US5023312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Meadowfoam oil and meadowfoam oil derivatives as lubricant additives
Assignee: Individual
•
Filing: 1990-04-19
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Granted: 1991-06-11
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Expires: 2010-04-19
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, amnd phosphite adducts of triglyceride meadowfoam oil or wax ester of meadowfoam oil. There is also disclosed a proceess 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
2026-11-02 04:58
CPC Classifications
C; C10; C10M; C10M163/00; C10M135/00; C10M135/02; C10M135/06; C10M159/00; C10M159/02; 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: 5
Claim 1
Independent Claim
61 words
A lubricant additive comprising a phosphite adduct of triglyceride meadowfoam oil, wherein the phosphite adduct 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 2
Dependent Claim
61 words
A lubricant additive comprising a phosphite adduct of triglyceride meadowfoam oil, wherein the phosphite adduct 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 3
Dependent Claim
29 words
The lubricant additive of claim 1 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 4
Dependent Claim
10 words
The lubricant additive of claim 2 wherein R is n-butyl.
Claim 5
Dependent Claim
23 words
The lubricant additive of claim 1 wherein the phosphite adduct point of attachment to triglyceride meadowfoam oil is at a carbon-carbon double bond.
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) | 1994-06-10 | 1994-12-10 | 1995-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-10 | 1998-12-10 | 1999-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-10 | 2002-12-10 | 2003-06-11 | $7700.00 | Window Closed / Lapsed |