History of Polypropylene


German chemist, Karl Rehn, and Giulio Natta first polymerized propylene to a crystalline isotatic polymer in March 1954. This discovery soon led to a commercial production of polypropylene starting in 1957. Others claimed the discovery, as often occurs when a general body of knowledge is used, and this litigation was not resolved until 1989. This very popular plastic is one that many different manufacturers use for a number of different products.