polypropylene
Americannoun
noun
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Any of various thermoplastic resins that are polymers consisting of repeated branched units derived from propane and having the formula CH 2 CH(CH 3), usually with the methane groups (CH 3) all on one side of the chain. Polypropylenes are similar to polyethylenes but are harder and tougher and are used to make molded articles and fibers.
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A fabric of fibers made from any of these resins.
Etymology
Origin of polypropylene
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"In polyethylene and polypropylene production, for example, aromatic compounds help make the catalysts that control these industrial chemical processes more durable and more effective," explains David Scheschkewitz.
From Science Daily
In this case, the team targeted polypropylene, which is used in water bottles and many other plastic products.
From Science Daily
With the refinery closing, the main industry at the plant is now the production of chemicals like ethylene, polyethylene and polypropylene, which are components in the manufacture of plastics.
From BBC
The company's single-use coffee pods — also known as K-cups — are made of polypropylene plastic, a material that experts warn is not as recyclable as consumers have been led to think.
From Salon
This became possible through the use of random copolymers of polyethylene glycol, which adsorbs water well, and polypropylene glycol, which adsorbs water slightly less well.
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
