Method for sealing a laminated electrochromic device edge
AssigneePPG Industries Ohio, Inc.
InventorsCharles R. Coleman, Phillip C. Yu, David L. Backfisch
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Abstract
A method for sealing the circumferential edge region of a laminated electrochromic device is disclosed. The method involves cutting a circumferential groove into the edge region of the device at the ion-conducting interface of its substrates. Sealant is then applied to the groove. Sealed devices are also disclosed.
Claims23
A method for sealing the circumferential edge region of a laminated electrochromic device comprising first and second substrates and an ion-conducting material layer disposed between said first and second substrates, said method comprising:
- a) cutting, edging, molding or shaping at least one of said substrates so as to form a groove in the circumferential edge region of said laminated electrochromic device;
- and b) applying a sealant to said groove, thereby causing said sealant to contact said ion-conducting material layer.
A method for sealing the circumferential edge region of a laminated electrochromic device, wherein said circumferential edge region comprises the outer peripheral surfaces of first and second substrates and the outer peripheral surface of an ion-conducting material layer, said method comprising:
- a) cutting, edging, molding or shaping the outer peripheral surface of at least one of said substrates so as to form a groove in the circumferential edge region of said laminated electrochromic device which is contiguous with the outer peripheral surface of said ion-conducting material layer;
- and b) applying a sealant to said groove.
A laminated electrochromic device comprising an ion-conducting material layer disposed between a first substrate and a second substrate, said device having a circumferential edge region characterized by a groove containing a sealant in contact with said ion-conducting material layer, wherein said groove is formed by cutting, edging, molding or shaping at least one of said substrates.
A laminated electrochromic lens comprising an ion-conducting polymer layer disposed between the mating surfaces of first and second eyewear lenses, said laminated electrochromic lens having an edge region prone to moisture gain or loss through the outer peripheral surface of said ion-conducting polymer layer, wherein said edge region contains a groove formed by cutting, edging, molding or shaping at least one of said eyewear lenses, wherein said groove is positioned so as to locate the outer peripheral surface of said ion-conducting polymer layer within said groove and wherein said groove contains a sealant in contact with the outer peripheral surface of said ion-conducting polymer layer.
Dependencies are inferred from the claim text.