GB2117787A - A gearbox lubricant composition based on a polyoxyalkylene fluid - Google Patents
A gearbox lubricant composition based on a polyoxyalkylene fluid Download PDFInfo
- Publication number
- GB2117787A GB2117787A GB08209420A GB8209420A GB2117787A GB 2117787 A GB2117787 A GB 2117787A GB 08209420 A GB08209420 A GB 08209420A GB 8209420 A GB8209420 A GB 8209420A GB 2117787 A GB2117787 A GB 2117787A
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- United Kingdom
- Prior art keywords
- composition
- additive
- additives
- fluid
- composition according
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- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- 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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M107/34—Polyoxyalkylenes
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- 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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M133/12—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
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- 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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
- C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
- C10M135/16—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiourea type, i.e. containing the group
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- 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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/32—Heterocyclic sulfur, selenium or tellurium compounds
- C10M135/36—Heterocyclic sulfur, selenium or tellurium compounds the ring containing sulfur and carbon with nitrogen or oxygen
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
- C10M2209/1045—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only used as base material
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
- C10M2209/1055—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only used as base material
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/106—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only
- C10M2209/1065—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only used as base material
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
- C10M2209/1075—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106 used as base material
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
- C10M2209/1085—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified used as base material
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
- C10M2209/1095—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified used as base material
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- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/044—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms having cycloaliphatic groups
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- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/066—Arylene diamines
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/067—Polyaryl amine alkanes
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/068—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings having amino groups bound to polycyclic aromatic ring systems, i.e. systems with three or more condensed rings
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- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/064—Thiourea type compounds
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- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
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- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
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- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/108—Phenothiazine
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/02—Unspecified siloxanes; Silicones
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
- C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
- C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
- C10N2040/046—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for traction drives
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Lubricants (AREA)
Abstract
A lubricant composition comprising as base lubricating oil a polyoxyalkylene fluid and as additive minor proportions of 1) a thiodiarylamine; 2) an alkylated diarylamine, and 3) an N-acyl sarcosine, is used in a gearbox. r
Description
SPECIFICATION
A lubricant composition based on a polyoxyalkylene fluid and a gearbox containing this composition
This invention relates to a lubricant composition comprising as base oil a polyoxyalkylene fluid and to a gearbox containing this composition.
A lubricant for a gearbox must be capable of functioning satisfactorily under the most severe conditions to be encountered during operation of the gearbox. It should therefor offer good ferrous corrosion protection in the presence of salt water, sluidge4ree operation at temperatures in excess of 120 C, low foaming tendency and low friction losses.
It has been found that these requirements are fulfilled by using a special combination of additives in the polyoxyalkylene base fluid.
According to the invention a lubricant composition meeting the above requirements comprises as base lubricating oil a polyoxyalkylene fluid and as additives minor proportions of 1) athiodiarylamine; 2) an alkylated diarylamine, and 3) an N-acyl sarcosine.
The use of a polyoxyalkylene fluid as base oil in gearbox lubricant compositions is already known from
British patent specification 1,294,856. It is stated that these fluids have a superior oxidation stability at high temperatures compared with mineral lubricating oils. Furthermore, these compositions may contain additives (1) as anti-oxidants and additives (3) as anti-rust and friction-reducing additives.
It has now surprisingly been found that replacing part of additive (1) by additive (2) in such compositions results into superior anti-oxidant properties and less sludge or even no sludge at the high temperatures encountered during continuous operation of gearboxes.
Suitable polyoxyalkylene fluids are copolymers or condensation products of an alkylene oxide, in particular ethylene oxide and propylene oxide, such as described in British patent specification 1,294,856, preferably having viscosities of 140-230 mm2/s at380C.
In the present compositions the base fluid preferably is a polypropylene glycol, preferably having a molecular weight of about 2000 and a viscosity of about 160 mm2/s at 380C, since in this fluid additive (3) gives a better ferrous metal corrosion protection than in the copolymers of ethylene oxide and propylene oxide, which are to be preferred according to the above patent specification.
Suitable additives (1) are also described in the above-mentioned patent specification, the preferred ones being phenothiazine and substituted phenothiazines, such as alkylated phenothiazines.
Suitable additives (2) are described in U.S. patent specification 2,687,377, such as dialkylated diarylamines, in particular dialkylated diphenylamines having alkyl groups of 6-30, preferably 8, carbon atoms each.
Additives (3) function as anti-corrosion additives and as friction reducers.
Suitable additives (3) are described in British patent specification 1,294,856. The preferred additive (3) is
N-oleyl sarcosine, which is N-oleylmethylamino acetic acid.
Suitable proportions of additives (1), (2) and (3), each, are 0.01-15%w, e.g. 0.1-10%w, based on the lubricant composition.
Other additives may be used as well, such as thichkeners, e.g. to render the present compositions semi-fluid, extreme pressure additives, other anti-oxidants, friction reducers and anti-corrosion additives, metal deactivators, such as triazoles, e.g. benztriazole, anti-foam additives, such as silicone fluids, metal-free dispersants, and metal salts, such as neutral and basic Ca and/or Mg salicylates.
The present base oils may be mixed with minor proportions of other lubricating oils, such as mineral or synthetic hydrocarbon oils, hydrotreated oils, and ester oils.
The present compositions are particularly suitable for use in worm gearboxes, but can also be used in other gearboxes, such as bevel and hypoid gearboxes, and as crankcase oils, as compressor oils, e.g. of the piston-type, e.g. for compressing air or natural gas, as turbine oils, as refrigerator oils, as metal-working oils and as hydraulic oils.
The following compositions were tested (proportions in %w):
Composition A (according to the invention)
Additive (1): phenothiazine 0.5
Additive (2): dioctyldiphenylamine 3.0
Additive (3): N-olelyl sarcosine 0.4
Polypropylene glycol (molecular weight 2000,
viscosity 22 mm2/s at 1 000C and 146 mm2/s at 380C) 96.1
Additionally containing 0.005%w benztriazole and 0.0002%w silicone fluid.
Composition B (commercial gearbox lubricant, not according to the invention)
Additive (1) of composition A: 2
Additive (3) of composition A: 0.3
Condensation product of propylene oxide
and ethylene oxide, molar ratio 85:15,
viscosity 22 mm2/s at 1000C and 140 mm2/s at380C 97.7
These compositions were tested in an oxidation thermal stability test during 28 days at 135 C, using Cu and Fe catalysts and an air flow rate of 5 I/h.
TABLE
Composition A B
Viscosity mm2/s, 40 C, before the test 161 140
Viscosity mm2/s, 40 C, after the test 160 153
Acidity, mg KOH/g, before the test 0.7 0.5
Acidity, mg KOH/g, after the test 0.55 0.45
Sludge, %w 0 0.03
Cu weight change, mg -3.8 0.2
Fe weight change, mg -0.1 0.2
This Table shows that the present composition does not give rise to sludge and offers a good ferrous corrosion protection.
Claims (8)
1. A lubricant composition comprising as base lubricating oil a polyoxyalkylene fluid and as additives minor proportions of 1) a thiodiarylamine; 2) an alkylated diarylamine, and 3) an N-acyl sarcosine.
2. A composition according to claim 1, wherein the polyoxyalkylene fluid is a polypropylene glycol.
3. A composition according to claim 1 or 2, wherein additive (1) is phenothiazine or a substituted phenothiazine.
4. A composition according to any one of claims 1-3, wherein additive (2) is a dialkylated diphenylamine.
5. A composition according to any one of claims 1-4, wherein additive (3) is N-oleyl sarcosine.
6. A composition according to any one of claims 1-5, wherein additives (1), (2) and (3) each are present in a proportion of 0.01-1 5%w, based on the composition.
7. A composition according to claim 1, substantially as hereinbefore described.
8. A gearbox containing a composition as claimed in any one of claims 1-7.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08209420A GB2117787B (en) | 1982-03-31 | 1982-03-31 | A gearbox lubricant composition based on a polyxyalkylene fluid |
NLAANVRAGE8300983,A NL190195C (en) | 1982-03-31 | 1983-03-18 | LUBRICANT COMPOSITION BASED ON A POLYOXYALKYLENE FLUID AND A GEAR BOX CONTAINING THIS COMPOSITION. |
DE19833311698 DE3311698A1 (en) | 1982-03-31 | 1983-03-30 | LUBRICANT COMPOSITION AND THEIR USE FOR LUBRICATION IN GEARBOXES |
FR8305349A FR2524483B1 (en) | 1982-03-31 | 1983-03-31 | LUBRICANT COMPOSITION BASED ON POLYOXYALCOYLENE FLUID AND GEARBOX CONTAINING THE SAME |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08209420A GB2117787B (en) | 1982-03-31 | 1982-03-31 | A gearbox lubricant composition based on a polyxyalkylene fluid |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2117787A true GB2117787A (en) | 1983-10-19 |
GB2117787B GB2117787B (en) | 1985-03-20 |
Family
ID=10529419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08209420A Expired GB2117787B (en) | 1982-03-31 | 1982-03-31 | A gearbox lubricant composition based on a polyxyalkylene fluid |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE3311698A1 (en) |
FR (1) | FR2524483B1 (en) |
GB (1) | GB2117787B (en) |
NL (1) | NL190195C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2283758A (en) * | 1993-11-11 | 1995-05-17 | Nsk Ltd | Rust preventive lubricating oil |
US7790660B2 (en) | 2004-02-13 | 2010-09-07 | Exxonmobil Research And Engineering Company | High efficiency polyalkylene glycol lubricants for use in worm gears |
EP2281865A1 (en) * | 1999-03-05 | 2011-02-09 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil composition |
WO2012030537A1 (en) * | 2010-08-31 | 2012-03-08 | Dow Global Technologies Llc | Corrosion inhibiting polyalkylene glycol-based lubricant compositions |
WO2013107768A3 (en) * | 2012-01-16 | 2013-09-06 | Hydro Aluminium Deutschland Gmbh | Method for separating a cooling lubricant agent from a bearing lubricant |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687377A (en) * | 1951-12-11 | 1954-08-24 | California Research Corp | Lubricant |
GB1205177A (en) * | 1968-05-22 | 1970-09-16 | Castrol Ltd | Improvements in or relating to lubricating compositions |
GB1294856A (en) * | 1968-11-20 | 1972-11-01 |
-
1982
- 1982-03-31 GB GB08209420A patent/GB2117787B/en not_active Expired
-
1983
- 1983-03-18 NL NLAANVRAGE8300983,A patent/NL190195C/en not_active IP Right Cessation
- 1983-03-30 DE DE19833311698 patent/DE3311698A1/en active Granted
- 1983-03-31 FR FR8305349A patent/FR2524483B1/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2283758A (en) * | 1993-11-11 | 1995-05-17 | Nsk Ltd | Rust preventive lubricating oil |
US5656582A (en) * | 1993-11-11 | 1997-08-12 | Nsk Limited | Rust preventive lubricating oil |
EP2281865A1 (en) * | 1999-03-05 | 2011-02-09 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil composition |
US7790660B2 (en) | 2004-02-13 | 2010-09-07 | Exxonmobil Research And Engineering Company | High efficiency polyalkylene glycol lubricants for use in worm gears |
WO2012030537A1 (en) * | 2010-08-31 | 2012-03-08 | Dow Global Technologies Llc | Corrosion inhibiting polyalkylene glycol-based lubricant compositions |
US9057038B2 (en) | 2010-08-31 | 2015-06-16 | Dow Global Technologies Llc | Corrosion inhibiting polyalkylene glycol-based lubricant compositions |
WO2013107768A3 (en) * | 2012-01-16 | 2013-09-06 | Hydro Aluminium Deutschland Gmbh | Method for separating a cooling lubricant agent from a bearing lubricant |
US10174271B2 (en) | 2012-01-16 | 2019-01-08 | Hydro Aluminium Deutschland Gmbh | Method for separating a cooling lubricant agent from a bearing lubricant |
Also Published As
Publication number | Publication date |
---|---|
FR2524483A1 (en) | 1983-10-07 |
NL190195B (en) | 1993-07-01 |
DE3311698C2 (en) | 1991-11-21 |
FR2524483B1 (en) | 1986-02-21 |
GB2117787B (en) | 1985-03-20 |
NL190195C (en) | 1993-12-01 |
NL8300983A (en) | 1983-10-17 |
DE3311698A1 (en) | 1983-10-13 |
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Legal Events
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PG | Patent granted |