Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
filingDate |
1980-06-17^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
1981-10-20^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48b6c0a302663749c4a68b9b7149407b |
publicationDate |
1981-10-20^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-4295992-A |
titleOfInvention |
Support prepared from organomagnesium compounds and silicon halides; and catalysts for polymerizing olefins |
abstract |
A catalyst for the polymerization of olefins is prepared by the reaction of an aliphatic alcohol such as n-propyl alcohol with a mixture of an alkyl magnesium compound such as n-butyl, sec-butyl magnesium and a silicon tetrahalide such as SiCl 4 . After washing the precipitate several times with a hydrocarbon such as hexane, it is suspended in a hydrocarbon such as hexane and an organic titanium compound such as TiCl 4 is added after which a suitable reducing agent such as diethyl aluminum chloride is added. The thus formed solid catalyst is washed several times with a hydrocarbon solvent such as hexane. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0113936-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0763549-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8557935-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5045612-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4477587-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4496660-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6878658-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5001099-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003130108-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8222176-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4434282-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104277145-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104277145-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4387045-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5817591-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007123414-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5155187-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5114897-A |
priorityDate |
1978-06-30^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |