US4006089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyoxyethylene polyamine Mannich base products and use of same in fuels and lubricants
Assignee: Mobil Oil AS
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Filing: 1974-11-19
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Granted: 1977-02-01
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Expires: 1994-11-19
Abstract
Abstract The detergency properties of a fuel or a lubricant are improved by adding thereto a Mannich base product prepared by reacting a high molecular weight alkyl substituted hydroxyaromatic compound, a polyoxyethylene polyamine and an aldehyde.
Inventors
- 👤 Sheldon Chibnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:04
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/238; C10L1/2383; C10L1/2387; C10M; C10M159/00; C10M159/12; C10M159/16; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2223/00; C10M2223/12; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A lubricant composition comprising a major amount of a lubricating oil of lubricating viscosity and a minor detergent amount of a Mannich base product which is the condensation product of (1) a polyalkyl-substituted hydroxyaromatic compound wherein the polyalkyl has a number average molecular weight of from about 100 to about 4000, (2) an amine having one of the formulae NH.sub.2 CH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NH.sub.2 nh.sub.2 ch(ch.sub.3)ch.sub.2 [och.sub.2 ch(ch.sub.3 )].sub.a [OCH.sub.2 CH.sub.2 ].sub.b [OCH.sub.2 CH(CH.sub.3)].sub.c NH.sub.2 and ##STR3## wherein x is chosen such that the molecular weight of the amine is from about 142 to about 2000, b is from about 10 to about 50, a + c is about 3.5 and the sum of l, m and n is from about 3 to about 10 and (3) an aldehyde wherin the respective molar ratios of reactants are 1:0.1-10:0.1-10.
Claim 2
Dependent Claim
138 words
A lubricant composition comprising a major amount of a lubricating oil of lubricating viscosity and a minor detergent amount of a Mannich base product which is the condensation product of (1) a polyalkyl-substituted hydroxyaromatic compound wherein the polyalkyl has a number average molecular weight of from about 100 to about 4000, (2) an amine having one of the formulae NH.sub.2 CH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NH.sub.2 nh.sub.2 ch(ch.sub.3)ch.sub.2 [och.sub.2 ch(ch.sub.3 )].sub.a [OCH.sub.2 CH.sub.2 ].sub.b [OCH.sub.2 CH(CH.sub.3)].sub.c NH.sub.2 and ##STR3## wherein x is chosen such that the molecular weight of the amine is from about 142 to about 2000, b is from about 10 to about 50, a + c is about 3.5 and the sum of l, m and n is from about 3 to about 10 and (3) an aldehyde wherin the respective molar ratios of reactants are 1:0.1-10:0.1-10.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein the molecular weight of the alkyl substituent is from about 400 to about 2500.
Claim 4
Dependent Claim
10 words
The composition of claim 1 wherein the polyalkyl is polypropyl.
Claim 5
Dependent Claim
10 words
The composition of claim 1 wherein the polyalkyl is polybutyl.
Claim 6
Dependent Claim
10 words
The composition of claim 1 wherein the aldehyde is paraformaldehyde.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein the amine has a molecular weight of about 400.
Claim 8
Dependent Claim
14 words
The composition of claim 1 wherein the amine has a molecular weight of 1000.
Claim 9
Dependent Claim
15 words
The composition of claim 1 wherein the amine has a molecular weight of about 2000.
Claim 10
Dependent Claim
29 words
The composition of claim 1 wherein the polyalkyl is polypropyl having a molecular weight of 800, the amine has a molecular weight of 400 and the aldehyde is paraformaldehyde.
Claim 11
Dependent Claim
29 words
The composition of claim 1 wherein the polyalkyl is polypropyl having a molecular weight of 800, the amine has a molecular weight of 1000 and the aldehyde is paraformaldehyde.
Claim 12
Dependent Claim
29 words
The composition of claim 1 wherein the polyalkyl is polybutyl having a molecular weight of 2000, the amine has a molecular weight of 2000 and the aldehyde is paraformaldehyde.
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) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |