Patent US3622367A successfully refreshed from Google Patents.
US3622367A
Expired / Lapsed
US
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Contact deposition of platinum and other metals
Assignee: Mobil Oil AS
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Filing: 1970-03-24
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Granted: 1971-11-23
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Expires: 1990-03-24
Abstract
Abstract A method is provided for the deposition of a metal on a substrate. The substrate has active surfaces and deposition is effected by mixing the substrate with a solution containing an alcohol and a metal pi-complex having at least one ligand in the form of an organic group containing at least one carbon-to-carbon multiple bond. The metal pi-complex decomposes on the active surfaces, thereby depositing the elemental metal on the active surfaces.
Inventors
- 👤 Werner O Haag
- 👤 Darrell Duayne Whitehurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:32
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/42; C23C18/02; C23C18/08; C23C18/1601; C23C18/1633; C23C18/1635; C23C18/1637; C23C18/1644; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2053; C23C18/2066; C23C18/44
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
36 words
The method of claim 1 wherein said solution contains pi-complexes of more than one metal whereby said metals of said pi-complexes are deposited in the form of a mixture on said active surfaces of said substrate.
Claim 2
Dependent Claim
13 words
The method of claim 1 wherein the substrate is a nonconductor of electricity.
Claim 3
Dependent Claim
35 words
The method of claim 1 wherein the substrate comprises particles too small to attach electrodes. 5 The method of claim 1 wherein the complex has at least one other ligand different from said organic group.
Claim 4
Dependent Claim
42 words
The method of claim 5 wherein said other ligand is selected from halogen, carbonyl, alkyl, acyl, acyloxy, amine, ammonia, phosphine, cyanide, isocyanide, nitrosyl, alkyl sulfide, aryl sulfide, hydrogen sulfide, thionitrosyl, hydroxy, thiocarbonyl, water, hydride, aryloxy, aroyl, aroyloxy, hydrogen sulfite, thiocyanate, and alkoxy.
Claim 5
Dependent Claim
39 words
The method of claim 6 wherein the number of said one ligand varies from 1 to 8, the number of said other ligand varies from 7 to 0, and the sum of the two varies from 2 to 8.
Claim 6
Dependent Claim
39 words
The method of claim 7 wherein the number of said one ligand varies from 1 to 2, the number of said other ligand varies from 2 to 6, and the sum of the two varies from 2 to 8.
Claim 7
Dependent Claim
16 words
The method of claim 5 wherein said one ligand is derived from an open chain monoolefin.
Claim 8
Dependent Claim
16 words
The method of claim 5 wherein said one ligand is derived from an open chain diolefin.
Claim 9
Dependent Claim
16 words
The method of claim 5 wherein said one ligand is derived from an open chain oligo-olefin.
Claim 10
Dependent Claim
15 words
The method of claim 5 wherein said one ligand is derived from a cyclic diolefin.
Claim 11
Dependent Claim
15 words
The method of claim 5 wherein said one ligand is derived from a cyclic oligo-olefin.
Claim 12
Dependent Claim
14 words
The method of claim 5 wherein said one ligand is derived from an acetylene.
Claim 13
Dependent Claim
15 words
The method of claim 1 wherein said solution comprises said complex dissolved in said alcohol.
Claim 14
Dependent Claim
12 words
The method of claim 1 wherein said substrate is a particulate material.
Claim 15
Dependent Claim
15 words
The method of claim 16 wherein said substrate comprises particles in the colloid size range.
Claim 16
Dependent Claim
15 words
The method of claim 16 wherein the substrate is a crystalline aluminosilicate zeolitic molecular sieve.
Claim 17
Dependent Claim
12 words
The method of claim 16 wherein the substrate is a metal oxide.
Claim 18
Dependent Claim
13 words
The method of claim 16 wherein the substrate is an ion exchange resin.
Claim 19
Dependent Claim
25 words
The method of claim 1 wherein the substrate comprises material with active and nonactive surfaces and wherein metal is selectively deposited on the active surfaces.
Claim 20
Dependent Claim
12 words
The method of claim 1 wherein the deposition is carried out continuously.
Claim 21
Dependent Claim
24 words
The process of claim 1 wherein said contacting is carried out at a temperature between room temperature and the refluxing temperature of said solution.
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |