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
• • C—CHEMISTRY; METALLURGY
  • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
  • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
  • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
  • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
  • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
• • C—CHEMISTRY; METALLURGY
  • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
  • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
  • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
  • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
  • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
  • C23F11/14—Nitrogen-containing compounds
  • C23F11/141—Amines; Quaternary ammonium compounds
  • C23F11/143—Salts of amines
• • C—CHEMISTRY; METALLURGY
  • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
  • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
  • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
  • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
  • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
  • C23F11/14—Nitrogen-containing compounds
  • C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom
• • 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
  • C10M2201/087—Boron oxides, acids or salts
• • 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
  • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
  • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
• • 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
  • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
  • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
  • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
• • 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
  • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
• • 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
  • C10M2215/22—Heterocyclic nitrogen compounds
  • C10M2215/223—Five-membered rings containing nitrogen and carbon only
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
  • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
  • C10N2030/18—Anti-foaming property
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
  • C10N2030/24—Emulsion properties
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/20—Metal working
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
  • C10N2050/01—Emulsions, colloids, or micelles
  • C10N2050/011—Oil-in-water
• • 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
  • C10N2070/00—Specific manufacturing methods for lubricant compositions
  • C10N2070/02—Concentrating of additives

Definitions

• the present invention relates to water-mixed metalworking fluids and concentrates for producing water-mixed metalworking fluids which
• Etherpyrrolidoncarbon Acid or salts thereof, which show emulsifying and corrosion inhibiting activity.
• Water-mixed metalworking fluids are the largest volume of metalworking fluids in the world, with emulsions accounting for the largest share of these. These emulsions are prepared by mixing with water from concentrates which typically have the following composition:
• the emulsifiers and corrosion inhibitors dominate in the concentrate in addition to the base oil.
• mainly ionic emulsifiers are used, some of which have a corrosion-inhibiting effect.
• One of the essential requirements of the emulsifiers is Here, in addition to the stabilization of the emulsion and a rapid, "spontaneous" emulsion formation, which is characterized by a rapid distribution of the concentrate when introduced into the water phase ("blooming").
• concentrate and water are mixed in a ratio of 1: 5 to 1: 100, preferably 1:10 to 1: 30.
• additives which have several functions in order to reduce the number of additives or their quantity.
• additives which do not necessitate or at least reduce the use of additives such as biocides, defoamers and water hardness complexing agents. From an ecological point of view, additives that are readily biodegradable are also required today.
• EP-AO 501 368 describes Alkenylbemsteinklaschamide and -imide, which are excellent corrosion inhibitors and emulsifiers, are generally to some extent hard water-stable and do not foam too much.
• the hemiamides in particular have a certain hydrolytic stability, which shortens the time of use of the emulsifiers.
• EP-A-1 354 905 and the literature cited therein describe ether carboxylic acids which can be used as emulsifiers with corrosion inhibiting action in metal working fluids and have very good hard water stability.
• the corrosion-inhibiting effect is, however, in part only weakly pronounced.
• these compounds have a strong foaming tendency, as indicated by their use in detergents and cleaners.
• their production is associated with a high water consumption and the accumulation of large amounts of sodium chloride, which is unpleasant from an ecological and economic point of view.
• the object of the present invention was to find easily accessible, hard water-stable and low-foaming emulsifiers having good corrosion protection properties for use in water-mixed metalworking fluids.
• etherpyrrolidonecarboxylic acids which are accessible from etheramines and itaconic acid in a condensation reaction are outstandingly suitable as emulsifiers in water-mixed metalworking fluids, since they are very stable to hard water and superior to the known ethercarboxylic acids in foam tendency and corrosion protection.
• Another advantage is that they are well compatible with most known additional additives such as nonionic emulsifiers, corrosion inhibitors, and EP / AW additives and thus easy to formulate.
• the present invention relates to compositions containing a base or base oil, 10 to 50 wt .-% Etherpyrrolidoncarbonklaren of formula (1) or salts thereof
• R 1 C ⁇ -Csjo alkyl, C 8 -C 3 -alkenyl, C 6 -C 30 aryl, C 7 -C 3 alkylaryl, o-
• M is hydrogen, alkali metal, alkaline earth metal or ammonium
• I is a number 1 to 50, m, n independently of I and each other is a number from 0 to 50,
• R 2 , R 3 , R 4 are each independently hydrogen, CH 3 or CH 2 CH 3 YC 2 -C 6 alkylene, and a pH regulator / neutralizing agent in an amount such that a
• composition according to the invention is also referred to herein as a concentrate.
• metalworking agent and metalworking fluid are used interchangeably.
• Another object of the invention is a hydrous metal working agent containing the composition of the invention and water in a weight ratio of 1: 5 to 1: 100.
• the invention hydrous metalworking agents are generally in the form of an emulsion.
• Another object of the invention is the use of Etherpyrrolidoncarbon Acid of formula (1) as emulsifier and / or
• Corrosion inhibitor in hydrous metalworking agents in concentrations of 0.1-10%.
• composition according to the invention preferably contains the base or base oil ad 100% by weight.
• the substituents M of the formula (1) are hydrogen, in the case of salts alkali metal ions, alkaline earth metal ions or ammonium ions.
• these are preferably compounds formed by protonation from the amines described below as pH regulators / neutralizing agents.
• the radical R 1 is preferably a linear or denaturated C 8 -C 30 -alkyl or alkenyl chain, eg. B. n- or iso-octyl, n- or iso-nonyl, n- or iso-decyl, undecyl, dodecyl, tetradecyl, hexadecyl, octadecyl, eicosyl or longer radicals.
• R 1 may be a C 6 -C 30 -aryl radical which is mono- or polysubstituted and may carry substituents, in particular alkyl chains.
• the radical R 1 is -0 from a synthetic alcohol such as isotridecanol or a Fischer-Tropsch alcohol, as commercially available under the trade names Lial ® or Exxal ® derived.
• the radical R 1 -0 has arisen from a fatty alcohol or a mixture of fatty alcohols. Suitable fatty alcohols are for. Caprylic alcohol, lauryl alcohol, myristyl alcohol, cocoyl, Palmityl, stearyl, oleyl, ricinyl, linoleyl, behenyl and tallow fatty alcohols. Particularly preferably, the radical R 1 -0 has arisen from oleylcetyl alcohol.
• the radical R 1 -0 is selected from alkylphenol, e.g. Butylphenol, tert-butylphenol, octylphenol, nonylphenol,
• Dodecylphenol, tetra-, hexa-, and Octadecenylphenol Eicosadecenylphenol, C 22 -, C 24 -, C 2 C 8 or ß o-alkylphenol, or mixtures thereof, derived.
• X and Y are preferably a group of the formula - (CHR 16 ) ⁇ - in which R 16 is H, CH 3 or CH 2 CH 3 and k is a number from 2 to 6.
• R 16 preferably represents H.
• k is preferably a number from 2 to 4.
• Particular preference is given to - (CHR 16 ) k -, for groups of the formulas -CH 2 -CH 2 -, -CH 2 --CH (CH 3 ) -, - (CH 2 J 3 - or -CH 2 -CH (CH 2 CH 3 ) -.
• R 16 may in all units - (CH 2 R 16 ) - have the same meaning, or different meanings.
• I preferably represents a number from 2 to 10.
• n is preferably a number from 1 to 10. In a further preferred embodiment, m is zero, 1, 2 or 3.
• n preferably represents a number from 1 to 10. In a further preferred embodiment, m is zero, 1, 2 or 3 and n is zero.
• Etherpyrrolidoncarbonklaren is known from the prior art and is carried out as described in Examples 1 to 3 by addition of itaconic acid to the corresponding ether amines R 1 -OX-NH 2 , z. B. under the name Jeffamine ® are commercially available, or by amination of the alcohols or alcohol alkoxylates directly, or by addition of acrylonitrile to the alcohols or alcohol ethoxylates with subsequent hydrogenation are available.
• US-4304690, US-4298708 and US-4235811 exemplify the preparation of etherpyrrolidonecarboxylic acids and their use in detergents and as a catalyst for the preparation of polyurethane foams.
• compositions according to the invention comprise at least one base or base oil selected from the group of mineral oils, synthetic hydrocarbons, alkylated aromatics, native oils, fatty acid esters, synthetic esters or synthetic hydrocarbon polymers and polymer esters.
• compositions according to the invention or the water-containing metalworking agents contain neutralizing agents.
• Suitable neutralizing agents are amines of the formula (3)
• R 7 , R 8 and R 9 are independently hydrogen or a hydrocarbon radical having 1 to 100 carbon atoms.
• R 7 and / or R 8 and / or R 9 independently of one another represent an aliphatic radical.
• This preferably has 1 to 24, more preferably 2 to 18 and especially 3 to 6 C atoms.
• the aliphatic radical may be linear, branched or cyclic. It can still be saturated or unsaturated. Preferably, the aliphatic radical is saturated.
• the aliphatic radical may carry substituents such as 5 hydroxy, C- ⁇ -C 5 alkoxy, cyano, nitrile, nitro and / or C -C 2 o-aryl groups such as phenyl.
• the C 5 -C 2 o-aryl radicals may in turn optionally substituted with halogen atoms, halogenated alkyl groups, -C 2 o alkyl, C 2 -C 2 o-alkenyl, hydroxyl, Ci-C5 alkoxy such as methoxy, Amide, cyano, nitrile, and / or nitro groups substituted.
• R 7 and / or R 8 and / or R 9 are independently hydrogen, a Ci-C 6 alkyl, C 2 -C 6 -alkenyl or C 3 -C 6 cycloalkyl radical and especially an alkyl radical having 1, 2, or 3 C atoms. These radicals can carry up to three substituents.
• Particularly preferred aliphatic radicals R 1 and / or R 2 are hydrogen, methyl, ethyl, hydroxyethyl, n-propyl, isopropyl, hydroxypropyl, n-butyl, isobutyl and tert-butyl, hydroxybutyl, n-hexyl, cyclohexyl , n-octyl, n-decyl, n-dodecyl, tridecyl, isotridecyl, tetradecyl, hexadecyl, octadecyl and methylphenyl.
• R 7 and R 8 together with the nitrogen atom to which they are attached form a ring.
• This ring preferably has 4 or more, such as 4, 5, 6 or more ring members.
• Preferred further ring members are carbon, nitrogen, oxygen and sulfur atoms.
• the rings in turn may carry substituents such as alkyl radicals.
• Suitable ring structures are, for example, morpholinyl, pyrrolidinyl, piperidinyl, imidazolyl and azepanyl radicals.
• R 7, R 8 and / or R 9 are independently an optionally substituted C 6 -C 2 aryl group or an optionally substituted heteroaromatic group having 5 to 12 ring members.
• R 7 , R 8 and / or R 9 independently of one another represent an alkyl radical interrupted by heteroatoms. Particularly preferred heteroatoms are oxygen and nitrogen.
• R 7 , R 8 and / or R 9 independently of one another are preferably radicals of the formula (4)
• R 10 is an alkylene group having 2 to 6 C atoms and preferably 2 to
• R 11 is hydrogen, a hydrocarbon radical having 1 to 24 C atoms or a group of the formula -R 10 -NR 12 R 13 , a is a number between 2 and 50, preferably between 3 and 25 and in particular between 4 and 10 and
• R 12 , R 13 independently of one another represent hydrogen, an aliphatic radical having 1 to 24 C atoms and preferably 2 to 18 C atoms, an aryl group or heteroaryl group having 5 to 12 ring members, one
• R 7, R 8 and / or R 9 are each independently radicals of the formula (5)
• R 14 is an alkylene group having 2 to 6 C atoms and preferably 2 to
• each R 15 is independently hydrogen, an alkyl or
• Hydroxyalkyl radical having up to 24 carbon atoms such as 2 to 20 carbon atoms, a polyoxyalkylene radical - (R 10 -O) p -R 11 , or a polyiminoalkylene radical HR 14 -N (R 15 )], r (R 15 ) stand wherein R 10 , R 11 , R 14 and R 15 have the meanings given above and q and p independently of one another are from 1 to 50 and b is a number from 1 to 20, and preferably from 2 to 10, such as three, four, five or six.
• the radicals of the formula (5) preferably contain 1 to 50, in particular 2 to 20, nitrogen atoms.
• water-soluble alkylamines such as methylamine
• the alkyl chains can be branched here.
• oligoamines such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, their higher homologs and mixtures of these.
• Amines in this series are the alkylated, especially methylated, representatives of these oligoamines, such as N, N-dimethyldiethyleneamine, N, N-dimethylpropylamine, and longer chain and / or higher alkylated amines of the same construction.
• Particularly suitable according to the invention are alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, diglycolamine, triglycolamine and higher homologs, methyldiethanolamine, ethyldiethanolamine, propyldiethanolamine, butyldiethanolamine and longer-chain alkyldiethanolamines, where the alkyl radical can be cyclic and / or branched.
• alkanolamines are dialkylethanolamines such as dimethylethanolamine, diethylethanolamine, dipropylethanolamine, dibutylethanolamine and longer-chain dialkylethanolamines, where the alkyl radical may also be branched or cyclic.
• dialkylethanolamines such as dimethylethanolamine, diethylethanolamine, dipropylethanolamine, dibutylethanolamine and longer-chain dialkylethanolamines, where the alkyl radical may also be branched or cyclic.
• aminopropanol, aminobutanol, aminopentanol and higher homologs, as well as the corresponding mono- and dimethylpropanolamines and longer-chain mono- and dialkylamino alcohols can be used.
• amines such as 2-amino-2-methylpropanol (AMP), 2-aminopropanediol, 2-amino-2-ethylpropanediol, 2-aminobutanediol and other 2-aminoalkanols, aminoalkylamine alcohols, tris (hydroxylmethyl) aminomethane are suitable, as well as end-capped Representatives such as methylglycolamine, methyldiglycolamine and higher homologs, di (methylglycol) amine, di (methyldiglycol) amine and their higher homologs and the corresponding triamines and polyalkylene glycol amines (eg Jeffamine ® ).
• AMP 2-amino-2-methylpropanol
• 2-aminopropanediol 2-amino-2-ethylpropanediol
• 2-aminobutanediol and other 2-aminoalkanols aminoalkylamine alcohols
• amines are used to adjust desired pH values.
• neutralizing agents are the oxides and hydroxides of the alkali and / or alkaline earth metals, such as.
• lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide and calcium oxide are particularly suitable neutralizing agents.
• the neutralizing agents are used in amounts needed to adjust the pH between 7 and 11.
• the quantities required for this purpose are preferably between 1 and 30%, preferably between 5 and 15%, in the water-containing metalworking fluid at 0.01-6%, preferably 0.1-1.5% (percent by weight).
• compositions according to the invention may contain further emulsifiers, preferably nonionic emulsifiers. Suitable emulsifiers are z. Fatty alcohol ethoxylates, fatty acid ethoxylates, fatty acid amide ethoxylates.
• Suitable fatty acids for this purpose are caprylic, lauryl, myristyl, cocoyl, palmityl, stearyl, oleyl, ricinyl, linoleyl, behenyl and ricinoleic acids and mixtures thereof, from which the suitable fatty alcohols and fatty amides can also be prepared .
• the degree of ethoxylation is generally 1-10, preferably 2-6 moles of ethylene oxide per functional group (OH, COOH, NH).
• ethoxylates of castor oil, and their esters are also suitable.
• compositions according to the invention 1-50%, preferably 5-25%, more preferably 10-20%, and in the hydrous metal working agent 0.01-10%, preferably 0.05-2.5%, particularly preferably 0.1 - Contain 2% nonionic emulsifiers (percentages by weight relative to total weight).
• the anionic emulsifiers mentioned in the introduction such as petroleum sulfonates, fatty acids, Alkenylbemsteinklaschamide and imides and ether carboxylic acids of the composition of the invention or in the water-containing metalworking agent may be included, as a rule but only in quantities in which the adverse properties have no significant effect. These additives can thus also contribute synergistically to the corrosion protection.
• the anionic emulsifiers may be added as salts or in their free acid form, which are converted to their anionic form by the neutralizing agents present.
• composition according to the invention or the water-containing metalworking agent may contain further corrosion inhibitors, in particular water-soluble ones
• Corrosion inhibitors are, for example, benzenesulfonic acid amidocaproic acid, toluenesulfonic acid amidocaproic acid, benzenesulfonic acid (N-methyl) amidocaproic acid, toluenesulfonic acid (N-methyl) amidocaproic acid (all formula (6)), alkanoylamidocarboxylic acids, especially isononanoylamidocaproic acid (formula (7)) and triazine-2,4,6- Tris (aminohexanoic acid) (formula (8))., Or the alkali, alkaline earth and amine salts of the compounds of formula (6) - (8).
• R 5 , R 6 H or CH 3
• Suitable corrosion inhibitors are linear or branched carboxylic acids such. Octanoic acid, 2-ethylhexanoic acid, n-nonanoic acid, n-decanoic acid, n-isodecanoic acid and other carboxylic acids,
• Dicarboxylic acids such as succinic acid, adipic acid, maleic acid, citric acid, and longer-chain dicarboxylic acids such as decanedioic, undecanedioic or dodecanedioic acid, the chains may be branched or cyclic, and polycarboxylic acids.
• suitable corrosion inhibitors are alkanesulfonic acid amides, alkanesulfonamidocarboxylic acids and
• Phtalklareschamide Furthermore, the salts of the compounds listed above can also be used.
• a widely used corrosion inhibitor which can likewise be used according to the invention is boric acid and its salts.
• carboxylic acid amides in particular carboxylic acid alkanolamides.
• this is the alkanolamides of fatty acids, eg. B. Tallölfett Textremonoethanolamid, Tallölfettklarediethanolamid, Kokosfett Maschinenremonoethanolamid, coconut fatty acid diethanolamide, and the mono- and diethanolamides of oleic acid, linolenic acid, stearic acid and other known fatty acids.
• the alkanolamides can also be prepared directly from the fats and oils, z. From tall oil, rapeseed oil, fish oil, olive oil, general vegetable oil, sunflower oil or castor oil.
• These corrosion inhibitors may be part of the composition according to the invention, but may also be added in the preparation of the water-containing metal working agent of the water phase.
• Their concentration in the composition according to the invention may preferably be 1-20%, in particular 1-10%, particularly preferably 2-5%.
• In the Water phase are added 0.1 to 10%, preferably 0.1 to 5%, particularly preferably 0.5 to 2%.
• In the hydrous metalworking agent are typically 0.01 to 4%, preferably 0.01 to 1%, more preferably 0.01 to 0.5% (percentages by weight relative to the total weight).
• composition of the invention and the hydrous metal working agent solubilizer, EP / AW additives such.
• chloroparaffins As chloroparaffins, phosphoric mono-, di- and triesters, fatty acid esters, polymeric esters, as well as sulfurized oils, fats and olefins, biocides, defoamers, non-ferrous metal inhibitors and complexing agents.
• phosphoric mono-, di- and triesters such as phosphoric mono-, di- and triesters, fatty acid esters, polymeric esters, as well as sulfurized oils, fats and olefins, biocides, defoamers, non-ferrous metal inhibitors and complexing agents.
• phosphoric mono-, di- and triesters As chloroparaffins, phosphoric mono-, di- and triesters, fatty acid esters, polymeric esters, as well as sulfurized oils, fats and olefins, biocides, defoamers, non
• concentration of these additives in the composition according to the invention is generally less than 5%, preferably 0.1-2.5%, in particular 0.1-1%.
• hydrous metalworking agent is their
• compositions of the invention are carried out by suitable stirrer or mixer at temperatures of 20-60 C C, preferably without heating.
• the ratio of concentrate to water phase is 1:20 to 1: 100, preferably 1:10 to 1:30.
• the preparation of the concentrates by mixing the additives can be carried out in any desired order, but preferably the base oil selected from the group of mineral oils, synthetic hydrocarbons, native oils, fatty acid esters, synthetic esters or synthetic hydrocarbon polymers and polymer esters, presented, then added the neutralizing agent and then the additives in a suitable order, so that no gel phases or high viscosities occur dosed. If all or part of the neutralizing agents are hydroxides or oxides, these are generally added only at the end.
• the Etherpyrrolidoncarbon Acid invention can be added at any point in the mixing process, but preferably after the base oil and amine-based neutralizing agents. At the end of the mixing it may be necessary to add suitable solubilizers to remove turbidities. Examples:
• Example 1 - 3 General procedure for the preparation of N-substituted 5-oxo-pyrrolidine-3-carboxylic acids
• Example 4 - 10 Composition of water-mixable concentrates and performance data of water-mixed metalworking agents (emulsions)
• concentrate 100% For clarification, the concentrates had to be mixed with solubilizers: to 100% concentrate, 3% tall oil fatty acid and 3% oleyl alcohol ethoxylated with 2 mol EO / OH (Genapol O 020) were added. For better comparability, the concentrates were not optimized for ideal physical properties.
• Table 1 Composition of the water-mixed metalworking fluids and performance results
• Examples 4-10 show that the hydrous metalworking agents of the foam compositions of the present invention are comparable to the prior art (the low foam height of Example 4 is due to the deposition of lime soaps which act defoaming).
• the emulsion quality (milky ⁇ opal ⁇ transparent) is equal to the same use concentration (Example 10) or significantly better (Example 8 and 9) and is not affected in hard water. The corrosion protection is given even at low application concentrations and greatly improved over Example 4 and 5.
• hydrous metalworking agents of the compositions of this invention exhibit better emulsion quality, breadth of use, and extended life over all of the prior art examples.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Mechanical Engineering (AREA)
• Metallurgy (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Lubricants (AREA)
• Preventing Corrosion Or Incrustation Of Metals (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=42575732

Family Applications (1)

Country Status (7)

Cited By (2)

Families Citing this family (7)

Citations (5)

Family Cites Families (24)

• 2009
  • 2009-06-25 DE DE102009030409A patent/DE102009030409A1/de not_active Withdrawn
• 2010
  • 2010-05-19 BR BRPI1011748A patent/BRPI1011748A2/pt not_active IP Right Cessation
  • 2010-05-19 US US13/376,418 patent/US9068137B2/en not_active Expired - Fee Related
  • 2010-05-19 CN CN2010800154866A patent/CN102369267B/zh not_active Expired - Fee Related
  • 2010-05-19 JP JP2012516535A patent/JP2012530817A/ja active Pending
  • 2010-05-19 EP EP10720355A patent/EP2446006A1/de not_active Withdrawn
  • 2010-05-19 WO PCT/EP2010/003061 patent/WO2010149250A1/de not_active Ceased

Patent Citations (5)

Also Published As

Similar Documents

Legal Events