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US4830889A
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US
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Co-deposition of fluorinated carbon with electroless nickel
Assignee: WEAR-COTE INTERNATIONAL Inc 101 TENTH ST PO BOX 777 ROCK ISLAND ILLINOIS 61204-0777
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Filing: 1987-09-21
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Granted: 1989-05-16
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Expires: 2007-09-21
Abstract
Abstract A process for co-depositing fluorinated carbon with electroless nickel which provides a uniformly dispersed co-deposit. The process includes the use of a non-ionic, wetting agent in combination with a cationic wetting agent for the suspension of fluoronated carbon in the electroless nickel solution.
Inventors
- 👤 James R. Henry
- 👤 Ernest M. Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:27
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
A process for co-deposition of fluorinated carbon with electroless nickel, comprising the steps of: preparing an electroless nickel plating solution; preparing a suspension of fluorinated carbon; mixing said solution and said suspension to form a stable plating bath including fluorinated carbon present in an amount ranging from about 5 to about 50 grams per liter, nickel present in an amount ranging from about 3.0 to about 9.0 grams per liter, a non-ionic non-fluorinated surfactant present in an amount ranging from about 0.1 to about 1.5 volume percent, and a cationic fluorinated alkyl quaternary ammonium iodide surfactant present in an amount ranging from about 0.005 to about 0.1 volume percent; and introducing a workpiece into said stable plating bath and initiating an electroless plating process to form a plated workpiece including a co-deposit of fluorinated carbon uniformly dispersed in a plated nickel matrix.
Claim 2
Dependent Claim
142 words
A process for co-deposition of fluorinated carbon with electroless nickel, comprising the steps of: preparing an electroless nickel plating solution; preparing a suspension of fluorinated carbon; mixing said solution and said suspension to form a stable plating bath including fluorinated carbon present in an amount ranging from about 5 to about 50 grams per liter, nickel present in an amount ranging from about 3.0 to about 9.0 grams per liter, a non-ionic non-fluorinated surfactant present in an amount ranging from about 0.1 to about 1.5 volume percent, and a cationic fluorinated alkyl quaternary ammonium iodide surfactant present in an amount ranging from about 0.005 to about 0.1 volume percent; and introducing a workpiece into said stable plating bath and initiating an electroless plating process to form a plated workpiece including a co-deposit of fluorinated carbon uniformly dispersed in a plated nickel matrix.
Claim 3
Dependent Claim
15 words
The process of claim 1 further including the step of heat treating said plated workpiece.
Claim 4
Dependent Claim
14 words
The process of claim 1 wherein said non-ionic surfactant is present in said suspension.
Claim 5
Dependent Claim
14 words
The process of claim 1 wherein said cationic surfactant is present in said suspension.
Claim 6
Dependent Claim
24 words
The process of claim 1 wherein said fluorinated carbon is present in an amount ranging from about 20 to about 25 grams per liter.
Claim 7
Dependent Claim
23 words
The process of claim 1 wherein said nickel is present in an amount ranging from about 5.0 to about 7.0 grams per liter.
Claim 8
Dependent Claim
19 words
The process of claim 1 wherein said non-ionic surfactant is present in an amount of about 1.0 volume percent.
Claim 9
Dependent Claim
29 words
The process of claim 1 wherein said cationic surfactant is a fluorinated alkyl quaternary ammonium iodide present in an amount ranging from about 0.01 to about 0.02 volume percent.
Claim 10
Dependent Claim
35 words
The process of claim 1 wherein said workpiece is formed of a material selected from a group consisting of steel, A-2 tool steel, nickel alloy, silver, aluminum, cast steel, brass, stainless steel, inconel, and copper.
Claim 11
Dependent Claim
25 words
The process of claim 1 wherein said plating process is carried out at a temperature of about 180°-185° F. and a pH of about 4.5-4.6.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |