: Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles (e.g., ropes, thermal underwear and carpets), stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes.
: P 2018 (OTTO) Polypropylene Cas 9003-07-0 - used in the manufacture of loudspeaker drive units. P 2018 (OTTO) Polypropylene Cas 9003-07-0 - used as an engineering plastic, competing with materials such as acrylonitrile butadiene styrene (ABS). Polypropylene is reasonably economical.