EP4025109A1 - Reinigungsroboter umfassend ein reinigungstuch und ein reinigungsmittel - Google Patents
Reinigungsroboter umfassend ein reinigungstuch und ein reinigungsmittelInfo
- Publication number
- EP4025109A1 EP4025109A1 EP20767747.7A EP20767747A EP4025109A1 EP 4025109 A1 EP4025109 A1 EP 4025109A1 EP 20767747 A EP20767747 A EP 20767747A EP 4025109 A1 EP4025109 A1 EP 4025109A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- acid
- cleaning agent
- sodium
- agent
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/28—Floor-scrubbing machines, motor-driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/24—Floor-sweeping machines, motor-driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/408—Means for supplying cleaning or surface treating agents
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/408—Means for supplying cleaning or surface treating agents
- A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
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- 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
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
- C11D17/049—Cleaning or scouring pads; Wipes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
-
- 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
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
Definitions
- the present invention relates to a cleaning robot comprising a cleaning cloth and a cleaning agent and the use of a concentrated cleaning agent in such a cleaning robot.
- Cleaning robots for wet wiping are known from the prior art, comprising a cleaning cloth and a cleaning agent, the cleaning robot being designed to guide the cleaning cloth over a hard surface.
- the cleaning robot being designed to guide the cleaning cloth over a hard surface.
- hard surfaces can be cleaned comfortably without the consumer having to guide the tablecloth himself, as is the case with conventional manual surface cleaning.
- Such cleaning robots allow a comfortable and thorough cleaning of hard surfaces.
- the use of a detergent is required to enable thorough cleaning of hard surfaces.
- the use of at least one surfactant can effectively remove dirt from the hard surfaces.
- the object of the present invention was therefore to provide a cleaning robot comprising a cleaning agent which enables improved cleaning performance.
- a cleaning robot comprising a cleaning cloth and a cleaning agent, the cleaning robot being designed to guide the cleaning cloth over a hard surface, characterized in that the cleaning agent with dynamic measurement at 23 ° C with a surface age of 0.3 Seconds has a surface tension of at most 40 mN / cm, preferably at most 38 mN / cm and particularly preferably at most 35 mN / cm.
- Surfactants lower the surface tension of aqueous compositions and thus enable effective surface cleaning.
- the lowering of the surface tension is achieved by the addition of the surfactants to the surface. This is a dynamic process so that the equilibrium value of the surface tension does not change after film formation immediately, but only after a certain time. It is observed here that the surface tension, from an initially relatively high value, approaches the surface tension equilibrium value as time progresses. In other words, surface tension values that are sufficiently low for good cleaning are only established after a certain period of time.
- the detergent is applied to the hard surface.
- the cleaning agent is either applied directly to the surface or a cleaning cloth is soaked in the cleaning agent.
- a certain time passes before the actual cleaning process takes place.
- the surfactants have sufficient time to accumulate on the surface of the cleaning agent film that has formed and thus to reduce the surface tension.
- the cleaning agent usually has the equilibrium value of the surface tension.
- the cleaning agent In the case of automatic surface cleaning by means of a cleaning robot, the cleaning agent is applied to the hard surface, the wiping process taking place essentially at the same time as the cleaning agent is applied.
- the surfactants In contrast to manual cleaning, the surfactants only have little time to accumulate on the surface of the cleaning agent film that has formed and thus to reduce the surface tension. In other words, during the automatic cleaning process, the cleaning agent generally does not have the equilibrium value of the surface tension.
- a cleaning agent In order to enable good cleaning, a cleaning agent must be used in which a sufficiently strong reduction in surface tension has already taken place shortly after film formation.
- the dynamic surface tension is determined by means of bubble pressure tensiometry. These methods are known to the person skilled in the art. An air bubble is generated in the liquid to be examined for a certain period of time. The measured value that occurs during this period corresponds to the surface tension at a certain surface age. If you change the lifetime of the air bubble, i.e. the surface age, the surface tension of the cleaning liquid can be determined depending on the surface age. The measurements take place under standard conditions, in particular at a temperature of 23 ° C.
- the cleaning robot is designed to guide the cleaning cloth over the hard surface at a speed of at least 5 cm / s, preferably at least 10 cm / s, more preferably at least 20 cm / s.
- a cleaning agent which, when measured dynamically at 23 ° C., has a surface age of 0.3 seconds Has a surface tension of at most 40 mN / cm, preferably at most 38 mN / cm and particularly preferably at most 35 mN / cm.
- the cleaning agent usually does not have its equilibrium value. A cleaning agent must therefore be used in which a sufficiently strong reduction in surface tension has already taken place shortly after film formation.
- the cleaning robot is described, the cleaning robot being designed to guide the cleaning cloth over the hard surface at a speed of at least 5 cm / s, preferably at least 10 cm / s, more preferably at least 20 cm / s.
- the decrease in the surface tension of the cleaning agent in dynamic measurement at 23 ° C. being at least 2 mN / cm, preferably 5 mN / cm, within a surface life of 0.3 seconds.
- the cleaning robot is described, the cleaning robot being designed to convey the cleaning agent out of a cleaning agent tank and to apply it to the cleaning cloth.
- the use of a concentrated cleaning agent in a cleaning robot is described, characterized in that the cleaning agent is diluted with water in the robot and after at least ten-fold dilution, preferably about 14-fold dilution in the cleaning robot with dynamic measurement at 23 ° C with a surface age of 0.3 seconds has a surface tension of at most 40 mN / cm, preferably at most 38 mN / cm and particularly preferably at most 35 mN / cm.
- a tenfold dilution is understood to mean that there are 10 parts of water for one part of concentrated cleaning agent.
- the use of the concentrated cleaning agent is described, the cleaning robot being designed to guide the cleaning cloth over the hard surface at a speed of at least 5 cm / s, preferably at least 10 cm / s, more preferably at least 20 cm / s .
- fatty acids or fatty alcohols or their derivatives - unless otherwise stated - represent branched or unbranched carboxylic acids or alcohols or their derivatives with preferably 6 to 22 carbon atoms.
- the former are preferred for ecological reasons, in particular because of their vegetable base, rather than based on renewable raw materials, without, however, restricting the teaching according to the invention to them.
- the oxo alcohols or derivatives thereof obtainable, for example, by RoELEN's oxo synthesis, can also be used accordingly.
- alkaline earth metals are mentioned in the following as counterions for monovalent anions, this means that the alkaline earth metal is of course only present in half the amount of substance - sufficient to balance the charge - as the anion.
- the International Cosmetic Ingredient Dictionary and Handbook assigns the ingredients to one or more chemical classes, for example Polymerie Ethers, and a or several functions, e.g. surfactants - Cleansing Agents, to which it in turn explains in more detail and to which reference may also be made below.
- Nonionic surfactants in the context of the invention can be alkoxylates such as polyglycol ethers, fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, end-capped polyglycol ethers, mixed ethers and hydroxy mixed ethers and fatty acid polyglycol esters. Ethylene oxide / propylene oxide block polymers, fatty acid alkanolamides and fatty acid polyglycol ethers can also be used.
- Another important class of nonionic surfactants which can be used according to the invention are the polyol surfactants and, in this case, especially the glycoturfactants, such as alkyl polyglycosides and fatty acid glucamides.
- the alkyl polyglycosides are particularly preferred, in particular the alkyl polyglucosides, the alcohol being particularly preferably a long-chain fatty alcohol or a mixture of long-chain fatty alcohols with branched or unbranched Cs to Cis alkyl chains and the degree of oligomerization (DP) of the sugars between 1 and 10, preferably 1 to 6, in particular 1.1 to 3, extremely preferably 1.1 to 1.7, for example Cs-io-alkyl-1.5-glucoside (DP of 1.5).
- the alcohol being particularly preferably a long-chain fatty alcohol or a mixture of long-chain fatty alcohols with branched or unbranched Cs to Cis alkyl chains and the degree of oligomerization (DP) of the sugars between 1 and 10, preferably 1 to 6, in particular 1.1 to 3, extremely preferably 1.1 to 1.7, for example Cs-io-alkyl-1.5-glucoside (DP of 1.5).
- fatty alcohol alkoxylates are preferred, in particular unbranched or branched, saturated or unsaturated Cs-22 alcohols alkoxylated with ethylene oxide (EO) and / or propylene oxide (PO) with a degree of alkoxylation of up to 30, preferably ethoxylated Ci2-22- Fatty alcohols with a degree of ethoxylation of less than 30, preferably 12 to 28, in particular 20 to 28, particularly preferably 25, for example Ci6-18 fatty alcohol ethoxylates with 25 EO.
- EO ethylene oxide
- PO propylene oxide
- the cleaning agent according to the invention can contain at least one anionic surfactant.
- anionic surfactants are fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates, alkylbenzene sulfonates, olefin sulfonates, alkane sulfonates, ether sulfonates, n-alkyl ether sulfonates, ester sulfonates and lignin sulfonates.
- the linear alkylbenzenesulfonates, fatty alcohol sulfates and / or fatty alcohol ether sulfates, in particular the fatty alcohol sulfates are preferred.
- Fatty alcohol sulfates are products of sulfation reactions on corresponding alcohols
- fatty alcohol ether sulfates are products of sulfation reactions on alkoxylated alcohols.
- alkoxylated alcohols to mean the reaction products of Alkylene oxide, preferably ethylene oxide, with alcohols, for the purposes of the present invention preferably with longer-chain alcohols.
- a complex mixture of addition products with different degrees of ethoxylation is formed from n moles of ethylene oxide and one mole of alcohol, depending on the reaction conditions.
- Another embodiment of the alkoxylation consists in using mixtures of the alkylene oxides, preferably the mixture of ethylene oxide and propylene oxide.
- Preferred fatty alcohol ether sulfates are the sulfates of lower ethoxylated fatty alcohols with 1 to 4 ethylene oxide units (EO), in particular 1 to 2 EO, for example 1.3 EO.
- alkylbenzenesulfonates preference is given in particular to those with about 12 carbon atoms in the alkyl part, for example linear sodium Cio-18-alkylbenzenesulfonate.
- Preferred olefin sulfonates have a carbon chain length of 14-16.
- the anionic surfactants are preferably used as sodium salts, but can also be present as other alkali or alkaline earth metal salts, for example magnesium salts, as well as in the form of ammonium or mono-, di-, tri- or tetraalkylammonium salts, in the case of the sulfonates also in the form their corresponding acid, for example dodecylbenzenesulfonic acid.
- the agent according to the invention can also contain cationic surfactants and / or amphoteric surfactants.
- Suitable amphoteric surfactants are, for example, betaines of the formula (R iN ) (R iv ) (R v ) N + CH2COO-, in which R iN is an alkyl radical optionally interrupted by heteroatoms or heteroatom groups and having 8 to 25, preferably 10 to 21 carbon atoms and R iv and R v denote identical or different alkyl radicals with 1 to 3 carbon atoms, in particular Cio-Cis-alkyl-dimethylcarboxymethylbetaine and Cn-Ci7-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-chain and two short-chain , Alkyl radicals and X- stand for an anion, in particular a halide ion, for example didecyldimethylammonium chloride, alkylbenzyldidecylammonium 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 be designed with an antimicrobial effect or its antimicrobial effect, which may already be present due to other ingredients, can be improved.
- the total surfactant content of such a, preferably aqueous, cleaning agent formulation is preferably 0.1 to 40% by weight and particularly preferably 0.1 to 12.0% by weight, based on the formulation as a whole.
- Further ingredients that are commonly contained in hard surface cleaning agents can also be included in the cleaning agent. This group of further possible ingredients includes, but is not limited to, acids, bases, organic solvents, salts, complexing agents, fillers, builders, bleaching agents and mixtures thereof.
- the cleaning agent according to the invention can furthermore contain one or more water-soluble salts in a total amount of 0.1 to 75% by weight. These can be inorganic and / or organic salts.
- Inorganic salts which can be used according to the invention are preferably selected from the group comprising colorless water-soluble halides, sulfates, sulfites, carbonates, hydrogen carbonates, nitrates, nitrites, phosphates and / or oxides of alkali metals, alkaline earth metals, aluminum and / or transition metals; ammonium salts can also be used.
- Halides and sulfates of the alkali metals are particularly preferred;
- the at least one inorganic salt is therefore preferably selected from the group comprising sodium chloride, potassium chloride, sodium sulfate, potassium sulfate and mixtures thereof.
- sodium chloride and / or sodium sulfate is used.
- the organic salts which can be used according to the invention are, in particular, colorless, water-soluble alkali metal, alkaline earth metal, ammonium, aluminum and / or transition metal salts of carboxylic acids.
- the salts are preferably selected from the group comprising formate, acetate, propionate, citrate, malate, tartrate, succinate, malonate, oxalate, lactate and mixtures thereof.
- the cleaning agent according to the invention is an aqueous cleaning agent for hard surfaces.
- it can contain one or more other water-soluble organic solvents, usually in an amount of 0 to 15% by weight, preferably 1 to 12% by weight, in particular 3 to 8% by weight.
- the solvents are used as required, in particular as hydrotropes and viscosity regulators. They have a solubilizing effect, especially for surfactants and electrolytes, as well as perfume and dyes, and thus contribute to their incorporation, prevent the formation of liquid-crystalline phases and contribute to the formation of clear products.
- the viscosity of the agent according to the invention decreases as the amount of solvent increases. Finally, as the amount of solvent increases, the cold cloudiness and clear point of the agent according to the invention decrease.
- Suitable solvents are, for example, saturated or unsaturated, preferably saturated, branched or unbranched C1-20 hydrocarbons, preferably C2-15 hydrocarbons, with at least one hydroxyl group and optionally one or more ether functions COC, ie oxygen atoms interrupting the carbon atom chain.
- Preferred solvents are the C2-6 alkylene glycols - optionally etherified on one side with a C1-6 alkanol - and poly-C2-3-alkylene glycol ethers with an average of 1 to 9 identical or different, preferably identical, alkylene glycol groups per molecule as well as the C1-6 - Alcohols, preferably ethanol, n-propanol or iso-propanol.
- Exemplary solvents are the following compounds named according to INCI: buteth-3, butoxy diglycol, butoxyethanol, butoxyisopropanol, butoxy propanol, n-butyl alcohol, t-butyl alcohol, butylene glycol, butyloctanol, diethylene glycol, dimethoxy diglycol, dimethyl ether, dipropylene glycol, ethoxy diglycol, Ethoxyethanol, ethyl hexanediol, glycol, hexanediol, 1, 2,6- hexanetriol, hexyl alcohol, hexylene glycol, isobutoxypropanol, isopentyldiol, isopropyl alcohol (isopropanol), 3-methoxybutanol, methoxydiglycol, methoxyethanol, methoxyisopropanol, methoxymethylbutanol, methoxymethylbutanol 10, Methylal
- Longer-chain polyalkylene glycols in particular polypropylene glycols, are also preferred.
- the solvent is preferably selected from the group comprising ethanol, propanol, isopropanol, ethylene glycol, butyl glycol, propylene glycol, polypropylene glycols and alcohol amines, in particular monoethanolamine and mixtures thereof
- Extremely preferred solvents are the C2 and C3 alcohols, ethanol, n-propanol and / or iso-propanol and the polyalkylene glycols, especially polypropylene glycols, especially PPG-400 and alcohol amines, especially monoethanolamine and mixtures thereof.
- a mixture of isopropanol and monoethanolamine is very particularly preferably used as the organic solvent.
- alkanolamines for example, can also be used as solubilizers, in particular for perfumes and dyes.
- the cleaning agent according to the invention can furthermore contain all of the builders customarily used in detergents and cleaning agents, in particular silicates, carbonates, organic cobuilders and also the phosphates.
- the silicates include, on the one hand, crystalline, layered sodium silicates of the general formula NaMSi x C> 2x + i yFLO, where M is sodium or hydrogen, x is a number from 1, 9 to 4 and y is a number from 0 to 20 and preferred values for x are 2, 3 or 4.
- amorphous sodium silicates with a module Na2 ⁇ D: S1O2 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 can also be used water glass is also to be expected.
- the term “amorphous” is also understood to mean “X-ray amorphous”.
- zeolites can be used as builder substances, preferably zeolite A and / or P.
- zeolite X and mixtures of A, X and / or P are also suitable.
- Both the monoalkali metal salts and the dialkali metal salts of carbonic acid and also sesquicarbonates can be contained in the agents as carbonates.
- Preferred alkali metal ions are sodium and / or potassium ions, so soda (sodium carbonate) and potash (potassium carbonate) are particularly preferred.
- alkali metal phosphates can also be used as builder substances, provided that such use should not be avoided for ecological reasons.
- the alkali metal phosphates with particular preference for pentasodium or pentapotassium triphosphate (sodium or potassium tripolyphosphate), are of the greatest importance in the detergent and cleaning agent industry.
- Alkali metal phosphates is the summary name for the alkali metal (especially sodium and potassium) salts of the various phosphoric acids, in which one can distinguish between metaphosphoric acids (HRq3) h and orthophosphoric acid H3PO4 in addition to higher molecular weight representatives.
- Suitable phosphates are sodium dihydrogen phosphate, NaH 2 P0 4 , disodium hydrogen phosphate (secondary sodium phosphate), Na 2 HP0 4 , trisodium phosphate, tertiary sodium phosphate, Na3P0 4 , tetrasodium diphosphate (sodium pyrophosphate), Na 4 P 2 07, as well as the by condensation of NaH 2 P0 4 or the KH2PO4 arise with higher molecular weight Sodium and potassium phosphates, in which one can distinguish cyclic representatives, the sodium or potassium metaphosphates and chain-like types, the sodium or potassium polyphosphates.
- polycarboxylates / polycarboxylic acids polymeric polycarboxylates, aspartic acid, polyacetals, dextrins, further organic cobuilders (see below) and phosphonates can be contained as organic co-builders.
- Organic builder substances which can be used are, for example, the polycarboxylic acids which can be used in the form of their 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, aminocarboxylic acids, nitrilotriacetic acid (NTA), provided that such use is not objectionable for ecological reasons, as well as mixtures of these.
- Preferred salts are the salts of polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, methylglycinediacetic acid, sugar acids and mixtures of these.
- the acids themselves can also be used.
- Polymeric polycarboxylates are also suitable as builders, for example the alkali metal salts of polyacrylic acid or polymethacrylic acid, for example those with a relative molecular weight of 500 to 70,000 g / mol.
- the molar masses given for polymeric polycarboxylates are weight-average molar masses M of the respective acid form, which were basically determined by means of gel permeation chromatography (GPC) using a UV detector. The measurement was carried out against an external polyacrylic acid standard which, due to its structural similarity to the polymers under investigation, provides realistic molecular weight values.
- Copolymers of polycarboxylates in particular those of acrylic acid with methacrylic acid and acrylic acid or methacrylic acid with maleic acid, are also suitable.
- 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 particularly suitable.
- Their relative molecular weight, based on free acids, is generally from 2000 to 100000 g / mol.
- the polymers can also contain allylsulfonic acids, such as, for example, allyloxybenzenesulfonic acid and methallylsulfonic acid, as monomers.
- allylsulfonic acids such as, for example, allyloxybenzenesulfonic acid and methallylsulfonic acid
- Biodegradable polymers composed of more than two different monomer units are also particularly preferred, for example those which contain salts of acrylic acid and maleic acid and vinyl alcohol or vinyl alcohol derivatives as monomers or salts of acrylic acid and 2-alkylallylsulphonic acid and sugar derivatives as monomers .
- copolymers preferably have acrolein and acrylic acid / acrylic acid salts or acrolein and vinyl acetate as monomers.
- polymeric aminodicarboxylic acids their salts or their precursors, in particular polyaspartic acids or their salts and derivatives, as well as polyacetals, which can be obtained by reacting dialdehydes with polyol carboxylic acids which have 5 to 7 carbon atoms and at least 3 hydroxyl groups, and dextrins, for example oligomers or polymers of carbohydrates, which can be obtained by partial hydrolysis of starches.
- polymeric aminodicarboxylic acids their salts or their precursors
- polyaspartic acids or their salts and derivatives as well as polyacetals
- dextrins for example oligomers or polymers of carbohydrates, which can be obtained by partial hydrolysis of starches.
- hydrolysis products with average molar masses in the range from 400 to 500,000 g / mol.
- Oxydisuccinates and other derivatives of disuccinates are more suitable co-builders, preferably in the form of its sodium or magnesium salts, further iminodisuccinate (IDS) and derivatives thereof, for example Hydroxyiminodisuccinate (HDIS) and also acetylated hydroxycarboxylic acids or their salts, which can optionally also be in lactone form and which contain at least 4 carbon atoms and at least one hydroxyl group and a maximum of two acid groups.
- IDS iminodisuccinate
- HDIS Hydroxyiminodisuccinate
- HDIS Hydroxyiminodisuccinate
- acetylated hydroxycarboxylic acids or their salts which can optionally also be in lactone form and which contain at least 4 carbon atoms and at least one hydroxyl group and a maximum of two acid groups.
- phosphonates are in particular hydroxyalkane or aminoalkane phosphonates.
- hydroxyalkanephosphonates 1-hydroxyethane-1,1-diphosphonate (HEDP) is of particular importance as a cobuilder. It is preferably used as the sodium salt, the disodium salt reacting neutrally and the tetrasodium salt reacting alkaline (pH 9).
- Ethylenediamine tetramethylene phosphonate (EDTMP), diethylenetriamine pentamethylene phosphonate (DTPMP) and their higher homologues are preferred as aminoalkanephosphonates.
- HEDP hexasodium salt of EDTMP or as the hepta- and octasodium salt of DTPMP.
- HEDP hexasodium salt of EDTMP
- HEDP hepta- and octasodium salt of DTPMP.
- the aminoalkanephosphonates also have a pronounced ability to bind heavy metals. Accordingly, especially if the agents also contain bleach, it can be preferred to use aminoalkanephosphonates, in particular DTPMP, or mixtures of the phosphonates mentioned.
- all compounds which are able to form complexes with alkaline earth metal ions can be contained in the particulate agents as co-builders.
- One or more acids and / or their salts can be included to increase the cleaning performance against lime.
- the acids are preferably made from renewable raw materials.
- Organic acids such as formic acid, acetic acid, citric acid, glycolic acid, lactic acid, succinic acid, adipic acid, malic acid, tartaric acid and gluconic acid and mixtures thereof are therefore particularly suitable as acids.
- the inorganic acids hydrochloric acid, sulfuric acid, phosphoric acid and nitric acid or amidosulfonic acid or mixtures thereof can also be used.
- the acids and / or their salts are particularly preferably selected from the group comprising citric acid, lactic acid, formic acid, their salts and mixtures thereof. They are preferably used in amounts of 0.01 to 10% by weight, particularly preferably 0.2 to 5% by weight.
- the detergent blocks according to the invention can also contain alkalis.
- the bases used in the agents according to the invention are preferably those from the group of alkali and alkaline earth metal hydroxides and carbonates, in particular sodium carbonate or sodium hydroxide.
- ammonia and / or alkanolamines with up to 9 carbon atoms in the molecule can also be used, preferably the ethanolamines, in particular monoethanolamine.
- Complexing agents also called sequestering agents, are ingredients that are able to complex and inactivate metal ions in order to prevent their adverse effects on the stability or appearance of the cleaning agents according to the invention, for example cloudiness.
- it is important to complex the calcium and magnesium ions of water hardness, which are incompatible with numerous ingredients.
- the complexation of the ions of heavy metals such as iron or copper delays the oxidative decomposition of the finished product.
- the complexing agents support the cleaning effect.
- the following complexing agents are suitable, for example: Aminotrimethylene Phosphonic Acid, Beta-Alanine Diacetic Acid, Calcium Disodium EDTA, Citric Acid, Cyclodextrin, Cyclohexanediamine Tetraacetic Acid, Diammonium Citrate, Diammonium EDTA, Diethylenetriamine Pentamethylene Phosphonic Acycloon, Dipotassium Diphosphane, Pentamethylene Phosphonic EDacycloid, Dipotassium Diphosphate , Disodium EDTA, Disodium Pyrophosphate, EDTA, Etidronic Acid, Galactaric Acid, Gluconic Acid, Glucuronic Acid, HEDTA, Hydroxypropyl Cyclodextrin, Methyl Cyclodextrin, Pentapotassium Triphosphate, Pentasodium Aminotrimethylene, Pentasodium Phosphonate Ethylene Phosphonate, Pentasodium Ethy
- bleaches can be added to the cleaning product.
- Suitable bleaching agents include peroxides, peracids and / or perborates, sodium percarbonate or phthalimidoperoxyhexanoic acid is particularly preferred.
- Chlorine-containing bleaches such as trichloroisocyanuric acid or sodium dichloroisocyanurate, on the other hand, are less suitable for acidic cleaning agents due to the release of toxic chlorine gas vapors, but can be used in alkaline cleaning agents.
- a bleach activator may also be required under certain circumstances.
- Bleach activators which can be used are compounds which, under perhydrolysis conditions, give aliphatic peroxocarboxylic acids having preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and / or optionally substituted perbenzoic acid.
- polyacylated alkylenediamines in particular tetraacetylethylenediamine (TAED), acylated triazine derivatives, in particular 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), are acylated Glycolurils, especially tetraacetylglycoluril (TAGU), N-acylimides, especially N-nonanoylsuccinimide (NOSI), acylated phenol sulfonates, especially n-nonanoyl or isononanoyloxybenzenesulfonate (n- or iso-NOBS) are particularly preferred.
- TAED tetraacetylethylenediamine
- DADHT 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine
- TAGU tetraacetylgly
- Combinations of conventional bleach activators can also be used. These bleach activators are preferably used in amounts of up to 10% by weight, in particular 0.1% by weight to 8% by weight, especially 2 to 8% by weight and particularly preferably 2 to 6% by weight, each based on the total weight of the bleach activator-containing agents used.
- the agent according to the invention can contain one or more other auxiliary substances and additives which are customary in cleaning agents for hard surfaces in particular.
- these include, for example, organic adjusting agents (in particular sugar, sugar alcohols, glycerine, glycols and polymers of the same), hydrophobicity mediators (such as e.g. Paraffin), UV stabilizers, perfume oils, antimicrobial agents, pearlescent agents (INCI opacifying agents, for example glycol distearate, for example Cutina ® AGS from BASF, or mixtures comprising, for example, the Euperlane ® from BASF), more opacifiers, colorants.
- organic adjusting agents in particular sugar, sugar alcohols, glycerine, glycols and polymers of the same
- hydrophobicity mediators such as e.g. Paraffin
- UV stabilizers such as e.g. Paraffin
- perfume oils such as e.g. Paraffin
- antimicrobial agents such as e.g. Paraffin
- Corrosion inhibitors for example the technical 2-bromo-2-nitropropane-1,3-diol (CAS 52-51-7), also known as Bronopol, which, for example, as Myacide ® BT or Boots Bronopol BT from the company Boots is commercially available, or mixtures containing bronopol such as Preventol ® (ex Lanxess) or Parmetol ® (ex Schülke & Mayr)), disinfectants, enzymes, pH adjusters, fragrances and additives that improve or care for the skin (e.g.
- dermatologically active substances such as vitamin A, vitamin B2, vitamin B12, vitamin C, vitamin E, D-panthenol, sericerin, collagen partial hydrolyzate, various vegetable protein partial hydrolyzates, protein hydrolyzate-fatty acid condensates nsate, liposomes, cholesterol, vegetable and animal oils such as lecithin, soybean oil, etc., plant extracts such as aloe vera, azulene, witch hazel extracts, algae extracts, etc., allantoin, AHA complexes, glycerine, urea, quaternized hydroxyethyl cellulose), additives for Improvement of the drainage and drying behavior or for stabilization.
- auxiliaries and additives are contained, in particular, in amounts of usually not more than 5% by weight.
- the product according to the invention can contain one or more fragrances, preferably in an amount of 0.01 to 10% by weight, in particular 0.05 to 8% by weight, particularly preferably 0.1 to 5% by weight. It can contain d-limonene as a perfume component.
- the cleaning agent block according to the invention contains a perfume made from essential oils (also referred to as essential oils). Pine, citrus, jasmine, patchouly, rose or ylang-ylang oil, for example, can be used as such for the purposes of this invention.
- fragrances usually used in detergents and cleaning agents are also suitable for use in the cleaning agent block according to the invention, for example further essential oils, esters, alcohols, aldehydes or terpenes.
- the cleaning agent therefore contains one or more antimicrobial active ingredients, preferably in an amount of 0.01 to 1% by weight, preferably 0.02 to 0.8% by weight, in particular 0.05 to 0.5% by weight, particularly preferably 0.1 to 0.3% by weight, extremely preferably 0.2% by weight.
- disinfection, sanitation, antimicrobial effect and antimicrobial active ingredient have the meaning customary in the art within the scope of the teaching according to the invention.
- disinfection in the In the narrower sense of medical practice means the killing of - theoretically all - infectious germs
- sanitation means the elimination of all germs as far as possible, including those saprophytic germs that are normally harmless to humans.
- the extent of the disinfection or sanitation is dependent on the antimicrobial effect of the agent used, which decreases with decreasing content of antimicrobial active ingredient or increasing dilution of the agent for use.
- antimicrobial active ingredients from the groups of alcohols, aldehydes, antimicrobial acids or their salts, carboxylic acid esters, acid amides, phenols, phenol derivatives, diphenyls, diphenylalkanes, urea derivatives, oxygen, nitrogen acetals and formals, benzamidines, isothiazoles and their are suitable Derivatives such as isothiazolines and isothiazolinones, phthalimide derivatives, pyridine derivatives, antimicrobial surface-active compounds, guanidines, antimicrobial amphoteric compounds, quinolines, 1,2-dibromo-2,4-dicyanobutane, iodo-2-propynyl-butyl-carbamate, iodine, iodophores, active chlorine cleavage Compounds and peroxides.
- Preferred antimicrobial agents are preferably selected from the group comprising ethanol, n-propanol, i-propanol, 1,3-butanediol, phenoxyethanol, 1,2-propylene glycol, glycerol, undecylenic acid, citric acid, lactic acid, benzoic acid, salicylic acid, thymol, 2- Benzyl-4-chlorophenol, 2,2'-methylene-bis- (6-bromo-4-chlorophenol), 2,4,4'-trichloro-2'-hydroxydiphenyl ether, N- (4-chlorophenyl) -N- ( 3,4-dichlorophenyl) urea, N, N '- (1, 10-decanediyldi-1-pyridinyl-4-ylidene) -bis- (1-octanamine) -dihydrochloride, N, N'-bis- (4- Chlorophenyl) -3,12-di
- Preferred antimicrobial surface-active quaternary compounds contain an ammonium, sulfonium, phosphonium, iodonium or arsonium group. Furthermore, antimicrobially effective essential oils can be used, which at the same time ensure that the cleaning product is scented.
- Particularly preferred antimicrobial active ingredients are, however, selected from the group comprising salicylic acid, quaternary surfactants, in particular benzalkonium chloride, peroxo compounds, in particular hydrogen peroxide, alkali metal hypochlorite, sodium dichloroisocyanurate and mixtures thereof.
- Preservatives can also be contained in cleaning agent products according to the invention.
- the substances mentioned for the antimicrobial active ingredients can essentially be used as such.
- the cleaning agent product according to the invention can contain one or more dyes (INCI colorants) as further ingredients.
- dyes ICI colorants
- Both water-soluble and oil-soluble dyes can be used as dyes, the compatibility with others on the one hand Ingredients, such as bleaching agents, must be taken into account and, on the other hand, the dye used should not have a substantive effect on the metal and ceramics even after prolonged exposure.
- the dyes are preferably present in an amount of 0.0001 to 0.1% by weight, in particular 0.0005 to 0.05% by weight, particularly preferably 0.001 to 0.01% by weight.
- Suitable corrosion inhibitors are, for example, the following substances named in accordance with INCI: Cyclohexylamine, Diammonium Phosphate, Dilithium Oxalate, Dimethylamino Methylpropanol, Dipotassium Oxalate, Dipotassium Phosphate, Disodium Phosphate, Disodium Pyrophosphate, Disodium Tetrapropenyl Phosphane, Nitromethylsuccinate, Potassium oxyethyl Silicates, Sodium Aluminate, Sodium Hexametaphosphate, Sodium Metasilicate, Sodium Molybdate, Sodium Nitrite, Sodium Oxalate, Sodium Silicate, Stearamidopropyl Dimethicone, Tetrapotassium Pyrophosphate, Tetrasodium Pyrophosphate, Triisopropanolamine.
- rinsing regulators are primarily used to control the consumption of the agent during use so that the intended service life is adhered to.
- Solid long-chain fatty acids such as stearic acid, but also salts of such fatty acids, fatty acid ethanolamides, such as coconut fatty acid monoethanolamide, or solid polyethylene glycols, such as those with molecular weights between 10,000 and 50,000, are preferably suitable as regulators.
- the cleaning product can also contain enzymes, preferably proteases, lipases, amylases, hydrolases and / or cellulases. They can be added to the agent according to the invention in any form established according to the prior art. These include solutions of the enzymes, advantageously as concentrated as possible, low in water and / or mixed with stabilizers. Alternatively, the enzymes can be encapsulated, for example by spray drying or extrusion of the enzyme solution together with a, preferably natural, polymer or in the form of capsules, for example those in which the enzymes are enclosed as in a solidified gel or in those from the core-shell Type in which an enzyme-containing core is covered with a protective layer that is impermeable to water, air and / or chemicals.
- enzymes preferably proteases, lipases, amylases, hydrolases and / or cellulases.
- Additional active ingredients for example stabilizers, emulsifiers, pigments, bleaches or dyes, can also be applied in superimposed layers.
- Such capsules are applied by methods known per se, for example by pouring or rolling granulation or in fluid-bed processes. Such granulates are advantageously low in dust, for example through the application of polymeric film-forming agents, and, owing to the coating, are stable in storage.
- enzyme stabilizers can be present in enzyme-containing cleaning products in order to protect an enzyme contained from damage such as, for example, inactivation, denaturation or disintegration due to physical influences, oxidation or proteolytic cleavage.
- Particularly suitable enzyme stabilizers are: benzamidine hydrochloride, borax, boric acids, boronic acids or their salts or esters, especially derivatives with aromatic groups, for example substituted phenylboronic acids or their salts or esters; Peptide aldehydes (oligopeptides with a reduced C terminus), amino alcohols such as mono-, di-, triethanol- and propanolamine and mixtures thereof, aliphatic carboxylic acids up to C12, such as succinic acid, other dicarboxylic acids or salts of the acids mentioned; end-capped fatty acid amide alkoxylates; lower aliphatic alcohols and especially polyols, for example glycerol, ethylene glycol, propylene glycol or sorbitol; as well as reducing agents and antioxidants such as sodium sulfite and reducing sugars.
- Suitable stabilizers are known from the prior art.
- Combinations of stabilizers are preferably used, for example the combination of polyols, boric acid and / or borax, the combination of boric acid or borate, reducing salts and succinic acid or other dicarboxylic acids or the combination of boric acid or borate with polyols or polyamino compounds and with reducing salts.
- the pH of the agents according to the invention can be adjusted by means of conventional pH regulators, for example citric acid or NaOH. It is preferred here that the agent has a pH in a range from 5 to 11.5, preferably 7 to 11.3.
- the agent according to the invention can also contain one or more buffer substances (INCI buffering agents), usually in amounts of 0.001 to 5% by weight, preferably 0.005 to 3% by weight, in particular 0.01 to 2% by weight, particularly preferably 0.05 to 1% by weight, extremely preferably 0.1 to 0.5% by weight, for example 0.2% by weight.
- buffer substances that are also complexing agents or even chelating agents (chelators, INCI chelating agents).
- Particularly preferred buffer substances are citric acid or the citrates, in particular the sodium and potassium citrates, for example trisodium citrate 2 H2O and tripotassium citrate H 2 O.
- FIG. 1 shows a cleaning robot 1 comprising a cleaning cloth 10 in a view from below.
- the cleaning robot 1 guides the cleaning cloth 10 over a hard surface.
- the cleaning robot 1 is moved over the hard surface by means of wheels 20.
- the cleaning robot 1 moves at a certain speed along the direction indicated by the dashed arrow.
- FIG. 2 shows the cleaning robot 1 including the cleaning cloth 10 in a view from the side.
- the cleaning agent is conveyed out of the cleaning agent tank 30 and first applied to the cleaning cloth 10 and then directly by means of the cleaning cloth 10 to the surface 5 to be cleaned.
- the cleaning agent is thus applied to the hard surface 5 when the robot moves, the wiping process taking place essentially at the same time as the cleaning agent is applied.
- the surfactants only have little time to accumulate on the surface of the cleaning agent film that has formed and thus to reduce the surface tension.
- the cleaning agent generally does not have its equilibrium value.
- a cleaning agent must be used in which a sufficiently strong reduction in surface tension has already taken place shortly after film formation.
- Table 1 The quantities given are to be understood as the active substance in the concentrated composition.
- Table 2 shows the surface tension which was determined for the composition according to Table 1 after diluting 18 ml of concentrated cleaning agent with 250 ml of water (temperature 23 ° C.).
- the cleaning agent listed here as an example shows a surface tension of about 34 mN / cm when measured dynamically at 23 ° C. with a surface age of 0.3 seconds and is thus below the particularly preferred limit value of 35 mN / cm.
- the cleaning agent shown is therefore particularly well suited for use with the cleaning robot according to the invention.
- the cleaning agent shown is therefore particularly well suited for use with the cleaning robot according to the invention.
- the stated composition is only to be understood as an example and not restrictive.
- the person skilled in the art will be able to adjust the surface tension (lowering the surface tension) according to the invention.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019213539.0A DE102019213539A1 (de) | 2019-09-05 | 2019-09-05 | Reinigungsroboter umfassend ein Reinigungstuch und ein Reinigungsmittel |
| PCT/EP2020/074363 WO2021043772A1 (de) | 2019-09-05 | 2020-09-01 | Reinigungsroboter umfassend ein reinigungstuch und ein reinigungsmittel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4025109A1 true EP4025109A1 (de) | 2022-07-13 |
| EP4025109B1 EP4025109B1 (de) | 2023-06-07 |
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ID=72381059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20767747.7A Active EP4025109B1 (de) | 2019-09-05 | 2020-09-01 | Reinigungsroboter umfassend ein reinigungstuch und ein reinigungsmittel |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12089792B2 (de) |
| EP (1) | EP4025109B1 (de) |
| KR (1) | KR20220057541A (de) |
| CN (1) | CN114340462B (de) |
| DE (1) | DE102019213539A1 (de) |
| WO (1) | WO2021043772A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2023425744A1 (en) * | 2023-01-20 | 2025-07-31 | Sharkninja Operating Llc | Extraction cleaner |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY137154A (en) * | 2002-01-21 | 2008-12-31 | Basf Ag | Alkylglycol alkoxylates or alkyldiglycol alkoxylates, mixtures thereof with tensides and their use |
| US7465697B1 (en) * | 2006-11-02 | 2008-12-16 | Ohsoclean, Inc. | Essential oils based cleaning and disinfecting compositions |
| EP2574265B1 (de) | 2007-05-09 | 2015-10-14 | iRobot Corporation | Kompakter Roboter mit autonomer Reichweite |
| US7867758B2 (en) * | 2008-04-01 | 2011-01-11 | The Board Of Trustees Of The Leland Stanford Junior University | Bioluminogenic assay system for measuring beta-lactamase activity |
| US8898844B1 (en) * | 2011-07-08 | 2014-12-02 | Irobot Corporation | Mopping assembly for a mobile robot |
| CN103796564A (zh) * | 2011-09-13 | 2014-05-14 | 雷克特本克斯尔荷兰有限公司 | 设备和利用该设备的方法 |
| ES2899898T3 (es) * | 2012-12-13 | 2022-03-15 | Freudenberg Carl Kg | Aparato de limpieza con un contenedor de líquido |
| DE102013108905A1 (de) * | 2013-08-19 | 2015-02-19 | Vorwerk & Co. Interholding Gmbh | Zur Feuchtreinigung ausgebildetes Reinigungsgerät |
| DE102017118226A1 (de) * | 2017-08-10 | 2019-02-14 | Vorwerk & Co. Interholding Gmbh | Bodenbearbeitungsgerät mit mehreren Tanks zur Bevorratung von Flüssigkeit |
| DE102017126414A1 (de) * | 2017-11-10 | 2019-05-16 | Vorwerk & Co. Interholding Gmbh | Feuchtreinigungseinrichtung zur Reinigung einer Fläche |
| DE202017107847U1 (de) * | 2017-12-21 | 2018-01-15 | Ulrich Pohlmann | Reinigungstuch/ -pad |
| KR102045003B1 (ko) * | 2018-01-25 | 2019-11-14 | 엘지전자 주식회사 | 로봇청소기의 제어방법 |
| CN108641822A (zh) * | 2018-06-04 | 2018-10-12 | 武汉柏康科技股份有限公司 | 一种无磷低碳酸性cip清洁剂 |
-
2019
- 2019-09-05 DE DE102019213539.0A patent/DE102019213539A1/de not_active Withdrawn
-
2020
- 2020-09-01 CN CN202080061898.7A patent/CN114340462B/zh active Active
- 2020-09-01 EP EP20767747.7A patent/EP4025109B1/de active Active
- 2020-09-01 WO PCT/EP2020/074363 patent/WO2021043772A1/de not_active Ceased
- 2020-09-01 KR KR1020227007039A patent/KR20220057541A/ko active Pending
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2022
- 2022-03-03 US US17/685,569 patent/US12089792B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021043772A1 (de) | 2021-03-11 |
| US12089792B2 (en) | 2024-09-17 |
| CN114340462A (zh) | 2022-04-12 |
| EP4025109B1 (de) | 2023-06-07 |
| KR20220057541A (ko) | 2022-05-09 |
| US20220183527A1 (en) | 2022-06-16 |
| DE102019213539A1 (de) | 2021-03-11 |
| CN114340462B (zh) | 2023-09-19 |
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