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  Production process of PVB:   Currently,Polyvinyl Butyral Resin (PVB) is mostly produced using an extrusion casting method. China has made some high-end PVB in the past, especially for the military, like in aircraft and military vehicles, …

Yellowing of the Polyvinyl butyral resin (PVB) at the edges of laminated glass is a rare but important quality issue. You usually see it as two yellow spots about 5 cm wide along the edges. Since this tends to happen often, many customers …