EP0629235A1 - Base tensio-active pour lubrifiants sans savon. - Google Patents

Base tensio-active pour lubrifiants sans savon.

Info

Publication number
EP0629235A1
EP0629235A1 EP93904004A EP93904004A EP0629235A1 EP 0629235 A1 EP0629235 A1 EP 0629235A1 EP 93904004 A EP93904004 A EP 93904004A EP 93904004 A EP93904004 A EP 93904004A EP 0629235 A1 EP0629235 A1 EP 0629235A1
Authority
EP
European Patent Office
Prior art keywords
radical
carbon atoms
alkyl radical
alkyl
lubricant according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93904004A
Other languages
German (de)
English (en)
Other versions
EP0629235B1 (fr
Inventor
Alfred Laufenberg
Birgit Winkelmann
Werner Strothoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecolab GmbH and Co oHG
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0629235A1 publication Critical patent/EP0629235A1/fr
Application granted granted Critical
Publication of EP0629235B1 publication Critical patent/EP0629235B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/30—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms containing a nitrogen-to-oxygen bond
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/40—Polysaccharides, e.g. cellulose
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/046—Hydroxy ethers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/20—Containing nitrogen-to-oxygen bonds
    • 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
    • C10M2215/20—Containing nitrogen-to-oxygen bonds
    • C10M2215/204—Containing nitrogen-to-oxygen bonds containing nitroso groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/26—Amines
    • 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
    • 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
    • C10N2040/30—Refrigerators lubricants or compressors lubricants
    • 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
    • C10N2040/32—Wires, ropes or cables lubricants
    • 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
    • C10N2040/34—Lubricating-sealants
    • 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
    • C10N2040/36—Release agents or mold release agents
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/40—Generators or electric motors in oil or gas winning field
    • 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
    • C10N2040/42—Flashing oils or marking oils
    • 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
    • C10N2040/44—Super vacuum or supercritical use
    • 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
    • C10N2040/50—Medical uses
    • 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

Definitions

  • the present invention relates to a new surfactant base for soap-free lubricants known per se, containing alkylamines and / or amphoteric compounds, optionally water and further additives and / or auxiliaries.
  • the invention further relates to the use of the lubricant as a chain lubricant in the food industry.
  • the lubricants according to the invention are used here for the lubrication, cleaning and disinfection of automatic chain and belt lubrication systems which, when filling foodstuffs, preferably beverages, in glass and plastic bottles, cans, glasses, barrels, beverage containers (KEG), paper containers and cardboard containers and the like are used.
  • the chain lubricants previously used as lubricants are based, on the one hand, on fatty acids in the form of their water-soluble alkali or alkanolamine salts or on fatty amines in the form of their organic or inorganic salts.
  • DE-A-23 13 330 describes soap-based lubricants which contain aqueous mixtures of cis-cig fatty acid salts and surface-active substances.
  • DE-A-36 31 953 describes a method for lubricating chain-shaped bottle conveyor belts in beverage removal plants, in particular in breweries, and for cleaning the belts by means of a liquid cleaning agent, which is characterized in that the chain-shaped bottle conveyor belts are lubricated with belt lubricants based on neutralized primary fatty amines, which preferably have 12 to 18 C atoms and contain an unsaturated fraction of more than 10%, and the bottle conveyor ⁇ tapes with cationic cleaning agents, namely quaternary ammonium compounds such as alkyltrimethylammon um-, dialkyldimethylammonium and alkyldimethylbenzylammonium chlorides or organic acids.
  • quaternary ammonium compounds such as alkyltrimethylammon um-, dialkyldimethylammonium and alkyldimethylbenzylammonium chlorides or organic acids.
  • DE-A-38 31 448 relates to aqueous, clear water-soluble, soap-free lubricant preparations, a process for their preparation and the use of the lubricant preparations according to the invention, in particular as lubricants for the transport of glass bottles or polyethylene terephthalate bottles.
  • the essentially neutral aqueous lubricant preparations (pH in the range from 6 to 8) contain alkylbenzenesulfonates, alkoxylated Al anolphosphate and alkane carboxylic acids, optionally in addition to conventional solubilizers, solvents, defoamers and disinfectants.
  • DE-A-39 05 548 describes lubricants which contain at least one secondary and / or tertiary amine and / or salts of such amines.
  • PET polyethylene terephthalate
  • PET reusable bottles have proven particularly useful in this area for carbonated beverages such as mineral water and lemonades.
  • chain conveyor belt lubricants A more or less large part of the chain conveyor belt lubricant remains on the bottles, dries and sometimes damages these bottles.
  • cracks in the PET material so-called stress cracks, have been found in application technology. In extreme cases, this leads to the bottle bursting.
  • the object of the present invention was therefore to provide a chain conveyor belt lubricant which meets the needs of the application side in that the So-called coefficient of friction is equal to or less than 0.1 to 0.12, the product simultaneously cleans, lubricates and disinfects, the product can be used in the lowest possible concentrations, the product does not damage the PET bottles, the product can be used regardless of the water hardness and the product is particularly suitable for mixed PET glass.
  • the object of the present invention was achieved by the use of certain nonionic surfactants which fulfill all the requirements for chain conveyor belt lubricants, as listed above.
  • the present invention relates to soap-free lubricants based on amphoteric compounds, primary, secondary and / or tertiary amines and / or salts of such amines of the general formula (I), (Ila), (Ilb), (Illa), (Illb ), (Illb), (IIIc), (IVa) and (IVb)
  • 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-, -C0-, - (CH CH 0) ⁇ - or - (CH 2 CH 2 CH 2 0)] - may be substituted,
  • Rl for hydrogen, an alkyl radical with 1 to 4 carbon atoms, a hydroxyalkyl radical with 1 to 4 carbon atoms or a radical -R ⁇ COOM
  • R2 only in the case where 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
  • - or - (CH 2 CH CH 2 0) ⁇ - may be substituted,
  • R 4 is a substituted or unsubstituted, linear or branched, saturated or mono- or polyunsaturated alkyl radical having 6 to 22 carbon atoms, the substituents being at least one amine, I in, hydroxy, halogen and / or carboxy residue, a substituted or unsubstituted phenyl residue which has at least one amine, imine, hydroxy, halogen, carboxy and / or a linear or branched, saturated or mono- or polyunsaturated substituent May have an alkyl radical having 6 to 22 carbon atoms,
  • R5 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 ⁇ -COO", where
  • R6 represents hydrogen, 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 one or unsubstituted phenyl radical, which may have an alkyl radical with 1 to 20 C atoms as a substituent, and
  • R? and R8 in each case independently of one another for 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 a substituent, or a substituted or unsubstituted phenyl radical, which may have an alkyl radical with 1 to 20 C atoms as a substituent, M for 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 in the range from 0 to 5 and
  • 1 represents a number in the range from 0 to 5
  • alkyldimethylamine oxides containing alkyldimethylamine oxides and / or alkyl oligoglycosides as nonionic surfactants.
  • R saturated or mono- or polyunsaturated, linear alkyl radical with 10 to 18 C atoms, which can optionally be substituted by -C0-, in particular unsubstituted, saturated linear alkyl radical with 12 to 14 C atoms,
  • R 1 hydrogen, alkyl radical with 1 to 3 carbon atoms or a radical
  • R2 hydrogen or alkyl radical with 1 to 3 carbon atoms
  • R 3 methylene or dimethylene residue, in particular methylene residue
  • M hydrogen or a negative charge
  • the lubricant combinations according to the invention show a very good coefficient of friction, a low foaming behavior, a good cleaning effect and good skin tolerance.
  • Moderate foaming behavior improves the lubricating effect in problem areas, such as Turntables, changers, etc., high substantivity and thus high lubricating performance even under unfavorable operating conditions (eg belt lubrication), generally usable even with equipment shortcomings, good cleaning effect, high capillary activity and film formation on surfaces, even in the presence of organic loads and acids or alkalis effective and also non-corrosive as a concentrate.
  • the lubricant combinations according to the invention are both independent of the water quality and also low-foaming, stable in storage at low temperatures, not corrosive and particularly gentle on the environment and skin.
  • the compounds of the general formula (I) are known in principle, as is the process for their preparation from "fatty amines and secondary products", company lettering from Hoechst AG.
  • the lubricants according to the invention contain the compounds of the general formulas (I) to (IV) in amounts of 1 to 99% by weight, preferably in amounts of 5 to 15% by weight, based on the overall formulation. Accordingly, such lubricant combinations in the sense of the invention can consist exclusively of the amphoteric compounds mentioned and the associated surfactant base. Furthermore, the invention also includes lubricant formulations which contain only a minor proportion of the compounds of the general formulas (I) to (IV), preferably in amounts of 5 to 15% by weight and in particular 10 to 12 % By weight. In this case, the rest of the lubricant formulations preferably consist of water and additionally, if appropriate, of additives and / or auxiliaries and the surfactant base mentioned.
  • Suitable as lubricant components are primary, secondary and / or tertiary amines and / or salts of such amines, as described, among other things, in the German patent application DE-A-3905 548 cited above.
  • the lubricants according to the invention can be primary or secondary amines of the general formulas (Ila) or (Ilb)
  • Di-coco-amine, di-stearyl-amine, di-tallow-amine and corresponding salts preferably the acetates.
  • the lubricants according to the invention can be secondary diamines of the general formulas (purple), (Illb) or (IIIc)
  • N-lauryl-propylenediamine and N-tallow-propylenediamine each in the form of the free amines and in the form of the acetate salts.
  • the lubricants according to the invention can contain tertiary amines of the general formulas (IVa) or (IVb)
  • radicals R 4 and X ⁇ each have the meanings given for the general formulas (Ila) and (Ilb) and the radicals R ⁇ and each independently mean: a substituted or unsubstituted, linear or branched alkyl radical with 1 to 20 carbon atoms or alkenyl radical with 2 to 20 carbon atoms, which as a substituent at least one
  • Substituents can have an alkyl radical with 1 to 20 carbon atoms.
  • tertiary amines of the general formulas (IVa) and (IVb) are: N, N-dipropyl-N-laurylamine, N, N-dimethyl-N-laurylamine, N, N-dimethyl-N-hexadecylamine, N, N-dimethyl-N-cocosamine, N, N-dimethyl-N-cetylamine and the corresponding acetate salts.
  • Primary, secondary and tertiary amines which correspond to the general formulas (II), (III) and (IV) given above can be prepared by processes known from the literature and some are offered as commercial products, for example from Hoechst AG, Frankfurt am Main, Germany, under the name GENAMIN R or from Lonza AG, Basel, Switzerland, under the name L0NZABAC R 12.
  • the weight ratio of the compounds of the general formula (I) to the amines of the general formulas (II), (III) and / or (IV) is not critical. However, a weight ratio of compounds of the general formula (I) to the compounds of the general formulas (II), (III) and / or (IV) in the range from 10: 1 to 1:10, in particular a ratio of 5: 1, is preferred up to 1: 1.
  • the weight ratio mentioned above is based on the sum of the compounds (II), (III) and (IV) which may be used individually.
  • the lubricants according to the invention can contain, as auxiliaries, solubilizers for obtaining a homogeneous, clear water-soluble application solution.
  • solubilizers for obtaining a homogeneous, clear water-soluble application solution.
  • examples of these are: alcohols, polyalcohols, ethers or polyethers, in particular isopropanol, butylglycol, butyl diglycol or ethylene glycol ether.
  • the amount of the solubilizer to be used depends in each case on the betaine or amine used, the person skilled in the art will determine the required amount of solubilizer by trial and error in the individual case. In general, additions to solubilizers in the range from 1 to 20% by weight, based on the overall formulation, are sufficient.
  • the alkyldimetylamine oxides to be used are equipped with a chain length of 10 to 18, in particular 12 to 14, carbon atoms in the alkyl radical.
  • the alkyl chains can be linear or branched, saturated, mono- or polyunsaturated.
  • Alkyl oligoglycosides for the purposes of the present invention preferably comprise compounds of the formula (V), Rl-0- [G] p (V)
  • R 1 represents an alkyl radical with 4 to 22 carbon atoms
  • [G] stands for a sugar residue with 5 or 6 carbon atoms and p stands for numbers from 1 to 10.
  • Alkyl oligoglycosides are preferred which are derived from aldoses or ketoes and, because of their ready availability, in particular from glucose.
  • the preferred alkyl oligoglycosides are thus the alkyl oligoglucosides.
  • the alkyl radical R 1 can be derived from primary alcohols having 4 to 22, preferably 8 to 16, in particular 8 to 10, carbon atoms. Typical examples are butanol, capro alcohol, caprylic alcohol, capric alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, arachyl alcohol, behenyl alcohol and their technical mixtures based on natural fats and oils, for example palm oil, palm kernel oil, coconut oil or beef tallow.
  • Alkyl oligoglycosides are known substances which can be obtained by the relevant methods of preparative organic chemistry.
  • EP-A-0301298 As representative of the extensive literature regarding its structure and synthesis, reference is made to the European patent application EP-A-0301298.
  • the surfactants mentioned in the range from 1 to 10% by weight, based on the total formulation, are sufficient for wetting the chains and plate conveyor belts.
  • the amine oxides as well as the alkyl oligoglycosides can each be used alone or in a mixture.
  • auxiliaries from the prior art are, for example, alkoxylated fatty amines, fatty alcohols or alkoxylated fatty alcohols.
  • these surfactants have the disadvantage of increased stress corrosion cracking in PET bottles. Therefore, such surfactants are preferably not used in the sense of the present invention. If, however, this is desired, their share should be kept as low as possible.
  • the lubricants according to the invention preferably have a pH in the range from 4 to 11, in particular in the range from 6 to 9. If the pH of the lubricant is not already in this range, it can be added by adding an acid, preferably one Acid with the anion X "defined above, for example with acetic acid to the desired value.
  • the lubricants have a dynamic viscosity of less than 300 mPa.s, in particular less than 150 Pa.s and particularly preferably in the range from 5 to 100 mPa.s - each at 20 ° C.
  • a separate adjustment of the viscosity to the values mentioned is generally not necessary or is optionally carried out by adding suitable amounts of the preferred diluent water or a solubilizer.
  • the lubricants according to the invention can be prepared by simply mixing the components with water, optionally with the addition of the additives and / or auxiliaries mentioned.
  • the present invention relates to the use of lubricants of the type described above as chain lubricants in the food industry, in particular for automatic chain and belt lubrication systems.
  • the lubricants according to the invention are generally diluted with water.
  • Such aqueous application solutions generally contain 0.01% by weight of compounds of the general formulas (I) to (IV), preferably 0.01 to 0.2% by weight and in particular 0.02 to 0.04% by weight. % of such compounds and 0.1 to 1% by weight of the surfactants according to the invention mentioned.
  • the products according to the invention do not cause stress corrosion cracking and can therefore be used without problems for PET and PC containers.
  • PET polyethylene terephthalate
  • PC polycarbonate
  • Neutral pH values are particularly preferred for clear water-soluble concentrates.
  • the lubricants according to the invention are namely suitable in the concentration required for chain and belt lubrication also for cleaning empties as well as machines and machine parts.
  • central foam systems in the food industry are partially equipped with permanently installed, automatic systems which, after the production process or during breaks, automatically clean the outside of fillers, cylindroconical fermentation and storage tanks, conveyor belts and other machines and systems .
  • the lubricants according to the invention can be used with great advantage.
  • the present invention thus also relates to the use of lubricants of the type described above for disinfecting and cleaning empties, machines and systems in the food and beverage industry.
  • the PET bottles are filled with carbonated water of 4.5 vol% CO 2 and sealed accordingly.
  • the bottles are immersed in the substance to be tested in the bottom area (see Table 1) and stored at 38 ° C for 72 hours. The bottle is then sampled (from no stress cracks to the destroyed bottle).
  • Bottle transport speed approx. 1 m / s
  • Spraying the bottle conveyor belt with 0.4% band lubricant solution as mentioned in the examples. Spraying performance of the nozzles: 4 1 / h, 1 nozzle per belt.
  • the coefficient of friction " ⁇ " given below is the quotient of the measured tensile stress for a bottle to the weight of the bottle in grams. Furthermore, the products were tested with hard water (16 ° d) according to the provisions of DIN 53902.
  • the foam behavior is assessed according to the following classes:
  • the coefficient of friction should be 0.10 to 0.12 or less. If the value exceeds 0.15, the lubricating effect and thus the problem-free transport clearly deteriorates.
  • the clear water solubility of the application solutions should also be guaranteed over a longer test period in order to avoid deposits in ball valve filters, nozzles, spray and distribution systems, belts and transport goods.
  • the foam development should be low, since excessive foam not only interferes with the workflow (automatic bottle inspector) and occupational safety (risk of slipping), but also can soften the label and penetrate into the not yet sealed container. In addition, the coefficient of friction deteriorates due to excessive foaming tendency.
  • Anionic surfactants such as alkylbenzenesulfonate cannot be incorporated into the cationically reacting chain lubricants based on alkylamines, so that only amine oxides and alkyl polyglucosides remain for use in corresponding chain lubricants.
  • PET suitability: few cracks. Clear water solubility: opaque
  • PET suitability: no cracks. Clear water solubility: slightly opaque

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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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention concerne des lubrifiants sans savon à base de composés amphotères, d'amines primaires, secondaires et/ou tertiaires et/ou des sels d'amines de ce type des formules générales (I), (IIa): R4-NH-R5, (IIb): R4-N+H2-R5 X-, (IIIa): R4-NH-(CH2)3NH2, (IIIb): R4-NH-(CH2)3N+H3 X-, (IIIc) R4-N+H2-(CH2)3-N+H3 2X-, (IVa): R4-NR7R8 et/ou (IVb): R4-N+HR7R8 X-, qui contiennent des alkyldiméthylaminoxides et/ou des alkyloligoglucosides comme tensioactifs non ioniques.
EP93904004A 1992-03-02 1993-02-22 Base tensio-active pour lubrifiants sans savon Expired - Lifetime EP0629235B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4206506 1992-03-02
DE4206506A DE4206506A1 (de) 1992-03-02 1992-03-02 Tensidbasis fuer seifenfreie schmiermittel
PCT/EP1993/000413 WO1993018121A1 (fr) 1992-03-02 1993-02-22 Base tensio-active pour lubrifiants sans savon

Publications (2)

Publication Number Publication Date
EP0629235A1 true EP0629235A1 (fr) 1994-12-21
EP0629235B1 EP0629235B1 (fr) 1995-11-15

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Application Number Title Priority Date Filing Date
EP93904004A Expired - Lifetime EP0629235B1 (fr) 1992-03-02 1993-02-22 Base tensio-active pour lubrifiants sans savon

Country Status (8)

Country Link
US (1) US5565127A (fr)
EP (1) EP0629235B1 (fr)
AT (1) ATE130361T1 (fr)
CA (1) CA2131312A1 (fr)
DE (2) DE4206506A1 (fr)
DK (1) DK0629235T3 (fr)
ES (1) ES2079966T3 (fr)
WO (1) WO1993018121A1 (fr)

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Also Published As

Publication number Publication date
WO1993018121A1 (fr) 1993-09-16
DE59300967D1 (de) 1995-12-21
US5565127A (en) 1996-10-15
DK0629235T3 (da) 1996-03-25
DE4206506A1 (de) 1993-09-09
ES2079966T3 (es) 1996-01-16
ATE130361T1 (de) 1995-12-15
EP0629235B1 (fr) 1995-11-15
CA2131312A1 (fr) 1993-09-16

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