US6166849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic glycidyl amine-based epoxy edge seals for electrooptic devices
Assignee: PPG Industries Ohio Inc
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Filing: 1998-12-15
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Granted: 2000-12-26
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Expires: 2018-12-15
Abstract
Abstract A method for sealing the peripheral edge surface of a laminated electrooptic device, wherein an aromatic glycidyl amine-based epoxy is used as a seal. Sealed devices are also disclosed.
Inventors
- 👤 Charles R. Coleman
- 👤 Barbara J. George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:23
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/153; G02F1/161
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
83 words
A method for sealing the peripheral edge surface of a laminated electrochromic device, said peripheral edge surface comprising the outer peripheral surfaces of first and second substrates and the outer peripheral surface of an ion-conducting material layer, said method comprising: (a) mixing an aromatic glycidyl amine resin with an effective amount of amine-based curing agent, (b) applying said mixture to said peripheral edge surface so as to contact the outer peripheral surface of said ion-conducting material layer, and (c) curing said mixture thereon.
Claim 2
Independent Claim
83 words
A method for sealing the peripheral edge surface of a laminated electrochromic device, said peripheral edge surface comprising the outer peripheral surfaces of first and second substrates and the outer peripheral surface of an ion-conducting material layer, said method comprising: (a) mixing an aromatic glycidyl amine resin with an effective amount of amine-based curing agent, (b) applying said mixture to said peripheral edge surface so as to contact the outer peripheral surface of said ion-conducting material layer, and (c) curing said mixture thereon.
Claim 3
Dependent Claim
68 words
The method of claim 1, wherein said aromatic glycidyl amine resin is represented as follows: ##STR3## where: R 2 is phenylene or naphthylene; X is N, NR 3 , CH 2 N, CH 2 NR 3 , O and/or C(O)--O; R 3 is an alkyl group containing 1-4 carbon atoms, a cyanoethyl group or a cyanopropyl group; n is 1 or 2; and m is 2 to 4.
Claim 4
Dependent Claim
11 words
The method of claim 1, wherein said amine resin comprises N,N,N',N'-tetraglycidyl-m-xylenediamine.
Claim 5
Dependent Claim
12 words
The method of claim 1, wherein said mixture is applied by extrusion.
Claim 6
Dependent Claim
12 words
The method of claim 1, wherein said device is an electrochromic lens.
Claim 7
Dependent Claim
12 words
An edge-sealed laminated electrochromic device prepared by the method of claim 1.
Claim 8
Dependent Claim
65 words
The device of claim 6, wherein said resin is represented as follows: ##STR4## where: R 2 is phenylene and/or naphthylene; X is N, NR 3 , CH 2 N, CH 2 NR 3 , O and/or C(O)--O; R 3 is an alkyl group containing 1-4 carbon atoms, a cyanoethyl group or a cyanopropyl group; n is 1 or 2; and m is 2 to 4.
Claim 9
Dependent Claim
17 words
A laminated electrochromatic device prepared by the method of claim 1, wherein said amine resin comprises N,N,N',N'-tetraglycidyl-m-xylenediamine.
Claim 10
Dependent Claim
86 words
A laminated electrochromic lens comprising an ion-conducting polymer layer disposed between a coated first lens and a second less, said laminated electrochromic lens having a peripheral edge surface prone to moisture gain or loss through said ion-conducting polymer layer, wherein said peripheral edge surface contains a mixture comprising an aromatic glycidyl amine resin and an effective amount of amine-based curing agent wherein said mixture is cured thereon and said mixture is in contact with said ion-conducting polymer layer on said peripheral edge surface of the lense.
Claim 11
Dependent Claim
86 words
A laminated electrochromic lens comprising an ion-conducting polymer layer disposed between a coated first lens and a second less, said laminated electrochromic lens having a peripheral edge surface prone to moisture gain or loss through said ion-conducting polymer layer, wherein said peripheral edge surface contains a mixture comprising an aromatic glycidyl amine resin and an effective amount of amine-based curing agent wherein said mixture is cured thereon and said mixture is in contact with said ion-conducting polymer layer on said peripheral edge surface of the lense.
Claim 12
Dependent Claim
12 words
The lens of claim 9, wherein said ion-conducting polymer is an ionomer.
Claim 13
Dependent Claim
15 words
The lens of claim 9, wherein said ion-conducting polymer is an AMPSA homopolymer or copolymer.
Claim 14
Dependent Claim
68 words
The lens of claim 9, wherein said aromatic glycidyl amine resin is represented as follows: ##STR5## where: R 2 is phenylene and/or naphthylene; X is N, NR 3 , CH 2 N, CH 2 NR 3 , O and/or C(O)--O; R 3 is an alkyl group containing 1-4 carbon atoms, a cyanoethyl group or a cyanopropyl group; n is 1 or 2; and m is 2 to 4.
Claim 15
Independent Claim
93 words
A method for sealing the peripheral edge surface of a laminated electrochromic device, said peripheral edge surface comprising the outer peripheral surfaces of first and second substrates and outer peripheral surface of an ion-conducting material layer, said method comprising (a) applying an aromatic glycidyl amine resin to said peripheral edge surface, (b) applying an effective amount of amine-based curing agent to said resin and mixing in situ therewith, and (c) curing said mixture thereon wherein said mixture is in contact with said ion-conducting polymer layer on said peripheral edge surface of the lens.
Claim 16
Independent Claim
93 words
A method for sealing the peripheral edge surface of a laminated electrochromic device, said peripheral edge surface comprising the outer peripheral surfaces of first and second substrates and outer peripheral surface of an ion-conducting material layer, said method comprising (a) applying an aromatic glycidyl amine resin to said peripheral edge surface, (b) applying an effective amount of amine-based curing agent to said resin and mixing in situ therewith, and (c) curing said mixture thereon wherein said mixture is in contact with said ion-conducting polymer layer on said peripheral edge surface of the lens.
Claim 17
Dependent Claim
12 words
An edge-sealed laminated electrochromic device prepared by the method of claim 13.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-12-26 | 2004-06-26 | 2004-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-12-26 | 2008-06-26 | 2008-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-12-26 | 2012-06-26 | 2012-12-26 | $7700.00 | Window Closed / Lapsed |