EP2963100B1 - Compositions aqueuses de rinçage - Google Patents

Compositions aqueuses de rinçage Download PDF

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Publication number
EP2963100B1
EP2963100B1 EP14175880.5A EP14175880A EP2963100B1 EP 2963100 B1 EP2963100 B1 EP 2963100B1 EP 14175880 A EP14175880 A EP 14175880A EP 2963100 B1 EP2963100 B1 EP 2963100B1
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Prior art keywords
stands
integer
composition
surfactant
surfactants
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German (de)
English (en)
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EP2963100A1 (fr
Inventor
Christoph Kolano
Karsten Holtin
Kaoru Tachikawa
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Kolb Distribution Ltd
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Kolb Distribution Ltd
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Priority to EP14175880.5A priority Critical patent/EP2963100B1/fr
Priority to EP14187013.9A priority patent/EP2963101B1/fr
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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
    • C11D1/66—Non-ionic compounds
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • 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
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • C11D1/8255—Mixtures of compounds all of which are non-ionic containing a combination of compounds differently alcoxylised or with differently alkylated chains
    • 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
    • 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
    • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups

Definitions

  • the present invention belongs to the area of detergents and refers to a new blend of surfactants, rinse aid compositions comprising them and their use as rinse aid surfactants.
  • Standard commercial rinse aids are mixtures of non-ionic surfactants, solubility promoters, organic acids solvents, polymers and dyes, water and optionally preservatives and fragrances.
  • the aim of the surfactants in these compositions consists in influencing the interfacial tension of the water in such a way that it can run off from the ware in the thinnest possible, coherent film so that no water drops, streaks or films are left behind during the subsequent drying process (so-called wetting effect).
  • wetting effect A distinction is generally made here between two types of deposits: firstly, the so-called “spotting” is investigated, which arises as a result of drying water drops, and secondly "filming" is evaluated, i.e.
  • combination products have increasingly been used; these combine the different functions, such as cleaning, clear rinsing, water softening and optionally metal protection, in particular silver protection, or a glass protection function in one, preferably solid, supply form.
  • Such compositions are referred to as multifunctional compositions.
  • so-called three-in-one products which combine cleaner, rinse aid and water softener in the form of a solid compact ("tab") are found on the market.
  • tab solid compact
  • Drying performance is to be understood here as meaning to what extent the cleaned ware still has water, preferably water drops, on the surface after passing through the dishwashing process.
  • dishwashing detergents or additives in such compositions, which shorten the high energy-expenditure drying step, or make it possible to dry at a lower temperature, while providing the same or even better results in shorter times.
  • Ways are therefore sought to improve the drying performance of cleaners for hard surfaces, particular with regard to plastic and metal ware, and more particular of dishwashing detergents for automatic dishwashing, where, here, in particular those solutions are sought in which the performance in the clear-rinse cycle is increased in order to shorten time and to save energy.
  • Object of the present invention is a liquid rinse aid composition, comprising a surfactant blend comprising or consisting of
  • surfactants blends comprising the non-ionic surfactants of formula (I) and (II), preferably in a ratio by weight of from about 1:5 to about 5:1 provides superior results with regard to drying cycle and cleaning performance of rinse aids, preferably with regard to plastic and metal, which are the most difficult materials to rinse.
  • the effect is demonstrated for various substrates in comparison with other non-ionic surfactants known from the state of the art for the same purpose.
  • the surfactant blends as proposed by the invention represent a binary mixture of an oxoalcohol and a fatty alcohol alkoxylated, more particularly component (a) represents an alkoxylated C 9/11 oxoalcohol of formula (I), wherein n1 stands for 8 to 9, p stands for 5 to 6 and n2 stands for 0.
  • component (b) represents a fatty alcohol having 10 carbon atoms (or a pure synthetic decanol) of formula (II), wherein m1 stands for 8 to 9, q stands for 5 to 6 and m2 stands for 0.
  • the preparation takes place in the manner known to the person skilled in the art by reacting fatty alcohols or oxoalcohols with the alkoxides in the presence of acidic or basic catalysts.
  • the components may show a broad or narrow homologue distribution.
  • the rinse aid compositions according to the present invention may contain the components (a) and (b) are in a ratio by weight of 5:1 to 1:5 and more particular in a ratio by weight of 2:1 to 3:1.
  • compositions of the present invention may encompass co-surfactants (component c) different from components (a) and (b).
  • co-surfactants -or emulsifiers - are of non-ionic nature, however also anionic or amphoteric surfactants are suitable.
  • Non-ionic surfactants include but not limited to:
  • Polyglycol ethers The addition products of ethylene oxide and/or propylene oxide onto fatty alcohols, fatty acids, alkylphenols, glycerol mono- and diesters and sorbitan mono- and diesters of fatty acids or onto castor oil are known commercially available products. They are homologue mixtures of which the average degree of alkoxylation corresponds to the ratio between the quantities of ethylene oxide and/or propylene oxide and substrate with which the addition reaction is carried out. C 12/18 fatty acid monoesters and diesters of addition products of ethylene oxide onto glycerol are known as lipid layer enhancers for cosmetic formulations.
  • Alkoxylated alcohols are particularly suitable are the alkoxylated alcohols.
  • alcohol alkoxylates are referred to as fatty alcohol or oxo alcohol alkoxylates and preferably conform to the formula (III), R 3 O(CH 2 CHR 4 O) z H (III) in which R 3 is a linear or branched alkyl and/or alkenyl radical having 6 to 22 carbon atoms, R 4 is hydrogen or an alkyl radical having 1 to 3 carbon atoms and z is numbers from 1 to 50.
  • the fatty alcohol alkoxylates according to the formula (III) can preferably contain ethylene oxide groups, propylene oxide groups or both alkoxides, where these may be present blockwise (first one block of ethylene oxide, then one block of propylene oxide, or vice versa; or the molecule contains several blocks of different alkoxylates in succession, where a block is to be understood as meaning at least two identical alkoxide group) or in random distribution.
  • Partial glycerides Typical examples of suitable partial glycerides are hydroxystearic acid monoglyceride, hydroxystearic acid diglyceride, isostearic acid monoglyceride, isostearic acid diglyceride, oleic acid monoglyceride, oleic acid diglyceride, ricinoleic acid monoglyceride, ricinoleic acid diglyceride, linoleic acid monoglyceride, linoleic acid diglyceride, linolenic acid monoglyceride, linolenic acid diglyceride, erucic acid monoglyceride, erucic acid diglyceride, tartaric acid monoglyceride, tartaric acid diglyceride, citric acid monoglyceride, citric acid diglyceride, malic acid monoglyceride, malic acid diglyceride and technical mixtures thereof which may still contain small quantities of triglyceride from the
  • Sorbitan esters are sorbitan monoisostearate, sorbitan sesquiisostearate, sorbitan diisostearate, sorbitan triisostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoerucate, sorbitan sesquierucate, sorbitan dierucate, sorbitan trierucate, sorbitan monoricinoleate, sorbitan sesquiricinoleate, sorbitan diricinoleate, sorbitan triricinoleate, sorbitan monohydroxystearate, sorbitan sesquihydroxystearate, sorbitan dihydroxystearate, sorbitan trihydroxystearate, sorbitan monotartrate, sorbitan sesquitartrate, sorbitan ditartrate, sorbitan tritartrate, sorbitan monoc
  • Polyglycerol esters are Polyglyceryl-2 Dipolyhydroxystearate (Dehymuls® PGPH), Polyglycerin-3-Diisostearate (Lameform® TGI), Polyglyceryl-4 Isostearate (Isolan® GI 34), Polyglyceryl-3 Oleate, Diisostearoyl Polyglyceryl-3 Diisostearate (Isolan® PDI), Polyglyceryl-3 Methylglucose Distearate (Tego Care® 450), Polyglyceryl-3 Beeswax (Cera Bellina®), Polyglyceryl-4 Caprate (Polyglycerol Caprate T2010/90), Polyglyceryl-3 Cetyl Ether (Chimexane® NL), Polyglyceryl-3 Distearate (Cremophor® GS 32) and Polyglyceryl Polyricinoleate (Admul® WOL 1403), Polyglyceryl-2 Dipolyhydroxystearate
  • polystyrene resin examples include the mono-, di- and triesters of trimethylol propane or pentaerythritol with lauric acid, cocofatty acid, tallow fatty acid, palmitic acid, stearic acid, oleic acid, behenic acid and the like optionally reacted with 1 to 30 mol ethylene oxide.
  • anionic surfactants are aliphatic C 12-22 fatty acids, such as palmitic acid, stearic acid or behenic acid for example, and C 12-22 dicarboxylic acids, such as azelaic acid or sebacic acid for example.
  • Further suitable anionic surfactants are also the salts of alkyl esters of phosphoric acid, preferably the mono- or dialkyl esters, where the alkyl radicals preferably have 6 to 12 and in particular 8 to 12 carbon atoms.
  • Amphoteric surfactants are amphoteric or zwitterionic surfactants.
  • Zwitterionic surfactants are surface-active compounds which contain at least one quaternary ammonium group and at least one carboxylate and one sulfonate group in the molecule.
  • Particularly suitable zwitterionic surfactants are the so-called betaines, such as the N-alkyl-N,N-dimethyl ammonium glycinates, for example cocoalkyl dimethyl ammonium glycinate, N-acylaminopropyl-N,N-dimethyl ammonium glycinates, for example coco-acylaminopropyl dimethyl ammonium glycinate, and 2-alkyl-3-carboxymethyl-3-hydroxyethyl imidazolines containing 8 to 18 carbon atoms in the alkyl or acyl group and cocoacylaminoethyl hydroxyethyl carboxymethyl glycinate.
  • betaines such as the N-alkyl-N,N-dimethyl ammonium glycinates, for example cocoalkyl dimethyl ammonium glycinate, N-acylaminopropyl-N,N-dimethyl ammonium glycinates, for example coco-acy
  • Ampholytic surfactants are also suitable emulsifiers.
  • Ampholytic surfactants are surface-active compounds which, in addition to a C 8/18 alkyl or acyl group, contain at least one free amino group and at least one -COOH- or -SO 3 H- group in the molecule and which are capable of forming inner salts.
  • ampholytic surfactants are N-alkyl glycines, N-alkyl propionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropyl glycines, N-alkyl taurines, N-alkyl sarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids containing around 8 to 18 carbon atoms in the alkyl group.
  • Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethyl aminopropionate and C 12/18 acyl sarcosine.
  • the rinse-aid compositions comprise a hydrotrope (component d).
  • Hydrotropes are agents which act as solubility promoter for a second, more sparingly soluble substance.
  • the preferred hydrotropes are selected from the group of cumene sulfonates, xylene sulfonates, propylene glycols and their mixtures, and here preferably 1,2-monopropylene glycol, preference being given to cumene- and xylene sulfonates.
  • Cumene- and xylene sulfonates are to be regarded as particularly preferred component (d), here in particular the sodium salts of cumene- or xylene sulfonate. Particular preference is given to cumene sulfonate, sodium salt.
  • the rinse aids according to the invention may comprise an organic acid and here usually organic hydroxycarboxylic acids which are preferably selected from the group mandelic acid, lactic acid, hydroxysuccinic acid, citric acid, tartaric acid and their mixtures, with particular preference being given to citric acid.
  • the rinse aid compositions of the present invention may further comprise non-ionic surfactants different from components (a) and (b), cumene sulfonate and/or citric acid.
  • composition may encompass
  • compositions of the present invention can also comprise polymers, although it may be preferred for the compositions to be free from polymers, in particular free from polymers which comprise poly(meth)acrylic acid monomers.
  • compositions are prepared by mixing the different components, optionally with the input of energy by stirring and/or heating of the mixtures. Preferably, after introducing the water as initial charge, the remaining components are added in any order with stirring and then the mixture is further stirred until clear.
  • compositions can also comprise further additives, such as e.g. alkylpyrrolidones, polymers, e.g. polycarboxylates or preservatives, e.g. isothiazolinones.
  • compositions can, however, also comprise perfumes, dyes, UV protection, e.g. benzophenones, pH regulators and further customary additives, e.g. those for preventing glass or metal corrosion and for protecting metals against tarnishing.
  • the pH of the compositions can be in the range from pH 3 to 10, preferably from pH 3.5 to 8 and particularly preferably from 4 to 7 or 4 to 6. It is generally the case that acidic compositions (pH ⁇ 7) may be preferred.
  • compositions which comprise only the components (a) to (e).
  • hydrocarbons and in particular terpenes preference is given to those aqueous compositions which comprise only the components (a) to (e).
  • the compositions are therefore free from terpenes and/or hydrocarbons.
  • the present application further provides the use of compounds of the general formula (I) according to claim for producing aqueous rinse aids, or for producing dishwashing detergents.
  • Particular preference is moreover given to the use of compounds of the general formula (I) according to the above description for improving the drying performance of rinse aids for dishwashing, or of dishwashing detergents.
  • Another object of the present invention relates to a surfactant blend consisting of
  • the components (a) and (b) are present in said blend in a ratio by weight of from 1:5 to 5:1, and preferably 2:1 to 3:1.
  • the surfactant blends according to formulae (I) and (II) can be incorporated into customary rinse aids and in particular dishwashing detergents on their own or in combination with the components (c) to (e).
  • the dishwashing detergents may be solid, or in pressed form, e.g. as a tablet, or be liquid or gel-like.
  • the compounds of the formula (I) are present in ready-formulated dishwashing detergents preferably in amounts of from 1 to 45 percent by weight, in particular in amounts of from 4 to 30 percent by weight and particularly preferably in amounts of from 15 to 30 percent by weight.
  • Such ready-formulated, thus standard commercial dishwashing detergents comprise e.g. builder materials, surfactants, bleaches, bleach activators, enzymes, enzyme stabilizers, corrosion inhibitors, film inhibitors, complexing agents, inorganic salts, graying inhibitors, foam inhibitors, silicone oils, soil release compounds, colour transfer inhibitors, salts of polyphosphonic acids, optical brighteners, fluorescent agents, disinfectants, fragrances, dyes, antistatics, ironing auxiliaries, phobicization and impregnation agents, swelling and nonslip agents, UV absorbers, pH regulators, or a mixture thereof.
  • builder materials e.g. builder materials, surfactants, bleaches, bleach activators, enzymes, enzyme stabilizers, corrosion inhibitors, film inhibitors, complexing agents, inorganic salts, graying inhibitors, foam inhibitors, silicone oils, soil release compounds, colour transfer inhibitors, salts of polyphosphonic acids, optical brighteners, fluorescent agents, disinfectants, fragrances, dyes, antistatics, ironing
  • Typical formulations of such compositions for machine dishwashing comprise pentasodium triphosphate (s. sodium phosphates) in amounts of 0, or 1 to 50 percent by weight.
  • Sodium citrate in amounts of from 30 to 45 percent by weight
  • sodium polycarboxylate in amounts of from 5 to 8 percent by weight
  • sodium metasilicate in amounts of from 10 to 60 percent by weight
  • sodium hydrogen carbonate in amounts of from 10 to 25 percent by weight
  • sodium disilicate in amounts of from 10 to 30 percent by weight
  • sodium perborate in amounts of from 5 to 10 percent by weight
  • bleach activators in amounts of from 2 to 4 percent by weight
  • enzymes preferably protease and amylase, in amounts of from 1 to 6 percent by weight
  • low-foam non-ionic surfactants in amounts of from 1 to 20 percent by weight
  • silver/glass protection and fragrances in amounts up to 5 percent by weight.
  • Suitable surfactants are anionic, non-ionic, cationic and/or amphoteric surfactants, where non-ionic surfactants and here low-foam non-ionic surfactants may be particularly preferred.
  • the latter are preferably selected from the class of fatty alcohol alkoxylate, preferably the fatty alcohol ethoxylates, where end-group-capped derivatives may also be suitable.
  • the improved drying performance on plastic and metal substrates is particularly well pronounced.
  • the improved drying behaviour is moreover more pronounced when using low-temperature programmes or saving or eco programmes with a reduced maximum temperature in the clear-rinse cycle and/or in the drying step.
  • the compounds of the formula (I) are used rinse aids or dishwashing detergents as additives which serve to improve the drying performance and/or the cleaning performance.
  • the surfactant blends can be used here either in aqueous compositions, preferably in aqueous rinse aids, or else in solid compositions. In general, the surfactant blends are suitable for producing rinse aids or dishwashing detergents.
  • the present application therefore further provides a method for rinsing a hard surface in an automatic dishwashing machine, wherein said surfaces are brought into contact with the rinse aid composition or the surfactant blend of the invention. More particularly, the present invention encompasses a method for automatic dishwashing, where the ware passes through at least one cleaning cycle using a detergent and water, at least one clear-rinse cycle using a rinse aid and water, and a final drying cycle, where the temperature in the drying cycle does not exceed 50 °C, where a surfactant blend as per the above description is used.
  • surfactant blend in a rinse aid composition as defined above, cleaning performance is improved and the drying temperatures can be reduced from the 70 to 60 °C otherwise customary in such processes to 55 °C or even lower, e.g. down to 45 or 50 °C.
  • Another object of the present invention is related to use of the surfactant blend as defined above for making liquid rinsing aids.
  • the use of the surfactant blends of the present invention in dishwashing detergents and/or in rinse aids thus permits both a notable improve in performance and a saving of energy compared with current dishwashing processes and compositions since, on account of the improved drying behaviour, a shorter drying time or preferably a lower drying temperature, preferably less than 60 degrees centigrade and in particular from 40 to 59 °C, very particularly preferably from 45 to 55 °C, can be used.
  • the washing process according to the above description is suitable for meeting the requirements placed on drying performance and energy consumption according to the German standard DIN EN 50242.
  • Another object of the present invention is related to the use of the liquid rinse aids for making solid dishwashing agents, such as for example powders, tablets, granules and extrudates.
  • Table 1 shows the exceptional performance of the compositions comprising the surfactant mixture according to the invention on plastic and metal wares. All the formulations have exactly the same frame formulation with the non-ionic surfactant active amount (w/w) being 14%. They differ only in non-ionic surfactant types.
  • the test method is defined by wfk institute .
  • Rinse aid performance is tested with an automatic dish washing machine of Miele G 1222 SC type over 3 rinse cycles, using Universal 55 °C programme with prewash. Water hardness is 8-10 °d.
  • the test compositions were placed in the dish washer with 50 g soil. 20 g automatic dishwasher cleaner was dosed at the beginning of washing process and 5 mL of rinse aid is dosed at the beginning of the rinse cycle.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
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Claims (15)

  1. Composition d'adjuvant de rinçage liquide, comprenant un mélange d'agents tensioactifs comprenant ou étant constitué
    (a) d'un premier agent tensioactif non ionique de formule (I)

            R1O(OE)n1(OP)p(OE)n2     (I)

    où
    R1 représente un radical alkyle linéaire ayant 9 ou 11 atomes de carbone ;
    n1 représente 0 ou un nombre entier allant de 6 à 10 ;
    n2 représente 0 ou un nombre entier allant de 6 à 10 ;
    p représente un nombre entier allant de 4 à 6 ;
    et
    (b) d'un deuxième agent tensioactif non ionique de formule (II)

            R2O(OE)m1(OP)q(OE)m2     (II)

    où
    R2 représente un radical alkyle linéaire ayant 10 atomes de carbone ;
    m1 représente 0 ou un nombre entier allant de 6 à 10 ;
    m2 représente 0 ou un nombre entier allant de 6 à 10 ;
    q représente 0 ou un nombre entier allant de 4 à 6 ;
    à condition que les deux sommes (n1+p+n2) et (m1+q+m2) soient différentes de 0.
  2. Composition selon la revendication 1, dans laquelle n1 représente 8 à 9, p représente 5 à 6 et n2 représente 0.
  3. Composition selon la revendication 1, dans laquelle m1 représente 8 à 9, q représente 5 à 6 et m2 représente 0.
  4. Composition selon la revendication 1, dans laquelle les composants (a) et (b) sont présents selon un rapport pondéral allant de 5:1 à 1:5.
  5. Composition selon la revendication 1, dans laquelle les composants (a) et (b) sont présents selon un rapport pondéral allant de 2:1 à 3:1.
  6. Composition selon la revendication 1, comprenant en outre des co-agents tensioactifs différents des composants (a) et (b), des hydrotropes et/ou des acides organiques.
  7. Composition selon la revendication 6, dans laquelle lesdits co-agents tensioactifs (composant c) sont choisis dans le groupe constitué par les agents tensioactifs non ioniques.
  8. Composition selon la revendication 6, dans laquelle lesdits hydrotropes (composant d) sont choisis dans le groupe constitué par les sulfonates de cumène, les sulfonates de xylène, les propylène glycols et leurs mélanges.
  9. Composition selon la revendication 6, dans laquelle lesdits acides organiques (composant e) sont choisis dans le groupe constitué par l'acide mandélique, l'acide lactique, l'acide hydroxysuccinique, l'acide citrique, l'acide tartrique, et leurs mélanges.
  10. Composition selon la revendication 1, comprenant en outre des agents tensioactifs non ioniques différents des composants (a) et (b), du sulfonate de cumène et/ou de l'acide citrique.
  11. Composition selon la revendication selon la revendication 1, comprenant :
    (a) de 5 à 15% en poids d'agent tensioactif de formule (I) ;
    (b) de 1 à 5% en poids d'agent tensioactif de formule (II) ;
    (c) 0 ou de 1 à 5% en poids de co-agents tensioactifs ;
    (d) 0 ou de 1 à 15% en poids d'hydrotropes ;
    (e) 0 ou de 1 à 5% en poids d'acides organiques ;
    à condition que les quantités totalisent, avec de l'eau et éventuellement des agents auxiliaires habituels, 100% en poids.
  12. Mélange d'agents tensioactifs, constitué
    (a) d'un premier agent tensioactif non ionique de formule (I)

            R1O(OE)n1(OP)p(OE)n2     (I)

    où
    R1 représente un radical alkyle linéaire ayant 9 ou 11 atomes de carbone ;
    n1 représente 0 ou un nombre entier allant de 6 à 10 ;
    n2 représente 0 ou un nombre entier allant de 6 à 10 ;
    p représente 0 ou un nombre entier allant de 4 à 6 ;
    et
    (b) d'un deuxième agent tensioactif non ionique de formule (II)

            R2O(OE)m1(OP)q(OE)m2     (II)

    où
    R2 représente un radical alkyle linéaire ayant 10 atomes de carbone ;
    m1 représente 0 ou un nombre entier allant de 6 à 10 ;
    m2 représente 0 ou un nombre entier allant de 6 à 10 ;
    q représente 0 ou un nombre entier allant de 4 à 6 ;
    à condition que les deux sommes (n1+p+n2) et (m1+q+m2) soient différentes de 0.
  13. Méthode de rinçage d'une surface dure dans un lave-vaisselle automatique, dans laquelle lesdites surfaces sont mises en contact avec la composition selon la revendication 1 ou le mélange d'agents tensioactifs selon la revendication 12.
  14. Utilisation du mélange d'agents tensioactifs selon la revendication 12, pour la fabrication d'adjuvants de rinçage liquides.
  15. Utilisation des adjuvants de rinçage liquides selon la revendication 1, pour la fabrication d'agents solides pour le lavage de vaisselle.
EP14175880.5A 2014-07-04 2014-07-04 Compositions aqueuses de rinçage Active EP2963100B1 (fr)

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EP14175880.5A EP2963100B1 (fr) 2014-07-04 2014-07-04 Compositions aqueuses de rinçage
EP14187013.9A EP2963101B1 (fr) 2014-07-04 2014-09-30 Agents de nettoyage pour surfaces dures

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EP14175880.5A EP2963100B1 (fr) 2014-07-04 2014-07-04 Compositions aqueuses de rinçage

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EP2963100A1 EP2963100A1 (fr) 2016-01-06
EP2963100B1 true EP2963100B1 (fr) 2018-09-19

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