Patent US3839166A successfully refreshed from Google Patents.
US3839166A
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Method for obtaining nickel deposits with satin finish
Assignee: Henkel AG and Co KGaA
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Filing: 1973-04-23
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Granted: 1974-10-01
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Expires: 1993-04-23
Abstract
Abstract Aqueous acid nickel electroplating baths containing a basic polishing agent and 5 to 100 mg/liter of a substituted or unsubstituted adduct of ethylene oxide and/or propylene oxide emulsified in the bath and operated at bath temperatures of 40* to 75* C to form satin-finish nickel deposits and to the improved method of forming nickel deposits having a satin finish and the product produced thereby.
Inventors
- 👤 G Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:32
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
50 words
IN A PROCESS OF FORMING DUCTILE, PORE-FERR NICKEL DEPOSITS BY PASSING AN ELECTRIC CURRENT AT A CURRENT DENSITY OF 0.5 TO 10 A/DM2 AT AN OPERATING TEMPERATURE OF 40*-75*C THROUGH AN ACID AQUEOUS ELECTROPLATING BATH CONTAINING A WATER-SOLUBLE NICKEL SALT, A PRIMARY POLISHING AGENT AND AN ADUCT HAVING THE FORMULA
Claim 2
Dependent Claim
50 words
IN A PROCESS OF FORMING DUCTILE, PORE-FERR NICKEL DEPOSITS BY PASSING AN ELECTRIC CURRENT AT A CURRENT DENSITY OF 0.5 TO 10 A/DM2 AT AN OPERATING TEMPERATURE OF 40*-75*C THROUGH AN ACID AQUEOUS ELECTROPLATING BATH CONTAINING A WATER-SOLUBLE NICKEL SALT, A PRIMARY POLISHING AGENT AND AN ADUCT HAVING THE FORMULA
Claim 3
Dependent Claim
54 words
The process of claim 1 wherein X is selected from the group consisting of oxygen and -NH and R1 and R4 are selected from the group consisting of hydrogen, acyl radical of an organic carboxylic acid of one to 18 carbon atoms and aliphatic, aromatic and aliphatic-aromatic hydrocarbons of one to 22 carbon atoms.
Claim 4
Dependent Claim
19 words
The process of claim 1 wherein the bath contains 10 to 50 mg per liter of the said adduct.
Claim 5
Dependent Claim
25 words
The process of claim 1 wherein a branched chain aklyl sulfate in a concentration of 0.5 to 1.0 gm/liter is present as a wetting agent.
Claim 6
Dependent Claim
20 words
The process of claim 1 wherein the bath also contains up to 2 gm per liter of a wetting agent.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |