US4157309A
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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 sulfur-containing phenolic mixture consisting of (1) from 5 to 35 mol percent of a sulfurized alkylphenol of the formula ##STR1## wherein R is C 8 -C 36 alkyl, n is an integer from 1 to 8, and y is an integer from 1 to 9, and (2) from 95 to 65 mol percent of phenol alkylated with a propylene tetramer. They are useful as highly alkaline additives for lubricating oils, particularly for use in marine cylinder, railroad, and automotive diesel lubricating oils.
Inventors
- 👤 Donovan R. Wilgus
- 👤 John M. King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:51
CPC Classifications
C; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C10; C10M; C10M159/00; C10M159/12; C10M159/16; C10M2203/00; C10M2203/10; C10M2219/00; C10M2219/04; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/02; C10N; C10N2010/00; C10N2010/04; C10N2070/00; C10N2070/02; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
94 words
A Mannich base condensation product selected from the group consisting of (A) the Mannich base condensation product prepared by condensing formaldehyde and a polyamine with a sulfur-containing phenolic mixture consisting of (1) from 5 to 35 mol percent of a sulfurized alkylphenol of the formula ##STR4## wherein R is C 8 -C 36 alkyl, n is an integer from 1 to 8, and y is an integer from 1 to 9, and (2) from 95 to 65 mol percent of phenol alkylated with a propylene tetramer, and (B) the alkaline earth metal salts thereof.
Claim 2
Dependent Claim
94 words
A Mannich base condensation product selected from the group consisting of (A) the Mannich base condensation product prepared by condensing formaldehyde and a polyamine with a sulfur-containing phenolic mixture consisting of (1) from 5 to 35 mol percent of a sulfurized alkylphenol of the formula ##STR4## wherein R is C 8 -C 36 alkyl, n is an integer from 1 to 8, and y is an integer from 1 to 9, and (2) from 95 to 65 mol percent of phenol alkylated with a propylene tetramer, and (B) the alkaline earth metal salts thereof.
Claim 3
Dependent Claim
30 words
The calcium salt of said condensation product of claim 1 prepared from 15 to 25 mol percent sulfurized alkylphenol and 85 to 75 mol percent phenol alkylated with propylene tetramer.
Claim 4
Dependent Claim
30 words
The magnesium salt of said condensation product of claim 1 prepared from 15 to 25 mol percent sulfurized alkylphenol and 85 to 75 mol percent phenol alkylated with propylene tetramer.
Claim 5
Dependent Claim
31 words
A lubricating oil composition comprising an oil of lubricating viscosity and from 0.1 to 50% 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 50% 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 50% by weight of the magnesium salt of claim 3.
Claim 8
Dependent Claim
38 words
A lubricating oil concentrate comprising from 15 to 50% by weight of an oil of lubricating viscosity and from 85 to 50% by weight of the condensation product or an alkaline earth metal salt thereof of claim 1.
Claim 9
Dependent Claim
29 words
A lubricating oil concentration comprising 15 to 50% by weight of an oil of lubricating viscosity and from 85 to 50% by weight of the product of claim 2.
Claim 10
Dependent Claim
121 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 sulfur-containing phenolic mixture consisting of (1) from 5 to 35 mol percent of a sulfurized alkylphenol of the formula ##STR5## wherein R is C 8 -C 36 alkyl, n is an integer from 1 to 8, and y is an integer from 1 to 9, and (2) from 95 to 65 mol percent of phenol alkylated with propylene tetramer, 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 promoter.
Claim 11
Dependent Claim
121 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 sulfur-containing phenolic mixture consisting of (1) from 5 to 35 mol percent of a sulfurized alkylphenol of the formula ##STR5## wherein R is C 8 -C 36 alkyl, n is an integer from 1 to 8, and y is an integer from 1 to 9, and (2) from 95 to 65 mol percent of phenol alkylated with propylene tetramer, 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 promoter.
Claim 12
Dependent Claim
10 words
The product prepared according to the process of claim 8.
Claim 13
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 |