EP0137057A1 - Schmiermittelzusammensetzung für ein Transportband und Verfahren zur Anwendung - Google Patents

Schmiermittelzusammensetzung für ein Transportband und Verfahren zur Anwendung Download PDF

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Publication number
EP0137057A1
EP0137057A1 EP83109715A EP83109715A EP0137057A1 EP 0137057 A1 EP0137057 A1 EP 0137057A1 EP 83109715 A EP83109715 A EP 83109715A EP 83109715 A EP83109715 A EP 83109715A EP 0137057 A1 EP0137057 A1 EP 0137057A1
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EP
European Patent Office
Prior art keywords
phosphate ester
lubricant composition
alkyl groups
weight
formula
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.)
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Application number
EP83109715A
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English (en)
French (fr)
Inventor
Patricia Anne Anderson
Roger Graham Hagens
Dianne Margaret Roden
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.)
Diversey Wyandotte Inc
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Diversey Wyandotte Inc
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Publication date
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Publication of EP0137057A1 publication Critical patent/EP0137057A1/de
Withdrawn legal-status Critical Current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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/20—Compounds containing nitrogen
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/24—Compounds containing phosphorus, arsenic or antimony
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/04—Hydroxy compounds
    • C10M129/06—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/16—Ethers
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M133/08—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
    • C10M135/10—Sulfonic acids or derivatives thereof
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    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
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    • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
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    • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
    • C10M2201/083—Inorganic acids or salts thereof containing nitrogen nitrites
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/085—Phosphorus oxides, acids or salts
    • C—CHEMISTRY; METALLURGY
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/046—Hydroxy ethers
    • 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
    • C—CHEMISTRY; METALLURGY
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    • 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
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    • 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
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    • C10M2215/10—Amides of carbonic or haloformic acids
    • C10M2215/102—Ureas; Semicarbazides; Allophanates
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/26—Amines
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C—CHEMISTRY; METALLURGY
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    • 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
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    • C10M2223/04—Phosphate esters
    • C10M2223/042—Metal salts thereof
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
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    • C10M2223/04—Phosphate esters
    • C10M2223/043—Ammonium or amine salts thereof
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/30—Refrigerators lubricants or compressors lubricants
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    • C10N2040/32—Wires, ropes or cables lubricants
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    • C10N2040/38—Conveyors or chain belts
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    • C10N2040/42—Flashing oils or marking oils
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    • C10N2040/44—Super vacuum or supercritical use
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    • C10N2040/50—Medical uses
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01—Emulsions, colloids, or micelles

Definitions

  • the present invention relates generally to water-based lubricant compositions and a method of using such compositions. More particularly, the invention discloses aqueous compositions containing a long chain phosphate ester which are useful for the lubrication of continuously-moving conveyor systems, particularly conveyor systems used in the packaging of materials intended for human consumption.
  • Continuously-moving conveyor systems employed in food and beverage packaging operations require both cleansing and lubrication to insure that the systems function properly in moving items between packaging stations.
  • a clean and properly lubricated conveyor surface permits stoppage of the bottles during the filling and capping operations while the conveyor track continues to move underneath. If the track is not clean or does not have the proper lubricity, the containers may be knocked over or fail to stop moving, resulting both in bottle breakage and in disruption of the bottling line.
  • These cleansing and lubricating functions are customarily accomplished by circulating an aqueous dispersion or solution of a water-based material across the track surface.
  • Gafac GB520 is the partial sodium salt of a mixture of mono- and di-alkyl phosphate esters derived from an oleyl alcohol polyethoxylate having eight to nine ethoxy groups, together with 35 percent of unreacted oleyl alcohol ethoxylate, i.e.,
  • the mole ratio of phosphate diester to phosphate monoester in the Gafac GB520 material is greater than 3 to 1.
  • novel lubricants of the present invention are aqueous compositions, at least partially neutralized with a base, preferably comprising two active components.
  • the first of these active ingredients is a mono alkyl phosphate ester of the formula
  • the second of the active ingredients is a synergist taken from the group:
  • the lubricant compositions also contain minor amounts of di alkyl phosphate ester and phosphoric acid.
  • R and R are liner saturated primary alkyl groups, C 14 through C 18 , or linear partially unsaturated primary alkylene groups, C 16 through C 20 .
  • R and R can also comprise a mixture of saturated or unsaturated alkyl groups C12 through C 20 , having an average chain,length in the range C 13 through C 18 .
  • R is a mixture of saturated and unsaturated alkyl groups C 8 through C 18 having an average chain length C 12 through C 18 (i.e., products derived from fatty acids such as coco oil and tallow).
  • the value of m and n can be zero through three.
  • compositions employing phosphate monoesters as the sole active ingredient exhibit good lubricity
  • the use of an alcohol, an amine oxide, or a urea synergist with the phosphate ester greatly improves the performance of the lubricant composition, particularly in the area of durability.
  • other materials such as surfactants, can improve the lubricant formulations
  • excellent compositions can be prepared wherein the sole active components comprise a neutralized aqueous dispersion of a two-component system containing a monophosphate ester and one of the synergist compositions described above.
  • lubricant compositions exhibit excellent lubricity at concentrations as low as .01 percent.
  • concentrations i.e., .05 to .1 percent.
  • higher concentrations i.e., .05 to .1 percent
  • the phosphate esters of the present invention can be prepared in a conventional manner.
  • a C 14 - C 15 triethoxyphosphate was synthesized by react- i n g a C 14 - c 15 linear primary alcohol mixture ( N eodol R 45) with three moles of ethylene oxide and then phosphorylating the resultant ethoxylate with polyphosphoric acid at a temperatue of approximately 65-80° C.
  • the product comprised monophosphate ester, unreacted ethoxylated alcohol, phosphoric acid, and diester.
  • Other methods of obtaining phosphate esters are illustrated in the prior art, i.e., U.S. Patents 1,970,578, 2,174,271, 2,167,326 and 3,033,889.
  • diester product it is generally desirable to limit the formation of diester product in the reaction mixture.
  • the diesters are approximately twice the molecular weight of the monoesters and do not add to the system's lubricating properties.
  • the diester content should be kept to a minimum, preferably less than 15 percent of the active mono ester ingredient. This can be accomplished by employing an excess of phosphoric acid in the reaction. If desired, additional amounts of long-chain alcohol or alcohol ethoxylate can be added to the product after cooling.
  • compositions of the present invention typically contain free phosphoric acid as well as the acidic monophosphate ester
  • the lubricant compositions would have an undesirably low (acid) pH were they not partially neutralized.
  • neutralization results in better dispersibility of the compositions in water. Neutralization can be accomplished by the addition of any suitable base, but the use of NH 3 , NH 4 0H, or a basic aminofunctional material is generally preferred.
  • formulations having a basic pH can resist acidic beverage spills (e.g., beer) without any major deterioration in lubricity.
  • basic (pH 8.0 to 10.0) compositions are generally desirable where it is necessary to incorporate a sequestering agent in the lubricant to overcome problems resulting from water hardness.
  • the long chain saturated alkyl or partially unsaturated alkylene substituent groups of the phosphate esters may contain up to three ethoxy groups in the chain. The presence of these groups increases the dispersibility of the ester in water but at some sacrifice in lubricity. Therefore, while the lubricant performance of a typical monophosphate ester increases with the length of the alkyl chain, saturated alkyl groups longer than C 15 tend to be too insoluble to be easily formulated, absent some degree of ethoxylation. Increasing the ethylene oxide content increases solubility but reduces lubricating ability.
  • a preferred ester representing a compromise between lubricating performance and solubility (for saturated R groups) is the phosphate ester, where R is a 50:50 mixture of C14H29 -- and C 15 H 31 alkyl groups.
  • the performance of the lubricant compositions is improved by the presence of a free long-chain alcohol, a long-chain alcohol ethoxylate, a fatty-acid- derived amine oxide, or urea.
  • these additives provide no lubricity by themselves, their presence in the lubricating formulation serves as a synergist, improving both the lubricity and, in particular, the durability of the compositions. While even a minor amount of these additives serves to improve the properties of the lubricants, optimum results are obtained when the long-chain monoester/synergist ratio is in the range of 1:1.5 on a molar basis.
  • the alcohol can be the reactant precursor of the phosphate ester, and thus R and R' will be the same.
  • R and R' will be the same.
  • desirable lubricant compositions can be formulated utilizing various combinations of alcohol and phosphate ester which differ either in the length or in the nature (saturated/unsat- urated, ethoxylated/non-ethoxylated) of the linear long-chain substituant group.
  • the amine oxide synergist employed in certain species of the invention is an ethoxylated polyoxyethylene fatty amine, characteristically derived from a natural product such as coco oil, tallow, soybean oil, and the like.
  • Particularly useful compounds include bis(2-hydroxyethyl) cocoamine oxide and bis(2-hydroxyethyl) tallow amine oxide.
  • a sequesterant such as ethylene diamine tetra acetic acid (EDTA) in the lubricant composition renders the phosphate ester formulations resistant to the formation of insoluble precipitates when used in hard water formulations.
  • EDTA ethylene diamine tetra acetic acid
  • the phosphate-ester-containing lubricants are generally applied at very low levels of concentration, i.e., between about 1.0 X 10 and 3.0 X 10- 3 M, based on the monophosphate ester. It is therefore desirable to supply the lubricants in the form of liquid concentrates which can be further diluted with water prior to use.
  • Concentrates containing about 10 percent by weight of monophosphate ester can be formulated by blending the phosphate ester, synergist and other desired ingredients at elevated temperatures (30-50°C) in an isopro- panol/water mixture and neutralizing to a pH of 5.0-6.5 with a base.
  • Lower molecular weight phosphate esters so formulated will remain stable at room temperature. Higher molecular weight concentrates may solidify when cooled to ambient temperature, but can be re-liquified by heating to 30-40°C.
  • the concentrates are diluted prior to use, typically in the ratio one part concentrate to 100 to 200 parts water.
  • compositions are applied to the surface of moving conveyor systems so that the surface of the conveyor does not become dry. This may be accomplished by passing the conveyor through a dip or trough containing a dilute solution of the lubricant, by brushing or roller coating the lubricant composition on the surface of the conveyor, or by other conventional means.
  • the preferred method of application utilizes spray nozzles spaced along the conveyor track to ensure the proper degree of lubricity. No matter how the material is applied, it is important that the conveyor system remain consistently wet.
  • the lubricant compositions may be improved by use of surfactants and/or sequester- ants.
  • Preferred surfactants are long-chain anionic materials such as the sodium salt of sulfonated oleic acid.
  • a highly-dispersed suspension may form, giving the product a cloudy appearance.
  • the fine suspension may in time agglomerate and accumulate in the spray nozzles, causing them to block.
  • the use of a sequestering agent is desirable to control the hardness.
  • sequestering agents such as EDTA perform most efficiently at pH of 8.0 or more
  • the lubricity and durability of the lubricant compositions reported in the following examples was measured on a pilot test track, approximately 19 cm wide by 305 cm long.
  • the track a slat conveyor manufactured of 304 stainless steel, was operated at a speed of 40 cm/sec. Friction measurements were measured with a 0-5 pound precision load cell manufactured by Transducers, Inc. (Model C462). The output from the load cell was connected to a Sigma variable speed strip chart recorder, permitting measurements of coefficient of friction (u) vs. time.
  • a constant load consisting of eight filled bottles connected to the load cell by a loop of fine wire, was utilized in the experiments.
  • Lubricant compositions were applied in spurts to the test track with a feed pump, via a fan spray nozzle. The pump and nozzle could be adjusted to vary both the frequency of the spurts and the volume of material delivered. In each of the following examples a spurt rate of 36/minute and a solution volume of 32 mL/minute was employed.
  • the test was initiated by activating the feed pump and starting the test track and recorder in motion.
  • the measured coefficient of friction was observed to drop over a period of time to a constant equilibrium value ( ⁇ ), the value depending on the lubricity of the applied material. Because lubricity has an inverse relationship to friction, the lower the value of u, the better the lubricant.
  • the pilot test track was also used to measure the durability of the lubricant compositions. This was accomplished by replacing the intermittant stream of lubricant applied to the track with a constant stream of water. At the same time, a weighted fiberglass cloth (f5000 gms, width ⁇ 11 cm) was placed on the track to increase the wear rate. The time required for the coefficient of friction to increase from the lubricated equilibrium value to the original friction value represents the durability of the test lubricant. The greater the time, the better the durability.
  • the reported data for coefficients of friction represent measurements taken five minutes after the initial activation of the feed pump and test track to ensure that a constant equilibrium had been obtained. Immediately after making this measurement, the flow of lubricant was replaced with a water stream and the durability test was commenced.
  • a phosphated ester was prepared by reacting a C 12 to C 15 linear primary alcohol mixture with polyphosphoric acid at a temperature of approximately 72°C. Upon cooling the product was analyzed and found to contain 38.2 percent monoester, 11.5 percent H 3 PO 4 , 50.3 percent unreacted alcohol, and no measurable diester.
  • the phosphate ester was separated from the unreacted alcohol by dissolving approximately 25 g of the above product in 50 mL of warm isopropyl alcohol and stirring the mixture with heating until a clear solution was obtained.
  • the pH of the solution was adjusted to approximately 6.5 by the addition of concentrated NH 4 0H (dilute solutions should be avoided due to the ester's solubility in H 2 0). This resulted in the formation of a white precipitate which was digested at 40°C for 45 minutes.
  • the solution was cooled to 20°C, filtered through a buchner funnel, washed with cold IPA, and the precipitate dried.
  • a second sample of the phosphate ester/unreact- ed alcohol product of the first reaction was formulated into a lubricant without removal of the unreacted alcohol. This was accomplished by adding 25 g of material (38 parts ester: 50 parts alcohol) to 250 ml of a 10/90 IPA/H 2 0 solution, and heating the mixture to 35°C, with stirring. The p H of the dispersion was adjusted to 6.5 by the addition of diethanol amine (DEA), and then dil- luted with distilled water to form a 2.2 X 10 -3 M lubricant composition based on the phosphate ester. The composition was applied to the test track and its durability and lubricity measured and recorded. The results are set forth at Ex lB in Table I.
  • a commercially-available phosphated ester composition (Alkaphos-3, Alkaril Chemicals Ltd.), was formulated into a track lubricant composition. Analysis of the product as received revealed it to be a C 12 -C1 5 triethoxyphosphate and that its composition was 45 percent monoester, 10 percent phosphoric acid, 40 percent unreacted alcohol ethoxylate, and 5 percent diester.
  • a phosphated monoester was prepared from a C 14 C 15 linear primary alcohol mixture by following the procedure of Example 1. Analysis revealed the product to contain 41.8 percent monoester, 10.7 percent H 3 PO 4 , 47.5 percent unreacted alcohol, and no measurable diester. A portion of the product was dissolved in 30/70 IPA/H 2 O, neutralized to pH 6.5 with DEA, diluted to 2.2 X 10- 3 M in distilled water and tested on the pilot track. The results appear at Ex 3A of Table I.
  • Example 2 Another portion of the above product was treated so as to isolate the phosphate ester from the non- reacted alcohol in accordance with the separation step of Example 1.
  • the isolated, partially neutralized ester/ acid mixture was tested on the pilot track by itself (Ex 3B), and in combination with a number of long-chain alcohols and alcohol ethoxylates (Exs 3C-3H).
  • the C 14 -C 15 phosphate ester-containing lubricant was diluted to 2.2 X 10 -3 M, based on the ester content, prior to testing.
  • the reaction was carried out by charging the oleyl alcohol and a sodium hydroxide catalyst into an autoclave, heating the autoclave to 140° C, and gradually adding ethylene oxide gas. The pressure was maintained at 25 to 30 p.s.i. during the reaction.
  • the resultant oleyl alcohol diethoxylate was reacted with polyphosphoric acid by following the procedure of Example 1. Analysis revealed the product to be 42 percent phosphate monoester, 8 percent H 3 P0 4 , and 50 percent alcohol ethoxylate diester. A portion of the product was dissolved in 30/70 IPA/H20, neutralized to pH 6.5 with DEA, diluted to 2.2 X 10 -3 M in distilled water and tested on the pilot track. The results appear at Ex 3A of Table I.
  • Example 2 Another portion of the product was treated so as to isolate the phosphate ester from the alcohol in accordance with the separation step of Example 1.
  • the isolated, partially neutralized ester/acid mixture was tested on the pilot track by itself (Ex 4B), and in combination with a number of long-chain alcohols and alcohol ethoxylates (Exs 4C-4E).
  • the oleyl diethoxy phosphate-ester-containing lubricant was diluted to 2.2 X 10 -3 M based on the ester content, prior to testing.
  • a commercially-available partially neutralized ethoxylated oleyl alcohol ester composition (Gafac GB520, GAF, Inc.) was formulated into a track lubricant. Analysis of the product as received revealed the material to be an aqueous dispersion containing a long-chain phosphate diester, a long-chain phosphate monoester and free oleyl alcohol ethoxylate. The analysis showed the product to be partially neutralized with NaOH.
  • the degree of ethoxylation of the oleyl alcohol alkylene substituent was determined to be between 8 and 9, and the ratio of phosphate diester to phosphate monoester to be in excess of 4 to 1. Unreacted ethoxylated alcohol was found to constitute approximately 35 percent by weight of the solids ingredients.
  • the GB520 was formulated into a 2.2 X 10 -3 M track lubricant composition, based on the weight of the total ester.
  • the results of the pilot track test utilizing this material are reported at Ex 5 of Table 1.
  • the composition exhibited poor durability and lubricity.
  • a lubricant composition was formulated wherein a surfactant was added to improve the hard-water stability of the composition.
  • a phosphate ester of a C 14 -C 15 (EtO) 21 ⁇ 4 alcohol ethoxylate was prepared in accordance with the procedure of Example IV. Analysis revealed the product to be 72.5 percent monoester, 9 percent diester, 12 percent phosphoric acid, and 6.5 percent unreacted alcohol ethoxylate.
  • An anionic surfactant the sodium salt of sulfonated oleic acid, 50% active (Sulfonate OA5, Cities Service, Inc.) -- was added to the ester/alcohol blend in various amounts, the mixture neutralized to a pH of 6.5 with DEA, and the neutralized products dispersed in 150 ppm tap water to form track lubricants (2.2 X 10 -3 M, based on ester). The results are recorded at Exs 6A-6D in Table I.
  • Example VI The C 14 C 15 (OEt) 21 ⁇ 4 alcohol ethoxylate of Example VI was treated so as to isolate the mono-phosphate ester in accordance with the separation procedure of Example I. 7Ten Ten (10) grams of the monoester was dispersed in 75 grams of 2:13 IPA:H 2 0, and titrated with NH 4 0H to a pH of 6.0. Five (5) grams of Aromox C/12, bis(2-hydroxyethyl) cocoamine oxide (Armak Industrial Chemicals), was added to the above solution to form a concentrate, and the material dispersed in tap water (100:1) to form a track lubricant (2.2 X 10 -3 M, based on ester). The results are recorded at Ex 7 of Table I.
  • Example VI The C 14 C 15 (OEt) 21 ⁇ 4 alcohol ethoxylate of Example VI was treated so as to isolate the mono-phosphate ester in accordance with the separation procedure of Example I.
  • Ten (10) grams of the monoester was dispersed in 80 grams of 1:8 IPA:H 2 0 and titrated with NH 4 OH to a pH of 6.0.
  • a concentrate was formulated by dissolving 8 grams of urea in the above solution. The concentrate was diluted in distilled water (100:1) to form a track lubricant. The results are reported at EX 8A of Table I.
  • a second lubricant composition was prepared, as above, but employing a higher level of urea (20 grams). The results are recorded at Ex 8B of Table I.
  • Track lubricant compositions were prepared from concentrates having a range of pH from 8.0 through 11.0, and applied to the test track in the manner previously described. The lubricity and durability of these compositions are set forth in Table II.
  • the coefficient of friction (u) stays relatively constant with increase in pH, and that durability decreases with further increase in pH. In certain applications, i.e., where the lubricant is applied substantially constantly to the conveyor track, a relatively low-level of durability may be satisfactory.
  • the resistance of the lubricant compositions to acidic beverage spills such as those generally found in beer bottling halls was tested utilizing the formulation of Example X, partially neutralized with MEA and thereafter diluted with soft water (250:1) to a pH of 7.8.
  • the effect of a beer spill was determined by applying a supplemental spray of beer (pH 4.1) to the track in the same manner as the water spray in the preceeding water-dilution step, but at a rate of 55 mL/minute.

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EP0293820A2 (de) * 1987-06-01 1988-12-07 HENKEL CORPORATION (a Delaware Corp.) Schmiermittel und Oberflächenkonditionierer für geformte Metalloberflächen
EP0359145A1 (de) * 1988-09-16 1990-03-21 Henkel Kommanditgesellschaft auf Aktien Klarwasserlösliche seifenfreie Schmiermittelzubereitung
GB2241963A (en) * 1990-03-13 1991-09-18 Henkel Corp Compositions and processes for conditioning the surface of formed metal articles
US5279677A (en) * 1991-06-17 1994-01-18 Coral International, Inc. Rinse aid for metal surfaces
US5286300A (en) * 1991-02-13 1994-02-15 Man-Gill Chemical Company Rinse aid and lubricant
GB2285630A (en) * 1994-01-12 1995-07-19 Diversey Corp Aqueous lubricant compositions for conveyor tracks
WO1996000767A1 (en) * 1994-06-28 1996-01-11 Ecolab Inc. Thermoplastic compatible lubricant for plastic conveyor systems
WO2000042137A2 (en) * 1999-01-15 2000-07-20 Ecolab Inc. Antimicrobial, high load bearing conveyor lubricant
US6247478B1 (en) 1996-11-15 2001-06-19 Ecolab Inc. Cleaning method for polyethylene terephthalate containers
US6554005B1 (en) 1996-11-15 2003-04-29 Ecolab Inc. Cleaning method for polyethylene terephthalate containers
US6855676B2 (en) 2002-02-11 2005-02-15 Ecolab., Inc. Lubricant for conveyor system
US6967189B2 (en) 2002-11-27 2005-11-22 Ecolab Inc. Buffered lubricant for conveyor system
US7718587B2 (en) 2004-04-26 2010-05-18 Lynx Enterprises, Inc. Composition and method for lubricating conveyor track

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US4719149A (en) * 1986-02-28 1988-01-12 Minnesota Mining And Manufacturing Company Method for priming hard tissue
US4919833A (en) * 1987-05-21 1990-04-24 Ciba-Geigy Corporation Functional fluids
US5062978A (en) 1988-12-05 1991-11-05 Unilever Patent Holdings Bv Aqueous lubricant solutions based on fatty alkyl amines

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US3404090A (en) * 1967-02-14 1968-10-01 Armour & Co Water base lubricant
US3574100A (en) * 1968-01-10 1971-04-06 Cowles Chem Co Water-soluble lubricating agents for continuously moving conveyor systems
DE2313330A1 (de) * 1972-03-20 1973-10-04 Basf Wyandotte Corp Verbesserte foerderanlagen-schmiermittel auf seifenbasis

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FR1426694A (fr) * 1964-03-20 1966-01-28 Socony Mobil Oil Co Composition lubrifiante, inhibitrice de la corrosion, contenant comme additif un produit de réaction d'une amine et d'un ester phosphorique
US3404090A (en) * 1967-02-14 1968-10-01 Armour & Co Water base lubricant
US3574100A (en) * 1968-01-10 1971-04-06 Cowles Chem Co Water-soluble lubricating agents for continuously moving conveyor systems
DE2313330A1 (de) * 1972-03-20 1973-10-04 Basf Wyandotte Corp Verbesserte foerderanlagen-schmiermittel auf seifenbasis

Cited By (26)

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Publication number Priority date Publication date Assignee Title
EP0293820A3 (en) * 1987-06-01 1989-04-26 Amchem Products, Inc. Lubricant and surface conditioner for formed metal surfaces
US4859351A (en) * 1987-06-01 1989-08-22 Henkel Corporation Lubricant and surface conditioner for formed metal surfaces
EP0293820A2 (de) * 1987-06-01 1988-12-07 HENKEL CORPORATION (a Delaware Corp.) Schmiermittel und Oberflächenkonditionierer für geformte Metalloberflächen
EP0542378A3 (en) * 1987-06-01 1993-11-18 Henkel Corp Process for the production of aluminum cans
EP0542378A2 (de) * 1987-06-01 1993-05-19 Henkel Corporation Verfahren zur Produktion von Aluminiumdosen
US5062979A (en) * 1988-09-16 1991-11-05 Ecolab Inc. Soap free conveyor lubricant that gives clear solutions in water comprising alkoxyphosphate ester, alkyl benzene sulfonate and carboxylic acid
EP0359145A1 (de) * 1988-09-16 1990-03-21 Henkel Kommanditgesellschaft auf Aktien Klarwasserlösliche seifenfreie Schmiermittelzubereitung
GB2241963B (en) * 1990-03-13 1994-09-28 Henkel Corp Conditioning the surface of formed metal articles
WO1991014014A3 (en) * 1990-03-13 1991-10-31 Henkel Corp Process and composition for treating aluminium
WO1991014014A2 (en) * 1990-03-13 1991-09-19 Henkel Corporation Process and composition for treating aluminium
GB2241963A (en) * 1990-03-13 1991-09-18 Henkel Corp Compositions and processes for conditioning the surface of formed metal articles
EP0643127A2 (de) * 1990-03-13 1995-03-15 Henkel Corporation Oberflächenkonditionierung von geformten Aluminiumgegenständen
EP0643127A3 (de) * 1990-03-13 1995-05-17 Henkel Corp Oberflächenkonditionierung von geformten Aluminiumgegenständen.
US5286300A (en) * 1991-02-13 1994-02-15 Man-Gill Chemical Company Rinse aid and lubricant
US5279677A (en) * 1991-06-17 1994-01-18 Coral International, Inc. Rinse aid for metal surfaces
GB2285630A (en) * 1994-01-12 1995-07-19 Diversey Corp Aqueous lubricant compositions for conveyor tracks
WO1996000767A1 (en) * 1994-06-28 1996-01-11 Ecolab Inc. Thermoplastic compatible lubricant for plastic conveyor systems
US5559087A (en) * 1994-06-28 1996-09-24 Ecolab Inc. Thermoplastic compatible lubricant for plastic conveyor systems
US6247478B1 (en) 1996-11-15 2001-06-19 Ecolab Inc. Cleaning method for polyethylene terephthalate containers
US6554005B1 (en) 1996-11-15 2003-04-29 Ecolab Inc. Cleaning method for polyethylene terephthalate containers
WO2000042137A2 (en) * 1999-01-15 2000-07-20 Ecolab Inc. Antimicrobial, high load bearing conveyor lubricant
WO2000042137A3 (en) * 1999-01-15 2000-11-30 Ecolab Inc Antimicrobial, high load bearing conveyor lubricant
US6855676B2 (en) 2002-02-11 2005-02-15 Ecolab., Inc. Lubricant for conveyor system
US7125827B2 (en) 2002-02-11 2006-10-24 Ecolab Inc. Lubricant composition having a fatty acid, a polyalkylene glycol polymer, and an anionic surfactant, wherein the lubricant is for a conveyor system
US6967189B2 (en) 2002-11-27 2005-11-22 Ecolab Inc. Buffered lubricant for conveyor system
US7718587B2 (en) 2004-04-26 2010-05-18 Lynx Enterprises, Inc. Composition and method for lubricating conveyor track

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CA1205793A (en) 1986-06-10

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