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Light management films with zirconia particles

  • US 20060204745A1
  • Filed: 03/14/2005
  • Published: 09/14/2006
  • Est. Priority Date: 03/14/2005
  • Status: Abandoned Application
First Claim
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1. A light management film comprising an optical layer having a microstructured surface, the optical layer comprising (a) a polymeric material;

  • and (b) a plurality of surface-modified zirconia particles, wherein the zirconia particles comprise 0.1 to 8 weight percent yttrium based on a weight of inorganic oxides in the zirconia particles and wherein the zirconia particles have an average primary particle size no greater than 30 nanometers, a dispersion index of 1 to 3, a ratio of intensity-average particle size to volume-average particle size no greater than 3.0, and a crystal structure that is at least 70 percent cubic, tetragonal, or a combination thereof.

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