US3897349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-rust additive composition
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1974-05-29
•
Granted: 1975-07-29
•
Expires: 1994-05-29
Abstract
Abstract Anti-rust additive composition: A. ALKANOLAMINE SALT OF FATTY ACID B. ALKANOLAMINE SALT OF AROMATIC ACID C. FREE ALKANOLAMINE D. SODIUM ALKYLBENZENE SULFONATE E. MINERAL OIL BASE
Inventors
- 👤 Pierre Dominique Marin
- 👤 Robert Tirtiaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:00
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/20; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2219/00; C10M2219/04; C10M2219/042; C10M2219/044; C10N; C10N2010/00; C10N2010/02; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
115 words
AN ANTI-ADDITIVE COMPOSITION COMPRISING: A. AT LEAST ONE SALT OF AT LEAST ONE ALIPHATIC CARBOXYLIC ACID HAVING 6 TO 20 CARBON ATOMS PER MOLECULE AND AT LEAST ONE ALKANOLAMINE, B. AT LEAST ONE SALT OF AT LEAST ONE AROMATIC CARBOXYLIC ACID HAVING UP TO 20 CARBON ATOMS PER MOLECULE AND AT LEAST ONE ALKANOLAMINE THE WEIGHT RATIO CALCULATED AS FREE ACID OF AROMATIC ACID ALIPHATIC ACID BEING 0.1: 1 TO 10 :1 AND C. AT LEAST ONE ALKANOLAMINE IN THE FREE STATE SO THAT IN TOTAL THERE ARE 1.5 TO 3.0 EQUIVALENTS OF ALKANOLAMINE PRESENT PER EQUIVALENT OF ACID, THE ALKANOLAMINES BEING COMPOUNDS CONTAINING UP TO 20 CARBON ATOMS PER MOLECULE AND HAVING THE FORMULA
Claim 2
Dependent Claim
115 words
AN ANTI-ADDITIVE COMPOSITION COMPRISING: A. AT LEAST ONE SALT OF AT LEAST ONE ALIPHATIC CARBOXYLIC ACID HAVING 6 TO 20 CARBON ATOMS PER MOLECULE AND AT LEAST ONE ALKANOLAMINE, B. AT LEAST ONE SALT OF AT LEAST ONE AROMATIC CARBOXYLIC ACID HAVING UP TO 20 CARBON ATOMS PER MOLECULE AND AT LEAST ONE ALKANOLAMINE THE WEIGHT RATIO CALCULATED AS FREE ACID OF AROMATIC ACID ALIPHATIC ACID BEING 0.1: 1 TO 10 :1 AND C. AT LEAST ONE ALKANOLAMINE IN THE FREE STATE SO THAT IN TOTAL THERE ARE 1.5 TO 3.0 EQUIVALENTS OF ALKANOLAMINE PRESENT PER EQUIVALENT OF ACID, THE ALKANOLAMINES BEING COMPOUNDS CONTAINING UP TO 20 CARBON ATOMS PER MOLECULE AND HAVING THE FORMULA
Claim 3
Dependent Claim
20 words
A composition as claimed in claim 1, wherein there are 2.0 to 3.0 equivalents of alkanolamine per equivalent of acid.
Claim 4
Dependent Claim
20 words
A composition as claimed in claim 1, wherein the free alkanolamine and alkanolamine present in the salts are the same.
Claim 5
Dependent Claim
23 words
A composition as claimed in claim 1, wherein the aliphatic acid is selected from those having 10 to 18 carbon atoms per molecule.
Claim 6
Dependent Claim
20 words
A composition as claimed in claim 4, wherein the acid is selected from lauric, palmitic, oleic and tall oil acids.
Claim 7
Dependent Claim
17 words
A composition as claimed in claim 1, wherein the aromatic acid is benzoic acid or p-aminobenzoic acid.
Claim 8
Dependent Claim
26 words
A composition as claimed in claim 1, wherein the alkanolamine is selected from monoethanolamine, isopropanolamine, N-dimethylethanolamine, N-diethylethanolamine, N-dimethyl isopropanolamine, N-diethylisopropanolamine, diisopropanolamine, triisopropanolamine, diethanolamine, N-methyldiethanolamine and N-ethyldiethanolamine.
Claim 9
Dependent Claim
25 words
A composition as claimed in claim 7, wherein the alkanolamines consist of a mixture of at least two alkanolamines selected from ethanolamine, diethanolamine and triethanolamine.
Claim 10
Dependent Claim
25 words
A composition as claimed in claim 7, wherein the alkanolamines consist of a mixture of at least two alkanolamines selected from isopropanolamine, diisopropanolamine and triisopropanolamine.
Claim 11
Dependent Claim
60 words
A composition as claimed in claim 1, obtained by neutralising at a temperature below 130*C 1 part by weight of one or more said carboxylic aliphatic acids and 0.1 to 10 parts by weight of one or more said aromatic carboxylic acids, with from 1.5 to 3.0 equivalents in total of the alkanolamine per equivalent in total of the acids.
Claim 12
Dependent Claim
70 words
AN EMULSIFIABLE COMPOSITION COMPRISING A COMPOSITION AS CLAIMED IN CLAIM 1 FURTHER CONTAINING A SODIUM ALKYLBENZENE SULPHONATE EMULSIFYING AGENT. 12, THE COMPOSITION OF CLAIM 11 FURTHER CONTAINING A MINERAL OIL BASE HAVING A VISCOSITY OF 10 TO 200 CST AT 50*C AND WHEREIN THE AMOUNT OF THE EMULSIFIER IS FROM 10 TO 30 WEIGHT PERCENT AND THE AMOUNT OF THE ANTI-RUST ADDITIVE COMPOSITION IS FROM 1 TO 5 WEIGHT PERCENT.
References Cited (Backward Citations)
US2563588A
Cited
US2512949A
Cited
US2668146A
Cited
US2695272A
Cited
US2832742A
Cited
US2941944A
Cited
US3769214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |