Glass bulletproof

Polycarbonates are like polyesters, but their carbonyl group is linked to two -OR groups, [0 C(0R>2l- Lexan, for instance, is a polycarbonate prepared from diphenyl carbonate and a diphenol called bisphenol A. Lexan has an unusually high impact strength, making it valuable for use in machinery housings, telephones, bicycle safety helmets, and bulletproof glass. 

Polycarbonates are formed from phosgene and a diol. The most widely used polycarbonate is Lexan, a lightweight, transparent material used in bike helmets, goggles, catcher s masks, and bulletproof glass. 

Homemade vehicle armor and "bulletproof glass" using clear lex-an plastic sheets,kevlar fabric and fiberglass reinforced ceramic panels that are fired in a standard pottery kiln. 

Major polymer applications safety glass interlayer (automotive windshields), control of light, heat and sound in construction glass, bulletproof glass, adhesives and sealants, binders for rocket propellant, photoconductive papers, magnetic tapes, powder coating, wood sealers and primers, inks, ceramic binders, dry toners, wash primers, composite fiber binders... 

Bulletproof glass, which is a laminate of glass and polycarbonate, is a dramatic illustration of the utilization of brittle fracture. The glass absorbs the energy of the projectile either in elastic changes or ultimately in the creation of new surfaces when it fractures. The polymer... 

Remember You re never too old to play with toys. Especially explosive, potentially deadly, extremely expensive toys. Just think about how envious your friends and family will be when they see you driving around in your sporty new BMW 750 iL with the electrified door handles, bulletproof glass, reinflating tires, and rear nail ejectors. 

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