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US4664677A
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Manganese and copper containing compositions
Assignee: Lubrizol Corp
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Filing: 1986-06-20
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Granted: 1987-05-12
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Expires: 2006-06-20
Abstract
Abstract Disclosed are manganese and copper-containing compositions comprising: (A) a manganese containing compound and (B) a copper containing compound, wherein said composition contains from about 0.05 up to about 23 g-atoms of manganese for each g-atom of copper in said composition. Also disclosed are fuel compositions and additive concentrates containing said manganese and copper-containing compositions. Additionally, disclosed is a method for reducing ignition temperature of exhaust particulate from diesel engines which comprises operating said engine using the above-described fuel compositions.
Inventors
- 👤 Casper J. Dorer, Jr.
- 👤 Robert C. Tupa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:08
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/06; C10L1/00; C10L1/10; C10L1/12; C10L1/1233; C10L1/14; C10L1/18; C10L1/188; C10L1/1881; C10L1/24; C10L1/2431; C10L1/2437; C10L1/26; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A method of reducing exhaust particulate build up in a diesel engine exhaust system trap, comprising including within a major amount of diesel fuel a minor amount of a composition comprising a hydrocarbon soluble manganese containing salt of an organic acid and a hydrocarbon soluble copper containing salt of an organic acid wherein the composition contains from about 0.05 to about 23 g-atoms of manganese for each g-atom of copper and the ratio of total metal moles to total moles of organic acid is greater than one so that the composition as a whole is overbased, and supplying the diesel fuel containing the composition to a diesel engine which engine includes an exhaust system and a particulate trap in the engine's exhaust system.
Claim 2
Independent Claim
123 words
A method of reducing exhaust particulate build up in a diesel engine exhaust system trap, comprising including within a major amount of diesel fuel a minor amount of a composition comprising a hydrocarbon soluble manganese containing salt of an organic acid and a hydrocarbon soluble copper containing salt of an organic acid wherein the composition contains from about 0.05 to about 23 g-atoms of manganese for each g-atom of copper and the ratio of total metal moles to total moles of organic acid is greater than one so that the composition as a whole is overbased, and supplying the diesel fuel containing the composition to a diesel engine which engine includes an exhaust system and a particulate trap in the engine's exhaust system.
Claim 3
Dependent Claim
34 words
The method of reducing exhaust particulate build up as claimed in claim 1 wherein the organic acid is selected from the group consisting of a carboxylic acid, phosphorus acid, sulfonic acid and mixtures thereof.
Claim 4
Dependent Claim
34 words
The method of reducing exhaust particulate build up as claimed in claim 1 wherein the composition contains from about 2 to about 23 g-atoms of manganese for each g-atom of copper in the composition.
Claim 5
Dependent Claim
37 words
The method of reducing exhaust particulate build up as claimed in claim 1 wherein the manganese containing salt and the copper containing salt are each overbased salts of a sulfonic acid containing 1 to 30 carbon atoms.
Claim 6
Dependent Claim
48 words
The method of reducing exhaust particulate build up as claimed in claim 1 wherein the manganese containing salt and the copper containing salt are each overbased salts of dicarboxylic acids made by alkylating maleic anhydride or its derivatives with a poly(isobutene) containing between 30 and 400 carbon atoms.
Claim 7
Dependent Claim
58 words
The method of reducing exhaust particulate build up as claimed in claim 5 wherein the composition is included in the diesel fuel in an amount so as to provide a combined manganese and copper content in the range of about 5 to 350 ppm by weight based on the total combined weight of the diesel fuel and composition.
Claim 8
Dependent Claim
58 words
The method of reducing exhaust particulate build up as claimed in claim 1 wherein the organic acid is a mixture of fatty acids containing about 12 to about 30 carbon atoms with the mixture containing from about 5% (mole) to about 30% (mole) straight chain acids and from about 70% (mole) to about 95% (mole) branched chain acids.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |