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
  • C10M173/00—Lubricating compositions containing more than 10% water
  • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • 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
  • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
  • C10M2207/141—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings 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
  • C10M2207/28—Esters
  • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
• • 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
  • C10M2207/28—Esters
  • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
• • 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
  • C10M2207/40—Fatty vegetable or animal oils
  • C10M2207/402—Castor oils
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • 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
  • 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
  • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
  • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
  • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
• • 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
  • C10N2030/62—Food grade properties
• • 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

Definitions

• the present invention is directed to a concentrate and lubricant solution for the use as a lubricant for the lubrication of conveyor belt systems in food and beverage plants.
• conveyor chains are made of different materials, i.e. plastico or metal.
• the conveyors link the various optional treatment stages of the filling process, such as e.g. unpacker, bottle washing machine, filler, sealer, labeler, packer, etc.
• the containers can come in a wide variety of forms, in particular glass and plastic bottles, cans, jars, casks, drink containers (KEG), paper and cardboard containers.
• the conveyor chainss must be lubricated by suitable means such that excessive friction on the containers is avoided.
• Diluted aqueous solutions containing suitable antifriction agents are conventionally used for lubrication.
• the conveyor chains are brought into contact with the aqueous solutions by immersion or spraying, for example, whereby reference is then made to splash lubrication plants or automatic belt lubrication sys-o terns.
• a lubricant is applied to the surface of the chains, whereby the friction coefficient of the chain with the container should not exceed a specific value. Otherwise the chain will be damaged involving further costs. Moreover, the container can fall down on the chains during5 transportation which will result in ceasing of filling said container since such bottles and cans have to be removed manually. Thus, a reliable lubrication of the chains with the lubricant used is very important.
• the chain lubricants that have been used so far and are still used today as lubricating agents for conveyor belt systems are mainly based on fatty acids in the form of their water-soluble alkali or alkanol amine salts or on fatty amines, preferably in the form of their organic or inorganic salts, i.e. their acetates, s
• Such lubricants are for example described in DE-A-36 31 953, EP-A-0 372 628, DE-A-39 05 548, DE-A-42 06 506, and WO 94/03562.
• amine-free lubricants are known and described for example in WO 03/027217 A1.
• This document relates to the use of an oil-in-water emulsion for lubricating a conveyor belt system. It contains wax esters, like cetyl palmitate,o hydrogenated castor oil, glyceryl stearate, ethoxylated behenyl alcohol, formic acids and betaines as zwitterionic amphoteric surfactants.
• Residues and abraded material can collect in this film and lead to hygiene problems and breakdowns in operation.
• container are made of glass or a plastic material such as a polyester.
• PET Poly(ethylene terephthalate)
• lubricants known in the prior art show a similar behavior. They are either suitable as lubricant for transporting container made of a plastic material or container made of glass. None of the compositions known in the prior art are capable of serving as lubricant in a bottling plant for all types of container material such as glass bottles, plastic bottles as well as cans.
• the technical problem underlying the present invention is the provision of a lubricant suitable for container such as bottles made of glass, bottles made of a plastic material such as polyester or cans in a bottling plant, whereby the chains used in the bottling plant may be made of a metal and/or a plastic material. Furthermore, the lubricant shall provide good adhesion to the chains, display good lubricating properties and shall form a film on the chains that can easily be removed, if necessary.
• a concentrate for use as chain lubricant comprising: a) at least one ester selected from the group consisting of monoesters and diesters represented by the aa) general formula (1) R 1 -COOR 2 (1) ab) general formula (2) R 1 OOC-R 3 -COOR 2 (2) ac) general formula (3) R 1 -COOR 3 OOC-R 2 (3), and mixtures thereof, whereby R 1 is a C ⁇ -C 22 -alkyl group or a Cs-C 22 -alkenyl group, R 2 is a C ⁇ -C 22 -alkyl group or a C 8 -C 22 -alkenyl group, R 1 and R 2 being the same or a different, R 3 is a C 2 -Ci 6 -alkylene group, and the sum of carbon atoms present in R 1 , R 2 and R 3 of each monoester or diester being at least 10, and b) at least one anionic surfactant
• R 1 is an alkyl group having 1 , 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ,
• R 1 is an alkenyl group having 8, 9, 10, 11 , 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 or 22 carbon atoms
• R 2 is an alkyl group having 1 , 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 , 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 or 22 carbon atoms
• R 2 is an alkenyl group having 8, 9, 10, 11 , 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 , or 22 carbon atoms.
• R 3 is an alkylene group having 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ,
• the concentrate further comprises at least one amphoteric surfactant.
• the sum of carbon atoms present in R 1 , R 2 and R 3 of each monoester or diester is at least 12, even more preferred at leasto 15, and most preferred at least 20.
• the concentrate may be an emulsion or microemulsion being preferably an oil-in-water or a water-in-oil emulsion.
• the concentrate comprises 0,001 to 20 wt.-% of the ester and/or 0,001 to 20 wt.-% of the anionic surfactant and/or 0,001 to 20 wt.-% of thes amphoteric surfactant, whereby optionally the balance is a liquid being preferably water.
• 0,01 to 15 wt-% of the ester is present in the concentrate.
• 0,1 to 12 wt.-%, even more preferred 0,15 to 10 wt.- %, preferably 0,2 to 8 wt.-% and even more preferred 0,25 to 6 wt.-% of the estero is present in the concentrate.
• 0,01 to 15 wt.-%, even more preferred 0,1 to 12, wt.-%, preferably 0,15 to 10 wt.-%, even more preferred 0,2 to 8 wt. % and most preferred 0,25 to 6 wt-% of the anionic surfactant is present in the concentrate.
• 0,01 to 15 wt.-%, even more preferred 0,1 to 12, wt.-%, preferably 0,15 to 10 wt.-%, even more preferred 0,2 to 8 wt. % and most preferred 0,25 to 6 wt-% of the amphoteric surfactant is present in the concentrate.
• the ester is preferably selected from the group consisting of methyl ester or isopropyl ester of fatty acids having 12 to 22 carbon atoms, methyl laura- te, methyl stearate, methyl oleate, methyl erucate, isopropyl palmitate, isopropyl myristate, isopropyl stearate, n-butyl stearate, n-hexyl laurate, n-decyl oleate, isooctyl stearate, isononyl palmitate, isononyl isononanoate, 2-ethylhexyl palmitate, 2-ethylhexyl laurate, 2-hexyldecyl stearate, 2-octyldodecyl palmitate, oley oleate, oleyl erucate, erucyl erucate, cetyl palmitate, behen
• the anionic surfactant is preferably selected from the group consist- ing of sulfonate salt, alkali sulfonate salt, alkyl benzene sulfonic acid, alkali alkyl benzene sulfonate, alkyl sulfonic acid, alkali alkyl sulfonate, alkali alkyl sulfate, alkali alkenyl sulfate, fatty acid ether sulfate, fatty alcohol sulfonate, secondary alkane sulfonate sodium salt and mixtures thereof.
• the amphoteric surfactant is preferably selected from the group consisting of ampholyte, betaine, alkylbetaine, N-alkylbetaine, glycinate, am- phoacetate, amphodiacetate, hydroxysultaine, amine oxide, lecithine, carboxyclic acid, sphingomyceline, amino alkene acid, sodium alkyl iminopropionate and mixtures thereof.
• the concentrate further comprises at least one glyceride selected from the group consisting of triglyceride, diglyceride, monoglyceride, fatty acid triglyceride of fatty acids having 8 to 22 carbon atoms, glyceryl stearate and mixtures thereof.
• the glycerides can be naturally occurring vegetable oils such as olive oil, raps seed oil, sunflower oil, soy oil, peanut oil, almond oil, palm kernel oil or the fluid part of coconut oil or palm kernel oil.
• the glycerides can be of animal occurrence.
• the glycerides are castor oil, prefer- rably hydrogenated castor oil.
• the mono and diesters and glycerides as oily components of the composition according to the present invention are liquid at a temperature of 20 °C. It is also possible that higher melting fats and esters of the general formulae (1), (2) or (3) as given above are used in an amount so that the mixture of the oily compounds is liquid at a temperature of 20 °C.
• the concentrate according to the present invention comprises of from 0,015 to 15 wt.-% of the glyceride.
• glyceride Preferably, 0,05 to 10 wt-%, even more preferred 0,1 to 5 wt.-%, even more preferred 0,2 to 3 wt.-% and most preferred 0,3 to 2 wt.-% of the glyceride is present in the concentrate.
• the concentrate further comprises a hydrocarbon oil, whereby preferably 0,01 to 15 wt.-% of the hydrocarbon oil, more preferred 0,015 to 10 wt.-%, even more preferred 0,05 to 5 wt.-%, most preferred, 0,1 to 3 wt.-% of the hydrocarbon oil is present in the concentrate.
• 0,2 to 2 wt-% and even more preferred 0,3 to 1 ,5 wt-% of the hydrocarbon oil is present in the concentrate.
• the concentrate may comprise at least one further emulsifier being different from the compounds as defined above.
• the emulsifier is selected from the group consisting of nonionic emulsifier, ethylene oxide adducts with fatty alcohols having 16 to 22 car- - o -
• the further emulsifier is present in the concentrate according to the present invention, preferably 0,005 to 20 wt-% of the emulsifier is present in the concentrate. Preferably 0,01 to 15 wt-%, more preferred 0,025 to 10 wt-%, even more preferred 0,05 to 5 wt-% and most preferred 0,075 to 3 wt-% of the emulsifier is present in the concentrate.
• the concentrate may comprise a further co-emulsifier, whereby the co-emulsifier is preferably of the type of a saturated fatty alcohol having 16 to 22 carbon atoms and/or a partial ester of polyols having 3 - 6 carbon atoms with a fatty acid having 14 to 22 carbon atoms.
• the co-emulsifier is preferably of the type of a saturated fatty alcohol having 16 to 22 carbon atoms and/or a partial ester of polyols having 3 - 6 carbon atoms with a fatty acid having 14 to 22 carbon atoms.
• the concentrate may further comprise at least one additive selected from the group consisting of disinfectant, preservative, thickener, solubilizer, antifoaming agent, corrosion inhibitor, alkaline substance, sequestering agent, complexing agent and mixtures thereof.
• Preferred preservatives are formic acid, benzoic acid, and peracetic acid.
• Another suitable additive is preferably glyceride stearate, glycerine diglycerine, a diglycerine monoester, a glycerine diester, glycerine and mixtures thereof.
• a preferred disinfectant is selected from the group of alcohols, aldehydes, antimicrobial acids, carboxylic acid esters, acid amides, phenols, phenol derivatives, biphenylenes, biphenyl alkanes, urea derivatives, oxygen acetales, nitrogen acetales, oxygen formales, nitrogen formales, benzamidines, isothi- azolines, phthalimide derivatives, pyridine derivatives, antimicrobial surface active compounds, guanidines, antimicrobial amphoteric compounds, quinolines, 1,2- dibromo-2,4-dicyano butane, iodo-2-propynyl-butyl-carbamate, iodine, iodophores, peroxides, peracids, peracetic acid, CI0 2 , quatenary ammonium compounds, glu- coprotamine and mixtures thereof.
• the present invention is directed further to a lubricant solution com- prising the concentrate as defined above and a suitable diulent.
• the diluent is preferably water and a degree of dilution of the concentrate with water is preferably of from 1 :20 to 1 :5.000. In another preferred embodiment the degree of dilution of the concentrate with water is of from 1 :30 to 1 :2000, more preferred 1 :40 to 1 :1000 and most preferred 1 :50 to 1 :500.
• the concentrate or the lubricant solution according to the present invention can be used as a lubricant.
• a chain being preferably a part of a bottling plant which is preferably a conveyer chain or a conveyer belt is lubricated with the concentrate or lubricant solution according to the present invention.
• the chain has an outer surface comprising a metal and/or a plastic material. With said chain container such as bottles and/or cans are transported.
• the container or bottles are preferably made of glass or a plastic material, being preferably a polyester such as poly(ethylene terephthalate) or polycarbonate, poly(ethylene naphthenate) or polyurethane.
• the container such as cans are made of a metal.
• the bottle is a refutable bottle being preferably a refillable plastic bottle such as a refillable poly(ethylene terephthalate) bottle (REFPET).
• the container being preferably bottles and/or cans are empty or filled with preferably food or beverage
• the concentrate or lubricant solution is used as antistatic agent.
• a further object of the present invention is the provision of a process of conveying container being preferably bottles and/or cans on a chain being preferably a conveyer chain or a conveyer belt, whereby the concentrate or lubricant solution is applied to the chain, preferably on the area of the chain with which the container being preferably bottles and/or cans are transported.
• the concentrate or lubricant solution can be applied to the chain by application means customary to a person skilled in the art.
• the concentrate or lubricant solution is sprayed to the chain by means of a nozzle or applied by immersion of the chain.
• the concentrate or lubricant solution can be applied to the bottom of the container to be conveyed. This can be done by spraying or immersing the bottom of the container in the concentrate or lubricant solution.
• the concentrate or lubricant solution is not applied continuously but periodically to the chain.
• the time in which the concentrate or lubricant solution is applied to the chain is shorter than the time in which no concentrate or lubricant solution is applied to the chain.
• the time in which no concentrate or lubricant solution is applied to the chain is twice as long, preferably three times as long, more preferred four times as long and most preferred five times as long as the time in which the concentrate or lubricant solution is applied to the chain.
• the sum of the time in which the concentrate or lubricant solution is applied to the chain with the time in which the concentrate or lubricant solution is not applied to the chain is less than 10 minutes, more preferred less than 8 minutes, even more preferred less than 6 minutes and most preferred less than 4 minutes.
• the concentrate and lubricant solution according to the present invention is superior compared with the compositions known in the prior art. Due to an extremely high lubricant persistency on the chains such as conveyor chains or conveyor belts compared with conventional state of the art techniques the lubri- cant dosage can be adjusted very flexibly to approximately 1 minute dosage and 5 minutes pause. The frequency of dosing can be extended according to the customer's condition and demands to a wider time frame or to a combination of lubrication dosage, followed by pure water dosage until the lubrication film is used up.
• the concentrate and lubricant solution according to the present invention has an excellent emergency lubrication behavior, which means that a dried lubrication film is capable of lubricating sufficiently. Moreover, a dried lubrication film can be reanimated only with a small amount of water.
• the formulations according to the present invention are foam-free or very low on foam so that very high use-concentrations during the application are possible.
• a cleaning and/or disinfecting substance can be integrated into the concentrate or lubricant solution.
• a further advantage of the concentrate and lubricant solution according to the present invention is that the lubricant comprises compounds only which are compatible with milk, soft-drinks and beer.
• the new concentrate and lubricant solution offers an environmentally favorable concept with significant lubricant and water savings up to 70 to 80 % which influences also, to a large extent, waste water treatment costs and provides energy saving opportunities.
• the new concentrate and lubricant solution according to the invention displays a new range of amine free lubricants for all kind of containers and is suitable for plastic and metal conveyors. It can be applied as a one part solution with integrated disinfectants as well as a two component system in combination with a disinfecting product.
• the lubrification is excellent compared to the known amine acetate lubricants.
• the lubricant has high water hardness and ion compatibility.
• the concentrate was manufactured by mixing the ingredients given in table 1 according to methods known to a person skilled in the art. First, Lamesoft ® PW 45 BENZ, the alkyl betaine and the secondary alkane sufonate sodium salt are mixed. Subsequently water is added and the obtained solution is stirred. At last formic acid is added under stirring. Optionally, the concentrate can be filtered at any step of production of the concentrate. Table 1
• Lamesoft ® PW 45 BENZ was purchased from Cognis Deutschland GmbH & Co. KG and is produced according to the teaching of EP 0 345 586, (emulsion of nonionic wax-like constituents and emulsifier comprising >20-40 wt-% cetyl palmitate, >5-10 wt-% beheneth-10, >1-5 wt-% hydrogenated castor oil, >1-5 wt-% glyceryl stearate, > 40-70 wt-% water, 0,2 wt-% benzoic acid).
• Lamesoft ® PW 45 can be used (same composition as Lamesoft ® PW 45 BENZ with the exception that formic acid is present instead of benzoic acid)
• the concentrate according to table 1 was diluted with water in a ratio of concen- trate to water of 1 :333 (0,3 wt-% of the concentrate in water) to obtain a lubricant solution for use as lubricant in the test run.
• the obtained lubricant solution was applied to a conveyor chain of a bottling plant by means of a nozzle.
• the bottling plant had a conveyer chain made of metal.
• An obstacle having a load cell was positioned at the end of the conveyor chain so as to measure the tensile stress of the bottles pushed against said obstacle.
• Either bottles made of glass or refillable bottles made of poly(ethylene terephthalate) (REFPET; 1 L or 1 ,5L volume) were transported with the conveyer chain.
• the lu- bricant solution was either dosed for 50 seconds to the chain and subsequently 50 seconds no lubricant solution was applied to the chain or the lubricant solution was applied for 1 minute to the chain followed by a 5 minute pause of dosage.
• the friction coefficient is the quotient of the tensile stress measured with the weight of the bottles pushed against the obstacle (table 2, 4 th column).
• the friction coefficient for the emergency run was measured as follows: The obtained lubricant solution was applied for 5 minutes to the running conveyor chain. Subsequently, for each test run several test bottles characterized in table 2 were positioned on the conveyor chain. The bottles were transported on the conveyor chain and pushed against the obstacle positioned at the end of the conveyor chain. For 35 minutes the lubricant solution was applied to the chain in a 10 second dosage / 10 second pause sequence.
• the friction coefficient for the emergency run is the quotient of the measured tensile stress with the weight of the bottles pushed against the obstacle (table 2, 5 th column).
• the lubricant solution according to the present invention offers a superior dosing concept.
• the efficiency of the concentrate and lubricant solution according to the present invention was not depending on the hardness of the water used.
• TNO Nutrition and Food Research Code of Practice, "Guidelines for an Industrial Code of Practice for Refillable Polyester Based Bottles", Edition 2, 2000).
• Three new test bottles made of PET are filled with tap water.
• the bottom of the bottles is dipped for a short moment (approx. 5 s) in the concentrate of table 1 so that the whole bottom of the bottle is in contact with the concentrate (approx. 5 cm deep). Excess concentrate is drained off the bottle (approx. 10s).
• each test bottle is pressurized with carbon dioxide via a connecting tube and the pressure is increased to approx. 7,5 bar for 30 s.
• the test bottles are stored under a constant pressure of 7,5 ⁇ 0,2 bar for 72 hours at room temperature and after- wards the pressure is decreased in approx. 30 s to zero.
• the bottles are emptied and rinsed thoroughly, first with tap water and finally with demineralized water. After drying, the bottom of each bottle is examined visually whether deviations (e.g. haziness, whitening, cracks) occurred.
• the concentrate of the present invention exhibited a superior test result compara- ble with the best lubricants known in the prior art.
• the test bottles were not detrimentally affected by the concentrate of the present invention. No cracks in the test bottles occurred.
• the test bottles remained clear which means that no haziness occurred during testing.
• the concentrate of the present invention is superior compared with the compositions known in the prior art.

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• 2003
  • 2003-07-24 AU AU2003258535A patent/AU2003258535A1/en not_active Abandoned
  • 2003-07-24 ES ES03817929T patent/ES2570277T3/es not_active Expired - Lifetime
  • 2003-07-24 WO PCT/EP2003/008125 patent/WO2005014764A1/en active Application Filing
  • 2003-07-24 EP EP03817929.7A patent/EP1646706B1/de not_active Expired - Lifetime

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