EP2580308A1 - Fluides hydrauliques à base de silicone - Google Patents

Fluides hydrauliques à base de silicone

Info

Publication number
EP2580308A1
EP2580308A1 EP11725240.3A EP11725240A EP2580308A1 EP 2580308 A1 EP2580308 A1 EP 2580308A1 EP 11725240 A EP11725240 A EP 11725240A EP 2580308 A1 EP2580308 A1 EP 2580308A1
Authority
EP
European Patent Office
Prior art keywords
parts
group
component
average value
carbon atoms
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Withdrawn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
EP11725240.3A
Other languages
German (de)
English (en)
Inventor
Gary Allen Mcintyre
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.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
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 Dow Corning Corp filed Critical Dow Corning Corp
Publication of EP2580308A1 publication Critical patent/EP2580308A1/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Withdrawn legal-status Critical Current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
    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
    • C10M2211/044—Acids; Salts or esters thereof
    • 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
    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
    • C10M2211/044—Acids; Salts or esters thereof
    • C10M2211/0445—Acids; Salts or esters thereof used as base material
    • 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
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate metal salts
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • 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
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
    • C10M2229/0415—Siloxanes with specific structure containing aliphatic substituents 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • 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
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids

Definitions

  • the present invention relates to a hydraulic fluid composition
  • a hydraulic fluid composition comprising (A) at least one polydiorganosiloxane; (B) a chlorendate diester; and (C) a lubricant compound which is an antimony or lead compound of a dialkyldithiocarbamate or
  • Hydraulic systems in which power is transferred from one place to another, are used extensively in industrial equipment, farm equipment, transportation equipment, and the like. Illustrative of such equipment are lifters, jacks, elevators, mills, presses, and braking, power steering and suspension systems for vehicles.
  • Polydiorganosiloxanes have been recognized as having exceptional thermal and oxidative stability, compatibility with seal materials, and high viscosity indices, said properties making them potentially useful as hydraulic fluids.
  • the generally low surface tension of polydiorganosiloxanes tends to cause them to have marginal lubricity on metals.
  • additives improving the lubricity of polydiorganosiloxanes have been sought.
  • the present invention relates to a hydraulic fluid composition
  • a hydraulic fluid composition comprising (A) at least one polydiorganosiloxane; (B) a chlorendate diester; and (C) a lubricant compound which is an antimony or lead compound of a dialkyldithiocarbamate or
  • the present invention further relates to a hydraulic fluid composition
  • a hydraulic fluid composition comprising (A) at least two polydiorganosiloxanes; (B) a chlorendate diester; and (C) a lubricant compound which is an antimony or lead compound of a dialkyldithiocarbamate or dialkylpho sphorodithioate .
  • the present invention relates to a composition
  • a composition comprising
  • each R represents a monovalent group selected from hydrocarbon groups containing from 1 to 6 carbon atoms, and halogenated hydrocarbon groups containing from 1 to 6 carbon atoms
  • each R' represents a group selected from R groups, the hydride group, and the hydroxy group
  • w has an average value from 1 to 70
  • each R a represents an aryl hydrocarbon group having from 6 to 10 carbon atoms
  • x has an average value from 5 to 50
  • y has an average value from 0.5 to 6;
  • each R" represents a group selected from alkyl groups containing from 4 to 10 carbon atoms and the tetrahydrofurfuryl group;
  • a lubricant compound selected from N,N- dialkyldithiocarbamates of lead and antimony and dialkylphosphorodithioates of lead and antimony, the total parts of (A) plus (B) plus (C) being 100 parts by weight.
  • the present invention is a composition comprising
  • each R' represents a group selected from R groups, the hydride group, and the hydroxy group
  • w has an average value from 1 to 70
  • each R a represents an aryl hydrocarbon group having from 6 to 10 carbon atoms
  • x has an average value from 5 to 50
  • y has an average value from 0.5 to 6;
  • each R" represents a group selected from alkyl groups containing from 4 to 10 carbon atoms, and the tetrahydrofurfuryl group;
  • a lubricant compound selected from N,N- dialkyldithiocarbamates of lead and antimony and dialkylphosphorodithioates of lead and antimony, the total parts of (A) plus (B) plus (C) being 100 parts by weight.
  • the at least one polydiorganosiloxane, component (A) in the compositions of the present invention is selected from (Al) a polydiorganosiloxane having a formula R'R 2 Si- 0(Me 2 SiO) z SiR 2 R' and (A2) a polydiorganosiloxane having a formula
  • R'R 2 Si-0(Me 2 SiO) x (MeR a SiO) y SiR 2 R' wherein Me represents the methyl group, each R represents a monovalent group selected from hydrocarbon groups containing from 1 to 6 carbon atoms, and halogenated hydrocarbon groups containing from 1 to 6 carbon atoms, each R' represents a group selected from R groups, the hydride group, and the hydroxy group, R a represents an aryl hydrocarbon group having from 6 to 10 carbon atoms, w has an average value from 1 to 70, x has an average value from 5 to 50, and y has an average value from 0.5 to 6.
  • R hydrocarbon groups containing from 1 to 6 carbon atoms include methyl, ethyl, propyl, isobutyl, pentyl, isopentyl, neopentyl, hexyl, vinyl, and allyl.
  • Halogenated hydrocarbon groups consist of hydrocarbon groups as hereinabove delineated in which one or more of the hydrogen atoms has been replaced by a halogen atom, such as fluorine, chlorine, or bromine. Examples of halogenated hydrocarbon groups include chloromethyl, 3 chloropropyl, and 3,3,3 trifluoropropyl.
  • each R is a hydrocarbon group containing 1 to 4 carbon atoms.
  • each R is methyl .
  • R' represents a group selected from R groups, the hydride group, and the hydroxy group.
  • the R groups are as described above.
  • each R' is an R group.
  • each R' is methyl.
  • suitable R a hydrocarbon groups containing from 6 to 10 carbon atoms are phenyl, tolyl, mesityl, and napthyl.
  • each R a is phenyl.
  • Subscript w of Component (Al) has an average value from 1 to 70, alternatively 3 to 42, alternatively 5 to 35.
  • Subscript x of Component (A2) has an average value from 5 to 50, alternatively 11 to 43, alternatively 11 to 37.
  • Subscript y of Component (A2) has an average value from 0.5 to 6, alternatively 3 to 5, alternatively 3 to 4.
  • the viscosity of polydiorganosiloxane component (Al) is from 1.00 X 10 "6 m 2 /second to 1.00 X 10 "4 m 2 /second (1 to 100 centistokes) at 25° C.
  • the viscosity of polydiorganosiloxane component (Al) is from 2.00 X 10 "6 m 2 /second to 5.00 X 10 - " 5 m 2 /second at 25° C (2 to 50 centistokes).
  • the viscosity of polydiorganosiloxane component (Al) is from 5.00 X 10 "6 m 2 /second to 3.00 X 10 "5 m /second at 25° C. (5 to 30 centistokes).
  • the viscosity of polydiorganosiloxane component (A2) is from 1.00 X 10 "5 m 2 /second to 1.00 X 10 "4 m 2 /second (10 to 100 centistokes) at 25° C.
  • the viscosity of polydiorganosiloxane component (A2) is from 2.00 X 10 - " 5 m 2 /second to 7.50 X
  • polydiorganosiloxane component (A2) is from 2.00 X 10 - " 5 m 2 /second to 5.00 X 10 - " 5 m /second at 25° C. (20 to 50 centistokes)
  • Component (A) may be present in the composition in amounts from 2 to 99 parts based on 100 parts of components (A) plus (B) plus (C). Alternatively, Component (A) is present in amounts from 10 to 97 parts on the same basis. Alternatively, Component (A) is present in amounts from 20 to 96 parts on the same basis. Alternatively, Component (A) is present in amounts from 30 to 95 parts on the same basis. Whether Component (A) is at least one or at least two polydiorganosiloxanes, total parts Component (A) equals parts by weight Component (Al) plus parts by weight Component (A2).
  • Component (Al) may be present in the composition in amounts from 0 to 99 parts based on 100 parts of components (A) plus (B) plus (C). Alternatively, Component (Al) is present in amounts from 1 to 99 parts on the same basis. Alternatively, Component (Al) is present in amounts from 10 to 67 parts on the same basis. Alternatively, Component (Al) is present in amounts from 20 to 50 parts on the same basis. Alternatively, Component (Al) is present in amounts from 30 to 45 parts on the basis.
  • Component (A2) may be present in the composition in amounts from 0 to 99 parts based on 100 parts of components (A) plus (B) plus (C). Alternatively, Component (A2) is present in amounts from 1 to 99 parts on the same basis. Alternatively, Component (A2) is present in amounts from 30 to 87 parts on the same basis. Alternatively, Component (A2) is present in amounts from 35 to 76 parts on the same basis. Alternatively, Component (A2) is present in amounts from 50 to 65 parts on the basis. [0025] Suitable methods for synthesis of polydiorganosiloxanes for use as component (Al) and/or (A2) in the compositions of the present invention are well known.
  • Suitable synthetic methods is the cohydrolysis and subsequent condensation of appropriately selected diorganodialkoxysilanes or diorganodichlorosilanes, along with desired amounts of R'R 2 SiX species, wherein R' and R are as defined above and X represents a hydrolyzable group, such as a halo group, such as chloro, fluoro or bromo; or an alkoxy group, such as methoxy, or ethoxy.
  • R' and R are as defined above and X represents a hydrolyzable group, such as a halo group, such as chloro, fluoro or bromo; or an alkoxy group, such as methoxy, or ethoxy.
  • Another suitable synthetic method is the acid or base catalyzed equilibration of diorganocyclosiloxanes and an R'R 2 SiX species as defined above.
  • the chlorendate diester, component (B) in the compositions of the present invention has the formula R"0 2 CQC0 2 R", wherein -0 2 C-QC0 2 - represents the chlorendate residue:
  • each R" is independently selected from alkyl groups containing from 4 to 10 carbon atoms, and the tetrahydrofurfuryl group.
  • alkyl groups are butyl, pentyl, hexyl, heptyl, octyl, 2-ethylhexyl, nonyl, decyl, and the like.
  • each R" is butyl or 2-ethylhexyl.
  • Chlorendate diesters are well-known materials; many are commercially available.
  • the preferred chlorendate diesters are commercially available from, for example, Norquay Technology Chester PA.
  • Component (B) may be present in the composition in amounts from 0.9 to 60 parts based on 100 parts of components (A) plus (B) plus (C). Alternatively, Component (B) is present in amounts from 3 to 40 parts on the same basis. Alternatively, Component (B) is present in amounts from 3.7 to 30 parts on the same basis. Alternatively, Component (A) is present in amounts from 4.5 to 10 parts on the same basis.
  • Component (C) in the compositions of the present invention is selected from the lead and antimony compounds of ⁇ , ⁇ -dialkyldithiocarbamates and the lead and antimony compounds of dialkyl phosphorodithioates. These compounds have the general formulae:
  • each R'" is independently selected from alkyl groups having from 3 to 10 carbon atoms.
  • alkyl groups having from 3 to 10 carbon atoms include propyl, butyl, 2- ethylhexyl, pentyl, hexyl, heptyl, nonyl, decyl, and the like.
  • each R'" is propyl or 2-ethylhexyl.
  • each R'" is propyl.
  • component (C) in the compositions of the present invention are well-known materials in the lubricant art; many are commercially available.
  • the preferred lubricant compounds are commercially available from, for example, the Vanderbilt Company of Norwalk, CT.
  • Component (C) may be present in the composition in amounts from 0.1 to 38 parts based on 100 parts of components (A) plus (B) plus (C). Alternatively, Component (C) is present in amounts from 0.2 to 20 parts on the same basis. Alternatively, Component (B) is present in amounts from 0.3 to 15 parts on the same basis. Alternatively, Component (A) is present in amounts from 0.5 to 10 parts on the same basis.
  • composition can include other ingredients, in certain embodiments a block copolymer consisting of, on average, at least one block of
  • the polydiorganosiloxane hydraulic fluid of the present invention are prepared by mixing appropriately selected quantities of components (A), (B), and (C) together. Mixing can be accomplished by heating said components together, such as heating said components together at a temperature of about 70°C, and holding said components together at that temperature for a period of time from about 1 minute to about 30 minutes in duration.
  • mixing can be accomplished by agitation of said components together.
  • said components can be mixed together by means of a high shear mixer, such as an Eppenbach.RTM. mixer.
  • mixing can be accomplished by heating and agitating. Agitation, with or without heating, is a preferred method for preparation of the
  • non-essential components such as colorants, spray flammability resistance additives, fire retardants, and the viscosity control additives can be added to the polydiorganosiloxane hydraulic fluid compositions of the present invention.
  • non-essential additives include dyes, to make the hydraulic fluid more readily identifiable, and highly brominated compounds to reduce flammability.
  • the polydiorganosiloxane hydraulic fluid compositions of the present invention are stable hydraulic fluids of excellent lubricity. Accordingly, it is a further object of this invention to provide, in a process of transmitting power from one place to another place, the improvement which comprises using as the hydraulic fluid the composition comprising components (A), (B), and (C) as described above. Said process of transmitting power from one place to another place via a hydraulic fluid is accomplished through use of a hydraulic system.
  • hydraulic systems vary from highly complex control systems to simple presses, they can be characterized as comprising 6 main elements in fluid communication: (1) an hydraulic fluid; (2) a reservoir in which to store said fluid; (3) means to generate pressure in said fluid, such as a pump or the like; (4) piping, to transmit the generated pressure through said fluid; (5) means to convert said pressure into power at a place removed from the place at which the pressure was generated, such as an hydraulic motor, actuator, cylinder, ram, jack, or the like; and (6) pressure control means, such as control valves, relief valves and the like.
  • the polydiorganosiloxane hydraulic fluid compositions of the present invention can be used as the hydraulic fluid in a system for transmitting power from one place to another place as hereinabove described.
  • the hydraulic fluid compositions of the present invention can be used as the hydraulic fluid in hydraulic systems wherein the fluid is exposed to extremes of temperature and high pressure.
  • Viscosity was determined by the general procedure set forth in ASTM D-445.
  • Lubricity was determined by the general procedure set forth in ASTM D- 4172. Standard 1.27 cm (1/2 inch) AISI-E-52100 chrome alloy steel balls were thoroughly cleaned and placed in a Roxana Four Ball Tester with the appropriate amount of fluid to be tested. Testing conditions were: 1200 r.p.m., 40 kg load, 75°C. Testing was one hour in duration. Results of this testing are reported herein as average scar diameter, determined by microscopic examination of the balls at the conclusion of testing. Results are reported in mm, and are reproducible within a range of approximately +/- 0.1%. EXAMPLE 1
  • a hydraulic fluid of the present invention was prepared by thoroughly mixing 56 parts of dimethyl, phenylmethyl, trimethyl-terminated siloxane having a viscosity of 5.00x10 " 5 m 2 /second measured at 25°C, 37 parts dimethyl, trimethylsiloxy-terminated siloxane having a viscosity of l .OOxlO "5 m 2 /second measured at 25°C, 5.7 parts di-2-ethylhexyl chlorendate (DEHC) and 0.65 parts antimony tris(o,o-dipropylphosphorodithioate).
  • a low shear mixing apparatus such as a KitchenAide Mixer was utilized until the mixture acquired a uniform appearance and no settling was noted. The mixture exhibited an almost clear appearance.
  • Components and amounts as well as viscosity and average wear scar diameters are displayed in Table 1.

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

La présente invention porte sur une composition de fluide hydraulique comprenant (A) au moins un polydiorganosiloxane ; (B) un diester de type chlorendate ; et (C) un composé lubrifiant qui est un composé de l'antimoine ou du plomb d'un dialkyldithiocarbamate ou dialkylphosphorodithioate.
EP11725240.3A 2010-06-08 2011-05-24 Fluides hydrauliques à base de silicone Withdrawn EP2580308A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35261710P 2010-06-08 2010-06-08
PCT/US2011/037647 WO2011156129A1 (fr) 2010-06-08 2011-05-24 Fluides hydrauliques à base de silicone

Publications (1)

Publication Number Publication Date
EP2580308A1 true EP2580308A1 (fr) 2013-04-17

Family

ID=44314967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11725240.3A Withdrawn EP2580308A1 (fr) 2010-06-08 2011-05-24 Fluides hydrauliques à base de silicone

Country Status (3)

Country Link
US (1) US20130079263A1 (fr)
EP (1) EP2580308A1 (fr)
WO (1) WO2011156129A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014216882B4 (de) * 2014-08-26 2023-08-10 Aktiebolaget Skf Herkunftsidentifizierbares Lager
JP7277143B2 (ja) 2016-05-11 2023-05-18 コモンウェルス サイエンティフィック アンド インダストリアル リサーチ オーガニゼーション ポリシロキサン流体圧流体

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US3759827A (en) * 1970-09-29 1973-09-18 Dow Corning Lubricant compositions
BE794482A (fr) * 1972-01-25 1973-07-24 Du Pont Compositions photopolymerisables contenant des composes cis- alpha -dicarbonyliques cycliques et des sensibilisateurs choisis
US3981810A (en) * 1975-11-11 1976-09-21 The United States Of America As Represented By The Secretary Of The Navy Grease composition
GB1535265A (en) 1975-12-10 1978-12-13 Dow Corning Hydraulic fluid
US4137189A (en) * 1977-01-19 1979-01-30 Dow Corning Corporation Three component common hydraulic fluid comprising a non-linear siloxane fluid
DE3039736C2 (de) 1980-10-21 1986-06-12 Wacker-Chemie GmbH, 8000 München Verwendung von Organopolysiloxan als Bremsflüssigkeit bzw. Bestandteil von Bremsflüssigkeiten
US4443351A (en) 1982-11-01 1984-04-17 Dow Corning Corporation Silicone hydraulic fluids and additive concentrates therefor
US4908143A (en) * 1988-10-04 1990-03-13 Union Oil Company Of California Lubricating compositions and method of using same
US6348437B1 (en) 1996-05-01 2002-02-19 Dow Corning Corporation Silicone oils with improved viscosity stability
US7122508B2 (en) * 2002-10-31 2006-10-17 Chevron Oronite Company Llc Methods and compositions for reducing wear in internal combustion engines lubricated with a low phosphorous content borate-containing lubricating oil

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Title
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Also Published As

Publication number Publication date
US20130079263A1 (en) 2013-03-28
WO2011156129A1 (fr) 2011-12-15

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