http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103201299-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0a906fcc273ed8131a3b80b3b8e9bb31 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2314-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2308-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-646 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-06 |
| filingDate | 2011-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d83e4daac0186c39125f801e8fa3e317 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c775a4db81d697eb7b3e4c8fac136c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2827a5ab4dded5e96989836346183371 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_414770cdc570be08dd2ecc48e81c4925 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a39cd8eff563d555db08b17bcc291348 |
| publicationDate | 2015-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103201299-B |
| titleOfInvention | Improved process for polymerising propylene |
| abstract | Process for producing a propylene homopolymer, a propylene random copolymer or a heterophasic propylene polymer, which process comprises the steps of (a) prepolymerisation, (b) slurry phase polymerisation (c) gas phase polymerisation and optionally (d) one or two further gas phase polymerisation(s), whereby the process is performed in the presence of a catalyst system comprising (x) a Ziegler-Natta procatalyst and (y) an organometallic cocatalyst and (z) an external donor represented by formula (II) and/or (III) Si(OCH2CH3)3(NR1R2) (II) or R3nR4mSi(OR5)z (III) wherein R1 and R2 can be the same or different and represent a hydrocarbon group having 1 to 12 carbon atoms and R3 and R4 can be the same or different and represent a hydrocarbon group having 1 to 12 carbon atoms, R5 is methyl or ethyl, z is 2 or 3, preferably 2, m is 0 or 1, n is 0 or 1, with the proviso that n + m + z = 4, the external donor being added in an amount of 3 to 30 wt%, based on the total amount of external donor added, to the prepolymerisation step and in an amount of 70 to 97 wt%, based on the total amount of external donor added, to the slurry polymerisation step. |
| priorityDate | 2010-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 91.