| 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/C08F10-00 |
| filingDate |
1980-06-02^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1981-12-29^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfcd75c288184b11874786c82fcb7d81
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cbd925b081397a607d9d616463311b30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3859f5f3389cdbddb3d731b1cd261d4 |
| publicationDate |
1981-12-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4308369-A |
| titleOfInvention |
High efficiency catalyst for polymerizing olefins |
| abstract |
Olefins are polymerized in the presence of a catalyst prepared by reacting tetravalent titanium compounds such as a titanium tetraalkoxide, an anhydrous zinc compound such as diethyl zinc, an organomagnesium component such as a hydrocarbon soluble complex of dialkyl magnesium and an alkyl aluminum and a halide source such as a hydrogen halide or an alkyl aluminum halide and an aluminum compound if the halide source or organomagnesium component does not contain sufficient quantities of aluminum. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics and these catalysts produce polymers having broader molecular weight distributions than do corresponding catalysts without the anhydrous zinc compound. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010331563-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7767771-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10851190-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9255160-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4721762-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5114897-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8426535-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007142656-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7964681-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4396748-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4370456-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10308741-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008200709-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7087686-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4387200-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4399053-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5045612-A |
| priorityDate |
1979-09-28^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |