EP2367919A1 - Produits de rinçage contenant des alcanolamides d'acides gras polyoxyalkylénés - Google Patents

Produits de rinçage contenant des alcanolamides d'acides gras polyoxyalkylénés

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Publication number
EP2367919A1
EP2367919A1 EP09798877A EP09798877A EP2367919A1 EP 2367919 A1 EP2367919 A1 EP 2367919A1 EP 09798877 A EP09798877 A EP 09798877A EP 09798877 A EP09798877 A EP 09798877A EP 2367919 A1 EP2367919 A1 EP 2367919A1
Authority
EP
European Patent Office
Prior art keywords
rinse aid
alkyl
acid
rinse
aid 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.)
Withdrawn
Application number
EP09798877A
Other languages
German (de)
English (en)
Inventor
Frederic Bauer
Sabine Both
Teresa Alexandre
Melanie Nagel
Ansgar Behler
Frank Clasen
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.)
Cognis IP Management GmbH
Original Assignee
Cognis IP Management GmbH
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 Cognis IP Management GmbH filed Critical Cognis IP Management GmbH
Priority to EP09798877A priority Critical patent/EP2367919A1/fr
Publication of EP2367919A1 publication Critical patent/EP2367919A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
    • C11D1/526—Carboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 are polyalkoxylated
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/835—Mixtures of non-ionic with cationic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/34—Organic compounds containing sulfur
    • C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/662—Carbohydrates or derivatives
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the present application relates to rinse aids for automatic dishwashing, which must contain certain fatty acid alkanolamidpolyalkylenglykolether, and the use of these amides to improve the drying performance of dishwashing detergents.
  • rinse aid is added to ensure that the water runs as completely as possible from the items to be washed, so that the different surfaces at the end of the washing program are residue-free and shiny.
  • Commercially available rinse aids are mixtures of nonionic surfactants, solubilizers, organic acids and solvents, water and optionally preservatives and fragrances.
  • the object of the surfactants in these compositions is to influence the interfacial tension of the water so that it is as thin as possible , coherent film can run off the dishes, so that during the subsequent drying process no drops of water, streaks or films remain (so-called net effect).
  • test persons are currently used who visually evaluate the parameters "spotting” and "filming" for cleaned objects, eg plates, glasses, knives, etc. Modern dishwashing detergents, therefore, contain rinse aid to enhance the drainage of water from the surfaces of the dishes.
  • rinse aid which does not dry on all substrates, such as plastic as well.
  • elaborate rinse aid are formulated, which have, for example, silicone compounds or fluorinated compounds, as described in US 5,880,089 or US 2005/0143280 Al be described.
  • silicone compounds or fluorinated compounds as described in US 5,880,089 or US 2005/0143280 Al be described.
  • these compounds are biologically difficult or even not degradable and sometimes even dangerous to the environment.
  • combination products are increasingly being used in which the various functions, such as cleaning, rinsing, water softening and, if appropriate, metal protection, in particular silver protection or a glass protection function, are combined in one, preferably solid form.
  • agents are referred to as multifunctional agents.
  • dishwashing processes There is therefore an increased need for technical solutions to make dishwashing processes more energy-efficient.
  • Such solutions may also be the use of dishwashing detergents, or additives in such compositions, which shorten the energy-consuming drying step, or make it possible to dry at a lower temperature.
  • the application relates to rinse aid comprising at least a) a surfactant according to the general formula (I)
  • R 1 is a saturated or unsaturated, branched or linear alkyl or alkenyl radical having 6 to 22 C atoms
  • R 2 is hydrogen or an alkyl radical having 1 to 6 C atoms or a radical R 3
  • R 3 is a radical A- (O-CH 2 -CHR 4 -) m -OR 5 and R 4 and R 5 are each independently a hydrogen atom or an alkyl radical having 1 to 4 C atoms and A is a group ( CH 2 ) n - or a hydroxyalkyl group having 2 to 6 C atoms, and n is an integer from 1 to 6 and m is integers or fractions of 1 to 10, b) is a hydrotop, c) is an organic hydroxycarboxylic acid and d) is water.
  • the compounds a) of the formula (I) are known per se and can be described as fatty acid alkanolamidepolyalkylene glycol ethers.
  • DE 102 59 405 A1 describes the preparation of such light-colored amides by alkoxylation of fatty acid alkanolamides.
  • This document describes a process for the preparation of light-colored fatty acid alkanolamidepolyalkylene glycol ethers according to the above general formula (I), wherein an addition of alkylene oxides to fatty acid alkanolamides takes place in the presence of alkaline catalysts, which is characterized by carrying out the alkoxylation in the presence of reducing agents and then subjecting the reaction products obtained in this way to a steam treatment under alkaline conditions.
  • fatty acid alkanolamides used which are condensation products of technical fatty acids with mono- or dialkanolamines, is not critical per se.
  • Typical starting materials used are those fatty acid alkanoamides which follow the formula R'CO-NR "R '" in which R'CO is a linear or branched, saturated or unsaturated acyl radical having 6 to 22 carbon atoms and 0 or 1 to 3 double bonds, R 'is a hydroxyalkyl group having 2 to 4 carbon atoms and R "and R'" is hydrogen or R '.
  • Typical examples are the condensation products of caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid, petroselinic acid, elaeostearic acid, 12-hydroxystearic acid, ricinoleic acid, gadoleic acid, arachidonic acid, behenic acid, erucic acid and their technical properties
  • Mixtures in particular coconut fatty acid, palm kernel fatty acid, palm fatty acid and tallow fatty acid with monoethanolamine, diethanolamine, monopropanolamine and dipropanolamine and mixtures thereof.
  • condensation products of coconut or Taigfett Textren be used with monoethanolamine. These condensation products are then reacted with alkoxides, for example according to the teaching of DE 102 59 405 A1.
  • alkoxides are ethylene oxide (EO), propylene oxide (PO) and butylene oxide (BO) or mixtures thereof.
  • EO ethylene oxide
  • PO propylene oxide
  • BO butylene oxide
  • the compounds of formula (I) may either be reacted with only one alkoxide or different alkoxides may be present side by side in the molecules. In such mixed alkoxylates, especially those having ethylene oxide and propylene oxide side by side are preferred.
  • the different alkoxylates may be distributed in blocks or in random distribution
  • the preparation is carried out by alkoxilating condensation products of alkanolamides with fatty acids in a manner known per se, using products which have been prepared according to the process of the above German Offenlegungsschrift No. 1,692,015 discloses carboxylic acid amides having 8-20 carbon atoms, and addition products thereof to less than 5 parts of ethylene oxide, in which case an adduct of a C 12/14 carboxylic acid amide with 3, 5 parts of ethylene oxide is described concretely, the latter being excluded from the protection of the present application.
  • preferred amides a) are characterized in that, in the formula (I), R 1 is a linear, saturated alkyl radical having 8 to 18 C atoms and R 4 is hydrogen, n is 2 and m is a whole or broken number between 1 and 6 means.
  • such amides a) are preferably those in which in the formula (I) the radical R 3 has the meaning (CH 2 ) n - (OC 2 H 4 ) x (OC 3 H 6 ) y -OH, where n is the abovementioned Represents numbers and preferably x represents numbers from 1 to 6, preferably to 4, and y represents integers or fractions from 1 to 6, preferably to 4 or has the value zero, with the proviso that the sum of x and y is a maximum 10 and preferably a maximum of 8, in particular a maximum of 5.
  • the distribution of the alkoxylates may be random or random.
  • the representation of the groups (OC 2 H 4 ) X and (OC 3 H 6 ) y in the above formulas therefore also encompasses all other conceivable sequences of the alkoxylates.
  • Such compounds in which the index y has a value of 1 to 6, but is not zero ie compounds which are ethoxylated and propoxylated means.
  • such ethoxylated and pro- polyoxylated compounds of the general formula (I) which contain 1 to 4 parts of propylene oxide and 2 to 3 parts of ethylene oxide.
  • Preferred compounds contain, for example, 3 parts of ethylene oxide and 1, 2 or 4 parts of propylene oxide, or 2 parts of ethylene oxide and 1 part of propylene oxide.
  • Further preferred compounds of the general formula (I) are the products of Examples 1 and 2, paragraphs [0012] to [0014] of the document disclosed in DE 102 59 405 A1.
  • Typical examples of compounds according to the formula (I) are alkoxylates of the condensation products of caproic, caprylic, capric, lauric, myristic, palmitic, stearic, isostearic, oleic, linoleic, linolenic, petroselic, elaeostearic, 12-hydroxystearic, ricinoleic, gadoleic, arachidonic acid , Behenic acid, erucic acid and their technical mixtures, in particular coconut oil fatty acid, palm kernel fatty acid, palm oil fatty acid and tallow fatty acid with monoethanolamine, diethanolamine, monopropanolamine and dipropanolamine and mixtures thereof. Condensation products of coconut or tallow fatty acids with monoethanolamine in alkoxylated form are preferably used.
  • the compounds according to a) can be mono- or dialkylated amides.
  • R 2 in the formula (I) is a hydrogen atom
  • R 2 and R 3 are each independently of one another radicals of
  • O 1 X for example, the number and distribution of the alkoxide groups in the radicals R and R may be different.
  • Preferred amides are those which have ethylene oxide and propylene oxide groups next to one another in the molecule, the proportion of the ethylene oxide groups preferably being higher than the proportion of the propylene oxide groups.
  • Particularly preferred compounds of the formula (I) contain 3 to 4 parts of ethylene oxide and 2 to 3 parts of propylene oxide. Preference is furthermore generally given to those compounds of the formula (I) in which the radical R 5 is a hydrogen atom.
  • a preferred embodiment of the invention relates to such rinse aid.
  • the compounds of the formula (I) necessarily contain ethylene oxide and propylene oxide groups. It may furthermore be preferred to use those compounds of the general formula (I) in which the index x has a higher value than the index, or the y has a value greater than x, or the x and y are equal.
  • the rinse aid contains a hydrotrope, preferably selected from the group of cumene sulfonates, xylene sulfonates, propylene glycols and preferably 1, 2-monopropylene glycol, alkyl (oligo) glycosides, ethoxylated alkyl (oligo) glycosides, alkylated alkyl (oligo) glycosides Alkyl phosphates and / or fatty alcohol alkoxylates are preferred with cumene and xylene sulfonates or the alkyl (oligo) glucosides.
  • Hydrotropes are agents that act as solubilizers for a second, less soluble substance.
  • Cumene and xylene sulfonates are to be regarded as particularly preferred component b), here in particular the sodium salts of cumene or xylene sulfonate. Particularly preferred is the cumene sulfonate, sodium salt.
  • Alkyl and alkenyl are known nonionic surfactants of the formula R 6 O- [G] p in which R 1 is an alkyl and / or alkenyl group containing 4 to 22 Carbon atoms, G is a sugar residue with 5 or 6 carbon atoms and p is a number from 1 to 10. They can be obtained by the relevant methods of preparative organic chemistry.
  • the alkyl and / or alkenyl oligoglycosides can be derived from aldoses or ketoses having 5 or 6 carbon atoms, preferably glucose.
  • the preferred alkyl and / or alkenyl oligoglycosides are thus alkyl and / or alkenyl oligoglucosides.
  • alkyl and / or alkenyl oligoglycosides having a mean degree of oligomerization p of from 1.1 to 3.0. From an application point of view, preference is given to those alkyl and / or alkenyl oligoglycosides whose degree of oligomerization is less than 1.7 and in particular between 1.2 and 1.4.
  • the alkyl or alkenyl radical R can be derived from primary alcohols having 4 to 11, preferably 8 to 10 carbon atoms.
  • Typical examples are butanol, caproic alcohol, caprylic alcohol, capric alcohol and undecyl alcohol, as well as their technical meanings, such as are obtained, for example, in the hydrogenation of technical fatty acid methyl esters or in the hydrogenation of aldehydes from Roelen's oxo synthesis.
  • the alkyl or alkenyl radical R 6 can also be derived from primary alcohols having 12 to 22, preferably 12 to 14 carbon atoms. Typical examples are lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, e-laidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, brassidyl alcohol and technical mixtures thereof which can be obtained as described above.
  • Alkyl are preferred (oligo) glucoside based on hydrogenated Ci 2 / i 4 coconut alcohol with a DP of 1 to 3.
  • a particularly preferred alkyl (oligo) glycoside is a product of Fa. Cognis, which under the designation Glucopon ® 215 UP is offered. It is an alkyl (oligo) glucoside, where R is linear alkyl radicals having 6 to 8 carbon atoms, the DP degree is between 1.1 and 1.2.
  • alkyl (oligo) glycosides which contain branched alkyl radicals.
  • Such compounds are disclosed, for example, in US Pat. No. 71, or in WO 94/21655 A1.
  • alkyl (oligo) glycosides based on branched alcohols preferably of the Guerbet alcohols type, where kyl (oligo) glycosides based on 2-ethylhexanol and 2-propylheptanol can be particularly preferred.
  • alkoxylated alkyl (oligo) glycosides which follow the formula (II)
  • R 7 is an optionally hydroxyl-functionalized alkyl, alkenyl or acyl radical having 6 to 22 carbon atoms
  • R is hydrogen or R
  • G is a sugar radical having 5 to 12 carbon atoms
  • p is a number from 1 to 10.
  • hydrotropes b) are methylated alkyl (oligo) glycosides, as described e.g. in the earlier, non-prepublished European Patent Application No. 08007291.1. These are alkyl and / or alkenyl ether mixtures of alkyl and / or alkenyl polyglycosides of the formula (III)
  • G is a sugar radical having 5 to 6 C atoms
  • R 9 is a C6 to C22 alkyl and / or alkenyl radical in the acetal bond
  • R 10 is a Cl to C4 alkyl and / or alkenyl group in ether bond
  • m is an average of from 1.2 to 1.8
  • n is a number from 1.4 to 2.6, preferably wherein at least 50% by weight of the alkyl and / or alkenyl ethers is a radical R 9 greater than or equal to a C chain 12 included.
  • the compounds of the formula (III) are prepared by reacting alkyl (oliog) glycosides with alkylating reagents such as alkenyl halides and / or alkyl or alkenyl tosylates and / or dialkyl or dialkenyl sulphates.
  • alkylating reagents such as alkenyl halides and / or alkyl or alkenyl tosylates and / or dialkyl or dialkenyl sulphates.
  • hydrotropes b) are also the alkyl esters of phosphoric acid, preferably the mono- or dialkyl esters, the alkyl radicals preferably having 6 to 12 and in particular 8 to 12 C atoms.
  • Another suitable group of hydrotropes b) are the alkoxylated fatty alcohols. Fatty alcohol ethoxylates are referred to as fatty alcohol or oxo alcohol alkoxylates and preferably follow the formula (IV),
  • R 1 ' is a linear or branched alkyl and / or alkenyl radical having 6 to 22 carbon atoms
  • R 12 is hydrogen or an alkyl radical having 1 to 3 C atoms and q is a number from 1 to 50.
  • the fatty alcohol alkoxylates of the formula (IV) may preferably contain ethylene oxide, propylene oxide or both alkoxides, these being blockwise (first one block ethylene oxide, then one block propylene oxide, or vice versa; or the molecule contains several blocks of different alkoxylates in a row, wherein at least two equal alkoxide groups are to be understood as meaning a block) or irregularly distributed (so-called "random distribution")
  • the preparation takes place in the manner known to the person skilled in the art by reacting fatty alcohols with the alkoxides in the presence of acidic or basic catalysts
  • fatty alcohol alkoxides which are ethoxylated and propoxylated are preferred.
  • the rinse aids according to the invention comprise an acid and here usually organic hydroxycarboxylic acids, which are preferably selected from the group consisting of mandelic acid, lactic acid, malic acid and tartaric acid, the citric acid being particularly preferred.
  • the rinse aid according to the invention still contain water, preferably in amounts, based on the total weight of the compositions, of from 10 to 90% by weight, preferably from 40 to 75% by weight and in particular from 50 to 65% by weight. Preference is given to the use of deionized water.
  • the amide component a) is preferably present in amounts of 1 to 80 wt .-%, preferably 10 to 50 wt .-% and in particular from 20 to 45 wt .-%, based on the weight of the total composition.
  • the hydrotropes b) are preferably present in amounts of 1 to 30 wt .-%, preferably 1 to 20 wt .-% and in particular from 1 to 10 wt .-% based on the weight of the total composition.
  • the acid component c) is preferably contained in amounts of 1 to 10 wt .-%, preferably from 1 to 5 wt .-% based on the weight of the total rinse aid.
  • Particularly preferred rinse aids contain the compounds of the formula (I) together with citric acid and either cumene sulfonates or alkyl (oligo) glucosides.
  • the agents of the present invention may also contain polymers, it being more preferred that the agents be free of polymers, especially free of polymers containing poly (meth) acrylic acid monomers.
  • the preparation of the agent is carried out by mixing the different components, optionally with entry of energy by stirring and / or heating of the mixtures. Preferably, after submission of the water, the remaining components are added in any order with stirring and then stirred further until the mixture is clear.
  • the rinse aids may be present in the rinse aids according to the invention.
  • these are preferably selected from the group of alcohols and here preferably the short-chain alcohols ethanol, propanol, isopropanol, butanol, isobutanol.
  • the agents may also contain other surfactants, e.g. Fatty alcohol alkoxylates or alkylpyrrolidones, polymers, e.g. Polycarboxylates or preservatives, e.g. Isothiazolinone included.
  • surfactants e.g. Fatty alcohol alkoxylates or alkylpyrrolidones
  • polymers e.g. Polycarboxylates or preservatives, e.g. Isothiazolinone included.
  • phosphates in particular of alkyl phosphates is possible.
  • compositions may also contain perfumes, dyes, UV protection, eg benzophenones, pH regulants and other customary additives, for example those for the prevention of glass or metal corrosion or for tarnish protection of metals.
  • the pH of the agents may range from pH 3 to 10, preferably from pH 3.5 to 8 and more preferably from 4 to 7 or 4 to 6. It generally applies that acidic agent (pH ⁇ 7) may be preferred. However, preference is given to those aqueous compositions which contain only components a) to c). Furthermore, it may be advantageous to dispense with the presence of hydrocarbons and in particular terpenes. In a preferred embodiment of the invention, the agents are therefore free of terpenes and / or hydrocarbons.
  • Another object of the present application relates to the use of compounds of general formula (I) according to claim 1 for the preparation of aqueous rinse aids, or for the production of dishwashing detergents. It is also particularly preferred to use compounds of general formula (I) as described above for improving the drying performance of dishwashing rinse aids or dishwashing detergents.
  • the fatty acid alkanolamide polyalkylene glycol ethers according to the formula (I) can be incorporated alone or in combination with the components a) to c) into common rinse aids and, in particular, dishwashing detergents.
  • the dishwashing agents may be solid or in compressed form, e.g. be present as a tablet, or be liquid or gel.
  • the compounds of the formula (I) are present in ready-form dishwashing agents, preferably in amounts of from 1 to 45% by weight, in particular in amounts of from 4 to 30% by weight and more preferably in amounts of from 15 to 30% by weight.
  • dishwashing detergents contain e.g. Builder materials, surfactants, bleaches, bleach activators, enzymes, enzyme stabilizers, corrosion inhibitors, scale inhibitors, complexing agents, inorganic salts, grayness inhibitors, foam inhibitors, silicone oils, soil release compounds, dye transfer inhibitors, salts of polyphosphonic acids, optical brighteners, fluorescers, disinfectants, fragrances, Dyes, antistatic agents, ironing auxiliaries, repellents and impregnating agents, swelling and anti-slip agents, UV absorbers, pH regulators, or mixtures thereof.
  • Builder materials e.g. Builder materials, surfactants, bleaches, bleach activators, enzymes, enzyme stabilizers, corrosion inhibitors, scale inhibitors, complexing agents, inorganic salts, grayness inhibitors, foam inhibitors, silicone oils, soil release compounds, dye transfer inhibitors, salts of polyphosphonic acids, optical brighteners, fluorescers, disinfectants, fragrances, Dyes, antistatic agents, ironing auxiliaries, repellents and imp
  • Typical formulations of such automatic dishwashing compositions contain pentasodium triphosphate (see Sodium Phosphates) in amounts of 0 or 1 to 50% by weight.
  • Sodium citrate in amounts of 30 to 45 wt .-%, sodium polycarboxylates in Amounts of from 5 to 8% by weight, sodium metasilicate in amounts of from 10 to 60% by weight, sodium hydrogencarbonate in amounts of from 10 to 25% by weight, sodium disilicate in amounts of from 10 to 30% by weight, sodium perborate in quantities from 5 to 10 wt .-%, bleach activators in amounts of 2 to 4 wt .-%, enzymes, preferably protease and amylase in amounts of 1 to 6 wt .-%, low-foam nonionic surfactants in amounts of 1 to 20 wt. %, Silver / glass protection and fragrances in amounts up to 5 wt .-%.
  • Suitable surfactants are anionic, nonionic, cationic and / or amphoteric surfactants, nonionic surfactants and here low-foam nonionic surfactants may be particularly preferred.
  • the latter are preferably selected from the class of the fatty alcohol alkoxylate, preferably the fatty alcohol ethoxylates, although end-capped derivatives may also be suitable.
  • Fatty alcohol ethoxylates are known as fatty alcohol or oxo alcohol ethoxylates and preferably follow the formula RO (CH 2 CH 2 O) n H in the R for a linear or branched alkyl and / or alkenyl radical having 6 to 22 carbon atoms and n is Numbers from 1 to 50 stands.
  • Typical examples are the adducts of an average of 1 to 50, preferably 5 to 40, and especially 10 to 25, moles of caproic alcohol, caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, Isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arabyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassidyl alcohol and technical mixtures thereof, for example in the high-pressure hydrogenation of technical methyl esters based on fats and oils or aldehydes from Roelen's oxo synthesis and as monomer fraction incurred in the dimerization of unsaturated fatty alcohols.
  • Preferred are adducts of 10 to 40 moles of ethylene oxide with technical fatty alcohols having 12 to 18 carbon
  • the compounds of the formula (I) rinse aids or dishwashing agents are used as additives which serve to improve the drying and / or cleaning performance.
  • the amides of general formula (I) can be used both in aqueous agents, preferably in aqueous rinse aids, but also in solid agents.
  • the amides of the formula (I) are suitable for the production of rinse aids or dishwashing detergents.
  • a further subject of the present application therefore relates to a method for automatic dishwashing, wherein the ware undergoes at least one cleaning cycle using a cleaning agent and water, at least one rinse using a rinse aid and water and a final drying cycle, the temperature in the Drying cycle does not exceed 50 ° C, wherein in step i) and / or ii) an agent containing a compound of formula (I) as described above, use.
  • the drying temperatures can be reduced from those otherwise usual in such processes from 70 to 60 ° C to 55 ° C or even below, e.g. be reduced to 45 or 50 ° C.
  • the use of the amides of formula (I) in dishwashing detergents and / or in rinse aids allows for significant energy savings compared to today's dishwashing processes and techniques since, due to the improved drying behavior, a shorter drying time or, preferably, a lower drying temperature, preferably less 60 ° C and especially from 40 to 59 ° C, most preferably from 45 to 55 ° C can be used.
  • Typical values for energy savings, which can be achieved in each case one run of the entire purification process, are preferably 0.05 to 0.2 kWh, compared to the same method, but that a reference rinse aid without the essential amide invention a).
  • rinse aid is selected according to the description in ⁇ VE / ⁇ NORM EN 50242 (Issue: 2003-11-01) Annex B.2 Rinse Aid [formula III].
  • the cleaning method according to the above description is suitable. net to meet the requirements of drying performance and energy consumption according to the German standard DIN EN 50242.
  • the following formulations 1 to 8 (all percentages are based on wt .-% based on the active substance content) were prepared by the ingredients were added successively with stirring in water.
  • EO stands for ethylene oxide
  • PO propylene oxide units.
  • Cups / bowls / glasses Cups / bowls / glasses:
  • dishes made of glass, porcelain, metal ( ⁇ cutlery) Tupperware and styrene-acrylonitrile plastic were likewise rinsed in a modified AEG Electrolux (model Favorit 60870) dishwashing machine under the same conditions and the drying was assessed and compared in accordance with EN 50242 , The individual multi-cycle test runs were tested in variable programs at 50 ° C as well as at 60 ° C in a rinse cycle and without a blower.

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  • Detergent Compositions (AREA)

Abstract

L'invention porte sur des produits de rinçage qui contiennent a) un tensio-actif de formule générale (I), dans laquelle R1 représente un radical alkyle ou alcényle à chaîne droite ou ramifiée, saturé ou insaturé, ayant 6 à 22 atomes de carbone, R2 est un atome d'hydrogène ou un radical alkyle ayant 1 à 6 atomes de carbone ou un radical R3, et R3 est un radical A-(O-CH2-CHR4-)m-OR5, et R4 et R5 représentent chacun indépendamment de l'autre un atome d'hydrogène ou un radical alkyle ayant 1 à 4 atomes de carbone, et A est un groupe (CH2)n- ou un groupe hydroxyalkyle ayant 2 à 6 atomes de carbone et n est un nombre entier de 1 à 6 et m représente des nombres entiers ou fractionnaires de 1 à 10, et en outre contiennent b) un hydrotrope, c) un acide hydroxycarboxylique organique, et d) de l'eau. Ces agents de rinçage présentant un comportement amélioré au séchage dans les lave-vaisselle automatiques, en permettant ainsi des opérations de lavage à des températures plus basses que les produits de référence usuels.
EP09798877A 2008-12-20 2009-12-11 Produits de rinçage contenant des alcanolamides d'acides gras polyoxyalkylénés Withdrawn EP2367919A1 (fr)

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EP09798877A EP2367919A1 (fr) 2008-12-20 2009-12-11 Produits de rinçage contenant des alcanolamides d'acides gras polyoxyalkylénés

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08022221A EP2204439A1 (fr) 2008-12-20 2008-12-20 Liquide de rinçage comprenant de l'acide gras d'éther de glycol d'alcanolamide-polyalkyles
PCT/EP2009/008867 WO2010069517A1 (fr) 2008-12-20 2009-12-11 Produits de rinçage contenant des alcanolamides d'acides gras polyoxyalkylénés
EP09798877A EP2367919A1 (fr) 2008-12-20 2009-12-11 Produits de rinçage contenant des alcanolamides d'acides gras polyoxyalkylénés

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EP2367919A1 true EP2367919A1 (fr) 2011-09-28

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EP08022221A Withdrawn EP2204439A1 (fr) 2008-12-20 2008-12-20 Liquide de rinçage comprenant de l'acide gras d'éther de glycol d'alcanolamide-polyalkyles
EP09798877A Withdrawn EP2367919A1 (fr) 2008-12-20 2009-12-11 Produits de rinçage contenant des alcanolamides d'acides gras polyoxyalkylénés

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EP2963100B1 (fr) 2014-07-04 2018-09-19 Kolb Distribution Ltd. Compositions aqueuses de rinçage
US10017714B2 (en) * 2015-05-19 2018-07-10 Ecolab Usa Inc. Efficient surfactant system on plastic and all types of ware

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EP2204439A1 (fr) 2010-07-07
US20110247657A1 (en) 2011-10-13
WO2010069517A1 (fr) 2010-06-24

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