US4098705A
Expired / Lapsed
US
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Sulfur containing molybdenum dihydrocarbyldithiocarbamate compound
Assignee: Adeka Corp
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Filing: 1976-07-29
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Granted: 1978-07-04
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Expires: 1996-07-29
Abstract
Abstract A compound having the following general formula (I); <IMAGE> (I) wherein R1 and R2 stand for a hydrocarbyl group having from 1 to 24 carbon atoms, x is a number of 0.5 - 2.3, useful as an additive for lubricants.
Inventors
- 👤 Toshio Sakurai
- 👤 Akio Nishihara
- 👤 Takuro Handa
- 👤 Hidekatsu Katoh
- 👤 Yoshiro Tomoda
- 👤 Kazumi Aoki
- 👤 Makoto Yoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:56
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/18; C07; C07F; C07F11/00; C07F11/005; C10M115/00; C10M2201/00; C10M2201/10; C10M2201/102; C10M2201/103; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/109; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/12; C10N2040/00; C10N2040/02; C10N2040/135; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
54 words
A composition having the formula: ##STR6## wherein R 1 and R 2 , which are the same or different, are selected from the group consisting of hydrocarbyl having from one to 24 carbon atoms and hydroxy-substituted hydrocarbyl having from one to 24 carbon atoms, and x is a number of from 0.75 to 2.1.
Claim 2
Dependent Claim
54 words
A composition having the formula: ##STR6## wherein R 1 and R 2 , which are the same or different, are selected from the group consisting of hydrocarbyl having from one to 24 carbon atoms and hydroxy-substituted hydrocarbyl having from one to 24 carbon atoms, and x is a number of from 0.75 to 2.1.
Claim 3
Dependent Claim
52 words
A composition having the formula ##STR7## wherein R 1 and R 2 , which are the same or different, are selected from the group consisting of alkyl having 2 to 18 carbon atoms, cyclohexyl, 2-methylcyclohexyl, benzyl, 4-methylbenzyl, 3-methoxybenzyl, 3,4-dimethoxybenzyl, 4-ethoxyphenyl and hydroxyethyl, and x is a number of from 0.75 to 2.1.
Claim 4
Dependent Claim
52 words
A composition having the formula ##STR7## wherein R 1 and R 2 , which are the same or different, are selected from the group consisting of alkyl having 2 to 18 carbon atoms, cyclohexyl, 2-methylcyclohexyl, benzyl, 4-methylbenzyl, 3-methoxybenzyl, 3,4-dimethoxybenzyl, 4-ethoxyphenyl and hydroxyethyl, and x is a number of from 0.75 to 2.1.
Claim 5
Dependent Claim
17 words
A composition as claimed in claim 2, in which R 1 and R 2 both are n-butyl.
Claim 6
Independent Claim
199 words
A method for preparing a composition having the formula ##STR8## wherein R 1 and R 2 , which are the same or different, are selected from the group consisting of hydrocarbyl having from one to 24 carbon atoms and hydroxy-substituted hydrocarbyl having from one to 24 carbon atoms, and x is a number of from 0.75 to 2.1, which comprises adding (a) carbon disulfide and (b) a secondary amine having the formula R .sbsb.2 R .spsb.1 >NH, wherein R 1 and R 2 have the same meaning as set forth above, to (c) a reaction mixture consisting essentially of water, a molybdenum compound selected from the group consisting of molybdenum trioxide, alkaline metal molybdates, ammonium molybdate and mixtures thereof, and a sulfide compound selected from the group consisting of alkaline metal hydrogensulfides, ammonium hydrogensulfide, alkaline metal sulfides, ammonium sulfide and mixtures thereof, wherein the molar ratio of said molybdenum compound/sulfide compound is from 1/0.05 to 1/4, said reaction mixture having a pH of 0.5 to 10, reacting the mixture of (a), (b) and (c) at a temperature of higher than 80° C. to form a composition of the first mentioned formula and recovering said composition from the reaction mixture.
Claim 7
Independent Claim
199 words
A method for preparing a composition having the formula ##STR8## wherein R 1 and R 2 , which are the same or different, are selected from the group consisting of hydrocarbyl having from one to 24 carbon atoms and hydroxy-substituted hydrocarbyl having from one to 24 carbon atoms, and x is a number of from 0.75 to 2.1, which comprises adding (a) carbon disulfide and (b) a secondary amine having the formula R .sbsb.2 R .spsb.1 >NH, wherein R 1 and R 2 have the same meaning as set forth above, to (c) a reaction mixture consisting essentially of water, a molybdenum compound selected from the group consisting of molybdenum trioxide, alkaline metal molybdates, ammonium molybdate and mixtures thereof, and a sulfide compound selected from the group consisting of alkaline metal hydrogensulfides, ammonium hydrogensulfide, alkaline metal sulfides, ammonium sulfide and mixtures thereof, wherein the molar ratio of said molybdenum compound/sulfide compound is from 1/0.05 to 1/4, said reaction mixture having a pH of 0.5 to 10, reacting the mixture of (a), (b) and (c) at a temperature of higher than 80° C. to form a composition of the first mentioned formula and recovering said composition from the reaction mixture.
Claim 8
Dependent Claim
51 words
A method according to claim 4 in which the reaction mixture (c) of water, said molybdenum compound and said sulfide compound is maintained at from 10° to 60° C., for from 30 to 60 minutes, prior to adding (a) and (b) thereto, to react said molybdenum compound with said sulfide compound.
Claim 9
Dependent Claim
39 words
A method according to claim 5 in which said alkaline metal molybdate is sodium molybdate or potassium molybdate, said alkaline metal hydrogensulfide is sodium hydrogensulfide or potassium hydrogensulfide and said alkaline metal sulfide is sodium sulfide or potassium sulfide.
Claim 10
Dependent Claim
25 words
A method according to claim 5 in which the molybdenum compound is obtained by reaction between molybdenum trioxide and an aqueous alkaline metal hydroxide solution.
Claim 11
Dependent Claim
25 words
A method according to claim 5 in which the sulfide compound is obtained by reaction between hydrogen sulfide and an aqueous alkaline metal hydroxide solution.
Claim 12
Dependent Claim
21 words
A method according to claim 5 in which the molar ratio of said molybdenum compound/sulfide compound is from 1/0.08 to 1/3.8.
Claim 13
Dependent Claim
17 words
A method according to claim 9 in which the pH of (c) is from 1 to 8.
Claim 14
Dependent Claim
17 words
A method according to claim 9 in which the pH of (c) is from 1.2 to 7.5.
Claim 15
Dependent Claim
22 words
A method according to claim 10 in which the molar ratio of molybdenum compound:secondary amine:carbon disulfide is 1:1 to 2:1 to 2.
Claim 16
Dependent Claim
22 words
A method according to claim 10 in which the molar ratio of molybdenum compound:secondary amine:carbon disulfide is 1:1 to 1.4:1 to 1.4.
Claim 17
Dependent Claim
27 words
A method according to claim 12 in which the reaction temperature is from 80° to 105° C. and the reaction time is from 2 to 10 hours.
Claim 18
Dependent Claim
27 words
A method according to claim 12 in which the reaction temperature is from 90° to 100° C. and the reaction time is from 2 to 10 hours.
Claim 19
Dependent Claim
27 words
A lubricating composition containing from 0.05 to 30 percent by weight of a composition as claimed in claim 1 and the balance is a conventional lubricant material.
Claim 20
Dependent Claim
27 words
A lubricating composition containing from 0.2 to 10 percent by weight of a composition as claimed in claim 1 and the balance is a conventional lubricant material.
References Cited (Backward Citations)
US3509051A
Cited
US3419589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |