Patent US4049560A successfully refreshed from Google Patents.
US4049560A
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Detergent additives
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1975-06-27
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Granted: 1977-09-20
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Expires: 1995-06-27
Abstract
Abstract Producing an overbased magnesium phenate detergent by carbonating a mixture of a sulphur containing phenol, a smaller amount of a sulphonic acid, sulphonate or sulphate, an alkanol, magnesium oxide or hydroxide and a carboxylic acid, anhydride or salt.
Inventors
- 👤 Alan Michael Dominey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:08
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/24; B; B29; B29C; B29C57/00; B29C57/10; B29C65/00; B29C65/02; B29C65/04; B29C65/18; B29C65/56; B29C65/567; B29C65/568; B29C66/00; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461; B29C66/61; B29C66/612; C10M159/22; C11; C11D; C11D1/00; C11D1/02; C11D1/37; C11D3/00; C11D3/02; C11D3/04; C11D3/044; C11D3/12; C11D3/1213; C11D3/16; C11D3/20; C11D3/2003; C11D3/2068; C11D3/2075; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/028; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2219/00; C10M2219/04; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/06; C10N2030/10; C10N2030/12; C10N2030/52; C10N2060/00; C10N2060/04; C10N2060/10; C10N2070/00; C10N2070/02; C11D1/12; C11D1/14; C11D1/143; C11D1/146; C11D1/22
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
292 words
A process for preparing an overbased magnesium detergent having a total base number of about 200 to 250, which is useful in lubricating oil, said process comprising blowing carbon dioxide into a refluxing reaction mixture until reaction substantially ceases, said reaction mixture comprising: a. 15 to 40 wt. % of a member selected from the group consisting of: sulphurised C 8 -C 60 hydrocarbyl substituted phenol, C 6 -C 60 hydrocarbyl substituted thiophenol, and C 6 -C 60 hydrocarbyl substituted phenol or thiophenol mixed with a sufficient amount of elemental sulfur to sulfurize said phenol or thiophenol; b. 5-15 wt. % of a member selected from the group consisting of: alkaryl sulphonic acid having a molecular weight of about 300 to 700; alkali metal and alkaline earth metal salts of said sulphonic acid, and alkali metal and alkaline earth metal sulfate salts of the reaction product of sulphuric acid with a member selected from the group consisting of: cracked wax of 20 to 30 carbon atoms, C 8 to C 25 olefin, and C 8 to C 25 alcohol; c. 5-15 wt. % of an alcoholic material selected from the group consisting of: ethylene glycol, diethylene glycol, C 1 to C 5 monohydric alkanol, and C 2 to C 6 alkoxy alkanol; d. 2-15 wt. % of active magnesium oxide having a surface area of at least 80 square meters/gm; e. at least 0.1 wt. % of a member selected from the group consisting of: C 1 to C 18 aliphatic or aromatic, saturated or unsaturated, mono or polycarboxylic acid; anhydrides thereof; and ammonium and Group I and Group II metal salts of said C 1 to C 18 carboxylic acids; and f. at least 10 wt. % of a diluent oil.
Claim 2
Dependent Claim
292 words
A process for preparing an overbased magnesium detergent having a total base number of about 200 to 250, which is useful in lubricating oil, said process comprising blowing carbon dioxide into a refluxing reaction mixture until reaction substantially ceases, said reaction mixture comprising: a. 15 to 40 wt. % of a member selected from the group consisting of: sulphurised C 8 -C 60 hydrocarbyl substituted phenol, C 6 -C 60 hydrocarbyl substituted thiophenol, and C 6 -C 60 hydrocarbyl substituted phenol or thiophenol mixed with a sufficient amount of elemental sulfur to sulfurize said phenol or thiophenol; b. 5-15 wt. % of a member selected from the group consisting of: alkaryl sulphonic acid having a molecular weight of about 300 to 700; alkali metal and alkaline earth metal salts of said sulphonic acid, and alkali metal and alkaline earth metal sulfate salts of the reaction product of sulphuric acid with a member selected from the group consisting of: cracked wax of 20 to 30 carbon atoms, C 8 to C 25 olefin, and C 8 to C 25 alcohol; c. 5-15 wt. % of an alcoholic material selected from the group consisting of: ethylene glycol, diethylene glycol, C 1 to C 5 monohydric alkanol, and C 2 to C 6 alkoxy alkanol; d. 2-15 wt. % of active magnesium oxide having a surface area of at least 80 square meters/gm; e. at least 0.1 wt. % of a member selected from the group consisting of: C 1 to C 18 aliphatic or aromatic, saturated or unsaturated, mono or polycarboxylic acid; anhydrides thereof; and ammonium and Group I and Group II metal salts of said C 1 to C 18 carboxylic acids; and f. at least 10 wt. % of a diluent oil.
Claim 3
Dependent Claim
60 words
A process according to claim 1, wherein said reaction mixture comprises 15 to 30 wt. % of component (a); 8 to 12 wt. % of component (c); 2 to 5 wt. % of component (d); and 0.5 to 2.0 wt. % of component (e); and wherein said (c) component consists essentially of said C 1 to C 5 monohydric alkanol.
Claim 4
Dependent Claim
44 words
A process according to claim 2, wherein said reaction mixture comprises 20 to 35 wt. % of component (f); and also includes (g) 10 to 35 wt. % of an aromatic or aliphatic hydrocarbon solvent; and wherein said component (c) consists essentially of methanol.
Claim 5
Dependent Claim
66 words
A process according to claim 1, wherein said component (a) is a sulphurised phenol of the structure ##STR3## where R and R 1 are hydrocarbyl groups, m and n are zero or integers of 1 to 4 provided m and n are not both zero, and x is 1,2,3 or 4; and said component (c) consists essentially of said C 1 to C 5 monohydric alkanol.
Claim 6
Dependent Claim
19 words
A process according to claim 4, wherein said hydrocarbyl substituent is a C 9 to C 15 alkyl group.
Claim 7
Dependent Claim
46 words
A process according to claim 5, wherein said component (c) is methanol; wherein said component (d) is magnesium oxide having a surface area of 100-120 sq. meters/gm; and wherein said component (e) is said ammonium or magnesium salt of C 1 to C 4 monocarboxylic acid.
Claim 8
Dependent Claim
12 words
An overbased magnesium detergent prepared by the process according to claim 2.
Claim 9
Dependent Claim
19 words
A lubricating oil composition containing between 0.01% and 10% by weight of the overbased magnesium detergent of claim 7.
Claim 10
Dependent Claim
163 words
A process for preparing an overbased magnesium detergent, having a total base number of about 200 to 250, which is useful in lubricating oil, said process comprising blowing carbon dioxide into a refluxing reaction mixture until reaction substantially ceases, said reaction mixture comprising: a. 15 to 40 wt. % of sulphurised C 8 -C 20 hydrocarbon substituted phenol; b. 5-15 wt. % of an alkaryl sulphonic acid, having a molecular weight of about 300 to 700; c. 5-15 wt. % of alcoholic material selected from the group consisting of: methanol, ethylene glycol, and C 2 to C 6 alkoxy alkanol; d. 2-15 wt. % of active magnesium oxide having a surface area of at least 80 square meters/gm; e. at least 0.1 wt. % of a member selected from the group consisting of: C 1 to C 4 aliphatic, saturated, monocarboxylic acid; anhydrides thereof; and ammonium and magnesium salts of said acid; and f. at least 10 wt. % of a diluent oil.
Claim 11
Dependent Claim
163 words
A process for preparing an overbased magnesium detergent, having a total base number of about 200 to 250, which is useful in lubricating oil, said process comprising blowing carbon dioxide into a refluxing reaction mixture until reaction substantially ceases, said reaction mixture comprising: a. 15 to 40 wt. % of sulphurised C 8 -C 20 hydrocarbon substituted phenol; b. 5-15 wt. % of an alkaryl sulphonic acid, having a molecular weight of about 300 to 700; c. 5-15 wt. % of alcoholic material selected from the group consisting of: methanol, ethylene glycol, and C 2 to C 6 alkoxy alkanol; d. 2-15 wt. % of active magnesium oxide having a surface area of at least 80 square meters/gm; e. at least 0.1 wt. % of a member selected from the group consisting of: C 1 to C 4 aliphatic, saturated, monocarboxylic acid; anhydrides thereof; and ammonium and magnesium salts of said acid; and f. at least 10 wt. % of a diluent oil.
Claim 12
Dependent Claim
44 words
A process according to claim 9, wherein said reaction mixture comprises 15 to 30 wt. % of component (a); 8 to 12 wt. % of component (c); 2 to 5 wt. % of component (d); and 0.5 to 2.0 wt. % of component (e).
Claim 13
Dependent Claim
35 words
A process according to claim 9, wherein said reaction mixture comprises 20 to 35 wt. % of component (f); and also includes (g) 10 to 35 wt. % of an aromatic or aliphatic hydrocarbon solvent.
Claim 14
Dependent Claim
51 words
A process according to claim 9, wherein said component (a) is a sulphurised phenol of the structure ##STR4## where R and R 1 are hydrocarbyl groups, m and n are zero or integers of 1 to 4 provided m and n are not both zero, and x is 1,2,3 or 4.
Claim 15
Dependent Claim
19 words
A process according to claim 12, wherein said hydrocarbyl substituent is a C 9 to C 15 alkyl group.
Claim 16
Dependent Claim
47 words
A process according to claim 13, wherein said component (c) is said methanol; wherein said component (d) is magnesium oxide having a surface area of 100-120 sq. meters/gm; and wherein said component (e) is said ammonium or magnesium salt of C 1 to C 4 monocarboxylic acid.
Claim 17
Dependent Claim
11 words
An overbased magnesium detergent prepared by the process of claim 9.
Claim 18
Dependent Claim
19 words
A lubricating oil composition containing about 0.1 to 5 wt. % of the overbased magnesium detergent of claim 15.
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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |