ELECTROCHROMIC COMPOUNDS AND OPTICAL ARTICLES CONTAINING THEM

The invention relates to a group of novel electrochromic compounds. More specifically, it relates to benzazoles and condensed azole compounds substituted with one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HERON, Bernard Mark, GABBUTT, Christopher D, ARMITAGE, Georgina K, BERIT-DEBAT, Fabien, CROSSLEY, Daniel L, BIVER, Claudine, BROADBENT, Thomas D, ARCHAMBEAU, Samuel, AIKEN, Stuart
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMISTRY DYES HETEROCYCLIC COMPOUNDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS POLISHES
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Beschreibung
Zusammenfassung:	The invention relates to a group of novel electrochromic compounds. More specifically, it relates to benzazoles and condensed azole compounds substituted with one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.