http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012072229-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e2b60c751b9b6855cd19a5127595779f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-658 |
| filingDate | 2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e141ed1bfd046e29b38b114e2328aa83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d81f3592259a93f8b8a7e2e3fe1b02e7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe71ea26f33f053d7771fab552ac1b5b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a766415ed3a291490c4195c6cec60bfc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4d6c4d3cde8e2fda40410fddd1ed736 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5bbf296cf37829c3779018cadd503f72 |
| publicationDate | 2012-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2012072229-A |
| titleOfInvention | Ziegler-Natta catalyst reforming method, modified Ziegler-Natta catalyst, olefin polymerization method using the same, and obtained olefin polymer |
| abstract | Provided is a method for reforming a Ziegler-Natta catalyst, which can produce an olefin polymer with few undesirable short-chain branches. A Ziegler-Natta catalyst using a magnesium compound and a tetravalent titanium compound is subjected to a heat treatment at 0 ° C. to 100 ° C. in the presence of an organoaluminum compound represented by the following (c): A reforming method for reforming to a catalyst satisfying the following (1) to (3). (C): AlX 3 q R 4 r (OR 5 ) 3-qr (X 3 is a halogen atom, R 4 and R 5 are each a hydrocarbon group having 1 to 10 carbon atoms) (1): By XPS measurement The obtained Ti atom concentration on the catalyst surface is larger than that before the treatment. (2): The ratio of Ti 3+ concentration to Ti 4+ concentration on the catalyst surface determined by XPS measurement (Ti 3+ / Ti 4+ ) is larger than that before the treatment. (3): The ratio of Al atom content to Ti atom content in the catalyst determined by elemental analysis (Al / Ti) is larger than that before the treatment. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018141136-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107873036-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018522128-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013227545-A |
| priorityDate | 2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 165.