A Thermoplastic Transparent Adhesive for Bonding Polycarbonate to Glass

Abstract : Ethylene terpolymers varying in molecular weight, hydroxyl content, and degree of partial crosslinking were investigated for the bonding of glass and polycarbonate used in armored windows. The primary requisites for the adhesive were that it be thermoplastic, optically clear, hydrolytically stable, and maintain the integrity of glass-polycarbonate laminate when exposed to either thermal cycling from -65 to + 165 F or ballistic impact. Ethylene terpolymer fulfilled the performance requirements.