Substituted metallocenes for use as anodic electrochromic...

C - Chemistry – Metallurgy – 09 – K

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C09K 9/02 (2006.01) G02F 1/15 (2006.01) G02F 1/153 (2006.01)

Patent

CA 2399893

An electrochromic device (100) comprising at least one substantially transparent substrate (120) having an electrically conductive material (120, 118) associated therewith, and an electrochromic medium (124) which comprises a solvent, a cathodic material, and an anodic electrochromic material represented by formula (I) wherein R1-R10 are the same or different and at least three of R1-R10 are the same or different and comprise a straight or branched alkyl, aryl, alkaryl, or aralkyl group containing approximately 1 to approximately 40 carbon atom(s), and/or a silyl or siloxyl group containing approximately 1 to approximately 40 silicon atom(s), wherein the carbon or silicon atom(s) may be a linking group, or part of, one or more functional groups, wherein any remainder of R1-R10 comprise H; and wherein M comprises a transition metal.

L'invention concerne un dispositif électrochromique (100) comprenant au moins un substrat sensiblement transparent (112) possédant un matériau électriquement conducteur (120, 118) associé, ainsi qu'un support électrochromique (124) comprenant un solvant, un matériau cathodique et un matériau électrochromique anodique représenté par la formule (I) dans laquelle R¿1?-R¿10? sont identiques ou différents et au moins trois parmi R¿1?-R¿10? sont identiques ou différents et comprennent un groupe alkyle, aryle, alkaryle, ou aralkyle linéaire ou ramifié renfermant approximativement entre 1 et 40 atomes de carbone et/ou un groupe silyle ou siloxyle renfermant approximativement entre 1 et 40 atomes de silicium, les atomes de carbone ou de silicium pouvant être un groupe de liaison, ou faire partie d'un ou de plusieurs groupes fonctionnels, dans lesquels les restes de R¿1?-R¿10? comprennent H; et dans lesquels M comprend un métal de transition.

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