US4088586A
Expired / Lapsed
US
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Mannich base composition
Assignee: Chevron USA Inc
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Filing: 1976-06-07
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Granted: 1978-05-09
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Expires: 1996-06-07
Abstract
Abstract A new Mannich base, prepared by condensing tetrapropenylphenol, formaldehyde and diethylenetriamine wherein the molar ratio of reactants is 1 mol tetrapropenylphenol to 0.5 to 0.85 mols formaldehyde to at least 0.3 mols of diethylenetriamine, and the calcium salt thereof are useful as dispersant additives for lubricating oils, particularly for use in marine cylinder lubricating oils.
Inventors
- 👤 Donovan R. Wilgus
- 👤 John M. King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:40
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/16; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/028; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/086; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10N; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
30 words
The condensation product of tetrapropenylphenol, formaldehyde and diethylenetriamine wherein the molar ratio of reactants is 1 mol tetrapropenylphenol to 0.5 to 0.85 mol formaldehyde to at least 0.3 mol diethylenetriamine.
Claim 2
Dependent Claim
30 words
The condensation product of tetrapropenylphenol, formaldehyde and diethylenetriamine wherein the molar ratio of reactants is 1 mol tetrapropenylphenol to 0.5 to 0.85 mol formaldehyde to at least 0.3 mol diethylenetriamine.
Claim 3
Dependent Claim
9 words
The calcium salt of the product of claim 1.
Claim 4
Dependent Claim
28 words
The product of claim 2 wherein the molar ratio of reactants is 1 mol tetrapropenylphenol to 0.6 to 0.8 mol of formaldehyde to 0.3 to 1 mol diethylenetriamine.
Claim 5
Dependent Claim
23 words
The product of claim 3 wherein the molar ratio of reactants is 1 mol phenol to 0.75 mol formaldehyde to 0.5 mol diethylenetriamine.
Claim 6
Dependent Claim
14 words
A lubricating oil composition containing a dispersant amount of the product of claim 2.
Claim 7
Dependent Claim
17 words
A lubricating oil composition containing from 0.3 to 35% by weight of the product of claim 3.
Claim 8
Dependent Claim
17 words
A lubricating oil composition containing from 3.0 to 30% by weight of the product of claim 4.
Claim 9
Dependent Claim
14 words
The composition of claim 7 which also contains 1-10% of an alkenyl succinimide dispersant.
Claim 10
Dependent Claim
24 words
A lubricating oil concentrate containing 10-70% by weight of an oil of lubricating viscosity and 90-30% by weight of the product of claim 2.
Claim 11
Dependent Claim
24 words
A lubricating oil concentrate containing 30-50% by weight of an oil of lubricating viscosity and 70-50% by weight of the product of claim 4.
Claim 12
Dependent Claim
31 words
A process for the preparation of the product of claim 1 which comprises condensing 1 mol of tetrapropenylphenol with 0.5 to 0.85 mol formaldehyde and at least 0.3 mol of diethylenetriamine.
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) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |