Chemical compositions based on titanium trihalides and...

Details Chemical compositions based on titanium trihalides and... Chemical compositions based on titanium trihalides and...

C - Chemistry, Metallurgy

08

F

402/418, 402/626

C08F 4/06 (2006.01) C01G 1/06 (2006.01) C01G 23/00 (2006.01) C01G 31/00 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1108110

ABSTRACT OF THE DISCLOSURE For the polymerization of ethylene, as such or with one or more alpha-olefines, a novel catalyst composition is suggested, which has a high yield of polymer per weight unit of catalyst. Such compositions are prepared from a titanium compound in which the valency of Ti is 3 or more, said compound being reacted with the vapors of one or more metals of the group consisting of Al, Cr, Mn, V, Ti, Zr, Mo, Zn and Ca in the presence of a halogen donor which is preferably an organic halide, certain inorganic halides being capable of being used provided that the halide metal has at least two degrees of valency. The composition is used in association with an aluminium hydrocarbyl halide. Yields as high as 30,000 grams of polymer per gram of elemental Ti can be obtained.

305535

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