I-HP550J inelayisensi evela kuLyondell Basell'Ubuchwepheshe be-spheripol. I-propylene yezinto ezingavuthiwe ikhiqizwa ngenqubo ye-PDH, futhi okuqukethwe kwe-sulfur kwe-propylene monomer kuphansi kakhulu. Umkhiqizo unezici zamandla aphezulu, ukuqina okuphezulu, ukuguquguquka okuhle, ukucutshungulwa okulula, iphunga eliphansi njalo njalo.