polyurethane

American  

[pol-ee-yoor-uh-thayn, -yoo-reth-ayn] / ˌpɒl iˈjʊər əˌθeɪn, -jʊˈrɛθ eɪn /

Also polyurethan

noun

Chemistry.

• polyurethanes
  plural

1. a thermoplastic polymer containing the group NHCOO: used for padding and insulation in furniture, clothing, and packaging, and in the manufacture of resins for adhesives, elastomers, and fillers.

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polyurethane British  

/ ˌpɒlɪˈjʊərəˌθæn, ˌpɒlɪˈjʊərəˌθeɪn /

noun

1. a class of synthetic materials made by copolymerizing an isocyanate and a polyhydric alcohol and commonly used as a foam ( polyurethane foam ) for insulation and packing, as fibres and hard inert coatings, and in a flexible form ( polyurethane rubber ) for diaphragms and seals

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polyurethane Scientific  

/ pŏl′ē-yr′ə-thān′ /

1. Any of various synthetic resins used to make tough resistant coatings, adhesives, foams, and electrical insulation.

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Other Word Forms

Noun Inflected Forms

• polyurethanes
  plural

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Etymology

Origin of polyurethane

First recorded in 1940–45; poly- + urethane

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Example Sentences

See Examples For:

polyurethane polyurethanes

The monument will be installed in a park in Callao, a nearby port city, after being coated with polyurethane foam and fiberglass, and finished with a marble dust.

From Barron's ● Sep. 26, 2026

Even though she hired a builder with green credentials, she spotted him using a can of spray polyurethane foam – essentially a type of plastic – for insulation.

From BBC ● Mar. 16, 2026

My favorites may be the palm-printed sports shirts hanging on a white wooden palm tree-clothes rack, and artist Jeff Sanders’ metal and polyurethane palm tree.

From Los Angeles Times ● Feb. 20, 2025

Sports Group has the Rekortan brand, which has a surface made from a polyurethane derived from canola and rapeseed oils.

From BBC ● Jul. 22, 2024

"The next step is to prepare electrothermal materials using polyurethane foam as the skeleton for oil adsorption, combining photothermal and electrothermal techniques to form an all-weather oil recovery system."

From Science Daily ● Apr. 23, 2024

The polyurethanes created here have new 'dynamic' chemical bonds, which means that despite their thermoset structure, they can be reshaped by exchanges of chemical bonds under relatively mild reaction conditions.

From Science Daily ● Nov. 13, 2023

They applied thermoplastic polyurethanes, an elastic plastic commonly found in phone and laptop cases, so the fingers could flex and squeeze objects.

From Washington Post ● Feb. 11, 2023

Higher gas prices are driving up costs for specialty chemical maker Huntsman Corp, which produces polyurethanes used to make electronics, building materials and furniture, Chief Executive Peter Huntsman told Reuters.

From Reuters ● May 16, 2022

“The breakdown of certain polyurethanes can release toxic additives, which need to be handled carefully. This research group has discovered a strain that can tackle some of these chemicals,” he said.

From The Guardian ● Mar. 27, 2020

Covestro, a maker of raw materials for adhesives, polyurethanes and other chemicals spun off from the pharmaceuticals giant Bayer AG in 2015, estimated 15% of its more than 1,000 Houston-area staff were hit by flooding.

From The Wall Street Journal ● Sep. 7, 2017

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