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US 2022/0017689 A1Published application
All-donor black electrochromic polymer and method for preparing same
AssigneeAmbilight Inc.
InventorsLiyan YOU, Jianguo MEI
Life of this patent
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Abstract
An all-donor black color electrochromic polymer is disclosed as well as a method for preparing the all-donor black color electrochromic polymer. The electrochromic polymer comprises conjugated polymers, and the conjugated polymers are chemically linked, or physically blended, or both.
Claims6
An electrochromic polymer comprising at least two conjugated polymers,
- wherein,
- the electrochromic polymer and the at least two conjugated polymers consist of electron donor groups, and
- the electrochromic polymer presents a black color at a colored state.
A method to prepare an electrochromic polymer with a combined color or physical properties, the method comprising:
- preparing each of conjugated polymers such that each of the conjugated polymers is end capped with reactive functional groups by using at least one reaction monomer;
- and
- mixing the conjugated polymers together to form the electrochromic polymer such that at least a portion of the conjugated polymers are chemically linked.
Dependencies are inferred from the claim text.