EP2504416A1 - Concentré d'additifs - Google Patents

Concentré d'additifs

Info

Publication number
EP2504416A1
EP2504416A1 EP10784756A EP10784756A EP2504416A1 EP 2504416 A1 EP2504416 A1 EP 2504416A1 EP 10784756 A EP10784756 A EP 10784756A EP 10784756 A EP10784756 A EP 10784756A EP 2504416 A1 EP2504416 A1 EP 2504416A1
Authority
EP
European Patent Office
Prior art keywords
additive concentrate
base oil
astm
fischer
additive
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.)
Withdrawn
Application number
EP10784756A
Other languages
German (de)
English (en)
Inventor
Christopher Andrew Paddon
Wei Song
Carol Perkins Whitmire
David John Wedlock
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to EP10784756A priority Critical patent/EP2504416A1/fr
Publication of EP2504416A1 publication Critical patent/EP2504416A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/02—Specified values of viscosity or viscosity index
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/17—Fisher Tropsch reaction products
    • C10M2205/173—Fisher Tropsch reaction products used as base material
    • 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
    • C10N2020/02—Viscosity; Viscosity index
    • 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
    • C10N2020/065—Saturated Compounds
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • 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

Definitions

  • the present invention relates to an additive
  • Lubricant compositions in particular for automotive crankcase or transmissions, are employed to reduce wear at metal-to-metal contact between moving parts, as well as to remove heat.
  • the lubricant compositions require the presence of polymeric viscosity modifier additives to obtain the desired viscometric properties over a broad range of shear and/or
  • additives are usually highly viscous liquids or solids at room temperature. In order to be able to achieve homogenous distribution, avoid handling of solids and to be able to administer the amounts of additives added into lubricant compositions and thus ensure consistent product quality, these additives are usually added as an additive concentrate.
  • Example 6 of US 2005/0133407 discloses a OW-20 engine oil (i.e. a fully formulated lubricating composition, not an additive concentrate) containing 86.30 wt . % of a Fischer-Tropsch derived base oil, 0.3 wt . % of a pour point depressant and 13.4 wt . % of a PCMO DI additive package.
  • OW-20 engine oil i.e. a fully formulated lubricating composition, not an additive concentrate
  • the OW-20 formulation of Example 6 does not contain a viscosity index improver.
  • Example 3 of WO 02/064710 discloses a 0W30 engine oil (i.e. a fully formulated lubricating composition, not an additive concentrate), containing 76.4 wt . % of a Fischer- Tropsch derived product, 14.6 wt . % of a detergent inhibitor additive package, 0.25 wt . % of a corrosion inhibitor and 10.56 wt . % of a viscosity modifier.
  • Example 2 of EP 1 688 476 Al discloses a lubricating composition (i.e. not an additive concentrate) containing 18 wt . % of an additive package (see Example 1 of EP 1 688
  • Emery 2925 has an aniline point (according to ASTM D 611) of 0°C and is therefore seen as a solvency booster as meant according to the present invention.
  • Example 7 of US 2009/0088352 discloses a lubricating composition (i.e. not an additive concentrate) prepared to meet the John Deere J20D specification, containing 86.81 wt . % Fischer-Tropsch derived base oil, 8.10 wt . % of an additive package, 4.94 wt . % of a viscosity modifier, 0.15 wt . % of a pour point depressant and 0.07 wt . % of a foam inhibitor.
  • a lubricating composition i.e. not an additive concentrate prepared to meet the John Deere J20D specification, containing 86.81 wt . % Fischer-Tropsch derived base oil, 8.10 wt . % of an additive package, 4.94 wt . % of a viscosity modifier, 0.15 wt . % of a pour point depressant and 0.07 wt . % of a foam inhibitor.
  • Fischer-Tropsch derived base oils are usually not suitable as base oils to prepare additive concentrates for additives such as polymeric viscosity modifiers due to the low solvency of these Fischer-Tropsch derived base oils. Therefore,
  • WO 2009/074572 suggests to include an alkylated aromatic compound (e.g. "KR 008", commercially available from King Industries) as a solvency booster in the additive concentrate.
  • the solvency booster is preferably present in an amount of from
  • lubricants such as hydraulic oils
  • an additive concentrate comprising:
  • Fischer-Tropsch derived base oils are known in the art.
  • Fischer-Tropsch derived means that a material is, or derives from, a synthesis product of a Fischer-Tropsch condensation process.
  • non-Fischer-Tropsch derived may be interpreted accordingly.
  • a Fischer-Tropsch derived base oil will therefore be a hydrocarbon stream of which a substantial portion, except for added hydrogen, is derived directly or indirectly from a Fischer-Tropsch condensation process.
  • a Fischer-Tropsch derived base oil may also be referred to as a GTL ( Gas-To-Liquids ) base oil.
  • GTL Gas-To-Liquids
  • base oil may refer to a mixture
  • the aromatics content of a Fischer-Tropsch derived base oil will typically be below 1 wt.%, preferably below 0.5 wt . % and more preferably below 0.1 wt.%.
  • the base oil has a total paraffin content of at least 80 wt.%, preferably at least 85, more preferably at least 90, yet more preferably at least 95 and most preferably at least 99 wt.%. It suitably has a saturates content (as measured by IP-368) of greater than 98 wt.%.
  • the saturates content of the base oil is greater than
  • the base oil preferably also has a content of naphthenic compounds of from 0 to less than 20 wt.%, more preferably of from 0.5 to 10 wt.%.
  • the Fischer-Tropsch derived base oil has a kinematic viscosity at 100°C (as measured by ASTM D 7042) of from 1 to 25 mm ⁇ /s (cSt), preferably above 2.5 more preferably above 3.0 mm ⁇ /s.
  • the Fischer- Tropsch derived base oil has a kinematic viscosity at 100°C of below 5.0 mm 2 /s, preferably below 4.5 mm 2 /s, more preferably below 4.2 mm 2 /s.
  • the Fischer-Tropsch derived base oil typically has a kinematic viscosity at 40°C (as measured by ASTM D 7042) of from 10 to 100 mm 2 /s (cSt), preferably from 15 to 50 mm ⁇ /s.
  • the Fischer-Tropsch derived base oil preferably has a pour point (as measured according to ASTM D 5950) of below -30°C, more preferably below -40°C, and most preferably below -45°C.
  • the flash point (as measured by ASTM D92) of the Fischer-Tropsch derived base oil is preferably greater than 120°C, more preferably even greater than 140 °C.
  • the Fischer-Tropsch derived base oil preferably has a viscosity index (according to ASTM D 2270) in the range of from 100 to 200.
  • the Fischer-Tropsch derived base oil has a viscosity index of at least 125, preferably 130. Also it is preferred that the viscosity index is below 180, preferably below 150.
  • Fischer-Tropsch derived base oil contains a blend of two or more Fischer-Tropsch derived base oils
  • the above values apply to the blend of the two or more Fischer-Tropsch derived base oils.
  • the additive concentrate may comprise one or more non-reacted Fischer-Tropsch derived base oil
  • Fischer-Tropsch derived base oils such as mineral derived base oils and so-called synthetic base oils (such as PAOs) including Group I-V base oils according to the definitions of American Petroleum Institute (API).
  • API American Petroleum Institute
  • the additive concentrate according to the present invention comprises at least 80 wt . % of the Fischer-Tropsch derived base oil, preferably at least 90 wt.%, based on the total weight of the additive concentrate. Also it is preferred that the additive concentrate comprises less than 10.0 wt.% of a non-FT- derived base oil, preferably less than 5.0 wt.%, more preferably less than 2.0 wt.%, even more preferably less than 1.0 wt.%, based on the total weight of the additive concentrate. Most preferably the additive concentrate comprises no non-Fischer-Tropsch derived base oils at all . There are no particular limitations regarding the viscosity modifier as used in the additive concentrate according to the present invention. As a person skilled in the art is familiar with the term "viscosity modifier as used in the additive concentrate according to the present invention. As a person skilled in the art is familiar with the term "viscosity modifier as used in the additive concentrate according to the present invention. As a person skilled in the art is familiar with the
  • Viscosity modifiers also known as VI improvers
  • viscosity index improvers or viscosity improvers provide lubricants with high- and low-temperature operability; these additives impart acceptable viscosity at low temperatures and are preferably shear stable.
  • a viscosity modifier improves (e.g. by at least 5 units) the viscosity index (e.g. as determined by ASTM D 2270) by its incorporation in the additive concentrate (and/or a fully formulated lubricant composition in which the viscosity modifier is incorporated) .
  • the additive concentrate comprises at least 3.0 wt . % of a viscosity modifier, based on the total weight of the additive concentrate.
  • the additive concentrate comprises at least 5.0 wt . % such as from 5.0 to 10.0 wt.%, preferably from 6.0 to 10.0 wt . % of the viscosity modifier, based on the total weight of the additive concentrate .
  • Non-limiting examples of viscosity modifiers are linear or star-shaped olefin copolymers,
  • polyisobutylenes polymethacrylates , polymers of a diene such as isoprene or butadiene, or a copolymer of such a diene with optionally substituted styrene.
  • copolymers are preferably hydrogenated to such an extent as to saturate most of the olefinic unsaturation .
  • a number of other types of viscosity modifier are known in the art, and many of these are described in Proceedings of Conference "Viscosity and flow properties of
  • dispersancy e.g. dispersant viscosity index improvers based on block copolymers, or polymethacrylates
  • antioxidant functionality as well as viscosity
  • depressants mixed in to give handleable products in cold climates .
  • the viscosity modifier is selected from the group consisting of olefin copolymers, polyisoprene polymers and diene-styrene copolymers.
  • Olefin copolymers are commercially available from Chevron Oronite Company LLC under the trade designation "PARATONE®" (such as
  • HiTEC® such as “HiTEC® 5850B”; and from The Lubrizol
  • Polyisoprene polymers are commercially available from Infineum International Limited, e.g. under the trade designation "SV200"; diene-styrene copolymers are commercially available from Infineum International
  • the additive concentrate according to the present invention comprises less than 5.0 wt . % of a solvency booster, based on the total weight of the additive concentrate.
  • the additive concentrate comprises less than 2.0 wt.%, preferably less than 1.0 wt.%, more preferably less than 0.5 wt.%, of the solvency booster, based on the total weight of the additive concentrate. It is even more preferred that the additive concentrate contains no solvency booster at all.
  • the solvency booster is a compound having an aniline point (according to ASTM D 611) of less than 100°C.
  • the solvency booster is an alkylated aromatic compound.
  • Alkylated aromatic compounds include alkylated benzenes, alkylated anthracenes, alkylated phenanthrenes , alkylated biphenyls, and alkylated naphthalenes or any mixtures thereof.
  • alkylated naphthalenes reference is made to WO 2009/074572.
  • the additive concentrate may further contain a pour point depressant to improve pumpability.
  • the pour point depressant preferably is present in a range of from 0.5 to 3 wt.%, more preferably from 1 to 2 wt.%, and most preferably from 1.1. to 1.4 wt.%.
  • the additive concentrate preferably has - when normalized at a concentration of viscosity modifier of 1.0 wt.% - a dynamic viscosity at -30°C (according to ASTM D 5293) of below 3000 cP and a kinematic viscosity at 100°C (according to ASTM D 7042) of at least 5.5 cSt .
  • the dynamic viscosity at -30°C is below
  • concentrates containing different amounts of viscosity modifier can be normalized to a concentration of 1.0 wt.% by diluting the concentrate with the appropriate amount of the same base oil (or base oil blend) used to make the additive concentrate. Further it is preferred that the additive concentrate comprises from 5 to 500 ppm of an anti-oxidant,
  • a phenolic and an aminic antioxidant preferably selected from a phenolic and an aminic antioxidant, or a mixture thereof.
  • the present invention provides a lubricant composition
  • a lubricant composition comprising a base oil, one or more additives other than a viscosity modifier and the additive concentrate according to the present invention.
  • This base oil may be a Fischer- Tropsch derived base oil, a non-Fischer-Tropsch derived base oil or a mixture thereof.
  • the one or more additives other than a viscosity modifier may be selected from a broad range of additives such as anti-oxidants , anti-wear additives, dispersants, detergents, over-based detergents, extreme pressure additives, friction modifiers, pour point depressants, metal passivators, corrosion inhibitors, demulsifiers , anti-foam agents, seal compatibility agents and additive diluent base oils, etc.
  • additives such as anti-oxidants , anti-wear additives, dispersants, detergents, over-based detergents, extreme pressure additives, friction modifiers, pour point depressants, metal passivators, corrosion inhibitors, demulsifiers , anti-foam agents, seal compatibility agents and additive diluent base oils, etc.
  • additives such as anti-oxidants , anti-wear additives, dispersants, detergents, over-based detergents, extreme pressure additives, friction modifiers, pour point depressants, metal passivators, corrosion inhibitors, demulsifiers ,
  • Table 1 indicates the properties for the base oils used in the additive concentrates.
  • Tables 2-5 indicate the composition and properties of the formulated additive concentrates that were tested; the amounts of the components are given in wt.%, based on the total weight of the additive concentrate.
  • Table 6 exemplifies the storage stability properties of an additive concentrate according to the present invention.
  • Table 7 exemplifies a fully formulated lubricating compositions (i.e. a SAE 5W-30 engine oil), comprising the additive concentrate according to the present invention.
  • the viscosities and Viscosity Index as measured for the additive concentrates were all measured at a normalized Viscosity Modifier concentration of 1.0 wt.% by dilution with the same base oil used to blend the additive concentrate (as the neat concentrates were too thick and therefore outside the testing range of the indicated test methods) .
  • All tested additive concentrates contained a combination of a base oil and a viscosity modifier, and optionally an anti-oxidant .
  • Base oil 1 was a Fischer-Tropsch derived base oil (“GTL 4") having a kinematic viscosity at 100°C (ASTM D 7042) of approx. 4 cSt (mm 2 /s) .
  • This GTL 4 base oil may be conveniently manufactured by the process described in e.g. WO-A-02/070631, the teaching of which is hereby incorporated by reference.
  • Base oil 2 was a commercially available Group I base oil having a kinematic viscosity at 100°C (ASTM D 7042) of approx. 4 cSt .
  • Base oil 2 is commercially available from ExxonMobil Corporation under the trade designation "Americas SN 115".
  • Base oil 3 was a commercially available Group II base oil having a kinematic viscosity at 100°C (ASTM D 7042) of approx. 4.7 cSt .
  • Base oil 3 is commercially available from Motiva Enterprises LLC under the trade designation "Star 5+”.
  • Base oil 4" was a commercially available Group II base oil having a kinematic viscosity at 100°C (ASTM D
  • Base oil 4 is commercially available from Motiva Enterprises LLC under the trade designation "Star 6".
  • VMV was a commercially available olefin copolymer viscosity modifier available from Chevron Oronite Company
  • VM2 was a commercially available olefin copolymer viscosity modifier available from Afton Chemical
  • VM3 was a commercially available olefin copolymer viscosity modifier available from The Lubrizol
  • VM4 was a commercially available polyisoprene polymer viscosity modifier available from Infineum
  • VM5 was a commercially available diene-styrene copolymer viscosity modifier available from Infineum International Limited under the trade designation "SV 260”.
  • Anti-oxidant was a commercially available aminic anti-oxidant available from Ciba Corporation (Houston,
  • Example 1-8 and Comparative Examples 1-8 were obtained by mixing the base oils with the viscosity modifier using a Silverson high shear mixer and following (conventional) blending procedures
  • the additive package contained a pour point depressant and other typical additives for use in a SAE 5W-30 engine oil.
  • the present invention now surprisingly provides the possibility to prepare additive concentrates containing a viscosity modifier using Fischer-Tropsch derived base oils, but without significant amounts of solvency boosters or even without the use of solvency boosters at all. Also, it can be seen that the additive concentrates according to the present invention show, when compared with conventional additive concentrates using mineral derived Group I (i.e. non-Fischer-Tropsch derived) base oils, significantly better low temperature properties, which is highly desirable for formulating multi-grade lubricants.
  • mineral derived Group I i.e. non-Fischer-Tropsch derived
  • the additive concentrates according to the present invention have excellent storage stability at various temperatures for extended periods of time.
  • the additive concentrates according to the present invention are suitable for use in a wide range of lubricants, such as in e.g. engine oils and transmission fluids and other lubricants for which a viscosity modifier is desired.
  • lubricants such as in e.g. engine oils and transmission fluids and other lubricants for which a viscosity modifier is desired.
  • SAE 5W-30 formulations can be formulated when using the additive concentrates according to the present invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

Cette invention concerne un concentré d'additifs comprenant : - au moins 90% en poids d'une huile de base dérivée par le procédé Fischer-Tropsch, sur la base du poids total du concentré d'additifs ; - au moins 3,0 % en poids d'un modificateur de viscosité, sur la base du poids total du concentré d'additifs; et - moins de 5,0 % en poids d'un accélérateur de solubilité, sur la base du poids total du concentré d'additifs.
EP10784756A 2009-11-25 2010-11-23 Concentré d'additifs Withdrawn EP2504416A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10784756A EP2504416A1 (fr) 2009-11-25 2010-11-23 Concentré d'additifs

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09177029A EP2192168A1 (fr) 2009-11-25 2009-11-25 Concentré d'additifs
PCT/EP2010/067995 WO2011064194A1 (fr) 2009-11-25 2010-11-23 Concentré d'additifs
EP10784756A EP2504416A1 (fr) 2009-11-25 2010-11-23 Concentré d'additifs

Publications (1)

Publication Number Publication Date
EP2504416A1 true EP2504416A1 (fr) 2012-10-03

Family

ID=42101346

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09177029A Withdrawn EP2192168A1 (fr) 2009-11-25 2009-11-25 Concentré d'additifs
EP10784756A Withdrawn EP2504416A1 (fr) 2009-11-25 2010-11-23 Concentré d'additifs

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09177029A Withdrawn EP2192168A1 (fr) 2009-11-25 2009-11-25 Concentré d'additifs

Country Status (7)

Country Link
US (1) US20120302480A1 (fr)
EP (2) EP2192168A1 (fr)
JP (1) JP2013512296A (fr)
CN (1) CN102686711A (fr)
BR (1) BR112012012373A2 (fr)
RU (1) RU2012126169A (fr)
WO (1) WO2011064194A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10829709B2 (en) * 2014-01-02 2020-11-10 Infineum International Limited Viscosity index improver concentrates for lubricating oil compositions
CN105861131A (zh) * 2016-04-28 2016-08-17 浙江康力博能源科技有限公司 一种节能型车辆齿轮油及其制备方法
US20180305633A1 (en) * 2017-04-19 2018-10-25 Shell Oil Company Lubricating compositions comprising a volatility reducing additive

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US6790386B2 (en) * 2000-02-25 2004-09-14 Petro-Canada Dielectric fluid
MXPA03007088A (es) * 2001-02-13 2003-11-18 Shell Int Research Composicion lubricante.
AR032941A1 (es) 2001-03-05 2003-12-03 Shell Int Research Un procedimiento para preparar un aceite base lubricante y aceite base obtenido, con sus diversas utilizaciones
US20030158055A1 (en) * 2002-01-31 2003-08-21 Deckman Douglas Edward Lubricating oil compositions
US20030166474A1 (en) * 2002-01-31 2003-09-04 Winemiller Mark D. Lubricating oil compositions with improved friction properties
US7195706B2 (en) * 2003-12-23 2007-03-27 Chevron U.S.A. Inc. Finished lubricating comprising lubricating base oil with high monocycloparaffins and low multicycloparaffins
US7465696B2 (en) * 2005-01-31 2008-12-16 Chevron Oronite Company, Llc Lubricating base oil compositions and methods for improving fuel economy in an internal combustion engine using same
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CA2626036A1 (fr) * 2005-10-17 2007-04-26 Shell Internationale Research Maatschappij B.V. Composition d'huile lubrifiante
US7732386B2 (en) * 2005-10-25 2010-06-08 Chevron U.S.A. Inc. Rust inhibitor for highly paraffinic lubricating base oil
US20090088352A1 (en) * 2007-09-27 2009-04-02 Chevron U.S.A. Inc. Tractor hydraulic fluid compositions and preparation thereof
EP2072610A1 (fr) 2007-12-11 2009-06-24 Shell Internationale Research Maatschappij B.V. Composition d'huile support
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Title
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Also Published As

Publication number Publication date
EP2192168A1 (fr) 2010-06-02
WO2011064194A1 (fr) 2011-06-03
RU2012126169A (ru) 2013-12-27
US20120302480A1 (en) 2012-11-29
JP2013512296A (ja) 2013-04-11
BR112012012373A2 (pt) 2017-07-04
CN102686711A (zh) 2012-09-19

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