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Acetophenone
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===Precursor to resins=== Commercially significant [[resin]]s are produced from treatment of acetophenone with [[formaldehyde]] and a [[base (chemistry)|base]]. The resulting [[copolymer]]s are conventionally described with the formula {{chem2|[(C6H5COCH)_{''x''}(CH2)_{''x''}]_{''n''} }}, resulting from [[aldol condensation]]. These substances are components of [[coating]]s and [[ink]]s. Modified acetophenone-formaldehyde resins are produced by the hydrogenation of the aforementioned ketone-containing resins. The resulting [[polyol]] can be further crosslinked with [[diisocyanate]]s.<ref name=Ullmann/> The modified resins are found in coatings, inks and [[adhesive]]s.
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