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US4758362A
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Carbamate additives for low phosphorus or phosphorus free lubricating compositions
Assignee: Lubrizol Corp
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Filing: 1986-03-18
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Granted: 1988-07-19
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Expires: 2006-03-18
Abstract
Abstract A phosphorus free or a low phosphorus containing lubricant composition is provided by formulating the composition with an additive of the formula ##STR1## wherein R 1 and R 2 are independently alkyl of 1 to about 7 carbons, aryl, aralkyl or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; X is O or S; a is 1 or 2; R 3 and R 4 are independently H, alkyl or aryl; and Z is ##STR2## wherein R 5 is hydrogen, alkyl, or aralkyl, and ##STR3## wherein Y is H, OH, R 6 where R 6 is alkyl, aryl or aralkyl, OR 6 , OR 7 --OH, where R 7 is alkylene of 1 to about 7 carbon atoms, and NR 8 R 9 where R 8 and R 9 are independently hydrogen, alkyl, cycloaliphatic, heteroalicyclic or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; with the proviso that when a is 1, Y is not OR 6 . These additives impart improved extreme pressure and anti-wear properties to lubricant compositions.
Inventors
- 👤 Betsy J. Butke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:45
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/12; C10M135/14; C10M135/18; C10M2205/00; C10M2205/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/04; C10M2221/043; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
237 words
A low-phosphorus containing or phosphorus-free lubricating composition comprising a major amount of an oil of lubricating viscosity and a minor amount of an additive derived from reactants comprising: (A) CS 2 , COS or a source material therefor; (B) an amine of the formula: R'R"NH, wherein R' and R" are the same or different and are alkyl groups of 1 to about 7 carbon atoms, aryl or aralkyl, or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen, and (C) a reactant of the formula: (CR.sub.10 R.sub.11 (CR').sub.x (R'.sub.3).sub.b)Z (II) wherein R 10 and R 11 are independently H, alkyl, aryl, Cl or Br; R' is H, alkyl, aryl or aralkyl; x is 0 or 1, b is 0 or 1 where x+b is 1; R' 3 is H, alkyl or aryl, chloro or bromo and Z is CN, ##STR9## wherein R 5 is H, alkyl or aralkyl, and wherein Y is H, OH, R 6 or OR 6 where R 6 is alkyl, aryl or aralkyl, OR 7 --OH where R 7 is alkylene of 1 to about 7 carbon atoms and NR 8 R 9 where R 8 and R 9 are independently H, alkyl, cycloaliphatic, heteroalicyclic or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; with the proviso that when x is O, Y is not OR 6 .
Claim 2
Dependent Claim
237 words
A low-phosphorus containing or phosphorus-free lubricating composition comprising a major amount of an oil of lubricating viscosity and a minor amount of an additive derived from reactants comprising: (A) CS 2 , COS or a source material therefor; (B) an amine of the formula: R'R"NH, wherein R' and R" are the same or different and are alkyl groups of 1 to about 7 carbon atoms, aryl or aralkyl, or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen, and (C) a reactant of the formula: (CR.sub.10 R.sub.11 (CR').sub.x (R'.sub.3).sub.b)Z (II) wherein R 10 and R 11 are independently H, alkyl, aryl, Cl or Br; R' is H, alkyl, aryl or aralkyl; x is 0 or 1, b is 0 or 1 where x+b is 1; R' 3 is H, alkyl or aryl, chloro or bromo and Z is CN, ##STR9## wherein R 5 is H, alkyl or aralkyl, and wherein Y is H, OH, R 6 or OR 6 where R 6 is alkyl, aryl or aralkyl, OR 7 --OH where R 7 is alkylene of 1 to about 7 carbon atoms and NR 8 R 9 where R 8 and R 9 are independently H, alkyl, cycloaliphatic, heteroalicyclic or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; with the proviso that when x is O, Y is not OR 6 .
Claim 3
Dependent Claim
249 words
An additive for preparing a low-phosphorus containing or phosphorus-free lubricating oil, grease or automatic transmissions fluid derived from reactants comprising a major amount of an oil of lubricating viscosity and a minor amount of an additive derived from reactants comprising: (A) CS 2 , COS or a source material therefor; (B) an amine of the formula: R'R"NH, wherein R' and R" are the same or different and are alkyl groups of 1 to about 7 carbon atoms, aryl or aralkyl, or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen, and (C) a reactant of the formula: (CR.sub.10 R.sub.11 (CR').sub.x (R'.sub.3).sub.b)Z (II) wherein R 10 and R 11 are independently H, alkyl, aryl, Cl or Br; R' is H, alkyl, aryl or aralkyl; x is 0 or 1, b is 0 or 1 where x+b is 1; R' 3 is H, alkyl or aryl, chloro or bromo and Z is CN, ##STR10## wherein R 5 is H, alkyl or aralkyl, and wherein Y is H, OH, R 6 or OR 6 where R 6 is alkyl, aryl or aralkyl, OR 7 --OH where R 7 is alkylene of 1 to about 7 carbon atoms and NR 8 R 9 where R 8 and R 9 are independently H, alkyl, cycloaliphatic, heteroalicyclic or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; with the proviso that when x is O, Y is not OR 6 .
Claim 4
Dependent Claim
249 words
An additive for preparing a low-phosphorus containing or phosphorus-free lubricating oil, grease or automatic transmissions fluid derived from reactants comprising a major amount of an oil of lubricating viscosity and a minor amount of an additive derived from reactants comprising: (A) CS 2 , COS or a source material therefor; (B) an amine of the formula: R'R"NH, wherein R' and R" are the same or different and are alkyl groups of 1 to about 7 carbon atoms, aryl or aralkyl, or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen, and (C) a reactant of the formula: (CR.sub.10 R.sub.11 (CR').sub.x (R'.sub.3).sub.b)Z (II) wherein R 10 and R 11 are independently H, alkyl, aryl, Cl or Br; R' is H, alkyl, aryl or aralkyl; x is 0 or 1, b is 0 or 1 where x+b is 1; R' 3 is H, alkyl or aryl, chloro or bromo and Z is CN, ##STR10## wherein R 5 is H, alkyl or aralkyl, and wherein Y is H, OH, R 6 or OR 6 where R 6 is alkyl, aryl or aralkyl, OR 7 --OH where R 7 is alkylene of 1 to about 7 carbon atoms and NR 8 R 9 where R 8 and R 9 are independently H, alkyl, cycloaliphatic, heteroalicyclic or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; with the proviso that when x is O, Y is not OR 6 .
Claim 5
Dependent Claim
9 words
A grease composition comprising the additive of claim 2.
Claim 6
Dependent Claim
10 words
An automatic transmission fluid comprising the additive of claim 2.
Claim 7
Dependent Claim
9 words
A hydraulic fluid comprising the additive of claim 2.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-07-19 | 1992-01-18 | 1992-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-19 | 1996-01-18 | 1996-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-19 | 2000-01-18 | 2000-07-19 | $7700.00 | Window Closed / Lapsed |