WO2007112917A2 - Lubricant composition - Google Patents

Lubricant composition Download PDF

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Publication number
WO2007112917A2
WO2007112917A2 PCT/EP2007/002772 EP2007002772W WO2007112917A2 WO 2007112917 A2 WO2007112917 A2 WO 2007112917A2 EP 2007002772 W EP2007002772 W EP 2007002772W WO 2007112917 A2 WO2007112917 A2 WO 2007112917A2
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WO
WIPO (PCT)
Prior art keywords
alkyl
composition according
aqueous lubricant
lubricant composition
formula
Prior art date
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PCT/EP2007/002772
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English (en)
French (fr)
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WO2007112917A3 (en
Inventor
Melanie Vierbaum
Ben De Rijk
Hamke Meijer
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Kao Chemicals Gmbh
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Publication date
Application filed by Kao Chemicals Gmbh filed Critical Kao Chemicals Gmbh
Priority to US12/225,234 priority Critical patent/US20100286009A1/en
Priority to CA002645226A priority patent/CA2645226A1/en
Priority to JP2009501948A priority patent/JP5465004B2/ja
Priority to EP07723716A priority patent/EP2024472A2/de
Priority to BRPI0708839-6A priority patent/BRPI0708839A2/pt
Priority to AU2007234025A priority patent/AU2007234025B2/en
Publication of WO2007112917A2 publication Critical patent/WO2007112917A2/en
Publication of WO2007112917A3 publication Critical patent/WO2007112917A3/en

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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00Lubricating compositions containing more than 10% water
    • C10M173/02Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • C10M173/025Lubricating compositions containing more than 10% water not containing mineral or fatty oils for lubricating conveyor belts
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00Lubricating compositions containing more than 10% water
    • C10M173/02Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02Hydroxy compounds
    • C10M2207/021Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/122Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/124Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms containing hydroxy groups; Ethers thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125Carboxylix 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
    • C10M2207/126Carboxylix 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 monocarboxylic
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125Carboxylix 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
    • C10M2207/128Carboxylix 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 containing hydroxy groups; Ethers thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04Phosphate esters
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04Phosphate esters
    • C10M2223/042Metal salts thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04Phosphate esters
    • C10M2223/043Ammonium or amine salts thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00Metal present as such or in compounds
    • C10N2010/02Groups 1 or 11
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/38Conveyors or chain belts

Definitions

  • the present invention refers to lubricant compositions, said lubricant compositions being particularly preferred for conveyor systems, especially in the foodstuff industry, which are suitable for lubricating, cleaning and disinfecting of the transport chains. More specifically, the invention refers to the use of these compositions as lubricants, particularly in conveyor systems for glass and/or plastic bottles, such as polyethylen terepthalate (PET) or polycarbonate (PC); cans, glass containers, drums, cardboard containers and similar items .
  • PET polyethylen terepthalate
  • PC polycarbonate
  • articulated plate conveyor belts or other transport systems are used. Said systems are maintained lubricated to reduce the mechanical strength of the bottles and containers, and cleaned to remove dirt and to avoid contamination by micro-organisms, with the aid of appropriate aqueous lubricating agents, preferentially applied with automatic lubrication systems for conveyor belts or other transport systems, equipped with a sprayer system.
  • soap-based lubricants based on inorganic or organic alkaline salts of a fatty acid or a mixture of fatty acids that contain a minimum of 8 carbon atoms
  • soap-based lubricants based on inorganic or organic alkaline salts of a fatty acid or a mixture of fatty acids that contain a minimum of 8 carbon atoms
  • soap-based lubricants present several disadvantages : - To complex the water hardness the lubricants must contain the corresponding amounts of ethylendiami- notetraacetic or nitrylotriacetic acid. This prevents the formation of calcium salts that can block the nozzle of the lubrication system.
  • EDTA ethylendiaminotetraacetic acid
  • soap-based lubricants have been increasingly replaced by lubricants based on fatty amines and/or diamines, or lubricants based on phosphoric esters.
  • alkyl ether carboxylic acids or carboxylates have also been used in lubricant compositions for conveyor systems either alone or in combination with other chemicals.
  • EP-A-0044458 describes mainly soap free lubricants adapted for use as conveyor belt lubricants that consist of : a) a non ionic carboxylate compound of general formula
  • DE-A-4244536 describes lubricant compositions for bottle conveyor belts that contain an N-alkyldiamine, its salt obtained with an organic acid and, optionally, an organic acid and an ether carboxylate of formula
  • DE-A-19642598 describes a lubricant concentrate for conveyor belt installations in the food industry, based on amines comprised by: i) one or more amines, ii) one or more ether carboxylates, iii) one or more polyethyleneglycols and iv) up to 99% in weight of the usual additives and adjuvants.
  • the ether carboxylates described are compounds of general formula R- ( O ( CH 2 ) m ) n 0CH 2 C0O " M + wherein
  • R is selected from the group consisting of a saturated, linear or branched C1-C22 alkyl rest, a mono or polyunsaturated, linear or branched, alkenyl or alkynyl rest with 2 to 22 carbon atoms and a mono or poly C1-C22 alkyl or C 2 -C 2 2 alkenyl or alkynyl substituted aryl rest; m is 2 or 3; n is a positive number in the range of 1 to 30, and M is hydrogen or an alkali metal.
  • US-A-5062979 describes an aqueous, optically clear, substantially soap free lubricant composition having a pH value in the range from 6 to 8 , comprising water and:
  • alkyl benzene sulfonate molecules containing 10 to 18 carbon atoms in the alkyl part and having cations that are selected from the group consisting of alkali metal ions, ammonium ions and alkanolammonium ions containing 1 to about 14 carbon atoms in the alkanolamine part;
  • R 1 -CM-CH 2 -CH(R 2 ) -O) n -PO 3 X in which R 1 is selected from the group consisting of aliphatic monovalent hydrocarbon radicals containing about 12 to about 18 carbon atoms, R 2 is H or CH 3 , X is hydrogen or an alkali metal, and n is an integer in the range of about 8 to about 12 ; and
  • component (d) conventional solubilizers, solvents, foam inhibitors, disinfectants, or mixtures thereof, component (a) and component (b) being present in a ratio by- weight of about 3:1 to about 1:3 and component (c) being present in a ratio by weight to the sum of components (a) and (b) of from about 1:20 to about 1:4.
  • DE-A-19846991 describes a chain lubricant for conveyor and transport systems comprising water, a surfactant selected from the group consisting of a) a monoalkyl-polyalkyleneglycol ether carboxylic acid of the following formula
  • R 1 (OC 2 H 4 ) m (OC 3 H 6 ) n 0- (CH 2 ) P CHR 2 C (0) OR 3
  • R 1 is a saturated linear or branched Cx-C ⁇ -alkyl radical, a mono- or polyunsaturated linear or branched alkenyl or alkynyl radical with 2 to 22 carbon atoms or an aryl radical optionally substituted one or more times by C],-C 22 -alkyl or alkenyl or alkynyl groups
  • m is a number in the range of 0 to 30
  • n is a number in the range of 0 to 30
  • p is a number in the range of 1 to 4
  • R 2 is a hydroxy1 group or a hydrogen and R 3 is hydrogen, a methyl group or an alkali metal
  • R 4 -C 6 H 6 -SO 3 M (II) wherein R4 is a saturated linear or branched Ci-C 22 - alkyl radical or a mono- or poly-unsaturated linear or branched alkenyl or alkynyl radical with 2 to 22 carbon atoms and M is hydrogen or an alkali metal; c) a monoalkyl-polyalkyleneglycol phosphoric acid mono or diester of the general formula
  • R 5 is a saturated linear or branched C x -C 22 -alkyl radical, a mono- or polyunsaturated linear or branched alkenyl or alkynyl radical with 2 to 22 carbon atoms or an aryl radical optionally substituted one or more times by Ci-C 22 -alkyl or alkenyl or alkynyl groups;
  • q is a number in the range of 0 to 30;
  • r is a number in the range of 0 to 30;
  • s is 1 or 2;
  • R 6 is hydroxyl if s is 1 and, if s is 2, R 6 is not present; and d) mixtures thereof; and disinfection agents, as well as adjuvant and additive materials, wherein said disinfection agent comprises chlorine dioxide.
  • ES-A-2206052 describes the use as a lubricant of ether carboxylates of formula
  • R- (OCH 2 CH 2 ) n -O-CH 2 COOX wherein R is an alkyl , alkenyl or alkynyl residue containing from 12 to 22 carbon atoms; n is a number between 0.3 and 15; X is hydrogen, an alkaline metal, an ammonium cation or an hydroxyalkylammonium cation.
  • ES-A-2206052 the described ether carboxylates can be specifically used in conveyor systems.
  • EP-A-1652909 describes a corrosion inhibiting agent for functional fluids, which are liquids used as lubricants, abrasives, coolers for the metal working industry, particularly hydraulic fluids (HF or HFA) .
  • EP-A-1652909 describes in Tables 1-3 water-mixable concentrates, which can be used as corrosion inhibiting agents.
  • Example 3 and Comparative Example C of EP-A-1652909 describe water-mixable concentrates comprising a fatty alcohol polyglycolether (3.6 wt.%), an oleic ether (5 EO) carboxylic acid (1.8 wt.%), tall oil fatty acid (0.8 wt.%) and 2-ethylhexyl phosphoric acid (2,0 wt.%).
  • compositions may present lubricant properties
  • the disclosure of a fatty alcohol polyglycolether does not disclose a C 6 -C 2 2 fatty alcohol, optionally ethoxylated with 1 to 20 moles of ethylene oxide, as claimed in the present invention.
  • US-A-4895668 describes an aqueous lubricant composition, which comprises one or more carboxylated surfactants and one or more non-carboxylated surfactants in combination with a soap lubricant.
  • Table 2 of US-A-4895668 describe lubricant compositions comprising nonyl phenol ethoxylated with 9 moles of ethylene oxide (5.0 wt.%), a sodium oleic ether (5 EO) carboxylate (5.0 wt.%), and tall oil fatty acid (20.0 wt.%) US-A-4895668 fails to disclose the phosphoric acid esters according to the present invention.
  • nonyl phenol ethoxylated does not anticipate a C 6 -C 22 fatty alcohol, optionally ethoxylated with 1 to 20 moles of ethylene oxide, as claimed in the present invention.
  • lubricant properties of the compositions described in US-A-4895668 are not appropriate for both glass bottles and for PET bottles.
  • Fatty amines and/or diamines are chemicals of environmental concern. In order to protect the environment and human health, chemicals are tested and classified according to their potential hazard. An important criterion is the classification into Water Hazard Classes of the Federal Environmental Agency of Germany (Umweltbundetics ) . Three Water Hazard Classes (WGK) are defined:
  • oleyl diamine N-Oleyl-1 , 3 -diaminopropane
  • Water Hazard Class 3 One of the more commonly used diamines in conveyor systems, oleyl diamine (N-Oleyl-1 , 3 -diaminopropane) has been classified as a chemical of severe hazard to water (Water Hazard Class 3)
  • phosphoric esters present stability- problems (2 phases formation) when they are diluted from a concentrated composition and are sensitive to water hardness. Furthermore, phosphoric esters alone do not show sufficient lubricity in conveyor systems for plastic bottles, such as polyethylen terepthalate (PET) or polycarbonate (PC) .
  • PET polyethylen terepthalate
  • PC polycarbonate
  • the present invention offers an efficient solution to the problems encountered in the prior art, by providing a lubricant composition comprising the following elements, a) one or more phosphoric acid esters of formula (I)
  • R 1 represents a linear or branched, saturated or unsaturated C 6 -C 2 2 alkyl and/or alkenyl group, or a R 3 (OCH 2 CH 2 ) m group
  • R 2 represents hydrogen, a linear or branched, saturated or unsaturated C 6 -C 22 alkyl and/or alkenyl group, or a R 3 (OCH 2 CH 2 ) m group
  • - R 3 represents hydrogen or a linear or branched, saturated or unsaturated C 6 -C 22 alkyl and/or alkenyl group
  • m represents a number of from 1 to 15;
  • Z represents hydrogen or an appropriate cation b) one or more ether carboxylates of formula (II)
  • R represents a linear or branched, saturated or unsaturated C 6 -C 22 alkyl and/or alkenyl group
  • n represents a number of from 0.5 to 20
  • M represents hydrogen or an appropriate cation, selected from the group consisting of an alkali metal, an alkaline earth metal, ammonium, an alkylammonium, an alkanolammonium or a glucammonium; and e) water; and c) one or more C 6 -C 22 fatty acids, optionally ethoxylated with 1 to 20 moles of ethylene oxide; and/or d) one or more C 6 -C 22 fatty alcohols, optionally ethoxylated with 1 to 20 moles of ethylene oxide wherein the weight ratio of component (a) to component
  • (b) is in the range of 9:1 to 1:3, preferably in the range of 5:1 to 1:3, more preferably in the range of 2:1 to 1:2.
  • the subject matter of the present invention both includes concentrated aqueous lubricant compositions and diluted aqueous lubricant compositions obtained by diluting the previous lubricant compositions.
  • the present invention also provides a method for lubricating conveyor systems consisting of applying an aqueous lubricant diluted composition according to the invention to a conveyor system continuosly or at intervals.
  • the present invention also provides the use of the lubricant compositions for lubricanting conveyor systems.
  • the phosphoric acid esters according to the invention may be prepared by reacting in aqueous media C 6 -C 2 2 fatty alcohols with phosphorous pentoxide (P2O 5 ) .
  • the C 6 -C 22 fatty alcohols are preferably derived from natural fat and oil as well as synthetic origin.
  • Preferred fats and oils include palm oil, coconut oil, sunflower oil, rapeseed oil, castor oil, olive oil, soybean oil; and animal fat such as tallow, bone oil; fish oil, hardened oils and semihardened oils thereof; and mixtures thereof.
  • the C 6 -C 22 fatty alcohols that react with the phosphorous pentoxide (P 2 O 5 ) may contain a great variety of alkyl and/or alkenyl groups, said groups being linear or branched, saturated or unsaturated.
  • C 6 -C 22 fatty alcohols are derived from coconut oil, palm oil and olive oil. It is particularly preferred that the C 6 -C 22 fatty alcohols to be reacted with the phosphoric acid esters are derived from olive oil.
  • the phosphoric acid esters obtained by reacting in C 6 -C 22 fatty alcohols with phosphorous pentoxide (P 2 O 5 ) are a mixture of phosphoric mono-esters (mono-alkyl esters) and phosphoric di-esters (di-alkyl esters) and the products obtained and the reaction are well known to the skilled person (O'Lenick et al . , Soap Cosmetics and Chemical Specialities, July 1986, p. 26.)
  • the weight ratio phosphoric mono-esters to phosphoric di-esters is from 50:50 to 95:5, more preferred from 55:45 to 90:10.
  • Z represents hydrogen or an appropriate cation, said cation preferably being selected from the group consisting of an alkali metal, an alkaline earth metal, ammonium, an alkylammonium, an alkanolammonium or a glucammonium. It is further preferred that Z represents hydrogen or an alkali metal, preferably lithium, sodium or potassium.
  • the C 16 -Ci 8 proportion in the alkyl and/or alkenyl groups of the phosphoric acid esters is higher than 70%, preferably higher than 80%, even more preferably higher than 85%.
  • the C 6 -C 22 fatty alcohols are ethoxylated, having an average ethoxylation degree from 1 to 10, preferably from 2 to 8.
  • Examples of commercially available phosphoric acid esters are FOSFODET ® 20 M (potassium salt of phosphoric ester of lauric alcohol, mono-ester to di-ester ratio 80:20); FOSFODET ® 20 D (potassium salt of phosphoric ester of lauric alcohol, mono-ester to di-ester ratio 50:50), FOSFODET ® 8050 (phosphoric ester of hydrogenated tallow, mono-ester to di- ester ratio 60:40), FOSFODET ® FJZ 903 (phosphoric ester of ethoxylated (3 EO) oleyl alcohol, mono-ester to di-ester ratio 55:45), all marketed by KAO Chemicals Europe.
  • Ether carboxylates of formula (II) are products well known in the art. They are usually obtained by alkoxylation and subsequent carboxytnethylation of fatty alcohols as described by Meijer and Smid in Polyether Carboxylates; Anionic Surfactants; Surfactant Sciencie Series, Vol. 56 (p. 313-361), edited by Helmut W. Stache, ISBN: 0-8247-9394-3.
  • the process is divided into two steps .
  • the first one is the alkoxylation of alcohols under standard conditions known by the skilled in the art.
  • the polyoxyethylene group is obtained by addition of ethylene oxide to fatty alcohols, mostly with an alkaline catalyst such as NaOH, KOH or NaOCH 3 , giving a broad polyoxyethylene oxide distribution (broad ethoxylation degree) .
  • an alkaline catalyst such as NaOH, KOH or NaOCH 3
  • the ethoxylation can be catalyzed by Lewis acids or by using metallic Na or NaH to achieve a narrow range distribution (narrow ethoxylation degree) .
  • the ethoxylated alcohols are reacted with a strong base, like sodium or potassium hydroxide, in presence of a reducing agent, i.e. sodium borohydride, to obtain the corresponding alkoxylate, which is carboxymethylated with sodium monochloroacetate (SMCA) .
  • a strong base like sodium or potassium hydroxide
  • a reducing agent i.e. sodium borohydride
  • the ether carboxylates of formula (II) are derived from C 6 -C 22 fatty alcohols, which are preferably derived from natural fat and oil as well as synthetic origin.
  • Preferred fats and oils include palm oil, coconut oil, sunflower oil, rapeseed oil, castor oil, olive oil, soybean oil; and animal fat such as tallow, bone oil; fish oil, hardened oils and semihardened oils thereof; and mixtures thereof.
  • the C 6 -C 22 fatty alcohols that are alkoxylated and subsequently carboxymethylated may contain a great variety of alkyl and/or alkenyl groups, said groups being linear or branched, saturated or unsaturated.
  • C 6 -C 22 fatty alcohols are derived from coconut oil, palm oil and olive oil. It is particularly preferred that the C 6 -C 22 fatty alcohols that are alkoxylated and subsequently carboxymethylated are derived from olive oil.
  • n has a value in the range of 1 to 10, preferably in the range of 1 to 7, and M is hydrogen, sodium or potassium.
  • the Ci 6 -C 18 proportion is higher than 80%, more preferred higher than 80%, even more preferred higher than 85%.
  • ether carboxylates of formula (II) are AKYPO ® RO 10 VG (Oleic ether carboxylic acid with an average ethoxylation degree of 1) , AKYPO ® RO 20 VG (Oleic ether carboxylic acid with an average ethoxylation degree of 2) , AKYPO ® RO 50 VG (Oleic ether carboxylic acid with an average ethoxylation degree of 5) , and AKYPO ® RO 90 VG (Oleic ether carboxylic acid with an average ethoxylation degree of 9), all marketed by KAO Chemicals Europe.
  • the C 6 -C 22 fatty acids can be selected from natural and/or synthetic origin. Accordingly, natural fatty acids may also be used in addition to synthetic fatty acids. The natural acids do not normally occur in pure form and are therefore preferably used for the purposes of the invention in the form of mixtures, which may be obtained from a variety of natural sources.
  • the fatty acids are preferably selected from hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, 9-hexadecenoic acid, 9 , 12-octadecadienoic acid, 9, 12 , 15-octadecatrienoic acid, 5, 8, 11, 14-eicosatetraenoic acid, 4,8,12,15,19- docosapentaenoic acid, sperm oil acid, coconut oil acid, oleic acid, tall oil acid, sunflower oil acid, linseed oil acid, and/or rapeseed oil acid.
  • the C 6 -C 22 fatty acids are optionally ethoxylated with 1 to 20 moles of ethylene oxide, preferably with 1 to 10 moles of ethylene oxide.
  • Ci 6 -C 18 proportion in the fatty acids according to the invention is higher than 70%, preferably higher than 80%, even more preferably higher than 85%.
  • Fatty alcohols are aliphatic alcohols derived from natural fats and oils. Due to their amphipathic nature, fatty alcohols behave as nonionic surfactants. They find use as emulsifiers, emollients and thickeners in cosmetics and food industry.
  • Fatty alcohols are a common component of waxes, mostly as esters with fatty acids but also as alcohols themselves.
  • C 5 -C 22 fatty alcohols examples include capryl alcohol (1-octanol), pelargonic alcohol (1-nonanol), capric alcohol (1-decanol) , lauryl alcohol (1-dodecanol) , myristyl alcohol (1-tetradecanol) , cetyl alcohol (1-hexadecanol) , palmitoleyl alcohol (cis-9-hexadecan-l-ol) , stearyl alcohol (1- octadecanol) , isostearyl alcohol (16-methylheptadecan-l-ol ) , elaidyl alcohol (9E-octadecen-l-ol) , oleyl alcohol (cis-9- octadecen-1-ol ) , linoleyl alcohol (9Z, 12Z-octadecadien-l- ol) , elaidolinoleyl alcohol (9
  • the C 6 -C 22 fatty alcohols are optionally ethoxylated with 1 to 20 moles of ethylene oxide, preferably with 1 to 10 moles of ethylene oxide.
  • Ci 6 -Ci 8 proportion in the fatty alcohols according to the invention is higher than 70%, preferably higher than 80%, even more preferably higher than 85%.
  • the lubricant composition according to the invention comprises the following elements, a) one or more phosphoric acid esters of formula (I)
  • R 1 represents a linear or branched, saturated or unsaturated C 6 -C 22 alkyl and/or alkenyl group, or a
  • R 2 represents hydrogen, a linear or branched, saturated or unsaturated C 6 -C 22 alkyl and/or alkenyl group, or a R 3 (OCH 2 CH 2 ) m group;
  • R 3 represents a linear or branched, saturated or unsaturated C 6 -C 22 alkyl and/or alkenyl group; m represents a number of from 1 to 15; and
  • Z represents hydrogen or an appropriate cation b) one or more ether carboxylates of formula (II)
  • R represents a linear or branched, saturated or unsaturated C 6 -C 22 alkyl and/or alkenyl group
  • n represents a number of from 0.5 to 20
  • M represents hydrogen or an appropriate cation, selected from the group consisting of an alkali metal, an alkaline earth metal, ammonium, an alkylammonium, an alkanolammonium or a glucammonium; and c) one or more C 6 -C 22 fatty acids, optionally ethoxylated with 1 to 20 moles of ethylene oxide; and d) one or more C 6 -C 22 fatty alcohols, optionally ethoxylated with 1 to 20 moles of ethylene oxide e) water; and wherein the weight ratio of component (a) to component (b) is in the range of 9:1 to 1:3, preferably in the range of 5:1 to 1:3, more preferably in the range of 2:1 to 1:2.
  • the subject matter of the present invention also includes an aqueous lubricant concentrated composition
  • aqueous lubricant concentrated composition comprising, expressed as weight percentage, a) 10-85% of the phosphoric acid esters of formula (I) b) 5-60% of the ether carboxylates of formula (II) c) 0.1-30% of the fatty acids d) 0.1-30% of the fatty alcohols e) water add up to 100%.
  • the ether carboxylates of formula (II) are a mixture of
  • C 12 -Ci 8 alkyl and/or alkenyl ether carboxylates having an average ethoxylation degree from 1 to 10, preferably from 1 to 7.
  • the aqueous lubricant concentrated composition according to the invention comprises, expressed as weight percentage, a) 15-55% of the phosphoric acid esters of formula (I) b x ) 5-20% of C 6 -C 10 alkyl and/or alkenyl ether carboxylates having an average ethoxylation degree from 2 to 8 b 2 ) 10-45% of C 12 -C 18 alkyl and/or alkenyl ether carboxylates having an average ethoxylation degree from 1 to 10 c) 1-20% of the fatty acids d) 1-20% of the fatty alcohols e) water add up to 100%.
  • the weight ratio of the Ci 2 -Ci 8 alkyl and/or alkenyl ether carboxylates to the C 6 -Ci 0 alkyl and/or alkenyl ether carboxylates in the aqueous lubricant concentrated composition according to the invention is in the range of 8:1 to 1:5, preferably in the range of 5:1 to 1:2.
  • the active matter content of the aqueous lubricant concentrated composition according to the invention is preferably at least 30% by weight, more preferably at least 50% by weight, even more preferably at least 65% by weight, the active matter of the composition is substantially provided by components (a) , (b) , (c) and (d) .
  • an aqueous lubricant diluted composition can be obtained by diluting an aqueous lubricant concentrated composition as described before by a factor of 2 to 10000 by volume, preferably from 5 to 1000. Said dilution can be done directly in one step or through intermediate partially diluted compositions, i.e. starting from a concentrate, diluting it by a factor of 2 to 100, and finally diluting it again to the desirable final concentration. This procedure is commonly used to avoid transport and storage of highly diluted compositions.
  • Aqueous lubricant compositions are usually applied in very dilute form such that the active concentration applied in the conveyor systems ranges from 0.01% to 2% by weight.
  • the total active matter (substantially provided by components (a) , (b) , (c) and (d) ) present in the lubricant diluted composition ranges from 0.01 to 1%, preferably from 0.02 to 0.5% by weight. Dilution of the lubricant concentrated composition to obtain lubricant diluted compositions, which are those that are directly applied to the conveyor systems can be done with hard water, semi-hard water or soft water.
  • aqueous lubricant compositions according to the invention can also contain additives such as ionic surfactants, non ionic surfactants, amphoteric surfactants, foam inhibitor agents, foam regulators, foam stabilizers, complexing agents, chelating agents, solubilizers , emulsifiers, biocides, bactericides, disinfectants, fungicides, antioxidants, corrosion inhibitors and pH regulators, either in the form of aqueous lubricant concentrated compositions or aqueous lubricant diluted compositions .
  • additives such as ionic surfactants, non ionic surfactants, amphoteric surfactants, foam inhibitor agents, foam regulators, foam stabilizers, complexing agents, chelating agents, solubilizers , emulsifiers, biocides, bactericides, disinfectants, fungicides, antioxidants, corrosion inhibitors and pH regulators, either in the form of aqueous lubricant concentrated compositions or aqueous
  • the pH of these aqueous lubricant compositions for conveyor systems is preferably between 6.0 and 8.5, more preferably between 6.5 and 8.0.
  • the viscosity of the aqueous lubricant concentrated composition of the present invention ranges from 50 to 20,000 mPa's at 20 0 C, more preferably from 100 to 10,000 mPa ' s at 20°C.
  • the viscosity of said partially diluted composition ranges from 100 to 6,000 mPa's at 20 0 C, and it is preferably less than 1,000 mPas at 20 °C.
  • the aqueous lubricant diluted composition of the present invention has a viscosity equal or similar to the viscosity of water at 20 0 C.
  • the compositions of the invention may contain solubilizing agents that can be mixed with water or that are water-soluble.
  • solubilizers are used: urea, ethanol , n-propanol, i-propanol, n-butanol, ethylene glycol and/or butyldi glycol, propylene glycol, polyethylene glycol, lower and higher molecular weight polyethylene-glycols [HO- (CH 2 -CH 2 - O) n -H] such as PEG-150, PEG-300, PEG-500, PEG-2000, PEG-3500 or PEG-8000, methoxy polyethylene glycols [CH 3 O- (CH 2 -CH 2 -O) n- H] having an average molecular weight ranging from 150 to 5000, such as MPEG- 350, MPEG-500, MPEG-750, MPEG-1000, MPEG- 2000, MPEG-3000 or MPEG-5000, vegetable oils, mixtures of alkoxylated glycerides derived from carboxylic acids containing between 6 and 22 carbons and alkoxyl
  • the disinfectants that could be contained in the aqueous lubricant compositions for conveyor systems are, for example, those described in the "Gu ⁇ a de Plaguicidas utilizados en Higiene Alimentaria y Salud P ⁇ blica" published by the Spanish Health Ministry (ISBN: 84-7607-499-2) .
  • disinfectants should be used when there is a risk of germs in the reserve tanks or on the conveyor systems.
  • These disinfectants or mixtures thereof can be used in amounts of 5 to 50 parts by weight, relative to 100 parts by weight the total amount of the compounds a) , b) c) and d) .
  • a preferred disinfectant agent according to the invention is chlorine dioxide (ClO 2 )
  • the subject matter of the present invention also includes a process for lubricating conveyor systems consisting in applying an aqueous lubricant diluted composition according to the invention to a conveyor system continuosly or at intervals.
  • the conveyor systems which can be lubricated by the process according to the invention, can be systems for glass bottles, plastic bottles such as polyethylene terephtalate (PET) or polycarbonate (PC) bottles, cans, glass containers, drums, cardboard containers and similar items.
  • PET polyethylene terephtalate
  • PC polycarbonate
  • the systems are suitable for glass bottles, polyethylene terephtalate (PET) bottles, and cans.
  • the subject matter of the present invention also includes the use of the aqueous diluted lubricant composition according to the invention for lubricating conveyor systems.
  • Said conveyor systems can be systems for glass bottles, plastic bottles such as polyethylene terephtalate (PET) or polycarbonate (PC) bottles, cans, glass containers, drums, cardboard containers and similar items.
  • PET polyethylene terephtalate
  • PC polycarbonate
  • the systems are suitable for glass bottles, polyethylene terephtalate (PET) bottles, and cans.
  • Example 1 Aqueous lubricant compositions
  • aqueous lubricant compositions were prepared. The values are referred to weight percentage.
  • Spraying volume of the nozzle approximately 3.5 L/hour.
  • the dynamic friction coefficient ( ⁇ ) is defined as the coefficient between the tensile force measured for a bottle and the weight of this bottle expressed in grams. This coefficient is determined when a constant value is obtained.
  • compositions according to the invention present no foam formation or slightly foam formation.
  • Table 3 shows the friction coefficients obtained for the lubricant compositions described in Table 1 and Table 2 of Example 1 .
  • Example 3 Lubrication in conveyor systems for PET bottles .
  • Spraying volume of the nozzle approximately 3.5 L/hour.
  • the dynamic friction coefficient ( ⁇ ) is defined as the coefficient between the tensile force measured for a bottle and the weight of this bottle expressed in grams. This coefficient is determined when a constant value is obtained.
  • compositions according to the invention present no foam formation or slightly foam formation.
  • Table 4 shows the friction coefficients obtained for the lubricant compositions described in Table 1 and Table 2 of Example 1. Table 4. - Friction coefficients for PET bottles ( ⁇ )
  • Compositions 1 and 2 are particularly advantageous for glass bottles.
  • compositions 4 and 5 where the ether carboxylic acid is a mixture of
  • oleyl ether carboxylic acid having an average ethoxylation degree of 5 are particularly advantageous for both glass and PET bottles.
  • Example 4 Viscosity of the lubricant compositions for conveyor systems.
  • aqueous lubricant compositions for conveyor systems of Table 1 of Example 1 were slightly diluted to obtain intermediate partially diluted compositions (8 % by weight on active matter) .
  • Their viscosity at 20 0 C was measured a Brookfield viscometer LVT (supplied by Brookfield Engineering Laboratories Inc. Stoughton, MA, USA) in accordance with DIN 1341 (spindle 2 at 30 rpm for viscosities in the range of up to 1,000 mPa . s ; spindle 3 at 12 rpm for viscosities in the range of 1,000 to 7,000 mPa.s; spindle 4 at 12 rpm for viscosities in the range of more than 7,000 mPa . s)
  • Dilution of the lubricant compositions according to the invention was carried out with tap water from Emmerich am Rhein (Germany), specifically of hardness 17 c dH (German degrees) according to the regulation UNE-EN 12829.
  • aqueous lubricant compositions for conveyor systems according to the invention are pumpable and homogeneous at room temperature. Furthermore, it has to be remarked that the compositions where the ether carboxylic acid is a mixture of
  • oleyl ether carboxylic acid having an average ethoxylation degree of 5 are particularly advantageous from the viscosity point of view (better pumpability)
  • Example 5 Other lubricant compositions according to the invention
  • composition C5 A lubricant composition as described in US 4 895 668 (composition C5) and a similar lubricant composition, but containing phosphate ester and fatty alcohol (Example 33) were prepared. Their compositions are shown in Table 10. The values refer to weight percentages (components as active matter) .
  • composition of the present invention is superior to the one of US 4 895 668 in terms of lubrication for both glass and PET bottles.
PCT/EP2007/002772 2006-03-31 2007-03-28 Lubricant composition WO2007112917A2 (en)

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US12/225,234 US20100286009A1 (en) 2006-03-31 2007-03-28 Lubricant Composition
CA002645226A CA2645226A1 (en) 2006-03-31 2007-03-28 An aqueous conveyor lubricant composition for use in the foodstuff industry
JP2009501948A JP5465004B2 (ja) 2006-03-31 2007-03-28 潤滑剤組成物
EP07723716A EP2024472A2 (de) 2006-03-31 2007-03-28 Schmierstoffzusammensetzung
BRPI0708839-6A BRPI0708839A2 (pt) 2006-03-31 2007-03-28 composição lubrificante, processo para lubrificar sistemas transportadores e utilização de uma composição lubrificante.
AU2007234025A AU2007234025B2 (en) 2006-03-31 2007-03-28 Lubricant composition

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EP06006957.2 2006-03-31
EP06006957A EP1840196A1 (de) 2006-03-31 2006-03-31 Schmiermittelzusammensetzung

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WO2007112917A3 WO2007112917A3 (en) 2007-11-22

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JP2010512452A (ja) * 2006-12-12 2010-04-22 ジョンソンディバーシー・インコーポレーテッド コンベヤベルトを潤滑にする方法
JP2011518896A (ja) * 2008-03-25 2011-06-30 ディバーシー・インコーポレーテッド 油性潤滑剤を使用する乾燥潤滑法
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US10851325B2 (en) 2005-03-15 2020-12-01 Ecolab Usa Inc. Dry lubricant for conveying containers
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US9873853B2 (en) 2013-03-11 2018-01-23 Ecolab Usa Inc. Lubrication of transfer plates using an oil or oil in water emulsions
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CN113430039A (zh) * 2021-07-20 2021-09-24 苏州安美润滑科技有限公司 一种抗高硬水切削液及其使用方法

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CA2645226A1 (en) 2007-10-11
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BRPI0708839A2 (pt) 2011-06-21
EP2024472A2 (de) 2009-02-18
JP5465004B2 (ja) 2014-04-09
US20100286009A1 (en) 2010-11-11
JP2009531483A (ja) 2009-09-03
WO2007112917A3 (en) 2007-11-22
RU2008143209A (ru) 2010-05-10
RU2437922C2 (ru) 2011-12-27

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