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US4421659A
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Zwitterionic quaternary ammonium sulfates and lubricants containing same
Assignee: Mobil Oil AS
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Filing: 1982-06-30
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Granted: 1983-12-20
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Expires: 2002-06-30
Abstract
Abstract Zwitterionic quaternary ammonium sulfates of the formulas hereinafter disclosed are provided as new compounds and as effective lubricant and fuel additives. They are multifunctional, having, among others, the ability to reduce corrosion, oxidation and friction in, for example, an internal combustion engine and thereby to reduce fuel consumption.
Inventors
- 👤 Andrew G. Horodysky
- 👤 Joan M. Kaminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:40
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2431; C10L10/04; C10M; C10M135/00; C10M135/08
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
44 words
A compound of the formula ##STR2## wherein R is a C 7 to C 31 hydrocarbyl group, R 1 is an alkyl or alkylene group containing 1 or 2 carbon atoms and R 2 is a hydrocarbylene group containing 2 to 6 carbon atoms.
Claim 2
Dependent Claim
44 words
A compound of the formula ##STR2## wherein R is a C 7 to C 31 hydrocarbyl group, R 1 is an alkyl or alkylene group containing 1 or 2 carbon atoms and R 2 is a hydrocarbylene group containing 2 to 6 carbon atoms.
Claim 3
Dependent Claim
17 words
The compound of claim 1 wherein R is selected from alkyl, aryl, alkaryl, aralkyl and cycloaliphatic groups.
Claim 4
Dependent Claim
16 words
The compound of claim 2 wherein the aryl group contains from 6 to 14 carbon atoms.
Claim 5
Dependent Claim
14 words
The compound of claim 3 wherein the aryl group is phenyl, naphthyl or anthryl.
Claim 6
Dependent Claim
15 words
The compound of claim 2 wherein the alkyl group contains 9 to 20 carbon atoms.
Claim 7
Dependent Claim
10 words
The compound of claim 1 wherein R 2 is alkylene.
Claim 8
Dependent Claim
22 words
The compound of claim 1, formula I, wherein R is a heptadecenyl group and R 1 and R 2 are ethyl groups.
Claim 9
Dependent Claim
22 words
The compound of claim 1, formula II, wherein R is a heptadecenyl group and R 1 and R 2 are ethyl groups.
Claim 10
Dependent Claim
65 words
A lubricant or liquid fuel composition comprising a major proportion of a lubricant or fuel and a friction reducing amount of a compound of the formula: ##STR3## wherein R is a C 7 to C 31 hydrocarbyl group, R 1 is an alkyl or alkylene group containing 1 to 2 carbon atoms and R 2 is a hydrocarbylene group containing 2 to 6 carbon atoms.
Claim 11
Dependent Claim
65 words
A lubricant or liquid fuel composition comprising a major proportion of a lubricant or fuel and a friction reducing amount of a compound of the formula: ##STR3## wherein R is a C 7 to C 31 hydrocarbyl group, R 1 is an alkyl or alkylene group containing 1 to 2 carbon atoms and R 2 is a hydrocarbylene group containing 2 to 6 carbon atoms.
Claim 12
Dependent Claim
20 words
The composition of claim 9 wherein in the compound R is selected from alkyl, aryl, alkaryl, aralkyl and cycloaliphatic groups.
Claim 13
Dependent Claim
19 words
The composition of claim 10 wherein in the compound the aryl group contains from 6 to 14 carbon atoms.
Claim 14
Dependent Claim
17 words
The composition of claim 11 wherein in the compound the aryl group is phenyl, naphthyl or anthryl.
Claim 15
Dependent Claim
18 words
The composition of claim 10 wherein in the compound the alkyl group contains 9 to 20 carbon atoms.
Claim 16
Dependent Claim
13 words
The composition of claim 9 wherein in the compound R 2 is alkylene.
Claim 17
Dependent Claim
26 words
The composition of claim 9 wherein in the compound of formula 1 R is a heptadecenyl group and R 1 and R 2 are ethyl groups.
Claim 18
Dependent Claim
26 words
The composition of claim 9 wherein in the compound of formula II R is a heptadecenyl group and R 1 and R 2 are ethyl group.
Claim 19
Dependent Claim
43 words
The composition of claims 9, 10, 11, 12, 13, 14, 15, or 16 wherein the lubricant is (1) a mineral oil, (2) a synthetic oil or mixtures of synthetic oils, (3) a mixture of (1) and (2), or (3) a grease from these.
Claim 20
Dependent Claim
18 words
The composition of claim 17 wherein the lubricant is a synthetic oil or a mixture of synthetic oils.
Claim 21
Dependent Claim
12 words
The composition of claim 9 wherein the lubricant is a mineral oil.
Claim 22
Dependent Claim
16 words
The composition of claim 9 wherein the lubricant is a mixture of mineral and synthetic oils.
Claim 23
Dependent Claim
11 words
The composition of claim 9 wherein the lubricant is a grease.
Claim 24
Dependent Claim
12 words
The composition of claim 9 wherein the fuel is a liquid hydrocarbon.
Claim 25
Dependent Claim
12 words
The composition of claim 22 wherein the hydrocarbon is a diesel oil.
Claim 26
Dependent Claim
12 words
The composition of claim 22 wherein the hydrocarbon is a fuel oil.
Claim 27
Dependent Claim
11 words
The composition of claim 22 wherein the hydrocarbon is a gasoline.
Claim 28
Dependent Claim
14 words
The composition of claim 9 wherein the fuel is an alcohol or mixtures thereof.
Claim 29
Dependent Claim
10 words
The composition of claim 26 wherein the alcohol is methanol.
Claim 30
Dependent Claim
10 words
The composition of claim 26 wherein the alcohol is ethanol.
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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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |