Catalyst for the (co)polymerization of alpha-olefins, a process

Details Catalyst for the (co)polymerization of alpha-olefins, a process Catalyst for the (co)polymerization of alpha-olefins, a process

1995-08-14

1996-12-17

Delmendo, Romulo H.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502104, 502105, 502107, 502112, 502128, 502169, C08F 468

Patent

active

055854478

ABSTRACT:
This catalyst has the general formula VX.sub.3, mAIX.sub.3, nZ, wherein X is a halogen atom, Z is at least one at least partially halogenated, branched or unbranched, saturated hydrocarbon, m is between 0.1 and 10, and n is between 1 and 300. To prepare it, a vanadium halide VX.sub.2 and/or VX.sub.3 is coground with an aluminum halide AlX.sub.3, and then at least one halogenated hydrocarbon Z is added to the mixture obtained in proportions corresponding to the chosen values of m and n. The invention also relates to the (co)polymerization of alpha-olefins at 20.degree.-350.degree. C. in the presence of a catalyst system comprising at least one catalyst as defined above and at least one organometallic activator.

REFERENCES:
patent: 4173698 (1979-11-01), Kanoh et al.

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