The invention provides a process for producing an olefin polymerisation
catalyst, comprising suspending a porous particulate support material in
a liquid/liquid two phase system which comprises a solution of one or
more catalyst components and an inert solvent immiscible therewith, to
impregnate said solution into the pores of said support material, and
optionally solidifying said impregnated solution present in the pores of
said support particles.
