Optical bodies, comprising: a plurality of first optical layers comprising
a first polymer composition that comprises (i) a polyester portion having terephthalate
comonomer units and ethylene glycol comonomer units, and (ii) a second portion
corresponding to a polymer having a glass transition temperature of at least about
130 C.; and a plurality of second optical layers disposed in a repeating
sequence with the plurality of first optical layers. Also disclosed are optical
bodies comprising: (a) a plurality of first optical layers, each first optical
layer being oriented; and (b) a plurality of second optical layers, disposed in
a repeating sequence with the plurality of first optical layers, comprising a blend
of polymethylmethacrylate and polyvinylidene fluoride. Methods of making the above-described
optical bodies, and articles employing such optical bodies are also provided.
