EP2358853A1 - Détergents pour lave-vaisselle - Google Patents

Détergents pour lave-vaisselle

Info

Publication number
EP2358853A1
EP2358853A1 EP09764241A EP09764241A EP2358853A1 EP 2358853 A1 EP2358853 A1 EP 2358853A1 EP 09764241 A EP09764241 A EP 09764241A EP 09764241 A EP09764241 A EP 09764241A EP 2358853 A1 EP2358853 A1 EP 2358853A1
Authority
EP
European Patent Office
Prior art keywords
nonionic surfactant
carbon atoms
dishwashing detergent
alkyl radical
independently
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09764241A
Other languages
German (de)
English (en)
Other versions
EP2358853B1 (fr
Inventor
Johannes Zipfel
Nadine Warkotsch
Arnd Kessler
Christian Nitsch
Dorota SENDOR-MÜLLER
Britta Strauss
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
Priority to PL09764241T priority Critical patent/PL2358853T3/pl
Publication of EP2358853A1 publication Critical patent/EP2358853A1/fr
Application granted granted Critical
Publication of EP2358853B1 publication Critical patent/EP2358853B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • 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
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/378—(Co)polymerised monomers containing sulfur, e.g. sulfonate
    • 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
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • 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
    • C11D1/721—End blocked ethers

Definitions

  • the present application describes automatic dishwashing detergents, automatic dishwashing processes using these dishwashing detergents, and the use of these dishwashing detergents to improve drying in automatic dishwashing.
  • Dishwashing detergents are available to the consumer in a variety of forms. In addition to the traditional liquid hand dishwashing detergents, machine dishwashing detergents are particularly important with the spread of household dishwashers. These automatic dishwashing agents are typically offered to the consumer in solid form, for example as powders or as tablets, but increasingly also in liquid form.
  • One of the major objectives of the machine cleaners manufacturers is to improve the cleansing and rinsing performance of these compositions, with a recent focus on cleaning and rinsing performance in low temperature or reduced water use cleaning cycles.
  • Offer form be dosed separately to the automatic dishwashing detergent.
  • the rinse aid or rinse-active substances are integrated into the automatic dishwashing detergent ("more than 1" dishwashing detergent).
  • This application was based on the object to provide a machine dishwashing detergent with reduced deposit formation and improved drying and rinsing properties, wherein these improved drying and rinsing properties, in particular also at low-temperature Cleaning should, ie in cleaning processes with Spülflottentemperaturen 5O 0 C or below should be achieved.
  • a first subject of this application is a machine dishwashing detergent containing builder (s), enzyme (s) and a) a nonionic surfactant A of the general formula R 1 O (AlkO) x M (OAlk) y OR 2 , in which
  • R 1 and R 2 independently of one another represent a branched or unbranched, saturated or unsaturated, optionally hydroxylated alkyl radical having 4 to 22 carbon atoms;
  • Alk is a branched or unbranched alkyl radical having 2 to 4 carbon atoms
  • M is an alkyl radical from the group CH 2 , CHR 3 , CR 3 R 4 , CH 2 CHR 3 and CHR 3 CHR 4 , where R 3 and R 4 independently of one another represent a branched or unbranched, saturated or unsaturated alkyl radical having 1 to 18 carbon atoms; b) a nonionic surfactant B other than the nonionic surfactant A; c) an anionic polymer C
  • the present application relates to automatic dishwashing detergents.
  • Automatic dishwashing detergents are compositions which can be used to clean soiled dishes in a dishwasher automatic dishwashing process.
  • the automatic dishwasher detergents according to the invention differ, for example, from the machine rinse aid agents, which are always used in combination with automatic dishwashing detergents and do not develop their own cleaning action.
  • Dishwashing compositions according to the invention contain builder (s) and enzyme (s) to ensure their cleaning action.
  • machine dishwashing detergents according to the invention contain one or more builders.
  • the proportion by weight of the builders in the total weight of automatic dishwashing detergents according to the invention is preferably from 15 to 80% by weight and in particular from 20 to 70% by weight.
  • the builders include in particular carbonates, phosphates, citrates, organic cobuilders and silicates.
  • the alkali metal phosphates with particular preference for pentasodium or pentapotassium triphosphate (sodium or potassium tripolyphosphate), are of greatest importance in the washing and cleaning agent industry.
  • Alkali metal phosphates is the summary term for the alkali metal (especially sodium and potassium) salts of various phosphoric acids, in which one can distinguish metaphosphoric acids (HPO 3 ) n and orthophosphoric H 3 PO 4 in addition to higher molecular weight representatives.
  • the phosphates combine several advantages: they act as alkali carriers, prevent lime deposits on machine parts or lime incrustations in fabrics and also contribute to the cleaning performance.
  • Particularly preferred phosphates according to the invention are the pentasodium triphosphate, Na 5 P 3 O 10 (sodium tripolyphosphate) and the corresponding potassium salt pentapotassium triphosphate, K 5 P 3 O 10 (potassium tripolyphosphate).
  • the sodium potassium tripolyphosphates are also preferably used according to the invention.
  • phosphates are used as washing or cleaning substances in automatic dishwasher detergents in the context of the present application, these contain phosphate (s), preferably alkali metal phosphate (s), particularly preferably pentasodium or pentapotassium triphosphate (sodium or potassium tripolyphosphate), in quantities from 5 to 60% by weight, preferably from 15 to 45% by weight, in particular from 20 to 40% by weight, in each case based on the weight of the automatic dishwashing detergent.
  • phosphate preferably alkali metal phosphate (s), particularly preferably pentasodium or pentapotassium triphosphate (sodium or potassium tripolyphosphate)
  • organic co-builders are polycarboxylates / polycarboxylic acids, polymeric carboxylates, aspartic acid, polyacetals, dextrins and organic cobuilders. These classes of substances are described below.
  • Useful organic builders are, for example, the polycarboxylic acids which can be used in the form of the free acid and / or their sodium salts, polycarboxylic acids meaning those carboxylic acids which carry more than one acid function. These are, for example, citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), if such use is not objectionable for ecological reasons, and mixtures of these.
  • the free acids also typically have the property of an acidifying component and thus also serve to set a lower and milder pH of detergents or cleaners.
  • machine dishwasher detergents contain citrate as one of their essential builders.
  • Machine dishwashing detergents characterized in that they contain 2 to 40% by weight, preferably 5 to 30% by weight and in particular 7 to 20% by weight citrate, are preferred according to the invention.
  • the citrates are preferably used in combination with carbonates and / or bicarbonate.
  • Preferred automatic dishwasher detergents are therefore characterized by a builder combination of phosphate and carbonate / bicarbonate or of citrate and carbonate / bicarbonate (see Tables 1a and 1b below).
  • builder combinations of phosphate, citrate and carbonate / bicarbonate can be realized.
  • the dishwashing detergent contains at least two builders from the group of the phosphates, carbonates and citrates, the weight fraction of these builders, based on its total weight of the automatic dishwashing agent, preferably from 5 to 80% by weight, preferably 15 to 75 wt .-% and in particular 30 to 70 wt .-% is.
  • the combination of two or more builders from the above-mentioned group has proved to be advantageous for the cleaning and rinsing performance of automatic dishwashing agents according to the invention.
  • polymeric polycarboxylates for example the alkali metal salts of polyacrylic acid or polymethacrylic acid, for example those having a relative molecular mass of 500 to 70,000 g / mol.
  • Suitable polymers are, in particular, polyacrylates which preferably have a molecular weight of 2,000 to 20,000 g / mol. Because of their superior solubility, the short-chain polyacrylates, which have molar masses of from 2000 to 10000 g / mol, and particularly preferably from 3000 to 5000 g / mol, may again be preferred from this group.
  • copolymeric polycarboxylates in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid.
  • Copolymers of acrylic acid with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable.
  • Their relative molecular weight, based on free acids is generally from 2000 to 70000 g / mol, preferably from 20,000 to 50,000 g / mol and in particular from 30,000 to 40,000 g / mol.
  • the content of the automatic dishwashing agents in (co) polymeric polycarboxylates is preferably from 0.5 to 20% by weight and in particular from 3 to 10% by weight.
  • Inventive automatic dishwashing agents crystalline builder layered silicates of general formula NaMSi x O 2x + I ⁇ y H 2 O wherein M is sodium or hydrogen, x is a number from 1, 9 to 22, preferably from 1: 9 to 4, wherein Particularly preferred values 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 modulus of from 1: 2 to 1: 3.3, preferably from 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2.6, which preferably delayed release and have secondary washing properties.
  • the content of silicates is limited to amounts below 10% by weight, preferably below 5% by weight and in particular below 2% by weight.
  • Particularly preferred automatic dishwasher detergents according to the invention are silicate-free.
  • compositions according to the invention may contain alkali metal hydroxides.
  • alkali carriers are preferred in the cleaning agents only in small amounts, preferably in amounts below 10 wt .-%, preferably below 6 wt .-%, preferably below 5 wt .-%, particularly preferably between 0.1 and 5 wt .-% and in particular between 0.5 and 5 wt .-%, each based on the total weight of the cleaning agent used.
  • Alternative automatic dishwashing detergents are free of alkali metal hydroxides.
  • nonionic surfactant A of the general formula R 1 O (AlkO) x M (OAlk) y OR 2 , in which
  • R 1 and R 2 independently of one another represent a branched or unbranched, saturated or unsaturated, optionally hydroxylated alkyl radical having 4 to 22 carbon atoms;
  • Alk is a branched or unbranched alkyl radical having 2 to 4 carbon atoms
  • M is an alkyl radical from the group CH 2 , CHR 3 , CR 3 R 4 , CH 2 CHR 3 and CHR 3 CHR 4 , where R 3 and R 4 independently of one another represent a branched or unbranched, saturated or unsaturated alkyl radical having 1 to 18 carbon atoms, a nonionic surfactant B other than the nonionic surfactant A; an anionic polymer C from the group of copolymeric polycarboxylates and copolymers
  • Dishwashing agents contain enzyme (s) as a second constituent. These include in particular proteases, amylases, lipases, hemicellulases, cellulases, perhydrolases or oxidoreductases, and preferably mixtures thereof. These enzymes are basically of natural origin; Starting from the natural molecules, improved variants are available for use in detergents or cleaning agents, which are preferably used accordingly. Detergents or cleaning agents contain enzymes preferably in total amounts of 1 ⁇ 10 -6 to 5 wt .-% based on active protein. The protein concentration can be determined by known methods, for example the BCA method or the biuret method.
  • subtilisins those of the subtilisin type are preferable.
  • examples include the subtilisins BPN 'and Carlsberg and their advanced forms, the protease PB92, the subtilisins 147 and 309, the Alkaline protease from Bacillus lentus, subtilisin DY and the enzymes thermitase, proteinase K and the proteases TW3 and TW7, which are assigned to the subtilases, but no longer to the subtilisins in the narrower sense.
  • amylases which can be used according to the invention are the ⁇ -amylases from Bacillus licheniformis, from ⁇ . amyloliquefaciens, from ⁇ . stearothermophilus, from Aspergillus niger and A. oryzae, as well as improved for use in detergents and cleaners further developments of the aforementioned amylases. Furthermore, for this purpose, the ⁇ -amylase from Bacillus sp. A 7-7 (DSM 12368) and cyclodextrin glucanotransferase (CGTase) from ⁇ . agaradherens (DSM 9948).
  • lipases or cutinases are also usable according to the invention, in particular because of their triglyceride-splitting activities, but also in order to generate in situ peracids from suitable precursors.
  • lipases or cutinases include, for example, the lipases originally obtainable from Humicola lanuginosa (Thermomyces lanuginosus) or further developed, in particular those with the amino acid exchange D96L.
  • Oxidoreductases for example oxidases, oxygenases, catalases, peroxidases, such as halo, chloro, bromo, lignin, glucose or manganese peroxidases, dioxygenases or laccases (phenol oxidases, polyphenol oxidases) can be used according to the invention to increase the bleaching effect.
  • a protein and / or enzyme may be particularly protected during storage against damage such as inactivation, denaturation or degradation, such as by physical influences, oxidation or proteolytic cleavage.
  • damage such as inactivation, denaturation or degradation, such as by physical influences, oxidation or proteolytic cleavage.
  • inhibition of proteolysis is particularly preferred, especially if the agents also contain proteases.
  • Detergents may contain stabilizers for this purpose; the provision of such means constitutes a preferred embodiment of the present invention. Washing or cleaning-active proteases and amylases are generally not provided in the form of the pure protein but rather in the form of stabilized, storable and transportable preparations.
  • Such prefabricated preparations include, for example, the solid preparations obtained by granulation, extrusion or lyophilization or, especially in the case of liquid or gel-form detergents, solutions of the enzymes, advantageously as concentrated as possible, low in water and / or added with stabilizers or further auxiliaries.
  • the enzymes may be encapsulated for both the solid and liquid dosage forms, for example by spray-drying or extruding the enzyme solution together with a preferably natural polymer or in the form of capsules, for example those in which the enzymes are entrapped as in a solidified gel or in those of the core-shell type, in which an enzyme-containing core is coated with a water, air and / or chemical impermeable protective layer.
  • further active ingredients for example stabilizers, emulsifiers, pigments, bleaches or dyes, may additionally be applied.
  • Such capsules are applied by methods known per se, for example by shaking or rolling granulation or in fluid-bed processes.
  • such granules for example by applying polymeric film-forming agent, low in dust and storage stable due to the coating.
  • the enzyme protein forms only a fraction of the total weight of conventional enzyme preparations.
  • Protease and amylase preparations preferably used according to the invention contain between 0.1 and 40% by weight, preferably between 0.2 and 30% by weight, particularly preferably between 0.4 and 20% by weight and in particular between 0, 8 and 10 wt .-% of the enzyme protein.
  • nonionic surfactant A of the general formula R 0 (AlkO) x M (OAlk) y OR in which
  • R 1 and R 2 independently of one another represent a branched or unbranched, saturated or unsaturated, optionally hydroxylated alkyl radical having 4 to 22 carbon atoms;
  • Alk is a branched or unbranched alkyl radical having 2 to 4 carbon atoms
  • M is an alkyl radical from the group CH 2 , CHR 3 , CR 3 R 4 , CH 2 CHR 3 and CHR 3 CHR 4 , where R 3 and R 4 independently of one another represent a branched or unbranched, saturated or unsaturated alkyl radical having 1 to 18 carbon atoms, a nonionic surfactant B other than the nonionic surfactant A; an anionic polymer C from the group of copolymeric polycarboxylates and copolymers
  • a first constituent of the active ingredient combination of nonionic surfactants A and B and of the anionic polymer responsible for the improved drying of automatic dishwashing compositions is the nonionic surfactant A of the general formula R 1 O (AlkO) x M (OAlk) y OR 2 .
  • the proportion by weight of the nonionic surfactant A in the total weight of the inventive automatic dishwashing agent in a preferred embodiment is between 0.05 and 10% by weight, preferably between 0.1 and 8% by weight, preferably between 0.5 and 5% by weight. % and in particular between 1 and 3 wt .-%.
  • the group of nonionic surfactants A comprises a number of particularly preferred compounds.
  • automatic dishwashing agents contain as nonionic surfactant A a surfactant of the general formula R 1 -CH (OH) CH 2 -O (CH 2 CH 2 O) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R 2 is used in the
  • R, R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 6 to 22 carbon atoms
  • a nonionic surfactant A of the general formula R -CH (OH) CH 2 -O (CH 2 CH 2 O) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R 2 is used, in of the R, R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 6 to 22 carbon atoms;
  • - x and y are independently of each other values between 1 and 40, a nonionic surfactant B, which is different from the nonionic surfactant A; an anionic polymer C from the group of copolymeric polycarboxylates and copolymers
  • Polysulfonates the weights are based on the weight fraction of the enzyme preparation
  • R 1 -CH (OH) CH 2 -O (CH 2 CH 2 ⁇ ) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R 2 in which R is a linear, saturated alkyl radical having 8 to 16 carbon atoms, preferably 10 to 14 carbon atoms, and n and m independently of one another have values of 20 to 30.
  • Corresponding compounds can be obtained, for example, by reaction of alkyldiols HO-CHR-CH 2 -OH with ethylene oxide, followed by reaction with an alkyle epoxide to close the free OH functions to form a dihydroxy ether.
  • automatic dishwashing agents according to the invention contain as nonionic surfactant A a surfactant of the general formula R 1 -O (CH 2 CH 2 O) x CR 3 R 4 (OCH 2 CH 2 ) y OR 2 , in which US Pat
  • R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 4 to 22 carbon atoms;
  • R 3 and R 4 independently of one another are H or an alkyl radical or alkenyl radical having 1 to 18 carbon atoms and
  • - x and y independently represent values between 1 and 40;
  • R 1 is a nonionic surfactant A of the general formula R 1 -O (CH 2 CH 2 ⁇ ) x CR 3 R 4 (OCH 2 CH 2 ) y OR 2 is used in the
  • R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 4 to 22 carbon atoms;
  • R 3 and R 4 independently of one another are H or an alkyl radical or alkenyl radical having 1 to 18 carbon atoms and
  • R 3 and R 4 are H and the indices x and y independently of one another have values from 1 to 40, preferably from 1 to accept 15.
  • radicals R 1 and R 2 independently of one another represent saturated alkyl radicals having 4 to 14 carbon atoms and the indices x and y independently of one another Assume values of 1 to 15 and especially of 1 to 12.
  • the automatic dishwashing compositions according to the invention contain as a further essential constituent a second nonionic surfactant B.
  • the proportion by weight of the nonionic surfactant B in the total weight of the inventive automatic dishwashing agent in a preferred embodiment is between 0.1 and 30 wt .-%, preferably between 0.5 and 20 wt .-%, preferably between 1 and 10 wt .-% and in particular between 2 and 6 wt .-%.
  • Preferred nonionic surfactants B have the general formula R 1 O [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y [CH 2 CH (CH 3 ) O] z CH 2 CH (OH) R 2 in which R 1 represents a linear or branched aliphatic hydrocarbon radical having 4 to 22 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 and z stands for values between 0 and 40 and y for a value of at least 15.
  • the automatic dishwashing detergent contains, based on its total weight, nonionic surfactant of the general formula R 1 O [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y [CH 2 CH (CH 3 ) O ] z CH 2 CH (OH) R 2 in amounts of from 0.1 to 15% by weight, preferably from 0.2 to 10% by weight, particularly preferably from 0.5 to 8% by weight and in particular from 1, 0 to 6 wt .-%.
  • R 1 O [CH 2 CH 2 OI y CH 2 CH (OH) R 2
  • R 1 represent a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms or mixtures thereof
  • R 2 denotes a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof
  • y is a value between 15 and 120, preferably 20 to 100, in particular 20 to 80.
  • the group of these non-ionic surfactants include, for example, hydroxy mixed ethers of the general formula C 6-22 -CH (OH) CH 2 0- (EO) 2 oi 2 oC. 2 26 , for example the C 8 - I2 fatty alcohol (EO) 22 -2-hydroxydecyl ethers and the C 4 . 22 fatty alcohol (EO) 40 - 8 O-2-hydroxyalkyl ether.
  • Nonionic surfactant B is a surfactant of the general formula
  • R 1 CH (OH) CH 2 O- (CH 2 CH 2 O) 2 OI 2 O-R 2 is used, wherein R 1 and R 2 are independently a linear or branched aliphatic hydrocarbon radical having 2 to 20 carbon atoms particularly preferred.
  • nonionic surfactant A of the general formula R 0 (AlkO) x M (OAlk) y OR in which
  • R 1 and R 2 independently of one another represent a branched or unbranched, saturated or unsaturated, optionally hydroxylated alkyl radical having 4 to 22 carbon atoms;
  • Alk is a branched or unbranched alkyl radical having 2 to 4 carbon atoms
  • M is an alkyl radical from the group CH 2 , CHR 3 , CR 3 R 4 , CH 2 CHR 3 and CHR 3 CHR 4 , where R 3 and R 4 independently of one another represent a branched or unbranched, saturated or unsaturated alkyl radical having 1 to 18 carbon atoms
  • R 1 is CH (OH) CH 2 O- (CH 2 CH 2 O) 2 OI 2 O-R 2 , wherein R 1 and R 2 are independently a linear or branched aliphatic hydrocarbon radical having from 2 to 20 carbon atoms;
  • 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 thereof is up to 22 carbon atoms or mixtures thereof, R 2 is a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof, and x is a value between 0.5 and 4, preferably 0.5 to 1, 5, and y is a value of at least 15 stands.
  • R 1 O [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 OI y CH 2 CH (OH) R 2 is preferred, in which R 1 is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms or mixtures thereof R 2 is a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof and x is a value between 1 and 40 and y is a value between 15 and 40, wherein the alkylene units [CH 2 CH (CH 3 ) O ] and [CH 2 CH 2 O] are randomized, ie in the form of a random statistical distribution.
  • the rinse performance and drying can be markedly improved compared to conventional polyalkoxylated fatty alcohols without a free hydroxyl group.
  • the stated C chain lengths and degrees of ethoxylation or degrees of alkoxylation of the abovementioned nonionic surfactants represent statistical mean values which, for a specific product, may be an integer or a fractional number. Due to the manufacturing process, commercial products of the formulas mentioned are usually not made of an individual representative, but of mixtures, which may result in mean values for the C chain lengths as well as for the degrees of ethoxylation or degrees of alkoxylation and subsequently broken numbers.
  • nonionic surfactants can be used not only as individual substances, but also as surfactant mixtures of two, three, four or more surfactants.
  • Mixtures of surfactants are not mixtures of nonionic surfactants which fall in their entirety under one of the abovementioned general formulas, but rather those mixtures which contain two, three, four or more nonionic surfactants which are described by different of the abovementioned or other general formulas can be.
  • nonionic surfactants b) which have a melting point above room temperature.
  • the automatic dishwashing compositions according to the invention contain an anionic polymer C as a further essential constituent.
  • Preferred anionic copolymers are the copolymeric polycarboxylates and the copolymeric polysulfonates.
  • the proportion by weight of the copolymeric anionic polymer C in the total weight of the inventive automatic dishwashing agent in a preferred embodiment is between 0.1 and 20
  • Wt .-% preferably between 0.5 and 18 wt .-%, preferably between 1, 0 and 15 wt .-% and in particular between 4 and 14 wt .-%.
  • Automatic dishwashing detergents characterized in that the copolymeric anionic polymer C is selected from the group of hydrophobically modified polycarboxylates and polysulfonates are particularly preferred since the hydrophobic modification of the anionic copolymers improves the rinsing and drying properties of these agents while at the same time reducing them Pad formation can be achieved.
  • Particularly preferred machine dishwasher detergents according to the invention comprise a) from 0.5 to 5% by weight of a nonionic surfactant A of the general formula R 1 -CH (OH) CH 2 -O (CH 2 CH 2 O) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R 2 , in the
  • R, R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 6 to 22 carbon atoms
  • - x and y are independently of one another values between 1 and 40 b) 1 to 10% by weight of a nonionic surfactant B, which is different from the nonionic surfactant A; c) 1 to 15 wt .-% of a copolymeric anionic polymer C from the group of hydrophobically modified polycarboxylates and polysulfonates
  • Further preferred automatic dishwashing agents according to the invention comprise a) from 0.5 to 5% by weight of a nonionic surfactant A of the general formula R 1 -O (CH 2 CH 2 O) x CH 2 (OCH 2 CH 2 ) y OR 2 , in of the
  • R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 4 to 22 carbon atoms
  • - x and y independently represent values between 1 and 40; b) 1 to 10% by weight of a nonionic surfactant B other than the nonionic surfactant A; c) 1 to 15 wt .-% of a copolymeric anionic polymer C from the group of hydrophobically modified polycarboxylates and polysulfonates
  • the copolymers C may have two, three, four or more different monomer units.
  • Preferred copolymeric polysulfonates C contain, in addition to sulfonic acid-containing (s) monomer (s) at least one monomer from the group of unsaturated carboxylic acids.
  • unsaturated carboxylic acids are acrylic acid, methacrylic acid, ethacrylic acid, ⁇ -chloroacrylic acid, ⁇ -cyanoacrylic acid, crotonic acid, ⁇ -phenyl-acrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, citraconic acid, methylenemalonic acid, sorbic acid, cinnamic acid or mixtures thereof. It goes without saying that it is also possible to use the unsaturated dicarboxylic acids.
  • R 6 and R 7 are independently selected from -H, -CH 3 , -
  • Particularly preferred monomers containing sulfonic acid groups are 1-acrylamido-1-propanesulfonic acid, 2-acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methyl-1-propanesulfonic acid, 2-methacrylamido-2-methyl-1-propanesulfonic acid, Methacrylamido-hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid, allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3- (2-propenyloxy) propanesulfonic acid, 2-methyl-2-propene-1-sulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 3-sulfopropyl methacrylate, Sulfomethacrylamid, Sulfomethylmethacrylannid
  • the sulfonic acid groups may be wholly or partly in neutralized form, ie that the acidic acid of the sulfonic acid group in some or all sulfonic acid groups may be exchanged for metal ions, preferably alkali metal ions and especially sodium ions.
  • metal ions preferably alkali metal ions and especially sodium ions.
  • the monomer distribution of the copolymers preferably used according to the invention in the case of copolymers which contain only monomers from groups i) and ii) is preferably in each case from 5 to 95% by weight i) or ii), particularly preferably from 50 to 90% by weight monomer from group ii) and from 10 to 50% by weight of monomer from group i), in each case based on the polymer.
  • the molar mass of the sulfo copolymers preferably used according to the invention can be varied in order to adapt the properties of the polymers to the desired end use.
  • Preferred automatic dishwashing detergents are characterized in that the copolymers have molar masses of from 2000 to 200,000 gmol -1 , preferably from 4000 to 25,000 gmol -1, and in particular from 5000 to 15,000 gmol -1 .
  • the copolymers C further comprise at least one nonionic, preferably hydrophobic monomer in addition to carboxyl-containing monomer and sulfonic acid-containing monomer.
  • nonionic, preferably hydrophobic monomer in addition to carboxyl-containing monomer and sulfonic acid-containing monomer.
  • Automatic dishwashing detergent characterized in that the automatic dishwashing agent as anionic copolymer C is a copolymer comprising i) monomer (s) containing carboxylic acid groups ii) monomer (s) containing sulfonic acid groups iii) nonionic monomer (s). contains are preferred according to the invention.
  • nonionic monomers are butene, isobutene, pentene, 3-methylbutene, 2-methylbutene, cyclopentene, hexene, hexene-1, 2-methylpentene-1, 3-methylpentene-1, cyclohexene, methylcyclopentene, cycloheptene, methylcyclohexene, 2,4 , 4-trimethylpentene-1, 2,4,4-trimethylpentene-2,3,3-dimethylhexene-1, 2,4-dimethylhexene-1, 2,5-dimethlyhexene-1,3,5-dimethylhexene-1,4 4-dimethylhexane-1, ethylcyclohexyn, 1-octene, ⁇ -olefins having 10 or more carbon atoms such as 1-decene, 1-dodecene, 1-hexadecene, 1-octadecene and C22-
  • a nonionic surfactant A of the general formula R -CH (OH) CH 2 -O (CH 2 CH 2 O) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R 2 is used, in of the
  • R, R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 6 to 22 carbon atoms
  • I b is a nonionic surfactant A of the general formula R 1 -O (CH 2 CH 2 O) x CR 3 R 4 (OCH 2 CH 2 ) y OR 2 is used in the
  • R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 4 to 22 carbon atoms;
  • R 3 and R 4 independently of one another are H or an alkyl radical or alkenyl radical having 1 to 18 carbon atoms and
  • - x and y are independently of each other values between 1 and 40, a nonionic surfactant B, which is different from the nonionic surfactant A; an anionic polymer C comprising i) monomer (s) containing carboxylic acid groups ii) monomer (s) containing sulfonic acid groups iii) nonionic monomer (s).
  • compositions according to the invention may contain further washing or cleaning-active substances, preferably from the group of bleaches, bleach activators and bleach catalysts, glass corrosion inhibitors, corrosion inhibitors, fragrances and perfume carriers. These preferred ingredients will be described in more detail below.
  • Machine dishwashing detergents according to the invention may contain a bleaching agent as further constituent, with oxygen bleaches being preferred.
  • a bleaching agent as further constituent, with oxygen bleaches being preferred.
  • oxygen bleaches being preferred.
  • compounds serving as bleaches in water H 2 O 2 sodium percarbonate, sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
  • Other useful bleaching agents are, for example, peroxypyrophosphates, citrate perhydrates and H 2 O 2 -producing peracid salts or Peracids, such as perbenzoates, peroxophthalates, diperazelaic acid, phthaloiminoperacid or
  • bleaching agents from the group of organic bleaching agents can also be used.
  • Typical organic bleaching agents are the diacyl peroxides, e.g. Dibenzoyl.
  • Other typical organic bleaches are the peroxyacids, examples of which include the alkyl peroxyacids and the aryl peroxyacids.
  • Preferred automatic dishwashing agents according to the invention are characterized in that they contain an oxygen bleaching agent, preferably sodium percarbonate, more preferably a coated sodium percarbonate.
  • the proportion by weight of the bleaching agent, based on the total weight of the washing or cleaning agent, in preferred embodiments is between 2 and 30% by weight, preferably between 4 and 20% by weight and in particular between 6 and 15% by weight.
  • the automatic dishwasher detergents according to the invention may contain bleach activators.
  • bleach activators These compounds give under perhydrolysis aliphatic peroxycarboxylic acids having preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and / or optionally substituted perbenzoic acid.
  • Suitable substances are those which carry O- and / or N-acyl groups of the stated carbon atom number and / or optionally substituted benzoyl groups.
  • TAED tetraacetylethylenediamine
  • Automatic dishwashing detergent characterized in that it is a bleach activator bleach activator from the group of acetylated amines, preferably tetraacetylenediamine (TAED), are preferred according to the invention.
  • bleach activators in particular TAED, are preferably used in amounts of up to 10% by weight, in particular 0.1% by weight to 10% by weight, especially 0.5 to 8% by weight and more preferably 1, 0 to 6 Wt .-%, used.
  • the automatic dishwasher detergents according to the invention preferably contain at least one bleach catalyst.
  • bleach-enhancing transition metal salts or transition metal complexes such as, for example, Mn, Fe, Co, Ru or Mo saline complexes or carbonyl complexes.
  • Mn, Fe, Co, Ru, Mo, Ti, V and Cu complexes with N-containing tripod ligands and Co, Fe, Cu and Ru ammine complexes can also be used as bleach catalysts.
  • complexes of manganese in the oxidation state II, IM, IV or IV which preferably contain one or more macrocyclic ligands with the donor functions N, NR, PR, O and / or S.
  • ligands are used, the nitrogen Have donor functions.
  • bleach catalyst (s) in the compositions of the invention, which as macromolecular ligands 1, 4,7-trimethyl-1, 4,7-triazacyclononan (Me-TACN), 1, 4,7-triazacyclononane (TACN ), 1, 5,9-trimethyl-1, 5,9-triazacyclododecane (Me-TACD), 2-methyl-1, 4,7-trimethyl-1, 4,7-triazacyclononane (Me / Me-TACN) and or 2-methyl-1, 4,7-triazacyclononane (Me / TACN).
  • macromolecular ligands 1, 4,7-trimethyl-1, 4,7-triazacyclononan (Me-TACN), 1, 4,7-triazacyclononane (TACN ), 1, 5,9-trimethyl-1, 5,9-triazacyclododecane (Me-TACD), 2-methyl-1, 4,7-trimethyl-1, 4,7-triazacyclononane (Me / Me-TACN)
  • Machine dishwashing detergent characterized in that it further comprises a bleach catalyst selected from the group of bleach-enhancing transition metal salts and transition metal complexes, preferably from the group of complexes of manganese with 1, 4,7-trimethyl-1, 4,7-triazacyclononane (Me 3 -TACN ) or 1, 2, 4,7-tetramethyl-1, 4,7-triazacyclononane (Me 4 -TACN) are preferred according to the invention, since in particular the cleaning result can be significantly improved by the aforementioned bleach catalysts.
  • a bleach catalyst selected from the group of bleach-enhancing transition metal salts and transition metal complexes, preferably from the group of complexes of manganese with 1, 4,7-trimethyl-1, 4,7-triazacyclononane (Me 3 -TACN ) or 1, 2, 4,7-tetramethyl-1, 4,7-triazacyclononane (Me 4 -TACN) are preferred according to the invention, since in particular the cleaning result can be significantly improved by the aforementioned
  • the abovementioned bleach-enhancing transition metal complexes are used in customary amounts, preferably in an amount of up to 5% by weight, in particular of 0.0025% by weight to 1% by weight and more preferably of 0, 01 wt .-% to 0.30 wt .-%, each based on the total weight of the bleach catalyst-containing agents used. In special cases, however, more bleach catalyst can be used.
  • a nonionic surfactant A of the general formula R -CH (OH) CH 2 -O (CH 2 CH 2 O) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R 2 is used, in of the
  • R, R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 6 to 22 carbon atoms
  • I b is a nonionic surfactant A of the general formula R 1 -O (CH 2 CH 2 O) x CR 3 R 4 (OCH 2 CH 2 ) y OR 2 is used in the
  • R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 4 to 22 carbon atoms;
  • R 3 and R 4 independently of one another are H or an alkyl radical or alkenyl radical having 1 to 18 carbon atoms and
  • - x and y are independently of each other values between 1 and 40, a nonionic surfactant B, which is different from the nonionic surfactant A; an anionic polymer C comprising i) monomer (s) containing carboxylic acid groups ii) monomer (s) containing sulfonic acid groups iii) nonionic monomer (s).
  • the automatic dishwasher detergents according to the invention can be present in the ready-to-use form known to the person skilled in the art, that is to say, for example, in solid or liquid form but also as a combination of solid and liquid supply forms.
  • Powder, granules, extrudates or compactates, in particular tablets, are particularly suitable as firm supply forms.
  • the liquid supply forms based on water and / or organic solvents may be thickened, in the form of gels.
  • Inventive agents can be formulated as single-phase or multi-phase products.
  • automatic dishwashing detergents with one, two, three or four phases are preferred.
  • Machine dishwashing detergents characterized in that they are in the form of a prefabricated dosing unit with two or more phases, are particularly preferred.
  • the individual phases of multiphase agents may have the same or different states of matter.
  • Machine dishwashing detergents which have at least two different solid phases and / or at least two liquid phases and / or at least one solid and at least one liquid phase are preferred.
  • Particularly preferred are two- or multi-phase tablets, for example two-layer tablets, in particular two-layer tablets with a trough, and a molded body located in the trough.
  • Automatic dishwasher detergents according to the invention are preferably prefabricated to form metering units. These metering units preferably comprise the necessary for a cleaning cycle amount of washing or cleaning-active substances. Preferred metering units have a weight between 12 and 30 g, preferably between 14 and 26 g and in particular between 15 and 22 g.
  • the volume of the aforementioned metering units and their spatial form are selected with particular preference so that a metering of the prefabricated units is ensured via the metering chamber of a dishwasher.
  • the volume of the dosing unit is therefore preferably between 10 and 35 ml, preferably between 12 and 30 ml and in particular between 15 and 25 ml.
  • the automatic dishwasher detergents according to the invention in particular the prefabricated metering units, have a water-soluble coating, with particular preference.
  • disintegration aids so-called tablet disintegrants
  • disintegration aids are, for example, carbonate / citric acid systems, although other organic acids can also be used.
  • Swelling disintegration aids are, for example, synthetic polymers such as polyvinylpyrrolidone (PVP) or natural polymers or modified natural substances such as cellulose and starch and their derivatives, alginates or casein derivatives.
  • Disintegration aids are preferably used in amounts of from 0.5 to 10% by weight, preferably from 3 to 7% by weight and in particular from 4 to 6% by weight, based in each case on the total weight of the agent containing the additive ,
  • Preferred disintegrating agents are cellulosic disintegrating agents, so that preferred washing or cleaning agents comprise such cellulose-based disintegrants in amounts of from 0.5 to 10% by weight, preferably from 3 to 7% by weight and in particular from 4 to 6% by weight. % contain.
  • the cellulose used as a disintegration aid is preferably not used in finely divided form, but converted into a coarser form, for example granulated or compacted, before it is added to the premixes to be tabletted.
  • the particle sizes of such disintegrating agents are usually above 200 .mu.m, preferably at least 90 wt .-% between 300 and 1600 .mu.m and in particular at least 90 wt .-% between 400 and 1200 microns.
  • Preferred disintegration aids preferably a disintegration aid based on cellulose, preferably in granular, cogranulated or compacted form, are present in the disintegrating agent-containing agents in amounts of from 0.5 to 10% by weight, preferably from 3 to 7% by weight and in particular from 4 to 6 wt .-%, each based on the total weight of the disintegrating agent-containing agent.
  • gas-evolving effervescent systems can furthermore be used as tablet disintegration auxiliaries.
  • preferred effervescent systems consist of at least two constituents which react with one another to form gas, for example alkali metal carbonate and / or bicarbonate and an acidifying agent which is suitable for liberating carbon dioxide from the alkali metal salts in aqueous solution.
  • An acidifying agent which releases carbon dioxide from the alkali salts in aqueous solution is, for example, citric acid.
  • Another object of the present application is a method for cleaning dishes in a dishwasher, using a machine dishwashing agent according to the invention, wherein the automatic dishwashing detergent preferably metered during the passage of a dishwasher, before the main wash cycle or during the main wash cycle in the interior of a dishwasher become.
  • the metering or the entry of the agent according to the invention into the interior of the dishwasher can be done manually, but preferably the agent is metered into the interior of the dishwasher by means of the metering chamber of the dishwasher.
  • no additional water softener and no additional rinse aid is dosed into the interior of the dishwasher.
  • a kit for a dishwasher comprising a) a machine dishwashing detergent according to the invention; (b) instructions instructing the consumer to use the automatic dishwashing detergent without the addition of a rinse aid and / or a softening salt are another subject of this application.
  • the dishwasher detergents according to the invention exhibit their advantageous cleaning and drying properties, in particular also in low-temperature cleaning processes.
  • Preferred dishwashing method using the inventive agent are therefore characterized in that the dishwashing process are carried out at a liquor temperature below 6O 0 C, preferably below 5O 0 C.
  • agents according to the invention are distinguished by an improved drying performance compared to conventional automatic dishwasher detergents.
  • Another object of the present application is therefore the use of a machine dishwashing detergent according to the invention for improving the drying in automatic dishwashing.
  • a machine load of crockery comprising porcelain, glass, plastic and stainless steel, after adding a defined amount of dirt in a dishwasher (Bosch SGS 57M82; 50 ° normal without intensive drying) with 20 g of the automatic dishwashing detergent listed in the table below with a water hardness of 21 Rinsed ° dH.
  • the dosage of the dishwashing agent was carried out in the main rinse of the dishwashing process.
  • R is -CH (OH) CH 2 -O (CH 2 CH 2 O) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R, in which
  • R, R 1 and R 2 independently represent an alkyl radical or alkenyl radical having 6 to 22 carbon atoms
  • the drying index was determined 30 minutes after the end of the dishwashing process with the door of the dishwasher closed during these 30 minutes.
  • the maximum value for best drying is 0, for worst drying 6.0.

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Abstract

L'invention concerne des détergents pour lave-vaisselle, comprenant : un ou plusieurs adjuvants de détergence, une ou plusieurs enzymes, et a) un agent tensio-actif non ionique A, de formule générale R1O(AlkO)xM(OAIk)yOR2, dans laquelle - R1 et R2 désignent, indépendamment l'un de l'autre, un reste alkyle ramifié ou non ramifié, saturé ou insaturé, éventuellement hydroxylé, de 4 à 22 atomes de carbone; - Alk désigne un reste alkyle ramifié ou non ramifié, de 2 à 4 atomes de carbone; - x et y désignent, indépendamment l'un de l'autre, des valeurs comprises entre 1 et 70; et - M désigne un reste alkyle appartenant au groupe CH2, CHR3, CR3R4, CH2CHR3 et CHR3CHR4, où R3 et R4 désignent, indépendamment l'un de l'autre, un reste alkyle ramifié ou non ramifié, saturé ou insaturé, de 1 à 18 atomes de carbone; b) un agent tensio-actif non ionique B, qui est différent de l'agent tensio-actif non ionique A; c) un copolymère anionique C. Ces détergents selon l'invention se caractérisent par des performances améliorées au séchage et au rinçage.
EP09764241.7A 2008-12-05 2009-12-01 Détergents pour lave-vaisselle Active EP2358853B1 (fr)

Priority Applications (1)

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PL09764241T PL2358853T3 (pl) 2008-12-05 2009-12-01 Środek do maszynowego zmywania naczyń

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DE102008060471A DE102008060471A1 (de) 2008-12-05 2008-12-05 Maschinelles Geschirrspülmittel
PCT/EP2009/066102 WO2010063690A1 (fr) 2008-12-05 2009-12-01 Détergents pour lave-vaisselle

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EP2358853A1 true EP2358853A1 (fr) 2011-08-24
EP2358853B1 EP2358853B1 (fr) 2017-02-08

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PL (1) PL2358853T3 (fr)
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PL2358853T3 (pl) 2017-08-31
EP2358853B1 (fr) 2017-02-08
US8349784B2 (en) 2013-01-08
ES2622984T3 (es) 2017-07-10
US20110232692A1 (en) 2011-09-29
DE102008060471A1 (de) 2010-06-10

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