the demand for pp totaled 55.1 million tonnes in 2013 and economic slowdown has had little effect on the global market for pp, says ceresana, the german market intelligence companythe economic slowdown has had little effect on the global demand for polypropylene pp, which totalled 55.1 million tonnes in 2013, according to the germanybased market intelligence company, ceresana, which expects pp revenues to rise by 5.8 percent per annum until 2021.the plastic polypropylene pp possesses a good balance of properties that can be tailored to a wide range of production processes and applications.