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polypropylene

polypropylene (pŏl´ēprō´pəlēn), plastic noted for its light weight, being less dense than water; it is a polymer of propylene. It resists moisture, oils, and solvents. Since its melting point is 121°C (250°F), it is used in the manufacture of objects that are sterilized in the course of their use. Polypropylene is also used to make textiles, ropes that float, packaging material, and luggage.

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"polypropylene." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 24 May. 2017 <http://www.encyclopedia.com>.

"polypropylene." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (May 24, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/polypropylene

"polypropylene." The Columbia Encyclopedia, 6th ed.. . Retrieved May 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/polypropylene

polypropylene

pol·y·pro·pyl·ene / ˌpäliˈprōpəˌlēn/ • n. a synthetic resin that is a polymer of propylene, used esp. for ropes, fabrics, and molded objects.

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"polypropylene." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 24 May. 2017 <http://www.encyclopedia.com>.

"polypropylene." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (May 24, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polypropylene

"polypropylene." The Oxford Pocket Dictionary of Current English. . Retrieved May 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polypropylene