CA2425758A1 - An antioxidant combination for oxidation and deposit control in lubricants containing molybdenum and alkylated phenothiazine - Google Patents

An antioxidant combination for oxidation and deposit control in lubricants containing molybdenum and alkylated phenothiazine Download PDF

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Publication number
CA2425758A1
CA2425758A1 CA002425758A CA2425758A CA2425758A1 CA 2425758 A1 CA2425758 A1 CA 2425758A1 CA 002425758 A CA002425758 A CA 002425758A CA 2425758 A CA2425758 A CA 2425758A CA 2425758 A1 CA2425758 A1 CA 2425758A1
Authority
CA
Canada
Prior art keywords
oxidation
containing molybdenum
deposit control
lubricants containing
alkylated phenothiazine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002425758A
Other languages
French (fr)
Other versions
CA2425758C (en
Inventor
Carl K. Esche, Jr.
Vincent J. Gatto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ethyl Corp
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Ethyl Corp
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Filing date
Publication date
Application filed by Ethyl Corp filed Critical Ethyl Corp
Publication of CA2425758A1 publication Critical patent/CA2425758A1/en
Application granted granted Critical
Publication of CA2425758C publication Critical patent/CA2425758C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential

Abstract

The invention relates to a lubricating oil composition having improved antioxidant properties, and which contains a molybdenum compound and an alkylated phenothiazine. Further, it may also include a secondary diarylamine, preferably an alkylated diphenylamine. This combination of additives provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant, or a transmission lubricant, including low levels and zero levels of phosphorus.
CA002425758A 2002-05-30 2003-04-14 An antioxidant combination for oxidation and deposit control in lubricants containing molybdenum and alkylated phenothiazine Expired - Fee Related CA2425758C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/158,096 2002-05-30
US10/158,096 US6797677B2 (en) 2002-05-30 2002-05-30 Antioxidant combination for oxidation and deposit control in lubricants containing molybdenum and alkylated phenothiazine

Publications (2)

Publication Number Publication Date
CA2425758A1 true CA2425758A1 (en) 2003-11-30
CA2425758C CA2425758C (en) 2005-01-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002425758A Expired - Fee Related CA2425758C (en) 2002-05-30 2003-04-14 An antioxidant combination for oxidation and deposit control in lubricants containing molybdenum and alkylated phenothiazine

Country Status (6)

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US (2) US6797677B2 (en)
EP (1) EP1369469B1 (en)
JP (1) JP4157421B2 (en)
CN (1) CN1290984C (en)
CA (1) CA2425758C (en)
DE (1) DE60300366T2 (en)

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Also Published As

Publication number Publication date
US6797677B2 (en) 2004-09-28
CA2425758C (en) 2005-01-11
US20030224950A1 (en) 2003-12-04
JP4157421B2 (en) 2008-10-01
JP2004002860A (en) 2004-01-08
EP1369469B1 (en) 2005-03-09
DE60300366T2 (en) 2006-04-06
DE60300366D1 (en) 2005-04-14
US20050085398A1 (en) 2005-04-21
EP1369469A1 (en) 2003-12-10
CN1290984C (en) 2006-12-20
CN1461800A (en) 2003-12-17

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