US3914162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and process for the electrodeposition of metals
Assignee: Monsanto Co
•
Filing: 1973-06-25
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Granted: 1975-10-21
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Expires: 1993-06-25
Abstract
Abstract An electrically conductive medium for the electrodeposition of metals comprises an aqueous solution of (a) a metal ion, (b) a carboxy alkylene amino di(methylene phosphonic acid) and optionally, (c) 1-hydroxy alkylidene-1,1-diphosphonic acid.
Inventors
- 👤 Xavier Kowalski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:39
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
38 words
A PROCESS FOR THE ELETRODEPOSITION OF DIVALENT AND POLYVALENT METAL IONS WHICH COMPRISES THE STEPS OF ELEDTROLYZING AN AQUEOUS SOLUTION COMPRISING A. A DIVALENT OR POLYVALENT METAL ION, B. A CARBOXY AMINO PHOSPHONIC ACID COMPOUND OF THE STRUCTURE
Claim 2
Dependent Claim
38 words
A PROCESS FOR THE ELETRODEPOSITION OF DIVALENT AND POLYVALENT METAL IONS WHICH COMPRISES THE STEPS OF ELEDTROLYZING AN AQUEOUS SOLUTION COMPRISING A. A DIVALENT OR POLYVALENT METAL ION, B. A CARBOXY AMINO PHOSPHONIC ACID COMPOUND OF THE STRUCTURE
Claim 3
Dependent Claim
8 words
A process of claim 1, wherein (b) is
Claim 4
Dependent Claim
9 words
A process of claim 1 wherein R is -CH3.
Claim 5
Dependent Claim
22 words
A process of claim 3 wherein said metal ion (a) is copper and the pH of said aqueous solution is about 8.0.
Claim 6
Dependent Claim
28 words
A process of claim 1, wherein said metal ion (a) is selected from the group consisting of copper, iron, nickel, zinc, and cadmium, brass, silver, chromium and gold.
Claim 7
Dependent Claim
26 words
An electroplating bath composition comprising an aqueous solution of a. a divalent or polyvalent metal ion, b. a carboxy amino phosphonic acid compound of the structure
Claim 8
Dependent Claim
26 words
An electroplating bath composition comprising an aqueous solution of a. a divalent or polyvalent metal ion, b. a carboxy amino phosphonic acid compound of the structure
Claim 9
Dependent Claim
8 words
A composition of claim 1 wherein (b) is
Claim 10
Dependent Claim
9 words
A composition of claim 7 wherein R is CH3.
Claim 11
Dependent Claim
12 words
A composition of claim 8 wherein said metal ion (a) is copper.
Claim 12
Dependent Claim
28 words
A composition of claim 6 wherein said metal ion (a) is selected from the group consisting of copper, iron, nickel, zinc, and cadmium, brass, silver, chromium and gold.
References Cited (Backward Citations)
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US3293176A
Cited
US3475293A
Cited
US3394172A
Cited
US3617343A
Cited
US3706635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |