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Electrochromic printing medium

  • US 5,141,622 A
  • Filed: 10/29/1991
  • Issued: 08/25/1992
  • Est. Priority Date: 10/29/1991
  • Status: Expired due to Fees
First Claim
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1. An electrochromic printing medium comprising a support having an electrochromic composition coated thereon, said composition comprising an electrolyte and a leuco dye, wherein said electrolyte is a two-phase interpenetrating network comprising a solid polymeric supporting matrix and a liquid interpenetrating conductive phase.

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