单词	polyolefin
释义	polyolefin noun poly·​ole·​fin ˌpä-lē-ˈō-lə-fən  : a polymer of an alkene (such as polyethylene) Example Sentences Recent Examples on the Web Borealis is the world’s sixth-biggest maker of polyolefins - plastics made from oil - and had net income of 872 million euros ($984 million) on 8.1 billion euros of revenue last year. Boris Groendahl, Bloomberg.com, 5 May 2020 Taking over the maker of polyolefins, base chemicals, and fertilizer would accelerate Chief Executive Office Rainer Seele’s move toward higher-value, lower-emission oil products. Boris Groendahl, Bloomberg.com, 5 May 2020 The primary material in many tampon applicators is a malleable plastic called polyolefin, while the absorbent core is typically made from a blend of cotton and/or rayon, and strings can be a mix of cotton, polyester, rayon, and more plastic. Gabi Thorne, Allure, 27 Nov. 2019 Word History First Known Use 1930, in the meaning defined above
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