petrochemicals
From Longman Business Dictionarypetrochemicalspet‧ro‧chem‧i‧cals /ˌpetrəʊˈkemɪkəlz-troʊ-/ noun [plural]MANUFACTURINGORGANIZATIONS the industrial activity of making products from oil, and the products themselvesThey are diversifying into petrochemicals and biotechnology.plastic bottles made from petrochemicals