Electrochromic device
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United States of America Patent
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Dec 2, 2003
Grant Date -
Sep 26, 2002
app pub date -
May 3, 2002
filing date -
Dec 14, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The electrochromic devices have an ion conductive layer formed by curing a composition comprising a bipyridinium compound represented by the formula ##STR1## a specific metallocene compound and a precursor of a polymeric solid electrolyte, between two electrically conductive substrates, at least one of which is transparent.
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