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EP3842510A1 - Agent de rinçage pour lave-vaisselles automatiques - Google Patents

Agent de rinçage pour lave-vaisselles automatiques Download PDF

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Publication number
EP3842510A1
EP3842510A1 EP20213008.4A EP20213008A EP3842510A1 EP 3842510 A1 EP3842510 A1 EP 3842510A1 EP 20213008 A EP20213008 A EP 20213008A EP 3842510 A1 EP3842510 A1 EP 3842510A1
Authority
EP
European Patent Office
Prior art keywords
rinse aid
weight
particularly preferably
polyol
carbon atoms
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Withdrawn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
EP20213008.4A
Other languages
German (de)
English (en)
Inventor
Thomas Doering
Michael Kreis
Thorsten Bastigkeit
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP3842510A1 publication Critical patent/EP3842510A1/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Withdrawn legal-status Critical Current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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2068—Ethers
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2041—Dihydric alcohols
    • C11D3/2044—Dihydric alcohols linear
    • 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
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2065—Polyhydric alcohols

Definitions

  • the present invention relates to a rinse aid for automatic dishwashers which comprises at least one nonionic surfactant and at least one polyol.
  • the present invention also relates to the use of nonionic surfactants and polyol to improve the rinsing performance.
  • the present invention also relates to an automatic dishwashing method using an agent of the present invention.
  • a rinse aid for machine dishwashing containing at least one nonionic surfactant and at least one polyol.
  • a first subject of the present application is therefore a rinse aid for machine dishwashing containing at least one nonionic surfactant and at least one polyol.
  • the present application also relates to the use of nonionic surfactants and polyol to improve the rinsing performance.
  • Yet another subject matter of the present application is an automatic dishwashing process using an agent according to the invention.
  • At least one as used herein means 1 or more, i.e., 1, 2, 3, 4, 5, 6, 7, 8, 9 or more.
  • the specification refers to the type of ingredient and not to the absolute number of molecules.
  • At least one surfactant thus means, for example, at least one type of surfactant, i.e. that one type of surfactant or a mixture of several different surfactants can be meant. Together with weight information, the information relates to all compounds of the specified type that are contained in the composition / mixture, i.e. that the composition does not contain any further compounds of this type beyond the specified amount of the corresponding compounds.
  • the agent according to the invention is preferably phosphate-free; this means that the agents according to the invention are preferably essentially phosphate-free, i.e. contain phosphate in amounts less than 1% by weight, preferably less than 0.1% by weight, and / or contain no deliberately added phosphate.
  • fatty acids or fatty alcohols or their derivatives - unless otherwise stated - represent branched or unbranched carboxylic acids or alcohols or their derivatives having preferably 6 to 22 carbon atoms.
  • the oxo alcohols or derivatives thereof obtainable, for example, by ROELEN's oxo synthesis, can also be used accordingly.
  • the agent according to the invention preferably contains 10 to 60% by weight of nonionic surfactant, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight.
  • a preferred subject of the present application is therefore a rinse aid which contains 10 to 60% by weight of nonionic surfactant, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight, based on the total amount of rinse aid, having.
  • alkyl glycosides of the general formula RO (G) x , in which R corresponds to a primary straight-chain or methyl-branched, in particular methyl-branched aliphatic radical with 8 to 22, preferably 12 to 18, carbon atoms and G. is the symbol which stands for a glycose unit with 5 or 6 carbon atoms, preferably for glucose.
  • the degree of oligomerization x which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; preferably x is 1.2 to 1.4.
  • Another class of usable nonionic surfactants are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably with 1 to 4 carbon atoms in the alkyl chain.
  • Nonionic surfactants of the amine oxide type for example N-cocoalkyl-N, N-dimethylamine oxide and N-tallowalkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides can also be suitable.
  • the amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, in particular not more than half that.
  • surfactants are the polyhydroxy fatty acid amides known as PHFA.
  • Low-foaming nonionic surfactants are preferably used, in particular alkoxylated, especially ethoxylated, low-foaming nonionic surfactants.
  • the rinsing agents particularly preferably contain nonionic surfactants from the group of alkoxylated alcohols, preferably alkoxylated fatty alcohols.
  • nonionic surfactants which have a melting point above room temperature are particularly preferred.
  • Surfactants to be used with preference come from the groups of alkoxylated nonionic surfactants, in particular ethoxylated primary alcohols and mixtures of these surfactants with structurally complex surfactants such as polyoxypropylene / polyoxyethylene / polyoxypropylene ((PO / EO / PO) surfactants).
  • Such (PO / EO / PO) non-ionic surfactants are also characterized by good foam control.
  • Alkoxylated alcohols in particular ethoxylated primary alcohols, particularly preferably ethoxylated and additionally otherwise alkoxylated primary alcohols, are preferably used as nonionic surfactants in the rinse aid according to the invention. It can be, for example, ethoxylated and propoxylated primary alcohols and / or ethoxylated and butoxylated primary alcohols.
  • the rinse aid is characterized in that it preferably contains a nonionic surfactant of the formula R 1 O [C 2 H 4 O] x [C 4 H 8 O] y R 2 , where, in the aforementioned formula, R 1 is a linear one or branched aliphatic hydrocarbon radical having 8 to 20 carbon atoms, in particular 10 to 18 carbon atoms, for example 10, 12, 14, 16 or 18 carbon atoms, or mixtures thereof; R 2 represents H or a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures of such hydrocarbon radicals, preferably H; x for values between 5 and 40, preferably between 8 to 36, in particular between 12 and 35, for example 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 , 27, 28, 29, 30, 31, 32, 33, 34, or 35; and y for values between 1 and 20, preferably between 2 to 18, in particular between 3 and 16, such as 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16, stands.
  • R 1 is a linear one
  • such a nonionic surfactant is preferably in an amount from 10 to approximately 60% by weight, preferably in an amount from 20 to approximately 55% by weight, particularly preferably in an amount from 30 to approximately 50% by weight, based in each case on the total weight of the rinse aid composition, contained therein.
  • a preferred subject of the present application is therefore a rinse aid which contains 10 to 60% by weight of nonionic surfactant of the formula R 1 O [C 2 H 4 O] x [C 4 H 8 O] y R 2 , in which case, in the aforementioned Formula, R 1 represents a linear or branched aliphatic hydrocarbon radical having 8 to 20 carbon atoms, in particular 10 to 18 carbon atoms, for example 10, 12, 14, 16 or 18 carbon atoms, or mixtures thereof; R 2 represents H or a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures of such hydrocarbon radicals, preferably H; x for values between 5 and 40, preferably between 8 to 36, in particular between 12 and 35, for example 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, or 35; and y for values between 1 and 20, preferably between 2 to 18, in particular between 3 and 16, such as 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16, is particularly preferably 20
  • nonionic surfactants are those which have alternating ethylene oxide and alkylene oxide units.
  • surfactants with EO-AO-EO-AO blocks are again preferred, one to ten EO or AO groups being bonded to one another before a block from the other groups follows.
  • nonionic surfactants of the general formula preferably in which R 1 is a straight-chain or branched, saturated or mono- or polyunsaturated C 6-24 -alkyl or -alkenyl radical; each group R 2 or R 3 is independently selected from -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 -CH 3 , CH (CH 3 ) 2 and the indices w, x, y, z independently of one another stand for whole numbers from 1 to 6.
  • nonionic surfactants which have a C 9-15 -alkyl radical with 1 to 4 ethylene oxide units, followed by 1 to 4 propylene oxide units, followed by 1 to 4 ethylene oxide units, followed by 1 to 4 propylene oxide units.
  • surfactants of the formula R 1 O [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y CH 2 CH (OH) R 2 , in which R 1 is a linear or branched aliphatic hydrocarbon radical with 4 up to 18 carbon atoms or mixtures thereof, R 2 denotes a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof, and x stands for values between 0.5 and 1.5 and y stands for a value of at least 15.
  • Especially the C (EO) -2-hydroxyalkyl ether 15-40 8-10 fatty alcohol (PO) 1 - - to the group of these nonionic surfactants include the C 2-26 fatty alcohol, for example (PO) 1 (EO) 22 -2 hydroxydecyl ether.
  • nonionic surfactants which can be used with preference are the end group-capped poly (oxyalkylated) nonionic surfactants of the formula R 1 O [CH 2 CH (R 3 ) O] x [CH 2 ] k CH (OH) [CH 2 ] j OR 2 , in which R 1 and R 2 represents linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals with 1 to 30 carbon atoms, R 3 represents H or a methyl, ethyl, n-propyl, iso-propyl, n-butyl, 2- Butyl or 2-methyl-2-butyl radical, x stands for values between 1 and 30, k and j for values between 1 and 12, preferably between 1 and 5.
  • each R 3 in the above formula R 1 O [CH 2 CH (R 3 ) O] x [CH 2 ] k CH (OH) [CH 2 ] j OR 2 can be different.
  • R 1 and R 2 are preferably linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having 6 to 22 carbon atoms, radicals having 8 to 18 carbon atoms being particularly preferred.
  • R 3 radical H, —CH 3 or —CH 2 CH 3 are particularly preferred.
  • Particularly preferred values for x are in the range from 1 to 20, in particular from 6 to 15.
  • each R 3 in the above formula may be different if x 2.
  • the value 3 for x has been chosen as an example and can be larger, the range of variation increasing with increasing x values and including, for example, a large number of (EO) groups combined with a small number of (PO) groups, or vice versa .
  • R 1 , R 2 and R 3 are as defined above and x stands for numbers from 1 to 30, preferably from 1 to 20 and in particular from 6 to 18.
  • Particularly preferred are surfactants in which the radicals R 1 and R 2 have 9 to 14 carbon atoms, R 3 stands for H and x assumes values of 6 to 15.
  • the group of these nonionic surfactants includes, for example, the C 4-22 fatty alcohol (EO) 10-80 -2-hydroxyalkyl ethers, in particular also the C 8-12 fatty alcohol (EO) 22 -2-hydroxydecyl ethers and the C 4-22 fatty alcohol (EO) 40-80 -2-hydroxyalkyl ethers.
  • the corresponding non-end-capped hydroxy mixed ethers can also be used. These can satisfy the above formulas, but where R 2 is hydrogen and R 1 , R 3 , A, A ', A ", A"', w, x, y and z are as defined above.
  • Anionic, cationic and / or amphoteric surfactants can be used in the rinse aid according to the invention.
  • anionic surface-active substances are suitable as anionic surfactants in the rinse aid. These are characterized by a water-solubilizing, anionic group such as. B. a carboxylate, sulfate, sulfonate or phosphate group and a lipophilic alkyl group with about 8 to 30 carbon atoms.
  • anionic group such as. B. a carboxylate, sulfate, sulfonate or phosphate group and a lipophilic alkyl group with about 8 to 30 carbon atoms.
  • the molecule can contain glycol or polyglycol ether groups, ester, ether and amide groups and hydroxyl groups.
  • Suitable anionic surfactants are preferably in the form of the sodium, potassium and ammonium as well as the mono-, di- and trialkanolammonium salts with 2 to 4 carbon atoms in the alkanol group.
  • Preferred anionic surfactants in the detergents or cleaning agents are alkyl sulfates, alkyl polyglycol ether sulfates and ether carboxylic acids with 10 to 18 carbon atoms in the alkyl group and up to 12 glycol ether groups in the molecule.
  • anionic surfactants instead of the aforementioned anionic surfactants or in conjunction with them, cationic and / or amphoteric surfactants can also be used.
  • Suitable amphoteric surfactants are, for example, betaines of the formula (R iii ) (R iv ) (R v ) N + CH 2 COO - , in which R iii is an alkyl radical with 8 to 25, preferably 10 to 21 carbon atoms, optionally interrupted by heteroatoms or heteroatom groups, and iv and R v denote identical or different alkyl radicals with 1 to 3 carbon atoms, in particular C 10 -C 18 -alkyl-dimethylcarboxymethylbetaine and C 11 -C 17 -alkylamidopropyl-dimethylcarboxymethylbetaine.
  • Suitable cationic surfactants include the quaternary ammonium compounds of the formula (R vi ) (R vii ) (R viii ) (R ix ) N + X - , in which R vi to R ix represent four identical or different types, in particular two long and two short-chain, alkyl radicals and X - stand for an anion, in particular a halide ion, for example didecyl-dimethyl-ammonium chloride, alkyl-benzyl-didecyl-ammonium chloride and mixtures thereof.
  • quaternary surface-active compounds in particular with a sulfonium, phosphonium, iodonium or arsonium group, which are also known as antimicrobial agents.
  • quaternary surface-active compounds with an antimicrobial effect, the agent can with an antimicrobial effect or whose antimicrobial effect, which may already be present due to other ingredients, can be improved.
  • the content of antionic, cationic and / or amphoteric surfactants is preferably less than 6% by weight, more preferably less than 4% by weight, very particularly preferably less than 2% by weight and in particular less than 1% by weight. -%.
  • Rinse aids which do not contain any anionic, cationic or amphoteric surfactants are particularly preferred.
  • polyols can be used in the composition according to the invention.
  • Polyols are organic compounds that contain several hydroxyl groups. Several here means that there are more than one and thus at least two hydroxyl groups per molecule. Likewise, polyols can have more than two, that is to say three or four or more, hydroxyl groups.
  • the rinse aid according to the invention preferably contains ethylene glycol, propane-1,2-diol, propane-1,3-diol, dipropylene glycol or mixtures thereof as polyol.
  • dipropylene glycol denotes a mixture of the isomers 1,1'-oxydi-2-propanol, 2,2'-oxydi-1-propanol and 2- (2-hydroxypropoxy) -1-propanol, 1,1'-oxydi -2-propanol is the dominant isomer in terms of quantity in this mixture.
  • the agent according to the invention particularly preferably contains propane-1,2-diol and / or propane-1,3-diol, very particularly preferably it contains propane-1,2-diol.
  • a preferred subject of the present application is therefore a rinse aid in which the polyol is selected from the group of ethylene glycol, propane-1,2-diol, propane-1,3-diol, dipropylene glycol or mixtures thereof, particularly preferably from propane-1 , 2-diol and / or propane-1,3-diol, very particularly preferably it contains propane-1,2-diol.
  • the agent according to the invention contains at least one nonionic surfactant and at least one polyol.
  • nonionic surfactant and polyol are present in the agent according to the invention in a weight ratio of 4: 1 to 1: 4, preferably 3: 1 to 1: 3, particularly preferably 3: 2 to 2: 3, to one another.
  • a preferred article is therefore a rinse aid in which nonionic surfactant and polyol are present in a weight ratio of 4: 1 to 1: 4, preferably 3: 1 to 1: 3, particularly preferably 3: 2 to 2: 3, to one another.
  • Another preferred subject is also a rinse aid in which the polyol is selected from the group of ethylene glycol, propane-1,2-diol, propane-1,3-diol, dipropylene glycol or mixtures thereof, particularly preferably from propane-1,2 -diol and / or propane-1,3-diol, very particularly preferably the at least one polyol is propane-1,2-diol, and / or in which nonionic surfactant and polyol are present in a weight ratio of from 4: 1 to 1: 4, preferably from 3: 1 to 1: 3, particularly preferably from 3: 2 to 2: 3, to one another.
  • the polyol is selected from the group of ethylene glycol, propane-1,2-diol, propane-1,3-diol, dipropylene glycol or mixtures thereof, particularly preferably from propane-1,2 -diol and / or propane-1,3-diol, very particularly preferably the at least one polyol is propane-1,2-d
  • the agent according to the invention preferably contains 10 to 60% by weight of polyol, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight.
  • a preferred subject of the present application is therefore a rinse aid which has 10 to 60% by weight of polyol, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight, based on the total amount of rinse aid .
  • Another preferred object is therefore a rinse aid which has 10 to 60% by weight of polyol, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight and / or which has 10 to 60% by weight.
  • % nonionic surfactant particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight, based in each case on the total amount of rinse aid.
  • a preferred item is a rinse aid which has 10 to 60% by weight of polyol, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight and / or which has 10 to 60% by weight nonionic surfactant, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight, in each case based on the total amount of rinse aid, and in which the polyol is selected from the group of ethylene glycol, propane-1, 2-diol, propane-1,3-diol, dipropylene glycol or mixtures thereof, particularly preferably from propane-1,2-diol and / or propane-1,3-diol, very particularly preferably the at least one polyol propane-1, 2-diol.
  • Automatic dishwashing detergents usually contain builders.
  • Builders that can be contained in these agents include, in particular, silicates, aluminum silicates (especially zeolites), carbonates, phosphonates, organic (co) builders, such as salts of organic di- and polycarboxylic acids, and mixtures of these substances.
  • crystalline layered silicates of the general formula NaMSixO2x + 1 ⁇ y H2O, in which M represents sodium or hydrogen, x a number from 1.9 to 22, preferably from 1.9 to 4, with particularly preferred values, can be used in automatic dishwashing detergents for x are 2, 3 or 4, and y is a number from 0 to 33, preferably from 0 to 20.
  • amorphous sodium silicates with a Na 2 O: SiO 2 module of 1: 2 to 1: 3.3, preferably 1: 2 to 1: 2.8 and in particular 1: 2 to 1: 2.6, which are preferably delayed in dissolution and have secondary washing properties.
  • Alkali carriers include, for example, alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogen carbonates, alkali metal sesquicarbonates, the mentioned alkali silicates, alkali metasilicates, and mixtures of the aforementioned substances, with the alkali metal carbonates, in particular sodium carbonate, sodium hydrogen carbonate or sodium sesquicarbonate, preferably being used.
  • the agents can also contain phosphonates as builders, which according to the invention are not subsumed under the phosphates.
  • a hydroxyalkane and / or aminoalkane phosphonate is preferably used as the phosphonate compound.
  • HEDP 1-hydroxyethane-1,1-diphosphonate
  • Preferred aminoalkanephosphonates are ethylenediamine tetramethylene phosphonate (EDTMP), diethylenetriamine pentamethylene phosphonate (DTPMP) and their higher homologues.
  • Organic (co) builders include, in particular, polycarboxylates / polycarboxylic acids, polymeric polycarboxylates, aspartic acid, polyacetals, dextrins, other organic cobuilders and the phosphonates already mentioned above as builders. These substance classes are described below.
  • Organic builder substances which can be used are, for example, the polycarboxylic acids which can be used in the form of the free acid and / or its sodium salts, polycarboxylic acids being understood as meaning those carboxylic acids which carry more than one acid function.
  • these are citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, nitrilotriacetic acid (NTA), provided that such use is not objectionable for ecological reasons, as well as mixtures of these.
  • the free acids typically also have the property of an acidifying component and thus also serve to set a lower and milder pH value for dishwashing detergents.
  • Citric acid, succinic acid, glutaric acid, adipic acid, gluconic acid and any mixtures of these should be mentioned in particular.
  • phosphate-free builders are aminocarboxylic acids and / or their salts. Particularly preferred representatives of this class are methylglycine diacetic acid (MGDA) and / or its salts and also glutamine diacetic acid (GLDA) and / or its salts or ethylenediamine diacetic acid (EDDS) and / or its Salts.
  • MGDA methylglycine diacetic acid
  • GLDA glutamine diacetic acid
  • EDDS ethylenediamine diacetic acid
  • the agent according to the invention preferably contains up to 5% by weight, particularly preferably up to 2% by weight, of builders, based on the total amount of rinse aid.
  • the rinsing agents according to the invention do not contain any of the builders mentioned.
  • the agents according to the invention are preferably essentially free from silicates and / or aluminum silicates and / or carbonates and / or phosphonates and / or organic (co) builders, ie the agents according to the invention preferably contain the builders mentioned in amounts less than 1 wt. %, preferably less than 0.1% by weight, and / or they contain no consciously added builder.
  • a preferred object is therefore a rinse aid which has no builder.
  • the pH of the rinse aid according to the invention can be adjusted by conventional pH regulators.
  • the pH of the agent is selected such that a 1% aqueous solution of the rinse aid at 20 ° C. has a pH in the range from 5.5 to 8.5, preferably from 6.0 to 8.0 , particularly preferably from 6.5 to 7.5.
  • a preferred object is therefore a rinse aid, the 1% strength aqueous solution of which has a pH value in the range from 5.5 to 8.5 at 20 ° C.
  • the rinse aid according to the invention preferably contains water.
  • the rinse aid according to the invention preferably contains water in an amount of up to 25% by weight, particularly preferably up to 15% by weight. In particularly preferred embodiments, the rinse aid according to the invention contains from 5 to 25% by weight or from 10 to 20% by weight of water, based on the total amount of rinse aid.
  • a preferred object is therefore a rinse aid that contains water, preferably in an amount of up to 25% by weight, particularly preferably up to 15% by weight, based on the total amount of rinse aid.
  • the rinse aid according to the invention can also contain polymers.
  • polyethylene glycols can be contained in the rinse aid according to the invention.
  • Polyethylene glycols of a certain molecular weight range can, for example, be used as solvents in the rinse aid according to the invention. These are preferably polyethylene glycols with an average molecular weight of 150 to 600 g / mol, especially preferably from 190 to 400 g / mol.
  • Particularly suitable polyethylene glycols have, for example, 4 to 8 repeating units and thus have a molar mass of 194 g / mol, 238 g / mol, 282 g / mol, 326 g / mol and 370 g / mol, respectively.
  • the rinse aid according to the invention can therefore contain polyethylene glycol, preferably with an average molecular weight of 150 to 600 g / mol, particularly preferably with an average molecular weight of 190 to 400 g / mol.
  • the rinse aid according to the invention can contain other types of polymers.
  • Automatic dishwashing detergents often have homo- and / or copolymers of maleic acid and / or its salts, acrylic acid and / or its salts, methacrylic acid and / or its salts.
  • these types of polymers can also be contained in the rinse aid according to the invention.
  • the rinse aid according to the invention does not contain any polymer containing monomers from the group of maleic acid and / or its salts, acrylic acid and / or its salts, methacrylic acid and / or its salts.
  • a preferred subject is therefore a rinse aid which does not contain any polymer containing monomers from the group of maleic acid and / or its salts, acrylic acid and / or its salts, methacrylic acid and / or its salts.
  • a preferred subject in the context of the present application is therefore a rinse aid in which the polyol is selected from the group of ethylene glycol, propane-1,2-diol, propane-1,3-diol, dipropylene glycol or mixtures thereof, particularly preferably from propane -1,2-diol and / or propane-1,3-diol, very particularly preferably the at least one polyol is propane-1,2-diol, and / or in which nonionic surfactant and polyol in a weight ratio of 4: 1 to 1: 4, preferably from 3: 1 to 1: 3, particularly preferably from 3: 2 to 2: 3, are present to one another and / or which does not contain any builder and / or no polymer containing monomers from the group of maleic acid and / or its salts , Acrylic acid and / or its salts, methacrylic acid and / or its salts and wherein preferably at least one surfactant according to the formula R 1 O [C 2 H 4 O] x [
  • a further preferred subject matter in the context of the present application is therefore a rinse aid which has 10 to 60% by weight of polyol, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight and / or which has 10% by weight to 60% by weight of nonionic surfactant, particularly preferably 20 to 55% by weight, very particularly preferably 30 to 50% by weight, based in each case on the total amount of rinse aid, and in which the polyol is selected from the group of Ethylene glycol, propane-1,2-diol, propane-1,3-diol, dipropylene glycol or mixtures thereof, particularly preferably from propane-1,2-diol and / or propane-1,3-diol, at least that is particularly preferred a polyol propane-1,2-diol, and / or which has water, preferably in an amount of up to 25% by weight, particularly preferably up to 15% by weight, based on the total amount of rinse aid, and as nonionic surfactant preferably at least one surfactant
  • a rinse aid in which the polyol is selected from the group of ethylene glycol, propane-1,2-diol, propane-1,3-diol, dipropylene glycol or mixtures thereof, particularly preferred from propane-1,2-diol and / or propane-1,3-diol, very particularly preferably the at least one polyol is propane-1,2-diol, and / or in which nonionic surfactant and polyol in a weight ratio of 4: 1 to 1: 4, preferably from 3: 1 to 1: 3, particularly preferably from 3: 2 to 2: 3, are present to one another and / or which has no builder and / or which has water, preferably in an amount of up to 25% by weight, particularly preferably up to 15% by weight, based on the total amount of rinse aid, and where the nonionic surfactant is preferably at least one surfactant according to the formula R 1 O [C 2 H 4 O] x [C 4 H 8 O]
  • the rinsing agents described herein are preferably pre-packaged into dosage units. These dosing units preferably include the amount of surface-active substances required for a rinse cycle. Preferred dosage units have a weight of 0.25 g to 25 g, preferably 1 g to 7.5 g, particularly preferably 3 g to 6 g. Preferred dosage units contain nonionic surfactant in an amount from 0.1 g to 10 g, preferably from 0.3 g to 5 g and particularly preferably from 0.5 to 3 g.
  • Prefabricated dosage units of the rinse aid described herein have a water-soluble coating.
  • a preferred object is therefore a rinse aid which is present as a pre-portioned single portion in a water-soluble envelope.
  • a rinse aid which is present as a pre-portioned one-time portion in a water-soluble envelope, the one-time portion having an amount of rinse aid from 0.25 g to 25 g, preferably from 1 g to 7.5 g, particularly preferably from 3 g to 6 g.
  • a rinse aid which is present as a pre-portioned one-time portion in a water-soluble envelope, the one-time portion having an amount of nonionic surfactant of 0.1 g to 10 g, preferably 0.3 g to 5 g and particularly preferably 0, 5 to 3 g.
  • This water-soluble envelope is preferably formed from a water-soluble film material which is selected from the group consisting of polymers or polymer mixtures.
  • the envelope can be formed from one or from two or more layers of the water-soluble film material.
  • the water-soluble film material of the first layer and the further layers, if any, can be the same or different.
  • Particularly preferred are foils which, for example, can be glued and / or sealed to form packaging such as tubes or pillows after they have been filled with an agent.
  • the water-soluble packaging can have one or more chambers.
  • the agent can be contained in one or more chambers, if present, of the water-soluble envelope.
  • the amount of agent preferably corresponds to the full or half the dose that is required for one wash cycle.
  • the water-soluble casing contains polyvinyl alcohol or a polyvinyl alcohol copolymer.
  • Water-soluble casings which contain polyvinyl alcohol or a polyvinyl alcohol copolymer have good stability with sufficiently high water solubility, in particular cold water solubility.
  • Suitable water-soluble films for producing the water-soluble envelope are preferably based on a polyvinyl alcohol or a polyvinyl alcohol copolymer, the molecular weight of which is in the range from 10,000 to 1,000,000 gmol-1, preferably from 20,000 to 500,000 gmol-1, particularly preferably from 30,000 to 100,000 gmol-1 and in particular from 40,000 to 80,000 gmol-1.
  • polyvinyl alcohol is usually done by hydrolysis of polyvinyl acetate, since the direct synthesis route is not possible.
  • polyvinyl alcohol copolymers which are produced from polyvinyl acetate copolymers.
  • at least one layer of the water-soluble coating comprises a polyvinyl alcohol whose degree of hydrolysis is 70 to 100 mol%, preferably 80 to 90 mol%, particularly preferably 81 to 89 mol% and in particular 82 to 88 mol%.
  • a polyvinyl alcohol-containing film material suitable for producing the water-soluble envelope can additionally contain a polymer selected from the group comprising (meth) acrylic acid-containing (co) polymers, polyacrylamides, oxazoline polymers, polystyrene sulfonates, polyurethanes, polyesters, polyethers, polylactic acid or mixtures of the above Polymers may be added.
  • a preferred additional polymer are polylactic acids.
  • Preferred polyvinyl alcohol copolymers include, in addition to vinyl alcohol, dicarboxylic acids as further monomers.
  • Suitable dicarboxylic acids are itaconic acid, malonic acid, succinic acid and mixtures thereof, with itaconic acid being preferred.
  • polyvinyl alcohol copolymers include vinyl alcohol as well as an ethylenically unsaturated carboxylic acid, its salt or its ester.
  • Such polyvinyl alcohol copolymers particularly preferably contain acrylic acid, methacrylic acid, acrylic acid esters, methacrylic acid esters or mixtures thereof in addition to vinyl alcohol.
  • the film material contains further additives.
  • the film material can for example contain plasticizers such as dipropylene glycol, ethylene glycol, diethylene glycol, propylene glycol, glycerine, sorbitol, mannitol or mixtures thereof.
  • Further additives include, for example, release aids, fillers, crosslinking agents, surfactants, antioxidants, UV absorbers, antiblocking agents, anti-stick agents or mixtures thereof.
  • Suitable water-soluble films for use in the water-soluble envelopes of the water-soluble packaging according to the invention are films which are sold by MonoSol LLC, for example under the designation M8630, C8400 or M8900.
  • Other suitable films include films with the designation Solublon® PT, Solublon® GA, Solublon® KC or Solublon® KL from Aicello Chemical Europe GmbH or the films VF-HP from Kuraray.
  • a rinse aid which is present as a pre-portioned one-time portion in a water-soluble envelope, the one-time portion having an amount of rinse aid from 0.25 g to 25 g, preferably from 1 g to 7.5 g, particularly preferably from 3 g to 6 g and wherein the water-soluble envelope comprises polyvinyl alcohol.
  • Another object of the invention is the use of nonionic surfactant and polyol to improve the rinsing performance.
  • Usual cleaning cycles in automatic dishwashing processes can have one or more pre-wash cycles and have one or more cleaning cycles, preferably one cleaning cycle, and one or more final rinse cycles, preferably one final rinse cycle.
  • Automatic dishwashing processes in which the cleaning cycle is carried out at a temperature in the range from 30 ° C. to 70 ° C., preferably from 35 ° C. to 60 ° C., particularly preferably from 35 ° C. to 50 ° C., particularly preferably from 40 to 45, are preferred ° C takes place and / or the rinse cycle is preferably carried out at a temperature in the range from 45 ° C to 80 ° C, particularly preferably from 50 ° C to 75 ° C.
  • the rinse aid tests were carried out in a Bosch SMS 86M12 DE with the Eco 50 ° C program (shortened time) at a water hardness of 21 ° dH in the presence of 100 g of ballast dirt (4 g margarine, 4 g potato starch, 1.6 table salt, 16 g whole egg, 74.4 g of water).
  • the cleaning gel B with Ecosurf Bright 1 was not storage-stable for 4 weeks at room temperature or at 40 ° C.

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EP20213008.4A 2019-12-17 2020-12-10 Agent de rinçage pour lave-vaisselles automatiques Withdrawn EP3842510A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1767173A1 (de) * 1968-04-09 1971-09-02 Henkel & Cie Gmbh Verfahren zum maschinellen Spuelen von Geschirr
EP0008059A1 (fr) * 1978-08-03 1980-02-20 BASF Aktiengesellschaft Procédé de lavage à la machine de la vaisselle utilisant des alcools polyvalents, des acides carboxyliques et/ou de leurs esters comme agents mouillants pour le rinçage
DE3005515A1 (de) * 1980-02-14 1981-08-20 Basf Ag, 6700 Ludwigshafen Verwendung von butoxylierten ethylenoxidaddukten an hoehere alkohole als schaumarme tenside in spuel- und reinigungsmitteln
WO2002002722A1 (fr) * 2000-06-29 2002-01-10 Ecolab Inc. Composition de produit de rinçage et procede de rinçage de la surface d'un substrat
DE602004009523T2 (de) * 2003-12-29 2008-08-28 The Procter & Gamble Company, Cincinnati Klarspülmittel
DE102012222268A1 (de) * 2012-12-05 2014-06-05 Henkel Ag & Co. Kgaa Wasserarme bis wasserfreie flüssige Reinigungsmittel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10225114A1 (de) * 2002-06-06 2003-12-24 Henkel Kgaa Klarspülmittel mit Glaskorrosionsschutz
KR101723248B1 (ko) * 2008-12-02 2017-04-04 디버세이, 인크 양이온성 전분을 포함하는 식기 세척 시스템

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1767173A1 (de) * 1968-04-09 1971-09-02 Henkel & Cie Gmbh Verfahren zum maschinellen Spuelen von Geschirr
EP0008059A1 (fr) * 1978-08-03 1980-02-20 BASF Aktiengesellschaft Procédé de lavage à la machine de la vaisselle utilisant des alcools polyvalents, des acides carboxyliques et/ou de leurs esters comme agents mouillants pour le rinçage
DE3005515A1 (de) * 1980-02-14 1981-08-20 Basf Ag, 6700 Ludwigshafen Verwendung von butoxylierten ethylenoxidaddukten an hoehere alkohole als schaumarme tenside in spuel- und reinigungsmitteln
WO2002002722A1 (fr) * 2000-06-29 2002-01-10 Ecolab Inc. Composition de produit de rinçage et procede de rinçage de la surface d'un substrat
DE602004009523T2 (de) * 2003-12-29 2008-08-28 The Procter & Gamble Company, Cincinnati Klarspülmittel
DE102012222268A1 (de) * 2012-12-05 2014-06-05 Henkel Ag & Co. Kgaa Wasserarme bis wasserfreie flüssige Reinigungsmittel

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