US4560902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesively bonded electroluminescent system
Assignee: BONAR KARD-O-LITE Inc ARDMORE PA 19003 A CORP OF PA
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Filing: 1983-07-18
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Granted: 1985-12-24
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Expires: 2003-07-18
Abstract
Abstract There is described an electroluminescent system in which the components are bonded to one another via an epoxy-based adhesive derived from an epihalohydrin and a bisphenol.
Inventors
- 👤 Donald R. Kardon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:05
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/22; C; C09; C09J; C09J163/00; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/40; C08; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
99 words
In an electroluminescent lamp comprised of mutually opposed electrodes, a dielectric and electroluminescent phosphor; the improvement which comprises utilizing as said dielectric a thermoplastic adhesive having a molecular weight of from about 450-75,000 and consisting essentially of a mixture of about 5-6 parts of an eqoxy resin and about 1 part of the reaction product of epihalohydrin and a bisphenol of the formula: ##STR3## wherein R and R 1 are selected from the group consisting of hydrogen, lower alkyl and mononuclear aryl and X and X 1 are selected from the group consisting of hydrogen, halogen and lower alkyl.
Claim 2
Dependent Claim
99 words
In an electroluminescent lamp comprised of mutually opposed electrodes, a dielectric and electroluminescent phosphor; the improvement which comprises utilizing as said dielectric a thermoplastic adhesive having a molecular weight of from about 450-75,000 and consisting essentially of a mixture of about 5-6 parts of an eqoxy resin and about 1 part of the reaction product of epihalohydrin and a bisphenol of the formula: ##STR3## wherein R and R 1 are selected from the group consisting of hydrogen, lower alkyl and mononuclear aryl and X and X 1 are selected from the group consisting of hydrogen, halogen and lower alkyl.
Claim 3
Dependent Claim
12 words
The lamp according to claim 1 wherein said bisphenol is bisphenol A.
Claim 4
Dependent Claim
12 words
The lamp according to claim 1 wherein said resin is a urethane.
Claim 5
Dependent Claim
12 words
The lamp according to claim 1 wherein said dielectric includes barium titanate.
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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) | 1988-12-23 | 1989-06-24 | 1989-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-23 | 1993-06-24 | 1993-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-23 | 1997-06-24 | 1997-12-24 | $7700.00 | Window Closed / Lapsed |