Method for filling large area electrochromic windows
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United States of America Patent
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Mar 27, 2001
Grant Date -
N/A
app pub date -
Nov 8, 1999
filing date -
Nov 29, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The specification discloses electrochemichromic solutions and devices based on the use of solvents comprising at least about 25% 3-hydroxypropionitrile, 3,3'-oxydipropionitrile, 2-acetylbutyrolactone, 2-methylglutaronitrile, 3-methylsulfolane and mixtures thereof. The specification also discloses vacuum backfilling techniques for filling electrochemichromic cells and enhanced UV stability through solvent self-screening.
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