Polyvinyl Acetal - A member
of the family of vinyl plastics. Polyvinyl acetal is
the general name for resins produced from a condensation
of polyvinyl alcohol with an aldehyde. There are three
main groups: polyvinyl acetal itself; polyvinyl butyl,
and polyvinyl formal. Polyvinyl acetal resins are thermoplastics
which can be processed by casting, extruding, molding
and coating, but their main uses are in adhesives, lacquers,
coatings and films.
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