US4337279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for increasing the peel strength of metal-clad polymers
Assignee: Honeywell UOP LLC
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Filing: 1981-01-23
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Granted: 1982-06-29
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Expires: 2001-01-23
Abstract
Abstract The peel strength of metal-clad polymers may be increased by treating a polymer such as polysulfone with a gas plasma prior to the deposition of the metal thereon. The gas plasma is provided for by the introduction of a gas such as helium, argon, etc. over the surface of the polymer while said polymer is in an electric field in which the power may range from about 50 to about 15,000 watts.
Inventors
- 👤 Anthony J. Polak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:24
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/123; C23; C23C; C23C14/00; C23C14/02; C23C14/021; C23C14/022; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2053; C23C18/2066; H; H05; H05K; H05K3/00; H05K3/38; H05K3/381; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0333; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/0154; H05K2203/00; H05K2203/09; H05K2203/095; H05K3/10; H05K3/18; H05K3/181; H05K3/388; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
115 words
A process for increasing the peel strength of a metal-clad polysulfone polymer which comprises subjecting said polysulfone polymer to a gas plasma comprising the presence of a treatment gas and an electrical field generated from an electrical power of from about 50 to about 15000 watts, at a temperature of from about ambient to about the glass transition temperature of said polysulfone polymer and a pressure in the range of from about 5 atmospheres to about 10 -6 torr for a period of time ranging from about 5 minutes to about 4 hours and thereafter depositing a metal on the resultant treated polysulfone polymer and thereafter recovering the metal-clad polysulfone polymer possessing increased peel strength.
Claim 2
Dependent Claim
115 words
A process for increasing the peel strength of a metal-clad polysulfone polymer which comprises subjecting said polysulfone polymer to a gas plasma comprising the presence of a treatment gas and an electrical field generated from an electrical power of from about 50 to about 15000 watts, at a temperature of from about ambient to about the glass transition temperature of said polysulfone polymer and a pressure in the range of from about 5 atmospheres to about 10 -6 torr for a period of time ranging from about 5 minutes to about 4 hours and thereafter depositing a metal on the resultant treated polysulfone polymer and thereafter recovering the metal-clad polysulfone polymer possessing increased peel strength.
Claim 3
Dependent Claim
19 words
The process as set forth in claim 1 in which the treatment gas in said gas plasma is helium.
Claim 4
Dependent Claim
18 words
The process as set forth in claim 1 in which the treatment gas in said plasma is argon.
Claim 5
Dependent Claim
19 words
The process as set forth in claim 1 in which the treatment gas in said gas plasma is nitrogen.
Claim 6
Dependent Claim
20 words
The process as set forth in claim 1 in which the treatment gas in said gas plasma is carbon tetrafluoride.
Claim 7
Dependent Claim
14 words
The process as set forth in claim 1 in which said metal is copper.
Claim 8
Dependent Claim
14 words
The process as set forth in claim 1 in which said metal is brass.
Claim 9
Dependent Claim
14 words
The process as set forth in claim 1 in which said metal is nickel.
Claim 10
Dependent Claim
14 words
The process as set forth in claim 1 in which said metal is aluminum.
Claim 11
Dependent Claim
14 words
The process as set forth in claim 1 in which said metal is zinc.
References Cited (Backward Citations)
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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) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |