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  2. Polyurethane - Wikipedia

    en.wikipedia.org/wiki/Polyurethane

    Liquid resin blends and isocyanates may contain hazardous or regulated components. Isocyanates are known skin and respiratory sensitizers. Isocyanates are known skin and respiratory sensitizers. Additionally, amines, glycols, and phosphate present in spray polyurethane foams present risks.

  3. List of UN numbers 2701 to 2800 - Wikipedia

    en.wikipedia.org/wiki/List_of_UN_numbers_2701_to...

    Thiocarbamate pesticide, liquid, flammable, toxic, flashpoint less than 23 °C UN 2773 (UN No. no longer in use) Phthalimide derivative pesticides , solid, toxic, n.o.s. (UN No. no longer in use) [ 1 ]

  4. Thermoplastic polyurethane - Wikipedia

    en.wikipedia.org/wiki/Thermoplastic_polyurethane

    Thermoplastic polyurethane (TPU) is any of a class of polyurethane plastics with many properties, including elasticity, transparency, and resistance to oil, grease, and abrasion. Technically, they are thermoplastic elastomers consisting of linear segmented block copolymers composed of hard and soft segments.

  5. List of polyurethane applications - Wikipedia

    en.wikipedia.org/wiki/List_of_polyurethane...

    Industrial Insulation. Rigid polyurethane foam is used in various industries to provide thermal insulation to installations and pipes. In particular, the piping for district heating systems in Europe is primarily insulated using a pre-insulated pipes sandwich assembly composed of a steel heat service pipe, an insulating layer (polyurethane foam) and a polyethylene (PE) casing, which are bonded ...

  6. GHS hazard statements - Wikipedia

    en.wikipedia.org/wiki/GHS_hazard_statements

    Extremely flammable liquid and vapour H225: Highly flammable liquid and vapour H226: Flammable liquid and vapour H227: Combustible liquid H228: Flammable solid H229: Pressurized container: may burst if heated H230: May react explosively even in the absence of air H231: May react explosively even in the absence of air at elevated pressure and/or ...

  7. Happy new year! See photos of Times Square as Americans ring ...

    www.aol.com/happy-see-photos-times-square...

    A man gestures as people gather at Times Square to watch the ball drop on New Year's Eve in New York City, U.S., December 31, 2024.

  8. Methylene diphenyl diisocyanate - Wikipedia

    en.wikipedia.org/wiki/Methylene_diphenyl...

    The major application of 4,4′-MDI is the production of rigid polyurethane. [9] These rigid polyurethane foams are good thermal insulators and used in nearly all freezers and refrigerators worldwide, as well as buildings.

  9. Fluoride once again scrutinized for possible effect on ... - AOL

    www.aol.com/news/fluoride-once-again-scrutinized...

    A new report once again raises the question of whether there is a link between fluoride in drinking water and lower IQ levels in children.

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