US5019210A
Expired / Lapsed
US
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Method for enhancing the adhesion of polymer surfaces by water vapor plasma treatment
Assignee: International Business Machines Corp
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Filing: 1989-04-03
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Granted: 1991-05-28
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Expires: 2009-04-03
Abstract
Abstract Method for water vapor plasma treating the surface of a polymer body to enhance the adhesion of a first and second polymer surface. The method is particularly useful for polyimide surfaces.
Inventors
- 👤 Ned J. Chou
- 👤 Ronald D. Goldblatt
- 👤 John E. Heidenreich, III
- 👤 Steven E. Molis
- 👤 Luis M. Ferreiro, deceased
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:23
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/123; C08J5/00; C08J5/12; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0346; H05K3/00; H05K3/38; H05K3/381; H05K3/46; H05K3/4644; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31721
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
72 words
A method comprising: providing a first and second polymer body; treating at least a part of the surface of at least one of said first and said second polymer bodies with a water vapor containing plasma; and contacting the treated surface of at least one of said first and said second polymer bodies with at least a part of the surface of the other of said first and said second polymer bodies.
Claim 2
Independent Claim
72 words
A method comprising: providing a first and second polymer body; treating at least a part of the surface of at least one of said first and said second polymer bodies with a water vapor containing plasma; and contacting the treated surface of at least one of said first and said second polymer bodies with at least a part of the surface of the other of said first and said second polymer bodies.
Claim 3
Dependent Claim
34 words
The method of claim 1, wherein said treated surface of at least one of said first and said second polymer bodies is contacted with the treated surface of the other of said polymer bodies.
Claim 4
Dependent Claim
21 words
The method of claim 1, wherein said first and said second polymer bodies are contacted by being heated and pressed together.
Claim 5
Dependent Claim
33 words
The method of claim 3, wherein said first and said second polymer bodies are pressed together at a pressure greater than about 50 psi and at a temperature greater than about 200° C.
Claim 6
Dependent Claim
19 words
The method of claim 1, wherein each of said first and said second polymer bodies is a polyaromatic polymer.
Claim 7
Dependent Claim
19 words
The method of claim 5, wherein said polyaromatic polymer has a glass transition temperature greater than about 250° C.
Claim 8
Dependent Claim
80 words
The method of claim 1, wherein each of said first and said second polymer body is selected from the group consisting of: polyamides polyesters polyurethanes polysiloxanes phenolics polysulfides polyacetals polyethylenes polyisobutylenes polyacrylonitriles polyvinylchlorides polystyrenes polymethylmethacrylates polyvinylacetates polytetrafluoroethylenes polyisoprenes polycarbonates polyether polyimides polybenzimidazoles polybenzoxazoles polybenzothiazoles polyoxadiazoles polytriazoles polyquinoxalines polyimmidazopyrrolones and copolymers containing an aromatic constituent and a constituent selected from a vinyl and cyclobutane group, said constituents containing at least one of the group of Si, Ge, Ti, Zn and Fe.
Claim 9
Dependent Claim
16 words
The method of claim 1, wherein said first and said second polymer bodies are polyimide bodies.
Claim 10
Dependent Claim
80 words
The method of claim 1, wherein said water vapor containing plasma is generated in an electric field from an electric power of from about 10 -3 watts/cm 3 to about 1000 watts/cm 3 at a temperature of from about ambient to about the glass transition temperature of said treated polymer body and a pressure in the range from about 10 -6 atmospheres to about 5 atmospheres for a period of time ranging from about 0.1 minutes to about 1 hour.
Claim 11
Independent Claim
38 words
A method comprising: providing a polymer body; treating at least a part of the surface of said polymer body to a water vapor containing plasma; disposing on said treated surface a liquid polymer; and curing said liquid polymer.
Claim 12
Independent Claim
38 words
A method comprising: providing a polymer body; treating at least a part of the surface of said polymer body to a water vapor containing plasma; disposing on said treated surface a liquid polymer; and curing said liquid polymer.
Claim 13
Dependent Claim
25 words
The method of claim 10, wherein said polymer body is a polyaromatic polymer and wherein said liquid polymer is a precursor of a polyaromatic polymer.
Claim 14
Dependent Claim
85 words
The method of claim 10, wherein said polymer body and the polymer for which said liquid polymer is a precursor are selected from the group consisting of: polyamides polyesters polyurethanes polysiloxanes phenolics polysulfides polyacetals polyethylenes polyisobutylenes polyacrylonitriles polyvinylchlorides polystyrenes polymethylmethacrylates polyvinylacetates polytetrafluoroethylenes polyisoprenes polycarbonates polyether polyimides polybenzimidazoles polybenzoxazoles polybenzothiazoles polyoxadiazoles polytriazoles polyquinoxalines polyimmidazopyrrolones and copolymers containing an aromatic constituent and a constituent selected from a vinyl and cyclobutane group, said constituents containing at least one of the group of Si, Ge, Ti, Zn and Fe.
Claim 15
Dependent Claim
24 words
The method of claim 10, wherein said polymer body is a polyimide body and said liquid polymer is a precursor of a polyimide polymer.
Claim 16
Dependent Claim
80 words
The method of claim 10, wherein said water vapor containing plasma is generated in an electric field from an electric power of from about 10 -3 watts/cm 3 to about 1000 watts/cm 3 at a temperature of from about ambient to about the glass transition temperature of said treated polymer body and a pressure in the range from about 10 -6 atmospheres to about 5 atmospheres for a period of time ranging from about 0.1 minutes to about 1 hour.
Claim 17
Dependent Claim
31 words
The method of claim 13, wherein said liquid polyimide precursor is cured at a temperature from about 100° C. to about 400° C. for about 1 minute to about 10 hours.
Claim 18
Independent Claim
39 words
A method for enhancing the adhesion of a first and second polymer surface comprising treating at least one of said first on said second polymer surfaces with a water vapor containing plasma and thereafter bringing said surfaces into contact.
Claim 19
Independent Claim
39 words
A method for enhancing the adhesion of a first and second polymer surface comprising treating at least one of said first on said second polymer surfaces with a water vapor containing plasma and thereafter bringing said surfaces into contact.
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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) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |