| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1df93ed61a1025e3fffb791365ebe6e4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2410-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-651
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6494 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 |
| filingDate |
2017-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a83782a49ab515ef1d2f25b426f940b1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f7e675f78809ca5bbcbfc7eef533ce0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_799171a7fbea6b3e9ec3208e4e27be30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0875a6ce7ec6d80ce2eabffb6b904d07 |
| publicationDate |
2020-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10759882-B2 |
| titleOfInvention |
Catalyst components for the polymerization of olefins |
| abstract |
A process for the preparation of a solid catalyst component for the homo or copolymerization of olefins, wherein the solid catalyst component is made from or contains Mg, Ti, halogen and an electron donor selected from cycloalkyl ethers, wherein the process includes the steps of (a) dissolving a Mg based compound and a TiCl3 based compound in a liquid medium further made from or containing a cycloalkyl ether and a compound of formula R2OH where R2 is a C1-C20 hydrocarbon group, in which the Ti/Mg molar ratio ranges from 0.1 to 0.5, the cycloalkyl ether/Mg ratio ranges from 1 to 4 and the ROH/Mg molar ratio ranges from 1 to 4; and (b) adding, to the solution coming from step (a), SiCl4 in an amount such that the R2OH/SiCl4 molar ratio ranges from 0.5 to 1.5 and maintaining the temperature in the range 50-150° C. thereby precipitating the solid catalyst component particles. |
| priorityDate |
2016-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |