Advance in technology of propylene polymerization

Recent advances in Ziegler-Natta catalysts for propylene polymerization were reviewed. Especially development of new internal donors, namely 1, 3-diether, succinate and 1, 3-diol diester, and performances of related catalysts were discussed. Research progresses on propylene polymerization process, including Spherizone process of Basell company, Borstar process of Borealis company and application of supercritical technology in olefin polymerization, and advantages of these processes, were centered on. Information concerned newly developed polypropylene (PP) products, namely high melt strength PP, high crystallinity PP, high flow copolypropylene and high transparency PP was stated. The future of PP industry in our country was also briefly proposed.EI03289-2943