Polyurethane wikipedia - Search
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  2. History

    Otto Bayer and his coworkers at IG Farben in Leverkusen, Germany, first made polyurethanes in 1937. The new … See more

    Polyurethane - Wikipedia

    • Polyurethane refers to a class of polymers composed of organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane term does not refer to the single type of polymer but a group of polymers. Unlike polyethylene and polystyrene polyurethanes can be produced from a wide rang… See more

    Chemistry

    Polyurethanes are produced by reacting diisocyanates with polyols, often in the presence of a catalyst, or upon exposure to ultraviolet radiation. Common catalysts include tertiary amines, such as DABCO, DMDEESee more

    Raw materials

    The main ingredients to make a polyurethane are di- and tri-isocyanates and polyols. Other materials are added to aid processing the polymer or to modify the properties of the polymer. PU foam formulation … See more

    Production

    Polyurethanes are produced by mixing two or more liquid streams. The polyol stream contains catalysts, surfactants, blowing agents (when making polyurethane foam insulation) and so on. The two components are referre… See more

    Health and safety

    Fully reacted polyurethane polymer is chemically inert. No exposure limits have been established in the U.S. by OSHA (Occupational Safety and Health Administration) or ACGIH (American Conferenc… See more

    Manufacturing

    The methods of manufacturing polyurethane finished goods range from small, hand pour piece-part operations to large, high-volume bunstock and boardstock production lines. Regardless of the end-pro… See more

    Applications

    In 2007, the global consumption of polyurethane raw materials was above 12 million metric tons, and the average annual growth rate was about 5%. Revenues generated with PUR on the global market are expect… See more

     
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  1. Polyurethane - Simple English Wikipedia, the free encyclopedia

     
  2. List of polyurethane applications - Wikipedia

    Polyurethane (PU) is popularized in the manufacturing of some of the highest quality aerodynamic components /body kits for varying automobiles (car, truck, and SUV) on the market. These components include bumpers , side skirts, roll …

  3. Polyurethane | Foam, Synthesis, Plastics | Britannica

    Nov 12, 2024 · polyurethane, any of a class of synthetic resinous, fibrous, or elastomeric compounds belonging to the family of organic polymers made by the reaction of diisocyanates (organic compounds containing two functional …

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  4. Polyurethane foam - Wikipedia

  5. The History of Polyurethane - Otto Bayer - ThoughtCo

    Mar 17, 2017 · Polyurethane is an organic polymer composed of organic units joined by carbamate (urethane) links. While most polyurethanes are thermosetting polymers that do not melt when heated, thermoplastic …

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  6. The history of polyurethane - pu-schaum.center

    The name 'polyurethane' is derived from the main urethane group NH-CO-O that is formed. PU's key to success lies in its almost legendary adaptability: polyurethanes can be flexible or rigid, hard or soft – and that in every possible …

  7. Polyurethanes (PUR) - Plastics Europe

    What is polyurethane? Polyurethane (PUR) is a resilient, flexible and durable manufactured material. There are various types of polyurethanes, which look and feel very different from each other.

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  8. Polyuréthane — Wikipédia

    Un polyuréthane ou polyuréthanne est un polymère d' uréthane, une molécule organique. On appelle uréthane, ou plus couramment « carbamate », tout composé produit par la réaction d'un isocyanate et d'un alcool conformément …

  9. Thermoplastic polyurethane - Wikipedia

  10. How polyurethane is made - material, production process, making ...

  11. What is polyurethane? - Polyurethanes

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  13. Polyurethane - Wikiwand

  14. What Polyurethane is used for and how it got to where it is today

  15. Category:Polyurethanes - Wikipedia

  16. Polyurethane - Wikipedia, the free encyclopedia - Zubiaga

  17. Polyurethane: Definition, Properties, Types and Applications

  18. Polyurethane dispersion - Wikipedia

  19. What is Polyurethane (PU)? Where is Polyurethane Used?

  20. Memory foam - Wikipedia

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