| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78ca80ad4b743c901ec136b21263f093 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2207-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-142
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6548
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-0815
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6565
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-001 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-656
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-654
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-06 |
| filingDate |
2017-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09d503b573e95e89ad923b52bae66322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b1189a78213b5eb834fcf0d2d672588 |
| publicationDate |
2019-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2019330386-A1 |
| titleOfInvention |
Process for manufacture of low emission heterophasic polypropylene |
| abstract |
The invention relates to a process for the preparation of a heterophasic propylene copolymer consisting of a propylene-based matrix and a dispersed ethylene-α-olefin copolymer, comprising the steps of a) preparing the propylene-based matrix from propylene and optionally a C2 or C4-C12 α-olefin by contacting at least propylene and optionally C2 or C4-C12 α-olefin with a catalyst in a first gas-phase reactor at a temperature T1 and a pressure P1, b) subsequently preparing the dispersed ethylene-α-olefin copolymer from ethylene and a C3-C12 α-olefin by contacting the ethylene and the C3-C12 α-olefin with a catalyst in a second gas-phase reactor at a temperature T2 and a pressure P2, wherein T1−T2 is in the range from 6 to 25° C., wherein T1>T2, wherein P1 and P2 are in the range from 22 to 30 bar to prepare a heterophasic propylene copolymer (A′). |
| priorityDate |
2016-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |