White Powder Pvb Resin Polyvinyl Butyral Resin 

White Powder Pvb Resin Polyvinyl Butyral Resin For Paint And Glass Industry Polyvinyl butyral (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, the glass transition tem…