Polyvinyl acetal

What is Polyvinyl acetal?

Polyvinyl acetal definition and meaning on Dictionary terms:
noun Chemistry.

any of the class of thermoplastic resins derived by the condensation of an aldehyde with polyvinyl alcohol.
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.