US4022925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating metal surfaces with synthetic resins
Assignee: Polymer-Physik GmbH and Co KG
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Filing: 1975-06-06
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Granted: 1977-05-10
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Expires: 1995-06-06
Abstract
Abstract A process is provided for coating metal surfaces with synthetic resins in which, prior to application of synthetic resin, said metal surfaces are irradiated with high energy rays in presence of at least one organic compound and/or of at least one organosilicon-oxygen compound (silicones) and only then is the metal surface coated with synthetic resin in the usual manner.
Inventors
- 👤 Franz Gottfried Reuter
- 👤 Peter Holl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:15
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/06; B05D3/068; B05D2202/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
68 words
Process for coating a metal surface with a synthetic resin which comprises irradiating the metal surface prior to the application of the synthetic resin with high energy rays consisting essentially of electrons in the presence of a composition containing at least one organic compound or at least one organosilicon-oxygen compound, and subsequently coating the metal surface with the synthetic resin, and wherein said composition comprises normally gaseous hydrocarbons.
Claim 2
Dependent Claim
68 words
Process for coating a metal surface with a synthetic resin which comprises irradiating the metal surface prior to the application of the synthetic resin with high energy rays consisting essentially of electrons in the presence of a composition containing at least one organic compound or at least one organosilicon-oxygen compound, and subsequently coating the metal surface with the synthetic resin, and wherein said composition comprises normally gaseous hydrocarbons.
Claim 3
Dependent Claim
35 words
Process for coating a metal surface with a synthetic resin according to claim 1 in which the metal surface is coated with synthetic resin powder having a particle size of from 12 to 50 μ.
Claim 4
Dependent Claim
15 words
Process as claimed in claim 2, in which the synthetic resin is an epoxide resin.
Claim 5
Dependent Claim
65 words
Process for coating a metal surface with a synthetic resin which comprises irradiating the metal surface prior to the application of the synthetic resin with high energy rays consisting of electrons in the presence of a composition containing at least one organic compound or at least one organosilicon-oxygen compound, and subsequently coating the metal surface with synthetic resin, and wherein said composition comprises oily silicones.
Claim 6
Dependent Claim
65 words
Process for coating a metal surface with a synthetic resin which comprises irradiating the metal surface prior to the application of the synthetic resin with high energy rays consisting of electrons in the presence of a composition containing at least one organic compound or at least one organosilicon-oxygen compound, and subsequently coating the metal surface with synthetic resin, and wherein said composition comprises oily silicones.
Claim 7
Dependent Claim
25 words
Process according to claim 4, wherein the metal surface is coated with synthetic resin powder having a particle size of from 12 to 50 μ.
Claim 8
Dependent Claim
15 words
Process as claimed in claim 5 in which the synthetic resin is an epoxide resin.
Claim 9
Dependent Claim
90 words
Process for coating a metal surface with a synthetic resin which comprises irradiating the metal surface prior to the application of the synthetic resin with high energy rays consisting of electrons in the presence of a composition containing at least one organic compound or at least one organosilicon-oxygen compound, and subsequently coating the metal surface with the synthetic resin, and in which the metal surface is kept substantially free from fat and oil, and the irradiation is carried out in the presence of at least one gaseous organic hydrocarbon compound.
Claim 10
Dependent Claim
90 words
Process for coating a metal surface with a synthetic resin which comprises irradiating the metal surface prior to the application of the synthetic resin with high energy rays consisting of electrons in the presence of a composition containing at least one organic compound or at least one organosilicon-oxygen compound, and subsequently coating the metal surface with the synthetic resin, and in which the metal surface is kept substantially free from fat and oil, and the irradiation is carried out in the presence of at least one gaseous organic hydrocarbon compound.
Claim 11
Dependent Claim
25 words
Process according to claim 7, wherein the metal surface is coated with synthetic resin powder having a particle size of from 12 to 50 μ.
Claim 12
Dependent Claim
15 words
Process as claimed in claim 8, in which the synthetic resin is an epoxide resin.
References Cited (Backward Citations)
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US2989633A
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US3374111A
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US3418155A
Cited
US3619242A
Cited
US3681103A
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US3632386A
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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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |