US4053427A
Expired / Lapsed
US
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Cross-sulfurized olefins and fatty acid monoesters in lubricating oils
Assignee: Chevron USA Inc
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Filing: 1971-07-26
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Granted: 1977-10-11
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Expires: 1991-07-26
Abstract
Abstract Lubricating oil additives comprising a class of sulfurized mixtures of fatty acid mono esters and olefins are provided, which have the properties of extreme pressure lubrication, stability and noncorrosivity towards copper.
Inventors
- 👤 Bruce W. Hotten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:50
CPC Classifications
C; C07; C07G; C07G99/00; C07G99/002; C10; C10M; C10M135/00; C10M135/02; C10M2203/00; C10M2203/06; C10M2203/10; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/04; C10M2207/10; C10M2207/16; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2221/00; C10M2221/02; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2010/08
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
59 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with fatty acid esters of C 10 -C 25 unsaturated fatty acid and a C 1 -C 25 alkyl alcohol, in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 2
Dependent Claim
59 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with fatty acid esters of C 10 -C 25 unsaturated fatty acid and a C 1 -C 25 alkyl alcohol, in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 3
Dependent Claim
52 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with derosinified tall oil esters of a C 1 -C 25 alkyl alcohol in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 4
Dependent Claim
52 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with derosinified tall oil esters of a C 1 -C 25 alkyl alcohol in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 5
Dependent Claim
27 words
A lubricating composition according to claim 2 wherein the alcohol is a C 14 -C 15 alcohol and the olefins are C 11 -C 18 aliphatic olefins.
Claim 6
Dependent Claim
44 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1% to about 10% by weight of a sulfurized mixture of C 10 -C 25 unsaturated fatty acids, C 1 -C 25 alkyl alcohol, and C 10 -C 25 olefins.
Claim 7
Dependent Claim
44 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1% to about 10% by weight of a sulfurized mixture of C 10 -C 25 unsaturated fatty acids, C 1 -C 25 alkyl alcohol, and C 10 -C 25 olefins.
Claim 8
Dependent Claim
36 words
A lubricating composition according to claim 3 wherein the mol ratio of olefin to acid and alcohol is 1-2:1:1 by weight and the mixture is sulfurized to the extent of 3 to 15% sulfur by weight.
Claim 9
Dependent Claim
58 words
A process of producing a cross-sulfurized ester-olefin comprising, the mixing of C 10 -C 25 unsaturated fatty acids, C 1 -C 25 alkyl alcohol and C 10 -C 25 olefins in the mol ratio of about 1:1:1-2 with sulfur, and reacting said mixture in an inert atmosphere at a temperature of about 160° C. to about 180° C.
Claim 10
Dependent Claim
58 words
A process of producing a cross-sulfurized ester-olefin comprising, the mixing of C 10 -C 25 unsaturated fatty acids, C 1 -C 25 alkyl alcohol and C 10 -C 25 olefins in the mol ratio of about 1:1:1-2 with sulfur, and reacting said mixture in an inert atmosphere at a temperature of about 160° C. to about 180° C.
Claim 11
Dependent Claim
9 words
A composition prepared by the method of claim 6.
Claim 12
Dependent Claim
59 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with fatty acid esters of C 10 -C 25 unsaturated fatty acid and a C 1 -C 25 alkenyl alcohol, in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 13
Dependent Claim
59 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with fatty acid esters of C 10 -C 25 unsaturated fatty acid and a C 1 -C 25 alkenyl alcohol, in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 14
Dependent Claim
52 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with derosinified tall oil esters of a C 1 -C 25 alkenyl alcohol in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 15
Dependent Claim
52 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with derosinified tall oil esters of a C 1 -C 25 alkenyl alcohol in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 16
Dependent Claim
27 words
A lubricating composition according to claim 9 wherein the alcohol is a C 14 -C 15 alcohol and the olefins are C 11 -C 18 aliphatic olefins.
Claim 17
Dependent Claim
44 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1% to about 10% by weight of a sulfurized mixture of C 10 -C 25 unsaturated fatty acids, C 1 -C 25 alkenyl alcohol, and C 10 -C 25 olefins.
Claim 18
Dependent Claim
44 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1% to about 10% by weight of a sulfurized mixture of C 10 -C 25 unsaturated fatty acids, C 1 -C 25 alkenyl alcohol, and C 10 -C 25 olefins.
Claim 19
Dependent Claim
33 words
A lubricating composition according to claim 10 wherein the ratio of olefin-to-acid and alcohol is 1-2:1:1 by weight and the mixture is sulfurized to the extent of 3 to 15% sulfur by weight.
Claim 20
Dependent Claim
58 words
A process of producing a cross-sulfurized ester-olefin comprising, the mixing of C 10 -C 25 unsaturated fatty acids, C 1 -C 25 alkenyl alcohol and C 10 -C 25 olefins in the mol ratio of about 1:1:1-2 with sulfur, and reacting said mixture in an inert atmosphere at a temperature of about 160° C. to about 180° C.
Claim 21
Dependent Claim
58 words
A process of producing a cross-sulfurized ester-olefin comprising, the mixing of C 10 -C 25 unsaturated fatty acids, C 1 -C 25 alkenyl alcohol and C 10 -C 25 olefins in the mol ratio of about 1:1:1-2 with sulfur, and reacting said mixture in an inert atmosphere at a temperature of about 160° C. to about 180° C.
Claim 22
Dependent Claim
9 words
A composition prepared by the process of claim 13.
Claim 23
Dependent Claim
59 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with fatty acid esters of C 10 -C 25 saturated fatty acid and a C 1 -C 25 alkenyl alcohol in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 24
Dependent Claim
59 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1 to about 10% by weight of a sulfurized mixture of C 10 -C 25 olefins with fatty acid esters of C 10 -C 25 saturated fatty acid and a C 1 -C 25 alkenyl alcohol in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 25
Dependent Claim
44 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1% to about 10% by weight of a sulfurized mixture of C 10 -C 25 saturated fatty acids, C 1 -C 25 alkenyl alcohol, and C 10 -C 25 olefins.
Claim 26
Dependent Claim
44 words
A lubricating composition comprising a major proportion of a lubricating oil and from about 0.1% to about 10% by weight of a sulfurized mixture of C 10 -C 25 saturated fatty acids, C 1 -C 25 alkenyl alcohol, and C 10 -C 25 olefins.
Claim 27
Dependent Claim
58 words
A process of producing a cross-sulfurized ester-olefin comprising, the mixing of C 10 -C 25 saturated fatty acids, C 1 -C 25 alkenyl alcohol and C 10 -C 25 olefins in the mol ratio of about 1:1:1-2 with sulfur, and reacting said mixture in an inert atmosphere at a temperature from about 160° C. to about 180° C.
Claim 28
Dependent Claim
58 words
A process of producing a cross-sulfurized ester-olefin comprising, the mixing of C 10 -C 25 saturated fatty acids, C 1 -C 25 alkenyl alcohol and C 10 -C 25 olefins in the mol ratio of about 1:1:1-2 with sulfur, and reacting said mixture in an inert atmosphere at a temperature from about 160° C. to about 180° C.
Claim 29
Dependent Claim
9 words
A composition prepared by the method of claim 17.
Claim 30
Dependent Claim
59 words
A lubricating composition comprising a major proportion of a lubricating oil and an extreme pressure improving amount of a cosulfurized mixture of a C 10 -C 25 olefin with a fatty acid ester of a C 10 -C 25 unsaturated fatty acid and a C 1 -C 25 monohydric alkanol in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 31
Dependent Claim
59 words
A lubricating composition comprising a major proportion of a lubricating oil and an extreme pressure improving amount of a cosulfurized mixture of a C 10 -C 25 olefin with a fatty acid ester of a C 10 -C 25 unsaturated fatty acid and a C 1 -C 25 monohydric alkanol in a mol ratio of olefin-to-ester of about 1-2:1.
Claim 32
Independent Claim
60 words
A method for preparing a sulfurized composition of matter which comprises reacting at about 160°-180° C. sulfur with a mixture of a C 10 -C 25 olefin with a fatty acid ester of a C 10 -C 25 unsaturated fatty acid and a C 1 -C 25 monohydric alkanol in a mol ratio of olefin to ester of about 1-2:1.
Claim 33
Independent Claim
60 words
A method for preparing a sulfurized composition of matter which comprises reacting at about 160°-180° C. sulfur with a mixture of a C 10 -C 25 olefin with a fatty acid ester of a C 10 -C 25 unsaturated fatty acid and a C 1 -C 25 monohydric alkanol in a mol ratio of olefin to ester of about 1-2:1.
Claim 34
Dependent Claim
9 words
A composition prepared by the method of claim 20.
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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) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |