I-Block Copolymer, i-PPB-4228 yamukela inqubo ye-Spheripol-II ye-Lyondell Basell. Ingumthelela we-polypropylene ye-copolymer ekwazi ukumelana nokushisa okuphezulu, ukumelana nokuwasha, ukusebenza kahle kwe-precessing, kanye nokuqina komthelela okuhle kakhulu.