Patent US4157308A successfully refreshed from Google Patents.
US4157308A
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Mannich base composition
Assignee: Chevron USA Inc
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Filing: 1977-09-30
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Granted: 1979-06-05
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Expires: 1997-09-30
Abstract
Abstract New Mannich bases and the alkaline earth metal salts thereof are prepared by condensing formaldehyde and a polyamine with a phenolic mixture consisting of (1) from 95 to 30% phenol alkylated with a propylene tetramer and (2) from 5 to 70% phenol alkylated with a straight-chain alpha-olefin of from 16 to about 28 carbon atoms or alpha-olefin mixtures wherein the alpha-olefins are of from 16 to about 28 carbon atoms. They are useful as 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
2026-11-04 05:43
CPC Classifications
C; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2221/00; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
87 words
A Mannich base condensation product and the alkaline earth metal salts thereof selected from the group consisting of (A) the Mannich base prepared by condensing formaldehyde and a polyamine with a phenolic mixture consisting of (1) from 95 to 30% phenol alkylated with a propylene tetramer, and (2) from 5 to 70% phenol alkylated with a straightchain alpha-olefin of from 16 to 28 carbon atoms or alpha-olefin mixtures wherein the olefins are of from 16 to 28 carbon atoms, and (B) the alkaline earth metal salts thereof.
Claim 2
Dependent Claim
87 words
A Mannich base condensation product and the alkaline earth metal salts thereof selected from the group consisting of (A) the Mannich base prepared by condensing formaldehyde and a polyamine with a phenolic mixture consisting of (1) from 95 to 30% phenol alkylated with a propylene tetramer, and (2) from 5 to 70% phenol alkylated with a straightchain alpha-olefin of from 16 to 28 carbon atoms or alpha-olefin mixtures wherein the olefins are of from 16 to 28 carbon atoms, and (B) the alkaline earth metal salts thereof.
Claim 3
Dependent Claim
25 words
The calcium salt of said condensation product of claim 1 wherein said olefin is a mixture of alpha-olefins of 16 to about 28 carbon atoms.
Claim 4
Dependent Claim
25 words
The magnesium salt of said condensation product of claim 1 wherein said olefin is a mixture of alpha-olefins of 16 to about 28 carbon atoms.
Claim 5
Dependent Claim
31 words
A lubricating oil composition comprising an oil of lubricating viscosity and from 0.1 to 40% by weight of the condensation product or an alkaline earth metal salt thereof of claim 1.
Claim 6
Dependent Claim
24 words
A lubricating oil composition comprising an oil of lubricating viscosity and from 0.1 to 40% by weight of the calcium salt of claim 2.
Claim 7
Dependent Claim
24 words
A lubricating oil composition comprising an oil of lubricating viscosity and from 0.1 to 40% by weight of the magnesium salt of claim 3.
Claim 8
Dependent Claim
38 words
A lubricating oil concentrate comprising from 15 to 60% by weight of an oil of lubricating viscosity and from 85 to 40% by weight of the condensation product or an alkaline earth metal salt thereof of claim 1.
Claim 9
Dependent Claim
109 words
a process for preparing a Mannich base condensation product or an alkaline earth metal salt thereof which comprises condensing 0.5 to 0.85 mol formaldehyde, at least 0.3 mol of a polyamine, and 1.0 mol of a phenolic mixture consisting of (1) from 95 to 30% phenol alkylated with propylene tetramer, and (2) from 5 to 70% phenol alkylated with a straight-chain alpha-olefin of from 16 to 28 carbon atoms or alpha-olefin mixtures wherein the olefins are of from 16 to 28 carbon atoms, and, optionally, forming the alkaline earth metal salt thereof by treating the Mannich base with an alkaline earth metal hydroxide in the presence of a promotor.
Claim 10
Dependent Claim
109 words
a process for preparing a Mannich base condensation product or an alkaline earth metal salt thereof which comprises condensing 0.5 to 0.85 mol formaldehyde, at least 0.3 mol of a polyamine, and 1.0 mol of a phenolic mixture consisting of (1) from 95 to 30% phenol alkylated with propylene tetramer, and (2) from 5 to 70% phenol alkylated with a straight-chain alpha-olefin of from 16 to 28 carbon atoms or alpha-olefin mixtures wherein the olefins are of from 16 to 28 carbon atoms, and, optionally, forming the alkaline earth metal salt thereof by treating the Mannich base with an alkaline earth metal hydroxide in the presence of a promotor.
Claim 11
Dependent Claim
10 words
The product prepared according to the process of claim 8.
Claim 12
Dependent Claim
9 words
The calcium salt of the product of claim 9.
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) | 1982-06-04 | 1982-12-04 | 1983-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-04 | 1986-12-04 | 1987-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-04 | 1990-12-04 | 1991-06-05 | $7700.00 | Window Closed / Lapsed |