_35e2947fe1e53a36dec5a1ef66ff228e |
| publicationDate | 1998-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-331568-B |
| titleOfInvention | Process for preparing propylene polymers |
| abstract | A process for preparing propylene polymers which comprises from 25~97% by weight of a propylene polymer (I) containing from 0 to15% by weight of copolymerized C2-C10-alkyl-1-enes and also comprises from 3 to 75% by weight of a further propylene polymer (II) containing from 15~80% by weight of copolymerized C2-C10-alkyl-1-enes, obtainable by two-stage polymerization of propylene and C2-C10-alky-1-enes in the presence of a Ziegler-Natta catalyst system which comprises a titanium-containing solid component (a) comprising a compound of magnesium, a halogen, silica gel as support and a carboxylic ester as electron donor compound, and also as cocatalysts an aluminum compound (b) and further electron donor compound (c), where in a first polymerization stage, propylene is polymerized in the presence or absence of further C2-C10-alk-1-enes at from 50 to100 degree C, pressure in the range from 15 to40 bar and a mean residence time of from 0.5 to 5 hours and subsequqntly, in a second polymerization stage, a mixture of propylene and further C2-C10-alk-1-enes is polymerized at from 30 to100 degree C, pressures in the range from 0.5 to5 hours onto the propylene (I) obtained from the first polymerization stage, and the silica gel used as support for the titanium-containing solid component has a mean particles of from 1 to 10μm, which voids or channels have a macroscopic volume as a proportion of the total particle in the range from 5 to20 %. |
| priorityDate | 1995-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.