Question: what are olefins and polyolefins?
Answer: Olefins: Olefins are also known as alkenes. They contain a large number of compounds of carbon and hydrogen. Major olefins are ethylene and propylene. ... Polyolefins: Polyolefins are part of polymers, and they are produced from olefins. Major polyolefins are polyethylene (or PE) and polypropylene (or PP).