US4360438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organomolybdenum based additives and lubricating compositions containing same
Assignee: Vanderbilt Chemicals LLC
•
Filing: 1980-06-06
•
Granted: 1982-11-23
•
Expires: 2000-06-06
Abstract
Abstract This invention relates to synergistic antiwear compositions comprising a sulfurized molybdenum dialkyldithiocarbamate and an organic sulfur compound selected from the group consisting of dithiocarbamate acid esters, sulfurized oils and polysulfurized olefins. Lubricating compositions containing the synergistic compositions possess good antiwear properties and improved extreme pressure and oxidation stability.
Inventors
- 👤 Eugene V. Rowan
- 👤 Homer H. Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:18
CPC Classifications
C; C07; C07F; C07F11/00; C07F11/005; C10; C10M; C10M135/00; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10N; C10N2010/00; C10N2010/12; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/135; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
89 words
A synergistic antiwear composition comprising: (1) an organomolybdenum compound of the formula: [R.sub.2 N--C(S)--S--].sub.2 Mo.sub.2 O.sub.m S.sub.n wherein R represents alkyl, m=2.35 to 3, n=1.65 to 1, m+n=4; and (2) an organic sulfur compound of the formula: ##STR2## wherein R 1 , R 2 and R 5 represent alkyl groups having 1 to 18 carbon atoms, R 3 represents H and --C(O)--O--R 5 , and R 4 represents H and methyl; and wherein the ratio of the molybdenum compound to the sulfur compound is about 1:4 to about 4:1.
Claim 2
Dependent Claim
89 words
A synergistic antiwear composition comprising: (1) an organomolybdenum compound of the formula: [R.sub.2 N--C(S)--S--].sub.2 Mo.sub.2 O.sub.m S.sub.n wherein R represents alkyl, m=2.35 to 3, n=1.65 to 1, m+n=4; and (2) an organic sulfur compound of the formula: ##STR2## wherein R 1 , R 2 and R 5 represent alkyl groups having 1 to 18 carbon atoms, R 3 represents H and --C(O)--O--R 5 , and R 4 represents H and methyl; and wherein the ratio of the molybdenum compound to the sulfur compound is about 1:4 to about 4:1.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 wherein the sulfur compound is 2-carbobutoxyethyl diethyldithiocarbamate.
Claim 4
Dependent Claim
20 words
A synergistic antiwear composition comprising sulfurized molybdenum ditridecyldithiocarbamate and 1,2-dicarbobutoxyethyl diethyldithiocarbamate in the ratio of about 1:4 to about 4:1.
Claim 5
Dependent Claim
20 words
A synergistic antiwear composition comprising sulfurized molybdenum ditridecyldithiocarbamate and 1,2-dicarbobutoxyethyl diethyldithiocarbamate in the ratio of about 1:4 to about 4:1.
Claim 6
Dependent Claim
12 words
A composition according to claim 2 wherein the ratio is about 1:1.
Claim 7
Dependent Claim
111 words
A lubricating composition containing a major amount of an oil of lubricating viscosity and a minor amount sufficient to improve lubricating properties thereof of a multifunctional composition comprising: (1) an organomolybdenum compound of the formula: [R.sub.2 N--C(S)--S].sub.2 Mo.sub.2 O.sub.m S.sub.n wherein R represents alkyl, m=2.35 to 3, n=1.65 to 1, m+n=4; and (2) an organic sulfur compound of the formula: ##STR3## wherein R 1 , R 2 and R 5 represent alkyl groups having 1 to 18 carbon atoms, R 3 represents H and --C(O)--O--R 5 , and R 4 represents H and methyl; and wherein the ratio of the molybdenum compound to the sulfur compound is about 1:4 about 4:1.
Claim 8
Dependent Claim
111 words
A lubricating composition containing a major amount of an oil of lubricating viscosity and a minor amount sufficient to improve lubricating properties thereof of a multifunctional composition comprising: (1) an organomolybdenum compound of the formula: [R.sub.2 N--C(S)--S].sub.2 Mo.sub.2 O.sub.m S.sub.n wherein R represents alkyl, m=2.35 to 3, n=1.65 to 1, m+n=4; and (2) an organic sulfur compound of the formula: ##STR3## wherein R 1 , R 2 and R 5 represent alkyl groups having 1 to 18 carbon atoms, R 3 represents H and --C(O)--O--R 5 , and R 4 represents H and methyl; and wherein the ratio of the molybdenum compound to the sulfur compound is about 1:4 about 4:1.
Claim 9
Dependent Claim
24 words
A lubricating composition according to claim 5 wherein the multifunctional composition is added in the amount of about 0.1 to 10.0 percent by weight.
Claim 10
Dependent Claim
14 words
A lubricating composition according to claim 5 wherein the sulfur compound is 2-carbobutoxyethyl diethyldithiocarbamate.
Claim 11
Dependent Claim
12 words
A lubricating composition according to claim 5 which further contains a thickener.
Claim 12
Dependent Claim
37 words
A lubricating composition containing an oil of lubricating viscosity and about 0.1 to 10.0 percent by weight of a multifunctional composition comprising sulfurized molybdenum ditridecyldithiocarbamate and 1,2-dicarbobutoxyethyl diethyldithiocarbamate in the ratio of about 1:4 to about 4:1.
Claim 13
Dependent Claim
37 words
A lubricating composition containing an oil of lubricating viscosity and about 0.1 to 10.0 percent by weight of a multifunctional composition comprising sulfurized molybdenum ditridecyldithiocarbamate and 1,2-dicarbobutoxyethyl diethyldithiocarbamate in the ratio of about 1:4 to about 4:1.
Claim 14
Dependent Claim
12 words
A composition according to claim 9 wherein the ratio is about 1:1.
References Cited (Backward Citations)
US2179066A
Cited
US2786866A
Cited
US3356702A
Cited
US3509051A
Cited
US3471404A
Cited
GB1369163A
Cited
US3890363A
Cited
US4098705A
Cited
US4178258A
Cited
US4204969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |