US4336285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method to synthesize and produce thin films by spray pyrolysis
Assignee: Radiation Monitoring Devices Inc
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Filing: 1981-02-03
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Granted: 1982-06-22
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Expires: 2001-02-03
Abstract
Abstract Forming a film by spraying onto a heated substrate an atomized solution containing the appropriate salt of a constituent element of the film and a highly soluble (i.e., greater than 1 M) organic acid in sufficient amount to reduce the oxidation state of at least one solute element of the spray solution after contacting the heated substrate.
Inventors
- 👤 Michael R. Squillante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:44
CPC Classifications
H; H10; H10F; H10F71/00; H10F71/127; H10F71/1272; C; C03; C03C; C03C17/00; C03C17/22; C23; C23C; C23C18/00; C23C18/02; C23C18/12; C23C18/1204; C23C18/125; C23C18/1258; C23C18/16; C23C18/1601; C23C18/1633; C23C18/1646; C23C18/165; C23C18/1651; C23C18/1655; C23C18/1675; C23C18/1678; C23C18/31; H10F10/00; H10F10/10; H10F10/16; H10F10/162; H10F10/169; H10F71/125; H10F71/1253; H10F71/128; C03C2217/00; C03C2217/20; C03C2217/28; C03C2217/283; C03C2217/287; C03C2217/288; C03C2217/289; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112; C23C18/48; C23C18/50; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/543; Y02E10/544
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
In the process of making a thin film comprising preparing a solution with solute elements including a salt of a first constituent element of said film and spraying said solution onto a heated substrate to form a film on said substrate, the solute and solvent elements not constituting said film forming volatile reaction products after contacting said heated substrate, said solution also including an agent in sufficient amount to change the oxidation state of at least one said solute element after contacting said heated substrate, the improvement wherein said agent is an organic acid with a solubility greater than 1 M in the solvent.
Claim 2
Dependent Claim
104 words
In the process of making a thin film comprising preparing a solution with solute elements including a salt of a first constituent element of said film and spraying said solution onto a heated substrate to form a film on said substrate, the solute and solvent elements not constituting said film forming volatile reaction products after contacting said heated substrate, said solution also including an agent in sufficient amount to change the oxidation state of at least one said solute element after contacting said heated substrate, the improvement wherein said agent is an organic acid with a solubility greater than 1 M in the solvent.
Claim 3
Dependent Claim
12 words
The process of claim 1 wherein said organic acid is formic acid.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein said organic acid is acetic acid.
References Cited (Backward Citations)
US3148084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |