EP0267558A2 - Compositions épaissisantes pour des compositions hydrauliques et des fluides à base d'eau pour le traitement des métaux - Google Patents

Compositions épaissisantes pour des compositions hydrauliques et des fluides à base d'eau pour le traitement des métaux Download PDF

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Publication number
EP0267558A2
EP0267558A2 EP87116428A EP87116428A EP0267558A2 EP 0267558 A2 EP0267558 A2 EP 0267558A2 EP 87116428 A EP87116428 A EP 87116428A EP 87116428 A EP87116428 A EP 87116428A EP 0267558 A2 EP0267558 A2 EP 0267558A2
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EP
European Patent Office
Prior art keywords
alcohol
hlb
polymer
moles
ethylene oxide
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Withdrawn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
EP87116428A
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German (de)
English (en)
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EP0267558A3 (fr
Inventor
Pablo M. Hernandez
Curtis R. Petersen
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.)
SC Johnson and Son Inc
Original Assignee
SC Johnson and Son Inc
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Publication date
Application filed by SC Johnson and Son Inc filed Critical SC Johnson and Son Inc
Publication of EP0267558A2 publication Critical patent/EP0267558A2/fr
Publication of EP0267558A3 publication Critical patent/EP0267558A3/fr
Withdrawn legal-status Critical Current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
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/28—Polyoxyalkylenes of alkylene oxides containing 2 carbon atoms only
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/36—Polyoxyalkylenes etherified
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M149/00—Lubricating compositions characterised by the additive being a macromolecular compound containing nitrogen
    • C10M149/12—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M149/14—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds a condensation reaction being involved
    • C10M149/18—Polyamides
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
    • C—CHEMISTRY; METALLURGY
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
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    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
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    • 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
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    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/06—Perfluorinated compounds
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/14—Containing carbon-to-nitrogen double bounds, e.g. guanidines, hydrazones, semicarbazones
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/20—Containing nitrogen-to-oxygen bonds
    • C10M2215/202—Containing nitrogen-to-oxygen bonds containing nitro groups
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
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    • C10M2215/222—Triazines
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
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    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
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    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • C10M2215/226—Morpholines
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/30—Heterocyclic compounds
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    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/042—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds between the nitrogen-containing monomer and an aldehyde or ketone
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    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/043—Mannich bases
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    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/045—Polyureas; Polyurethanes
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
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    • C10M2219/106—Thiadiazoles
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
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    • C10M2223/045—Metal containing thio derivatives
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
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    • 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
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
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    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01—Emulsions, colloids, or micelles
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    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • This invention relates to thickener compositions for water-based hydraulic fluid compositions and metalworking fluid or lubricant compositions, which are thickened to an oil-like viscosity by the interaction of thickeners at a low solids concentration. More particularly, this invention relates to thickener compositions, hydraulic fluid and metalworking fluid concentrates, aqueous concentrates and water-based hydraulic fluid and metalworking lubricant compositions employing polyurethanes and ethoxylated alcohols.
  • hydraulic machinery mechanical force is imparted to a fluid, known as hydraulic fluid, in the form of pressure by means of a hydraulic pump.
  • the energy imparted to the hydraulic fluid is utilized by transforming this pressure energy back to mechanical energy by a hydraulic motor mechanism.
  • the hydraulic fluid is utilized as a pressure and volume transmitting medium. Therefore, the main function of a hydraulic fluid is power transfer.
  • any non-compressible fluid can perform the function of a hydraulic fluid, including water.
  • Petroleum-based hydraulic fluids are said to offer several advantages over water-based hydraulic fluids.
  • water-based fluids are said to suffer from the development of rust of the ferrous components of the mechanical equipment.
  • oil-based products have been reported to prevent the wear of machinery by lubricating the equipment.
  • oil-based products are believed to exhibit greater viscosity than water-based ones and thus account for the reduction of fluid leakage in the mechanical equipment utilized.
  • the development of technology for fluid additives has advanced to such an extent that improvement in viscosity, foam stability, wear prevention and corrosion prevention properties is further enhanced by the use of such additives in oil-based hydraulic fluids.
  • a hydraulic fluid should possess include pump volume efficiency, which is closely related to its rheological properties, and good wear resistance. Low wear rates increase the pump life of a hydraulic fluid. Additionally, compositions which are stable throughout a temperature range not only maintain their viscosity, but also their chemical integrity.
  • Metalworking fluid compositions should also function to reduce friction and heat generation, hence to provide lubrication and cooling in the cutting area in order to extend tool life and improve workpiece finish. These two major effects, lubrication and cooling, are best accomplished by oil-based and water-based fluids, respectively.
  • Oil-based and water-based fluids are best accomplished by oil-based and water-based fluids, respectively.
  • Urethane polymers employed in aqueous thickening compositions are disclosed in U.S. Patent No. 4,426,485 to Hoy. It is said that these urethane polymers provide better thickening and leveling characteristics than do traditional cellulosic thickening agents in waterborne coatings. Such thickened compositions are stated to be useful in a wide variety of applications. However, only latex compositions are mentioned. Additionally, no reference or suggestion is made to the use of these urethane polymers in hydraulic or lubricant systems in association with the specific ethoxylated alcohols of this invention.
  • compositions containing the above-described urethane polymers decreases their viscosity to a significantly greater extent than when these urethane polymers are used in the presence of at least one of the ethoxylated alcohols of this invention.
  • British Patent No. 1,069,735 also discloses the use of urethane polymers as a thickening agent for aqueous preparations. These urethane polymers are the reaction products of polyethylene glycol ethers and isocyanates. These compositions are stated to be suitable for emulsions of cutting oils. However, this patent does not disclose or suggest the use of such urethane polymers in combination with the specific ethoxylated alcohols of this invention.
  • U.S. Patent No. 4,395,351 to Camp discloses polyether-based thickeners for aqueous systems. These thickeners are mixtures of a polyether and an ethoxylated phosphate ester, or the ester and a water-soluble amine.
  • This patent does not disclose or suggest the use of specific ethoxylated alcohols of this invention in combination with the urethane polymers of this invention to achieve the superior viscosity and shear stability characteristics of the subject invention.
  • this patent teaches that the selection of suitable thickening agents is an empirical and complex task. "The diversity of available thickening agents is an indication that not all are equally useful.
  • the present invention provides for thickener compositions for water-based hydraulic fluid and/or metalworking fluid or lubricant compositions characterized by
  • the polymer is a urethane polymer of the structure: wherein R and R' are each C 12 -C 18 alkyls; R" is a C 7 -C 36 alkyl; x is an integer from 90 to 455 and n is an integer from 1 to 4.
  • ethoxylated alcohols that are nominally outside the scope of the above description of ethoxylated alcohols can be combined to improve their stability, viscosity and shear stability properties when formulated with the polyurethanes of this invention.
  • These ethoxylated alcohols can be described as mixtures of ethoxylated alcohols selected from the group consisting of: (1) a mixture of C S -C 18 saturated alcohols with between about 2 and 25 moles of ethylene oxide per mole of alcohol and having an HLB greater than about 4 and less than 11 or greater than 14 and less than about 17, or (2) a mixture of C S -C 18 unsaturated alcohols with between about 2 and 25 moles of ethylene oxide per mole of alcohol and having an HLB greater than about 4 and less than 11 or greater than 14 and less than about 17, or (3) a mixture at least one alcohol from (1) and at least one alcohol from (2). It is critical that the HLB of these mixtures be between 11 and 14 to show improvement in the above-stated properties and therefore act similarly to the above
  • this invention relates to fluid concentrates for water-based hydraulic fluid compositions comprising at least one polyurethane of the invention, at least one ethoxylated alcohol of the invention, and one or more of the following: extreme pressure or antiwear additives, dispersants, nonionic or anionic surfactants, ferrous and/or non-ferrous corrosion inhibitors, and amines.
  • this invention relates to concentrates comprising at least one polyurethane of the invention and at least one ethoxylated alcohol of the invention and any of the adjuvants set forth above in an aqueous carrier.
  • the invention relates to aqueous hydraulic and metalworking compositions and formulations ready for use, which can include the aqueous concentrates diluted to a desired degree for immediate use.
  • this thickener combination also contributes to lubrication and emulsification in aqueous hydraulic and metalworking fluids.
  • This combination is unique in that neither of its individual components, the polyurethane or the ethoxylated alcohol, alone, will give the superior rheological properties. Further, the superior viscosity and lubrication properties are obtained at surprisingly low total actives concentrations.
  • shear stability observed with the fluid compositions of this invention is believed to be significantly greater than the stability values expected from the mere sum of its individual components, e.g., the polyurethane and the ethoxylated alcohol.
  • Polymers such as disclosed in U.S. Patent No. 4,426,485 to Hoy, which herein is incorporated by reference, may be utilized as one component of the thickener composition in accordance with this invention.
  • polymers are described as water-soluble, thermoplastic, organic polymers having segments of bunched, monovalent, hydrophobic groups and an average molecular weight of at least about 10,000.
  • the polymers have an amount of hydrophobic segments, such that each contain at least one monovalent hydrophobic group covalently bonded to the polymer, wherein at least two monovalent hydrophobic groups are present per hydrophobic segment, sufficient to provide for enhanced thickening of aqueous solutions containing the polymer.
  • the polymers are structurally defined to include those compounds having the formula I: wherein A is a water-soluble polymer segment; B is a connecting segment comprising a covalent bond or a polyvalent organic radical; C is a monovalent hydrophobic group; the number of hydrophobe segments, x, defined by B(C)y, is greater than 0; the number of hydrophobes, C, for each hydrophobic segment, defined as y, is greater than or equal to 1 providing an average of all y values, of greater than 1, such that the polymer has an amount of bunching comprising at least two hydrophobes per hydrophobic segment sufficient to provide for enhanced thickening of aqueous solutions containing the polymer.
  • the y value sets forth the number of hydrophobes per hydrophobic segment.
  • the x value sets forth the average number of hydrophobic segments per molecule.
  • the average number of hydrophobes per hydrophobic segment, y' is greater than 1.
  • the average number of hydrophobes per hydrophobic segment, y is defined as a total number of hydrophobes (i.e., the summation of all hydrophobes per hydrophobic segment, y x ), divided by the total number of hydrophobic segments, x.
  • the connecting segment, B may be water-soluble or water-insoluble.
  • the hydrophobic segments, B(C)y may be attached in a pendant fashion to x terminal and/or interior bonds of the water-soluble polymer backbone A; or the connecting segment, B, may be incorporated as part of the polymer backbone between a plurality of water-soluble, polymer segments.
  • a more preferred class of polymers of the invention include those polyurethane polymers having the following structural formula II. wherein R and R' are each C 12 -C 18 alkyls; R" is a C 7 -C 36 alkyl; x is an integer from 90 to 455 and n is an integer from 1 to 4.
  • Such compounds are polyether polyurethanes preferably having a molecular weight from 600 to about 50,000, more preferably from 1,000 to about 14,000.
  • An especially preferred polyurethane is sold under the trademark UCAR Thickener SCT-100 by Union Carbide Corp. That thickener is commercially available as a solution having 50% nonvolatiles in a solvent of 40% wt. butyl "Cellosolve” and 60% water and has a Brookfield viscosity, 50% of 3000 cp.
  • Butyl "Cellosolve” is a specific type of butoxyethanol, i.e., the ether alcohol that conforms to the formula: C A H 9 0CH 2 CH 2 0H, and is sold by the Union Carbide Corp.
  • SCT-200 also sold by the Union Carbide Corporation is believed to give similar results as SCT-100 when used in accordance with the teachings of this invention.
  • Another class of especially preferred polyurethanes is represented by structural formula III as follows: wherein R', R" and x are as before. These include the polyurethanes sold by Borchigel of Germany, under the trademark Borchigel L-75, having an Mw of 27,792 and an Mn of 14,527.
  • the HLB value (the hydrophilic-lipophilic balance) of the urethane polymers is a significant parameter. HLB values ranging from about 10 to 20 are preferably used in accordance with this invention, although higher and lower values are possible.
  • the ethoxylated alcohols of this invention consist of at least one ethoxylated alcohol selected from the group consisting of C g- C 15 saturated alcohols with between about 5 and 20 moles of ethylene oxide per mole of alcohol and having an HLB between 11 and 14, and C s -C 18 unsaturated alcohols with between about 5 and 20 moles of ethylene oxide per mole of alcohol and having an HLB between 11 and 14.
  • the ethoxylated alcohols of this invention are preferably selected from the group consisting of (1) at least one oleyl or lauryl alcohol that conforms to the formulas and respectively, wherein n is between about 5 and 20 and the oleyl or lauryl alcohol or mixture thereof has an HLB between 11 and 14; (2) pareth-25-9, which is a polyethyene glycol ether of a mixture of synthetic C 12 -C 15 fatty alcohols with an average of 9 moles of ethylene oxide and an HLB of about 12.8; (3) pareth-91-6, which is a polyethylene glycol ether of a mixture of synthetic Cg-C11 fatty alcohols with an average of 6 moles of ethylene oxide and an HLB of about 12.5; (4) pareth-15-9, which is a polyethylene glycol ether of a mixture of synthetic C 11 -C 15 fatty alcohols with an average of 9 moles of ethylene oxide and an HLB of about 13.5; and (5) mixtures thereof.
  • Oleyl alcohol having an average
  • mixtures of ethoxylated alcohols that are nominally outside the scope of the above description of ethoxylated alcohols can be combined to improve their stability, viscosity and shear stability properties when formulated with the polyurethanes of this invention.
  • ethoxylated alcohols can be described as mixtures of ethoxylated alcohols selected from the group consisting of: (1) a mixture of Cg-C 18 saturated alcohols with between about 2 and 25 moles of ethylene oxide per mole of alcohol and having an HLB greater than about 4 and less than 11 or greater than 14 and less than about 17, or (2) a mixture of C g- C 18 unsaturated alcohols with between about 2 and 25 moles of ethylene oxide per mole of alcohol and having an HLB greater than about 4 and less than 11 or greater than 14 and less than about 17, or (3) a mixture of at least one alcohol from (1) and at least one alcohol from (2). It is critical that the HLB of these mixtures be between 11 and 14 to show improvement in the above-stated properties and therefore act similarly to ethoxylated alcohols described above. These mixtures include those shown in Table 3 as discussed herein.
  • the weight ratio of polyurethane to ethoxylated alcohol can range from about 100:1 to 1:100, preferably from about 20:1 to 1:20, more preferably, from about 5:1 to 1:15, and, most preferably, from about 5:3 to 1:1.
  • an aqueous concentrate is formulated having from about 20 to 50% water based on the total weight of the composition.
  • the aqueous concentrate contains from about 0.05 to 50 weight percent of said polyurethane thickener and from about 0.05 to 50 weight percent of said ethoxylated alcohol of the invention. Unless otherwise indicated all weights herein are in weight percent of the total composition.
  • water-based functional fluids are formulated.
  • the aqueous concentrates of the invention may be diluted such that the water content of the final aqueous fluid composition is from about 60 to 99 percent by weight.
  • the polyurethane and ethoxylated alcohol concentrations are each employed in amounts from about 0.05 to 25 weight percent, preferably from about 1 to 10 weight percent.
  • Non-aqueous hydraulic fluid concentrates, aqueous hydraulic fluid concentrates and aqueous functional fluid compositions, in accordance with this invention may typically further comprise one or more of the following ingredients: extreme pressure or antiwear additives, dispersants, nonionic or anionic surfactants, ferrous and/or non-ferrous corrosion inhibitors, and amines.
  • extreme pressure or antiwear components of the fluids of this invention are well known in the art and individual compounds are typically selected from the broad classes of materials useful for this purpose.
  • Preferred antiwear additives are the metal salts of acid phosphates, chlorinated hydrocarbons, and acid thiophosphate hydroxycarbyl esters, with zinc di(alkyl) or di(aryl) dithiophosphate being especially preferred.
  • Lubrizol 5604 a trademark of the Lubrizol Corporation, is an especially preferred antiwear additive.
  • This primary alkyl zinc dithiophosphate has a specific gravity of 1.08 at 15.6°C. and a viscosity of 13.5 centistokes (cSt) at 100°C. Its chemical weight percentages of phosphorus, sulfur and zinc range from about 6.8-7.2, 14.3-15.3 and 7.4-8.2, respectively.
  • Molyvan L-B contains molybdenum, sulfur and phosphorus in weight percentages of about 8.1, 12.3 and 6.4, respectively, has a viscosity of 9.07 centistokes at 100°C. and a flash point (COC) of 165.6°C.
  • the concentration of such extreme pressure and antiwear components may range from about 0.05 to 20 percent by weight of the aqueous concentrate.
  • the extreme pressure or antiwear additive concentration of a functional aqueous fluid composition typically varies from about 0.05 to 5 percent by weight.
  • the concentration of extreme pressure or antiwear additive, in accordance with this invention, is not critical.
  • the dispersants used in accordance with this invention are well known in the art and individual compounds are typically selected from the broad classes of materials useful for this purpose. These compounds are useful for incorporating oil-soluble, water-insoluble functional additives into aqueous systems, i.e., antiwear, extreme pressure and load-carrying agents, such as dithiophosphates.
  • the dispersants (carboxylic solubilizerisurfactant combinations) disclosed in U.S. Patent No. 4,368,133 typically are used in water-based hydraulic fluids. These solublizers are made by reacting an acylating agent with N-(hydroxyl-substituted hydrocarbyl) amines and surfactants.
  • a preferred dispersant utilized in accordance with this invention is available under the trademark Lubrizol 5603 from The Lubrizol Corporation. That dispersant has a viscosity at 100°C. of 650 cSt, a specific gravity of 0.951 at 15.6°C., and a flash point (PMCC) of 83°C.
  • the concentration of dispersant typically ranges from about 0.1 to 30 percent by weight in an aqueous concentrate.
  • the dispersant concentration of an aqueous functional fluid composition typically varies from about 0.1 to 5 percent by weight.
  • the concentration of dispersant, in accordance with this invention, is not critical.
  • the surfactants or wetting agents utilized in accordance with this invention can be either nonionic or anionic.
  • the surfactant aids in the dispersal of the functional additives in the aqueous system.
  • the surfactant is a hydrophilic surfactant and, generally has an HLB value in the range of about 10 to 20. See for example, McCutcheon's "Detergents and Emulsifiers", North American Edition, published by McCutheon's Division, MC Publishing Corporation, Glen Rock, New Jersey, U.S.A., which is hereby incorporated by reference, for their disclosure in this regard.
  • nonionic surfactants are generally used.
  • alkylene oxide-treated products such as ethylene oxide-treated phenols, esters, amines and amides.
  • Ethylene oxide/propylene oxide block copolymers are also useful nonionic surfactants.
  • Glycerol esters and sugar esters are also known to be nonionic surfactants.
  • a typical nonionic surfactant class useful with the derivatives of the present invention are the alkylene oxide-treated alkyl phenols such as the ethylene oxide alkyl phenol condensates sold by the Rohm & Haas Company under the family mark, Triton.
  • Triton X-100 which contains an average of 9-10 ethylene oxide units per molecule, has an HLB value of about 13.5 and a molecular weight of about 628.
  • Triton X-100 is a specific type of Octoxynol-9, the ethoxylated alkyl phenol that conforms generally to the formula VI: where n is an integer having an average value of 9.
  • Triton X-45 which contains an average of 5 ethylene oxide units per molecule, has an HLB value of about 18.4 and a molecular weight of about 426.
  • Triton X-45 is a specific type of Octoxynol-5, the ethoxylated alkyl phenol that conforms generally to the above-formula VI where n is an integer having an average value of 5.
  • the water-soluble esters of the ethoxylated C o -C 36 aliphatic monohydric or polyhydric alcohols with aliphatic acids, and aliphatic dimer acids are typically utilized in accordance with this invention.
  • Such ethoxylated esters have a hydrophilic-lipophilic balance (HLB) in the range of 10 to 20.
  • Representative water-soluble polyoxyethylated esters having about 5 to about 20 moles of oxide per mole are the polyoxyethylene derivatives of the following esters; sorbitan monooleate, sorbitan trioleate, sorbitan monostearate, sorbitan tristearate, sorbitan monopalmitate, sorbitan monoisostearate, and sorbitan monolaurate.
  • Sipon ESY a registered trademark of Alcolac Inc.
  • anionic surfactants are the widely known metal carboxylate soaps, organosulfates, sulfonates, sulfocarboxylic acids and their salts, and phosphates.
  • the concentration of surfactant typically ranges from about 0.25 to 20 percent by weight aqueous concentrate.
  • the surfactant concentration of an aqueous functional fluid composition typically varies from about 0.25 to 5 percent by weight.
  • the concentration of surfactant, in accordance with this invention, is not critical.
  • the ferrous corrosion inhibitors act primarily as chelating agents for iron and its alloys. Such materials are well known in the art and individual compounds can be selected from the broad class of materials useful for this purpose. Boric acid and caprylic acid are preferred ferrous corrosion inhibitors.
  • the concentration of ferrous corrosion inhibitor in aqueous concentrates typically varies from about 0.05 to 10 percent by weight.
  • the concentration in an aqueous functional fluid composition typically varies from about 0.05 to 2 percent by weight.
  • the concentration of ferrous corrosion inhibitor is not critical.
  • the non-ferrous corrosion inhibitors are used primarily as metal deactivators to chelate copper, aluminum, zinc and their alloys. Such materials are well known in the art and individual compounds can be selected from the broad classes of materials useful for this purpose, such as the various triazoles and thiazoles, as well as the amine derivatives of salicylidenes. Representative specific examples of these metal deactivators are as follows: benzotriazole, tolytriazole, 2-mercaptobenzothiazole, sodium 2-mercaptobenzothiazole, and N,N'-disalicylidene-1,2-propanediamine.
  • Benzotriazole is a preferred non-ferrous corrosion inhibitor.
  • the aqueous concentrate concentration of the non-ferrous corrosion inhibitor may range from about 0.01 to 5 percent by weight.
  • the concentration in an aqueous functional fluid composition typically varies from about 0.1 to 2 percent by weight.
  • the concentration of non-ferrous corrosion inhibitor is not critical.
  • Amines are used to neutralize the acidity formed during working of the aqueous solution and present due to other acidic materials within the composition.
  • the type of amine corrosion inhibitor is not critical.
  • the amine also acts as a corrosion inhibitor.
  • Representative amine-type corrosion inhibitors are methylethanolamine, diethanolamime, triethanolamine, morpholine, N-methylmorpholine, N-ethylmorpholine, ethylenediamine, dimethylaminopropylamine, dimethylethanolamine, alpha-and gammapicoline, piperazene and isopropylaminoethyl.
  • Preferred amine corrosion inhibitors are morpholine and isopropylaminoethanol.
  • the amine concentration of an aqueous concentrate typically ranges from about 0.05 to 25 percent by weight.
  • the amine concentration in an aqueous functional fluid composition typically ranges from about 0.5 to 2 percent by weight.
  • the amine concentration, in accordance with this invention, is not critical.
  • biocides may be used to prevent microbial growth in these compostions.
  • Biocides are well known in the art and any effective biocides may be utilized. Examples include phenolic derivatives, such as 2-phenyl phenol, 2-chlorophenol and 2,2'-methylene-bis (4-chlorophenol); formaldehyde release agents, such as the triazines, hexahydro-1,3,5-triethyl-s-triazine and hexahydro-1,3,5-tris (2-hydroxy-ethyl)-s-triazine, the imidazoles, e.g., 1,3-di(hydroxymethyl)-5,5-dimethyl-2,4-dioxolmidazole; aliphatic derivatives, such as, 2-bromo-2-nitropropane-1,3-diol; organosulfur-nitrogen compounds, such as, the thiazoles, and 1,2-benzisothiazolin-3-one. These and other suitable
  • the biocide concentration typically ranges from about 0.05 to 5 percent by weight of the total weight of the aqueous concentrate.
  • Methods for preparing the water-based hydraulic and metalworking fluids of this invention are well-known in the art.
  • the basic procedure involves mixing the polyurethane and ethoxylated alcohol to form a thickener composition, followed by heating and adding the remaining components.
  • a non-aqueous concentrate of the thickener composition and additives is provided.
  • an aqueous concentrate is provided by employing a minor amount of water based on the weight of the total concentrate.
  • compositions of the invention are carried out using conventional equipment and at temperatures from room temperature to elevated temperatures, usually below 212°F., and often below 170°F.
  • the non-aqueous or aqueous concentrate at a high actives concentration is then diluted with water, wherein the total amount of water, used is in the amount required to provide the desired concentration of functional additives. This is often a convenient procedure, since the concentrate can be shipped to the point of use before the water is added. Thus, the cost of shipping all or a substantial amount of the water in the final water-based functional fluid composition is saved.
  • the functional fluid composition can be made directly or via a non-aqueous concentrate without going through the separate step of forming an aqueous concentrate.
  • the functional fluid compositions are easily formulated using distilled or deionized water, although tap water can also be used without adverse effects on fluid properties.
  • Typical ingredients of the aqueous concentrates of the invention are listed below: ⁇ he concentrates can be diluted to form fluid compositions prior to use, or if desired, the fluid compositions can be formed directly from the components.
  • Typical functional water-based hydraulic or metalworking fluid compositions in accordance with the teachings of this invention, may contain the components in the percentage ranges shown below.
  • the functional fluid compositions of this invention when formulated as above, are transparent liquids having an oil-like viscosity, which are stable over long periods of storage at ambient temperature. Additionally, the hydraulic and metalworking fluids of this invention are oil-free and will not support combustion in contrast to petroleum oils.
  • the fluids of this invention are ecologically clean and nonpolluting compositions when compared to existing petroleum-based hydraulic fluids.
  • the hydraulic fluids of the subject invention can be used in various applications requiring hydraulic pressures in the range of 20-2000 pounds per square inch, since they generally exhibit all the essential properties required such as lubricity, viscosity and corrosion protection.
  • the hydraulic fluids of this invention are suitable for use in various types of hydraulic systems and are especially useful in systems in which vane-type pumps or the axial-piston pumps are used. Such pumps are used in hydraulic systems where pressure is required for molding, clamping, pressing metals, actuating devices such as doors, elevators, and other machinery or for closing dies in die-casting machines and in injection molding equipment and other applications.
  • sample formulas as shown in Tables 2 and 3, were tested in glass containers for the following:
  • ethoxylated alcohols within the scope of this invention i.e., ethoxylated alcohols with particular HLB and ethoxylation ranges, in combination with polyurethane meet the objectives of this invention; whereas those outside the scope of this invention do not.
  • each ethoxylated alcohol of the mixture is nominally outside the scope of the desired HLB and/or ethoxylation values of the preferred ethoxylated alcohols.
  • Example 1 shows that an oleyl alcohol with about 2 moles of ethoxylation and an HLB of about 4.9 when combined with an oleyl alcohol with about 20 moles of ethoxylation and an HLB of about 15.3 yields similar properties to those alcohols within the scope of the invention as shown in Table 2, i.e., as if it were an ethoxylated alcohol selected from the group consisting of C s -C, 5 saturated alcohols with between about 5 and 20 moles of ethylene oxide per mole of alcohol and having an HLB between 11 and 14, and Cg-C 18 unsaturated alcohols with between about 5 and 20 moles of ethylene oxide per mole of alcohol and having an HLB between 11 and 14. Stability in solution, viscosity and shear stability are not, however, as satisfactory or desirable with compositions containing these mixtures as with compositions containing the preferred ethoxylated alcohols.
  • a test generally referred to as the Vickers Vane Pump Test is employed.
  • the apparatus used in this test is a hydraulic system which functions as follows: hydraulic fluid is drawn from a closed sump to the intake side of a Vickers V-104C-10 vane-type pump.
  • the pump is driven by, and directly coupled to, a 25 horsepower, 1740 rpm electric motor.
  • the fluid is discharged from the pump through a pressure regulating valve. From there it passes through a calibrated venturi (used to measure flow rate) and back to the sump. Cooling of the fluid is accomplished by a heat exchanger through which cold water is circulated. No external heat is required; the fluid temperature being raised by the frictional heat resulting from the pump's work on the fluid.
  • the Vickers V-104C-10 vane-type pump comprises a cylindrical enclosure (the pump body) in which there is housed a so-called "pump cartridge".
  • the "pump cartridge” assembly consists of front and rear circular, bronze bushings, a rotor, a cam-ring and rectangular vanes.
  • the bushings and cam-ring are supported by the body of the pump and the rotor is connected to a shaft which is turned by an electric motor.
  • a plurality of removable vanes are inserted into slots in the periphery of the rotor.
  • the cam-ring encircles the rotor and the rotor and vanes are enclosed by the cam-ring and bushings.
  • the inner surface of the cam-ring is cam-shaped. Turning the rotor results in a change in displacement of each cavity enclosed by the rotor, the cam-ring, two adjacent vanes and the bushings.
  • the body is ported to allow fluid to enter and leave the cavity as rotation occurs.
  • the Vickers Vane Pump Test procedure used herein specifically requires charging the system with 5 gallons of the test fluid and running at temperatures ranging from 100° to 135°F. at 750 to 1000 psi pump discharge pressure (load). Wear data were made by weighing the cam-ring and the vanes of the "pump cartridge" before and after the test. At the conclusion of the test run and upon diassembly for weighing, visual examination of the system was made for signs of deposits, varnish, corrosion, etc.
  • test sample was prepared and compared to a commercially prepared formulation.
  • test sample consists of:
  • the test sample was prepared by first heating Lubrizol 5603 to 130-150°F. and mixing in Triton X-45, Sipon ESY, and dimethyl ethanolamine to form an intermediate. Next, Brij 97, SCT-100, Cobratec 99 (benzotriazole), Lubrizol 5604, morpholine, and caprylic acid and other ingredients were mixed and heated to 150-160°F. Distilled water at 150°F. was added. The heat was cut and the intermediate added to this mixture and then cooled.
  • Comparative Example 1 is a commercially-available, water-thickened hydraulic fluid, Plurasafe P-1200 from the BASF Wyandotte Corporation. This proprietary composition was reported to have the following composition:
  • the Plurasafe P-1200 hydraulic fluid concentrate was diluted with nine parts of water to one part of concentrate prior to use.
  • test sample of this invention exhibited less wear (weight loss of ring and vanes) than the comparative example.

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US5368757A (en) * 1991-03-22 1994-11-29 Henkel Corporation Lubrication for cold forming of metals
WO1996024653A1 (fr) * 1995-02-07 1996-08-15 Henkel Corporation Lubrifiant aqueux et procede pour le formage a froid de metal, en particulier pour l'appointage de tubes metalliques a parois epaisses
DE102006035013A1 (de) * 2006-07-28 2008-01-31 Schülke & Mayr GmbH Systemreinigerkonzentrat
CN114214103A (zh) * 2021-12-22 2022-03-22 河北中煤神海科技发展有限公司 一种抗硬水润滑剂、液压支架用浓缩液及其制备方法

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EP1541643B1 (fr) * 2003-12-10 2013-03-13 Rohm And Haas Company Epaissisants associatifs non-ioniques contenant un squelette en polymère de condensation

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Publication number Priority date Publication date Assignee Title
EP0459282A2 (fr) * 1990-06-01 1991-12-04 Bayer Ag Fluides fonctionnels améliorés
EP0459282A3 (en) * 1990-06-01 1992-02-26 Bayer Ag Improved functional fluids
US5368757A (en) * 1991-03-22 1994-11-29 Henkel Corporation Lubrication for cold forming of metals
WO1996024653A1 (fr) * 1995-02-07 1996-08-15 Henkel Corporation Lubrifiant aqueux et procede pour le formage a froid de metal, en particulier pour l'appointage de tubes metalliques a parois epaisses
US5547595A (en) * 1995-02-07 1996-08-20 Henkel Corporation Aqueous lubricant and process for cold forming metal, particularly pointing thick-walled metal tubes
AU699076B2 (en) * 1995-02-07 1998-11-19 Henkel Corporation Aqueous lubricant and process for cold forming metal, particularly pointing thick-walled metal tubes
DE102006035013A1 (de) * 2006-07-28 2008-01-31 Schülke & Mayr GmbH Systemreinigerkonzentrat
CN114214103A (zh) * 2021-12-22 2022-03-22 河北中煤神海科技发展有限公司 一种抗硬水润滑剂、液压支架用浓缩液及其制备方法
CN114214103B (zh) * 2021-12-22 2022-09-13 河北中煤神海科技发展有限公司 一种抗硬水润滑剂、液压支架用浓缩液及其制备方法

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JPS63199291A (ja) 1988-08-17
AU8120687A (en) 1988-05-19
BR8706113A (pt) 1988-06-21
EP0267558A3 (fr) 1989-06-07

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