abstract |
AN OPTICAL ARTICLE MADE OF A TRANSPARENT POLYMER WHICH INCLUDES TEREPHTHALOYL MOIETIES, OPTIONALLY, OTHER AROMATIC DIACID MOIETIES; ETHYLENE GLYCOL MOIETIES; ISOSORBIDE MOIETIES; AND, OPTIONALLY, ONE OR MORE OTHER DIOL MOIETIES, WHEREIN THE POLYMER HAS AN INHERENT VISCOSITY OF AT LEAST ABOUT 0.35 DL/G AS MEASURED ON A 1OLUTION (WEIGHT/VOLUME) IN O-CHLOROPHENOL AT 25°C. |