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  2. Moisture cure polyurethane - Wikipedia

    en.wikipedia.org/wiki/Moisture_cure_polyurethane

    Moisture cured polyurethane–urea coatings have been made by reacting 1,2,3-triazole rich polyether polyols with HMDI at NCO/OH eq. ratio of 1.2 to obtain isocyanate-terminated polyurethane prepolymers. The prepolymers were cured under atmospheric moisture to make polyurethane–urea free films.

  3. Polyurethane dispersion - Wikipedia

    en.wikipedia.org/wiki/Polyurethane_dispersion

    Polyurethane dispersion, or PUD, is understood to be a polyurethane polymer resin dispersed in water, rather than a solvent, although some cosolvent may be used.Its manufacture involves the synthesis of polyurethanes having carboxylic acid functionality or nonionic hydrophiles like PEG (polyethylene glycol) incorporated into, or pendant from, the polymer backbone. [1]

  4. Polyurethane - Wikipedia

    en.wikipedia.org/wiki/Polyurethane

    Polyurethane (/ ˌ p ɒ l i ˈ jʊər ə ˌ θ eɪ n,-j ʊəˈr ɛ θ eɪ n /; [1] often abbreviated PUR and PU) 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 ...

  5. List of polyurethane applications - Wikipedia

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

    Due to the closed-cell nature of rigid polyurethane foams, PUR insulation has minimal water absorption, which coupled with an appropriate cover, makes it a particularly suitable in applications where bacterial growth is a concern. Polyurethane insulation is suitable for insulating pipes with surface temperatures ranging from -196°C to 148°C. [7]

  6. Waterborne resins - Wikipedia

    en.wikipedia.org/wiki/Waterborne_resins

    Most coatings have four basic components. These are the resin, solvent, pigment and additive systems [5] but the resin or binder is the key ingredient. Continuing environmental legislation in many countries along with geopolitics such as oil production are ensuring that chemists are increasingly turning to waterborne technology for paint/coatings and since resins or binders are the most ...

  7. What Is Lube Really? Our Experts Explain When and How You ...

    www.aol.com/lifestyle/lube-really-experts...

    Water-based. Water-based lubricants feel smooth, “silky” and slippery to the touch, says Dr. Ross. “There is no clumping effect and can be used safely with condoms and sex toys.” Water ...

  8. Talk:Polyurethane - Wikipedia

    en.wikipedia.org/wiki/Talk:Polyurethane

    Answer: Polyurethane will actually break down to amines, which have "fishy" or urine smell. I would never use polyurethane products for food use, even though some of them are FDA approved. All polyurethanes undergo hydrolysis, sooner or later (even hydrolysis-resistant ones). Especially, if they are in contact with hot water (or vapors). Source.

  9. Today's Wordle Hint, Answer for #1259 on Friday, November 29 ...

    www.aol.com/todays-wordle-hint-answer-1259...

    If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1259 ahead. Let's start with a few hints.