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Применить Всего найдено 4. Отображено 4.
19-09-2013 дата публикации

ENGINE LUBRICANT COMPOSITION

Номер: US20130244917A1
Автор: Guerin Julien, Khelidj Nadjet, Obrecht Nicholas
Принадлежит:

Lubricant compositions include: (a) one or more polyalkylene glycol base oils obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms, include at least one butylene oxide and (b) at least one detergent chosen from salicylates or phenates. The present disclosure also relates to: 1) use of a lubricant composition as engine oil, preferably as oil for the engines of petrol or diesel motor vehicles; 2) use of a group of additives for an engine lubricant comprising polyalkylene glycol bases obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms; and 3) use of at least one additive chosen from salicylates, phenates, dithiocarbamates, amine-based or phenol-based antioxidants, preferably from salicylates or phenates, for reducing the Noack volatility of the base oils of polyalkylene glycol type, obtained from alkylene oxides comprising from 3 to 8 carbon atoms. 1. A lubricant composition comprising:(a) at least one polyalkylene glycol base oil, obtained by polymerization or copolymerization of alkylene oxides comprising 3 to 8 carbon atoms, including at least one butylene oxide; and(b) at least one detergent selected from salicylates or phenates.2. The lubricant composition according to claim 1 , wherein the polyalkylene glycol base oil is a copolymer of butylene oxide and of propylene oxide.3. The lubricant composition according to claim 1 , wherein the polyalkylene base oil (a) is obtained by reacting at least one alcohol comprising from 8 to 20 carbon atoms and a mixture of butylene oxide and propylene oxide claim 1 , the mixture having a mass ratio of butylene oxide over propylene oxide comprised between 3:1 and 1:3.4. The composition according to claim 1 , wherein the polyalkylene glycol base oil (a) is such that the alcohol with which it may be obtained includes from 8 to 12 carbon atoms.5. The composition according to claim 1 , wherein the polyalkylene glycol base oil (a) is ...

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Номер записи: 1
23-02-2017 дата публикации

USE OF A LUBRICANT COMPOSITION FOR REDUCING KNOCKING

Номер: US20170051226A1
Автор: FAURE Steve, Obrecht Nicholas
Принадлежит: TOTAL MARKETING SERVICES

The present disclosure relates to a lubricant composition including at least one base oil and at least one organic compound. The lubricant composition thus makes it possible to reduce, or even to eliminate knock in a vehicle engine, preferably a motor vehicle engine. 2. The method according to in which R1 represents:a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl group, comprising from 1 to 10 carbon atoms;an —OR7 group in which R7 represents a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl group, comprising from 1 to 10 carbon atoms; andan —NR8R9 group in which R8 and R9, identical or different, represent independently a hydrogen atom or a saturated or unsaturated, substituted or unsubstituted alkyl group, comprising from 1 to 3 carbon atoms3. The method according to in which R5 represents a hydrogen atom.4. The method according to in which R6 represents a hydrogen atom.5. The method according to in which R1 represents:a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms;an —OR7 group in which R7 represents a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; and R8 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms;', 'R9 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms., 'an —NR8R9 group in which6. The method according to in which R2 represents:a hydrogen atom;a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; R11 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms; and', 'R12 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms., 'an —NR11R12 group in which7. The method according to in which R3 represents:a hydrogen atom;a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; R14 represents a hydrogen atom or a saturated alkyl ...

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Номер записи: 2
30-04-2015 дата публикации

ENGINE LUBRICANT COMPOSITION

Номер: US20150119303A1
Автор: Guerin Julien, Khelidj Nadjet, Obrecht Nicholas
Принадлежит:

The present disclosure concerns engine lubricant compositions including at least one base oil, at least one viscosity index improver polymer and at least one polyalkylene glycol, obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms, including at least one butylene oxide, the quantity of polyalkylene glycol being from 1 to 28% by mass with respect to the total mass of lubricant composition. Using at least one polyalkylene glycol, obtained by polymerization or copolymerization of alkylene oxides including from 3 to 8 carbon atoms, further including at least one butylene oxide in a base oil improves engine cleanliness while not increasing, or indeed while decreasing, the consumption of petrol or diesel fuels by the engine. 2. The lubricant composition according to in which the polyalkylene glycol has a molar mass measured according to the standard ASTM D4274 ranging from 300 to 1000 grams per mole.3. The lubricant composition according to in which the polyalkylene glycol has a kinematic viscosity at 100° C. measured according to the standard ASTM D445 comprised between 1 and 12 cSt.4. The lubricant composition according to comprising from 3 to 15% by mass of polyalkylene glycol with respect to the total mass of the lubricant composition.5. The lubricant composition according to in which the viscosity index improver polymer is selected from the group consisting of the olefin copolymers claim 1 , the ethylene/alpha-olefin copolymers claim 1 , styrene/olefin copolymers claim 1 , the polyacrylates alone or in a mixture.6. The lubricant composition according to comprising from 1 to 15% by mass of polymer with respect to the total mass of the lubricant composition.7. The lubricant composition according to further comprising at least one additive selected from the group consisting of the anti-wear additives claim 1 , detergents claim 1 , dispersants claim 1 , anti-oxidants claim 1 , friction modifiers alone or in a mixture.911 ...

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Номер записи: 3
01-05-2018 дата публикации

Engine lubricant composition

Номер: US09957462B2
Автор: Julien Guerin, Nadjet Khelidj, Nicholas Obrecht
Принадлежит: Dow Global Technologies LLC, Total Marketing Services SA

The present disclosure concerns engine lubricant compositions including at least one base oil, at least one viscosity index improver polymer and at least one polyalkylene glycol, obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms, including at least one butylene oxide, the quantity of polyalkylene glycol being from 1 to 28% by mass with respect to the total mass of lubricant composition. Using at least one polyalkylene glycol, obtained by polymerization or copolymerization of alkylene oxides including from 3 to 8 carbon atoms, further including at least one butylene oxide in a base oil improves engine cleanliness while not increasing, or indeed while decreasing, the consumption of petrol or diesel fuels by the engine.

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Номер записи: 4