HP550J ni iwe-ašẹ nipasẹ Lyondell Basell's Spheripol ọna ẹrọ. propylene ohun elo aise jẹ iṣelọpọ nipasẹ ilana PDH, ati pe akoonu imi-ọjọ ti propylene monomer kere pupọ. Ọja naa ni awọn abuda ti agbara giga, rigidity giga, ductility ti o dara, ṣiṣe irọrun, õrùn kekere ati bẹbẹ lọ.