2.1. Laminated Glass Panels with PVB Interlayer
PVB – Poly(vinyl butyral) / Poly[(2-propyl-1,3-dioxane-4,6-diyl)methylene]. Molecular formula (C8H14O2)n. Non
chlorinated vinyl was invented in 1930’s and is formed by reaction of polyvinyl alcohol with butyraldehyde with further is
conducted under heat and pressure. Manufacturing of laminated safety glass panels is one of the main PVB appliances in
attempts to achieve strong binding between glasses, optical clarity, toughness and flexibility. Furthermore, PVB has
excellent adhesion with many materials such as glass. As well PVB is widely used as a film sandwiched in a safety glass.
In this research project Kuraray Europe GmbH (Germany) “Trosifol” – brand PVB type interlayer [5] was used.