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pol'yvi'nyl ac'etal



Chem.
1. any of the class of thermoplastic resins derived by the condensation of an aldehyde with polyvinyl alcohol.
2. the slightly yellow, water-insoluble resin produced from partially hydrolyzed polyvinyl acetate and formaldehyde: used chiefly in the manufacture of lacquers, photographic film, and adhesives.

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

polyvinylpolyvinyl acetate

 

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