Method for producing polypropylene using co-supported catalyst composition of Ziegler-Natta and metallocene for olefin polymerization

摘要

The present invention relates to a method for producing a polypropylene capable of controlling properties and molecular weight distribution using a co-support catalyst of Ziegler-Natta and metallocene.;The present invention uses a co-supported catalyst in which a Ziegler-Natta catalyst and a metallocene catalyst are mixed in preparing a polypropylene having various molecular weight distribution and stereoregularity by polymerization, and a general formula R _n AlY ₃ as a cocatalyst. using one or a mixture of organoaluminum compounds or aluminoxanes represented by _-n (wherein R is a hydrocarbon having 1-20 carbon atoms, Y is halogen and 0 ≦ n ≦ 3). It features.;Polypropylene produced by the present invention has a variety of properties and molecular weight distribution, can be molded and used in a variety of products such as plates, films, containers, fibers.