Patent ID: 7799724
Filing Date: 2010-09-21
Classification: C08F

Abstract:
1. A method for preparing a supported catalyst component for the production of hollow beads of polyethylene comprising: (a) providing porous functionalized beads of polystyrene characterized by the formula: wherein: A is a substituted or unsubstituted alkyl group having from 2 to 18 carbon atoms providing a flexible arm; (b) dissolving an iron-based complex characterized by formula I in a solvent: wherein: R is an alkyl group having from 1 to 20 carbon atoms; R′ and R″ are the same or different and are each a substituted or unsubstituted alkyl group having from 1 to 20 carbon atoms, an unsubstituted aryl group or a substituted aryl group having substituents having from 1 to 20 carbon atoms; (c) saturating the bead of subparagraph (a) with the solution of subparagraph (b); (d) thereafter evaporating the solvent; and (e) retrieving dry beads of the supported catalyst component.