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pol'yvi'nyl bu'tyral



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

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

polyvinyl alcoholpolyvinyl chloride

 

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