http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3840470-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ff244048f86356cc5a9d974725b14b0b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-62 |
| filingDate | 1972-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1974-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51bc8dfa4e32205098bc2ab7cd469c32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7190283b58fee19cfdab6d8e291e6767 |
| publicationDate | 1974-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3840470-A |
| titleOfInvention | Improved organometallic compoundhalogenated transition metal-support catalyst for polymerizing and copolymerizing olefins |
| abstract | 1. PROCESS FOR THE PREPARATION OF CATALYST FOR THE POLYMERIZATION OF ETHYLENE AND FOR THE COPOLYMERIZATION OF ETHYLENE AND AN ALPHA-OLEFIN, SAID CATALYST CONSISTING ESSENTIALLY OF AN ORGANOMETALLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALUMINUM TRIALKYL A ZINC DIALKYL AND A DIALKYL HALIDE OF ALUMINUM WHEREIN EACH ALKYL GROUP CONTAINS 1 TO 4 CARBON ATOMS, AND THE PRODUCT OF INTER-REACTION OF A HALOGENATED DERIVATIVE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF CHLORIDES, BROMIDES AND OXYHALIDES OF METALS OF GROUPS IVB AND VB OF THE PERIODIC SYSTEM, IN THE LIQUID STATE AND A SOLID GRANULAR SUPPORT CHARACTERIZED BY IMPREGNATING AT A TEMPERAURE BETWEEN 50 AND 160*C., FOR A TIME NOT LESS THAN 30MINUTES WITH THE LIQUID HALOGENATED DERIVATIVE OF THE TRANSITION METAL THE GRANULAR SUPPORT TO FORM A SUPPORT WHEREIN SAID HALOGENATED COMPOUND FORMS 5 TO 25 PERCENT BY WEIGHT OF THE SUPPORT OBTAINED BY SUBJECTING TO AN ACTIVATION TREATMENT A MAGNESIUM SALT OF AN ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM OXALATE, FORMATE, LACTATE, TARTRATE, ACETATE, BENZOATE AND CITRATE CONTAINING UP TO 5 MOLECULES OF WATER OF CRYSTALLIZATION, OR A DOUBLE ALKALI METAL AND MAGNESIUM SALT OF SAID ORGANIC ACID CONTAINING UP TO 8 MOLECULES OF WATER OF CRYSTALLIZATION, THE ACTIVATION TREATMENT CONSISTING ESSENTIALLY OF HEATING THE MAGNESIUM SALT OR THE DOUBLE ALKALI METAL AND MAGNESIUM SALT IN A CURRENT OF INERT GAS WHICH IS ANHYDROUS OR HAS A HUMIDITY NOT GREATER THAN 10 PERCENT BY WEIGHT OF SATURATION, HEATING TAKING PLACE GRADUALLY TO A TEMPERATURE AT LEAST 20-30* C., BELOW THE DECOMPOSITION POINT OF THE SALT AND MAINTAINING THE SALT AT TIS TEMPERATURE FOR 5 TO 50 HOURS, SAID INTER-REACTION PRODUCT OF THE HALOGENATED DERIVATIVE OF THE TRANSITION METAL AND THE SOLID SUPPORT BEING CONTACTED WITH THE ORGANOMETALLIC COMPOUND IN A RELATIVE AMOUNT SUCH THAT THE MOLAR RATIO OF THE ORGANOMETALLIC COMPOUND TO THE TRANSITION METAL FIXED ON THE SUPPORT IS 20 TO 150. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4460701-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4277370-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4191816-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011288359-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2722386-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4233182-A |
| priorityDate | 1971-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.