The overall objective of this proposed project is to devise the best possible urethane-carbonate copolymer plastic substance relative to producing high performing goggles and corrective lenses. it is known from past research that transparent high performing plastic substances can be synthezied using a selected monomeric diol, certain aliphatic polycarbonate diols, and a particular aliphatic dissocyanate. from past work, it is known that the above described urethanecarbonate copolymers have very high impact resistance which is important for the production for goggles for eye protection. also, these plastic substances have much better abrasion resistance than the "polycarbonate" presently used in lenses. past testing has also shown that the above urethane-carbonate copolymer systems have outstanding durability. in fact the systems show the unique property of simultaneously having high hydrolitic stability and high oxidative resistance. by the present proposed project, a series of the above described urethan-carbonate copolymers would be synthesized and screen tested
