US4585699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying microwave energy to heat treating coatings on dielectric supports, in particular electrically conductive coatings, and products obtained by the method
Assignee: Centre National de la Recherche Scientifique
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Filing: 1984-09-18
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Granted: 1986-04-29
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Expires: 2004-09-18
Abstract
Abstract The method comprises the following steps: depositing the coating (20) to be treated on a first face (11) of the dielectric support (10); depositing a layer (30) of electrically conductive material on a second face (12) of the dielectric support (10) opposite to the first face and generally parallel thereto, the thickness of said layer (30) being of the same order as the penetration depth δ in the material thereof of the selected electromagnetic wave; and applying microwave energy to the assembly thus constituted in such a manner that the direction of vibration of the electric field is substantially parallel to the coating (20) to be treated and to the layer (30) of conductive material.
Inventors
- 👤 Andre-Jean Berteaud
- 👤 Rene Clement
- 👤 Alain Germain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:11
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/12; H05K3/1283; B; B05; B05D; B05D3/00; B05D3/02; B05D3/0254; B05D3/029; H05B; H05B6/00; H05B6/64; H05B6/78; H10; H10D; H10D84/00; H10D84/01; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; H05K2203/00; H05K2203/10; H05K2203/102; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
129 words
A method of heat treating a coating deposited on a dielectric support, by the application of microwave energy, the method comprising the following steps: (1) depositing the coating to be treated on a first face of the dielectric support; (2) depositing a layer of electrically conductive material on a second face of the dielectric support opposite to the first face and generally parallel thereto, the thickness of said layer being not greater than 10 δ, where δ is the penetration depth in the material thereof of the selected electromagnetic wave; and (3) applying microwave energy to the assembly thus constituted in such a manner that the direction of vibration of the electric field is substantially parallel to the coating to be treated and to the layer of conductive material.
Claim 2
Independent Claim
129 words
A method of heat treating a coating deposited on a dielectric support, by the application of microwave energy, the method comprising the following steps: (1) depositing the coating to be treated on a first face of the dielectric support; (2) depositing a layer of electrically conductive material on a second face of the dielectric support opposite to the first face and generally parallel thereto, the thickness of said layer being not greater than 10 δ, where δ is the penetration depth in the material thereof of the selected electromagnetic wave; and (3) applying microwave energy to the assembly thus constituted in such a manner that the direction of vibration of the electric field is substantially parallel to the coating to be treated and to the layer of conductive material.
Claim 3
Dependent Claim
18 words
A heat treatment method according to claim 1, wherein the coating to be treated includes electrically conductive material.
Claim 4
Dependent Claim
33 words
A heat treatment method according to claim 2, wherein the thickness of the coating to be treated is of the same order as the penetration depth δ therein of the selected electromagnetic radiation.
Claim 5
Dependent Claim
20 words
A heat treatment method according to claim 1, wherein the electrically conductive material deposited in step (2) is a metal.
Claim 6
Dependent Claim
32 words
A heat treatment method according to claim 1, wherein the electrically conductive layer is deposited in step (2) by depositing an electrically conductive ink on the second face of the dielectric support.
Claim 7
Dependent Claim
29 words
A heat treatment method according to claim 1, wherein the electrically conductive layer is deposited in step (2) by depositing metal on the second face of the dielectric support.
Claim 8
Dependent Claim
31 words
A heat treatment method according to claim 1, wherein the electrically conductive layer is deposited in step (2) by gluing a metal film on the second face of the dielectric support.
Claim 9
Dependent Claim
31 words
A heat treatment method according to claim 1, wherein the electrically conductive layer is deposited in step (2) by placing the second face of the dielectric support on a metal member.
Claim 10
Dependent Claim
25 words
A heat treatment method according to claim 1, wherein the coating deposited in step (1) is a heat polymerizable ink containing metal or carbon particles.
Claim 11
Dependent Claim
10 words
A product obtained by performing the method of claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |