Plastics reaction with, phosgene

Toluene diisocyanale is widely used in the manufacture of urethane plastics, particularly the urethane foamed plastics. Another isocyanate, diphenylmethane 4,4 -diisocyanaie, is produced by reaction of aniline and formaldehyde, followed by reaction with phosgene hcho coo.. 

Polycarbonate is a very hard and light plastic used for protection devices such as football helmets. It is made by reacting bisphenol A with phosgene in the reactions shown in Figure 1 1-... 

Polycarbonates are a class of thermoplastic polymers that are used in the plastic lenses of eyeglasses and in the shells of bicycle helmets. A polycarbonate is made from the reaction of bisphenol A (BPA) with phosgene (COCl2) ... 

The reaction of phosgene with ethyne is not straightforward a compound of undefined constitution is produced from the passage of ethyne into liquid phosgene at -S C the resulting brown liquid is converted, at ca. 100 C, into a plastic solid [79]. Similar poorly characterized reaction products were also generated by the treatment of ethyne with phosgene in an autoclave at 100 "C [79,1672]. 

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