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Method of making multilayer optical film comprising layer-by-layer self-assembled layers and articles

  • US 9,829,604 B2
  • Filed: 12/04/2013
  • Issued: 11/28/2017
  • Est. Priority Date: 12/20/2012
  • Status: Active Grant
First Claim
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1. A method of making a multilayer optical film comprising:

  • providing a multilayer optical film comprising a plurality of alternating polymeric layers of a low refractive index layer and a high refractive index layer, wherein the high refractive index layer comprises a birefringent thermoplastic polymer and the plurality of alternating polymeric layers reflect at least one bandwidth of electromagnetic radiation ranging from ultraviolet to near infrared;

    disposing onto the multilayer optical film a plurality of layers deposited by layer-by-layer self-assembly of nanoparticles, polymers, or a combination thereof,wherein the plurality of layers deposited by layer-by-layer self-assembly comprise alternating stacks of low refractive index bi-layers and high refractive index bi-layers, wherein the plurality of bi-layers reflect at least one bandwidth of electromagnetic radiation ranging from ultraviolet to near infrared, wherein the plurality of bi-layers reflect at least a portion of the same bandwidth of electromagnetic radiation as the multilayer optical film, and wherein the plurality of bi-layers reflect at least a portion of a different bandwidth of electromagnetic radiation as the multilayer optical film.

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