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  2. Polycarbonate - Wikipedia

    en.wikipedia.org/wiki/Polycarbonate

    A major polycarbonate market is the production of compact discs, DVDs, and Blu-ray discs. [13] These discs are produced by injection-molding polycarbonate into a mold cavity that has on one side a metal stamper containing a negative image of the disc data, while the other mold side is a mirrored surface.

  3. Cyclic olefin copolymer - Wikipedia

    en.wikipedia.org/wiki/Cyclic_olefin_copolymer

    Cyclic olefin copolymer (COC) is an amorphous polymer made by several polymer manufacturers.COC is a relatively new class of polymers as compared to commodities such as polypropylene and polyethylene.

  4. Twinwall plastic - Wikipedia

    en.wikipedia.org/wiki/Twinwall_plastic

    6mm Twinwall Polycarbonate Sheet. Twin-wall plastic, specifically twin-wall polycarbonate, is an extruded multi-wall polymer product created for applications where its strength, thermally insulative properties, and moderate cost are ideal. [1] Polycarbonate, which is most commonly formed through the reaction of Bisphenol A and Carbonyl Chloride ...

  5. 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.

  6. Plastic film - Wikipedia

    en.wikipedia.org/wiki/Plastic_film

    Plastic film is a thin continuous polymeric material. Thicker plastic material is often called a "sheet". Thicker plastic material is often called a "sheet". These thin plastic membranes are used to separate areas or volumes, to hold items, to act as barriers, or as printable surfaces.

  7. File:CD layers.svg - Wikipedia

    en.wikipedia.org/wiki/File:CD_layers.svg

    A. A polycarbonate disc layer has the data encoded by using lands and pits. B. A reflective layer reflects the laser back. C. A lacquer layer is used to prevent oxidation D. Artwork is screen printed on the top of the disc. E. A laser beam reads the polycarbonate disc, is reflected back, and read by the player.

  8. Plastic - Wikipedia

    en.wikipedia.org/wiki/Plastic

    In 2018 more than 343 million tons of plastic waste were generated, 90% of which was composed of post-consumer plastic waste (industrial, agricultural, commercial and municipal plastic waste). The rest was pre-consumer waste from resin production and manufacturing of plastic products (e.g. materials rejected due to unsuitable color, hardness ...

  9. Liquid-crystal polymer - Wikipedia

    en.wikipedia.org/wiki/Liquid-crystal_polymer

    Molecular structure of Kevlar Molecular structure of the LCP Vectran [5]. Liquid crystallinity in polymers may occur either by dissolving a polymer in a solvent (lyotropic liquid-crystal polymers) or by heating a polymer above its glass or melting transition point (thermotropic liquid-crystal polymers). [6]

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