Electrochromic compounds and associated media and devices

Details Electrochromic compounds and associated media and devices Electrochromic compounds and associated media and devices

2008-08-25

2010-12-21

Ben, Loha (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S265000, C359S275000, C252S582000

Reexamination Certificate

active

07855821

ABSTRACT:
An electrochromic device having an electrochromic medium which includes a compound represented by the following formula:wherein R1-R10are the same or different and comprise H, an alkyl, cycloalkyl, polycycloalkyl, heterocycloalkyl, aryl, alkaryl, aralkyl, alkoxy, alkenyl, and/or alkynyl group containing approximately 1 to approximately 50 carbon atom(s), wherein the carbon atom(s) may be a linking group to, or part of, a halogen, a N, O, and/or S containing moiety, and/or one or more functional groups comprising alcohols, esters, ammonium salts, phosphonium salts, and combinations thereof; with the proviso that R2and R7each comprise at least two carbon atoms, at least one of R2and R7comprises less than 2 β hydrogen atoms and is void of a benzyl group.

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