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2. Polyurethane - Wikipedia

   en.wikipedia.org/wiki/Polyurethane

   Polyurethane synthesis, wherein the urethane groups −NH−(C=O)−O− link the molecular units A kitchen sponge made of polyurethane foam . 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.

3. Wood flooring - Wikipedia

   en.wikipedia.org/wiki/Wood_flooring

   Polyurethane – Polyurethane floor finishes were first introduced around 1942. Water-based urethane is harder than oil-modified polyurethane and is much safer for the user. Within both categories there are many variations and other names used to describe the finish. They have very different refinishing and maintenance requirements.

4. 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 ...

5. Rite Rug Flooring - Wikipedia

   en.wikipedia.org/wiki/Rite_Rug_Flooring

   Today, RiteRug Flooring is run by the second and third generations of the founding family. [7] [8] The company has expanded its product line over 85+ years of business to include the sale and installation of hardwood, laminate, tile, and vinyl flooring. [7] RiteRug Flooring currently operates 40 stores in 11 states, 12 of which are in Central ...

6. Wood finishing - Wikipedia

   en.wikipedia.org/wiki/Wood_finishing

   A worker sprays a urethane finish onto a timber. Wood finishing refers to the process of refining or protecting a wooden surface, especially in the production of furniture where typically it represents between 5 and 30% of manufacturing costs. [1] [2]

7. Doctors Say This Is How You Can Loosen and Clear Mucus From ...

   www.aol.com/doctors-loosen-clear-mucus-chest...

   Sit on a chair with both feet on the floor. Take a slow, deep breath through your nose. Hold for 2 counts. Lean forward slightly. Cough twice—2 short coughs. Relax for a few seconds.