| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-646
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate |
2001-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4b2c039063b4fd6db4ca8945a801a01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c2d37d47ddf32b4fed87afc30222653
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd6647b6624ec3c42f1b8ee8a8dc8439 |
| publicationDate |
2001-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2001007008-A1 |
| titleOfInvention |
Electron donors in a ziegler-natta catalyst for the production of high melt flow copolymers |
| abstract |
The present invention provides a catalyst system that exhibits unexpected control of desired properties in copolymer product. The catalyst system includes a conventional supported Ziegler-Natta catalyst in combination with an electron donor described by the formula: n n n wherein R 1 is a linear alkyl group attached to the silicon atom; R 2 and R 3 are alkyl or aryl groups and R 4 is a linear alkyl attached to the silicon atom, R 1 and R 4 are the same or different. R 1 and R 4 are preferably linear carbon groups of 4-13 carbon atoms, more preferably 4-7 carbon atoms; most preferably R 1 and R 4 are the same and are n-butyl groups. The system exhibits good control over the melt flow index of the copolymer products. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013023598-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004044468-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012289398-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9068030-B2 |
| priorityDate |
1992-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |