A British aircraft manufacturing company invented a kind of unbreakable glass for use in airplanes. It is a kind of multi-layer glass that is sandwiched with debris and glued into a transparent plastic film. This polyurethane-based plastic film has a viscous semi-liquid consistency. When someone tries to break it, the shocked polyurethane film will slowly gather together and restore its unique integrity. This kind of glass can be used in cars to prevent car theft.
bulletproof
Bulletproof glass is a composite material obtained by special processing of glass (or plexiglass) and high-quality engineering plastics. It is usually a transparent material, such as PVB/polycarbonate thermoplastic (generally Lixian resin, lexan resin). Also called LEXAN PC RESIN). It has the appearance of ordinary glass and the behavior of transmitting light, which provides a certain degree of protection for the shooting of small arms. The thickest pc board can be 136 mm thick, the maximum width is 2166 mm wide, and the effective time is 6664 days.