US3850825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfurized fatty oils
Assignee: BP Corp North America Inc
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Filing: 1973-01-02
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Granted: 1974-11-26
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Expires: 1993-01-02
Abstract
Abstract Sulfurization with elemental sulfur of a fatty mixture consisting essentially of about 80-95 weight percent prime burning lard oil and about 5-20 weight percent alkyl oleate yields a sulfur-containing oil-soluble product suitable for use as a substitute for sulfurized sperm oil additives for imparting extreme pressure properties to high aniline point mineral oil lubricants.
Inventors
- 👤 P Vienna
- 👤 Herder M Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:43
CPC Classifications
C; C07; C07G; C07G99/00; C07G99/002; C10; C10M; C10M135/00; C10M135/02; C10M135/06; C10M2207/00; C10M2207/02; C10M2207/023; C10M2219/00; C10M2219/02; C10M2219/024; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02; C10N2040/20; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A SULFURIZED FATTY OIL COMPOSITION CONSISTING ESSENTIALLY OF A BLEND OF (A) ABOUT 80 WEIGHT PERCENT TO ABOUT 95 WEIGHT PERCENT PRIME BURNING LARD OIL AND (B) ABOUT 5 WEIGHT PERCENT TO ABOUT 20 WEIGHT PERCENT ALKYL OLEATE SULFURIZED TO CONTAIN ABOUT 8 WEIGHT PERCENT TO ABOUT 12 WEIGHT PERCENT BOUND SULFUR AND NOT MORE THAN 0.3 WEIGHT PERCENT FREE SULFUR, SAID ALKYL OLEATE BEING A MIXTURE OF ALKYL ESTERS OF SATURATED AND UNSATURATED FATTY ACIDS HAVING 14 TO 18 CARBONS CONTAINING AT LEAST 50 WEIGHT PERCENT UNSATURATED FATTY ACIDS WITH NOT MORE THAN 10 WEIGHT PERCENT OF UNSATURATED FATTY ACIDS CONTAINING CONJUGATED DUBLE BONDS IN THE UNSATURATED FATTY ACID FRACTION AND SAID ALKYL GROUP HAVING 1 TO 3 CARBON ATOMS.
Claim 2
Dependent Claim
121 words
A SULFURIZED FATTY OIL COMPOSITION CONSISTING ESSENTIALLY OF A BLEND OF (A) ABOUT 80 WEIGHT PERCENT TO ABOUT 95 WEIGHT PERCENT PRIME BURNING LARD OIL AND (B) ABOUT 5 WEIGHT PERCENT TO ABOUT 20 WEIGHT PERCENT ALKYL OLEATE SULFURIZED TO CONTAIN ABOUT 8 WEIGHT PERCENT TO ABOUT 12 WEIGHT PERCENT BOUND SULFUR AND NOT MORE THAN 0.3 WEIGHT PERCENT FREE SULFUR, SAID ALKYL OLEATE BEING A MIXTURE OF ALKYL ESTERS OF SATURATED AND UNSATURATED FATTY ACIDS HAVING 14 TO 18 CARBONS CONTAINING AT LEAST 50 WEIGHT PERCENT UNSATURATED FATTY ACIDS WITH NOT MORE THAN 10 WEIGHT PERCENT OF UNSATURATED FATTY ACIDS CONTAINING CONJUGATED DUBLE BONDS IN THE UNSATURATED FATTY ACID FRACTION AND SAID ALKYL GROUP HAVING 1 TO 3 CARBON ATOMS.
Claim 3
Dependent Claim
10 words
The composition of claim 1 wherein (b) is methyl oleate.
Claim 4
Dependent Claim
21 words
The composition of claim 2 wherein the amount of bound sulfur is about 9 weight percent to about 11 weight percent.
Claim 5
Dependent Claim
29 words
The composition of claim 2 wherein (a) is about 85 weight percent to about 93 weight percent, and (b) is about 7 weight percent to about 15 weight percent.
Claim 6
Dependent Claim
29 words
The composition of claim 2 wherein (a) is about 80 weight percent, (b) is about 20 weight percent, and the amount of bound sulfur is about 10 weight percent.
References Cited (Backward Citations)
US2179061A
Cited
US3740333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |