US4175047A
Expired / Lapsed
US
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Synthetic ester and hydrogenated olefin oligomer lubricant and method of reducing fuel consumption therewith
Assignee: Mobil Oil AS
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Filing: 1978-09-25
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Granted: 1979-11-20
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Expires: 1998-09-25
Abstract
Abstract Synthetic esters or mixtures thereof, containing a free hydroxyl group in the molecule, are useful as lubricants for internal combustion engines, preferably in combination with synthetic hydrocarbon fluids. The composition, when used to lubricate an internal combustion engine, reduces the fuel consumed by such engine.
Inventors
- 👤 John W. Schick
- 👤 Joan M. Kaminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:03
CPC Classifications
C; C10; C10M; C10M111/00; C10M111/04; C10M2205/00; C10M2205/02; C10M2205/028; C10M2207/00; C10M2207/28; C10M2207/287; C10M2207/289; C10N; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
62 words
An organic fluid composition comprising a lubricating oil having from about 20% by weight to about 40% by weight of a hydroxyl-containing synthetic ester oil, or mixtures thereof, and from about 60% by weight to about 80% by weight of a synthetic hydrocarbon lubricating oil consisting essentially of a hydrogenated oligomer of an alpha olefin having from 6 to 12 carbon atoms.
Claim 2
Dependent Claim
62 words
An organic fluid composition comprising a lubricating oil having from about 20% by weight to about 40% by weight of a hydroxyl-containing synthetic ester oil, or mixtures thereof, and from about 60% by weight to about 80% by weight of a synthetic hydrocarbon lubricating oil consisting essentially of a hydrogenated oligomer of an alpha olefin having from 6 to 12 carbon atoms.
Claim 3
Dependent Claim
41 words
The composition of claim 1 wherein the ester oil is made by reacting (1) a monocarboxylic acid, of the formula R--COOH wherein R is a C 5 -C 30 alkyl group, or mixtures of such acids with (2) a polyhydric alcohol.
Claim 4
Dependent Claim
51 words
The composition of claim 1 wherein the ester oil is made by reacting (1) a monocarboxylic acid of the formula (HO).sub.x R--COOH wherein R is an alkylene group containing from 5 to 30 carbon atoms and x is from 1 to 5 with (2) a polyhydric alcohol or a monohydric alcohol.
Claim 5
Dependent Claim
28 words
The composition of claim 2 wherein the lubricating oil is a mixture of 80% by weight of hydrogenated decene trimer and 20% by weight of said ester oil.
Claim 6
Dependent Claim
23 words
The composition of claim 2 wherein the polyhydric alcohol has from 2 to 30 carbon atoms and from 2 to 6 hydroxyl groups.
Claim 7
Dependent Claim
34 words
The composition of claim 3 wherein the polyhydric alcohol has from 2 to 30 carbon atoms and from 2 to 6 hydroxyl groups and the monohydric alcohol contains from 4 to 22 carbon atoms.
Claim 8
Dependent Claim
23 words
The composition of claim 2 wherein the ester oil is made by reacting 1 mole of pentaerythritol with 3 moles of oleic acid.
Claim 9
Dependent Claim
32 words
The composition of claim 2 wherein the ester oil is made by reacting 1 mole of pentaerythritol with a mixture of 0.5 mole of oleic acid and 2 moles of pelargonic acid.
Claim 10
Dependent Claim
23 words
The composition of claim 2 wherein the ester oil is made by reacting 1 mole of pentaerythritol with 2 moles of oleic acid.
Claim 11
Dependent Claim
32 words
The composition of claim 2 wherein the ester oil is made by reacting 1 mole of pentaerythritol with a mixture of 1.5 moles of oleic acid and 0.5 mole of pelargonic acid.
Claim 12
Dependent Claim
32 words
The composition of claim 2 wherein the ester oil is made by reacting 1 mole of pentaerythritol with a mixture of 1 mole of oleic acid and 1 mole of pelargonic acid.
Claim 13
Dependent Claim
32 words
The composition of claim 2 wherein the ester oil is made by reacting 1 mole of trimethylolpropane with a mixture of 1 mole of oleic acid and 1 mole of pelargonic acid.
Claim 14
Independent Claim
78 words
A method of decreasing fuel consumption in an internal combustion engine by lubricating said engine with an organic fluid composition comprising a lubricating oil having from about 20% by weight to about 40% by weight of a hydroxyl-containing synthetic ester oil, or mixtures thereof, and from about 60% by weight to about 80% by weight of a synthetic hydrocarbon lubricating oil consisting essentially of a hydrogenated oligomer of an alpha olefin having from 6 to 12 carbon atoms.
Claim 15
Independent Claim
78 words
A method of decreasing fuel consumption in an internal combustion engine by lubricating said engine with an organic fluid composition comprising a lubricating oil having from about 20% by weight to about 40% by weight of a hydroxyl-containing synthetic ester oil, or mixtures thereof, and from about 60% by weight to about 80% by weight of a synthetic hydrocarbon lubricating oil consisting essentially of a hydrogenated oligomer of an alpha olefin having from 6 to 12 carbon atoms.
Claim 16
Dependent Claim
42 words
The method of claim 13 wherein the ester oil used is made by reacting (1) a monocarboxylic acid, of the formula R--COOH wherein R is a C 5 -C 30 alkyl group, or mixtures of such acids with (2) a polyhydric alcohol.
Claim 17
Dependent Claim
52 words
The method of claim 13 wherein the ester oil used is made by reacting (1) a monocarboxylic acid of the formula (HO).sub.x R--COOH wherein R is an alkylene group containing from 5 to 30 carbon atoms and x is from 1 to 5 with (2) a polyhydric alcohol or a monohydric alcohol.
Claim 18
Dependent Claim
28 words
The method of claim 14 wherein the lubricating oil is a mixture of 80% by weight of hydrogenated decene trimer and 20% by weight of said ester oil.
Claim 19
Dependent Claim
23 words
The method of claim 14 wherein the polyhydric alcohol has from 2 to 30 carbon atoms and from 2 to 6 hydroxyl groups.
Claim 20
Dependent Claim
34 words
The method of claim 15 wherein the polyhydric alcohol has from 2 to 30 carbon atoms and from 2 to 6 hydroxyl groups and the monohydric alcohol contains from 4 to 22 carbon atoms.
Claim 21
Dependent Claim
24 words
The method of claim 14 wherein the ester oil used is made by reacting 1 mole of pentaerythritol with 3 moles of oleic acid.
Claim 22
Dependent Claim
33 words
The method of claim 14 wherein th ester oil used is made by reacting 1 mole of pentaerythritol with a mixture of 0.5 mole of oleic acid and 2 moles of pelargonic acid.
Claim 23
Dependent Claim
24 words
The method of claim 14 wherein the ester oil used is made by reacting 1 mole of pentaerythritol with 2 moles of oleic acid.
Claim 24
Dependent Claim
33 words
The method of claim 14 wherein the ester oil used is made by reacting 1 mole of pentaerythritol with a mixture of 1.5 moles of oleic acid and 0.5 mole of pelargonic acid.
Claim 25
Dependent Claim
33 words
The method of claim 14 wherein the ester oil used is made by reacting 1 mole of pentaerythritol with a mixture of 1 mole of oleic acid and 1 mole of pelargonic acid.
Claim 26
Dependent Claim
33 words
The method of claim 14 wherein the ester oil used is made by reacting 1 mole of trimethylolpropane with a mixture of 1 mole of oleic acid and 1 mole of pelargonic acid.
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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) | 1982-11-19 | 1983-05-21 | 1983-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-19 | 1987-05-21 | 1987-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-19 | 1991-05-21 | 1991-11-20 | $7700.00 | Window Closed / Lapsed |