Electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films, and processes for making such solid films and devices

  • US 5,910,854 A
  • Filed: 03/26/1997
  • Issued: 06/08/1999
  • Est. Priority Date: 02/26/1993
  • Status: Expired due to Term
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First Claim
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1. A variable transmission window assembly suitable for use as an architectural or vehicular glazing, said window assembly comprising:

  • a first glass substrate having a first transparent conductor coated surface;

    a second glass substrate having a second transparent conductor coated surface, said second substrate positioned in substantially parallel spaced-apart relationship with said first substrate and with said first and second conductor coated surfaces facing each other; and

    an electrochromic medium disposed between said first and second substrates whereby the transmission of light through said electrochromic medium is changed when an electrical potential is applied thereto and wherein said electrochromic medium comprises a plasticized, cross-linked polymeric solid film formed by curing an electrochromic monomer composition that includes at least one polyfunctional component capable of cross-linking, at least one anodic electrochromic compound, at least one cathodic electrochromic compound and a plasticizer.

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