Removable imbibition composition of photochromic compound and kinetic enhancing additive
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United States of America Patent
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Aug 13, 2002
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app pub date -
Nov 28, 2000
filing date -
Nov 28, 2000
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Abstract
Described are organic photochromic imbibition compositions that incorporate kinetic enhancing additive(s). Kinetic enhancing additives include epoxy-containing compounds, organic polyols and/or plasticizers that improve the performance of organic photochromic compounds as determined in the Photochromic Performance Test. Also described is a process for incorporating kinetic enhancing additives into polymeric substrates with organic photochromic compounds and the resulting photochromic articles produced by such a process.
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