Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
  • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
  • C07F9/02—Phosphorus compounds
  • C07F9/06—Phosphorus compounds without P—C bonds
  • C07F9/08—Esters of oxyacids of phosphorus
  • C07F9/09—Esters of phosphoric acids
  • C07F9/12—Esters of phosphoric acids with hydroxyaryl compounds
• • 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
  • C10M3/00—Liquid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single liquid substances
• • 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
  • C10M2211/02—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only
  • C10M2211/024—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only aromatic
• • 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
  • C10M2211/06—Perfluorinated compounds
• • 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
  • C10M2223/041—Triaryl phosphates
• • 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 phosphates employed in the process of the present invention are the benzylated andstyrenated triaryl phosphates having the structure:
• n is a number from 0.5 to 2 inclusive
• m is a number between I and 3 inclusive
• x is chlorine or bromine
• R, R and R are each a lower alkyl group having from one to about eight carbon atoms
• a and d are each numbers from to 5 inclusive, such that the sum of a and d does not exceed 5
• b is a number between 0 and 4 inclusive
• c is a number from 0 to S inclusive
• R and R are each hydrogen or methyl.
• the preferred compounds for use in the present invention are the alpha-methylbenzyl compounds, that is, those compounds having R equal to methyl and R equal to hydrogen in the generic formula given above.
• the use of the latter compounds is preferred-because of their high degree of oxidative stability along with their surprisingly high viscosity indices, even as compared with the other compounds coming within the scope of this invention.
• This is particularly surprising, since the alpha-methylbenzyl compounds would normally be expected to exhibit the lowest oxidative stability of the compounds of the present invention since the alpha-methyl group normally activates a benzyl group toward oxidative attack.
• preferred compounds are:
• the latter compounds are characterized by having desirable high viscosity indices. This is surprising since they have a large proportion of cyclic structures per molecule which would normally be expected to lower their viscosity indices as was stated above. Thus, one would expect the triaryl phosphates such as the tricresyl and trixylyl phosphates to have higher viscosity indices than the benzylated and styrenated triaryl phosphates of the present invention. However, the compounds of the present invention exhibit viscosity indices which are much higher than those of the triaryl phosphates.
• the benzylated and styrenated triaryl phosphates used in the process of the present invention can be used individually or blended with one another, so as to obtain a fluid having properties which are intermediate between the individual phosphates thus blended.
• the functional fluids of this invention can also contain anticorrosion agents, defoamers and various load bearing additives all of which are well described in the literature.
• the functional fluids of this invention can be mixed with less costly petroleum oils and/or polychloroaromatic compounds, particularly polychlorobenzyls and polychlorobiphenyls.
• the compounds used in the process of the present invention are deployed in a closed hydraulic system such as a compressor, hydraulic lift, deck edge elevators, basic oxygen furnace die casting equipment, leveling device or servo control unit in such a manner that when pressure is applied to the phosphate at a specific point within the confines of the hydraulic system, the pressure will be transmitted to any other point along the hydraulic system by the phosphate.
• a closed hydraulic system such as a compressor, hydraulic lift, deck edge elevators, basic oxygen furnace die casting equipment, leveling device or servo control unit in such a manner that when pressure is applied to the phosphate at a specific point within the confines of the hydraulic system, the pressure will be transmitted to any other point along the hydraulic system by the phosphate.
• a and d are each numbers from 0 and 5 inclusive
• Table 2 demonstrates that the compounds texted have an such that the sum of a and d is less than or equal to 5,' is oxidative stability comparable or superior to the commercial selected from the group consisting of chlorme'and bromine; hydraulic fluid. Further, it demonstrates that the alpha-methyl and applying pressure to said phosphate at any point in said compounds are far superior in oxidative stability and are, system so as to thereby transmit the thus applied pressure therefore, preferred. throughout said system through the medium of said
• the fluids employed in the present invention also perform phosphate. favorably when tested in a Vickers 104 Vane Pump. During 2. The process of claim 1, wherein R is hydrogen and R is test runs, these fluids exhibit viscosity, color and neutralizamethyl.
• a process for the transmission of pressure in a hydraulic flareally available hydraulic fluids tested. system which comprises deploying within said hydraulic What is claimed is: system an effective amount of alpha-methylbenzylphenyl l.
• a process for the transmission of pressure in a hydraulic diphenyl phosphate, and applying pressure to said phosphate system which comprises deploying within said hydraulic at any point in said system so as to thereby transmit the thus system an effective amount of a phosphate having structure applied pressure throughout said system through the medium corresponding to the formula: of said phosphate.
• a process for the transmission of pressure in a hydraulic (Xh (Rm (R )o system which comprises deploying within said hydraulic R 0 s stern an effective amount of bis(al ha-meth lbenzylheny P y P -0 yl) phenyl phosphate and applying pressure to said phosphate i J lat any point in said system so as to thereby transmit the thus )a m n 3-n applied pressure throughout said system through the medium of said phosphate.
• n is a number from 0.5 to 2 inclusive
• m is a number from i to 3 inclusive
• R and R are each selected from the group consisting of hydrogen and methyl
• R, R and R are 7

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Biochemistry (AREA)
• General Health & Medical Sciences (AREA)
• Molecular Biology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Lubricants (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=21761729

Family Applications (1)

Country Status (9)

• 1970
  • 1970-02-24 US US13782A patent/US3674698A/en not_active Expired - Lifetime
• 1971
  • 1971-01-22 CA CA103,391A patent/CA962661A/en not_active Expired
  • 1971-01-26 IL IL36068A patent/IL36068A/xx unknown
  • 1971-02-05 NL NL7101567A patent/NL7101567A/xx unknown
  • 1971-02-23 CH CH258371A patent/CH543583A/de not_active IP Right Cessation
  • 1971-02-23 DE DE19712108399 patent/DE2108399A1/de active Pending
  • 1971-02-23 FR FR7106146A patent/FR2081035B1/fr not_active Expired
  • 1971-02-23 BE BE763303A patent/BE763303A/xx unknown
  • 1971-04-19 GB GB2102571A patent/GB1302995A/en not_active Expired

Also Published As

Similar Documents

Legal Events