Electrochromic device having a seal including an epoxy resin cured with a cycloaliphatic amine
First Claim
21. The electrochromic mirror of claim 21, wherein said mirror has a reflectance of at least about 70 percent.
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Abstract
An electrochromic variable reflectance mirror for a vehicle includes a front element and a rear element. A seal is provided to sealably bond the elements together in a spaced-apart relationship to define a chamber, and an electrochromic material is disposed in the chamber. The seal comprises an epoxy resin cured with a cycloaliphatic amine. The cycloaliphatic amine may be a bis(cycloaliphatic) amine, or more specifically, bis(aminocyclohexyl) methane (PACM). The epoxy resin may be an epoxy novolac resin such as an epoxy phenolic novolac (e.g., DEN431) or an epoxy cresol novolac resin, a bisphenol A epoxy resin, a bisphenol F epoxy resin, a tetraglycidyl methylenebisbenzenamine, or a glycidyl benzenamine.
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Citations
86 Claims
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21. The electrochromic mirror of claim 21, wherein said mirror has a reflectance of at least about 70 percent.
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24-1. The electrochromic mirror of claim 1, wherein said seal comprises a bisphenol A epoxy resin.
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37. An electrochromic mirror comprising:
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a front element;
a rear element;
a seal provided to form a sealed chamber, the sealed chamber being between said elements;
an electrochromic material disposed in said chamber; and
a reflector disposed on a surface of said rear element, wherein said seal comprises a bisphenol A epoxy resin at least partially cured with a cycloaliphatic amine. - View Dependent Claims (35, 36, 38, 39, 40, 41, 42)
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43. An electrochromic mirror comprising:
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a front element;
a rear element;
a seal provided to form a sealed chamber, the sealed chamber being between said elements;
an electrochromic material disposed in said chamber; and
a reflector disposed on a surface of said rear element, wherein said seal comprises an epoxy novolac resin at least partially cured with a cycloaliphatic amine. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. An electrochromic device comprising:
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a front element;
a rear element;
a seal provided to form a sealed chamber, the sealed chamber being between said elements; and
an electrochromic material disposed in said chamber, wherein said seal comprises an epoxy phenolic novolac resin at least partially cured with a bis(aminocyclohexyl) methane, wherein said epoxy phenolic novolac resin has the following structural formula;
wherein n has an average value from about 0.2 to about 1.6. - View Dependent Claims (57)
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58. An electrochromic mirror comprising:
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a front element including a transparent electrically conductive first electrode disposed on a rear surface thereof;
a rear element having a front surface and a rear surface;
a seal provided to form a sealed chamber, the sealed chamber being between said front and rear elements;
an electrochromic material disposed in said chamber; and
a reflector disposed on a surface of said rear element, wherein said seal comprises an epoxy phenolic novolac resin at least partially cured with a bis(aminocyclohexyl) methane, wherein said epoxy phenolic novolac resin has the following structural formula;
wherein X is hydrogen and n has an average value of about 0.2. - View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84)
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Specification