Patent US3878067A successfully refreshed from Google Patents.
US3878067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolyte and method for electrodepositing of bright nickel-iron alloy deposits
Assignee: Oxy Metal Finishing Corp
•
Filing: 1973-11-08
•
Granted: 1975-04-15
•
Expires: 1993-11-08
Abstract
Abstract An aqueous bath suitable for the electrodeposition of a bright iron nickel electrodeposit onto a substrate susceptible to corrosion comprising iron ions, nickel ions, a bath soluble complexing agent containing at least two complexing groups, said groups independently selected from the group consisting of carboxy and hydroxy, providing at least one group is a carboxy group; the bath having a pH from 2.5 to about 5.5 and containing a sulfide.
Inventors
- 👤 Robert Arnold Tremmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:31
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12; C25D3/14; C25D3/56; C25D3/562
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
145 words
AN AQUEOUS BATH SUITABLE FOR THE ELECTRODEPOSITION OF A BRIGHT ITON-NICKEL ELECTRODEPOSIT ONTO A SUBSTRATE SUSCEPTIBLE TO CORROSIION COMPRISING NOT LESS THAN ABOUT 10 GRAMS PER LITER NICKEL PLUS FERRIC AND FERROUS IONS, THE RATIO OF NICKEL IONS TO FERRIC AND FERROUS IONS BEING FROM ABOUT 5 TO ABOUT 50 TO 1, 0.5 TO 10 G/L OF A BATH SOLUBLE ORGANIC PRIMARY NICKEL BRIGHTENER OF THE FIRST CLASS CONTAINING A SULFO-OXYGEN GROUP, AN AMOUNT OF A BATH SOLUBLE COMPLEXING AGENT EFFECTIVE TO KEEP SUBSTANTIALLY ALL OF THE FERRIC AND FERROUS IONS IN SOLUTION AND CONTAINING AT LEAST TWO COMPLEXING GROUPS, SAID GROUPS BEING INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF CARBOXY AND HYDROXY, PROVIDED AT LEAST ONE GROUP IS A CARBOXY GROUP; THE BATH HAVING A PH FROM ABOUT 2.5 AND ABOUT 5.5 AND 0.5 TO 40 MG/L OF AN ORGANIC SULFIDE OF THE FORMULA:
Claim 2
Dependent Claim
145 words
AN AQUEOUS BATH SUITABLE FOR THE ELECTRODEPOSITION OF A BRIGHT ITON-NICKEL ELECTRODEPOSIT ONTO A SUBSTRATE SUSCEPTIBLE TO CORROSIION COMPRISING NOT LESS THAN ABOUT 10 GRAMS PER LITER NICKEL PLUS FERRIC AND FERROUS IONS, THE RATIO OF NICKEL IONS TO FERRIC AND FERROUS IONS BEING FROM ABOUT 5 TO ABOUT 50 TO 1, 0.5 TO 10 G/L OF A BATH SOLUBLE ORGANIC PRIMARY NICKEL BRIGHTENER OF THE FIRST CLASS CONTAINING A SULFO-OXYGEN GROUP, AN AMOUNT OF A BATH SOLUBLE COMPLEXING AGENT EFFECTIVE TO KEEP SUBSTANTIALLY ALL OF THE FERRIC AND FERROUS IONS IN SOLUTION AND CONTAINING AT LEAST TWO COMPLEXING GROUPS, SAID GROUPS BEING INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF CARBOXY AND HYDROXY, PROVIDED AT LEAST ONE GROUP IS A CARBOXY GROUP; THE BATH HAVING A PH FROM ABOUT 2.5 AND ABOUT 5.5 AND 0.5 TO 40 MG/L OF AN ORGANIC SULFIDE OF THE FORMULA:
Claim 3
Dependent Claim
22 words
The bath of claim 1, wherein the organic sulfide is selected from the group consisting of an amino thiazole of the structure:
Claim 4
Dependent Claim
32 words
The bath of claim 2 wherein the complexing agent is an aliphatic carboxylic acid having from 1 to 3 carboxyl groups, 2 to 8 carbon atoms, and 1 to 6 hydroxyl groups.
Claim 5
Dependent Claim
12 words
The bath of claim 2 wherein the complexing agent is citric acid.
Claim 6
Dependent Claim
12 words
The bath of claim 2 wherein the complexing agent is gluconic acid.
Claim 7
Dependent Claim
11 words
The bath of claim 2 wherein R5 and R6 are hydrogen.
Claim 8
Dependent Claim
12 words
The bath of claim 2 wherein R3 is lower alkyl sulfonic acid.
Claim 9
Dependent Claim
13 words
The bath of claim 2 wherein R3 is lower alkoxy aryl sulfonic acid.
Claim 10
Dependent Claim
12 words
The bath of claim 2 wherein R9 is lower alkyl sulfonic acid.
Claim 11
Dependent Claim
15 words
The bath of claim 2 wherein R9 is lower alkyl carboxy acid and salts thereof.
Claim 12
Dependent Claim
20 words
The bath of claim 2 whereIn the organic sulfide is 2-aminothiazole in a concentration of about 0.001 to 0.005 grams/liter.
Claim 13
Dependent Claim
21 words
The bath of claim 2 wherein the organic sulfide is isothiourea-s-propionic acid in a concentration of about 0.001 to 0.010 grams/liter.
Claim 14
Dependent Claim
15 words
The bath of claim 2 wherein the organic sulfide is a compound of the formula:
Claim 15
Dependent Claim
48 words
The bath of claim 1 wherein the ratio of nickel ions to iron ions in the bath ranges from about 5 to about 50 to 1; and the ratio of complexing agent to iron ion concentration ranges in the bath from about 3 to about 50 to 1.
Claim 16
Dependent Claim
70 words
The bath of claim 1 wherein the total iron ions are present in an amount ranging from about 5 to 40 g/l, calculated as FeSO4.7H2O; nickel sulfate present in an amount ranging from about 40 to 300 g/l, calculated as nickel sulfate.6H2O; nickel chloride hexahydrate present in an amount from about 80 to 250 g/l and the complexing agent is present in an amount from about 10 to 100 g/l.
Claim 17
Dependent Claim
13 words
The bath of claim 1 wherein the complexing agent contains an amino group.
Claim 18
Dependent Claim
11 words
The bath of claim 1 wherein the sulfo-oxygen brightener is saccharin.
Claim 19
Dependent Claim
22 words
The bath of claim 1 further comprising an acetylenic nickel brightener present in an amount ranging from about 10 to 500 mg/l.
Claim 20
Dependent Claim
25 words
The bath of claim 1 further comprising a quaternary nitrogen heterocyclic nickel brightener present in an amount ranging from about 1 to about 50 mg/l.
Claim 21
Dependent Claim
17 words
The bath of claim 1 wherein R1 is hydrogen and R2 is nitrogen of an organic radical.
Claim 22
Dependent Claim
38 words
A process for producing a bright iron nickel alloy electrodeposit comprising passing a current through the bath of claim 1 and electrodepositing an iron nickel alloy containing about from 5 to about 50% iron onto a cathodic surface.
Claim 23
Dependent Claim
22 words
A process of claim 21, wherein the organic sulfide is selected from the group consisting of an amino thiazole of the structure:
Claim 24
Dependent Claim
11 words
The process of claim 22 wherein R5 and R6 are hydrogen.
Claim 25
Dependent Claim
12 words
The process of claim 22 wherein R9 is lower alkyl sulfonic acid.
Claim 26
Dependent Claim
15 words
The process of claim 22 wherein R9 is lower alkyl carboxy acid and salts thereof.
Claim 27
Dependent Claim
48 words
The process of claim 21 wherein the ratio of nickel ions to iron ions in the bath ranges from about 5 to about 50 to 1; and the ratio of complexing agent to iron ion concentration ranges in the bath from about 3 to about 50 to 1.
Claim 28
Dependent Claim
70 words
The process of claim 21 wherein the total iron ions are present in an amount ranging from about 5 to 40 g/l, calculated as FeSO4.7H2O; nickel sulfate present in an amount ranging from about 40 to 300 g/l, calculated as nickel sulfate.6H2O; nickel chloride hexahydrate present in an amount from about 80 to 250 g/l and the complexing agent is present in an amount from about 10 to 100 g/l.
Claim 29
Dependent Claim
32 words
The process of claim 21 wherein the complexing agent is an aliphatic carboxylic acid having from 1 to 3 carboxyl groups, 2 to 8 carbon atoms, and 1 to 6 hydroxyl groups.
Claim 30
Dependent Claim
13 words
The process of claim 21 wherein the complexing agent contains an amino group.
Claim 31
Dependent Claim
12 words
The process of claim 21 wherein the complexing agent is citric acid.
Claim 32
Dependent Claim
12 words
The process of claim 21 wherein the complexing agent is gluconic acid.
Claim 33
Dependent Claim
11 words
The process of claim 21 wherein the sulfo-oxygen brightener is saccharin.
Claim 34
Dependent Claim
22 words
The process of claim 21 further comprising an acetylenic nickel brightener present in an amount ranging from about 10 to 500 mg/l.
Claim 35
Dependent Claim
25 words
The process of claim 21 further comprising a quaternary nitrogen heterocyclic nickel brightener present in an amount ranging from about 1 to about 50 mg/l.
Claim 36
Dependent Claim
17 words
The process of claim 21 wherein R1 is hydrogen and R2 is nitrogen of an organic radical.
Claim 37
Dependent Claim
12 words
The process of claim 21 wherein R3 is lower alkyl sulfonic acid.
Claim 38
Dependent Claim
13 words
The process of claim 22 wherein R3 is lower alkoxy aryl sulfonic acid.
Claim 39
Dependent Claim
21 words
The process of claim 21 wherein the organic sulfide is 2-aminothiazole in a concentration of about 0.001 to about 0.005 grams/liter.
Claim 40
Dependent Claim
22 words
The process of claim 21 wherein the organic sulfide is isothiourea-s-propionic acid in a concentration of about 0.001 to about 0.010 grams/liter.
Claim 41
Dependent Claim
15 words
The process of claim 21 wherein the organic sulfide is a compound of the formula:
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |