DE4406195A1 - Use of fatty acid amidoalkylene aminocarboxylic acids and their water-soluble salts in aqueous lubricant solutions and their concentrates - Google Patents

Abstract

The invention concerns the use of fatty-acid amide alkyleneaminocarboxylic acids of the general formula (I), or water-soluble salts thereof, in aqueous lubricant solutions for conveyor lines in filling plants for foods and/or drinks, as well as concentrates for preparing such solutions.

Description

The present invention relates to the use of fatty acid amido alkyl lenaminocarboxylic acids or their water-soluble salts, if desired in connection with usual solvency mediators and other auxiliaries Substitutes in aqueous lubricant solutions for transport chains in Ab filling systems for food and / or beverages, in particular in bottles bottling plants. The invention further relates to the use of the Fettal kylaminopoly (alkylenamino) carboxylic acid anions in concentrates for use th of the aqueous lubricant solutions by dilution with water. The In particular, the invention relates to the use for lubrication and cleaning of automatic chain and belt lubrication systems that are used for filling Food, preferably beverages, in glass and plastic bottles (e.g. PET, PC), cans, glasses, barrels, beverage containers (KEG), Paper and cardboard containers and the like can be used.

In bottle cellars and barrel cellars of beverage companies as well as at the Ab Filling food is used for the transportation of the appropriate Ge usually loaded plate conveyor belts or other conveyor systems uses that with suitable aqueous lubricant preparations via immersion lubrication systems or more recently also via automatic belt lubrication systems lubricated and kept clean.

During dip lubrication systems, hardly any problems regarding the application technology niche properties in the choice of lubricant Precipitation of sparingly soluble salts and microbiological deposits in the nozzles and filters of the central lubrication systems the continuous Operation of filling food, especially beverages, considerably Lich disturb, so that the systems after a certain period of operation  must always be switched off and cleaned.

The chain lubricants previously used as lubricants are based on egg on the other hand on fatty acids in the form of their water-soluble alkali or alka nolamine salts or on fatty amines in the form of their organic or inorganic salts.

While both substance classes can be used in splash lubrication without any problems are shown in the central chain lubrication systems common today a number of disadvantages. For example, DE-A-23 13 330 describes lubricants based on soap, the aqueous mixtures of C₁₆-C₁₈ fatty acid salts and contain surface-active substances. Such lubricants on Sei fenbasis have the following disadvantages:

• 1. There is a reaction with the water hardness, i.e. the alkaline earth Ions, and other water constituents to form sparingly soluble Metal soaps, the so-called primary alkaline earth soaps.
• 2. There is a reaction between these lubricants and soaps base and carbon dioxide dissolved in water or the product to be filled.
• 3. The application solution created in this way is always germ-promoting.
• 4. When using hard water, ion exchangers are used to remove water curing required, which means an additional source of germs, or but the use of highly complexing agent products, what how which is ecologically questionable.
• 5. There is increased foam formation, which is particularly problematic Bottle Inspector (automatic bottle control) causes and closes a possible penetration of these lubricants into the transport area relationship leads.
• 6. Most of these products contain solvents.
• 7. The cleaning effect of these products is poor, so that a sepa rate discontinuous cleaning is always necessary.
• 8. Such soap-based lubricant preparations show a pH-off pending performance.
• 9. Soap-based lubricant preparations continue to show what temperature dependence.
• 10. Soap-based lubricants have only a limited shelf life, especially at low temperatures.  
• 11. The EDTA (ethylenediaminetetraacetate) contained in many products is known to be poorly biodegradable.
• 12. Such soap-based lubricant preparations are not for all transport goods made of plastic are suitable, as they This means in many cases to stress corrosion cracking on the cargo is coming.

In addition to these soap-based lubricants, are otherwise mainly those based on fatty amines. This is how DE-A-36 31 describes it 953 a method for lubricating chain-shaped bottle conveyor belts in beverage bottling plants, especially in breweries, and for Clean the tapes using a liquid detergent is characterized in that the chain-shaped bottle conveyor belts with Belt lubricants based on neutralized primary fatty amines preferably have 12 to 18 carbon atoms and an unsaturated fraction of contain more than 10%, lubricates.

From EP-A-0 372 628 are fatty amine derivatives of the formulas

known as a lubricant, wherein
R¹ is a saturated or unsaturated, branched or linear alkyl group with 8 to 22 C atoms;
R² is hydrogen, an alkyl or hydroxyalkyl group having 1 to 4 carbon atoms or -A-NH₂;
A is a linear or branched alkylene group with 1 to 8 carbon atoms; and
A¹ is a linear or branched alkylene group having 2 to 4 carbon atoms.

AU-A-510 524 describes aqueous chain lubricants, the N-fatty alkyl Contain β-aminopropionic acids. The concentrates contain around 10% by weight of the Active ingredient and are used with water by a factor of 100 to 300 diluted.  

In addition, DE-A-39 05 548 lubricants based on N-alkylated fatty amine derivatives are known to have at least one secondary and / or contain tertiary amine.

The main disadvantages of these lubricants are their reaction with anions of the Water, especially with sulfates, bicarbonates, phosphates and carbona alkaline water and other water components. Farther reactions with residues of drinks can occur (formation of black deposits).

In addition, these fatty amine-based lubricants are unfree proper foaming behavior. So the lubricants of EP-A-0 327 628 tend too much foaming, which means that the good transported on the belt. Lubricant according to DE-A-39 05 548 have a rather low foam formation, which leads to leads to rapid running of the applied lubricating film.

The main disadvantages of the lubricants mentioned above are therefore on the one hand the strong water dependence of soap-based lubricants and others on the other hand, the regularly necessary system cleaning when using Lubricants based on fatty amines that also pass through the water ingredients is conditional. The precipitations that occur in both processes of State of the art must be removed. To remove a simple acid-base reaction is used. In the case of soaps For this purpose, products based on fatty acids become alkaline, complexing agents detergents containing tel and used as technical equivalents for products based on fatty amines, organic or inorganic acids used as a cleaner.

Finally, other chain lubricants are known in the prior art, that do not have some of the disadvantages described above. So be writes EP-A-0 044 458 lubricant preparations which are practically free of fatty acid soaps and which are still a carboxylated nonioni cal surfactant and an acyl sarcosinate. The pH of these products is 7 to 11 and is therefore preferably neutral to alkaline Area.  

DE-A-38 31 448 finally relates to aqueous, clear water-soluble fenefree lubricant preparations, a process for their manufacture and the use of these lubricant preparations, especially as Lubricant for plate conveyor belts used to transport glass fla or polyethylene terephthalate bottles. The essentially neutral aqueous lubricant preparations (pH in the range from 6 to 8) contain alkylbenzenesulfonates, alkoxylated alkanol phosphates and alkane carboxylic acids, optionally in addition to conventional solubilizers, solution agents, defoamers and disinfectants.

However, these two amine-free products also show the following Disadvantage:

• 1. They are unfavorable from a microbiological point of view because they stand out create excellent growth conditions for microorganisms.
• 2. Furthermore, they show only a low cleaning power.
• 3. Finally, they also have something difficult to control Foaming behavior.

The international patent application WO 90/10053 describes lubricants based on linear poly (alkylene amine) derivatives of fatty amines, which the Avoid the disadvantages mentioned above largely. The operational concentration tion of these fatty amine derivatives in chain lubricant concentrates lies in Range of 10% by weight. The use of such means leads to the requ use concentrations of 0.1 to 0.5% to a considerable COD pollution of the wastewater (COD = chemical oxygen demand).

The present invention is therefore based on the object of a new one Lubricant preparation, especially a chain lubricant, ready make, which does not have the disadvantages of the prior art and to reduce wastewater pollution in significantly reduced applications concentrations can be used. This means: such lubrication medium should have a good coefficient of friction at a low concentration, ie an excellent lubricating effect, a metered foaming behavior, a have good clear water solubility and a good cleaning effect.

For the purposes of the present invention, the term "clear water solubility"  coupled with the insensitivity of the lubricant components to About ingredients contained in natural water such as Calcium and magnesium. For example, is the clear water solubility one Lubricant formulation is not very pronounced, so can take longer Plant downtime, for example over the course of a weekend, such Formulations react with the water ingredients. The resul here precipitations and cloudiness in the application solutions of Lubricants will clog the filters and in the short to medium term Belt lubrication system nozzles.

Surprisingly, it has been found that lubricants are the appropriate grease acid amidoalkylene aminocarboxylic acids or their water-soluble salts ent maintain a significantly better solubility in clear water and an application have technically more favorable foaming behavior than lubricants on Ba sis of unsubstituted and substituted fatty amines and in particular the required lubricating effect with significantly reduced operating concentrations trations and thus reduced wastewater loads.

The present invention thus relates to the use of fatty acid amidoalkylene aminocarboxylic acids or their water-soluble salts of gen my formula

in which
R is a substituted or unsubstituted, linear or branched, saturated or mono-, di- or tri-unsaturated alkyl radical having 8 to 20 carbon atoms, the substituents being selected from amino, imino, hydroxyl and carboxy groups,
R ′ is hydrogen, an alkyl group with 3 to 12 carbon atoms or a group Y,
Y is a substituent - (CH₂) _p -OX or a substituent - (CH₂) _m -COOM,
X is hydrogen or a group - (CH₂) _m -COOM,
M independently of one another hydrogen, an ammonium, alkylammonium or alkali metal cation,
n 1, 2 or 3,
m independently of one another 1, 2 or 3,
p 1, 2 or 3
x 0 or 1
mean, individually or as a mixture with one another in aqueous lubricant solutions for transport chains in filling systems for food and / or beverages and in concentrates for preparing these aqueous lubricant solutions.

In the above general formula (I) come as substitutes ten R thus the following radicals in question: n-octyl, n-nonyl, n-decyl, n-Un decyl, n-dodecyl, n-tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl, n-heptadecyl, n-octadecyl, n-nonadecyl, n-eicosyl and the branched chain term isomers of the alkyl radicals mentioned. Instead of the saturated alkylre R can also be the corresponding - mono- or poly-unsaturated Mean alkyl radicals, which can also be linear or branched. The radicals mentioned above can also be substituted, where as Substituents one or more amine, imine, hydroxy or carboxy groups come into question.

Preferred fatty acid amidoalkylene aminocarboxylic acids or their  water-soluble salts of the general formula (I), in which R is a linear, unsubstituted, saturated or unsaturated, preferably a sown tiger, alkyl radical with 8 to 20 carbon atoms, preferably with 12 to 18 carbon atoms men means. As with extraction from oleochemical raw materials fen usual, mixtures with different alkyl radicals are present.

Compounds of the general formula (I) are preferably used where R 'is hydrogen.

Furthermore, such fatty acid amidoalkylene aminocarboxylic acids or their water-soluble salts are preferred, in which n denotes the number 2, ie Contain ethylenediamine groups. Preferred as the carboxylic acid group uses an acetic acid group, d. H. the index m of the general formula (I) preferably has the value 1. The index p is preferably 2, i. i.e. it ethylene oxide derivatives are used.

Preferred compounds of the general formula (I) are thereby furthermore characterized in that x = O, d. that is, the compounds can be formulated when

in which
Y is preferably a group - (CH₂) ₂-O-CH₂-COOM, where M has the meaning given above and is preferably in both cases an alkali metal cation, in particular a sodium ion.

Further preferred compounds of the general formula (I) as well as those of the general formula (II) are characterized in that
Y is a group - (CH₂) ₂-OH and M is preferably an alkali metal cation, in particular a sodium ion.

Compounds of the general formula (I), for which x = 1 applies and that to can be formulated as

represent betaines, which are derivatives of compounds of the general Formula (II) can be considered.

The acid anions of the general formula (I) can be in the form of their water-soluble ammonium, alkylammonium or alkali metal salts, preferably as their alkali metal salts and especially their sodium salts be set.

The term "water-soluble" is to be understood to mean that the salts below the preferred use concentrations in the aqueous lubricant solutions form clear solutions from 10 to 200 ppm acid anions.

If in this connection from the concentration of carboxylic acid anions is the concentration of this used Anions meant. Due to hydrolysis reactions, it is expected that at the pH values of the ready-to-use aqueous lubricant solutions, the are in the range from 5 to 9, only a part of the introduced carboxylic acid re anions are free anions, while another part of the un dissociates acid. This applies accordingly to the be below wrote concentrates, the pH values of which were preferably in the range 4-7 The quantitative ratio between acid anions and undissociated acid depends on the given concentration and pH of the aqueous solution solutions are known to depend on the acid strength of the acid used. For Setting the pH is preferably carried out using lower carboxylic acids such as acetic acid or citric acid.

It is technically common to prepare the aqueous lubricant solutions  to distribute concentrates on site that the user needs Concentration can be adjusted by diluting with water. Accordingly it is within the scope of the present invention that the fatty acid amidoal kylenaminocarboxylic acids or their water-soluble salts of the general Formula (I) in total concentrations between 2 and 10% by weight in conc occurred used to prepare aqueous lubricant solutions can be diluted with water by a factor between 200 and 1000. For the carboxylic acids to be used preferably in these concentrates or their salts apply the above.

As auxiliaries and / or additives in the concentrates according to the present solubilizers are particularly suitable for the invention for example alcohols, polyalcohols, ethers or polyethers, in particular Isopropanol, butyl glycol, butyl diglycol or ethylene glycol ether and al carboxylated carboxylic acids or their esters. The amount of to use Solubilizer depends in individual cases on the fat used acid amidoalkylene aminocarboxylic acids or their water-soluble salts; of the In individual cases, the required amount of solubilizer becomes a specialist determine by trying. In general, additions to solution ver average in the range from 3 to 20% by weight, based on the overall formulation sufficient.

As auxiliaries and / or additives according to the present invention furthermore in particular nonionic and / or amphoteric surfactants, for example alkoxylated fatty amines and alkoxylated fatty alcohols. These Surfactants can improve the wetting of the chains and plate conveyor belts if this should be necessary in individual cases. In general are surfactant additives in the range of 1 to 10 wt .-%, based on the Ge velvet formulation, sufficient for this.

Furthermore, the concentrates preferably contain those for pH regulation required acids, in particular lower mono- or polybasic carbon acids (2-5 C atoms) such as acetic acid, propionic acid, oxalic acid re, citric acid or tartaric acid. Acid concentrations from 1 to 10% by weight are usually sufficient.  

As auxiliaries and / or additives according to the present invention also substances that have an antimicrobial potential. For example, these can be: quaternary ammonium compounds, amphote re compounds, biguanides, aldehydes. These additives can make the antimicro biological effect of the formulation in the concentrate and in the application ser.

With regard to an optimal dosing option, it is advantageous that the lubricant concentrates have a dynamic viscosity of less than 300 mPa · s, in particular less than 150 mPa · s and particularly preferred in the range of 20 to 100 mPa · s - each at 20 ° C - to their To ensure pumpability. A separate adjustment of the viscosity the values mentioned are generally not necessary or have been carried out optionally by adding suitable amounts of the diluent ser or a solubilizer.

In contrast to standard screen, the products according to the invention cause no stress corrosion cracking in plastic containers and can Therefore, especially for PET containers (PET = polyethylene terephthalate), PC containers (PC = polycarbonate), Geracote or PVC containers (PVC = polyvinyl chloride) are used. Accordingly, the Lubricant solutions according to the invention as a chain lubricant for conveying or for the transport of containers or bottles made of glass, plastic layered glass, plastics, especially polyethylene terephthalate or Polyvinyl chloride, tinplate or aluminum or painted or art fabric-coated containers made of these metals are used.

In addition, the lubricant concentrates and solutions, however, also advantageously as so-called cooling lubricants at Find metalworking use.

The products according to the invention are compared to the known lubricants agents based on fatty amine are significantly more soluble in clear water, show that In addition, a metered foam behavior and excellent lubrication effect at low use concentration. It can be done by Choice of the amine or anion the desired application egg  properties of the lubricant concentrate or the aqueous lubricant Target solution.

For the purposes of the present invention, the term "clear water soluble speed "coupled with the insensitivity of the lubricant components against ions contained in natural waters, such as sulfate, bicarbo nat, calcium, magnesium and the like. For example, is the Klarwas Solubility of a lubricant formulation is not very pronounced can occur in the event of a long downtime, for example in the course of a week Chenende, such formulations react with the water ingredients Ren. The resulting precipitations and cloudiness in the users Lubricant solutions lead to short-term to medium-term solutions plug the filters and nozzles of the belt lubrication system.

Fatty acid amidoalkylene aminocarboxylic acids or their water-soluble salts, the general formulas (II) and / or (III) given above correspond, can be prepared by methods known from the literature and are also offered in part as commercial products, at for example from the company Zschimmer & Schwarz under the name "Ampho tensid CT "and" Amphotensid GB 2009 "(Cocoamphocarboxylglycinat) or from from the company Hüls under the name "Ampholyt JA 120" (fatty acid amido ethyl N- (2-hydroxyethyl) glycine Na salt) and "Ampholyt JA 140".

The following examples illustrate the present invention explained.

Examples

Examples 1 to 8 according to the invention show Formulations of lubricants medium concentrates as well as various application-related data that are related to the corresponding dilute aqueous application solutions were determined the, these application solutions the respective concentrates in one Contained amount of 0.2 to 0.3 wt .-%. More detailed explanations of each because of certain application data - friction, foam behavior, clear water solubility and emergency running time - can be found next hend. Comparative examples 1 to 5 serve for comparison.  

Obtain all percentages in the formulation examples below per cent by weight.

The tests for measuring the frictional resistance, hereinafter referred to as "coefficient of friction", were carried out on a pilot bottle conveyor belt under the following conditions:
Measurement of the frictional resistance of 20 0.5 l Euro beer bottles filled with water as tensile stress with a dynamometer.
Bottle transport speed: approx. 1 m / s
Spraying the bottle conveyor belt with 0.2 wt .-% Bandschmiermit tell solution, as mentioned in the examples.
Spraying performance of the nozzles: 4 l / h, 1 nozzle per belt.

The coefficient of friction "µ" given below is the quotient the measured tensile stress for a bottle to the weight of the bottle in Grams.

Furthermore, the products were made with hard water (16 ° d) according to the regulations tested according to DIN 53 902.

The foam behavior is assessed according to the following classes:

0 = foam-free
1 = isolated foam bubbles
2 = low foaming, not disturbing
3 = foaming, disturbing
4 = strong foaming, not acceptable, foam under the tape

The coefficient of friction should be less than 0.15 for sufficient lubrication. At Exceeding 0.15 leaves the lubricating effect and thus the flawless Transport significantly after.

The clear water solubility of the application solutions should also have a longer test period to be guaranteed to build up deposits in Kugelven til filters, nozzles, spray and distribution system, belt and goods to ver avoid. For this purpose, a 0.3 wt .-% solution in 16 ° d water for 72 h  stored and then assessed visually.

The foam development should be low because excessive foam is not only the workflow (automatic bottle inspector) and the work safety unit (danger of slipping), but also the label chen and can penetrate into the not yet closed vessel. In addition the coefficient of friction deteriorates due to excessive foaming tendency. A Low foaming, on the other hand, is an advantage because it is better Distribution of the lubricant on the conveyor belts conditional.

Under test conditions, which are also used to determine the coefficient of friction and of the foaming behavior were used after a running time of 30 min the dosage of the chain conveyor lubricant is turned off. Of at this point, the bottles are only replaced by adhering chain transfer portband lubricant lubricated. The time was measured in which the Lubrication maintained without significant deterioration in the coefficient of friction was holding. The end of the experiment (emergency running time) was determined by if the coefficient of friction had increased by 50% compared to the original value.

Example 1

6.00% N-fatty acid amidoethyl-N- (2-hydroxyethyl) glycinate sodium salt
4.00% acetic acid
90.00% water

Coefficient of friction: µ = 0.09, foaming behavior = 1
Clear water solubility: almost clear, emergency running time = 14 min

Example 2

6.00% N-fatty acid amidoethyl-N- (2-hydroxyethyl) glycinate sodium salt
4.00% acetic acid
6.00% fatty acid amidoalkyl betaine
84.00% water

Coefficient of friction: µ = 0.09, foam behavior = 2
Clear water solubility: absolutely clear, emergency running time = 13 min

Example 3

6.00% N-fatty acid amidoethyl-N- (2-hydroxyethyl) glycinate sodium salt
3.00% citric acid
91.00% water

Coefficient of friction: µ = 0.10, foam behavior = 2
Clear water solubility: almost clear, emergency running time = 13 min

Example 4

6.00% N-fatty acid amidoethyl-N- (2-hydroxyethyl) glycinate sodium salt
5.00% butyl diglycol
4.00% acetic acid
85.00% water

Coefficient of friction: µ = 0.10, foam behavior = 2
Clear water solubility: absolutely clear, emergency running time = 13 min

Example 5

6.00% cocosamidoethyl hydroxyethyl carboxyglycinate
3.00% acetic acid
91.00% water

Coefficient of friction: µ = 0.09, foam behavior = 0
Clear water solubility: almost clear, emergency running time = 15 min

Example 6

6.00% cocosamidoethyl hydroxyethyl carboxyglycinate
3.00% acetic acid
4.00% fatty acid amidoalkyl betaine
87.00% water

Coefficient of friction: µ = 0.09, foaming behavior = 1
Clear water solubility: absolutely clear, emergency running time = 14 min

Example 7

6.00% cocosamidoethyl hydroxyethyl carboxyglycinate
2.00% citric acid
92.00% water

Coefficient of friction: µ = 0.10, foam behavior = 1
Clear solubility: almost clear, emergency running time = 14 min

Example 8

6.00% cocosamidoethyl hydroxyethyl carboxyglycinate
5.00% butyl diglycol
3.00% acetic acid
86.00% water
Coefficient of friction: µ = 0.10, foam behavior = 1
Clear solubility: absolutely clear, emergency running time = 14 min

Comparative Example 1 (soap-containing chain lubricant)

59.00% water
10.00% butyl diglycol
15.00% fatty acid (oil / linole)
9.00% ethylenediaminetetraacetate-Na4
4.00% monoethanolamine
3.00% potassium hydroxide

Coefficient of friction: µ = 0.12, foam behavior: 3-4
Clear water solubility: with 1% use up to 12.5 ° d clearly water soluble
Emergency run time: 5 min

Comparative Example 2 (alkylamine-based chain lubricant)

4.00% N, N-dimethyl-N-laurylammonium acetate
8.00% lauryl propylene diammonium acetate
88.00% water

Coefficient of friction: µ = 0.10, foam behavior = 1
Clear solubility: opal, run time: 7 min

Comparative Example 3

15.00% N-coconut alkylaminopropionic acid
85.00% water

Coefficient of friction: µ = 0.14, foam behavior = 2
Clear solubility: opal, emergency run time: 10 min

Comparative Example 4

15.00% sodium N-laurylaminodipropionate
14.00% acetic acid
3.00% C12-14 fatty alcohol with 5EO / 4PO
68.00% water

Coefficient of friction: µ = 0.10, foam behavior = 2
Clear solubility: absolutely clear, emergency run time: 15 min

Comparative Example 5

15.00% N-coconut alkylaminopropionic acid
3.00% lauryl ether phosphoric acid ester
83.00% water

Coefficient of friction: µ = 0.13, foam behavior = 4
Clear solubility: opal, run time: 7 min

Claims (14)

1. Use of fatty acid amidoalkylene aminocarboxylic acids or their water-soluble salts of the general formula in which
R is a substituted or unsubstituted, linear or branched, saturated or mono-, di- or tri-unsaturated alkyl radical having 8 to 20 carbon atoms, the substituents being selected from amino, imino, hydroxyl and carboxy groups,
R ′ is hydrogen, an alkyl group with 3 to 12 carbon atoms or a group Y,
Y is a substituent - (CH₂) _p -OX or a substituent - (CH₂) _m -COOM,
X is hydrogen or a group - (CH₂) _m -COOM,
M independently of one another hydrogen, an ammonium, alkylammonium or alkali metal cation,
n 1, 2 or 3,
m independently of one another 1, 2 or 3,
p 1, 2 or 3
x 0 or 1
mean individually or in a mixture with one another in aqueous lubricant solutions for transport chains in filling systems for food and / or beverages and in concentrates for preparing these aqueous lubricant solutions. 2. Use according to claim 1, characterized in that in the general formula (I)
R is a linear, unsubstituted, saturated or unsaturated, preferably a saturated, alkyl radical with 8 to 20 C atoms, preferably with 12 to 18 C atoms
means. 3. Use according to one or both of claims 1 and 2, characterized ge indicates that R '= H in the general formula (I). 4. Use according to one or more of claims 1 to 3, characterized characterized in that in the general formula (I) n = 2 and / or m = 1 and / or p = 2, preferably n = 2 and m = 1 and p = 2. 5. Use according to one or more of claims 1 to 4, characterized in that in the fatty acid amide derivatives of the general formula (I)
x = 0 and
Y is preferably a group - (CH₂) ₂-O-CH₂-COOM, where M has the meaning given in claim 1 and preferably in both cases is an alkali metal cation, in particular a sodium ion. 6. Use according to one or more of claims 1 to 4, characterized in that in the fatty acid amide derivatives of the general formula (I)
Y is a group - (CH₂) ₂-OH and M is preferably an alkali metal cation, in particular a sodium ion. 7. Use according to one or more of claims 1 to 6, characterized characterized in that the acid anions of the general formula (I) in Form of their water-soluble ammonium, alkyl ammonium or alkali tall salts, preferably their alkali metal salts and especially their Sodium salts are used. 8. Use according to one or more of claims 1 to 7, characterized characterized in that the aqueous lubricant solutions contain the acid anio NEN of the general formula (I) in total concentrations between 10 and contain 200 ppm. 9. Use according to claim 8, characterized in that the aqueous Lubricant solutions have a pH in the range of 5 to 9. 10. Use according to one or more of claims 1 to 9 for Schmie tion of transport chains or conveyor belts in filling plants for Beverage bottles, in particular for glass bottles, polyethylene tere phthalate, polycarbonate, Geracote and / or polyvinyl chloride. 11. Use according to one or more of claims 1 to 7, characterized characterized in that the acid anions of the general formula (I) in Total concentrations between 2 and 10 wt .-% in aqueous concentrate ten used to prepare aqueous lubricant solutions diluted with water by a factor between 200 and 1000 the. 12. Use according to claim 11, characterized in that the conc trate solubilizers, preferably selected from alcohols, poly  alcohols, ethers and polyethers, in particular from isopropanol, butyl glycol, butyl diglycol, ethylene glycol ether, and alkoxylated carbon acids and their esters, preferably in amounts between 3 and 20 % By weight. 13. Use according to one or both of claims 11 and 12, characterized ge indicates that the concentrates are non-ionic and / or amphoteric Surfactants, especially alkoxylated fatty amines and / or alkoxylated Contain fatty alcohols, preferably in amounts between 1 and 10% by weight ten. 14. Use according to one or more of claims 11 to 13, characterized characterized in that the concentrates are low mono- or polybasic Carboxylic acids with 2 to 5 carbon atoms, especially acetic acid, propion acid, oxalic acid, tartaric acid and / or citric acid, preferably in Contain amounts of 1 to 10 wt .-% and preferably a pH in Have range 4 to 7.