US4148940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for depositing films containing cobalt oxide
Assignee: PPG Industries Inc
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Filing: 1978-03-20
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Granted: 1979-04-10
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Expires: 1998-03-20
Abstract
Abstract Improved methods are disclosed for depositing metal oxide films from coating compositions containing dehydrated cobaltous acetylacetonate.
Inventors
- 👤 J. Shannon Breininger
- 👤 Charles B. Greenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:10
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/245; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/217; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112; C03C2218/15; C03C2218/152
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
47 words
In a method for depositing metal oxide coatings which comprise cobalt oxide by thermal decomposition of a coating composition comprising an organometallic coating reactant and an organic solvent, the improvement which comprises: a. dehydrating cobaltous acetylacetonate; and b. dissolving the dehydrated cobaltous acetylacetonate in said organic solvent.
Claim 2
Dependent Claim
47 words
In a method for depositing metal oxide coatings which comprise cobalt oxide by thermal decomposition of a coating composition comprising an organometallic coating reactant and an organic solvent, the improvement which comprises: a. dehydrating cobaltous acetylacetonate; and b. dissolving the dehydrated cobaltous acetylacetonate in said organic solvent.
Claim 3
Dependent Claim
51 words
The improved method according to claim 1, wherein the organometallic coating composition is prepared by: (a) dehydrating the cobaltous acetylacetonate; and (b) mixing the dehydrated cobaltous acetylacetonate with an acetylacetonate of a metal selected from the group consisting of iron, cobalt, chromium, copper, nickel, tin, titanium, zirconium, vanadium, and mixtures thereof.
Claim 4
Dependent Claim
40 words
The improved method according to claim 2, wherein the dehydration of cobaltous acetylacetonate is accomplished by heating the coating reactant in vacuo for at least about 10 hours at a temperature of at least about 140° F. (about 60° C.).
Claim 5
Dependent Claim
38 words
The improved method according to claim 2, wherein the coating composition is dissolved in an organic solvent and is applied by spraying onto a hot glass substrate whereupon the coating reactants pyrolyze to form a metal oxide film.
Claim 6
Dependent Claim
27 words
The improved method according to claim 4 wherein the organic solvent is selected from the group consisting of aliphatic halocarbons, olefinic halocarbons, halogenated hydrocarbons and mixtures thereof.
Claim 7
Dependent Claim
41 words
In a method for preparing an organometallic coating composition for the deposition of coatings comprising cobalt oxide, the improvement which comprises: (a) dehydrating cobaltous acetylacetonate; and (b) incorporating dehydrated cobaltous acetylacetonate into the coating composition which further comprises an organic solvent.
Claim 8
Dependent Claim
41 words
In a method for preparing an organometallic coating composition for the deposition of coatings comprising cobalt oxide, the improvement which comprises: (a) dehydrating cobaltous acetylacetonate; and (b) incorporating dehydrated cobaltous acetylacetonate into the coating composition which further comprises an organic solvent.
Claim 9
Dependent Claim
36 words
The improved method according to claim 6, wherein the coating composition further comprises an acetylacetonate of a metal selected from the group consisting of iron, chromium, copper, cobalt, nickel, tin, titanium, zirconium, vanadium and mixtures thereof.
Claim 10
Dependent Claim
31 words
The improved method according to claim 7, wherein the coating composition further comprises an organic solvent selected from the group consisting of aliphatic hoalocarbons, olefinic halocarbons, halogenated hydrocarbons and mixtures thereof.
Claim 11
Dependent Claim
50 words
A composition for the deposition of coatings comprising cobalt oxide by thermal decomposition of an organometallic coating composition which comprises an organic solvent, dehydrated cobaltous acetylacetonate and an acetylacetonate of a metal selected from the group consisting of iron, cobalt, chromium, copper, nickel, tin, titanium, zirconium, vanadium, and mixtures thereof.
Claim 12
Dependent Claim
50 words
A composition for the deposition of coatings comprising cobalt oxide by thermal decomposition of an organometallic coating composition which comprises an organic solvent, dehydrated cobaltous acetylacetonate and an acetylacetonate of a metal selected from the group consisting of iron, cobalt, chromium, copper, nickel, tin, titanium, zirconium, vanadium, and mixtures thereof.
Claim 13
Dependent Claim
25 words
The composition of claim 9 wherein the organic solvent is selected from the group consisting of aliphatic halocarbons, olefinic halocarbons, halogenated hydrocarbons and mixtures thereof.
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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) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |