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2. Poly(methyl methacrylate) - Wikipedia

   en.wikipedia.org/wiki/Poly(methyl_methacrylate)

   The polymer separated from the glass as a clear plastic sheet, which Röhm gave the trademarked name Plexiglas in 1933. [5] Both Perspex and Plexiglas were commercialized in the late 1930s. In the United States, E.I. du Pont de Nemours & Company (now DuPont Company) subsequently introduced its own product under the trademark Lucite.

3. Window insulation - Wikipedia

   en.wikipedia.org/wiki/Window_insulation

   Clear double glazing has a U-factor between 1.8 and 3 W/(m 2 ⋅K) or between 0.3 and 0.5 Btu/(h⋅ft 2 ⋅°F) (about R-2) Clear triple glazing has a U-factor between 0.5 and 1 W/(m 2 ⋅K) or between 0.1 and 0.2 Btu/(h⋅ft 2 ⋅°F) (about R-3). Double and triple glazing are critical for energy efficiency. Single glass windows are no longer ...

4. Acrylate polymer - Wikipedia

   en.wikipedia.org/wiki/Acrylate_polymer

   Polymethyl methacrylate is the clear break-resistant sheeting sold as acrylic glass (or simply acrylic sheet) or under the trade name Plexiglas, Perspex, etc. Polyacrylates are used in cosmetic products as rheology modifiers and film formers, and these are typically polymers of acrylic acid fluids.

5. Window insulation film - Wikipedia

   en.wikipedia.org/wiki/Window_insulation_film

   A typical window insulation film kit, consisting of plastic shrink film (folded-up) and a roll of double-sided tape. One commonly used film is a heat-shrink plastic which is attached to the window frame using double-sided pressure-sensitive tape. A hair dryer is used to remove creases and improve optical clarity.

6. Transparent ceramics - Wikipedia

   en.wikipedia.org/wiki/Transparent_ceramics

   Saint-Gobain is currently capable of producing 0.43" thick (as grown) sapphire, in 12" × 18.5" sheets, as well as thick, single-curved sheets. [23] The U.S. Army Research Laboratory is currently investigating use of this material in a laminate design for transparent armor systems. The Saint Gobain Group have commercialized the capability to ...

7. Glazing (window) - Wikipedia

   en.wikipedia.org/wiki/Glazing_(window)

   However, the additional manufacturing step adds to the cost of production, and the coating will degrade when exposed to the elements, and so can only be placed on the inside faces of a double-paned window. Generally, solar control Low-E windows are soft coat and passive Low-E windows are hard coat due to the lower emissivity of the soft coat.