FIELD: polymer production.
SUBSTANCE: superhigh-molecular weight polyethylene is obtained in suspension conditions at temperature between 40 and less than 70°C in hydrocarbon solvent medium using supported catalyst. The latter is prepared through interaction of compound Mg(C6H5)2n*MgCl2*mR2O (R2O is ether, R = i-Am, n-Bu) with silicon compound, which is a product prepared by reaction of compound R1kSiCl4-k with silicon tetraethoxide Si(OR)4 (R1 represents methyl or phenyl and k=0.1) at molar ratio R1kSiCl4-k/Si(OR)4 = 2-4 at 15-45°C and Si/Mg = 1-2.5. Loose weight of obtained polymer is higher than 0.35 g/cc.
EFFECT: increased yield of superhigh-molecular weight polyethylene with improved morphology.
1 tbl, 13 ex
| Title | Year | Author | Number |
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| CATALYST PREPARATION PROCESS AND ETHYLENE POLYMERIZATION AND ETHYLENE-ALPHA-OLEFIN COPOLYMERIZATION PROCESSES UTILIZING THIS CATALYST | 2004 |
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| CATALYST AND METHOD OF PRODUCING POLYETHYLENE AND COPOLYMERS OF ETHYLENE WITH ALPHA-OLEFINS WITH NARROW MOLECULAR WEIGHT DISTRIBUTION | 2008 |
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| METHOD OF OBTAINING POLYETHYLENE AND COPOLYMERS OF ETHYLENE WITH ALPHA-OLEFINS WITH WIDE MOLECULAR MASS DISTRIBUTION | 2007 |
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| CATALYST PREPARATION PROCESS AND ETHYLENE POLYMERIZATION AND ETHYLENE-ALPHA-OLEFIN COPOLYMERIZATION PROCESSES UTILIZING THIS CATALYST | 2004 |
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RU2257264C1 |
