Patent ID: 7153804

Claim:
A catalyst component for ethylene polymerization, comprising a reaction product supported on an inorganic oxide support, said reaction product being prepared from a. a magnesium complex formed by dissolving a magnesium halide in a solvent system comprising: i. an organic epoxy compound selected from the group consisting of an alkyl epoxy, an alkyl diepoxy, a halogenated alkyl epoxy or alkyl diepoxy and glycidyl ether, wherein said alkyl is a C2 to C8 alkyl and ii. an organophosphorus compound selected from the group consisting of alkyl or halogenated alkyl esters of orthophosphoric acid or phophorous acid; b. an alcohol selected from the group consisting of a linear, branched, or cyclic alkanol with from 1 to 10 carbon atoms; c. an organoaluminum compound, AlR 1 n X 1 3-n , in which R 1 is independently hydrogen, alkyl, aryl or aralkyl having from 1 to 20 carbon atoms, X 1 is halogen, and 0<n≦3: and d. a titanium compound is represented by Ti(OR 2 ) a X 2 b , in which R 2 is independently alkyl or aryl having from 1 to 14 carbon atoms, X 2 is halogen, a is an integer from 0 to 4, b is an integer from 1 to 4, and a+b =3 or 4; and said reaction product being supported on an inorganic oxide selected from the group consisting of silica, alumina, titanium oxide, chromium oxide, zirconia and mixtures thereof.