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
  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
• • 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
  • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
  • C10M2229/04—Siloxanes with specific structure
• • 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
  • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
  • C10N2050/01—Emulsions, colloids, or micelles
  • C10N2050/011—Oil-in-water

Definitions

• the invention relates to a chain lubricant or belt lubricant, a method for water-reduced lubrication of conveyor belts for bottles, cans, other containers and boxes and the use of the chain lubricant or belt lubricant for the water-reduced lubrication of such conveyor belts.
• Belt lubricants also referred to as chain lubricants, are used to transport glass bottles or cans, including beverage cans, other containers and boxes on conveyor belts. More recently, bottles made of plastic, here preferably polyethylene terephthalate, known as so-called PET bottles, have also been transported on the conveyor belts to a greater extent.
• the belt lubricants or chain lubricants should generally have emulsifying, cleansing and corrosion-inhibiting properties. In the field of the beverage industry, particularly high demands are placed on hygiene.
• the conveyor belts themselves can be made of steel or plastic. Basically, bottles made of glass or plastic, cans, boxes, barrels and cartons can be transported.
• a fundamental problem in the transport systems are deposits in the piping systems, nozzle sticks, nozzles and sieves.
• a disturbing foaming and streaks can be observed when using the belt lubricant in the high water dilution.
• EP-BI 204 730 discloses a lubricant composition to be used as a "dry" lubricant This composition is characterized by having an oil selected from silicone oils, vegetable oils, and / or mineral oils which are dispersed in an aqueous phase.
• the conveyor belts may be formed of a plastic material, such as polyacetal or polyamide.
• the lubricant composition with certain types of containers should also be usable on steel and thus metal sheets.
• silicone oils used the use of polydimethylsiloxanes having viscosities in the range from 1,000 to 30,000 mPas (cSt) is said to be suitable. In the embodiments, a silicone oil having a viscosity of 2,000 cSt is used.
• WO-A-2008/121720 deals in a very fundamental way with the problem of belt lubrication based on oil emulsions in aqueous phase.
• the oil emulsion is produced as a macroemulsion. It can be both an oil-in-water emulsion and a water-in-oil emulsion.
• all natural and / or synthetic oils are suitable for such an emulsion.
• natural oils include, for example, animal oils, vegetable oils, mineral oils, petroleum oils are named extra, and oils derived from coal or oil shale.
• Synthetic oils may be those that are synthesized from starting materials which blocks of larger and / or smaller molecules form when they are reacted with each other, and then in a temperature range from about 0 according to the disclosure of this prior art - 5O 0 C liquids form.
• a wide range of possible oils from a variety of organic chemistry fields covered by this definition will then be enumerated.
• the group of silicones in a wide viscosity range of 1 cSt - 1000OcSt at 25 0 C is called and mentioned as such a possible lubricant dimethylsiloxanes.
• Amines and amine compounds have found a wide range of applications in the field of industrial chemistry. Thus, the use of various amines or amine compounds is basically known in all of the mentioned groups of excipients. These are enumerated by this state of the art also in the mention of a whole series of possible connections with. Thus, e.g. in the area of agents for reducing biofilms in a belt lubrication plant, chelating agents such as EDTA and EGTA are mentioned. EDTA is usually present as ethylenediaminetetraacetic acid disodium salt. The ethylenediaminetetraacetic acid anion has a molecular weight of about 292.
• WO-A-2007/149175 a method for lubrication between containers and a conveyor belt has become known, which relates specifically to the promotion of thermoplastic containers in the form of PET containers or bottles and here to solve the problem of Stress Cracks in particular the use of a silicone oil with a viscosity of less than 50 cSt, most preferably suggests less than 5 cSt.
• the present invention is therefore based on the object of providing a lubricant composition which is also and especially suitable for the transport of glass bottles on metal webs. is suitable, and avoids the enormous water consumption of Najibandschmtechnik without requiring a costly plant conversion.
• a chain lubricant or tape lubricant with a silicone oil, a multifunctional nitrogen compound in the form of an amine and at least one adjuvant selected from the group consisting of anionic, nonionic, cationic and / or amphoteric surfactants as an emulsion in aqueous phase, wherein the amine is selected from amine salts, in which the cation comprises primary, secondary, tertiary, and / or quaternary amines and the anion as the organic radical has a molecular weight greater than 350, preferably greater than 400.
• a multifunctional nitrogen compound is understood as meaning such a nitrogen compound in which more than two functional groups are present in the entire molecule.
• This multifunctional nitrogen compound forms the cation of the tape lubricant of the invention or is contained therein.
• the multifunctional amine as a cation of this salt may in principle be a primary, secondary, tertiary and / or quaternary amine.
• amine salts based on fatty acids such as those having lauryl, myristyl, cetyl and stearyl radicals mentioned.
• fatty amines are mentioned, such as the Alkylprop- pylendiamine, Alkylpropylentriamine and other Alkylpropylenpolyamine.
• an anion of this amine salt which itself has no amine or an amine compound, is an organic radical having a molecular weight of greater than 350, preferably greater than 400, and particularly preferably greater than 500.
• Experimental results have shown that the high molecular weight anion positively influences the lubricating effect. It has also been found that the particular lubricating effect of the inventive chain lubricant or belt lubricant results from a synergistic interaction of the multifunctional nitrogen compound in the form of the amine salt with the silicone oil.
• anionic surfactants generally include alkylbenzenesulfonates (ABS) and fatty alcohol sulfates, as well as secondary alkanesulfonates (SAS).
• ABS alkylbenzenesulfonates
• SAS secondary alkanesulfonates
• ABS and SAS their property is to be mentioned, even with hard water to be used easily.
• these surfactants are characterized by good wetting properties.
• At least one of the surfactant contained in the belt lubricant may be the organic radical as the anion of the amine salt itself.
• nonionic surfactants of which in particular the polyalkylene glycol ethers or fatty alcohol ethoxylates, the fatty alcohol propoxylates and the alkylphenol ethoxylates may be mentioned by way of example.
• auxiliaries optionally the addition of a weak acid in a small amount as a solubilizer, a fragrance and / or possibly also a dye and preservatives in question.
• the inventive chain lubricant or belt lubricant is characterized by a very good material compatibility, also with respect to the usual printing inks on cardboard packaging, low foaming and independent of the water hardness present in each case. It is characterized in particular by excellent transport properties of glass bottles on metal chains.
• the silicone oil may be selected according to a preferred embodiment of polyalkyl, polyaryl and / or polyalkyl / polyarylsiloxanes and mixtures thereof.
• polydimethylsiloxane is known as the best-known and also suitable polysiloxane with regard to the polyalkylsiloxanes as the linear polysiloxane.
• polyaryl siloxanes this is diphenylsiloxane and further in particular in the field of polyalkyl / polyarylsiloxanes, the phenylmethylsiloxanes are to be emphasized as being suitable.
• amino-functional silicone oils are to be mentioned.
• the silicone oil according to a further embodiment has a viscosity of 200-70 cSt., Preferably 180-80 cSt. particularly preferably 120-90 cSt., Each at room temperature, on. It is surprising that silicone oils having a low viscosity have been found to be particularly suitable for use in belt lubrication because it is known that the siloxanes are more volatile with decreasing viscosity.
• Silicone oils with a viscosity of 50 and less cSt have accordingly proved difficult to handle in their own experiments.
• a silicone oil having a viscosity in the range of about 100 cSt has proven particularly useful.
• the chain lubricant or belt lubricant according to the invention preferably has a pH of between 6 and 8.5, preferably a pH of between 6.5 and 8.0.
• the composition according to the invention comprises 5-95% by weight of aqueous phase, 0.01-30% by weight of silicone oil, 0.01-40% by weight of the multifunctional amine compound in the form of a primary, secondary , tertiary and / or quaternary amine and 0.01 to 25% by weight of surfactant.
• the percentage by weight of the surfactant may also coincide with that of the amine compound when the organic radical is a surfactant as an anion of the amine salt.
• the invention also relates to a method for water-reduced lubrication of conveyor belts for bottles, cans, other containers and boxes, in which the advantages of the above-mentioned in connection with various embodiments Shaped chain lubricant or belt lubricant described come particularly to bear.
• said chain lubricant or belt lubricant is applied as an emulsion in the aqueous phase together with an addition of water of less than 30% by volume, preferably less than 20% by volume, at intervals on the surface of the conveyor belt.
• the aqueous phase mentioned in connection with the emulsion and the further required addition of water, also called additional water content must be strictly distinguished from one another.
• a particular advantage of the chain lubricant or belt lubricant according to the invention consists precisely in being able to save a considerable proportion of the water quantity conventionally used and required in conventional wet-belt lubrication in connection with the process according to the invention.
• the amount of water used for the wet-belt lubrication serves as a reference quantity of 100%. Accordingly, the additional water content required and used in the water-reduced lubrication according to the invention is understood as a fraction of the amount of water used in the wet-belt lubrication.
• An addition of water of less than 30% by volume, preferably less than 20% by volume thus corresponds to a water saving of more than 70% by volume, preferably more than 80% by volume. It corresponds to the method according to the invention that there should always be an addition of water, so that it can not be reduced to 0 vol .-%.
• the water savings are 70-85 vol.%, With 85-95 vol.% Being even more preferred.
• a point of water savings of about 85% by volume or slightly above a point at which the dosing, as used in the wet belt lubrication, can not be readily used, so that a plant conversion is required.
• This is partly due to the high pressure with which the belt lubricant must be applied to the conveyor in the field of dry belt lubrication, in order to obtain a sufficient amount of belt lubricant or chain lubricant. to ensure lubricant on the conveyor belt.
• the volumes to be applied are much lower, since only small to very small amounts of belt lubricant are needed.
• concentration ranges mentioned are higher than usually used in the field of wet belt lubrication. This circumstance can be more than compensated by the considerable water savings.
• the invention also relates to the use of the chain lubricant or belt lubricant described in various embodiments for the water-reduced lubrication of conveyor belts for bottles, cans, other containers and boxes in the beverage and food processing industry, the cosmetic and pharmaceutical industries.
• the bottles, cans, other containers and boxes may have any material selected from glass, plastic, cardboard or metal. It is particularly possible and therefore worth mentioning that the conveyor belt may be formed of metal and the contact with the container material glass takes place smoothly, in particular without particularly observed material abrasion of the conveyor belt.
• the inventive method can be used arbitrarily for the lubrication of conveyor belts made of metal or plastic .
• the invention will be explained in more detail using exemplary embodiments.
• the lubricant composition was prepared as an emulsion, and amounts are by weight unless otherwise specified.
• the products WEICO® COR and STERONAL-GR are used, which are commercially available from Tensid-Chemie GmbH in Muggensturm, Germany.
• a silicone oil in the form of a polydimethylsiloxane a nitrogen-containing compound based on alkylamine salts, which is used as a corrosion inhibitor, and a surfactant used as an emulsifier.
• a small amount of organic acid is included to adjust the pH.
• z. For example, acetic acid can also be added to adjust the pH.
• the pH of the emulsion thus obtained was adjusted to about 7.6.
• the viscosity was in the range of about 100 cSt.
• the emulsion was prepared and used in a mixing ratio of STERONAL-GR to WEICO® COR of 80:20, each in aqueous phase.
• the emulsion obtained according to Example 1 was used in this test run as a 3% dilution in water for the water-reduced strip Lubrication of metal straps intended to transport glass bottles.
• the emulsion was applied to the conveyor belts of metal, in this case of stainless steel, by spraying together with an additional water content of 15% by volume.
• reference value (100%) for the additional water fraction thus used the amount of water usually used in conventional wet-tape lubrication is used here, as in the following.
• any other method of application which is well known per se such as e.g. the brushing.
• the conveyor systems have automatic applicators.
• the application of the belt lubricant according to the invention was carried out at intervals, wherein an order in this experiment took about 3 seconds and then about 20 minutes. was paused. Only then did a new order take place. This is a difference to wet belt lubrication, which can also be continuous.
• the emulsion obtained according to Example 1 was used in this test run as a 7% dilution in water for metal belts for transporting glass bottles. The emulsion was again applied by spraying together with an additional water content of 20% by volume.
• the conveyor was designed for the passage of about 80,000 bottles per hour. Approximately 8 to 15 ml of the prepared emulsion were used in each case for lubricating the conveyor belts.
• the application of the belt lubricant according to the invention was carried out at intervals of 10 seconds each, wherein after application for about 20 minutes. was paused. Only then did a new order take place. 3. Application:
• the emulsion obtained according to Example 1 was used in this test run as a 5% dilution in water for the water-reduced belt lubrication of plastic tapes, which should be used to transport 0.5 1 PET bottles.
• the emulsion was applied to the conveyor belts by spraying together with an additional 15% by volume water content.
• the stress corrosion cracking was based on the work instructions CC (so-called Coca-Cola standard): Additives-Line Simulation; Version 1.0 of 15.10.98 determined. Table 1 shows that essentially no stress corrosion cracking could be detected. 0
• Table 1 Testing for compatibility with CC reusable PET bottles
• the emulsion obtained according to Example 1 was used in this test run as a 2.5% dilution in water. It was tested on metal bands to transport glass bottles in a brewery. The plant had 53 and 190 nozzles, with a throughput of 9,500 and 30,000 bottles per hour. The emulsion was applied again by spraying.
• the dry-film lubricant of Ecolab Deutschland GmbH which is also available as a silicone oil but has no polyfunctional nitrogen compound, was tested in the pilot plant by transporting several glass bottles on a stainless steel belt to give concentrations of 2.0 % and 10% of said belt lubricant concentrate used.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Lubricants (AREA)

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• 2008
  • 2008-11-07 DE DE102008056440A patent/DE102008056440A1/de not_active Withdrawn
• 2009
  • 2009-11-09 EP EP09764712.7A patent/EP2344613B1/de active Active
  • 2009-11-09 PL PL09764712T patent/PL2344613T3/pl unknown
  • 2009-11-09 US US12/998,602 patent/US20110269653A1/en not_active Abandoned
  • 2009-11-09 RU RU2011119926/04A patent/RU2605750C2/ru not_active IP Right Cessation
  • 2009-11-09 BR BRPI0921344A patent/BRPI0921344A2/pt not_active Application Discontinuation
  • 2009-11-09 MX MX2011004926A patent/MX2011004926A/es not_active Application Discontinuation
  • 2009-11-09 WO PCT/EP2009/007994 patent/WO2010052018A1/de active Application Filing
• 2011
  • 2011-05-09 CL CL2011001029A patent/CL2011001029A1/es unknown
  • 2011-05-09 EC EC2011011037A patent/ECSP11011037A/es unknown

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