Linear polyether-containing electrochemichromic solutions and related devices
First Claim
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1. An electrochemichromic solution comprising:
- a solvent;
a redox chemical pair in solution in said solvent which colors in the presence of an applied voltage and which bleaches to a colorless condition in the absence of an applied voltage;
said solvent thickened by addition of an effective amount of at least one linear polyether.
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Abstract
The specification discloses electrochemichromic solutions and devices based on the use of from about 0.5 percent by volume of at least one linear polyether which is soluble in the electrochemichromic solution to reduce segregation without unduly affecting leakage current.
193 Citations
25 Claims
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1. An electrochemichromic solution comprising:
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a solvent; a redox chemical pair in solution in said solvent which colors in the presence of an applied voltage and which bleaches to a colorless condition in the absence of an applied voltage; said solvent thickened by addition of an effective amount of at least one linear polyether. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electrochemichromic cell comprising:
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spaced plates, each having an inwardly facing conductive surface; an electrochemichromic solution located in said cell between said inwardly facing conductive surfaces, said solution comprising; a solvent; a redox chemical pair in solution in said solvent which colors in the presence of an applied voltage and which bleaches to a colorless condition in the absence of an applied voltage; said solvent thickened by addition of at least one linear polyether which is soluble in said solvent. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. An electrochemichromic solution comprising:
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a solvent; a redox chemical pair in solution in said solvent which colors in the presence of an applied voltage and which bleaches to a colorless condition in the absence of an applied voltage; said solvent comprising at least 0.5 percent weight by volume of at least one linear polyether having a molecular weight in the range from 100,000 to 4,000,000. - View Dependent Claims (18, 19, 20)
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21. An electrochemichromic cell comprising:
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spaced plates, each having an inwardly facing conductive surface; an electrochemichromic solution located in said cell between said inwardly facing conductive surfaces, said solution comprising; a solvent; a redox chemical pair in solution in said solvent which colors in the presence of an applied voltage and which bleaches to a colorless condition in the absence of an applied voltage; said solvent thickened by addition of at least one linear polyether having a molecular weight in the range from 100,000 to 4,000,000. - View Dependent Claims (22, 23, 24, 25)
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Specification