US4465605A
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Borated polyhydroxyalkyl sulfides and lubricants containing same
Assignee: Mobil Oil AS
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Filing: 1982-10-18
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Granted: 1984-08-14
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Expires: 2002-10-18
Abstract
Abstract Lubricant and liquid fuel compositions contain a friction reducing or antioxidant additive. The additive is a borated trihydroxy hydrocarbyl sulfide.
Inventors
- 👤 Andrew G. Horodysky
- 👤 Joan M. Kaminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:21
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/301; C10L1/303; C10M; C10M139/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
82 words
A product made by reacting a sulfide of the formula (HO).sub.x RSR'(OH).sub.y wherein R and R' are C 1 to C 30 hydrocarbyl groups or mixtures thereof, the total of carbon atoms from R and R' being from 13 to 33, and either of x and y is 0 to 3, the sum thereof being at least 3, with at last an equimolar amount of a boron compound, the reaction being carried out at from about 75° C. to about 150° C.
Claim 2
Dependent Claim
82 words
A product made by reacting a sulfide of the formula (HO).sub.x RSR'(OH).sub.y wherein R and R' are C 1 to C 30 hydrocarbyl groups or mixtures thereof, the total of carbon atoms from R and R' being from 13 to 33, and either of x and y is 0 to 3, the sum thereof being at least 3, with at last an equimolar amount of a boron compound, the reaction being carried out at from about 75° C. to about 150° C.
Claim 3
Dependent Claim
39 words
The product of claim 1 wherein the boron compound is boric oxide or is of the formula: (RO).sub.a B(OH).sub.b wherein a is 1 to 3 and b is 0 to 2, the sum of a and b being 3.
Claim 4
Dependent Claim
13 words
The product of claim 1 wherein the sulfide is hydroxy pentadecyl-octadecyl sulfide-2,3-dihydroxy propane.
Claim 5
Dependent Claim
12 words
The product of claim 3 wherein the boron compound is boric acid.
Claim 6
Dependent Claim
13 words
The product of claim 1 wherein the sulfide is hydroxy tetradecyl sulfide-2,3-dihydroxy propane.
Claim 7
Dependent Claim
12 words
The product of claim 5 wherein the boron compound is boric acid.
Claim 8
Dependent Claim
111 words
A lubricant composition comprising a major amount of a lubricant selected from the group consisting of oils of lubricating viscosity and greases thereof and a friction reducing amount of a product made by reacting a sulfide of the formula (HO).sub.x RSR'(OH).sub.y wherein R and R' are C 1 to C 30 hydrocarbyl groups, or mixtures thereof, the total of carbon atoms from R and R' being from 13 to 33, and either of x and y is 0 to 3, the sum thereof being at least 3, with at least an equimolar amount of a boron compound, the reaction being carried out at from about 75° C. to about 150° C.
Claim 9
Dependent Claim
111 words
A lubricant composition comprising a major amount of a lubricant selected from the group consisting of oils of lubricating viscosity and greases thereof and a friction reducing amount of a product made by reacting a sulfide of the formula (HO).sub.x RSR'(OH).sub.y wherein R and R' are C 1 to C 30 hydrocarbyl groups, or mixtures thereof, the total of carbon atoms from R and R' being from 13 to 33, and either of x and y is 0 to 3, the sum thereof being at least 3, with at least an equimolar amount of a boron compound, the reaction being carried out at from about 75° C. to about 150° C.
Claim 10
Dependent Claim
39 words
The composition of claim 7 wherein the boron compound is boric oxide or is of the formula: (RO).sub.a B(OH).sub.b wherein a is 1 to 3 and b is 0 to 2, the sum of a and b being 3.
Claim 11
Dependent Claim
13 words
The composition of claim 7 wherein the sulfide is hydroxy pentadecyl-octadecyl sulfide-2,3-dihydroxy propane.
Claim 12
Dependent Claim
12 words
The composition of claim 9 wherein the boron compound is boric acid.
Claim 13
Dependent Claim
13 words
The composition of claim 7 wherein the sulfide is hydroxy tetradecyl sulfide-2,3-dihydroxy propane.
Claim 14
Dependent Claim
12 words
The composition of claim 11 wherein the boron compound is boric acid.
Claim 15
Dependent Claim
31 words
The composition of claim 7 wherein the lubricant is (1) a mineral oil, (2) a synthetic oil, (3) a mixture of these, or (4) a grease from (1), (2) or (3).
Claim 16
Dependent Claim
20 words
The composition of claims 7, 8, 9, 10, 11, 12 or 13 wherein the lubricant is a synthetic lubricating oil.
Claim 17
Dependent Claim
12 words
The composition of claim 7 wherein the lubricant is a mineral oil.
Claim 18
Dependent Claim
11 words
The composition of claim 7 wherein the lubricant is a grease.
Claim 19
Dependent Claim
16 words
The composition of claim 13 wherein the lubricant is a mixture of mineral and synthetic oils.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |