US4970010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vegetable oil derivatives as lubricant additives
Assignee: International Lubricants Inc
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Filing: 1988-12-09
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Granted: 1990-11-13
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Expires: 2008-12-09
Abstract
Abstract There is disclosed lubricant additives that comprise combination of vegetable oil as a triglyceride or a wax ester, sulfurized triglyceride vegetable oil or sulfurized wax ester of vegetable oil, and phosphite adducts of triglyceride vegetable oil, wax ester of vegetable oil or jojoba oil. There is also disclosed a process for sulfurizing triglyceride vegetable 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
2026-11-01 22:09
CPC Classifications
C; C10; C10M; C10M159/00; C10M135/00; C10M135/02; C10M135/06; C10M137/00; C10M137/12; C10M159/02; C10M159/12; 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: 10
Claim 1
Independent Claim
87 words
A lubricant additive comprising a mixed sulfurized triglyceride vegetable oil wherein from about 25% to about 75% by weight triglyceride vegetable oil is mixed with from about 75% to about 25% by weight of an unsaturated wax ester and sulfurized, wherein the unsaturated wax ester has at least two double bonds and from about 30 to about 60 carbon atoms straight chain length and wherein the wax ester is derived from an unsaturated fatty acid and an unsaturated fatty alcohol, or the wax ester is jojoba oil.
Claim 2
Dependent Claim
87 words
A lubricant additive comprising a mixed sulfurized triglyceride vegetable oil wherein from about 25% to about 75% by weight triglyceride vegetable oil is mixed with from about 75% to about 25% by weight of an unsaturated wax ester and sulfurized, wherein the unsaturated wax ester has at least two double bonds and from about 30 to about 60 carbon atoms straight chain length and wherein the wax ester is derived from an unsaturated fatty acid and an unsaturated fatty alcohol, or the wax ester is jojoba oil.
Claim 3
Dependent Claim
17 words
The lubricant additive of claim 1 wherein the wax ester is a wax ester of meadowfoam oil.
Claim 4
Dependent Claim
13 words
The lubricant additive of claim 1 wherein the wax ester is jojoba oil.
Claim 5
Dependent Claim
57 words
A lubricant additive comprising the sulfurized product of from about 25% to about 75% by weight triglyceride vegetable oil and from about 25% to about 75% by weight 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.
Claim 6
Dependent Claim
57 words
A lubricant additive comprising the sulfurized product of from about 25% to about 75% by weight triglyceride vegetable oil and from about 25% to about 75% by weight 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.
Claim 7
Dependent Claim
16 words
The lubricant additive of claim 4 wherein the wax ester is a meadowfoam oil wax ester.
Claim 8
Dependent Claim
25 words
The lubricant additive of claim 4 wherein said sulfurized triglyceride vegetable oil comprises about 50% triglyceride vegetable oil and about 50% vegetable oil wax ester.
Claim 9
Dependent Claim
27 words
The lubricant additive of claim 4 wherein said sulfurized triglyceride vegetable oil comprises the sulfurized product of about 50% triglyceride vegetable oil and about 50% jojoba oil.
Claim 10
Dependent Claim
26 words
The lubricant additive of claim 4 wherein the vegetable oil is selected from the group consisting of meadowfoam oil, rapeseed oil, crambe oil and combinations 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) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |