Process to simultaneously reactor-fill polyolefins and compatibilize fillers with polyolefins

摘要

The present invention relates to a process to simultaneously reactor-fill polyolefins and to a compatibilized, reactor-filled polyolefin composite produced by the process of the instant invention. More specifically, the instant invention provides a process to simultaneously reactor-fill-polyolefins comprising the steps of (a) treating a filler with a catalytic amount of an organometallic compound prior to using the filler for in-situ polymerization; (b) contacting the product of step (a) in random order of no specific sequence with a high activity polymerization catalyst, a cocatalyst, and, if necessary a cocatalyst modifier such that said contacting results in the formation of an interpenetrating, compatibilizing polymer in the pores and surface of the filler when exposed to a monomer; and (c) adding an alpha-olefin under olefin polymerization reaction conditions to the reaction product of step (b) to form a reactor-filled composite.