EP4282939A1 - Conveyor lubricant concentrate - Google Patents

Conveyor lubricant concentrate Download PDF

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Publication number
EP4282939A1
EP4282939A1 EP22175062.3A EP22175062A EP4282939A1 EP 4282939 A1 EP4282939 A1 EP 4282939A1 EP 22175062 A EP22175062 A EP 22175062A EP 4282939 A1 EP4282939 A1 EP 4282939A1
Authority
EP
European Patent Office
Prior art keywords
weight
belt
belt lubricant
concentrate
lubricant concentrate
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.)
Pending
Application number
EP22175062.3A
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German (de)
French (fr)
Inventor
Daniel Herzog
Christopher Schriefl
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.)
Thonhauser GmbH
Original Assignee
Thonhauser GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thonhauser GmbH filed Critical Thonhauser GmbH
Priority to EP22175062.3A priority Critical patent/EP4282939A1/en
Priority to US18/201,207 priority patent/US20230383209A1/en
Publication of EP4282939A1 publication Critical patent/EP4282939A1/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • C10M173/025—Lubricating compositions containing more than 10% water not containing mineral or fatty oils for lubricating conveyor belts
    • 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
    • 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
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/30—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms
    • C10M129/32—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms monocarboxylic
    • 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
    • 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
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/30—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms
    • C10M129/36—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms containing hydroxy groups
    • 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
    • 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
    • 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
    • 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
    • C10M2201/02—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
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/081—Inorganic acids or salts thereof containing halogen
    • 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
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • 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
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/046—Hydroxy ethers
    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/124—Carboxylix 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
    • 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
    • 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
    • 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
    • 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
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/16—Antiseptic; (micro) biocidal or bactericidal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/38—Conveyors or chain belts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • the present invention relates to a belt lubricant concentrate and its use when transporting containers on conveyor belts.
  • Belt lubricants are usually used to transport containers such as bottles or cans on conveyor belts.
  • Belt lubricants influence the sliding behavior of the containers to be transported on conveyor belts. On the one hand, they reduce the coefficient of friction between the container and the conveyor belt, so that signs of wear on the conveyor belts and the containers to be transported are significantly reduced. However, the friction must be at a minimum so that the containers can be transported on the conveyor belt.
  • conveyor belts often remain in motion while the containers transported on them are prevented from being transported further by an obstacle (e.g. other containers or baffles). Without suitable belt lubricants, the friction that occurs would lead to increased wear on the containers and conveyor belts. In addition, there could be delays in the transport process due to containers falling over, as increased friction between the container and the conveyor belt significantly reduces the stability of containers on conveyor belts.
  • an obstacle e.g. other containers or baffles
  • the belt lubricant used is not harmful to health and does not hinder other hygiene measures (e.g. use of chlorine dioxide). It is also desirable to keep the amount of belt lubricant used as low as possible for economic and ecological reasons.
  • the present invention therefore relates to a belt lubricant concentrate comprising 15% by weight to 30% by weight of at least one monocarboxylic acid, 10% by weight to 25% by weight of at least one N-alkyl-1,3-propanediamine, 5% by weight to 15% by weight of at least one nonionic surfactant and Water up to 100% by weight.
  • a belt lubricant concentrate with the composition according to the invention has particularly advantageous properties compared to known belt lubricant concentrates.
  • the belt lubricant concentrate according to the invention is sufficiently liquid at application temperatures between 10 and 35 ° C and is therefore easy to process. In addition, it can be mixed with water in very small amounts and still has excellent properties in terms of friction.
  • the belt lubricant concentrate according to the invention when diluted in water, has a lower consumption of chlorine dioxide than belt lubricants described in the prior art. Since chlorine dioxide is used in process water in the food industry, among other things, for microbiological control, this is a particularly advantageous property of the belt lubricant concentrate according to the invention in relation to chemical consumption.
  • a further aspect of the present invention relates to a ready-to-use belt lubricant comprising 0.01% by weight to 0.1% by weight of a belt lubricant concentrate according to the invention and water up to 100% by weight.
  • the belt lubricant concentrate according to the invention can be used in a concentration of 0.01% by weight to 0.1% by weight. Before using the belt lubricant on industrial systems, the belt lubricant concentrate according to the invention is diluted with water. The belt lubricant produced in this way can be applied to conveyor belts using a wide variety of methods, such as spraying methods.
  • a still further aspect of the present invention relates to the use of a belt lubricant concentrate according to the present invention for chain and/or belt lubrication systems, preferably in the food industry.
  • the belt lubricant concentrate according to the invention can be used to lubricate chain and/or belt lubrication systems.
  • Another aspect of the present invention relates to a method for lubricating the travel of a container along a conveyor belt, comprising applying a belt lubricant according to the present invention.
  • the belt lubricant concentrate according to the invention comprises 15% by weight to 30% by weight of at least one monocarboxylic acid, 10% by weight to 25% by weight of at least one N-alkyl-1,3-propanediamine, 5% by weight to 15% by weight of at least one nonionic surfactant and water up to 100 wt%.
  • organic acids has an influence on chlorine dioxide consumption, i.e. on the breakdown of chlorine dioxide over time.
  • the belt lubricant concentrate according to the invention can comprise one, two, three, four or more different monocarboxylic acids, the use of one, two or three different monocarboxylic acids being particularly preferred.
  • the at least one monocarboxylic acid, the at least one N-alkyl-1,3-propanediamine and the at least one nonionic surfactant are supplemented with 100% by weight of water, depending on their concentration in the end product.
  • the water added can be deionized or distilled water.
  • the at least one monocarboxylic acid is selected from the group consisting of formic acid and lactic acid.
  • the alkyl group of the at least one N-alkyl-1,3-propanediamine is a C 10 -C 24 alkyl group, preferably a C 12 -C 22 alkyl group, even more preferably a C 14 -C 20 alkyl group , even more preferably a C 16 -C 20 alkyl group, especially a C 18 alkyl group.
  • N-alkyl-1,3-propanediamines whose alkyl group has a certain length range. It has been shown according to the invention that particularly good results can be achieved C 10 -C 24 alkyl groups can be achieved, with C 16 -C 20 alkyl groups and in particular C 18 alkyl groups being particularly preferred.
  • the at least one N-alkyl-1,3-propanediamine is N-octadecylpropane-1,3-diamine.
  • the at least one nonionic surfactant is a polyalkylene glycol ether, which not only has a positive effect on lubrication, but also contributes to cleaning by enabling improved rinsing of the abrasion.
  • the polyalkylene glycol ether has a degree of ethoxylation between 15 and 30, preferably between 20 and 30, more preferably between 23 and 28, in particular 25.
  • Lutensol in particular Lutensol AT25 and/or Lutensol FA12K, is used as a particularly preferred polyalkylene glycol ether.
  • the concentrate comprises 18% by weight to 28% by weight, preferably 20% by weight to 25% by weight, of at least one monocarboxylic acid.
  • the concentrate comprises 12% by weight to 22% by weight, preferably 15% by weight to 20% by weight, of the at least one N-alkyl-1,3-propanediamine.
  • the concentrate comprises 5% by weight to 12% by weight, preferably 7% by weight to 10% by weight, of the at least one nonionic surfactant.
  • the concentrate comprises 10% by weight to 30% by weight, preferably 12% by weight to 25% by weight, of at least one alcohol and / or 5% by weight to 10% by weight, preferably 6% by weight to 8% by weight , at least one glycol ether.
  • This embodiment is special advantageous in applications in which the concentrate according to the invention is distributed via pump systems.
  • the belt lubricant according to the invention comprises 0.01% by weight to 0.1% by weight of a belt lubricant concentrate according to the invention and water up to 100% by weight.
  • the process water comprises 0.02% by weight to 0.09% by weight, preferably 0.02% by weight to 0.08% by weight, even more preferably 0.02% by weight to 0.06% by weight, of the belt lubricant concentrate according to the invention.
  • the belt lubricant concentrate according to the invention is preferably diluted with water, preferably with deionized or ion-reduced water, before use. It has surprisingly been shown that less of the belt lubricant concentrate according to the invention needs to be used than with conventional concentrates in order to achieve the same or even better coefficient of friction.
  • the belt lubricant according to the invention is characterized in that it has a lower consumption of chlorine dioxide than known belt lubricants. This is particularly advantageous if the belt lubricant according to the invention is mixed with chlorine dioxide or used in combination with process water containing chlorine dioxide.
  • the water is essentially deionized before introducing the belt lubricant concentrate according to the invention.
  • the belt lubricant comprises 0.01 mg/L to 1 mg/L, preferably 0.01 mg/L to 0.8 mg/L, even more preferably 0.01 mg/L to 0.5 mg/L, chlorine dioxide.
  • Chlorine dioxide is used as a biocide in the food industry, among other things.
  • a further aspect of the present invention relates to the use of a belt lubricant concentrate according to the invention for chain and/or belt lubrication systems, preferably in the food industry.
  • the belt lubricant concentrate or belt lubricant according to the invention is used for chain and/or belt lubrication systems.
  • Still another aspect of the present invention relates to a method for lubricating the travel of a container a conveyor belt, comprising applying a belt lubricant according to the invention.
  • Methods for applying belt lubricant to conveyor belts made, for example, of steel, in particular stainless steel, are well known to those skilled in the art.
  • the most common method of applying belt lubricant is the spray method.
  • the conveyor belt is preferably brought into contact with process water which has 0.01 mg/L to 1 mg/L, preferably 0.01 mg/L to 0.8 mg/L, even more preferably 0.01 mg/L up to 0.5 mg/L, includes chlorine dioxide.
  • the control of biological growth is of crucial importance in the food industry.
  • chemical compounds are usually used to control biological growth.
  • a commonly used compound is chlorine dioxide. It has been found that chlorine dioxide in particular is quickly broken down by the ingredients of known belt lubricants, so that the biocidal effect of chlorine dioxide does not come into play or only to a very limited extent. It was surprisingly found that the belt lubricant according to the invention has a significantly lower chlorine dioxide consumption (i.e. degradation of chlorine dioxide) than previously known belt lubricants. For this reason, the belt lubricant according to the invention is particularly suitable in industrial systems in which chlorine dioxide is used as a biocide in process water (e.g. pasteurization systems).
  • Example 1 Influence of organic acids and the acid / A-min ratio on the solubility of belt lubricant concentrates
  • compositions 1 to 7 were prepared by mixing the ingredients as shown in Table 1. Physical state of the compositions and solubility after mixing with a water/ethanol mixture (2:1) (both at 20°C) were examined. The results are listed in Table 2.
  • Table 2 state of aggregation Mixing ratio [wt%] solubility #1 Fluid 57.6 Insoluble (precipitates) #2 Fluid 59.8 Soluble #3 Firmly 83.1 Poorly soluble (resulted in a highly viscous mixture) #4 Fluid 66.8 Soluble #5 Firmly 82 Not soluble #6 Fluid 80.1 Soluble #7 Firmly 80 Not soluble
  • compositions 3 and 5 were poorly or insoluble. Both compositions also contain, in addition to the monocarboxylic acids also citric acid, a tricarboxylic acid. Composition 1 was also not soluble in a water/ethanol mixture (2:1). With this composition, the ratio of formic acid to Duomeen O was 0.3. In composition 5, the ratio of organic acids to Duomeen O was 1:1. Since composition 5 was still not soluble, it can be concluded that both the use of monocarboxylic acids and the ratio of these to N-alkyl-1,3-propanediamine are essential for the solubility of the composition.
  • Example 2 Determination of the coefficient of friction of belt lubricants made from concentrates of different compositions
  • Formic acid citric acid, acetic acid and lactic acid were used as acids.
  • a 0.05% aqueous solution of the composition according to Table 3 was sprayed onto specially designed conveyor belts using a pump. Around 30 liters of solution were applied per hour. Using a sensor connected to a T-Logg data logger, the measured values could be recorded in the MINISoft V7.18 software from GHM GROUP (Greisinger, Germany) are recorded. The measurement duration was 15 minutes, with one measurement point being recorded every second. By creating a calibration line, the measured signals could be converted into the friction force and consequently the friction coefficient. The coefficient of friction results from the ratio between friction force and normal force.
  • compositions containing monocarboxylic acids have both low coefficients of friction and low viscosities. Compositions with high viscosities caused the spray nozzles to become blocked after a short time (less than 10 minutes). The composition, which contained citric acid, had too high a viscosity.
  • Example 3 Influence of the concentration of N-alkyl-1,3-propane diamines on the coefficient of friction of belt lubricant
  • the concentration of N-alkyl-1,3-propanediamines in the belt lubricant can influence its coefficient of friction and was therefore examined in more detail.
  • the composition from Example 2 Table 3 was used, using 23% by weight of a monocarboxylic acid and diluted to 100% by weight with water. The concentration of the components was maintained as shown in Table 3, only the Duomeen O content and the water content were adjusted according to Table 5. coefficient of friction and Viscosity was determined analogously to Example 2.
  • Example 4 Rate of degradation of chlorine dioxide in the presence of the belt lubricant according to the invention
  • composition of the belt lubricant has a direct impact on the breakdown of chlorine dioxide in an aqueous solution such as process water.
  • the TM CLEAROXID LIQUID (Thonhauser GmbH) was diluted to 2 ppm. 0.05, 0.1 and 0.2% by weight of belt lubricant concentrate were added to this solution.
  • the chlorine dioxide content in the solution was determined after 5, 10 and 15 minutes using the Chlorine Dioxide Test test kit (Merck, Germany) and the Spectroquant Prove 300 photometer (Merck, Germany).
  • the belt lubricant concentrate was the composition according to Table 3 with formic acid as monocarboxylic acid (SD PLUS) or formic acid and lactic acid as monocarboxylic acids (ratio 2:1) (SD PLUS 2), ECOLAB LUBODRIVE (Ecolab company), ECOLAB DRYEXX (Ecolab company) , ECOLAB LUBODRIVE CD (Ecolab) and water are used.
  • BSM belt lubricant
  • Table 6 BSM (conc.) [wt%] 0 minutes 5 minutes ClO 2 conc. [mg/l] ClO 2 conc.

Abstract

Die vorliegende Erfindung betrifft ein Bandschmiermittelkonzentrat umfassend 15 Gew% bis 30 Gew% mindestens einer Monocarbonsäure, 10 Gew% bis 25 Gew% mindestens eines N-Alkyl-1,3-Propandiamins, 5 Gew% bis 15 Gew% mindestens eines nichtionischen Tensids und Wasser bis zu 100 Gew%.The present invention relates to a belt lubricant concentrate comprising 15% by weight to 30% by weight of at least one monocarboxylic acid, 10% by weight to 25% by weight of at least one N-alkyl-1,3-propanediamine, 5% by weight to 15% by weight of at least one nonionic surfactant and water up to 100% by weight.

Description

TECHNISCHES GEBIETTECHNICAL FIELD

Die vorliegende Erfindung betrifft ein Bandschmiermittelkonzentrat und dessen Verwendung beim Transport von Gebinden auf Transportbändern.The present invention relates to a belt lubricant concentrate and its use when transporting containers on conveyor belts.

HINTERGRUND DER ERFINDUNGBACKGROUND OF THE INVENTION

Für den Transport von Gebinden, wie z.B. Flaschen oder Dosen, auf Transportbändern werden üblicherweise Bandschmiermittel eingesetzt.Belt lubricants are usually used to transport containers such as bottles or cans on conveyor belts.

Bandschmiermittel beeinflussen das Gleitverhalten der zu transportierenden Gebinde auf Transportbändern. Einerseits reduzieren diese den Reibungskoeffizienten zwischen Gebinde und Transportband, so dass Verschleißerscheinungen der Transportbänder und der zu transportierenden Gebinde signifikant verringert werden. Die Reibung muss jedoch ein Mindestmaß aufweisen, damit die Gebinde am Transportband befördert werden können.Belt lubricants influence the sliding behavior of the containers to be transported on conveyor belts. On the one hand, they reduce the coefficient of friction between the container and the conveyor belt, so that signs of wear on the conveyor belts and the containers to be transported are significantly reduced. However, the friction must be at a minimum so that the containers can be transported on the conveyor belt.

Vor allem in der Lebensmittelindustrie bleiben Transportbänder häufig in Bewegung, während die darauf transportierten Gebinde durch ein Hindernis (z.B. andere Gebinde oder Schikanen) am Weitertransport behindert werden. Ohne geeignete Bandschmiermittel würde die dabei auftretende Reibung zu einem erhöhten Verschleiß bei den Gebinden und den Transportbändern führen. Zudem könnte es beim Transportvorgang zu Verzögerungen durch umgefallene Gebinde kommen, da durch eine erhöhte Reibung zwischen Gebinde und Transportband die Stabilität von auf Transportbändern befindlichen Gebinden signifikant reduziert wird.Particularly in the food industry, conveyor belts often remain in motion while the containers transported on them are prevented from being transported further by an obstacle (e.g. other containers or baffles). Without suitable belt lubricants, the friction that occurs would lead to increased wear on the containers and conveyor belts. In addition, there could be delays in the transport process due to containers falling over, as increased friction between the container and the conveyor belt significantly reduces the stability of containers on conveyor belts.

Vor allem in der Lebensmittelindustrie ist es zudem entscheidend, dass das verwendete Bandschmiermittel gesundheitlich unproblematisch und sonstigen Hygienemaßnahmen (z.B. Einsatz von Chlordioxid) nicht hinderlich ist. Zudem ist es erstrebenswert, die Menge an eingesetzten Bandschmiermittel aus ökonomischen und ökologischen Gründen so gering wie möglich zu halten.Particularly in the food industry, it is also crucial that the belt lubricant used is not harmful to health and does not hinder other hygiene measures (e.g. use of chlorine dioxide). It is also desirable to keep the amount of belt lubricant used as low as possible for economic and ecological reasons.

Es ist daher eine Aufgabe der vorliegenden Erfindung ein Bandschmiermittel bzw. ein Bandschmiermittelkonzentrat bereitzustellen, welches nur in geringen Mengen eingesetzt werden muss, um eine für den Transport von Gebinden auf Transportbändern geeignete Reibung zu erzeugen. Weiters ist es eine Aufgabe der vorliegenden Erfindung, dass das Bandschmiermittel bzw. Bandschmiermittelkonzentrat eine geringere ChlordioxidZehrung aufweist als Bandschmiermittel, die im Stand der Technik beschrieben sind.It is therefore an object of the present invention to provide a belt lubricant or a belt lubricant concentrate which only needs to be used in small quantities in order to generate friction suitable for the transport of containers on conveyor belts. Furthermore, it is an object of the present invention that the belt lubricant or belt lubricant concentrate has a lower chlorine dioxide consumption than belt lubricants described in the prior art.

ZUSAMMENFASSUNG DER ERFINDUNGSUMMARY OF THE INVENTION

Die vorliegende Erfindung betrifft daher ein Bandschmiermittelkonzentrat umfassend 15 Gew% bis 30 Gew% mindestens einer Monocarbonsäure, 10 Gew% bis 25 Gew% mindestens eines N-Alkyl-1,3-Propandiamins, 5 Gew% bis 15 Gew% mindestens eines nichtionischen Tensids und Wasser bis zu 100 Gew%.The present invention therefore relates to a belt lubricant concentrate comprising 15% by weight to 30% by weight of at least one monocarboxylic acid, 10% by weight to 25% by weight of at least one N-alkyl-1,3-propanediamine, 5% by weight to 15% by weight of at least one nonionic surfactant and Water up to 100% by weight.

Es hat sich überraschender Weise gezeigt, dass ein Bandschmiermittelkonzentrat mit der erfindungsgemäßen Zusammensetzung besonders vorteilhafte Eigenschaften gegenüber bekannten Bandschmiermittelkonzentraten aufweist. Das erfindungsgemäße Bandschmiermittelkonzentrat ist bei Anwendungstemperaturen zwischen 10 und 35°C ausreichend flüssig und somit gut verarbeitbar. Zudem kann es in sehr geringen Mengen mit Wasser vermischt werden und weist dennoch hervorragende Eigenschaften in Bezug auf den Reibwert auf. Das erfindungsgemäße Bandschmiermittelkonzentrat zeigt verdünnt in Wasser eine geringere Chlordioxidzehrung auf als im Stand der Technik beschriebene Bandschmiermittel. Da Chlordioxid im Prozesswasser in der Lebensmittelindustrie u.a. zur mikrobiologischen Kontrolle eingesetzt wird, ist dies eine besonders vorteilhafte Eigenschaft des erfindungsgemäßen Bandschmiermittelkonzentrats in Bezug auf den Chemikalienverbrauch.It has surprisingly been shown that a belt lubricant concentrate with the composition according to the invention has particularly advantageous properties compared to known belt lubricant concentrates. The belt lubricant concentrate according to the invention is sufficiently liquid at application temperatures between 10 and 35 ° C and is therefore easy to process. In addition, it can be mixed with water in very small amounts and still has excellent properties in terms of friction. The belt lubricant concentrate according to the invention, when diluted in water, has a lower consumption of chlorine dioxide than belt lubricants described in the prior art. Since chlorine dioxide is used in process water in the food industry, among other things, for microbiological control, this is a particularly advantageous property of the belt lubricant concentrate according to the invention in relation to chemical consumption.

Ein weiterer Aspekt der vorliegenden Erfindung betrifft ein anwendungsfertiges Bandschmiermittel umfassend 0,01 Gew% bis 0,1 Gew% eines erfindungsgemäßen Bandschmiermittelkonzentrats und Wasser bis zu 100 Gew%.A further aspect of the present invention relates to a ready-to-use belt lubricant comprising 0.01% by weight to 0.1% by weight of a belt lubricant concentrate according to the invention and water up to 100% by weight.

Das erfindungsgemäße Bandschmiermittelkonzentrat kann in einer Konzentration von 0,01 Gew% bis 0,1 Gew% verwendet werden. Vor dem Einsatz des Bandschmiermittels auf industriellen Anlagen wird das erfindungsgemäße Bandschmiermittelkonzentrat mit Wasser verdünnt. Das dadurch hergestellte Bandschmiermittel kann mittels unterschiedlichster Verfahren, wie z.B. Sprühverfahren, auf Transportbänder aufgebracht werden.The belt lubricant concentrate according to the invention can be used in a concentration of 0.01% by weight to 0.1% by weight. Before using the belt lubricant on industrial systems, the belt lubricant concentrate according to the invention is diluted with water. The belt lubricant produced in this way can be applied to conveyor belts using a wide variety of methods, such as spraying methods.

Der geringe Einsatz von Bandschmiermittelkonzentrat ist sowohl ökologisch als auch ökonomisch vorteilhaft.The low use of belt lubricant concentrate is both ecologically and economically advantageous.

Ein noch weiterer Aspekt der vorliegenden Erfindung betrifft die Verwendung eines Bandschmiermittelkonzentrats gemäß der vorliegenden Erfindung für Ketten- und/oder Bandschmieranlagen, vorzugsweise in der Lebensmittelindustrie.A still further aspect of the present invention relates to the use of a belt lubricant concentrate according to the present invention for chain and/or belt lubrication systems, preferably in the food industry.

Das erfindungsgemäße Bandschmiermittelkonzentrat kann zum Schmieren von Ketten- und/oder Bandschmieranlagen verwendet werden.The belt lubricant concentrate according to the invention can be used to lubricate chain and/or belt lubrication systems.

Ein weiterer Aspekt der vorliegenden Erfindung betrifft ein Verfahren zum Schmieren der Fahrt eines Behälters entlang eines Förderbandes, umfassend das Auftragen eines Bandschmiermittels gemäß der vorliegenden Erfindung.Another aspect of the present invention relates to a method for lubricating the travel of a container along a conveyor belt, comprising applying a belt lubricant according to the present invention.

BESCHREIBUNG DER AUSFÜHRUNGSFORMENDESCRIPTION OF EMBODIMENTS

Das erfindungsgemäße Bandschmiermittelkonzentrat umfasst 15 Gew% bis 30 Gew% mindestens einer Monocarbonsäure, 10 Gew% bis 25 Gew% mindestens eines N-Alkyl-1,3-Propandiamins, 5 Gew% bis 15 Gew% mindestens eines nichtionischen Tensids und Wasser bis zu 100 Gew%.The belt lubricant concentrate according to the invention comprises 15% by weight to 30% by weight of at least one monocarboxylic acid, 10% by weight to 25% by weight of at least one N-alkyl-1,3-propanediamine, 5% by weight to 15% by weight of at least one nonionic surfactant and water up to 100 wt%.

Es hat sich erfindungsgemäß gezeigt, dass die Verwendung von Monocarbonsäuren besonders vorteilhaft ist, um ein Konzentrat zu erhalten, welches ausreichend stabil ist und eine Viskosität aufweist, die eine Weiterverarbeitung zu einem Bandschmiermittel in einfacher Weise durch Vermischen mit Wasser ermöglicht. Es hat sich nämlich gezeigt, dass die vorwiegende Verwendung von organischen Säuren, die mehr als eine Carboxylgruppe aufweisen, in dem erfindungsgemäßen Konzentrationsbereich entweder zu einem festen oder zähflüssigen Konzentrat führen, welches kaum bis gar nicht weiterverarbeitet werden kann. In einigen Fällen kommt es bei Verdünnung eines Konzentrats mit organischen Säuren mit mehr als einer Carboxylgruppe zu Ausfällungen, die eine Weiterverwendung des verdünnten Konzentrats nicht mehr möglich machen.It has been shown according to the invention that the use of monocarboxylic acids is particularly advantageous in order to obtain a concentrate which is sufficiently stable and has a viscosity which enables further processing into a belt lubricant in a simple manner by mixing it with water. It has been shown that the predominant use of organic acids that have more than one carboxyl group in the concentration range according to the invention leads to either a solid or viscous concentrate, which can hardly or not be processed further. In some cases, dilution of a concentrate with organic acids containing more than one occurs Carboxyl group leads to precipitates, which make further use of the diluted concentrate no longer possible.

Zudem hat die Auswahl der organischen Säuren einen Einfluss auf die Chlordioxidzehrung, d.h. auf den Abbau von Chlordioxid über die Zeit. Die Verwendung von organischen Säuren mit mehr als einer Carboxylgruppe in Bandschmiermittelkonzentraten führt bei deren Verdünnung zu Bandschmiermitteln zu einer Zusammensetzung, die eine höhere Chlordioxidzehrung aufweist als Konzentrate, die zumindest eine Monocarbonsäure umfassen. D.h. Chlordioxid im Prozesswasser oder im Bandschmiermittel wird in Anwesenheit von organischen Säuren mit mehr als einer Carboxylgruppe rascher abgebaut.In addition, the selection of organic acids has an influence on chlorine dioxide consumption, i.e. on the breakdown of chlorine dioxide over time. The use of organic acids with more than one carboxyl group in belt lubricant concentrates, when diluted to form belt lubricants, results in a composition which has a higher chlorine dioxide consumption than concentrates which comprise at least one monocarboxylic acid. This means that chlorine dioxide in the process water or belt lubricant is broken down more quickly in the presence of organic acids with more than one carboxyl group.

Das erfindungsgemäße Bandschmiermittelkonzentrat kann eine, zwei, drei, vier oder mehr unterschiedliche Monocarbonsäuren umfassen, wobei die Verwendung von einer, zwei oder drei verschiedener Monocarbonsäuren besonders bevorzugt ist.The belt lubricant concentrate according to the invention can comprise one, two, three, four or more different monocarboxylic acids, the use of one, two or three different monocarboxylic acids being particularly preferred.

Die mindestens eine Monocarbonsäure, das mindestens eine N-Alkyl-1,3-Propandiamin und das mindestens eine nichtionische Tensid werden je nach deren Konzentration im Endprodukt zu 100 Gew% mit Wasser ergänzt. Das zugesetzte Wasser kann entionisiertes oder destilliertes Wasser sein.The at least one monocarboxylic acid, the at least one N-alkyl-1,3-propanediamine and the at least one nonionic surfactant are supplemented with 100% by weight of water, depending on their concentration in the end product. The water added can be deionized or distilled water.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung ist die mindestens eine Monocarbonsäure ausgewählt aus der Gruppe bestehend aus Ameisensäure und Milchsäure.According to a preferred embodiment of the present invention, the at least one monocarboxylic acid is selected from the group consisting of formic acid and lactic acid.

Es hat sich erfindungsgemäß gezeigt, dass es besonders vorteilhaft ist Ameisensäure und/oder Milchsäure im erfindungsgemäßen Bandschmiermittelkonzentrat vorzusehen.It has been shown according to the invention that it is particularly advantageous to provide formic acid and/or lactic acid in the belt lubricant concentrate according to the invention.

Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung ist die Alkylgruppe des mindestens einen N-Alkyl-1,3-Propandiamins eine C10-C24 Alkylgruppe, vorzugsweise eine C12-C22 Alkylgruppe, noch mehr bevorzugt eine C14-C20 Alkylgruppe, noch mehr bevorzugt eine C16-C20 Alkylgruppe, insbesondere eine C18 Alkylgruppe.According to a further preferred embodiment of the present invention, the alkyl group of the at least one N-alkyl-1,3-propanediamine is a C 10 -C 24 alkyl group, preferably a C 12 -C 22 alkyl group, even more preferably a C 14 -C 20 alkyl group , even more preferably a C 16 -C 20 alkyl group, especially a C 18 alkyl group.

Um einen geeigneten Reibwert des mit dem erfindungsgemäßen Konzentrat hergestellten Bandschmiermittels zu erhalten, ist es von Vorteil N-Alkyl-1,3-Propandiamine zu verwenden, deren Alkylgruppe eine gewissen Längenbereich aufweist. Es hat sich erfindungsgemäß gezeigt, dass besonders gute Ergebnisse mit C10-C24 Alkylgruppen erzielt werden können, wobei C16-C20 Alkylgruppen und insbesondere C18 Alkylgruppen besonders bevorzugt sind.In order to obtain a suitable coefficient of friction for the belt lubricant produced with the concentrate according to the invention, it is advantageous to use N-alkyl-1,3-propanediamines whose alkyl group has a certain length range. It has been shown according to the invention that particularly good results can be achieved C 10 -C 24 alkyl groups can be achieved, with C 16 -C 20 alkyl groups and in particular C 18 alkyl groups being particularly preferred.

Gemäß einer noch weiteren bevorzugten Ausführungsform der vorliegenden Erfindung ist das mindestens eine N-Alkyl-1,3-Propandiamin N-Octadecylpropan-1,3-Diamin.According to a still further preferred embodiment of the present invention, the at least one N-alkyl-1,3-propanediamine is N-octadecylpropane-1,3-diamine.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung ist das mindestens eine nichtionische Tensid ein Polyalkylenglykolether, welches nicht nur die Schmierung positiv beeinflusst, sondern auch zur Reinigung beiträgt, indem es eine verbesserte Ausspülung des Abriebs ermöglicht.According to a preferred embodiment of the present invention, the at least one nonionic surfactant is a polyalkylene glycol ether, which not only has a positive effect on lubrication, but also contributes to cleaning by enabling improved rinsing of the abrasion.

Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung weist der Polyalkylenglykolether einen Ethoxylierungsgrad zwischen 15 und 30, bevorzugt zwischen 20 und 30, stärker bevorzugt zwischen 23 und 28, insbesondere von 25 auf. Als besonders bevorzugter Polyalkylenglykolether wird Lutensol, insbesondere Lutensol AT25 und/oder Lutensol FA12K eingesetzt.According to a further preferred embodiment of the present invention, the polyalkylene glycol ether has a degree of ethoxylation between 15 and 30, preferably between 20 and 30, more preferably between 23 and 28, in particular 25. Lutensol, in particular Lutensol AT25 and/or Lutensol FA12K, is used as a particularly preferred polyalkylene glycol ether.

Gemäß einer besonders bevorzugten Ausführungsform der vorliegenden Erfindung umfasst das Konzentrat 18 Gew% bis 28 Gew%, vorzugsweise 20 Gew% bis 25 Gew%, der mindestens einen Monocarbonsäure.According to a particularly preferred embodiment of the present invention, the concentrate comprises 18% by weight to 28% by weight, preferably 20% by weight to 25% by weight, of at least one monocarboxylic acid.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung umfasst das Konzentrat 12 Gew% bis 22 Gew%, vorzugsweise 15 Gew% bis 20 Gew%, des mindestens einen N-Alkyl-1,3-Propandiamins.According to a preferred embodiment of the present invention, the concentrate comprises 12% by weight to 22% by weight, preferably 15% by weight to 20% by weight, of the at least one N-alkyl-1,3-propanediamine.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung umfasst das Konzentrat 5 Gew% bis 12 Gew%, vorzugsweise 7 Gew% bis 10 Gew%, des mindestens einen nichtionischen Tensids.According to a preferred embodiment of the present invention, the concentrate comprises 5% by weight to 12% by weight, preferably 7% by weight to 10% by weight, of the at least one nonionic surfactant.

Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung umfasst das Konzentrat 10 Gew% bis 30 Gew%, vorzugsweise 12 Gew% bis 25 Gew%, mindestens eines Alkohols und/oder 5 Gew% bis 10 Gew%, vorzugsweise 6 Gew% bis 8 Gew%, mindestens eines Glykolethers. In einigen Fällen kann eine Einstellung der Viskosität des erfindungsgemäßen Konzentrats mithilfe von Alkohol bzw. Glykolether in den angegebenen Mengen vorteilhaft sein. Diese Ausführungsform ist insbesondere in Anwendungen vorteilhaft, in denen das erfindungsgemäße Konzentrat über Pumpsysteme verteilt wird.According to a further preferred embodiment of the present invention, the concentrate comprises 10% by weight to 30% by weight, preferably 12% by weight to 25% by weight, of at least one alcohol and / or 5% by weight to 10% by weight, preferably 6% by weight to 8% by weight , at least one glycol ether. In some cases it may be advantageous to adjust the viscosity of the concentrate according to the invention using alcohol or glycol ether in the amounts specified. This embodiment is special advantageous in applications in which the concentrate according to the invention is distributed via pump systems.

Das erfindungsgemäße Bandschmiermittel umfasst 0,01 Gew% bis 0,1 Gew% eines erfindungsgemäßen Bandschmiermittelkonzentrats und Wasser bis zu 100 Gew%. Vorzugsweise umfasst das Prozesswasser 0,02 Gew% bis 0,09 Gew%, vorzugsweise 0,02 Gew% bis 0,08 Gew%, noch mehr bevorzugt 0,02 Gew% bis 0,06 Gew%, des erfindungsgemäßen Bandschmiermittelkonzentrats.The belt lubricant according to the invention comprises 0.01% by weight to 0.1% by weight of a belt lubricant concentrate according to the invention and water up to 100% by weight. Preferably, the process water comprises 0.02% by weight to 0.09% by weight, preferably 0.02% by weight to 0.08% by weight, even more preferably 0.02% by weight to 0.06% by weight, of the belt lubricant concentrate according to the invention.

Das erfindungsgemäße Bandschmiermittelkonzentrat wird vor dessen Verwendung vorzugsweise mit Wasser, vorzugsweise mit entionisierten oder Ionen-reduzierten Wasser, verdünnt. Es hat sich überraschenderweise gezeigt, dass vom erfindungsgemäßen Bandschmiermittelkonzentrat weniger eingesetzt werden muss als mit herkömmlichen Konzentraten, um denselben oder einen gar besseren Reibwert zu erzielen. Zudem zeichnet sich das erfindungsgemäße Bandschmiermittel dadurch aus, dass es eine geringere Chlordioxidzehrung aufweist als bekannte Bandschmiermittel. Dies ist insbesondere von Vorteil, wenn das erfindungsgemäße Bandschmiermittel mit Chlordioxid versetzt oder in Kombination mit Chlordioxid-haltigen Prozesswasser verwendet wird.The belt lubricant concentrate according to the invention is preferably diluted with water, preferably with deionized or ion-reduced water, before use. It has surprisingly been shown that less of the belt lubricant concentrate according to the invention needs to be used than with conventional concentrates in order to achieve the same or even better coefficient of friction. In addition, the belt lubricant according to the invention is characterized in that it has a lower consumption of chlorine dioxide than known belt lubricants. This is particularly advantageous if the belt lubricant according to the invention is mixed with chlorine dioxide or used in combination with process water containing chlorine dioxide.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung wird das Wasser vor dem Einbringen des erfindungsgemäßen Bandschmiermittelkonzentrats im Wesentlichen entionisiert.According to a preferred embodiment of the present invention, the water is essentially deionized before introducing the belt lubricant concentrate according to the invention.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung umfasst das Bandschmiermittel 0,01 mg/L bis 1 mg/L, vorzugsweise 0,01 mg/L bis 0,8 mg/L, noch mehr bevorzugt 0,01 mg/L bis 0,5 mg/L, Chlordioxid.According to a preferred embodiment of the present invention, the belt lubricant comprises 0.01 mg/L to 1 mg/L, preferably 0.01 mg/L to 0.8 mg/L, even more preferably 0.01 mg/L to 0.5 mg/L, chlorine dioxide.

Chlordioxid wird als Biozid u.a. in der Lebensmittelindustrie eingesetzt.Chlorine dioxide is used as a biocide in the food industry, among other things.

Ein weiterer Aspekt der vorliegenden Erfindung betrifft die Verwendung eines erfindungsgemäßen Bandschmiermittelkonzentrats für Ketten- und/oder Bandschmieranlagen, vorzugsweise in der Lebensmittelindustrie.A further aspect of the present invention relates to the use of a belt lubricant concentrate according to the invention for chain and/or belt lubrication systems, preferably in the food industry.

Das erfindungsgemäße Bandschmiermittelkonzentrat bzw. Bandschmiermittel wird für Ketten- und/oder Bandschmieranlagen eingesetzt.The belt lubricant concentrate or belt lubricant according to the invention is used for chain and/or belt lubrication systems.

Ein noch weiterer Aspekt der vorliegenden Erfindung betrifft ein Verfahren zum Schmieren der Fahrt eines Behälters entlang eines Förderbandes, umfassend das Auftragen eines erfindungsgemäßen Bandschmiermittels. Verfahren zum Auftragen von Bandschmiermittel auf Förderbänder, die beispielsweise aus Stahl, insbesondere Edelstahl, bestehen sind dem Fachmann hinreichend bekannt. Das gängigste Verfahren zum Aufbringen von Bandschmiermittel ist das Sprühverfahren.Still another aspect of the present invention relates to a method for lubricating the travel of a container a conveyor belt, comprising applying a belt lubricant according to the invention. Methods for applying belt lubricant to conveyor belts made, for example, of steel, in particular stainless steel, are well known to those skilled in the art. The most common method of applying belt lubricant is the spray method.

Im erfindungsgemäßen Verfahren wird das Förderband vorzugsweise mit Prozesswasser in Kontakt gebracht, welches 0,01 mg/L bis 1 mg/L, vorzugsweise 0,01 mg/L bis 0,8 mg/L, noch mehr bevorzugt 0,01 mg/L bis 0,5 mg/L, Chlordioxid umfasst.In the method according to the invention, the conveyor belt is preferably brought into contact with process water which has 0.01 mg/L to 1 mg/L, preferably 0.01 mg/L to 0.8 mg/L, even more preferably 0.01 mg/L up to 0.5 mg/L, includes chlorine dioxide.

Vor allem, aber nicht nur, ist die Kontrolle von biologischem Wachstum (z.B. Bakterien, Algen) in der Lebensmittelindustrie von entscheidender Bedeutung. Zur Kontrolle des biologischen Wachstums werden in der Regel neben physikalischen Maßnahmen auch chemische Verbindungen eingesetzt. Eine häufig eingesetzte Verbindung ist dabei Chlordioxid. Es wurde festgestellt, dass vor allem Chlordioxid von Inhaltsstoffen bekannter Bandschmiermittel rasch abgebaut wird, so dass der biozide Effekt von Chlordioxid nicht oder nur in sehr beschränktem Maße zur Geltung kommt. Es wurde überraschender Weise festgestellt, dass das erfindungsgemäße Bandschmiermittel ein signifikant geringere Chlordioxidzehrung (d.h. Abbau von Chlordioxid) aufweist als bisher bekannte Bandschmiermittel. Aus diesem Grund eignet sich das erfindungsgemäße Bandschmiermittel insbesondere in industriellen Anlagen, in denen Chlordioxid als Biozid in Prozesswasser (z.B. Pasteurisierungsanlagen) eingesetzt wird.Above all, but not only, the control of biological growth (e.g. bacteria, algae) is of crucial importance in the food industry. In addition to physical measures, chemical compounds are usually used to control biological growth. A commonly used compound is chlorine dioxide. It has been found that chlorine dioxide in particular is quickly broken down by the ingredients of known belt lubricants, so that the biocidal effect of chlorine dioxide does not come into play or only to a very limited extent. It was surprisingly found that the belt lubricant according to the invention has a significantly lower chlorine dioxide consumption (i.e. degradation of chlorine dioxide) than previously known belt lubricants. For this reason, the belt lubricant according to the invention is particularly suitable in industrial systems in which chlorine dioxide is used as a biocide in process water (e.g. pasteurization systems).

Die vorliegende Erfindung wird anhand der folgenden Beispiele näher erläutert, ohne jedoch auf diese beschränkt zu sein.The present invention is explained in more detail using the following examples, but is not limited to them.

BEISPIELEEXAMPLES Beispiel 1: Einfluss der organischen Säuren und des Säure/A-min-Verhältnisses auf die Löslichkeit von Bandschmiermittelkonzentraten Example 1: Influence of organic acids and the acid / A-min ratio on the solubility of belt lubricant concentrates

Um den Einfluss von unterschiedlichen organischen Säuren und des Säure/Amin-Verhältnisses auf die Löslichkeit von Konzentraten auf Basis von N-Alkyl-1,3-Propandiaminen (z.B. Duomeen O) zu untersuchen, wurden die folgenden Zusammensetzungen getestet: Tabelle 1: Zusammensetzung #1 #2 #3 #4 #5 #6 #7 Propandiol [g] 31,3 30,1 21,7 27 19,3 27,7 24,3 Duomeen O [g] 52,1 50,2 36,1 44,9 32,1 40 43,2 Ameisensäure[g] 13,4 2,2 7,36 9,76 Essigsäure [g] 33 Gluconsäure [g] 14,9 10,2 Zitronensäure [g] 42,2 15 Milchsäure [g] 29,4 16,1 Monocarbonsäuren/ Duomeen O 0,3 0,7 0,7 0,5 0,6 0,5 To investigate the influence of different organic acids and the acid/amine ratio on the solubility of concentrates based on N-alkyl-1,3-propanediamines (e.g. Duomeen O) to investigate, the following compositions were tested: Table 1: composition #1 #2 #3 #4 #5 #6 #7 Propanediol [g] 31.3 30.1 21.7 27 19.3 27.7 24.3 Duomeen O [g] 52.1 50.2 36.1 44.9 32.1 40 43.2 formic acid[g] 13.4 2.2 7.36 9.76 Acetic acid [g] 33 Gluconic acid [g] 14.9 10.2 Citric acid [g] 42.2 15 lactic acid [g] 29.4 16.1 Monocarboxylic acids/Duomeen O 0.3 0.7 0.7 0.5 0.6 0.5

Die Zusammensetzungen 1 bis 7 wurden durch Mischen der Inhaltsstoffe, wie in Tabelle 1 angegeben, hergestellt. Aggregatzustand der Zusammensetzungen und Löslichkeit nach Mischung mit einem Wasser/Ethanol-Gemisch (2:1) (beide bei 20°C) wurden untersucht. Die Ergebnisse sind in Tabelle 2 aufgelistet. Tabelle 2: Aggregatzustand Mischungsverhältnis [Gew%] Löslichkeit #1 Flüssig 57,6 Nicht löslich (fällt aus) #2 Flüssig 59,8 Löslich #3 Fest 83,1 Schwerlöslich (ergab hochviskoses Gemisch) #4 Flüssig 66,8 Löslich #5 Fest 82 Nicht löslich #6 Flüssig 80,1 Löslich #7 Fest 80 Nicht löslich Compositions 1 to 7 were prepared by mixing the ingredients as shown in Table 1. Physical state of the compositions and solubility after mixing with a water/ethanol mixture (2:1) (both at 20°C) were examined. The results are listed in Table 2. Table 2: state of aggregation Mixing ratio [wt%] solubility #1 Fluid 57.6 Insoluble (precipitates) #2 Fluid 59.8 Soluble #3 Firmly 83.1 Poorly soluble (resulted in a highly viscous mixture) #4 Fluid 66.8 Soluble #5 Firmly 82 Not soluble #6 Fluid 80.1 Soluble #7 Firmly 80 Not soluble

Wie aus Tabelle 2 entnommen werden kann, waren die Zusammensetzungen 3 und 5 schwer bzw. nicht löslich. Beide Zusammensetzungen enthalten zusätzlich zu den Monocarbonsäuren auch noch Zitronensäure, eine Tricarbonsäure. Auch die Zusammensetzung 1 war in einem Wasser/Ethanol-Gemisch (2:1) nicht löslich. Bei dieser Zusammensetzung lag das Verhältnis der Ameisensäure zu Duomeen O bei 0,3. In Zusammensetzung 5 betrug das Verhältnis von organischen Säuren zu Duomeen O 1:1. Da Zusammensetzung 5 trotzdem nicht löslich war, kann man darauf schließen, dass sowohl der Einsatz von Monocarbonsäuren als auch das Verhältnis dieser zum N-Alkyl-1,3-Propandiamin essentiell für die Löslichkeit der Zusammensetzung ist.As can be seen from Table 2, compositions 3 and 5 were poorly or insoluble. Both compositions also contain, in addition to the monocarboxylic acids also citric acid, a tricarboxylic acid. Composition 1 was also not soluble in a water/ethanol mixture (2:1). With this composition, the ratio of formic acid to Duomeen O was 0.3. In composition 5, the ratio of organic acids to Duomeen O was 1:1. Since composition 5 was still not soluble, it can be concluded that both the use of monocarboxylic acids and the ratio of these to N-alkyl-1,3-propanediamine are essential for the solubility of the composition.

Beispiel 2: Ermittlung des Reibwerts von Bandschmiermittel hergestellt aus Konzentraten unterschiedlicher ZusammensetzungExample 2: Determination of the coefficient of friction of belt lubricants made from concentrates of different compositions

Der Reibwert und die Viskosität von Zusammensetzungen sind für deren Eignung als Bandschmiermittel entscheidend. Um den Einfluss verschiedener Säuren auf den Reibwert und auf die Viskosität zu untersuchen, wurden folgende Mischungen hergestellt: Tabelle 3: Chemikalie [Gew%] Propandiol 15 Duomeen O 17 Lutensol AT25 3 Lutensol FA12K 5 Isopropanol 8 Butylglykol 7 Tributoxyethylphosphat 4 Organische Säure 23 Wasser 18 The coefficient of friction and the viscosity of compositions are crucial for their suitability as belt lubricants. In order to investigate the influence of different acids on the coefficient of friction and viscosity, the following mixtures were prepared: Table 3: chemical [wt%] Propanediol 15 Duomeen O 17 Lutensol AT25 3 Lutensol FA12K 5 Isopropanol 8th Butyl glycol 7 Tributoxyethyl phosphate 4 Organic acid 23 Water 18

Als Säure wurde Ameisensäure, Zitronensäure, Essigsäure und Milchsäure eingesetzt.Formic acid, citric acid, acetic acid and lactic acid were used as acids.

Zur Bestimmung des Reibwerts wurde auf eigens dafür konstruierte Förderbänder eine 0,05%ige wässrige Lösung der Zusammensetzung gemäß Tabelle 3 mittels Pumpe gesprüht. Es wurden rund 30 l Lösung pro Stunde aufgetragen. Mithilfe eines an einen T-Logg Datenlogger verbundenen Sensors konnten die Messwerte in der Software MINISoft V7.18 der Firma GHM GROUP (Greisinger, Deutschland) aufgezeichnet werden. Die Messdauer betrug 15 Minuten, wobei jede Sekunde ein Messpunkt aufgezeichnet wurde. Durch die Erstellung einer Kalibrationsgeraden konnten die gemessenen Signale in die Reibungskraft und folglich den Reibungskoeffizienten umgerechnet werden. Der Reibungskoeffizient ergibt sich aus dem Verhältnis zwischen Reibungskraft und Normalkraft.To determine the coefficient of friction, a 0.05% aqueous solution of the composition according to Table 3 was sprayed onto specially designed conveyor belts using a pump. Around 30 liters of solution were applied per hour. Using a sensor connected to a T-Logg data logger, the measured values could be recorded in the MINISoft V7.18 software from GHM GROUP (Greisinger, Germany) are recorded. The measurement duration was 15 minutes, with one measurement point being recorded every second. By creating a calibration line, the measured signals could be converted into the friction force and consequently the friction coefficient. The coefficient of friction results from the ratio between friction force and normal force.

Zur Bestimmung der Viskosität wurde das Technical RotationsViskosimeter PCE-RVI 2 der Firma PCE Instruments (Deutschland) mit der Spindel L2 verwendet. Die Viskosität wurde bei 20°C und einer Spindelgeschwindigkeit von 60 rpm gemessen.To determine the viscosity, the PCE-RVI 2 technical rotation viscometer from PCE Instruments (Germany) with the L2 spindle was used. The viscosity was measured at 20°C and a spindle speed of 60 rpm.

Die gemessenen Daten sind in folgender Tabelle wiedergegeben: Tabelle 4: Säure Reibwert [pR] Viskosität [mPas] Ameisensäure 0,122 67 Zitronensäure 0,125 343 Essigsäure 0,123 64 Milchsäure 0,122 76 The measured data are shown in the following table: Table 4: acid Coefficient of friction [pR] Viscosity [mPas] formic acid 0.122 67 citric acid 0.125 343 acetic acid 0.123 64 lactic acid 0.122 76

Wie aus Tabelle 4 ersichtlich, weißen Zusammensetzungen, welche Monocarbonsäuren enthalten, sowohl niedrige Reibwerte, als auch niedrige Viskositäten auf. Zusammensetzungen mit hohen Viskositäten führten nach kurzer Zeit (unter 10 Minuten) zur Verstopfung der Sprühdüsen. Die Zusammensetzung, welche Zitronensäure enthielt, hatte eine zu hohe Viskosität.As can be seen from Table 4, compositions containing monocarboxylic acids have both low coefficients of friction and low viscosities. Compositions with high viscosities caused the spray nozzles to become blocked after a short time (less than 10 minutes). The composition, which contained citric acid, had too high a viscosity.

Beispiel 3: Einfluss der Konzentration von N-Alkyl-1,3-Propandiaminen auf den Reibwert von BandschmiermittelExample 3: Influence of the concentration of N-alkyl-1,3-propane diamines on the coefficient of friction of belt lubricant

Die Konzentration von N-Alkyl-1,3-Propandiaminen im Bandschmiermittel kann dessen Reibwert beeinflussen und wurde deshalb genauer untersucht. Die Zusammensetzung aus Beispiel 2 Tabelle 3 wurde verwendet, wobei 23 Gew% einer Monocarbonsäure eingesetzt und auf 100 wt% mit Wasser verdünnt wurde. Die Konzentration der Bestandteile wurde wie in Tabelle 3 dargelegt beibehalten, lediglich der Duomeen O Gehalt und der Wassergehalt wurde entsprechend Tabelle 5 angepasst. Reibwert und Viskosität wurden analog zu Beispiel 2 bestimmt. Die Ergebnisse der Messungen sind in folgender Tabelle dargestellt: Tabelle 5: N-Alkyl-1,3-Propandiamin [Gew%] Reibwert [pR] Viskosität [mPas] 7 0,135 26 15 0,119 59 17 0,121 71 20 0,118 135 23 0,122 202 The concentration of N-alkyl-1,3-propanediamines in the belt lubricant can influence its coefficient of friction and was therefore examined in more detail. The composition from Example 2 Table 3 was used, using 23% by weight of a monocarboxylic acid and diluted to 100% by weight with water. The concentration of the components was maintained as shown in Table 3, only the Duomeen O content and the water content were adjusted according to Table 5. coefficient of friction and Viscosity was determined analogously to Example 2. The results of the measurements are shown in the following table: Table 5: N-Alkyl-1,3-Propanediamine [wt%] Coefficient of friction [pR] Viscosity [mPas] 7 0.135 26 15 0.119 59 17 0.121 71 20 0.118 135 23 0.122 202

Aus Tabelle 5 kann man erkennen, dass die Verwendung von weniger als 7 wt% N-Alkyl-1,3-Propandiamin zu einem erhöhten Reibwert führt. Die Viskosität steigt mit dem N-Alkyl-1,3-Pro-pandiamingehalt an.From Table 5 it can be seen that the use of less than 7 wt% N-alkyl-1,3-propanediamine leads to an increased coefficient of friction. The viscosity increases with the N-alkyl-1,3-propanediamine content.

Beispiel 4: Abbaugeschwindigkeit von Chlordioxid in Anwesenheit des erfindungsgemäßen BandschmiermittelsExample 4: Rate of degradation of chlorine dioxide in the presence of the belt lubricant according to the invention

Die Zusammensetzung des Bandschmiermittels hat einen unmittelbaren Einfluss auf den Abbau von Chlordioxid in einer wässrigen Lösung wie Prozesswasser.The composition of the belt lubricant has a direct impact on the breakdown of chlorine dioxide in an aqueous solution such as process water.

Zur Bestimmung der Chlordioxidzehrung wurde das TM CLEAROXID LIQUID (Thonhauser GmbH) auf 2 ppm verdünnt. Zu dieser Lösung wurden 0,05, 0,1 bzw. 0,2 Gew% Bandschmiermittelkonzentrat hinzugegeben. Der Chlordioxidgehalt in der Lösung wurde nach 5, 10 und 15 Minuten mithilfe des Testkits Chlorine Dioxide Test (Merck, Deutschland) und des Photometers Spectroquant Prove 300 (Merck, Deutschland) bestimmt. Als Bandschmiermittelkonzentrat wurden die Zusammensetzung gemäß Tabelle 3 mit Ameisensäure als Monocarbonsäure (SD PLUS) bzw. Ameisensäure und Milchsäure als Monocarbonsäuren (Verhältnis 2:1) (SD PLUS 2), ECOLAB LUBODRIVE (Fa. Ecolab), ECOLAB DRYEXX (Fa. Ecolab), ECOLAB LUBODRIVE CD (Fa. Ecolab) und Wasser verwendet. Die Ergebnisse der Messungen sind in folgender Tabelle aufgelistet (BSM, Bandschmiermittel): Tabelle 6: BSM (Konz. ) [Gew%] 0 Minuten 5 Minuten ClO2-Konz. [mg/l] ClO2-Konz. [mg/l] ClO2-Abnahme [%] SD Plus (0,1) 1,44 1,06 26 SD Plus (0,05) 1,81 1,54 15 Wasser 1,95 1,65 15 Plus 2 (0,1) 2,14 0, 67 51 Plus 2 (0,05) 2,34 1,27 28 Ecolab Lubodrive (0,2) 2,08 0,08 96 Ecolab Lubodrive (0,1) 1,48 0,47 78 Ecolab Lubodrive (0,05) 2,07 1,09 51 Ecolab Dryexx (0,2) 1,74 0,02 99 Ecolab Dryexx (0,1) 2,18 0,02 99 Ecolab Dryexx (0,05) 2,19 0,06 97 Ecolab Lubodrive CD (0,2) 2,05 0, 61 71 Ecolab Lubodrive CD (0,1) 2,36 0,22 90 Tabelle 7: BSM (Konz.) [wt%] 10 Minuten 15 Minuten ClO2-Konz. [mg/l] ClO2 -Abnahme [%] ClO2 -Konz. [mg/l] ClO2 -Abnahme [%] SD Plus (0,1) 0,94 35 0,78 46 SD Plus (0,05) 1,31 28 1,03 43 Wasser 1,42 27 1,17 40 SD Plus 2 (0,1) 0,65 42 0,65 53 SD Plus 2 (0,05) 1,04 39 0,49 49 Ecolab Lubodrive (0,2) 0,02 99 0,2 99 Ecolab Lubodrive (0,1) 0,18 92 0,02 99 Ecolab Lubodrive (0,05) 0,85 65 0,58 79 Ecolab Dryexx (0,2) 0,02 99 0,02 99 Ecolab Dryexx (0,1) 0,02 99 0,02 99 Ecolab Dryexx (0,05) 0,02 99 0,02 99 Ecolab Lubodrive CD (0,2) 0,26 88 0,08 96 Ecolab Lubodrive CD (0,1) 0,02 99 0,02 99 To determine the chlorine dioxide consumption, the TM CLEAROXID LIQUID (Thonhauser GmbH) was diluted to 2 ppm. 0.05, 0.1 and 0.2% by weight of belt lubricant concentrate were added to this solution. The chlorine dioxide content in the solution was determined after 5, 10 and 15 minutes using the Chlorine Dioxide Test test kit (Merck, Germany) and the Spectroquant Prove 300 photometer (Merck, Germany). The belt lubricant concentrate was the composition according to Table 3 with formic acid as monocarboxylic acid (SD PLUS) or formic acid and lactic acid as monocarboxylic acids (ratio 2:1) (SD PLUS 2), ECOLAB LUBODRIVE (Ecolab company), ECOLAB DRYEXX (Ecolab company) , ECOLAB LUBODRIVE CD (Ecolab) and water are used. The results of the measurements are listed in the following table (BSM, belt lubricant): Table 6: BSM (conc.) [wt%] 0 minutes 5 minutes ClO 2 conc. [mg/l] ClO 2 conc. [mg/l] ClO 2 decrease [%] SD Plus (0.1) 1.44 1.06 26 SD Plus (0.05) 1.81 1.54 15 Water 1.95 1.65 15 Plus 2 (0.1) 2.14 0.67 51 Plus 2 (0.05) 2.34 1.27 28 Ecolab Lubodrive (0.2) 2.08 0.08 96 Ecolab Lubodrive (0.1) 1.48 0.47 78 Ecolab Lubodrive (0.05) 2.07 1.09 51 Ecolab Dryexx (0.2) 1.74 0.02 99 Ecolab Dryexx (0.1) 2.18 0.02 99 Ecolab Dryexx (0.05) 2.19 0.06 97 Ecolab Lubodrive CD (0.2) 2.05 0.61 71 Ecolab Lubodrive CD (0.1) 2.36 0.22 90 BSM (Conc.) [wt%] 10 mins 15 minutes ClO 2 conc. [mg/l] ClO 2 - decrease [%] ClO 2 - conc. [mg/l] ClO 2 - decrease [%] SD Plus (0.1) 0.94 35 0.78 46 SD Plus (0.05) 1.31 28 1.03 43 Water 1.42 27 1.17 40 SD Plus 2 (0.1) 0.65 42 0.65 53 SD Plus 2 (0.05) 1.04 39 0.49 49 Ecolab Lubodrive (0.2) 0.02 99 0.2 99 Ecolab Lubodrive (0.1) 0.18 92 0.02 99 Ecolab Lubodrive (0.05) 0.85 65 0.58 79 Ecolab Dryexx (0.2) 0.02 99 0.02 99 Ecolab Dryexx (0.1) 0.02 99 0.02 99 Ecolab Dryexx (0.05) 0.02 99 0.02 99 Ecolab Lubodrive CD (0.2) 0.26 88 0.08 96 Ecolab Lubodrive CD (0.1) 0.02 99 0.02 99

Aus Tabellen 6 und 7 kann man erkennen, dass durch die Verwendung von erfindungsgemäßen Zusammensetzungen die Chlordioxidzährung im Vergleich mit nicht erfindungsgemäßen Zusammensetzungen deutlich vermindert werden kann.From Tables 6 and 7 it can be seen that by using compositions according to the invention, chlorine dioxide formation can be significantly reduced in comparison with compositions not according to the invention.

Claims (18)

Bandschmiermittelkonzentrat umfassend 15 Gew% bis 30 Gew% mindestens einer Monocarbonsäure, 10 Gew% bis 25 Gew% mindestens eines N-Alkyl-1,3-Propandiamins, 5 Gew% bis 15 Gew% mindestens eines nichtionischen Tensids und Wasser bis zu 100 Gew%.Belt lubricant concentrate comprising 15% by weight to 30% by weight of at least one monocarboxylic acid, 10% by weight to 25% by weight of at least one N-alkyl-1,3-propanediamine, 5% by weight to 15% by weight of at least one nonionic surfactant and water up to 100% by weight . Bandschmiermittelkonzentrat gemäß Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Monocarbonsäure ausgewählt ist aus der Gruppe bestehend aus Ameisensäure und Milchsäure.Belt lubricant concentrate according to claim 1, characterized in that the at least one monocarboxylic acid is selected from the group consisting of formic acid and lactic acid. Bandschmiermittelkonzentrat gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Alkylgruppe des mindestens einen N-Alkyl-1,3-Propandiamins eine C10-C24 Alkylgruppe, vorzugsweise eine C12-C22 Alkylgruppe, noch mehr bevorzugt eine C14-C20 Alkylgruppe, noch mehr bevorzugt eine C16-C20 Alkylgruppe, insbesondere eine C18 Alkylgruppe, ist.Belt lubricant concentrate according to claim 1 or 2, characterized in that the alkyl group of the at least one N-alkyl-1,3-propanediamine is a C 10 -C 24 alkyl group, preferably a C 12 -C 22 alkyl group, even more preferably a C 14 -C 20 alkyl group, even more preferably a C 16 -C 20 alkyl group, especially a C 18 alkyl group. Bandschmiermittelkonzentrat gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das mindestens eine N-Alkyl-1,3-Propandiamin N-Octadecylpropan-1,3-Diamin ist.Belt lubricant concentrate according to one of claims 1 to 3, characterized in that the at least one N-alkyl-1,3-propanediamine is N-octadecylpropane-1,3-diamine. Bandschmiermittelkonzentrat gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das mindestens eine nichtionische Tensid ein Polyalkylenglykolether ist.Belt lubricant concentrate according to one of claims 1 to 4, characterized in that the at least one nonionic surfactant is a polyalkylene glycol ether. Bandschmiermittelkonzentrat gemäß Anspruch 5, dadurch gekennzeichnet, dass der Polyalkylenglykolether einen Ethoxylierungsgrad von 15 bis 30, bevorzugt zwischen 20 und 30 und stärker bevorzugt zwischen 23 und 28 aufweist.Belt lubricant concentrate according to claim 5, characterized in that the polyalkylene glycol ether has a degree of ethoxylation of 15 to 30, preferably between 20 and 30 and more preferably between 23 and 28. Bandschmiermittelkonzentrat gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Konzentrat 18 Gew% bis 28 Gew%, vorzugsweise 20 Gew% bis 25 Gew%, der mindestens einen Monocarbonsäure umfasst.Belt lubricant concentrate according to one of claims 1 to 6, characterized in that the concentrate comprises 18% by weight to 28% by weight, preferably 20% by weight to 25% by weight, of at least one monocarboxylic acid. Bandschmiermittelkonzentrat gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Konzentrat 12 Gew% bis 22 Gew%, vorzugsweise 15 Gew% bis 20 Gew%, des mindestens einen N-Alkyl-1,3-Propandiamins umfasst.Belt lubricant concentrate according to one of claims 1 to 7, characterized in that the concentrate comprises 12% by weight to 22% by weight, preferably 15% by weight to 20% by weight, of the at least one N-alkyl-1,3-propanediamine. Bandschmiermittelkonzentrat gemäß einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Konzentrat 5 Gew% bis 12 Gew%, vorzugsweise 7 Gew% bis 10 Gew%, des mindestens einen nichtionischen Tensids umfasst.Belt lubricant concentrate according to one of claims 1 to 8, characterized in that the concentrate comprises 5% by weight to 12% by weight, preferably 7% by weight to 10% by weight, of the at least one nonionic surfactant. Bandschmiermittelkonzentrat gemäß einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Konzentrat 10 Gew% bis 30 Gew%, vorzugsweise 12 Gew% bis 25 Gew%, mindestens eines Alkohols und/oder 5 Gew% bis 10 Gew%, vorzugsweise 6 Gew% bis 8 Gew%, mindestens eines Glykolethers umfasst.Belt lubricant concentrate according to one of claims 1 to 9, characterized in that the concentrate contains 10% by weight to 30% by weight, preferably 12% by weight to 25% by weight, of at least one alcohol and / or 5% by weight to 10% by weight, preferably 6% by weight up to 8% by weight, of at least one glycol ether. Bandschmiermittelkonzentrat gemäß einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Wasser im Wesentlichen entionisiert ist.Belt lubricant concentrate according to one of claims 1 to 10, characterized in that the water is essentially deionized. Bandschmiermittel umfassend 0,01 Gew% bis 0,1 Gew% eines Bandschmiermittelkonzentrats gemäß einem der Ansprüche 1 bis 11 und Wasser bis zu 100 Gew%.Belt lubricant comprising 0.01% by weight to 0.1% by weight of a belt lubricant concentrate according to one of claims 1 to 11 and water up to 100% by weight. Bandschmiermittel gemäß Anspruch 12, dadurch gekennzeichnet, dass das Bandschmiermittel 0,02 Gew% bis 0,09 Gew%, vorzugsweise 0,02 Gew% bis 0,08 Gew%, noch mehr bevorzugt 0,02 Gew% bis 0,06 Gew%, des Bandschmiermittelkonzentrats umfasst.Belt lubricant according to claim 12, characterized in that the belt lubricant is 0.02% by weight to 0.09% by weight, preferably 0.02% by weight to 0.08% by weight, even more preferably 0.02% by weight to 0.06% by weight , the belt lubricant concentrate includes. Bandschmiermittel gemäß Anspruch 12 oder 13, dadurch gekennzeichnet, dass das Wasser im Wesentlichen entionisiert ist.Belt lubricant according to claim 12 or 13, characterized in that the water is substantially deionized. Bandschmiermittel gemäß einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass das Bandschmiermittel 0,01 mg/L bis 1 mg/L Chlordioxid umfasst.Belt lubricant according to one of claims 12 to 14, characterized in that the belt lubricant comprises 0.01 mg/L to 1 mg/L chlorine dioxide. Verwendung eines Bandschmiermittelkonzentrats gemäß einem der Ansprüche 1 bis 11 für Ketten- und/oder Bandschmieranlagen, vorzugsweise in der Lebensmittelindustrie.Use of a belt lubricant concentrate according to one of claims 1 to 11 for chain and/or belt lubrication systems, preferably in the food industry. Verfahren zum Schmieren der Fahrt eines Behälters entlang eines Förderbandes umfassend das Auftragen eines Bandschmiermittels gemäß einem der Ansprüche 12 bis 15.A method of lubricating the travel of a container along a conveyor belt comprising applying a belt lubricant according to any one of claims 12 to 15. Verfahren gemäß Anspruch 17, dadurch gekennzeichnet, dass das Förderband mit Prozesswasser in Kontakt gebracht wird, welches 0,01 mg/L bis 1 mg/L Chlordioxid umfasst.Method according to claim 17, characterized in that the conveyor belt is brought into contact with process water which comprises 0.01 mg/L to 1 mg/L chlorine dioxide.
EP22175062.3A 2022-05-24 2022-05-24 Conveyor lubricant concentrate Pending EP4282939A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992013050A1 (en) * 1991-01-16 1992-08-06 Ecolab Inc. Antimicrobial lubricant composition containing diamine acetate
WO2017162654A1 (en) * 2016-03-25 2017-09-28 Sopura S.A. Aqueous lubricating composition
WO2020168524A1 (en) * 2019-02-21 2020-08-27 Ecolab Usa Inc. Concentrated fatty amine salt conveyor lubricants

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992013050A1 (en) * 1991-01-16 1992-08-06 Ecolab Inc. Antimicrobial lubricant composition containing diamine acetate
WO2017162654A1 (en) * 2016-03-25 2017-09-28 Sopura S.A. Aqueous lubricating composition
WO2020168524A1 (en) * 2019-02-21 2020-08-27 Ecolab Usa Inc. Concentrated fatty amine salt conveyor lubricants

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