US4206248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for depositing a selected coating having dual layers
Assignee: Eltreva AG
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Filing: 1978-03-02
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Granted: 1980-06-03
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Expires: 1998-03-02
Abstract
Abstract A process is disclosed for the production of a sun heat energy absorbing coating on a metallic substrate. The metallic substrate is pretreated for subsequent coating with a film of powder varnish and thereafter a coating based on a solid synthetic resin is deposited electrostatically or in a whirl sintering procedure. The coating consists of an inner brightening layer containing a metallic powder and an outer colored second layer absorbing the sun energy.
Inventors
- 👤 Hans Schmidlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:45
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/32; F; F24; F24S; F24S70/00; F24S70/20; F24S70/225; F24S70/25; F24S70/275; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S126/00; Y10S126/907; Y10S126/908; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
72 words
A process for production of a sun heat energy absorbing coating on a metallic substrate, said process comprising pretreating said metallic substrate for subsequent coating with a film of powder varnish; and depositing a coating of powder varnish based on solid synthetic resin electrostatically or in a whirl sintering procedure, said coating consisting of an inner brightening layer containing a metallic powder, and an outer colored second layer absorbing the sun energy.
Claim 2
Dependent Claim
72 words
A process for production of a sun heat energy absorbing coating on a metallic substrate, said process comprising pretreating said metallic substrate for subsequent coating with a film of powder varnish; and depositing a coating of powder varnish based on solid synthetic resin electrostatically or in a whirl sintering procedure, said coating consisting of an inner brightening layer containing a metallic powder, and an outer colored second layer absorbing the sun energy.
Claim 3
Dependent Claim
12 words
The process of claim 1, wherein said metallic powder is aluminum powder.
Claim 4
Dependent Claim
30 words
The process of claim 1, wherein the powder varnish utilized for forming said sun energy absorbing layer is initially colorless and is colored before being deposited on said brightening layer.
Claim 5
Dependent Claim
32 words
The process of claim 1, wherein the powder varnish utilized for forming said sun energy absorbing layer is initially colorless and is transparently dyed after having been deposited on said brightening layer.
Claim 6
Dependent Claim
14 words
The process of claim 1, wherein said powder varnish is based on polyester resins.
Claim 7
Dependent Claim
22 words
The process of claim 1, wherein said sun energy absorbing layer is deposited in a thickness of between 30 and 100 microns.
Claim 8
Dependent Claim
27 words
The process of claim 1, wherein said coating consists of a phase dividing powder varnish comprising two phases, the phase forming said brightening layer containing aluminum powder.
Claim 9
Dependent Claim
16 words
The process of claim 7, wherein the phase forming said sun energy absorbing layer is colorless.
Claim 10
Dependent Claim
23 words
The process of claim 7, wherein the phase forming said sun energy absorbing layer has been colored before the deposition of said coating.
Claim 11
Dependent Claim
14 words
The process of claim 1, wherein said brightening layer contains an additional metallic powder.
Claim 12
Dependent Claim
13 words
The process of claim 10, wherein said additional metallic powder is powdered zinc.
Claim 13
Dependent Claim
13 words
The process of claim 1, wherein said metallic substrate is formed from aluminum.
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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) | 1983-06-03 | 1983-12-03 | 1984-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-03 | 1987-12-03 | 1988-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-03 | 1991-12-03 | 1992-06-03 | $7700.00 | Window Closed / Lapsed |