Patent US3754942A successfully refreshed from Google Patents.
US3754942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust preventive coating composition
Assignee: Individual
•
Filing: 1972-06-15
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Granted: 1973-08-28
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Expires: 1992-06-15
Abstract
Abstract A protective coating for metals is provided which is both resistant to corrosion and flexible. The protective coating comprises, by weight, about 10-60 percent of a high melting point micro crystalline wax, 2.5-25% of a mixture of paraffinic and naphthenic oils, 0.01-15% of an alkali metal sulfonate, 16-50 percent of an asphaltite, 2-25% of a drying oil, 2-5 percent of a high molecular weight naphthenic acid having an average molecular weight in the range from about 290 to 420, and 3-60 percent of a solvent. Metallic particles, such as aluminum paste and coloring agents can also be employed.
Inventors
- 👤 E Moradian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
C; C09; C09D; C09D191/00; C09D191/06; C09D191/08; C09D5/00; C09D5/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31714
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
The coating composition of claim 1 wherein said alkali metal sulfonate is sodium sulfonate.
Claim 2
Dependent Claim
29 words
The composition of claim 1 wherein said micro crystalline wax has a melting point of about 150*-160*F, said alkali metal sulfonate is sodium sulfonate and said solvent is toluol.
Claim 3
Dependent Claim
18 words
The composition of claim 1 which includes sufficient coloring matter to impart a desired tint to the coating.
Claim 4
Dependent Claim
18 words
The composition of claim 3 which includes sufficient coloring matter to impart a desired tint to the coating.
Claim 5
Dependent Claim
183 words
A metallic surface having applied thereto a coating composition comprising about 10-60 weight percent micro crystalline wax having a melting point of at least about 150*F, 2.5-25 weight percent of a mixture of naphthenic and paraffinic oils, said mixture comprising about 5-95 weight percent of a paraffinic oil which has at least about 55 percent paraffinic carbon atoms, an API gravity at 60*F of about 28.5-31 and a pour point of 0*F and about 95-5 weight percent of a naphthenic oil having about 30-45 percent naphThenic carbon atoms, an API gravity at 60*F of about 24-28, a pour point of about -50*F and a molecular weight of about 200-300, 0.01-15 weight percent of an oil soluble alkali metal sulfonate having a molecular weight of about 400-550, 16-50 weight percent of unitaite, 2-25 weight percent of boiled linseed oil, 2-5 weight percent of a high molecular weight naphthenic acid having an average molecular weight in the range of from about 290 to 420 and about 3-60 weight percent of a solvent selected from the group consisting of mineral spirits, xylol, toluol and mixtures thereof.
Claim 6
Dependent Claim
32 words
A metallic surface, as claimed in claim 6, wherein said micro crystalline wax has a melting point of about 150*-160*F, said alkali metal sulfonate is sodium sulfonate and said solvent is toluol.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |