US4584113A
Expired / Lapsed
US
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Sulfurized compositions and lubricants containing them
Assignee: Lubrizol Corp
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Filing: 1984-10-25
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Granted: 1986-04-22
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Expires: 2004-10-25
Abstract
Abstract A sulfurized composition prepared by sulfurizing a mixture of at least one terpene and at least one other olefinic compound is described. More particularly, sulfurized compositions prepared by sulfurizing a mixture of pine oil and at least one other olefinic compound are described. Such sulfurized compositions are useful as lubricant additive compositions, and more particularly, as additive compositions in industrial and gear lubricants. The compositions when added to lubricants provide lubricants which exhibit improved antioxidant characteristics, nitrile seal compatibility and acceptable color characteristics.
Inventors
- 👤 Reed H. Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:30
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C07; C07G; C07G99/00; C07G99/002; C07G99/0022; C07G99/0023; C10M135/04; C10M135/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
106 words
A sulfurized composition prepared by the process which comprises sulfurizing a mixture comprising (A) at least one terpene compound, and (B) at least one other olefinic compound of the formula: R.sup.1 R.sup.2 C═CR.sup.3 R.sup.4 wherein R 1 , R 2 , R 3 and R 4 are, independently, hydrogen or an organic group and the olefinic double bond is a non-aromatic double bond; wherein (A) and (B) are sulfurized in the presence of sulfur, sulfur halide, or a mixture of sulfur or sulfur dioxide and hydrogen sulfide; and wherein the equivalent ratio of the mixture of (A) to (B) is from about 1:20 to about 10:1.
Claim 2
Dependent Claim
106 words
A sulfurized composition prepared by the process which comprises sulfurizing a mixture comprising (A) at least one terpene compound, and (B) at least one other olefinic compound of the formula: R.sup.1 R.sup.2 C═CR.sup.3 R.sup.4 wherein R 1 , R 2 , R 3 and R 4 are, independently, hydrogen or an organic group and the olefinic double bond is a non-aromatic double bond; wherein (A) and (B) are sulfurized in the presence of sulfur, sulfur halide, or a mixture of sulfur or sulfur dioxide and hydrogen sulfide; and wherein the equivalent ratio of the mixture of (A) to (B) is from about 1:20 to about 10:1.
Claim 3
Dependent Claim
30 words
The composition of claim 1 wherein (A) comprises at least one sulfurized terpene compound or a mixture of at least one terpene compound and at least one sulfurized terpene compound.
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein the terpene compound (A) comprises a mixture of terpene hydrocarbons and their oxygen-containing derivatives.
Claim 5
Dependent Claim
16 words
The composition of claim 1 wherein the terpene compound is a turpentine, pine oil, or dipentene.
Claim 6
Dependent Claim
12 words
The composition of claim 3 wherein the oxygen-containing derivatives are terpene alcohols.
Claim 7
Dependent Claim
13 words
The composition of claim 4 wherein the terpene compound is a pine oil.
Claim 8
Dependent Claim
56 words
The composition of claim 1 wherein the other olefinic compound (B) is (i) at least one aliphatic, aryl aliphatic or alicyclic olefinic hydrocarbon containing at least about 3 carbon atoms, (ii) at least one unsaturated fatty acid or unsaturated fatty acid ester, (iii) at least one sulfurized derivative of (i) or (ii), or (iv) mixtures thereof.
Claim 9
Dependent Claim
16 words
The composition of claim 7 wherein the olefin (B) is at least one aliphatic olefinic compound.
Claim 10
Dependent Claim
26 words
The composition of claim 8 wherein the olefinic compound is at least one of propylene, isobutene, and dimers, trimers, tetramers and low molecular weight polymers thereof.
Claim 11
Dependent Claim
26 words
The composition of claim 1 wherein the other olefinic compound (B) is at least one aliphatic olefin containing from about 3 to about 36 carbon atoms.
Claim 12
Dependent Claim
14 words
The composition of claim 8 wherein the aliphatic olefin is at least one alpha-olefin.
Claim 13
Dependent Claim
17 words
The composition of claim 11 wherein the alpha-olefin contains from about 3 to about 36 carbon atoms.
Claim 14
Dependent Claim
30 words
The composition of claim 1 wherein the olefinic compound (B) comprises a mixture of at least one alpha-olefin and at least one unsaturated fatty acid or unsaturated fatty acid ester.
Claim 15
Dependent Claim
14 words
The composition of claim 1 wherein the mixture is sulfurized by reaction with sulfur.
Claim 16
Dependent Claim
18 words
The composition of claim 1 wherein the ratio of (A) to (B) is from about 1:10 to 2:1.
Claim 17
Dependent Claim
19 words
The composition of claim 1 wherein (A) is a sulfurized terpene and sulfurization is effected by heating the mixture.
Claim 18
Dependent Claim
20 words
The composition of claim 1 wherein (B) is a sulfurized olefinic compound and sulfurization is effected by heating the mixture.
Claim 19
Dependent Claim
32 words
The composition of claim 1 wherein (A) is at least one sulfurized terpene, (B) is at least one other olefinic compound which is sulfurized, and sulfurization is effected by heating the mixture.
Claim 20
Dependent Claim
23 words
The composition of claim 1 wherein the olefin (B) is at least one unsaturated fatty acid, unsaturated fatty acid ester, or mixtures thereof.
Claim 21
Dependent Claim
13 words
The composition of claim 1 wherein the mixture also contains a sulfurization promoter.
Claim 22
Dependent Claim
102 words
A sulfurized composition prepared by the process which comprises the steps of (A) preparing a mixture comprising sulfur and at least one terpene compound, (B) heating said mixture to a temperature of up to about 150° C. and maintaining this temperature for a period of from about 2 to 20 hours, (C) raising the temperature of the mixture to up to about 200° C. while removing water and volatile materials, (D) adding at least one aliphatic olefinic compound to the mixture and maintaining the mixture at a temperature up to about 200° C. for a period of up to about 15 hours.
Claim 23
Dependent Claim
102 words
A sulfurized composition prepared by the process which comprises the steps of (A) preparing a mixture comprising sulfur and at least one terpene compound, (B) heating said mixture to a temperature of up to about 150° C. and maintaining this temperature for a period of from about 2 to 20 hours, (C) raising the temperature of the mixture to up to about 200° C. while removing water and volatile materials, (D) adding at least one aliphatic olefinic compound to the mixture and maintaining the mixture at a temperature up to about 200° C. for a period of up to about 15 hours.
Claim 24
Dependent Claim
18 words
The composition of claim 21 wherein about one equivalent of olefin is added per equivalent of terpene compound.
Claim 25
Dependent Claim
13 words
The composition of claim 21 wherein the terpene compound is a pine oil.
Claim 26
Dependent Claim
12 words
The composition of claim 21 wherein the olefin compound is an alpha-olefin.
Claim 27
Dependent Claim
18 words
The composition of claim 21 wherein the olefin compound contains from about 3 to about 36 carbon atoms.
Claim 28
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 1.
Claim 29
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 21.
Claim 30
Dependent Claim
29 words
A lubricating composition comprising a major proportion of lubricating oil and a minor proportion, sufficient to improve the oxidation inhibiting properties, of a sulfurized composition according to claim 1.
Claim 31
Dependent Claim
29 words
A lubricating composition comprising a major proportion of lubricating oil and a minor proportion, sufficient to improve the oxidation inhibiting properties, of a sulfurized composition according to claim 21.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |