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noun, Chemistry.
a white, water-insoluble, polyvinyl acetal made with butyraldehyde, used chiefly as an interlayer in the manufacture of safety glass.


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  • Polyvinyl-chloride

    noun, Chemistry. 1. a white, water-insoluble, thermoplastic resin, derived by the polymerization of vinyl chloride: used chiefly for thin coatings, insulation, and pipings. noun 1. the full name of PVC polyvinyl chloride n. Abbr. PVC A common thermoplastic vinyl that is used in a variety of manufactured products. polyvinyl chloride (pŏl’ē-vī’nəl) A synthetic resin, composed […]

  • Polyvinyl-formal

    [fawr-mal] /ˈfɔr mæl/ noun, Chemistry. 1. a colorless, water-insoluble, polyvinyl acetal produced from partially hydrolyzed polyvinyl acetate and formaldehyde, used chiefly in the manufacture of lacquers.

  • Polyvinylidene

    [pol-ee-vahy-nil-i-deen] /ˌpɒl i vaɪˈnɪl ɪˌdin/ adjective, Chemistry. 1. pertaining to or derived from a polymer of a vinylidene compound.

  • Polyvinylidene-resin

    noun, Chemistry. 1. . noun, Chemistry. 1. any of the class of thermoplastic resins derived by the polymerization or copolymerization of a polyvinylidene compound, used similarly to the polyvinyl resins.

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