Patent ID: 8153029

Claim:
A film made from a aqueous dispersion comprising (a) at least one electrically conductive polymer doped with at least one highly-fluorinated acid polymer and (b) a second material selected from the group consisting of an acid salt of a second polymeric acid and a combination of an acid salt of the second polymeric acid and the second polymeric acid a second polymeric acid, an acid salt of the second polymeric acid, and combinations thereof, wherein the second polymeric acid is different from the highly-fluorinated acid polymer, and wherein a 100 nm thick film made from the aqueous dispersion has an optical absorbance which is at least 0.05 absorbance units greater than the absorbance of a 100 nm thick film made from the electrically conductive polymer without component (b), in at least one wavelength in the range of 200-350 nm.