Patent US4540631A successfully refreshed from Google Patents.
US4540631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of polymer using silver
Assignee: Phillips Petroleum Co
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Filing: 1983-03-28
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Granted: 1985-09-10
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Expires: 2003-03-28
Abstract
Abstract A method is provided by which a silver coating is applied to a polymeric substrate using an aqueous solution of silver nitrate. Also provided is a method for incorporation of silver as silver nitrate into a polymeric composition suitable for molding.
Inventors
- 👤 Harold D. Boultinghouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:27
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/02; C23C18/08; C08; C08J; C08J5/00; C08J7/00; C08J7/04; C08J7/044; C08J7/06; H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0333; H05K3/00; H05K3/10; H05K3/105; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31533; Y10T428/31678
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
60 words
A method for applying a silver coating to a poly(arylene sulfide) substrate, the method comprising applying to a surface of the poly(arylene sulfide) substrate treating materials consisting essentially of an aqueous solution consisting essentially of AgNO 3 ; and heating the thus-treated surface to a temperature effective for producing a silver coating on the surface of the poly(arylene sulfide) substrate.
Claim 2
Independent Claim
60 words
A method for applying a silver coating to a poly(arylene sulfide) substrate, the method comprising applying to a surface of the poly(arylene sulfide) substrate treating materials consisting essentially of an aqueous solution consisting essentially of AgNO 3 ; and heating the thus-treated surface to a temperature effective for producing a silver coating on the surface of the poly(arylene sulfide) substrate.
Claim 3
Dependent Claim
20 words
The method of claim 1 in which the surface is heated to a temperature of at least about 350° F.
Claim 4
Dependent Claim
18 words
The method of claim 2 in which the surface is heated to a temperature of about 350° F.
Claim 5
Dependent Claim
26 words
The method of claim 1 in which the AgNO 3 solution has a concentration within the range of about 0.01 to about 2 M silver nitrate.
Claim 6
Independent Claim
64 words
A method for applying a silver coating to a poly(arylene sulfide) substrate comprising the steps of increasing the surface wettability of a surface of the poly(arylene sulfide) substrate to be coated, and apply treating materials consisting essentially of an aqueous solution consisting essentially of AgNO 3 to the surface at a temperature effective for causing the deposition of a silver coating onto the surface.
Claim 7
Independent Claim
64 words
A method for applying a silver coating to a poly(arylene sulfide) substrate comprising the steps of increasing the surface wettability of a surface of the poly(arylene sulfide) substrate to be coated, and apply treating materials consisting essentially of an aqueous solution consisting essentially of AgNO 3 to the surface at a temperature effective for causing the deposition of a silver coating onto the surface.
Claim 8
Dependent Claim
19 words
The method of claim 5 in which the surface is at a temperature of at least about 350° F.
Claim 9
Dependent Claim
22 words
The method of claim 6 in which the surface is at a temperature of from about 350° F. to about 500° F.
Claim 10
Dependent Claim
25 words
The method of claim 5 in which the surface wettability of the surface to be coated is raised by contacting the surface with a flame.
Claim 11
Dependent Claim
40 words
The method of claim 5 in which the surface wettability of the surface to be coated is raised by contacting the surface with a methane flame for a time sufficient to eliminate beading of a water drop on the surface.
Claim 12
Dependent Claim
23 words
The method of claim 8 in which the aqueous AgNO 3 solution has a concentration of about 0.01 to about 2M silver nitrate.
Claim 13
Dependent Claim
13 words
The method of claim 8 in which the polymeric substrate comprises poly(phenylene sulfide).
Claim 14
Dependent Claim
19 words
An article of manufacture comprising poly(arylene sulfide) having a silver coating applied according to the method of claim 1
Claim 15
Dependent Claim
21 words
An article of manufacture comprising poly(arylene sulfide) and silver deposited on the poly(arylene sulfide) according to the method of claim 5.
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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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |