DE19942535A1 - Use of lubricants with polyhydroxy compounds - Google Patents

Abstract

The invention relates to the use of at least one selected polyhydroxy compound in lubricant formulations and the use of chain lubricants which contain at least 20 percent by weight of a selected polyhydroxy compound, for reducing the friction between transported goods and transport installations. The invention also relates to a lubricant which contains further additives in addition to the polyhydroxy compounds.

Description

The present invention relates to the use of at least one selected polyhydroxy compound as a lubricating component in Lubricant formulations and the use of chain lubricants at least 20% by weight of at least one selected polyhydroxy compound included, to reduce the friction between cargo and Transport facilities. The invention further relates to a lubricant, which in addition the polyhydroxy compounds contains other additives.

In the food industry, especially in beverage companies, the in the filling systems of containers to be filled via a wide variety of carriers Design and materials, for example via plate conveyor belts or chain-like arrangements, hereinafter generally referred to as transport chains should be designated, transported. The carriers make the connection between the different optional treatment levels of the Filling process such. B. unpacker, bottle washer, filler, Cappers, labellers, packers and the like a. The containers can be trade a wide variety of shapes, especially glass and plastic bottles, Cans, glasses, barrels, beverage containers (KEG), paper and cardboard containers. Around To ensure trouble-free operation, the transport chains in appropriately lubricated so that too much friction to the Containers is avoided. Usually diluted for lubrication aqueous solutions used the appropriate friction reducing agents contain. With the aqueous solutions, for example, the transport chains brought into contact by immersion or by spraying, then one  of splash lubrication systems or automatic belt lubrication systems or central chain lubrication systems speaks.

The chain lubricants previously used as lubricants are mostly based on Fatty acids in the form of their water-soluble alkali or alkanolamine salts or on Fatty amines, preferably in the form of their organic or inorganic salts.

While both substance classes can be used without problems in splash lubrication, they show a number of disadvantages in the central chain lubrication systems that are common today. For example, DE-A-23 13 330 describes soap-based lubricants which contain aqueous mixtures of C ₁₆ -C ₁₈ fatty acid salts and surface-active substances. Such soap-based lubricants 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 soap-based lubricants and carbon dioxide dissolved in water or the material to be filled.
• 3. The application solution created in this way is always germ-promoting.
• 4. When using hard water, ion exchangers are what Serum softening required, which means an additional source of germs (and is therefore rarely found in practice), or the stakes are high products containing complexing agents, which in turn is ecologically questionable is necessary.
• 5. There is increased foam formation, which is particularly problematic Bottle Inspector (automatic bottle control) and a results in greater wetting of the transport containers.
• 6. Most of these products contain solvents.
• 7. The cleaning effect of these products is poor, so that a separate Cleaning is necessary.  
• 8. Such soap-based lubricant preparations show a pH dependent performance.
• 9. Soap-based lubricant preparations continue to show one Water temperature dependency.
• 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 everyone Transport goods made of plastic are suitable because when using these agents in in many cases there is stress corrosion cracking on the goods to be transported.

In addition to soap-based lubricants, mainly those based on Fatty amines used. DE-A-36 31 953 describes a process for Lubrication of chain-shaped bottle conveyor belts in Beverage filling companies, especially in breweries, as well as for cleaning the Belts by means of a liquid detergent, which is characterized in that the chain-shaped bottle conveyor belts with belt lubricants Base of neutralized primary fatty amines, which preferably have 12 to 18 carbon atoms have and contain an unsaturated content of more than 10%, lubricates.

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

known as a lubricant, wherein
R ^{1 is} a saturated or unsaturated, branched or linear alkyl group with 8 to 22 C atoms;
R ^{2 is} hydrogen, an alkyl or hydroxyalkyl group having 1 to 4 carbon atoms or -A-NH ₂ ;
A is a linear or branched alkylene group with 1 to 8 carbon atoms; and
A ^{1 represents} a linear or branched alkylene group with 2 to 4 carbon atoms.

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

DE-A-42 06 506 discloses:
Soap-free lubricants based on amphoteric compounds, primary, secondary and / or tertiary amines and / or salts of such amines of the general formula (I), (IIa), (IIb), (IIIa), (IIIb), (IIIc), (IVa) and (IVb)

R ⁴ -NH-R ⁵ (IIa)

R ⁴ -N ⁺ H ₂ -R ⁵ X ^- (IIb)

R ⁴ -NH- (CH ₂ ) ₃ NH ₂ (IIIa)

R ⁴ -NH- (CH ₂ ) ₃ N ⁺ H ₃ X ^- (IIIb)

R ⁴ -N ⁺ H ₂ - (CH ₂ ) ₃ -N ⁺ H ₃ 2X ^- (IIIc)

R ⁴ -NR ⁷ R ⁸ (IVa)

and or

R ⁴ -N ⁺ HR ⁷ R ⁸ X ^- (IVb)

in which
R is a saturated or mono- or polyunsaturated, linear or branched alkyl radical having 6 to 22 carbon atoms, which may be replaced by -OH, -NH ₂ , -NH-, -CO-, - (CH ₂ CH ₂ O) _l - or - (CH ₂ CH ₂ CH ₂ O) _l - may be substituted,
R ^{1 represents} hydrogen, an alkyl radical having 1 to 4 carbon atoms, a hydroxyalkyl radical having 1 to 4 carbon atoms or a radical -R ³ COOM
R ² only in the case that M represents a negative charge for hydrogen, an alkyl radical with 1 to 4 C atoms, or a hydroxyalkyl radical with 1 to 4 C atoms,
R ^{3 is} a saturated or mono- or polyunsaturated, linear or branched alkyl radical having 1 to 12 carbon atoms, which may be replaced by -OH, -NH ₂ , -NH-, -CO-, - (CH ₂ CH ₂ O) _l - or - (CH ₂ CH ₂ CH ₂ O) _l - may be substituted,
R ^{4 represents} a substituted or unsubstituted, linear or branched, saturated or mono- or polyunsaturated alkyl radical having 6 to 22 carbon atoms, which may have at least one amine, imine, hydroxyl, halogen and / or carboxy radical as substituent,
a substituted or unsubstituted phenyl radical which may have at least one amine, imine, hydroxyl, halogen, carboxy and / or a linear or branched, saturated or mono- or polyunsaturated alkyl radical with 6 to 22 C atoms as substituents,
R ⁵ for hydrogen or - independently of R ⁴ - for a radical R ⁴ ,
X ^{- stands} for an anion from the group amidosulfonate, nitrate, halide, sulfate, hydrogen carbonate, carbonate, phosphate or R ⁶ -COO-, where
R ^{6 represents} hydrogen, a substituted or unsubstituted, linear or branched alkyl radical having 1 to 20 carbon atoms or alkenyl radical having 2 to 20 carbon atoms, which may have at least one hydroxyl, amine or imine radical as a substituent, or a substituted one or unsubstituted phenyl radical, which may have an alkyl radical having 1 to 20 C atoms as a substituent, and
R ⁷ and R ⁸ each independently represent a substituted or unsubstituted, linear or branched alkyl radical having 1 to 20 C atoms or alkenyl radical having 2 to 20 C atoms, which may have at least one hydroxyl, amine or imine radical as substituents, or
a substituted or unsubstituted phenyl radical, which may have an alkyl radical with 1 to 20 C atoms as substituents,
M represents hydrogen, alkali metal, ammonium, an alkyl radical with 1 to 4 carbon atoms, a benzyl radical or a negative charge,
n for an integer in the range from 1 to 12,
m for an integer ranging from 0 to 5 and
l for a number in the range from 0 to 5
stands,
containing alkyldimethylamine oxides and / or alkyl oligoglycosides as nonionic surfactants.

EP-B-629 234 discloses a lubricant combination consisting of

• a) one or more compounds of the formula
  in which
  R ^{1 represents} a saturated or mono- or polyunsaturated, linear or branched alkyl radical having 6 to 22 carbon atoms, which may optionally be substituted by -OH, -NH ₂ , -NH-, -CO-, halogen or a carboxyl radical,
  R ^{2 represents} a carboxyl radical with 2 to 7 C atoms,
  M represents hydrogen, alkali metal, ammonium, an alkyl radical with 1 to 4 carbon atoms or a benzyl radical and
  n stands for an integer in the range from 1 to 6,
• b) at least one organic carboxylic acid selected from single-base or multi-base, saturated or single or multiple unsaturated carboxylic acids with 2 to 22 carbon atoms,
• c) optionally water and additives and / or auxiliaries.

WO 94/03 562 describes a lubricant concentrate based on Fatty amines and, if appropriate, customary diluents or auxiliaries or Additives, characterized in that it is at least one polyamine derivative of a fatty amine and / or a salt of such an amine, the Proportion of the polyamine derivatives of fatty amines mentioned in the overall formulation is 1 to 100 wt .-%.

According to a preferred embodiment of WO 94/03 562, this lubricant concentrate contains at least one polyamine derivative of a fatty amine of the general formula

RA- (CH ₂ ) _k -NH - [(CH ₂ ) ₁ -NH] _y - (CH ₂ ) _m -NH _2. (H ⁺ X ^- ) _n

in which
R is a substituted or unsubstituted, linear or branched, saturated or mono- or polyunsaturated alkyl radical having 6 to 22 carbon atoms, the substituents being selected from amino, imino, hydroxy, halogen and carboxy, or
a substituted or unsubstituted phenyl radical, the substituents being selected from amino, imino, hydroxyl, halogen, carboxy and a linear or branched, saturated or mono- or polyunsaturated alkyl radical having 6 to 22 C atoms;
A represents either -NH- or -O-,
X ^{- is} an anion of an inorganic or organic acid,
k, l, m is independently an integer ranging from 1 to 6;
y in the case of A = -NH- 0, 1, 2 or 3 and
in the case A = -O- 1, 2, 3 or 4,
n is an integer from 0 to 6.

In some bottling plants, lubricants are based on Polytetrafluoroethylene used. These are in the form of dispersions and are not, as is usually practiced, on nozzles, but on brushes applied the chains. These funds have the advantage of being essential Reduction of the friction between conveyor belts and goods bring. In addition, the polytetrafluoroethylene adheres very strongly to the Chains.

A disadvantage in practice turned out that the entire hygienic Condition regarding contamination and contamination of the transport chains has deteriorated. This even went so far that the performance profile of the Lubricant waned over time due to the increase in pollution.

Another disadvantage was observed that the dispersions of Polytetrafluoroethylene were not stable in storage and separated over time. this has consequently, observed over a long period of time, not constant amounts of active ingredient on the transport chains.  

When trying to clean the transport chains, it turned out that the Lubricant layer was very difficult to remove from the transport chains.

When checking the compatibility of polytetrafluoroethylene dispersions regarding their plastic compatibility, it was also found that they are Create stress cracks in PET bottles.

The commonly used lubricants have the disadvantage that they have one form firmly adhering film on the transport chains by simply rinsing is not easy to remove with water.

In this film residues and abrasives can collect and to Cause hygiene and operational disruptions in the company.

The present invention has as its object lubricants based on To provide polyhydroxy compounds due to their Molecular structure are hydrophilic and at the same time the lubricating performance compared to Amines commonly used as lubricants improve.

The present invention relates to the use of at least one polyhydroxy compound, for which at any point in the molecular structure it applies that among 10 or fewer atoms which are linked to one another via covalent bonds, there is at least one hydroxyl group in free, etherified and / or esterified form which has less than 5 atoms is linked by covalent bond with a second hydroxyl group in free, etherified and / or esterified form, in lubricant formulations to reduce the friction between transport goods and transport systems, and in another object of the invention the use of chain lubricants related to the entire formulation, containing at least 20% by weight of at least one polyhydroxy compound, for which it applies at any point in the molecular structure that at least one or more hydroxyl groups in free, etherified and / or esterified form are present among 10 or fewer atoms linked to one another via covalent bonds located, which is connected via less than 5 atoms by a covalent bond with a second hydroxy group in free, etherified and / or esterified form, for the transport of containers on conveyor belt systems. It is particularly preferred that the proportion of polyhydroxy compounds, based on the entire formulation, is greater than 25% by weight and, in a very particularly preferred embodiment, greater than 40% by weight and in particular greater than 80% by weight. By using the polyhydroxy compounds characterized according to the invention, lubricants with high polarity and high hydrophilicity are obtained.
Accordingly, such lubricants can be used in practice without forming a difficult-to-remove film on the chains. On the contrary, the film formed by the agents to be used according to the invention can be easily removed by simply rinsing with water. This has the advantage that when using appropriate formulations according to the invention, little or no dirt accumulates on the transport chains or other surfaces which come into contact with the chain lubricant.

In a preferred embodiment of the use according to the invention the polyhydroxy compounds are organic compounds with more than 2 Hydroxy groups from the groups of alcohols, including sugar alcohols and carbohydrates are to be understood, phenols, as well as natural polymers and synthetic polymers, with particular preference as a polyhydroxy compound at least one component selected from alkanediols or alkanetriols, whole particularly preferably glycerol, or their polymers, and their esters and ethers are included.

In a preferred embodiment of the present invention, the formulations to be used according to the invention additionally contain at least one component selected from the fluorine and silicone compounds, the fluorine compound being particularly preferably selected from the groups of

• a) per- or partially fluorinated monomeric organic compounds,  
• b) pure and mixed di- and oligomers based on at least one per- or based on partially fluorinated organic monomer,
• c) pure and mixed polymers based on at least one per or partially fluorinated organic monomer based.

When defining the boundary between oligomers and polymers refers to the present invention to the well known characterization of Polymers made up of so many of the same or similar low molecular weight Building blocks (monomers) are built that the physical Properties of these substances, in particular the viscoelasticity No more increase or decrease in the number of blocks by one unit change noticeably. This is generally the case when the middle one Molecular weight of the "polymers" is 10,000 g / mol or more.

For the low molecular dimers, trimers and other lower members of the polymer homologous series one uses the term oligomers.

In a preferred form, the fluorine compounds a) comprise at least per and partially fluorinated surfactants, alkanes, ethers and amines, with particular preference in the formulations used according to the invention ammonium perfluoroalkyl-sul fonates, lithium perfluoroalkyl sulfonates, potassium perfluoroalkyl sulfonates, amine perfluoro alkyl sulfonates, sodium perfluoroalkyl sulfonates, potassium fluoroalkyl carboxylates, quaternary fluorinated alkylamomonium iodides, ammonium perfluoroalkylcarboxalates, fluorinated alkyl polyoxyethylene ethanols, fluorinated alkyl alkoxylates, fluorinated Alkyl esters with concentrations of 0.001 to 10% are used. The Fluorinated components of group c) are preferably per and / or Partly fluorinated alkoxy polymers, which are particularly preferred from the copolymerization of tetrafluoroethylene and perfluoroalkoxy vinyl ethers are available.

In a further preferred embodiment, according to the invention formulations from group c) using at least per and / or contain partially fluorinated polyethers.  

Those to be used in a preferred embodiment of the invention Formulations containing silicone compounds are preferably selected selected from the group of polysiloxanes and particularly preferably from the Groups of linear, branched, cyclic and cross-linked polysiloxanes.

It is also preferred that those to be used in the present invention Formulations in the form of one-component liquids, solutions, gels, Emulsions, pastes, dispersions are present.

The formulations to be used according to the invention contain in a before preferred execution additionally from at least one antimicrobial component selected from the groups of alcohols, aldehydes, antimicrobial acids, car bonic esters, acid amides, phenols, phenol derivatives, diphenyls, diphenylal kane, urea derivatives, oxygen, nitrogen acetals and formals, benzami dine, isothiazolines, phthalimide derivatives, pyridine derivatives, antimicrobial surface active compounds, guanidines, antimicrobial amphoteric compounds gene, quinolines, 1,2-dibromo-2,4-dicyanobutane, iodo-2-propynyl-butyl-carbamate, Iodine, iodophores, peroxides, the in a particularly preferred embodiment Formulations to be used according to the invention as an antimicrobial composition one or more compounds selected from ethanol, n-propanol, i- Propanol, phenoxyethanol, undecylenic acid, citric acid, 2-benzyl-4- chlorophenol, 2,2'-methylene-bis- (6-bromo-4-chlorophenol), 2,4,4'-trichloro-2'- hydroxydiphenyl ether, N- (4-chlorophenyl) -N- (3,4-dichlorophenyl) urea, N, N'- (1,10-decanediyldi-1-pyridinyl-4-ylidene) bis (1-octanamine) dihydrochloride, N, N'-bis- (4-chlorophenyl) -3,12-diimino-2,4,11,13-tetraaza-tetradecanediimidamide, quaternary ammonium compounds or alkyl amines, guanidines, Amphoteric.

In a likewise preferred embodiment, they contain according to the invention formulations using further components selected from the Groups of surfactants and solubilizers, it being particularly preferred that Surfactant at least one alkyl polyglycoside is included. More preferred  Ingredients are fatty alkyl amines and / or their alkoxylates, in particular Coconut fatty amine ethoxylates and / or imidazoline compounds and / or amphoteric Surfactants and / or nonionic surfactants and / or ether carboxylic acids and / or Etheramine compounds. In addition, it is preferred that the invention formulations to be used to add paraffin compounds.

The formulations to be used according to the invention are based on practice the transport chains applied, whereby it can be observed in the best case that No foam when transporting the goods on the transport systems arises. It is further preferred that those to be used according to the invention Formulations compared to common lubricants used in transportation systems be diluted with water by a dilution factor of more than 100 and in the event that quantities of equal weight within a defined period of lubricating components applied to the conveyor belt system are, when using formulations to be used according to the invention Frictional resistance between transport goods and conveyor belt system by more than Is reduced by 20%. This can be shown by example experiments.

example 1

A comparison formulation 1 which contains 5% by weight of coconut propylene diamine and is adjusted to pH 7 with acetic acid, using a nozzle assembly with 5 nozzles which each have a spray rate of 5 l per hour, in 0.2% aqueous Concentration applied to the transport chains. Over a period of 1 50 ml of the comparison formulation, or about 2.5 g of the Coconut propylene diamines on the transport chains. This attempt is about one Period of 10 hours. The coefficient of friction between Beverage bottle and stainless steel transport chains is made according to the present Invention as a ratio of the train weight, for example on a Spring scale is exercised when trying to run with transport chains running to hold a bottle of drink defined to the weight of the bottle. The coefficient of friction when using the comparative example described above µ = 0.10. As soon as the dosing process is interrupted, the coefficient of friction increases  arrives quickly and within a few minutes the Transport goods or bottles.

During the entire test period of 10 hours, the Comparative example a total of 25 ml of lubricating active Coconut propylene diamine raw materials on the transport chains. In a second 25 ml of a formulation to be used according to the invention, consisting of pure glycerin, with a rag on the transport chains distributed. Then under identical conditions as in the experiment with Comparative example 1, the coefficient of friction between bottles and transport chain measured over a period of 10 hours. Over the entire period of 10 hours the coefficient of friction µ is about 0.05. This example shows that the frictional resistance between transport goods and conveyor belt system can be reduced by more than 20%, in the present example even by more than 40%.

Another preferred embodiment of the present invention is use the formulations to be used according to the invention for the transport of Plastic containers, the plastic containers being particularly preferred at least one polymer selected from the groups of Polyethylene terephthalate (PET), polyethylene naphthenate (PEN), polycarbonate (PC), PVC contain and very particularly preferably PET beverage bottles are.

Example 2

In a laboratory test, stress corrosion cracking is used as a comparative example based on 5% by weight coconut propylene diamine and 5% by weight dimethyl laurylamine, which are adjusted to pH 7 with acetic acid compared to Stress corrosion cracking of pure glycerin was measured.

According to the test description, PET bottles are filled with water and with Carbon dioxide conditioned in such a way that a pressure of about 7 bar. Then the bottom cups of the bottles are placed in the  Formulation of the comparative example or of the invention using the example and immersed in a Petri dish placed. After the 24 hours, the bottles are opened and emptied and rinsed the floor cups with water. With visual evaluation of the Floor cups can be found that when trying with the Comparative example, many stress cracks with medium depth, rating C, are present, while for the experiment with that to be used according to the invention Example it can be seen that only a few stress cracks with shallow depth, Classification A, available. The classification is based on the Reference pictures, which are described in chapter IV-22 of the book "CODE OF PRACTICE - Guidelines for an Industrial Code of Practice for Refillable PET Bottles ", Edition 1, 1993-1994.

Example 2 shows that the formulations to be used according to the invention compared to products used on the market as lubricants on amine Have basic advantages when transporting plastic bottles.

In a further preferred embodiment, the are according to the invention formulations for the transport of cardboard packaging used.

Furthermore, use is preferred in which the transport surfaces of the Conveyor belt systems made of plastic, particularly preferably made of polyacetal and Are polyethylene.

In another preferred embodiment, the transport surfaces are Conveyor belt system made of metal, particularly preferably made of stainless steel.

It is further preferred to use the one according to the invention Formulations before or after application by separate feeding additional antimicrobial substances, particularly preferably organic peracids, Add chlorine dioxide or ozone.

In a preferred embodiment, those to be used according to the invention Formulations using a tool that can be selected from a brush, Sponge, rollers, cloths, rags, brushes, wipers, rubber, spraying device  applied to the conveyor belts without prior dilution with water. In Another preferred embodiment is that according to the invention using formulations in automatic conveyor belt systems Diluted water and the application solution via dosing devices on the Conveyor belts applied, the dilution factor between 10,000 and 100 lies. It is further preferred that those to be used according to the invention Formulations are selected and applied so that on surfaces that are in contact with the formulations or solution, no others Multiplication of microorganisms takes place and very particularly preferably that Number of microorganisms is reduced.

The formulations to be used according to the invention are preferably for used to transport containers in the food industry.

In a preferred embodiment of the use according to the invention, the Bottom of the plastic bottles rinsed with water before the plastic bottles leave the bottling plant.

Because of the hydrophilic properties of those to be used according to the invention Formulations are achieved that a large part of the on the floors of the Lubricant residues sticking to plastic bottles by simply rinsing them off can be removed with water. This has the consequence that the in the trade plastic bottles arriving hardly have any chemical residues. This Aspect is important because the chemical attack on the polymer In many cases, beverage bottle material only becomes one after a long time visible attack or even destruction of the beverage bottles. So if lubricant residues stick to the bottom of the plastic bottles remain, this has a negative impact on the long-term contact polymeric material.

For example, the chain lubricants commonly used up to now adhere due to their surfactant or hydrophobic character, stronger on PET bottles  and cannot be removed sufficiently by rinsing with water become.

The chemical attack is amplified when, for example, due to summer Temperatures during transport or storage, the internal pressure in the Bottles rise and the bottle material is under high tension. The beverage bottles can, depending on circulation cycles, up to several months in the market before going to the bottling plant be transported back.

The advantage of the formulations to be used according to the invention is that they are easy to rinse and can be removed by a final rinse with water can.

Another advantage of the polyhydroxy compounds is that most of the Compared to the compounds usually used as lubricants are easily degradable.

Another object of the present invention are chain lubricants that based on the total formulation at least 20 wt .-%, preferably more than 40 wt .-% and particularly preferably more than 80 wt .-% at least contain a polyhydroxy compound for every part of the molecular structure applies that there are less than 10 or less with each other via covalent bonds linked atoms at least one hydroxyl group in free, etherified and / or esterified form, which has fewer than 5 atoms by covalent Binding with a second hydroxy group in free, etherified and / or esterified form is connected.

By using polyhydroxy compounds, for which the Molecular structure holds that under 10 or less are covalent with each other Bonds of chained atoms have at least one hydroxyl group in free, etherified and / or esterified form, which has fewer than 5 atoms by covalent bond with a second hydroxy group in free, etherified  and / or esterified form is obtained, chain lubricant with high Polarity and high hydrophilicity. Accordingly, such Lubricants can be used in practice without being difficult forms removable film on the chains. On the contrary, through the Film formed according to the invention can be formed by simple Rinsing with water can be easily removed. This has the advantage that at Use of corresponding formulations according to the invention only little or no dirt on the conveyor chains or other surfaces that come into contact with the chain lubricant, accumulates.

In a preferred embodiment, the polyhydroxy compounds comprise organic compounds with more than 2 hydroxy groups from the groups of Alcohols, phenols, sugar alcohols, carbohydrates and natural polymers and synthetic polymers, with particular preference as a polyhydroxy compound at least one component selected from alkanediols or alkanetriols, whole particularly preferably glycerol, or their polymers, and their esters and ethers are included.

In a preferred embodiment of the present invention, the chain lubricants according to the invention additionally contain at least one component selected from the fluorine and silicone compounds, the fluorine compound being particularly preferably selected from the groups of

• a) per- or partially fluorinated monomeric organic compounds,
• b) pure and mixed di- and oligomers based on at least one per- or based on partially fluorinated organic monomer,
• c) pure and mixed polymers based on at least one per or partially fluorinated organic monomer based.

When defining the boundary between oligomers and polymers refers to the present invention to the well known characterization of Polymers made up of so many of the same or similar low molecular weight Building blocks (monomers) are built that the physical  Properties of these substances, in particular the viscoelasticity No more increase or decrease in the number of blocks by one unit change noticeably. This is generally the case when the middle one Molecular weight of the "polymers" is 10,000 g / mol or more.

For the low molecular dimers, trimers and other lower members of the polymer homologous series one uses the term oligomers.

In a preferred form, the fluorine compounds a) comprise at least per and partially fluorinated surfactants, alkanes, ethers and amines, with particular preference in the formulations used according to the invention Ammonium perfluoroalkyl sulfonates, lithium perfluoroalkyl sulfonates, Potassium perfluoroalkyl sulfonates, amine perfluoroalkyl sulfonates, Sodium perfluoroalkyl sulfonates, potassium fluoroalkyl carboxylates, quaternary fluorinated Alkylamomonium iodides, ammonium perfluoroalkylcarboxalates, fluorinated Alkyl polyoxyethylene ethanols, fluorinated alkyl alkoxylates, fluorinated alkyl esters with Concentrations of 0.001 to 10% are used. The fluorinated compo Group c) are preferably per- and / or partially fluorinated alkoxypoly mers, which are particularly preferred from the copolymerization of tetrafluoroethylene and perfluoroalkoxy vinyl ethers are available.

In a further preferred embodiment, according to the invention formulations from group c) using at least per and / or contain partially fluorinated polyethers.

Another preferred embodiment of the present invention includes a Chain lubricant according to the invention additionally in the formulation at least one silicone compound, preferably selected from the groups which contains linear, branched, cyclic and cross-linked polysiloxanes.

Claims (34)

1. Use of at least one polyhydroxy compound for which at any point in the molecular structure applies that among 10 or fewer atoms linked to one another via covalent bonds there is at least one hydroxyl group in free, etherified and / or esterified form which contains less than 5 atoms by covalent bonds Bond is connected to a second hydroxy group in free, etherified and / or esterified form,
in lubricant formulations to reduce the friction between transport goods and transport systems. 2. Use of chain lubricants which contain at least 20% by weight of at least one polyhydroxy compound, based on the entire formulation, for which it applies at every point in the molecular structure that at least one or more hydroxyl groups in free, under 10 or less atoms linked together via covalent bonds etherified and / or esterified form, which is connected via less than 5 atoms by covalent bond with a second hydroxy group in free, etherified and / or esterified form,
for the transport of containers on conveyor belt systems. 3. Use according to one of claims 1 or 2, characterized in that that the proportion of polyhydroxy compounds based on the total Formulation is greater than 25 wt .-%. 4. Use according to one of claims 1 or 2, characterized in that that the proportion of polyhydroxy compounds based on the total Formulation is greater than 40 wt .-%.   5. Use according to one of claims 1 or 2, characterized in that that the proportion of polyhydroxy compounds based on the total Formulation is greater than 80 wt .-%. 6. Use according to one of claims 1 to 5, characterized in that that the polyhydroxy compounds are organic compounds with more than 2 Hydroxy groups from the groups of alcohols, phenols and natural Include polymers and synthetic polymers. 7. Use according to claim 6, characterized in that as Polyhydroxy compound at least one component selected from Alkanediols, alkanetriols, their polymers and their esters and ethers is included. 8. Use according to claim 8, characterized in that as Polyhydroxy compound at least glycerin is included. 9. Use according to one of claims 1 to 8, characterized in that that additionally selected at least one component in the formulation from the fluorine and silicone compounds. 10. Use according to claim 9, characterized in that a fluorine compound selected from the groups of

• a) per- or partially fluorinated monomeric organic compounds,
• b) pure and mixed di- and oligomers based on at least one per- or partially fluorinated organic monomer,
• c) pure and mixed polymers based on at least one per- or partially fluorinated organic monomer.

11. Use according to one of claims 9 or 10, characterized in that that a silicone compound selected from the group of polysiloxanes  and preferably selected from the groups of linear, branched, cyclic and crosslinked polysiloxanes is included. 12. Use according to one of claims 1 to 11, characterized in that that the formulations as a one-component liquid, solution, gel, Emulsion, paste, dispersion are present. 13. Use according to one of claims 1 to 12, characterized in that that the formulations additionally have at least one antimicrobial Component selected from the groups of alcohols, aldehydes, antimicrobial acids, carboxylic acid esters, acid amides, phenciles, Phenol derivatives, diphenyls, diphenylalkanes, urea derivatives, oxygen, Nitrogen acetals and formals, benzamidines, isothiazolines, Phthalimide derivatives, pyridine derivatives, antimicrobial surfactants Compounds, guanidines, antimicrobial amphoteric compounds, Quinolines, 1,2-dibromo-2,4-dicyanobutane, iodo-2-propynyl-butyl-carbamate, iodine, Iodophores, peroxides included. 14. Use according to claim 13, characterized in that the Formulations as antimicrobial components one or more Compounds selected from ethanol, n-propanol, i-propanol, Phenoxyethanol, undecylenic acid, citric acid, 2-benzyl-4-chlorophenol, 2,2'-methylene-bis- (6-bromo-4-chlorophenol), 2,4,4'-trichloro-2'-hydroxydiphenyl ether, N- (4-chlorophenyl) -N- (3,4-dichlorophenyl) urea, N, N '- (1.10- decanediyldi-1-pyridinyl-4-ylidene) bis (1-octanamine) dihydrochforide, N, N'-bis- (4- Chlorophenyl) -3,12-diimino-2,4,11,13-tetraaza-tetradecanediimidamide, quater primary ammonium compounds or alkyl amines, guanidines, amphoterics. 15. Use according to one of claims 1 to 14, characterized in that that the formulations selected additional components from the Contain groups of surfactants and solubilizers.   16. Use according to one of claims 1 to 15, characterized in that that compared to common lubricants used in automatic Conveyor belt systems with water by a dilution factor of more than 100 are diluted and in the event that within a defined Periodic equal amounts of lubricating components on the Conveyor belt system can be applied when using Formulations according to any one of claims 1 to 15 the frictional resistance between transport goods and conveyor belt system by more than 20% is lowered. 17. Use according to one of claims 1 to 16 for the transport of Plastic containers. 18. Use according to claim 17, characterized in that the plastic Contain at least one polymer selected from the groups of Polyethylene terephthalate (PET), polyethylene naphtenate (PEN), polycarbonate (PC), PVC included. 19. Use according to claim 18, characterized in that the plastic Containers are PET beverage bottles. 20. Use according to one of claims 1 to 16 for the transport of Cardboard packaging. 21. Use according to one of claims 1 to 20, characterized in that that the transport surfaces of the conveyor belt system are made of plastic. 22. Use according to one of claims 1 to 20, characterized in that that the transport surfaces of the conveyor belt system are made of metal.   23. Use according to one of claims 1 to 22, characterized in that that when applying separately additional antimicrobial agents be added. 24. Use according to claim 23, characterized in that as antimicrobial agents organic peracids, chlorine dioxide or ozone be used. 25. Use according to one of claims 1 to 24, characterized in that that the formulations have a tool selected from a brush, Sponge, rollers, cloths, rags, brushes, wipers, rubber, Spray device onto the conveyor belts without prior dilution Water can be applied. 26. Use according to one of claims 1 to 24, characterized in that that the formulations in automatic conveyor belt systems with water diluted and the application solution via dosing devices on the Conveyor belts are applied. 27. Use according to claim 26, characterized in that the Dilution factor is between 10,000 and 100. 28. Use according to one of claims 1 to 27 for the transport of Containers in the food industry. 29. Use according to one of claims 1 to 28, characterized in that that the bottom of plastic bottles is rinsed with water before the Plastic bottles leave the bottling plant. 30. Chain lubricant containing at least 20% by weight of at least one Contain polyhydroxy compound based on the entire formulation for which is true at every point in the molecular structure that is below 10 or less  At least one atom is linked to one another by covalent bonds Hydroxy group is in free, etherified and / or esterified form, the less than 5 atoms by covalent bond with a second Hydroxy group linked in free, etherified and / or esterified form is 31. Chain lubricant according to claim 30, characterized in that at least 40 wt .-% of at least one polyhydroxy compound based on the total Wording is included. 32. Chain lubricant according to claim 30, characterized in that at least 80 wt .-% of at least one polyhydroxy compound based on the total Wording is included. 33. Chain lubricant according to one of claims 30 to 32, characterized in that in the formulation additionally at least one fluorine compound, which is preferably selected from the groups of

• a) per- or partially fluorinated monomeric organic compounds,
• b) pure and mixed di- and oligomers based on at least one per- or partially fluorinated organic monomer,
• c) pure and mixed polymers based on at least one per- or partially fluorinated organic monomer

is included. 34. Chain lubricant according to one of claims 30 to 33, characterized characterized in that in addition at least one in the formulation Silicone compound, which is preferably selected from the groups of linear, branched, cyclic and cross-linked polysiloxanes.