US4162223A
Expired / Lapsed
US
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Residue of hydrogenation product of branched aliphatic dinitriles as lubricant additive
Assignee: Phillips Petroleum Co
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Filing: 1978-03-21
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Granted: 1979-07-24
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Expires: 1998-03-21
Abstract
Abstract The heavy reaction product obtained upon separation, as by distillation, of light reaction products of branched aliphatic dinitriles is useful as rust inhibitor in lubricating oils and greases.
Inventors
- 👤 James T. Gragson
- 👤 Ralph P. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:45
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/05; C10M2201/06; C10M2201/062; C10M2201/065; C10M2201/066; C10M2201/10; C10M2201/102; C10M2201/103; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/20; C10M2215/202; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2040/00; C10N2040/02; C10N2040/08
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
36 words
A lubricating composition containing a heavy reaction product obtained from the hydrogenation of branched aliphatic dinitriles containing from 7 to 30 carbon atoms per molecule said product essentially containing a mixture of aliphatic diamines and polyamines.
Claim 2
Dependent Claim
36 words
A lubricating composition containing a heavy reaction product obtained from the hydrogenation of branched aliphatic dinitriles containing from 7 to 30 carbon atoms per molecule said product essentially containing a mixture of aliphatic diamines and polyamines.
Claim 3
Dependent Claim
17 words
A composition according to claim 1 wherein the dinitriles contain 9 to 12 carbon atoms per molecule.
Claim 4
Dependent Claim
34 words
A composition according to claim 1 wherein there is in the composition a lubricating oil and at least one of said heavy reaction product and a reaction product of it with a fatty acid.
Claim 5
Dependent Claim
20 words
A composition according to claim 1 wherein there is in the composition a lubricating grease and said heavy reaction product.
Claim 6
Dependent Claim
43 words
A composition according to claim 1 wherein said heavy reaction product is recovered as a residue in the separation of light reaction products, essentially consisting of saturated aliphatic diamines, from the hydrogenation of branched aliphatic dinitriles in the presence of a hydrogenation catalyst.
Claim 7
Dependent Claim
43 words
A composition according to claim 2 wherein said heavy reaction product is recovered as a residue in the separation of light reaction products, essentially consisting of saturated aliphatic diamines, from the hydrogenation of branched aliphatic dinitriles in the presence of a hydrogenation catalyst.
Claim 8
Dependent Claim
43 words
A composition according to claim 3 wherein said heavy reaction product is recovered as a residue in the separation of light reaction products, essentially consisting of saturated aliphatic diamines, from the hydrogenation of branched aliphatic dinitriles in the presence of a hydrogenation catalyst.
Claim 9
Dependent Claim
43 words
A composition according to claim 4 wherein said heavy reaction product is recovered as a residue in the separation of light reaction products, essentially consisting of saturated aliphatic diamines, from the hydrogenation of branched aliphatic dinitriles in the presence of a hydrogenation catalyst.
Claim 10
Dependent Claim
52 words
A composition according to claim 1 wherein said heavy reaction product is a mixture containing polyamines corresponding to the formula H--NH--R'-- n NH 2 wherein the R's are independently selected from branched alkylene radicals of 7 to 30 carbon atoms and where n has a value of from 2 to about 6.
Claim 11
Dependent Claim
52 words
A composition according to claim 2 wherein said heavy reaction product is a mixture containing polyamines corresponding to the formula H--NH--R'-- n NH 2 wherein the R's are independently selected from branched alkylene radicals of 7 to 30 carbon atoms and where n has a value of from 2 to about 6.
Claim 12
Dependent Claim
52 words
A composition according to claim 3 wherein said heavy reaction product is a mixture containing polyamines corresponding to the formula H--NH--R'-- n NH 2 wherein the R's are independently selected from branched alkylene radicals of 7 to 30 carbon atoms and where n has a value of from 2 to about 6.
Claim 13
Dependent Claim
52 words
A composition according to claim 4 wherein said heavy reaction product is a mixture containing polyamines corresponding to the formula H--NH--R'-- n NH 2 wherein the R's are independently selected from branched alkylene radicals of 7 to 30 carbon atoms and where n has a value of from 2 to about 6.
Claim 14
Dependent Claim
34 words
A composition according to claim 6 wherein there is in the composition a lubricating oil containing at least one of a detergent of the nature of a calcium petroleum sulfonate and an oxidation inhibitor.
Claim 15
Dependent Claim
34 words
A composition according to claim 7 wherein there is in the composition a lubricating oil containing at least one of a detergent of the nature of a calcium petroleum sulfonate and an oxidation inhibitor.
Claim 16
Dependent Claim
34 words
A composition according to claim 9 wherein there is in the composition a lubricating oil containing at least one of a detergent of the nature of a calcium petroleum sulfonate and an oxidation inhibitor.
Claim 17
Dependent Claim
34 words
A composition according to claim 10 wherein there is in the composition a lubricating oil containing at least one of a detergent of the nature of a calcium petroleum sulfonate and an oxidation inhibitor.
Claim 18
Dependent Claim
34 words
A composition according to claim 11 wherein there is in the composition a lubricating oil containing at least one of a detergent of the nature of a calcium petroleum sulfonate and an oxidation inhibitor.
References Cited (Backward Citations)
US2862883A
Cited
US3114702A
Cited
US3200106A
Cited
US3259578A
Cited
US3844958A
Cited
US3697426A
Cited
US3720615A
Cited
US3898056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-23 | 1983-01-22 | 1983-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-23 | 1987-01-22 | 1987-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-23 | 1991-01-22 | 1991-07-24 | $7700.00 | Window Closed / Lapsed |