US4925581A
Expired / Lapsed
US
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Meadowfoam oil and meadowfoam oil derivatives as lubricant additives
Assignee: International Lubricants Inc
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Filing: 1988-07-19
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Granted: 1990-05-15
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Expires: 2008-07-19
Abstract
Abstract There is disclosed lubricant additives that comprise a combination of meadowfoam oil as a triglyceride or a wax ester, sulfurized triglyceride meadowfoam oil or sulfurized wax ester of meadowfoam oil, and phosphite adducts of triglyceride meadowfoam oil or wax ester of meadowfoam oil. There is also disclosed a process for sulfurizing triglyceride meadowfoam oil that is soluble in a lubricant base, such as mineral oil.
Inventors
- 👤 Frank L. Erickson
- 👤 Robert E. Anderson
- 👤 Phillip S. Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:00
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/02; C10M135/00; C10M135/02; C10M135/06; C10M163/00; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2004/80; C01P2006/00; C01P2006/90; C10M2205/00; C10M2205/14; C10M2205/18; C10M2207/00; C10M2207/40; C10M2207/404; C10M2219/00; C10M2219/02; C10M2219/024; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/06; C10M2223/061; C10M2223/065; C10M2227/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
174 words
A lubricating composition consisting essentially of a lubricant base and a lubricant additive wherein the lubricant additive comprises a mixture of at least two ingredients from different classes of ingredients selected from the group consisting of three classes of ingredients: wherein the first class of ingredients is selected from the group consisting of a triglyceride meadowfoam oil, a wax ester of meadowfoam oil, and a combination thereof; wherein the second class of ingredients is selected from the group consisting of a sulfurized meadowfoam oil wax ester, a sulfurized triglyceride meadowfoam oil comprising from about 25% to about 75% triglyceride meadowfoam oil and from about 25% to about 75% of a wax ester, wherein said wax ester is derived from a C 18-22 unsaturated acid and a C 18-22 unsaturated alcohol or said wax ester is jojoba oil, and a combination thereof; and wherein the third class of ingredients is selected from the group consisting of a phosphite adduct of triglyceride meadowfoam oil, a phosphite adduct of meadowfoam oil wax ester, and a combination thereof.
Claim 2
Dependent Claim
174 words
A lubricating composition consisting essentially of a lubricant base and a lubricant additive wherein the lubricant additive comprises a mixture of at least two ingredients from different classes of ingredients selected from the group consisting of three classes of ingredients: wherein the first class of ingredients is selected from the group consisting of a triglyceride meadowfoam oil, a wax ester of meadowfoam oil, and a combination thereof; wherein the second class of ingredients is selected from the group consisting of a sulfurized meadowfoam oil wax ester, a sulfurized triglyceride meadowfoam oil comprising from about 25% to about 75% triglyceride meadowfoam oil and from about 25% to about 75% of a wax ester, wherein said wax ester is derived from a C 18-22 unsaturated acid and a C 18-22 unsaturated alcohol or said wax ester is jojoba oil, and a combination thereof; and wherein the third class of ingredients is selected from the group consisting of a phosphite adduct of triglyceride meadowfoam oil, a phosphite adduct of meadowfoam oil wax ester, and a combination thereof.
Claim 3
Dependent Claim
21 words
The lubricating composition of claim 1 wherein the lubricating composition comprises from about 0.1% to about 25% of the lubricant additive.
Claim 4
Dependent Claim
58 words
The lubricating composition of claim 1 wherein the third class of ingredients is a mono-, di-, tri-, tetra-, penta- or hexa-adduct of the reaction product of ##STR9## and triglyceride meadowfoam oil, wherein R is selected from the group consisting of H, C 1-12 alkyl, C 1-12 aryl, C 1-12 alkaryl, C 1-12 aralkyl, and cyclo C 4-12 alkyl.
Claim 5
Dependent Claim
29 words
The lubricating composition of claim 3 wherein R is selected from the group consisting of C 4-8 alkyl, C 4-8 alkaryl, C 4-8 aralkyl, and cyclo C 4-8 alkyl.
Claim 6
Dependent Claim
10 words
The lubricating composition of claim 4 wherein R is n-butyl.
Claim 7
Dependent Claim
29 words
The lubricating composition of claim 1 wherein the phosphite adduct point of attachment to triglyceride meadowfoam oil and wax ester of meadowfoam oil is at a carbon-carbon double bond.
Claim 8
Dependent Claim
51 words
The lubricating composition of claim 1, comprising from about 0.1% to about 20% by weight of the triglyceride meadowfoam oil, from about 0.1% to about 10% by weight of the sulfurized triglyceride meadowfoam oil, and from about 0.1% to about 5% by weight of the phosphite adduct of triglyceride meadowfoam oil.
Claim 9
Dependent Claim
51 words
The lubricating composition of claim 1, comprising from about 0.1% to about 5% by weight of the triglyceride meadowfoam oil, from about 0.2% to about 10% by weight of the sulfurized triglyceride meadowfoam oil, and from about 0.1% to about 5% by weight of the phosphite adduct of triglyceride meadowfoam oil.
Claim 10
Dependent Claim
37 words
The lubricating composition of claim 1, comprising from about 0.1% to about 20% by weight of the triglyceride meadowfoam oil and from about 0.1% to about 5% by weight of the phosphite adduct of triglyceride meadowfoam oil.
Claim 11
Dependent Claim
160 words
A lubricant additive comprising a mixture of at least two ingredients from different classes of ingredients selected from the group consisting of three classes of ingredients: wherein the first class of ingredients is selected from the group consisting of a triglyceride meadowfoam oil, a wax ester of meadowfoam oil, and a combination thereof; wherein the second class of ingredients is selected from the group consisting of a sulfurized meadowfoam oil wax ester, a sulfurized triglyceride meadowfoam oil comprising from about 25% to about 75% triglyceride meadowfoam oil and from about 25% to about 75% of a wax ester, wherein said wax ester is derived from a C 18-22 unsaturated acid and a C 18-22 unsaturated alcohol or said wax ester is jojoba oil, and a combination thereof; and wherein the third class of ingredients is selected from the group consisting of a phosphite adduct of triglyceride meadowfoam oil, a phosphite adduct of meadowfoam oil wax ester, and a combination thereof.
Claim 12
Dependent Claim
160 words
A lubricant additive comprising a mixture of at least two ingredients from different classes of ingredients selected from the group consisting of three classes of ingredients: wherein the first class of ingredients is selected from the group consisting of a triglyceride meadowfoam oil, a wax ester of meadowfoam oil, and a combination thereof; wherein the second class of ingredients is selected from the group consisting of a sulfurized meadowfoam oil wax ester, a sulfurized triglyceride meadowfoam oil comprising from about 25% to about 75% triglyceride meadowfoam oil and from about 25% to about 75% of a wax ester, wherein said wax ester is derived from a C 18-22 unsaturated acid and a C 18-22 unsaturated alcohol or said wax ester is jojoba oil, and a combination thereof; and wherein the third class of ingredients is selected from the group consisting of a phosphite adduct of triglyceride meadowfoam oil, a phosphite adduct of meadowfoam oil wax ester, and a combination thereof.
Claim 13
Dependent Claim
58 words
The lubricant additive of claim 10 wherein the third class of ingredients is a mono-, di-, tri, tetra-, penta- or hexa-adduct of the reaction product of ##STR10## and triglyceride meadowfoam oil, wherein R is selected from the group consisting of H, C 1-12 alkyl, C 1-12 aryl, C 1-12 alkaryl, C 1-12 aralkyl, and cyclo C 4-12 alkyl.
Claim 14
Dependent Claim
29 words
The lubricant additive of claim 11 wherein R is selected from the group consisting of C 4-8 alkyl, C 4-8 alkaryl, C 4-8 aralkyl, and cyclo C 4-8 alkyl.
Claim 15
Dependent Claim
10 words
The lubricant additive of claim 12 wherein R is n-butyl.
Claim 16
Dependent Claim
29 words
The lubricant additive of claim 10 wherein the phosphite adduct point of attachment to triglyceride meadowfoam oil and wax ester of meadowfoam oil is at a carbon-carbon double bond.
Claim 17
Dependent Claim
223 words
A lubricant additive useful for an automobile engine oil, a precoat oil, a gear lubricant, a textile lubricant, an aviation oil, a grease, a hydraulic oil, a circulating oil, a diesel engine oil, an automatic transmission fluid, a way lubricant, a steam cylinder oil, a spindle oil, and a cutting fluid comprising a mixture of a lubricant base and a lubricant additive wherein the lubricant additive comprises a mixture of at least two ingredients from different classes of ingredients selected from the group consisting of three classes of ingredients: wherein the first class of ingredients is selected from the group consisting of a triglyceride meadowfoam oil, a wax ester of meadowfoam oil, and a combination thereof; wherein the second class of ingredients is selected from the group consisting of a sulfurized meadowfoam oil wax ester, a sulfurized triglyceride meadowfoam oil comprising from about 25% to about 75% triglyceride meadowfoam oil and from about 25% to about 75% of a wax ester, wherein said wax ester is derived from a C 18-22 unsaturated acid and a C 18-22 unsaturated alcohol or said wax ester is jojoba oil, and a combination thereof; and wherein the third class of ingredients is selected from the group consisting of a phosphite adduct of triglyceride meadowfoam oil, a phosphite adduct of meadowfoam oil wax ester, and a combination thereof.
Claim 18
Dependent Claim
223 words
A lubricant additive useful for an automobile engine oil, a precoat oil, a gear lubricant, a textile lubricant, an aviation oil, a grease, a hydraulic oil, a circulating oil, a diesel engine oil, an automatic transmission fluid, a way lubricant, a steam cylinder oil, a spindle oil, and a cutting fluid comprising a mixture of a lubricant base and a lubricant additive wherein the lubricant additive comprises a mixture of at least two ingredients from different classes of ingredients selected from the group consisting of three classes of ingredients: wherein the first class of ingredients is selected from the group consisting of a triglyceride meadowfoam oil, a wax ester of meadowfoam oil, and a combination thereof; wherein the second class of ingredients is selected from the group consisting of a sulfurized meadowfoam oil wax ester, a sulfurized triglyceride meadowfoam oil comprising from about 25% to about 75% triglyceride meadowfoam oil and from about 25% to about 75% of a wax ester, wherein said wax ester is derived from a C 18-22 unsaturated acid and a C 18-22 unsaturated alcohol or said wax ester is jojoba oil, and a combination thereof; and wherein the third class of ingredients is selected from the group consisting of a phosphite adduct of triglyceride meadowfoam oil, a phosphite adduct of meadowfoam oil wax ester, and a combination thereof.
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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) | 1993-05-14 | 1993-11-13 | 1994-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-14 | 1997-11-13 | 1998-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-14 | 2001-11-13 | 2002-05-15 | $7700.00 | Window Closed / Lapsed |