http://rdf.ncbi.nlm.nih.gov/pubchem/patent/PT-87876-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_50907fc1b392e2bf592f74fb8123032d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-138 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-614 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-654 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-138 |
| filingDate | 1988-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7455688502a16f6ac5ef49ff28a4ddcc |
| publicationDate | 1992-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | PT-87876-B |
| titleOfInvention | METHOD FOR CRYSTALLIZING MAGNESIUM CHLORIDE AND PROCESS OF PREPARATION OF PRO-CATALITIC COMPONENT OF CATALYTIC SYSTEM AND OLEFIN POLYMER |
| abstract | A method for making crystalline magnesium halide particles for use in preparing catalysts usable in the polymerization of alpha olefins, which particles have the formula Mg n E m X p .yROH, wherein E is a metal, X is halogen, ROH is an alcohol, n is a number from 0.25 to 6, m is 0 or 1, p is a number from 2n to (am+2n), where a is the valence of the metal E, and y is a positive number of up to 6, comprises contacting a magnesium compound of the formula Mg n E m X p , wherein the various symbols are as defined herein, or precursor(s) thereof, with an alcohol of the formula ROH to form a solution thereof, heating the solution to remove any water present by azeotroping, and contacting the heated solution with an inert hydrocarbon liquid to precipitate crystalline particles. n Procatalysts are formed by melting the crystalline particles and adding appropriate amounts of a porous support to the molten particles to form supported particles, and halogenating and treating the supported particles. When the procatalysts are used in conjunction with a cocatalyst, such as an organoaluminum compound, olefin polymers of improved morphology can be produced. |
| priorityDate | 1987-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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