Ua laikini ʻia ʻo HP500N e Lyondell Basell'ʻenehana Spheripol. Hana ʻia ka propylene maka ma o ke kaʻina hana PDH, a haʻahaʻa loa ka nui o ka sulfur o ka propylene monomer. Loaʻa i ka huahana nā ʻano o ka ikaika kiʻekiʻe, ka paʻakikī kiʻekiʻe, ka ductility maikaʻi, ka maʻalahi o ka hana ʻana, ka ʻala haʻahaʻa a pēlā aku.
