http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2132447-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31855 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-91 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-655 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K23-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-646 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-645 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-658 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-685 |
| filingDate | 1993-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c50e9d45dc1c4a92668bf38fd58024a6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e099ba22e9a727b8fcb926d744a974b2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_147e17c01c225e5b8e6d5a1d260750ce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd543bb74fd43881e183a7e03639b862 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6b075ff7bb5417d8feeef9e145c5c38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_812f6c73f2ed3661d40ea502a3cde170 |
| publicationDate | 2006-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2132447-C |
| titleOfInvention | Silica supported transition metal catalyst |
| abstract | A transition metal containing catalyst useful for the polymerization of .alpha.-olefins is prepared by (A) forming in an inert atmosphere which excludes oxygen and moisture a slurry of (1) a porous inorganic oxide support material selected from the group consisting of silica, alumina, or a combination of silica and alumina, said support material containing not greater than about 5 millimoles of hydroxyl groups per gram of support material and a particle size not greater than about 10 microns and a surface area of from about 50 to about 800 m2/g in an inert organic liquid medium; (B) mixing said slurry with (2) an alkoxide and stirring the resultant mixture at a temperature.of from about -20 °C to about 120 °C for a time sufficient to saturate the surface of the support material; (C) mixing the product form (B) with (3) a titanium compound or a combination of a titanium compound: and (4) a vanadium compound and stirring the resultant mixture at a temperature of from about -20 ° C to about 120 °C for a time sufficient to allow complete reaction of the titanium compound and the vanadium compound with the organomagnesium moieties remaining an the solid support; (D) mixing the product from (C) with an inert organic solution of (5) a Group IIIA metal alkyl halide at a temperature of from about -20 °C to about 120 °C for a time sufficient to complete the reduction of the titanium and vanadium, if present, compounds to their final oxidation state. Ethylene/alpha-olefin copolymers which have greater than 17 percent high density fraction and an M w/M n ratio of less than about 3.6 are shown to be useful in making cast films which have good stretchability and good puncture resistance. Copolymers of the present invention having the specified properties are especially useful in making the films. |
| priorityDate | 1992-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 185.