http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FI-111083-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03ade04c304817cb15fe4aac06476101 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-658 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-06 |
| filingDate | 1993-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53decfac3d45118a7b8d0562573d3c4f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_371e603a2322f90a7c019372493d72bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9d85f2e8ef1584a5c23b7d3d2a7f9ed |
| publicationDate | 2003-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FI-111083-B |
| titleOfInvention | Catalyst for the polymerization of olefins |
| abstract | Method comprises (a) treating non-activated silica particles with a soln. of a Sn tetra-halide in an inert hydrocarbon at a wt. ratio of 1:1-1:20 at -30-+30 deg. C to at least partially block the OH gps. on the silica; (b) impregnating this treated silica with a soln. of a Mg dialkyl or alkyl halide in an inert hydrocarbon at a wt. ratio fo 1:0.1-1:10 at between 20 deg. C and the b.pt. of the liq. phase for a time sufficient for the Mg cpd. to react with the Sn cpd.; (c) halogenating the support by treating the impregnated silica with a soln. of a Sn, Sb or Si halide at a molar ratio metal halide:Mg cpd. in (b) of 0.1:1-100:1 at -20-+100 deg. C for 0.5-5.0 h; (d) contacting the halogenated support with an excess of a Ti tetrahalide at 20-120 deg. C for 0.5-5.0 h to titanate the support; (e) contacting the titanated support with a Lewis base in a molar ratio of base:Mg cpd. in (b) of 0.05:1-0.5:1 at 80-120 deg. C for 0.5-5.0 h to obtain the solid support system; and (f) recovering this solid from the reaction prods. of step (e). |
| priorityDate | 1993-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.