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  2. Shellac - Wikipedia

    en.wikipedia.org/wiki/Shellac

    It was also often used on kitchen cabinets and hardwood floors, prior to the advent of polyurethane. [citation needed] Until the advent of vinyl, most gramophone records were pressed from shellac compounds. [24] [25] From 1921 to 1928, 18,000 tons of shellac were used to create 260 million records for Europe. [12]

  3. Home Depot - Wikipedia

    en.wikipedia.org/wiki/Home_Depot

    This is an accepted version of this page This is the latest accepted revision, reviewed on 4 January 2025. American multinational home improvement supplies retailing company The Home Depot, Inc. An aerial view of a Home Depot in Onalaska, Wisconsin Company type Public Traded as NYSE: HD DJIA component S&P 100 component S&P 500 component Industry Retail (home improvement) Founded February 6 ...

  4. Styrene-butadiene - Wikipedia

    en.wikipedia.org/wiki/Styrene-butadiene

    Styrene-butadiene or styrene-butadiene rubber (SBR) describe families of synthetic rubbers derived from styrene and butadiene (the version developed by Goodyear is called Neolite [1]).

  5. Spandex - Wikipedia

    en.wikipedia.org/wiki/Spandex

    Chemical route to polyurethane polymer used in production of spandex. Spandex is mainly composed of a polyurea derived from the reaction of a diol and a diisocyanate. Two classes of spandex are defined by the "macrodiols". One class of macrodiols is the oligomer produced from tetrahydrofuran (i.e. polytetrahydrofuran).

  6. Polyethylene terephthalate - Wikipedia

    en.wikipedia.org/wiki/Polyethylene_terephthalate

    Excess MEG is distilled off at higher temperature with the aid of vacuum. The second transesterification step proceeds at 270–280 °C, with continuous distillation of MEG as well. [41] The reactions can be summarized as follows: First step C 6 H 4 (CO 2 CH 3) 2 + 2 HOCH 2 CH 2 OH → C 6 H 4 (CO 2 CH 2 CH 2 OH) 2 + 2 CH 3 OH Second step

  7. Subsidy Scorecards: University of Arkansas at Little Rock

    projects.huffingtonpost.com/projects/ncaa/...

    51 to 75%. More than 76% subsidized. SOURCE: Integrated Postsecondary Education Data System, University of Arkansas at Little Rock (2014, 2013, 2012, 2011, 2010).

  8. Dielectric strength - Wikipedia

    en.wikipedia.org/wiki/Dielectric_strength

    In physics, the term dielectric strength has the following meanings: . for a pure electrically insulating material, the maximum electric field that the material can withstand under ideal conditions without undergoing electrical breakdown and becoming electrically conductive (i.e. without failure of its insulating properties).

  9. Sulfuric acid - Wikipedia

    en.wikipedia.org/wiki/Sulfuric_acid

    Although nearly 100% sulfuric acid solutions can be made, the subsequent loss of SO 3 at the boiling point brings the concentration to 98.3% acid. The 98.3% grade, which is more stable in storage, is the usual form of what is described as "concentrated sulfuric acid".

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