RU95121774A - CATALYTIC POLYMERIZATION SYSTEMS, THEIR RECEPTION AND APPLICATION - Google Patents

Claims (17)

1. A method of producing a catalytic system on a carrier, comprising the steps of bringing a moisture-containing carrier material into contact with an organometallic compound at a temperature in the range of 30 to -45 ^o C, which does not change by more than 10 ^o С, and the molar ratio between the metal of the organometallic compound and the water content of the support material is greater than 0.7, and the addition of at least one metallocene catalyst component. 2. A method of producing a catalytic system on a carrier, in which a) a moisture-containing material of the carrier is added to a solution of the organometallic compound at a constant temperature in the range from 30 to -45 ^o C and in an amount sufficient to achieve the molar ratio between the metal of the organometallic compound and the water content the carrier material is in the range of from greater than 0.7 to 1.5, and the mixture is allowed to react, and b) at least one metallocene catalytic component is added to the reacted mixture.  3. The method according to any one of the preceding claims, wherein the carrier material is at least one material from the group comprising inorganic oxides, inorganic chlorides and polyolefins, preferably silica, alumina or magnesia.  4. The method according to any one of the preceding claims, wherein the organometallic compound is an organometallic compound of groups 1, 2, 3, and 4. 5. The method according to any of the preceding paragraphs, where the temperature varies in the range from 0 to 10 ^o C. 6. The method according to any of the preceding paragraphs, in which the temperature is in the range from 10 to -20 ^o With, preferably from 8 to -20 ^o C.  7. The method according to any of the preceding paragraphs, in which the water content of the material of the carrier is from 3 to 27 wt.% Of the total weight of the material of the carrier, preferably from 7 to 15 wt.%.  8. The method according to any of the preceding paragraphs, in which the magnitude of the molar ratio between the metal of the organometallic compound and the water content of the carrier material is from 0.8 to 1.5. 9. The method according to any of the preceding paragraphs, where the metallocene catalytic component corresponds to the formulas

where Me denotes a transition metal of group 4, 5 or 6,

denotes an unsubstituted or substituted cyclopentadienyl, each of R ', which may be the same or different, denotes a hydrogen atom, an alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical containing from 1 to 20 carbon atoms, or two carbon atoms joined together to form parts of C ₄ - C _{2 0} rings; R "denotes a radical containing one or more or a combination of such components as carbon, germanium, silicon, phosphorus and nitrogen atoms, connecting two bridges

rings or bridging one

a ring with Me, when p is 0, and x is 1, and in other cases x values are always 0, each of Q, which may be the same or different, denotes aryl, alkyl, alkenyl, alkylaryl or arylalkyl radical containing from 1 up to 20 carbon atoms, or halogen, Q 'denotes an alkylidene radical containing 1 to 20 carbon atoms; s is 0 or 1 when s is 0, m is 5 and p is 0.1 or 2, and when s is 1, m is 4 and p is 1. 10. The method according to any of the preceding paragraphs, in which the metallocene catalytic component corresponds to the formulas

where Me denotes a transition metal of group 4, 5 or 6, each of R ′, which may be the same or different, denotes a hydrogen atom, alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical containing from 1 to 20 carbon atoms, R ″ ″ denotes a radical containing one or more or a combination of components such as carbon atoms, germanium, silicon, phosphorus and nitrogen, connecting two bridge (C ₅ H _n R ') - rings, each of Q, which may be the same or different, means aryl, alkyl, alkenyl, alkyl -sterile or arylalkyl radical containing from 1 to 20 carbon atoms or halogen, Q 'denotes an alkylidene radical containing 1 - 20 carbon atoms, when s is 1, n is 3, and when s is 0, n is 4.  11. A method according to any one of the preceding claims, wherein the catalytic system is dried to a free-flowing powder.  12. The method according to any one of the preceding claims, wherein the catalytic system is further suspended in a solvent.  13. The catalytic system obtained by the method according to any one of the preceding paragraphs.  14. The method of polymerization of olefins individually or in combination with one or more other olefins, including polymerization in the presence of a catalytic system according to any one of the preceding paragraphs. 15. A method of obtaining a carrier material impregnated with alumoxane, comprising the steps of introducing a moisture-containing carrier material into contact with an organometallic compound at a temperature in the range from 30 to -45 ^o C, which does not change by more than 10 ^o С, and the magnitude of the molar ratio between the organometallic compound and water content of the carrier material exceeds 0.7.  16. Metallocene / alumoxane catalytic system on the carrier, while the catalytic system includes the material of the carrier, at least one metallocene compound and alumoxane, and the material of the carrier is impregnated with alumoxane and at least one metallocene compound and this catalytic system that is compatible solvent, practically insoluble, as determined by means of ISPES; as a result, less than 1000 ppm of metal oxide can be extracted in such compatible solvent anicheskogo compound and / or aluminoxane, and / or less than 50 parts / million metal metallocene compound.  17. The catalytic system of claim 17, wherein the total aluminum content in the solvent is less than 10 ppm and / or the total transition metal content in the solvent for the metallocene is less than 10 ppm.