US4308154A
Expired / Lapsed
US
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Mixed metal salts and lubricants and functional fluids containing them
Assignee: Lubrizol Corp
•
Filing: 1980-11-07
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Granted: 1981-12-29
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Expires: 2000-11-07
Abstract
Abstract Mixed metal salts (especially zinc salts) of dialkylphosphorodithioic acids and carboxylic acids, the ratio of equivalents of the dialkylphosphorodithioic to the carboxylic acid being between about 0.5:1 and about 4.5:1, are useful in lubricants and functional fluids (such as hydraulic fluids) as antioxidants and extreme pressure agents having improved thermal stability.
Inventors
- 👤 Donald L. Clason
- 👤 Calvin W. Schroeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:12
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07C; C07C53/00; C07C53/126; C07C53/128; C07F9/06; C07F9/16; C07F9/165; C10; C10M; C10M1/00; C10M1/08; C10M141/00; C10M141/10; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2205/028; C10M2207/00; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/124; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/24; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/109; C10M2209/11; C10M2209/111; C10M2211/00; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/086; C10M2219/087; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/065; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/042; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/06; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/135; C10N2040/20; C10N2040/25; C10N2040/251; C10N2040/252; C10N2040/253; C10N2040/255; C10N2040/26; C10N2040/28; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
109 words
A mixed metal salt of (A) at least one acid of the formula ##STR2## wherein each of R 1 and R 2 is a hydrocarbon-based radical, and (B) at least one carboxylic acid having the formula R 3 COOH which contains from about 5 to about 20 carbon atoms and wherein R 3 is an aliphatic or alicyclic hydrocarbonbased radical; the ratio of equivalents of A to B being between 2.5:1 and about 4.5:1; up to about 2 equivalents of metal being present per equivalent of acid; and the metal being at least one of Group I metals, Group II metals, aluminum, tin, cobalt, lead, molybdenum, manganese and nickel.
Claim 2
Dependent Claim
109 words
A mixed metal salt of (A) at least one acid of the formula ##STR2## wherein each of R 1 and R 2 is a hydrocarbon-based radical, and (B) at least one carboxylic acid having the formula R 3 COOH which contains from about 5 to about 20 carbon atoms and wherein R 3 is an aliphatic or alicyclic hydrocarbonbased radical; the ratio of equivalents of A to B being between 2.5:1 and about 4.5:1; up to about 2 equivalents of metal being present per equivalent of acid; and the metal being at least one of Group I metals, Group II metals, aluminum, tin, cobalt, lead, molybdenum, manganese and nickel.
Claim 3
Dependent Claim
28 words
A mixed salt according to claim 1 wherein each of R 1 and R 2 is an alkyl raidcal containing from about 3 to about 50 carbon atoms.
Claim 4
Dependent Claim
20 words
A mixed salt according to claim 2 wherein each of R 1 and R 2 is a branched alkyl radical.
Claim 5
Dependent Claim
15 words
A mixed salt according to claim 1 wherein R 3 is a saturated aliphatic radical.
Claim 6
Dependent Claim
15 words
A mixed salt according to claim 4 wherein R 3 is a branched alkyl radical.
Claim 7
Dependent Claim
26 words
A mixed salt according to claim 1, 3, 4, 8 or 5 wherein the ratio of equivalents of A to B is between 2.5:1 and 4.25:1.
Claim 8
Dependent Claim
14 words
A mixed salt according to claim 1 wherein R 3 is an olefinic radical.
Claim 9
Dependent Claim
13 words
A mixed salt according to claim 7 wherein component B is oleic acid.
Claim 10
Dependent Claim
21 words
A mixed salt according to claim 1, 2, 3, 4, 5, 6, 10, 7 or 8 wherein the metal is zinc.
Claim 11
Dependent Claim
26 words
A mixed salt according to claim 6 wherein each of R 1 and R 2 is the 2-ethylhexyl radical and R 3 is the 3-heptyl radical.
Claim 12
Dependent Claim
37 words
An additive concentrate comprising a substantially inert, normally liquid organic diluent and from about 20% to about 90% by weight of a mixed salt according to claim 1, 2, 3, 4, 5, 6, 10, 7 or 8.
Claim 13
Dependent Claim
28 words
An additive concentrate comprising a substantially inert, normally liquid organic diluent and from about 20% to about 90% by weight of a mixed salt according to claim 9.
Claim 14
Dependent Claim
38 words
A lubricant or functional fluid comprising a major amount of a lubricating oil and about 0.25% to about 10% by weight of a mixed salt according to claim 1, 2, 3, 4, 5, 6, 10, 7 or 8.
Claim 15
Dependent Claim
29 words
A lubricant or functional fluid comprising a major amount of a lubricating oil and about 0.25% to about 10% by weight of a mixed salt according to claim 9.
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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) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |