ELECTROCHROMIC FORMULATION, METHOD FOR THE PRODUCTION THEREOF, AND ORGANIC ELECTROCHROMIC COMPONENT
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Abstract
Formulations can be used in organically based electrochromic components, such as for the production of state indicators, the activated state of which is maintained for as long as possible without an electric current. Organically based electrochromic formulations contain one or more optionally cathodically (coloring) activatable electrochromic coloring systems, as well as an anodically activatable antagonist formed of an amine which dimerizes to a hydrazinium salt by releasing an electron. Titanium dioxide is introduced as an image background (maximum opacity), and additionally a dispersant is introduced which can be crosslinked or partly crosslinked.
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Citations
22 Claims
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1-7. -7. (canceled)
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8. A bistable switchable electrochromic formulation comprising:
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a cathodically switchable electrochromic color system; an anodically switchable antagonist having the following structure I - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for producing a bistable switchable electrochromic formulation, comprising:
providing an anodically switchable antagonist having the following structure I
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22. An organic electrochromic component comprising:
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at least first and second electrodes; and a bistable switchable electrochromic formulation sandwiched between the first and second electrodes, the electrochromic formulation comprising; a cathodically switchable electrochromic color system; an anodically switchable antagonist having the following structure I
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Specification