Polyvinyl Butyral Resin For Paint Glass Adhesive Polyvinyl butyral Resin(or PVB) is a resin mostly used for applications that require strong binding, optical clarity, adhesion to many surfaces, toughness and flexibility. It is prepared from polyvinyl alcohol by reaction with butyraldehyde. The major application is laminated safety glass for automobile windshields.Trade names for PVB-films include KB PVB, Saflex, GlasNovations, Butacite, WINLITE, S-Lec, Trosifol and EVERLAM. Other names Poly(vinyl butyral) Poly[(2-propyl-1,3-dioxane-4,6-diyl)methylene] CAS Number 915977-69-4 Chemical formula (C8H14O2)n ECHA InfoCard 100.126.112 1. PVB RESIN Physical properties: A. The appearance is white and easy to flow granular powder, the density is 0.17-0.4g/cm3, the temperature can be adjusted to minus 60 ° C, th…