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US4264461A
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Stabilization of hydrocracked oils with aliphatic amine components
Assignee: Atlantic Richfield Co
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Filing: 1979-09-26
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Granted: 1981-04-28
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Expires: 1999-09-26
Abstract
Abstract Hydrocracked lubricating oils are effectively stabilized against deterioration caused by light by the inclusion of at least one of certain substantially aliphatic amine components. Such substantially aliphatic amine components provide outstanding inhibition relative to aromatic amine components.
Inventors
- 👤 Tai S. Chao
- 👤 Aubrey C. Smith, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:40
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/24; C10M2215/26
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
165 words
A composition of matter comprising a major amount by weight of a hydrocracked lubricating oil and a minor amount by weight of at least one added aliphatic amine component having a structure ##STR3## wherein R, R 1 ,R 3 and R 4 are each independently selected from the group consisting of H and substantially aliphatic monovalent hydrocarbonaceous radicals containing about 2 to about 24 carbon atoms, provided that at least one of R, R 1 ,R 3 and R 4 is a substantially aliphatic monovalent hydrocarbonaceous radical; x and y are integers independently selected from integers in the range of 0 to about 10, provided that at least one of x and y equals at least one; and R 2 is a substantially aliphatic divalent hydrocarbonaceous radical containing about 1 to about 10 carbon atoms, said amine component being present in an amount effective to reduce the susceptibility of sunlight decoloration of said hydrocracked oil and said composition being free of added aromatic amine component.
Claim 2
Dependent Claim
165 words
A composition of matter comprising a major amount by weight of a hydrocracked lubricating oil and a minor amount by weight of at least one added aliphatic amine component having a structure ##STR3## wherein R, R 1 ,R 3 and R 4 are each independently selected from the group consisting of H and substantially aliphatic monovalent hydrocarbonaceous radicals containing about 2 to about 24 carbon atoms, provided that at least one of R, R 1 ,R 3 and R 4 is a substantially aliphatic monovalent hydrocarbonaceous radical; x and y are integers independently selected from integers in the range of 0 to about 10, provided that at least one of x and y equals at least one; and R 2 is a substantially aliphatic divalent hydrocarbonaceous radical containing about 1 to about 10 carbon atoms, said amine component being present in an amount effective to reduce the susceptibility of sunlight decoloration of said hydrocracked oil and said composition being free of added aromatic amine component.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein said hydrocracked lubricating oil comprises at least about 70% by weight of said composition.
Claim 4
Dependent Claim
13 words
The composition of claim 2 wherein x equals one and y equals zero.
Claim 5
Dependent Claim
21 words
The composition of claim 2 wherein said added amine component comprises about 0.01% to about 2.0% by weight of said composition.
Claim 6
Dependent Claim
21 words
The composition of claim 2 wherein said added amine component comprises about 0.03% to about 0.5% by weight of said composition.
Claim 7
Dependent Claim
21 words
The composition of claim 3 wherein said added amine component comprises about 0.03% to about 0.5% by weight of said composition.
Claim 8
Dependent Claim
21 words
The composition of claim 3 wherein said added amine component comprises about 0.3% to about 0.5% by weight of said composition.
Claim 9
Independent Claim
140 words
A method of inhibiting a hydrocracked lubricating oil free of added aromatic amine component from decoloration caused by sunlight comprising combining with said oil an inhibiting amount of at least one aliphatic amine component having a structure: ##STR4## wherein R, R 1 ,R 3 and R 4 are each independently selected from the group consisting of H and substantially aliphatic monovalent hydrocarbonaceous radicals containing about 2 to about 24 carbon atoms, provided that at least one of R, R 1 ,R 3 and R 4 is a substantially aliphatic monovalent hydrocarbonaceous radical; x and y are integers independently selected from integers in the range of 0 to about 10, provided that at least one of x and y equals at least one; and R 2 is a substantially aliphatic divalent hydrocarbonaceous radical containing about 1 to about 10 carbon atoms.
Claim 10
Independent Claim
140 words
A method of inhibiting a hydrocracked lubricating oil free of added aromatic amine component from decoloration caused by sunlight comprising combining with said oil an inhibiting amount of at least one aliphatic amine component having a structure: ##STR4## wherein R, R 1 ,R 3 and R 4 are each independently selected from the group consisting of H and substantially aliphatic monovalent hydrocarbonaceous radicals containing about 2 to about 24 carbon atoms, provided that at least one of R, R 1 ,R 3 and R 4 is a substantially aliphatic monovalent hydrocarbonaceous radical; x and y are integers independently selected from integers in the range of 0 to about 10, provided that at least one of x and y equals at least one; and R 2 is a substantially aliphatic divalent hydrocarbonaceous radical containing about 1 to about 10 carbon atoms.
Claim 11
Dependent Claim
13 words
The method of claim 8 wherein x equals one and y equals zero.
Claim 12
Dependent Claim
30 words
The method of claim 8 wherein said amine is present in an amount equal to about 0.01% to about 2.0% by weight of the total hydrocracked lubricating oil-amine component combination.
Claim 13
Dependent Claim
30 words
The method of claim 8 wherein said amine is present in an amount equal to about 0.03% to about 0.5% by weight of the total hydrocracked lubricating oil-amine component combination.
Claim 14
Dependent Claim
30 words
The method of claim 9 wherein said amine is present in an amount equal to about 0.01% to about 2.0% by weight of the total hydrocracked lubricating oil-amine component combination.
Claim 15
Dependent Claim
30 words
The method of claim 9 wherein said amine is present in an amount equal to about 0.03% to about 0.5% by weight of the total hydrocracked lubricating oil-amine component combination.
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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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |