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Electrochromic monomers and polymers for a switchable window

  • US 7,505,191 B2
  • Filed: 07/06/2007
  • Issued: 03/17/2009
  • Est. Priority Date: 06/25/2001
  • Status: Expired due to Term
First Claim
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1. An electrochromic monomer having a formula selected from the group consisting essentially of:

  • (a) 3-methyl-3′

    -propyl-3,4-dihydro-2H-thieno(3,4-b)(1,4)dioxepine;

    (b) 3,3-diethyl-3,4-dihydro-2H,7H-(1,4)dioxepino(2,3-c)pyrrole;

    (c) 3,4-bis-R-thiophene, wherein R comprises one of;

    (i) 2,2,2-trifluoro-ethoxy;

    (ii) 2-fluoro-ethoxy;

    (iii) 2,3,4,5,6, pentafluorobenzoxy; and

    (iii) 2,2-difluoro-1-3-propoxy; and

    (d) 6,6-dimethyl-6,7-dihydro-5H-4,8-dioxa-2-thia-6-sila-azulene.

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