Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/26—Organic compounds containing nitrogen
  • C11D3/33—Amino carboxylic acids
• • 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
  • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
  • C11D2111/10—Objects to be cleaned
  • C11D2111/14—Hard surfaces

Definitions

• the present invention relates to the use of a composition for improving the cleaning performance of a machine dishwashing detergent over bleachable and stubborn stains that can be used together with a dishwasher detergent in a normal dishwashing process, and a combination product containing this detergency booster together with a dishwasher detergent. Also included is a method for cleaning dishes in an automatic dishwashing machine using this cleaning force enhancer.
• cleaning power boosters are generally known, they contain acids, especially citric acid. This leads to a lowering of the pH value in the rinsing liquor and to the loss of the alkalinity which is important for the rinsing performance, above all for the effective removal of burned-on soiling. The result is therefore a poorer cleaning result on stubborn, baked stains.
• WO 2010/149695 and WO 2008/095560 disclose automatic dishwashing detergents comprising aminocarboxylic acids as organic builders.
• composition which contains a strong organic complexing agent and has an overall neutral to alkaline pH significantly improves the cleaning performance of conventional automatic dishwasher detergents.
• the present invention is directed to the use of a composition having a pH in the range 7-14, preferably 8.5-12, containing at least one organic builder, wherein the at least one organic builder is present in an amount of at least 25% by weight, in particular at least 30% by weight, preferably at least 35% by weight, particularly preferably at least 40% by weight, most preferably at least 45% by weight based on the composition, the absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job, and the at least one organic builder one Aminocarboxylic acid, which is preferably selected from methylglycine acetic acid (MGDA) and its salts, glutamic diacetic acid (GLDA) and its salts, and ethylenediaminediacetic acid (EDDA) and its salts, for improving the detergency of automatic dishwashing detergent in an automatic dishwashing machine, wherein the A pre
• At least one includes, but is not limited to, 1, 2, 3, 4, 5, 6 and more.
• Normal cleaning cycle refers to a program for cleaning dishes of an automatic dishwashing machine. Such a cleaning cycle may include one or more pre-rinse steps, one or more main rinse steps, and one or more drying steps. Such a cleaning cycle involves the automatic cleaning / rinsing of soiled dishes.
• Crop performance refers to the property of ridding hard surfaces, particularly the surface of dishes, of soils, especially food scraps.
• An “improvement in cleaning performance” thus means an improved removal of such soiling compared to a reference method.
• a composition comprising at least one organic builder and a pH is used in a normal cleaning cycle in addition to a machine dishwashing detergent Value in the range 7-14, preferably 8.5-12, wherein the at least one organic builder in an amount of at least 25 wt.%, In particular at least 30 wt.%, Preferably at least 35 wt.%, Particularly preferably at least 40 % By weight, most preferably at least 45% by weight of the composition, the absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job, and the at least one organic builder is an aminocarboxylic acid, which is preferably selected from methylglycines acetic acid (MGDA) and its salts, glutamic diacetic acid (GLDA) and its salts, and
• MGDA methylglycines acetic acid
• GLDA glutamic diacetic acid
• the present invention is also directed to a combination product comprising, in separate formulations, preferably in each pre-portioned form, a detergency booster composition and an automatic dishwashing detergent machine, wherein the detergency enhancer composition comprises at least one organic builder and a pH in the range 7-14, preferably 8.5-12, wherein the at least one organic builder in an amount of at least 25 wt.%, In particular at least 30 wt.%, Preferably at least 35 wt.%, Particularly preferably at least 40 wt.
• the absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job is at least one organic builder is an amino carboxylic acid, preferably is selected from methylglycine acetic acid (MGDA) and its salts, glutamic diacetic acid (GLDA) and its salts, and ethylenediamine diacetic acid (EDDA) and its salts, wherein the cleaning power fortification composition is in preportioned form in a water soluble film, the preportioned form having a total weight of 25 -40 g.
• MGDA methylglycine acetic acid
• GLDA glutamic diacetic acid
• EDDA ethylenediamine diacetic acid
• the automatic dishwashing detergent may be a liquid and / or solid dishwashing detergent conventionally used in the art, formulated, for example, as a tablet or pouch; Furthermore, it may be in a water-insoluble, water-soluble or water-dispersible film, in particular in a polyvinyl alcohol-containing film.
• the strong organic builders used in the compositions herein are aminocarboxylic acids and / or their salts.
• Particularly preferred members of this class are methylglycinediacetic acid (MGDA) or its salts, and glutamic diacetic acid (GLDA) or its salts, or ethylenediaminediacetic acid (EDDA) or its salts, most preferably MGDA.
• MGDA methylglycinediacetic acid
• GLDA glutamic diacetic acid
• EDDA ethylenediaminediacetic acid
• IDS iminodisuccinic acid
• IDA iminodiacetic acid
• the organic builder is in an amount of at least 25 wt.%, In particular at least 30 wt.%, Preferably at least 35 wt.%, Particularly preferably at least 40 wt.%, Am most preferably at least 45% by weight, based on the agent used.
• the agent contains 30 to 100% by weight, preferably 30 to 90% by weight, 30 to 80% by weight, 30 to 70% by weight or 30 to 60% by weight of the at least one organic builder.
• the amount of the at least one organic builder in the composition is at least 50 wt%, at least 55 wt%, at least 60 wt%, at least 65 wt%, at least 70 wt%, at least 75 wt%, at least 80% by weight, at least 85% by weight, at least 90% by weight or at least 95% by weight.
• the absolute amount of the at least one organic builder in the composition is 1-25 g / job, preferably 2-20 g / job, more preferably 4-12 g / job.
• the term "g / job" in this context means that the composition, ie the detergency booster, in a quantity and form intended for a single use contains the said amount of organic builder. It has been found that, in particular with amounts of 10 g and more per application, good results can be achieved in increasing the cleaning performance of a machine dishwashing detergent.
• the agents described herein may further contain at least one nonionic surfactant.
• nonionic surfactants it is possible to use all nonionic surfactants known to the person skilled in the art.
• Suitable nonionic surfactants are, for example, methyl-branched aliphatic radical, the symbol are alkyl glycosides of the general formula RO (G) x, a primary straight-chain R or methyl-branched, especially in the 2-position having from 8 to 22 and preferably corresponds to 12 to 18 C-atoms and G which is a glycose unit having 5 or 6 C atoms, preferably glucose.
• the degree of oligomerization x which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; preferably x is 1.2 to 1.4.
• nonionic surfactants which can be used either as the sole nonionic surfactant or in combination with other nonionic surfactants are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably having from 1 to 4 carbon atoms in the alkyl chain.
• Nonionic surfactants of the amine oxide type for example N-cocoalkyl-N, N-dimethylamine oxide and N-tallowalkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable.
• the amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, especially not more than half thereof.
• surfactants are the polyhydroxy fatty acid amides known as PHFA.
• low-foaming nonionic surfactants are preferably used, in particular alkoxylated, especially ethoxylated, low-foaming nonionic surfactants.
• the automatic dishwasher detergents preferably contain nonionic surfactants from the group of the alkoxylated alcohols.
• nonionic surfactants which have a melting point above room temperature.
• Nonionic (s) surfactants having a melting point above 20 ° C, preferably above 25 ° C, more preferably between 25 and 60 ° C and especially between 26.6 and 43.3 ° C, is / are particularly preferred.
• surfactants come from the groups of alkoxylated nonionic surfactants, in particular the ethoxylated primary alcohols and mixtures of these surfactants with structurally complicated surfactants such as polyoxypropylene / polyoxyethylene / polyoxypropylene ((PO / EO / PO) surfactants).
• Such (PO / EO / PO) nonionic surfactants are also characterized by good foam control.
• nonionic surfactants are those which have alternating ethylene oxide and alkylene oxide units.
• surfactants with EO-AO-EO-AO blocks are preferred, wherein in each case one to ten EO or AO groups are bonded to each other before a block of the other groups follows.
• nonionic surfactants of the general formula in which R 1 is a straight-chain or branched, saturated or mono- or polyunsaturated C 6-24 alkyl or alkenyl radical; each group R 2 or R 3 is independently selected from -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 -CH 3 , CH (CH 3 ) 2 and the indices w, x, y, z independently stand for integers from 1 to 6.
• nonionic surfactants having a C 9-15 alkyl group having 1 to 4 ethylene oxide units followed by 1 to 4 propylene oxide units followed by 1 to 4 ethylene oxide units followed by 1 to 4 propylene oxide units.
• surfactants of the formula R 1 O [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y CH 2 CH (OH) R 2 , in which R 1 is a linear or branched aliphatic hydrocarbon radical with 4 R 2 is a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof and x is values between 0.5 and 1.5 and y is a value of at least 15.
• the group of these nonionic surfactants include, for example, the C 2-26 fatty alcohol (PO) 1 - (EO) 15-40 -2-hydroxyalkyl ethers, in particular also the C 8-10 fatty alcohol (PO) 1 - (EO) 22 -2 -hydroxydecylether.
• nonionic surfactants are the end-capped poly (oxyalkylated) nonionic surfactants of the formula R 1 O [CH 2 CH (R 3 ) O] x [CH 2 ] k CH (OH) [CH 2 ] j OR 2 in which R 1 and R 2 is linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having 1 to 30 carbon atoms, R 3 is H or a methyl, ethyl, n-propyl, iso-propyl, n-butyl, 2- Butyl or 2-methyl-2-butyl radical, x are values between 1 and 30, k and j are values between 1 and 12, preferably between 1 and 5.
• each R 3 in the above formula R 1 O [CH 2 CH (R 3 ) O] x [CH 2 ] k CH (OH) [CH 2 ] j OR 2 may be different.
• R 1 and R 2 are preferably linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having 6 to 22 carbon atoms, with radicals having 8 to 18 carbon atoms being particularly preferred.
• R 3 is H, -CH 3 or -CH 2 CH 3 particularly preferred.
• Particularly preferred values for x are in the range from 1 to 20, in particular from 6 to 15.
• each R 3 in the above formula may be different if x ⁇ 2.
• the alkylene oxide unit in the square bracket can be varied.
• the value 3 for x has been selected here by way of example and may well be greater, with the variation width increasing with increasing x values and including, for example, a large number (EO) groups combined with a small number (PO) groups, or vice versa ,
• R 1 , R 2 and R 3 are as defined above and x is from 1 to 30, preferably from 1 to 20 and in particular from 6 to 18.
• Particularly preferred are surfactants in which the radicals R 1 and R 2 has 9 to 14 C atoms, R 3 is H and x assumes values of 6 to 15.
• compositions described herein which comprise at least one nonionic surfactant, preferably a nonionic surfactant from the group of hydroxy mixed ethers, contain the surfactant in various embodiments in an amount based on the total weight of the composition of at least 5 wt.%, Preferably at least 10 wt. %. In specific embodiments, the amount may be more than 10% by weight, for example 11-15% by weight.
• the amounts used per application may be in the range of 1.2-10 g / job, preferably in the range of 2-5 g / job.
• the pH of the compositions described herein can be adjusted by means of conventional pH regulators.
• the pH of the composition is in a range from 7.0 to 14.0, preferably 8.5 to 12.
• the pH adjusters are preferably alkalis.
• Suitable bases are selected from the group of alkali and alkaline earth metal hydroxides and carbonates, in particular the alkali metal carbonates, of which sodium carbonate is preferred.
• the cleaning power amplification agents described herein may contain at least one further constituent, preferably selected from the group consisting of further builders, in particular alkali carriers, preferably alkali metal carbonates, more preferably sodium carbonate, other surfactants, especially anionic surfactants, polymers, enzymes, corrosion inhibitors, glass corrosion inhibitors, disintegration aids, Contains fragrances and perfume carriers.
• further builders in particular alkali carriers, preferably alkali metal carbonates, more preferably sodium carbonate, other surfactants, especially anionic surfactants, polymers, enzymes, corrosion inhibitors, glass corrosion inhibitors, disintegration aids, Contains fragrances and perfume carriers.
• the agent is phosphate and / or phosphonate free.
• the agent is bleach-free.
• Phosphate-free and “phosphonate-free” as used herein means that the subject composition is substantially free of phosphates or phosphonates, i. in particular phosphates or phosphonates in amounts less than 0.1 wt .-%, preferably less than 0.01 wt .-% based on the total composition.
• bleach-free as used herein means that the subject composition is substantially free of bleaching agents, i. known bleaching agents or substances suitable as bleaching agents in amounts less than 0.1 wt .-%, preferably less than 0.01 wt .-% based on the total composition.
• Preferred anionic surfactants are fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates, alkylbenzenesulfonates, olefinsulfonates, alkanesulfonates, ether sulfonates, n-alkyl ether sulfonates, ester sulfonates and lignosulfonates.
• fatty acid cyanamides sulfosuccinates (sulfosuccinic esters), in particular sulfosuccinic mono- and di-C 8 -C 18 -alkyl esters, sulfosuccinamates, sulfosuccinamides, fatty acid isethionates, acylaminoalkanesulfonates (fatty acid taurides), fatty acid sarcosinates, ether carboxylic acids and alkyl (ether) phosphates and ⁇ -sulfofatty acid salts, acylglutamates, monoglyceride disulfates and alkyl ethers of glycerol disulfate.
• sulfosuccinates sulfosuccinic esters
• sulfosuccinic mono- and di-C 8 -C 18 -alkyl esters sulfosuccinamates
• the anionic surfactants are preferably used as sodium salts, but may also be present as other alkali or alkaline earth metal salts, for example potassium or magnesium salts, and in the form of ammonium or mono-, di-, tri- or tetraalkylammonium salts, in the case of the sulfonates also in the form of their corresponding acid, eg Dodecylbenzenesulfonic.
• the additional builders that can be used include in particular carbonates, organic cobuilders and silicates.
• alkali carbonates, especially sodium carbonate can, as mentioned above, also be used as pH adjusting agents and are contained in various embodiments of the invention in an amount of 15-50% by weight, preferably 20-40% by weight, based on the composition.
• Particularly suitable organic co-builders are polycarboxylates / polycarboxylic acids, polymeric carboxylates, aspartic acid, polyacetals and dextrins.
• 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.
• NTA nitrilotriacetic acid
• 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.
• the agents can also be builders of crystalline layered silicates of the general formula NaMSi x O 2x + 1 .yH 2 O, where M is sodium or hydrogen, x is a number from 1.9 to 22, preferably from 1.9 to 4, where Particularly preferred values for x are 2, 3 or 4, and y is a number from 0 to 33, preferably from 0 to 20. It is also possible to use amorphous sodium silicates with a modulus of Na 2 O: SiO 2 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 are preferably delay-delayed 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 agents are silicate-free.
• perfume oils or perfumes within the scope of the present invention, individual fragrance compounds, e.g. the synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type are used. Preferably, however, mixtures of different fragrances are used, which together produce an attractive fragrance.
• perfume oils may also contain natural fragrance mixtures such as are available from vegetable sources, e.g. Pine, citrus, jasmine, patchouli, rose or ylang-ylang oil.
• the formulation of cleaning enhancers described herein can be done in different ways.
• the funds may be in fixed or liquid form. Powder, granules, extrudates, compacts, 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 or pastes.
• the agents described herein are preformed into dosage units. These dosing units comprise the amount of cleaning-active substances necessary for the desired cleaning power boost. Preferred metering units have a weight between 25 and 40 g and in particular between 30 and 36 g. In order to achieve an optimum cleaning result, the agents are in the form of a prefabricated dosing unit and contain between 1 and 25, preferably between 2 and 20 g, more preferably between 4 and 12 g of the organic builder and optionally between 1.2 and 10 g, preferably between 2 and 5 g of nonionic surfactant (s).
• the volume of the aforementioned metering units and their spatial form are selected with particular preference so that the metering of the prefabricated units can not take place via the metering chamber of a dishwasher, but the unit must be placed directly into the interior of the dishwasher.
• both the detergency boosters described herein and the dishwashing detergent are preferably in pre-assembled dosage units.
• Preferred dosing units of the dishwashing detergents have a weight of between 12 and 30 g, preferably between 15 and 25 g and in particular between 18 and 22 g.
• the volume of the aforementioned metering units and their spatial form are with particular preference chosen so that the metering of the prefabricated units can be done via the metering chamber of a dishwasher.
• the water-soluble coating is preferably formed from a water-soluble film material selected from the group consisting of polymers or polymer blends.
• the wrapper may be formed of one or two or more layers of the water-soluble film material.
• the water-soluble film material of the first layer and the further layers, if present, may be the same or different. Particularly preferred are films which, for example, can be glued and / or sealed to packages such as hoses or cushions after being filled with an agent.
• the water-soluble coating contains polyvinyl alcohol or a polyvinyl alcohol copolymer.
• Water-soluble coatings containing polyvinyl alcohol or a polyvinyl alcohol copolymer have a good stability with a sufficiently high water solubility, in particular cold water solubility on.
• Suitable water-soluble films for producing the water-soluble coating are preferably based on a polyvinyl alcohol or a polyvinyl alcohol copolymer whose molecular weight is in the range of 10,000 to 1,000,000 gmol -1 , preferably 20,000 to 500,000 gmol -1 , more preferably 30,000 to 100,000 gmol -1 and especially from 40,000 to 80,000 gmol -1 .
• polyvinyl alcohol is usually carried out by hydrolysis of polyvinyl acetate, since the direct synthesis route is not possible.
• polyvinyl alcohol copolymers which are prepared from correspondingly polyvinyl acetate copolymers. It is preferred if at least one layer of the water-soluble coating comprises a polyvinyl alcohol whose degree of hydrolysis makes up 70 to 100 mol%, preferably 80 to 90 mol%, particularly preferably 81 to 89 mol% and in particular 82 to 88 mol%.
• a polymer selected from the group consisting of (meth) acrylic acid-containing (co) polymers, polyacrylamides, oxazoline polymers, polystyrenesulfonates, polyurethanes, polyesters, polyethers, polylactic acid, or mixtures of the above may be additionally used in a polyvinyl alcohol-containing film material suitable for producing the water-soluble coating Be added polymers.
• a preferred additional polymer is polylactic acids.
• Preferred polyvinyl alcohol copolymers include, in addition to vinyl alcohol, dicarboxylic acids as further monomers.
• Suitable dicarboxylic acids are itaconic acid, malonic acid, succinic acid and mixtures thereof, with itaconic acid being preferred.
• polyvinyl alcohol copolymers include, in addition to vinyl alcohol, an ethylenically unsaturated carboxylic acid, its salt or its esters.
• Such polyvinyl alcohol copolymers particularly preferably contain, in addition to vinyl alcohol, acrylic acid, methacrylic acid, acrylates, methacrylates or mixtures thereof.
• the film material contains further additives.
• the film material may contain, for example, plasticizers such as dipropylene glycol, ethylene glycol, diethylene glycol, propylene glycol, glycerol, sorbitol, mannitol or mixtures thereof.
• Further additives include, for example, release aids, fillers, crosslinking agents, surfactants, antioxidants, UV absorbers, antiblocking agents, anti-sticking agents or mixtures thereof.
• Suitable water-soluble films for use in the water-soluble casings of the water-soluble packaging according to the invention are films sold by the company MonoSol LLC, for example under the designation M8630, C8400 or M8900.
• Other suitable films include films named Solublon® PT, Solublon® GA, Solublon® KC or Solublon® KL from Aicello Chemical Europe GmbH or the films VF-HP from Kuraray.
• the composition for cleaning power reinforcement is in solid, in particular in powder form and / or in pre-portioned form and / or is in a water-insoluble, water-soluble or water-dispersible packaging, in particular in a polyvinyl alcohol-containing film.
• the composition for cleaning power reinforcement is in liquid form and / or in pre-portioned form and / or is in a water-insoluble, water-soluble or water-dispersible packaging, in particular in a polyvinyl alcohol-containing film.
• the invention also relates to a dishwashing process, in particular a machine dishwashing process, in which a cleaning power amplifier according to the invention is used.
• the subject of the present application is therefore also a process for cleaning dishes in a dishwasher, in which the cleaning power amplifier according to the invention is metered into the interior of a dishwasher during the passage of a dishwashing program before the main wash cycle or during the main wash cycle.
• the metering or the entry of the agent according to the invention into the interior of the dishwasher can be done manually.
• Example 1 Increase of the cleaning performance of a dishwashing detergent
• the formulations according to the invention 1, 2 and 3 show a significantly better performance on all soils compared to the basic formula. Compared with the use of additional surfactant (formula 4), the performance of all three recipes for minced meat soils is significantly better and when using larger quantities of MGDA, a better effect on tea and milk soiling can also be observed.
• the additional use of surfactant in Formulation 2 shows no significant improvement compared to the use of MGDA alone (Formulation 3).

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• 2013
  • 2013-12-10 DE DE102013225485.7A patent/DE102013225485A1/de not_active Withdrawn
• 2014
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  • 2014-12-03 EP EP14806632.7A patent/EP3080239B1/de active Active
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