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US4532057A
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Lubricant composition comprising the reaction product of a vicinal diol and a dihydrocarbyl phosphite
Assignee: Mobil Oil AS
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Filing: 1983-08-31
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Granted: 1985-07-30
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Expires: 2003-08-31
Abstract
Abstract Lubricants and liquid fuel composition containing a hydrogen phosphite-vicinal diol reaction product provide additional protection to metal parts in contact by reducing the amount of friction.
Inventors
- 👤 Andrew G. Horodysky
- 👤 Phillip S. Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:00
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; C07F9/1411; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65742; C07F9/65746; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2641; C10M; C10M137/00; C10M137/02; C10M137/04; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
55 words
A product of reaction obtained by reacting a vicinal diol containing 10 to 30 carbon atoms with a dihydrocarbyl phosphite containing 1 to 6 carbon atoms, the reaction being carried out at from about 80° C. to about 225° C. using a mole ratio of diol to phosphite of from about 1:1 to about 3:1.
Claim 2
Dependent Claim
55 words
A product of reaction obtained by reacting a vicinal diol containing 10 to 30 carbon atoms with a dihydrocarbyl phosphite containing 1 to 6 carbon atoms, the reaction being carried out at from about 80° C. to about 225° C. using a mole ratio of diol to phosphite of from about 1:1 to about 3:1.
Claim 3
Dependent Claim
27 words
The product of claim 1 wherein the vicinal diol has the formula R.sup.1 (OH).sub.2 wherein R 1 is a hydrocarbyl group containing 10 to 30 carbon atoms.
Claim 4
Dependent Claim
25 words
The product of claim 2 wherein the diol is selected from the group consisting of 1,2-decanediol, 1,2-dodecanediol, 1,2-tetradecanediol, 1,2-pentadecanediol, 1,2-hexadecanediol, 1,2-hepteadecanediol, 1,2-octadecanediol and mixtures thereof.
Claim 5
Dependent Claim
16 words
The product of claim 3 wherein the diol is mixed 1,2-C 15 through C 18 alkanediols.
Claim 6
Dependent Claim
23 words
The product of claim 1 wherein the hydrocarbyl group is selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl and hexyl.
Claim 7
Dependent Claim
18 words
The product of claim 1 wherein the diol is 1,2-mixed pentadecanediol-octadecanediol and the phosphite is dimethyl hydrogeh phosphite.
Claim 8
Dependent Claim
17 words
The product of claim 1 wherein the diol is 1,2-dodecanediol and the phosphite is dimethyl hydrogen phosphite.
Claim 9
Dependent Claim
76 words
A lubricant composition comprising a major proportion of a lubricating oil or a grease therefrom and a friction reducing amount of a product of reaction obtained by reacting a vicinal diol containing 10 to 30 carbon atoms with a dihydrocarbyl phosphite containing 1 to 6 carbon atoms, the reaction being carried out at from about 80° C. to about 225° C. using a mole ratio of diol to phosphite of from about 1:1 to about 3:1.
Claim 10
Dependent Claim
76 words
A lubricant composition comprising a major proportion of a lubricating oil or a grease therefrom and a friction reducing amount of a product of reaction obtained by reacting a vicinal diol containing 10 to 30 carbon atoms with a dihydrocarbyl phosphite containing 1 to 6 carbon atoms, the reaction being carried out at from about 80° C. to about 225° C. using a mole ratio of diol to phosphite of from about 1:1 to about 3:1.
Claim 11
Dependent Claim
27 words
The composition of claim 8 wherein the vicinal diol has the formula R.sup.1 (OH).sub.2 wherein R 1 is a hydrocarbyl group containing 10 to 30 carbon atoms.
Claim 12
Dependent Claim
25 words
The composition of claim 9 wherein the diol is selected from the group consisting of 1,2-decanediol, 1,2-dodecanediol, 1,2-tetradecanediol, 1,2-pentadecanediol, 1,2-hexadecanediol, 1,2-hepteadecanediol, 1,2-octadecanediol and mixtures thereof.
Claim 13
Dependent Claim
16 words
The composition of claim 10 wherein the diol is mixed 1,2-C 15 through C 18 alkanediols.
Claim 14
Dependent Claim
22 words
The composition of 8 wherein the hydrocarbyl group is selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl and hexyl.
Claim 15
Dependent Claim
22 words
The composition of 8 wherein the hydrocarbyl group is selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl and hexyl.
Claim 16
Dependent Claim
18 words
The composition of claim 8 wherein the diol is 1,2-mixed pentadecanediol-octadecanediol and the phosphite is dimethyl hydrogen phosphite.
Claim 17
Dependent Claim
17 words
The composition of claim 8 wherein the diol is 1,2-dodecanediol and the phosphite is dimethyl hydrogen phosphite.
Claim 18
Dependent Claim
45 words
The composition of claim 8 wherein the lubricant is selected from the group consisting of (1) a mineral oil, (2) a synthetic oil or a mixture of synthetic oils, (3) a mixture of (1) and (2) and (4) a grease of (1), (2) or (3).
Claim 19
Dependent Claim
16 words
The composition of claim 15 wherein the lubricant is a mineral oil as defined in (1).
Claim 20
Dependent Claim
16 words
The composition of claim 15 wherein the lubricant is a synthetic oil as defined in (2).
Claim 21
Dependent Claim
18 words
The composition of claim 15 wherein the lubricant is a mixture of oils defined by (1) and (2).
Claim 22
Dependent Claim
17 words
The composition of claim 15 wherein the lubricant is a grease from any of (1) to (3).
Claim 23
Independent Claim
88 words
A method of reducing fuel consumption in an internal combustion engine which comprises (1) lubricating said engine with a composition comprising a major proportion of a lubricating oil and a fuel reducing amount of a product of reaction obtained by reacting a vicinal diol containing 10 to 30 carbon atoms with a dihydrocarbyl phosphite containing 1 to 6 carbon atoms the reaction being carried out at from about 80° C. to about 225° C. using a mole ratio of diol to phosphite of from 1:1 to about 3:1.
Claim 24
Independent Claim
88 words
A method of reducing fuel consumption in an internal combustion engine which comprises (1) lubricating said engine with a composition comprising a major proportion of a lubricating oil and a fuel reducing amount of a product of reaction obtained by reacting a vicinal diol containing 10 to 30 carbon atoms with a dihydrocarbyl phosphite containing 1 to 6 carbon atoms the reaction being carried out at from about 80° C. to about 225° C. using a mole ratio of diol to phosphite of from 1:1 to about 3:1.
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) | 1988-07-29 | 1989-01-28 | 1989-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-29 | 1993-01-28 | 1993-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-29 | 1997-01-28 | 1997-07-30 | $7700.00 | Window Closed / Lapsed |