TITANIUM CATALYSTS, PREPARATION AND USE IN CO- AND TER-POLYMERIZATION OF ALPHA-OLEFINS

摘要

Titanium complex having general formula (I) (RCOO)nTiXp wherein R is amonofunctional hydrocarbyl radical having from 1 to 20 carbon atoms and anumber of halogen atoms, selected from fluorine, chlorine and bromine,preferably chlorine, ranging from 1 to 6; X is chlorine, bromine or a beta-dicarbonyl group such as acetylacetone (AcAc), formylacetone, benzoylacetone,dibenzoylmethane; p + n = 2, 3, 4, preferably p + n = 3; n is greater than orequal to 1. The preparation of the above complex and its use in the co- andter-polymerization of .alpha.-olefins, are also described.