An ultraviolet absorption composition has been developed for the
protection of packaging or container contents in the ultraviolet range of
290 nm to 390 nm, offering effective screening from all wavelengths of
solar radiation. A combination of an optical brightener with an
ultraviolet absorber has been found to provide effective screening
without adding significant color to the polymer composition. This
extended range of ultraviolet blocking over what can be achieved with
ultraviolet absorbers alone is especially valuable in food and drink
packaging applications where the contents of the packages need
ultraviolet protection to prevent discoloration or development of
undesirable flavors.
