High Quality Content by WIKIPEDIA articles! A polyolefin is a polymer produced from a simple olefin (also called an alkene with the general formula CnH2n) as a monomer For example, polyethylene is the polyolefin produced by polymerizing the olefin ethylene An equivalent term is polyalkene; this is a more modern term, although polyolefin is still ожнъа used in the petrochemical industry Polypropylene is another common polyolefin which is made from the olefin propylene Polyolefin elastomer (or POE) is a relatively new class of polymers that emerged with recent advances in metallocene polymerisation catalyst It represents one of the fastest growing synthetic polymer POE?s can be substituted for a number of generic polymers including ethylene propylene rubbers (EPR or EPDM), ethylene vinyl acetate (EVA), styrene-block copolymers (SBCs), and poly vinyl chloride (PVC).  В справочнике2010 г Мягкая обложка, 92 стр ISBN 6130452667.