Patent ID: 8344079

Claim:
A catalyst system for use in olefinic polymerization to form a resultant polymer product, comprising: a solid titanium catalyst component having a substantially spherical shape and a diameter from about 5 microns to about 90 microns on a 50% by volume basis and a degree of sphericalness of 0.9 or more, the solid titanium catalyst component comprising a titanium compound and a support made by contacting substantially equal molar amounts of a magnesium compound and an epoxy compound with an aprotic solvent and a surfactant selected from one or more of the group consisting of polymer surfactants, non-ionic surfactants and anionic surfactants, the magnesium compound and the epoxy compound contacted in an organic medium to form an intermediate, the organic medium comprising an organic solvent capable of forming an emulsion with the intermediate, followed by contacting the intermediate with a halogenating agent an organoaluminum compound having at least one aluminum-carbon bond; and an organosilicon compound, wherein the support has a size span from about 0.7 to about 1.1, and the resultant polymer product produced by the catalyst system has an average diameter of about 500 microns or more on a 50% by volume basis.