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EP0006000A1 - Procédé de préparation d'huiles lubrifiantes contenant des silicones - Google Patents

Procédé de préparation d'huiles lubrifiantes contenant des silicones Download PDF

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Publication number
EP0006000A1
EP0006000A1 EP79300996A EP79300996A EP0006000A1 EP 0006000 A1 EP0006000 A1 EP 0006000A1 EP 79300996 A EP79300996 A EP 79300996A EP 79300996 A EP79300996 A EP 79300996A EP 0006000 A1 EP0006000 A1 EP 0006000A1
Authority
EP
European Patent Office
Prior art keywords
oil
silicone
carrier
solvent
mixture
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
EP79300996A
Other languages
German (de)
English (en)
Other versions
EP0006000B1 (fr
Inventor
Michael Stanley Bingley
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.)
GULLY MICHAEL GUY JOHN VISCOUNT SELBY
GULLY MICHAEL GUY JOHN VIS
Original Assignee
GULLY MICHAEL GUY JOHN VIS
Gully Michael Guy John Viscount Selby
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GULLY MICHAEL GUY JOHN VIS, Gully Michael Guy John Viscount Selby filed Critical GULLY MICHAEL GUY JOHN VIS
Publication of EP0006000A1 publication Critical patent/EP0006000A1/fr
Application granted granted Critical
Publication of EP0006000B1 publication Critical patent/EP0006000B1/fr
Expired legal-status Critical Current

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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
    • C10M155/00—Lubricating compositions characterised by the additive being a macromolecular compound containing atoms of elements not provided for in groups C10M143/00 - C10M153/00
    • C10M155/02—Monomer containing silicon
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/402—Castor oils
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
    • 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
    • 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
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
    • 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
    • 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
    • C10M2229/042—Siloxanes with specific structure containing aromatic substituents
    • 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
    • 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
    • C10M2229/051—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • 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
    • C10N2040/25—Internal-combustion engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/251—Alcohol-fuelled engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • C10N2040/253—Small diesel engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/26—Two-strokes or two-cycle engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/28—Rotary engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Definitions

  • This invention relates to the incorporation of silicone into lubricating oils to make what are referred to as silicone oils.
  • Silicone oils containing silicone are known, and have very much better lubricating properties than oils without silicone. Such silicone oils may be used with great effect as ordinary engine sump oils or as additives for sump oils, but are particularly suitable for use as upper cylinder lubricants and two stroke oils, especially in modern high power to weight ratio two stroke engines which can operate at speeds up to 20,000 rpm. So far, however, there have been problems with the stability of such oils, the silicone tending to separate too readily from the oil and, in some cases, the mixture breaking down under the extreme conditions encountered in the cylinders with the production of substances which are deleterious to the operation of the engine.
  • the stability of the silicone oil will be a paraffinic-mineral oil, and may comprise a mixture of different paraffinic mineral oils.
  • the oil or oils used in the method in accordance with the invention should be substantially free of water (less than 30 parts per million by weight), and should preferably have a sulphur content which is less than 1%, preferably less than 0.3%, by weight. Most standard SAE 30 paraffinic oils which are on sale should be satisfactory from this point of view, particularly in respect of the low water contents.
  • the silicone which is used in the method in - accordance with the invention preferably has a molecular chain length which substantially matches that of the oil, or in other words the viscosities of the silicone and the oil are preferably of the same order as each other, at least over the normal ambient and operating temperature range.
  • phenyl silicones, homologeous series silicones or halogenated silicones may be used, but preferably the silicone used in the invention is a dimethyl silicone. Particularly good results have been achieved with a half and half mixture of a dimethyl silicone fluid having a nominal viscosity of 300 centistokes at 25°C and a dimethyl silicone fluid having a nominal viscosity of 50 centistokes at 25°C.
  • the solvent when used, is preferably perchloroethylene, which may be of an industrial or analytical grade, but other common aliphatic solvents or aromatic solvents may be used, such as carbon tetrachloride, chloroform, ethylene dichloride, trichlorethylene, benzene, toluene, xylene, diethyl ether, di-isopropyl ether, or white spirit.
  • cyclohexane and preferably the carrier oil comprises at least a portion which is the same as the base oil.
  • the carrier oil is preferably a mixture of paraffinic technical white oil and a paraffinic mineral oil which is identical to the base oil, preferably in the ratio of 4:1.
  • the heating of the components in the absence of oxygen is important to prevent oxidation of the silicone.
  • the preferred. method at least when the boiling point of the solvent is below 160°C (as is the case with the preferred solvent perchloroethylene) is not to add the silicone until the carrier oil and the solvent have been mixed and raised to the boiling point of the solvent in a suitable vessel.
  • the silicone is then injected directly into the mixture in the vessel, and boiling of the mixture is maintained for a short while before sealing the vessel and allowing the contents to cool slowly.
  • the silicone-rich carrier is preferably added to and mixed with the base oil at a temperature of 60°C, this step and the subsequent cooling of the final mixture taking place in the absence of oxygen for the same reason as mentioned above.
  • the stabilisation of the silicone suspension in the method in accordance with the invention is carried out using an electromagnetic energy field rather than the relatively complicated heat treatment described above.
  • a magnetic field has been found to be particularly equivalent to the silicone-rich carriers hereinbefore described.
  • the additive would comprise, by volume, not more than 20% silicone, not more than 40% oil, and solvent as the remainder, it being the intention for such an additive to be added to sump oil in an amount of from 1 to 5% by volume of the sump oil.
  • the manufacture of the additive would be exactly the same as for the silicone-rich carriers described earlier.
  • the oil will preferably be a mixture of paraffinic technical white oil and an SAE 30 paraffinic mineral oil, preferably in the ratio of 4 : 1.
  • the silicone and solvent contents will be less for a diesel engine sump oil additive than for a petrol engine sump oil additive.
  • a dimethyl silicone mixture was made consisting of 50% dimethyl silicone fluid obtainable from ICI as Flll/50 (having a nominal viscosity of 50 centistokes at 25 0 C), and 50% dimethyl silicone fluid obtainable from ICI as Flll/300 (having a nominal viscosity of 300 centistokes at 25°C).
  • a carrier oil mixture was made consisting of, by volume, 80% paraffinic technical white oil, and 20% of a standard SAE 30 paraffinic oil. This oil was obtained as SAE 30 Castrol 110A, and had a water content less than 30 parts per million by weight, and a sulphur content less than 0.3% by weight. oil containing, by volume, 0.2% silicone, 3.5% perchloroethylene, 1.04% technical white oil, and the SAE 30 paraffinic oil as the remainder.
  • Example I the first stage was to make a silicone-rich carrier.
  • This carrier had exactly the same composition as that in Example I, and again the carrier oil mixture and the perchloroethylene were mixed together before the dimethyl silicone mixture was added.
  • the mixture of the carrier oil and the perchloroethylene was placed, at room temperature, in a test tube within a coil comprising between 5,000 and 6,000 turns of SWG 34 copper wire, and the coil energised by a 28 volt d/c supply to generate an electromagnetic field within the coil.
  • the dimethyl silicone mixture was then added to and mixed with the contents of the test tube in the presence of this relatively weak magnetic field and the mixture subjected to the field for about 5 minutes.
  • silicone-rich carrier so formed was added to and vigorously mixed with a quantity of a base lubricating oil in the form of a standard SAE 30 paraffinic oil (obtained as SAE 30 Castrol 110A), the silicone-rich carrier being added in an amount which was 5% by volume of the total mixture.
  • a base lubricating oil in the form of a standard SAE 30 paraffinic oil (obtained as SAE 30 Castrol 110A)
  • SAE 30 Castrol 110A obtained as SAE 30 Castrol 110A
  • the silicone-rich carrier was added to the base oil at room temperature and the mixture was subjected to the same magnetic field which was used in the formation of the silicone-rich carrier.
  • the mixture was subjected to the magnetic field for about 5 minutes, and the result was a high quality silicone oil having the same composition as that proditced in Example I. have been carried out using the oils made in Examples I to III, and these are described and -reported as follows.
  • Example I Two motor cars whose petrol consumption had been measured over a long period of time using the recommended standard petrol and oil were then run using the silicone oil produced in Example I as an upper cylinder lubricant (15 to 30 ccs per gallon of petrol) and using the silicone-rich carrier of Example I as a sump and gear box oil additive (5ccs per pint), and the average petrol consumption measured over a period of about seven months.
  • a VW Golf the average petrol consumption before
  • the 21cc Ohisson and Rice two stroke engine was run powering the Champ generator, and the engine surface temperature was measured at different power output levels using a calibrated thermistor bolted to the engine cylinder head.
  • the test was carried out a number of times using different two stroke oils in the petrol used to fuel the engine (2% oil in the mixture), and the results are shown in the accompanying graphs which plot engine surface temperature (degrees centigrade) against generator power output (current in amps). It was found that the engine would often run at during its manufacture.
  • the curve x-x represents a fuel containing 2% of a commercially available synthetic two stroke oil different from those used in the tests of Figure 1;

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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)
  • Lubricants (AREA)
EP79300996A 1978-05-31 1979-05-30 Procédé de préparation d'huiles lubrifiantes contenant des silicones Expired EP0006000B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB2594378 1978-05-31
GB2594378 1978-05-31
GB7833877 1978-08-18
GB3387778 1978-08-18

Publications (2)

Publication Number Publication Date
EP0006000A1 true EP0006000A1 (fr) 1979-12-12
EP0006000B1 EP0006000B1 (fr) 1981-09-09

Family

ID=26257964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79300996A Expired EP0006000B1 (fr) 1978-05-31 1979-05-30 Procédé de préparation d'huiles lubrifiantes contenant des silicones

Country Status (2)

Country Link
EP (1) EP0006000B1 (fr)
DE (1) DE2960776D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000481A1 (fr) * 1996-07-01 1998-01-08 SELBY, Mary, Theresa Composition d'additif
EP3579040A1 (fr) 2017-02-23 2019-12-11 Corephotonics Ltd. Conceptions de lentille de caméra pliée

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB600693A (en) * 1945-01-22 1948-04-15 Shell Dev Foam reducing compositions and methods of producing same
US3024194A (en) * 1958-03-19 1962-03-06 Gulf Research Development Co Method of inhibiting foam in a lubricating oil composition
US3275559A (en) * 1963-01-14 1966-09-27 Texaco Inc Hydraulic fluid
GB1208022A (en) * 1966-09-29 1970-10-07 Monsanto Co Functional fluid compositions

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB600693A (en) * 1945-01-22 1948-04-15 Shell Dev Foam reducing compositions and methods of producing same
US3024194A (en) * 1958-03-19 1962-03-06 Gulf Research Development Co Method of inhibiting foam in a lubricating oil composition
US3275559A (en) * 1963-01-14 1966-09-27 Texaco Inc Hydraulic fluid
GB1208022A (en) * 1966-09-29 1970-10-07 Monsanto Co Functional fluid compositions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000481A1 (fr) * 1996-07-01 1998-01-08 SELBY, Mary, Theresa Composition d'additif
US6074444A (en) * 1996-07-01 2000-06-13 Bingley; Michael Stanley Additive composition
EP3579040A1 (fr) 2017-02-23 2019-12-11 Corephotonics Ltd. Conceptions de lentille de caméra pliée

Also Published As

Publication number Publication date
EP0006000B1 (fr) 1981-09-09
DE2960776D1 (en) 1981-11-26

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