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.degree. 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.
