EP0872543A2 - Spülmittel mit Korrosionsschutzwirkung - Google Patents
Spülmittel mit Korrosionsschutzwirkung Download PDFInfo
- Publication number
- EP0872543A2 EP0872543A2 EP98106424A EP98106424A EP0872543A2 EP 0872543 A2 EP0872543 A2 EP 0872543A2 EP 98106424 A EP98106424 A EP 98106424A EP 98106424 A EP98106424 A EP 98106424A EP 0872543 A2 EP0872543 A2 EP 0872543A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- triazole
- alkyl
- weight
- hydrogen
- radicals
- 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.)
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- 0 CC1=NC(*)=N*1 Chemical compound CC1=NC(*)=N*1 0.000 description 1
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
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3907—Organic compounds
- C11D3/3917—Nitrogen-containing 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0073—Anticorrosion 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
- C11D3/168—Organometallic compounds or orgometallic complexes
-
- 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
- C11D3/28—Heterocyclic compounds containing nitrogen in the ring
Definitions
- the invention relates to detergents, in particular machine detergents, containing a Corrosion protection agents for metals, especially for silver.
- a Corrosion protection agents for metals especially for silver.
- an anti-corrosion agent special triazole derivatives or complexes of di-, tri- or tetravalent metal salts with triazoles or mixtures of two or more of the components mentioned.
- Metal objects especially those made of silver, usually show on the long standing Air a significantly increasing discoloration, which is commonly used in common usage “Tarnishing” (corrosion) is called.
- Tarnishing corrosion
- this "tarnishing" leads to the formation of darker, brownish, bluish or possibly blue-black spots.
- reason for that is usually the particular sensitivity of the metal surface to oxygen as well sulfur-containing, especially sulfidic gases, such as those found in the ambient air.
- Corrosion is particularly noticeable when cleaning metal objects, especially when cleaning machine cleaning in dishwashers.
- metal objects in the sense of the invention all commercially or privately used metal objects in question, such as those in industry, Research and technology as well as in the private sector can be found.
- the metal objects show in usually contamination that should be removed by the cleaning process, for example fat or protein or carbohydrate pollution.
- Dinnerware and cutlery and kitchen utensils used in food preparation are exposed to such soiling.
- active oxygen compounds for example sodium perborate or sodium percarbonate
- bleachable stains For example, tea stains / tea deposits, coffee residues, vegetable dyes, lipstick residues and the like serve.
- Active chlorine and active oxygen are those in the sense of the present invention Proportions of chlorine or oxygen from the compounds containing active chlorine and active oxygen understood that are available for bleaching or for oxidation. Methods for determining the Active chlorine or active oxygen content is known to the person skilled in the art; Based on DIN 38409.
- Detergents generally consist of the functional building blocks and the bleaching system (Bleach plus bleach activator) and optionally other additives, for example Enzymes, wetting agents (surfactants) and / or fragrances.
- Metal surfaces, especially silver surfaces, react to low-alkaline, active chlorine-free Detergents are generally more sensitive than those containing active chlorine.
- active oxygen-containing detergents set what is actually bleaching when cleaning Agent (active oxygen) free.
- the bleaching effect of the active oxygen-containing cleaners is due to Bleach activators accelerated so that a good bleaching effect is achieved even at low temperatures becomes.
- the reactive intermediate usually forms Peracetic acid.
- silver surfaces appear not only sulfidic, but also by the oxidizing attack of the intermediates Peroxides or the active oxygen preferably oxidic coatings. Can under high salt load additional chloride deposits are formed.
- the tarnishing of the silver is also reinforced by higher residual water hardness during the cleaning cycle.
- Dishwashing detergent containing pentasodium triphosphate, sodium metasilicate, alkali carbonate and alkali perborate. They are usually used with pH values from 10.0 to 10.4 are free of activators.
- DE-B 12 79 877 describes a method for mechanical dishwashing, the Detergent used per compounds and activators for these per compounds - including fatty acid Manganese salts - in the form of separate granules. As per connections organic peracids or their salts are also suitable. An addition from Anti-corrosion agents are recommended, but these anti-corrosion agents are not specified be designated.
- DE-B 13 02 394 describes machine dishwashing detergents which also May contain alkali metal salts and a bleach activator. They also contain Enzymes and therefore only a pH value instead of the usually strongly alkaline pH value from 7-9.
- acylated organic substances as activators for Per compounds can be used wherever peroxy compounds are used, e.g. in the Passivation of aluminum or other light metal surfaces.
- EP-B 0 135 226 and EP-B 0 135 227 weakly alkaline, mechanically applicable Dishwashing detergent containing peroxy compounds and activators described as Silver protection agents etc. May contain benzotriazoles and fatty acids.
- EP-B 0 145 090 protects alkaline structures, which can also be used for machine dishwashing Detergent, the peroxy compounds and as an activator for this one in aqueous solution
- Manganese (II) ion-providing compound and sodium metasilicate and their aqueous solutions have a pH of 9.5 to 13. You can still use surface active compounds and contain additional known organic peroxide activators. The bleaching effect of the peroxy compounds tar stains are enhanced there by the addition of manganese (II) salt activators.
- DE-A 43 15 397 describes the use of redox compounds, for example manganese sulfate, Catechol, gallic acid or hydroquinone, as a corrosion protection agent for silver surfaces known.
- DE-A1 43 25 922 also relates to the prevention of corrosion on silver surfaces.
- the corresponding detergents are metal salts and metal complexes of Ti, Zr, Hf, V, Co and Ce added.
- a disadvantage has an effect on all triazole-containing detergents known from the prior art, that it can come in connection with active oxygen to the oxidation of the triazole compounds.
- the in Derivatives resulting from such an oxidation often have an unpleasant, sometimes annoying smell.
- the object of the invention is therefore to provide a detergent with an anti-corrosion agent place that shows a good corrosion-inhibiting effect without the occurrence of unpleasant odors.
- “dishwashing agents” include solid and liquid Compounds understood to remove unwanted stains from hard Surfaces are used.
- the detergents are usually in the liquid during the rinsing process Condition used, with solid detergent in a suitable solvent, preferably before use be dissolved or dispersed in water. It is particularly preferred to use the detergent use as a dilute aqueous solution and / or dispersion.
- the detergent according to the invention contains at least one water-soluble framework substance.
- scaffolding substance comes with all scaffolding substances usually used in detergents in question, e.g. polymeric alkali phosphates, which can be in the form of their alkaline, neutral or acidic sodium or potassium salts. Examples include: tetrasodium diphosphate, Disodium dihydrogen diphosphate, pentasodium triphosphate, so-called sodium hexametaphosphate as well as the corresponding potassium salts or mixtures of sodium hexametaphosphate and the corresponding Potassium salts or mixtures of sodium and potassium salts.
- the framework substance is usually in an amount of up to about 60% by weight, preferably up to about 35% by weight based on the total detergent, preferably the detergents according to the invention however free of phosphates.
- Other possible water-soluble framework substances are e.g. organic polymers of native or synthetic origin, especially polycarboxylates, which act as so-called co-builders, especially in hard water regions. Be considered for example polyacrylic acids and copolymers of maleic anhydride and acrylic acid and the Alkali, preferably the sodium salts of these polycarboxylates.
- Commercial products are e.g.
- Sokalan® CP5 and PA30 from BASF Alcosperse® 175 or 177 from Alco, LMW® 45N and SPO2 N from Norsohaas.
- the native polymers include, for example, oxidized Starch (as described in German patent application DE-A 42 28 786) and polyamino acids, such as polyglutamic acid or polyaspartic acid, as made by Cygnus or SRCHEM are available.
- the builders are the salts, especially the alkali salts, the citric acid, in particular Sodium citrate.
- Trisodium citrate dihydrate can be used as a fine or coarse crystalline powder.
- the acids on which the citrate is based are used.
- the framework substances also include the alkali silicates, the alkali carbonates and Alkali hydrogen carbonates.
- alkali silicates which mainly inhibit the corrosion of aluminum, onglaze decorations and Glasses are used, preferably anhydrous sodium or potassium disilicate, in which the ratio of alkali oxide to silicon dioxide is approximately 1: 2.
- the amount of alkali silicates in the total washing-up liquid is expediently about 0-10, preferably about 0-4% by weight.
- Alkali carbonates which can preferably be used are water-free compounds, but also those containing water of crystallization, and naturally occurring forms, for example Trona (Na 2 CO 3 x NaHCO 3 , from Solvay).
- Sodium carbonate and trona are preferred, the amount of the former being generally up to about 20% by weight, preferably about 7-12% by weight, the amount of the latter being up to about 40% by weight, preferably about 14-24 wt .-%, each based on the total detergent.
- the pH of the 1% -gen cleaner formulation rises above the desired weak alkaline range from 8 to 10.8, preferably about 9 to 9.5.
- a Substitution of sodium bicarbonate against citric acid in amounts of up to about 15% by weight, preferably up to about 8% by weight.
- alkali hydrogen carbonate which is generally used in the sodium form, can be used as Use the scaffold in the detergents according to the invention.
- the alkali hydrogen carbonate, especially sodium bicarbonate should preferably be in a coarse, compact form with a Grain size in the main fraction between about 0.4 and about 1.0 mm can be used.
- the amount of the alkali metal bicarbonate on the detergent according to the invention is about 5 to about 50% by weight, preferably about 25 to about 40% by weight.
- the detergents according to the invention have a pH of about 1% aqueous solution 7.5 to about 12, preferably about 8 to about 10.8 and particularly preferably about 9 to about 10.5.
- Preferred bleaches are oxygen-based bleaches, although they are these are primarily sodium perborate mono- and tetrahydrate or percarbonate salts.
- the use of percarbonate salts is advantageous because they are particularly beneficial for the Corrosion behavior of the detergent on glasses.
- the bleach is oxygen based therefore preferably a percarbonate salt, especially sodium percarbonate.
- the detergent according to the invention is used at least as a bleach Contains sodium perborate or sodium percarbonate or a mixture thereof.
- bleach activators can have an effect on the detergent according to the invention added. These bleach activators lead to an accelerated release of the active oxygen from the active oxygen-containing salt even at lower temperatures, such as at automatic cleaning of dishes, for example silverware, in conventional dishwashers to rule. As a rule, these are temperatures of approximately 50 ° C. and more, preferably approximately 60 ° C. As Bleach activators are used e.g.
- PAG penentaacetylglucose
- DADHT 1,5-diacetyl-2,2-dioxo-hexahydro-1,3,5-triazine
- ISA isatoic anhydride
- small amounts of known bleach stabilizers for example of phosphonates, borates or metaborates and metasilicates and of Magnesium salts such as magnesium sulfate may be useful.
- the proportion of bleach in the total detergent is a total of about 5-20% by weight, preferably about 5-15% by weight, based on the total mean.
- Sodium perborate is used in particular in amounts of up to approximately 15% by weight, preferably used in amounts of about 5 to about 10% by weight, sodium percarbonate in Amounts up to about 20% by weight, preferably in amounts from about 5 to about 12% by weight.
- the amount the bleach activator on the detergent according to the invention is about 1 to about 10% by weight, preferably about 2 to about 6% by weight, all the data in% by weight referring to the total Obtain detergent.
- the detergent according to the invention is a bleach activator N, N, N ', N'-tetraacetylethylenediamine (TAED) contains.
- TAED tetraacetylethylenediamine
- the triazole which can be used as component B) likewise shows a good corrosion protection effect for metal surfaces, in particular for silver.
- R 3 is preferably C 2 -C 6 alkylene, C 4 alkylene being preferred.
- Examples of compounds of component B) are 1,3-bis [3- (5-amino-1,2,4-triazolyl)] propane, 1,4-bis [3- (5-amino-1,2, 4-triazoyl)] - butane, 1,5-bis [3- (5-amino-1,2,4-triazolyl)] pentane, 1,6-bis [3- (5-amino-1,2-4-triazolyl)] hexane or 1,7-bis [3- (5-amino-1,2,4-triazolyl)] heptane. Is particularly preferred from this the 1,4-bis [3- (5-amino-1,2,4-triazoyl)] butane.
- the detergent according to the invention contains a metal-triazole complex A) or a mixture of several metal-triazole complexes A) or a bridged triazole B) or a mixture of several bridged triazoles B) or a mixture of A) and B) in an amount of about 0.001 up to 5% by weight, preferably in an amount of about 0.005 to 2.5% by weight, particularly preferably in in an amount of about 0.01 to 2% by weight and in particular in an amount of about 0.03 to 1.5 % By weight, based on the total detergent.
- the nonionic surfactants can be used in the dishwashing detergent, for example, as wetting agents, granulation aids or for better detachment of fatty substances such as food residues. They are generally used in an amount of up to about 4% by weight, preferably about 1 to about 2% by weight, based on the total detergent. Extremely low-foam connections are usually used. These preferably include the C 12 -C 18 alkyl polyethylene glycol polypropylene glycol ethers, each with up to 8 moles of ethylene oxide and propylene oxide units in the molecule.
- nonionic surfactants known to be low-foaming can also be used, such as, for example, C 12 -C 18 -alkylpolyethylene glycol-polybutylene glycol ether, each with up to 8 moles of ethylene oxide and butylene oxide units in the molecule, end-capped alkylpolyethylene glycol mixed ethers and the foaming but extremely advantageous for ecological reasons C 8 -C 14 alkyl polyglycosides with a degree of polymerization of about 1-4 (APG®225 and APG®600 from Henkel) and / or C 12 -C 14 alkyl polyethylene glycols with 3-8 ethylene oxide units in the molecule.
- the nonionic surfactants can be used individually or as a mixture of two or more of the nonionic surfactants listed in the detergent according to the invention.
- the detergent may have a dark color.
- surfactants from the family of the glucamides for example alkyl-N-methyl-glucamides, the term alkyl referring to fatty alcohol residues with a chain length of the alkyl residue of 6 to 14 carbon atoms. It may be advantageous if the surfactants described are not used in pure form, but rather as a mixture, for example the combination of alkyl polyglycoside with fatty alcohol ethoxylates or glucamides with alkyl polyglycosides and further binary or, if appropriate, ternary or quaternary or higher combinations of the nonionic surfactants disclosed here. Particularly low-foam surfactant combinations result from mixtures of C 6 -C 14 -alkyl polyglycosides with C 8 -alkyl-N-methyl-glucamides.
- the detergents foam too much during use, they can still contain up to about 6% by weight, preferably about 0.5 to about 5% by weight, based on the detergent, of a defoamer, preferably from the group of silicone oils, mixtures of silicone oil and hydrophobized Silicic acid, paraffin oil / Guerbet alcohols, paraffins, hydrophobicized silicic acid, bisstearic acid amides and other defoamers known to those skilled in the art can be added.
- a defoamer preferably from the group of silicone oils, mixtures of silicone oil and hydrophobized Silicic acid, paraffin oil / Guerbet alcohols, paraffins, hydrophobicized silicic acid, bisstearic acid amides and other defoamers known to those skilled in the art can be added.
- a defoamer preferably from the group of silicone oils, mixtures of silicone oil and hydrophobized Silicic acid, paraffin oil / Guerbet alcohols, paraffin
- proteases such as proteases, amylases, lipases and cellulases
- proteases such as BLAP®150 from Henkel, Optimase®-M-440, Optimase®-M-330, Opticlean®-M-375, Opticlean®-M-250 from Solvay Enzymes
- Maxacal® CX 450.000 Maxapem® from Ibis, Savinase® 4.0 T, 6.0 T, 8.0 T from Novo; or Esperase® T from Ibis
- amylases such as Termamyl® 60 T, 90 T from Novo
- Amylase-LT® from Solvay Enzymes
- Lipases such as Lipolase® 30 T from Novo or cellulases such as Celluzym® 0.7 T from Novo Nordisk.
- the enzymes are made up either individually or as a mixture two or more of the enzymes mentioned. As a rule, their respective share is on total detergent at about 0.2 to about 5 wt .-%, preferably at 0.5 to about 1.5 wt .-%.
- the detergent according to the invention can also improve fragrances to improve the smell contain.
- the detergents according to the invention can be present as solid or liquid detergents, preferably However, powdery, granular or tablet-like preparations are used, which are in Compact in the usual way, for example by mixing, granulating, rolling and / or by Spray drying,
- the framework substance or a mixture of two or more Framework substances with at least a proportion of liquid mixture components, such as water or non-ionic surfactants, mixed with increasing the bulk density of this premix, and Subsequently - if necessary after an intermediate drying - the other components of the detergent, including, for example, the anti-corrosion agent for metals, with the resultant Premix combined.
- liquid mixture components such as water or non-ionic surfactants
- the Intermediate drying should be carried out so that the alkali bicarbonate decomposes into alkali carbonate is as low as possible.
- Low drying temperatures don't just work for that Sodium bicarbonate fall counter, but increase the solubility of the granulated detergent the application. It is therefore advantageous when drying a supply air temperature that on the one hand Avoidance of bicarbonate decay should be as low as possible and, on the other hand, as high as necessary to obtain a product with good storage properties. Is preferred at Drying a supply air temperature of approx. 80 ° C. The granules themselves shouldn't be over temperatures be heated to about 60 ° C.
- the framework substance or the mixture of two or more builders generally in admixture with at least one other component of the Dishwasher detergent with the liquid components.
- the framework substance mixed with perborate with the liquid nonionic Surfactants and / or a solution of the fragrances, if such are desired are applied and is intimately mixed.
- the remaining components and the total mixture are then added worked through and homogenized in a mixing device.
- the shared use additional amounts of liquid, in particular the use of additional water, is in here usually not required.
- the resulting mixture of substances then lies as free-flowing, not dusting powder of the desired high bulk density.
- the pre-granules are then with the missing components of the invention Detergent, including, for example, the anti-corrosion agent for metals, for the finished product mixed.
- the mixing time is in all cases shown here, both in the preliminary stage of compacting mixture under the influence of liquid components as well as in the following Final mixing with the other components, in the range of a few minutes, for example in Range from 1 to 5 minutes.
- the procedure is preferably such that all constituents are mixed with one another in a mixer and the mixture is pressed by means of conventional tablet presses, for example eccentric presses or rotary presses, with pressures in the range from 200 ⁇ 10 5 Pa to 1500 ⁇ 10 5 Pa .
- a tablet produced in this way preferably has a weight of approximately 15 g to approximately 50 g, in particular approximately 20 g to approximately 30 g, the diameter of the tablet being about 35 mm to about 40 mm.
- the detergents according to the invention can be used as dishwashing detergents, preferably as machine detergents Dishwashing detergent can be used for dishwashers.
- Dishwashing detergent can be used for dishwashers.
- In the dishwasher can be both domestic dishwashers as well as commercial ones, as a rule larger dishwashers.
- the addition of the detergent according to the invention is usually done by hand or by means of suitable dosing devices.
- the application concentrations in the usually aqueous rinsing solution or rinsing dispersion (rinsing liquor) is about 2 to about 8 g detergent per liter of cleaning liquor, preferably about 3 to about 5 g / l.
- the cleaning of the parts to be cleaned is generally carried out sequentially. That is, on one The cleaning cycle is followed by an intermediate rinse cycle with clear water, with the cleaning-rinsing sequence can be repeated several times in succession. If necessary, and when using the The detergent according to the invention is preferred as the dishwashing detergent, follows the last cleaning-rinsing sequence a rinse cycle with a common rinse aid. After drying the cleaned parts are usually not only clean and hygienic, parts with a silver surface in particular remain brightly shiny.
- the invention furthermore relates to the use of a triazole of the general formula II, in which in each case two of the radicals R 2 and R 3 of two different molecules together represent C 1 -C 10 alkylene and the remaining radicals independently of one another are hydrogen, C 1 - C 20 alkyl, C 2 -C 20 alkenyl or NHR 4 , where R 4 is hydrogen or C 1 -C 10 alkyl, as corrosion inhibitor in detergents, in particular in machine detergents and particularly preferably in machine dishwashing detergents.
- a triazole of the general formula II in which in each case two of the radicals R 2 and R 3 of two different molecules together represent C 1 -C 10 alkylene and the remaining radicals independently of one another are hydrogen, C 1 - C 20 alkyl, C 2 -C 20 alkenyl or NHR 4 , where R 4 is hydrogen or C 1 -C 10 alkyl, as corrosion inhibitor in detergents, in particular in machine detergents and particularly preferably in machine dishwashing detergents.
- the invention also relates to the use of a detergent according to the invention as automatic dishwashing detergent and the use of a detergent according to the invention for Cleaning of objects.
- the metal-triazole complexes were prepared by two different methods. With method 1) triazole and metal salt were used in a molar ratio of 1: 4, which is preferable leads to mononuclear complexes, in process 2) triazole and metal salt were in a ratio of 1: 2 used, which leads to preferably multinuclear complexes
- the silver protection effect was checked by putting 500 ml of tap water (16 ° d) in the beaker submitted and heated to 35 ° C with stirring in the thermostat. After adding 2.5 g of the o.g. A silver spoon was dipped into the beaker, the contents of the beaker were opened Heated to 65 ° C (duration of heating: 20 ⁇ 1 min) and up to a total test duration of Leave at this temperature for 30 min. The test spoon was after the treatment with demineralized water rinsed and visually inspected.
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Abstract
Description
oder
oder eines Gemischs aus zwei oder mehr Triazolen der allgemeinen Formeln I und/oder II, mit
oder ein Gemisch aus zwei oder mehr der Komponenten A) und/oder B) enthalten ist.
oder
oder einem Gemisch aus zwei oder mehr Triazolen der allgemeinen Formeln I und/oder II, und
eingesetzt werden.
- nichtionische Tenside
- Enzyme
- Entschäumer
- Duftstoffe.
oder
oder ein Gemisch aus zwei oder mehr Triazolen der allgemeinen Formeln I und/oder II,
und
miteinander umgesetzt werden,
als Korrosionsschutzmittel in Spülmitteln, insbesondere in maschinellen Spülmitteln und besonders bevorzugt in maschinellen Geschirrspülmitteln.
- 20 - 60, vorzugsweise etwa 30 bis 50 Gew.-% Gerüstsubstanzen, hierunter insbesondere
etwa
- 20 bis 60, vorzugsweise etwa 30 bis 50 Gew.-% Pentanatriumtriphosphat oder
- 20 - 60, vorzugsweise etwa 30 bis 50 Gew.-% Citrat bzw. Salze der Hydroxycarbonsäuren oder
- 20 - 60, vorzugsweise etwa 30 bis 50 Gew.-% Citrat bzw. Salze der Hydroxycarbonsäuren und Pentanatriumtriphosphat mit einem beliebigen Mischungsverhältnis zwischen Citrat, gegebenenfalls weiteren Hydroxycarbonsäuren und Pentanatriumtriphosphat, und zusätzlich
- 0 - 15, vorzugsweise etwa 0 bis 8 Gew.-% Citronensäure,
- 0 - 12, vorzugsweise etwa 3 bis 8 Gew.-% Polymer (native oder synthetische Basis)
- 0 - 20, vorzugsweise etwa 7 bis 12 Gew.-% Natriumcarbonat, bzw. 0-40, vorzugsweise 14 bis 24 Gew.-% Trona,
- 0 - 10, vorzugsweise etwa 0 bis 4 Gew.-% Natriumsilikat,
- 5 - 50, vorzugsweise etwa 25 bis 40 Gew.-% Natriumhydrogencarbonat,
- 5 - 20, vorzugsweise etwa 5 bis 15 Gew.-% Bleichmittel, insbesondere
- 0 - 15, vorzugsweise etwa 5 bis 10 Gew.-% Natriumperborat und
- 0 - 20, vorzugsweise etwa 5 bis 12 Gew.-% Natriumpercarbonat, wobei entweder Perborat oder Percarbonat anwesend sein muß,
- 1 - 10, vorzugsweise etwa 2 bis 6 Gew.-% Bleichaktivator,
- 0 - 4, vorzugsweise etwa 1 bis 2 Gew.-% eines nichtionischen Tensids
- < 5, vorzugsweise 0,5 bis 1,5 Gew.-% Amylase,
- < 5, vorzugsweise 0,5 bis 1,5 Gew.-% Protease,
- < 5, vorzugsweise 0,5 bis 1,5 Gew.-% Lipase,
- < 5, vorzugsweise 0,5 bis 1,5 Gew.-% Cellulase,
- 0,001 bis 5, vorzugsweise 0,005 bis 2,5 Gew.-% mindestens eines Metall-Triazol-Komplexes wie unter A) definiert oder eines Triazols wie unter B) definiert, oder eines Gemischs aus A) und/oder B).
Metall-Triazol-Komplex | Dosierung in % | ||||||
0,001 | 0,01 | 0,05 | 0,1 | 0,25 | 0,5 | 1 | |
[Mn(C6H4H3)CH3COO)]n Verfahren 2) | 4 | 0-1 | 0 | 0 | 0 | 0 | 0 |
Mn(III)-benzotriazol-acetat Verfahren 2) | 3 | ||||||
Mangan(II)-benzotriazol-acetat Verfahren 1) | 0-1 | ||||||
Mangan(III)-benzotriazol-acetat Verfahren 1) | 0 | 0 | |||||
Vergleichsbeispiel: | |||||||
Mangansulfat | 4 | 4 | 3 |
Claims (14)
- Spülmittel, mindestens enthaltend Gerüstsubstanz, Bleichmittel, Bleichaktivator und ein Korrosionsschutzmittel für Metalle, dadurch gekennzeichnet, daß als Korrosionsschutzmittel entwederA) ein Metall-Triazol-Komplex herstellbar durch Umsetzunga) eines Triazols der allgemeinen Formel I worin R1 für ein, zwei, drei oder vier Substituenten, die unabhängig voneinander Wasserstoff oder ein oder mehrere lineare und/oder verzweigte Alkylreste mit 1 bis 10 C-Atomen sein können, steht,
oderb) eines Triazols der allgemeinen Formel II worin R2 und R3 unabhängig voneinander für Wasserstoff, C1-C20-Alkyl, C2-C20-Alkenyl oder einer der Reste R2 oder R3 für NHR4, wobei R4 Wasserstoff oder C1-C10-Alkyl bedeutet, stehen, oder jeweils zwei der Reste R2 und R3 von zwei verschiedenen Molekülen gemeinsam für C1-C10-Alkylen stehen,
oder eines Gemischs aus zwei oder mehr Triazolen der allgemeinen Formeln I und/oder II,
mitc) einem Metallsalz oder einem Gemisch aus zwei oder mehr Metallsalzen ausgewählt aus der Gruppe der Salze von Mn, Co, Zn, Fe, Mo, W oder Cu
oderB) ein Triazol der allgemeinen Formel II, worin jeweils zwei der Reste R2 und R3 von zwei Triazolmolekülen gemeinsam für C1-C10-Alkylen stehen und die verbleibenden Reste unabhängig voneinander für Wasserstoff, C1-C20-Alkyl, C2-C20-Alkenyl oder für NHR4 stehen, wobei R4 Wasserstoff oder C1-C10-Alkyl bedeutet,
oder ein Gemisch aus zwei oder mehr der Komponenten A) und/oder B) enthalten ist. - Spülmittel nach Anspruch 1, dadurch gekennzeichnet, daß R1 für vier Wasserstoffatome steht.
- Spülmittel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß R2 C5-C9-Alkyl und R3 NH2 bedeutet.
- Spülmittel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß zwei der Reste R2 oder R3 aus zwei Triazolmolekülen gemeinsam für C3-C5-Alkylen stehen.
- Spülmittel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß als Metallsalz ein Mangansalz oder ein Gemisch aus zwei oder mehr Mangansalzen eingesetzt wird.
- Spülmittel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß es als Bleichmittel mindestens Natriumperborat oder Natriumpercarbonat oder deren Gemisch enthält.
- Spülmittel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß es als Bleichaktivator N,N,N',N'-Tetraacetylethylendiamin (TAED) enthält.
- Spülmittel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß es in etwa 1%-iger wäßriger Lösung einen pH-Wert von etwa 7,5 bis etwa 12, vorzugsweise etwa 8 bis etwa 10,8 aufweist.
- Spülmittel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß es noch mindestens eine der nachfolgenden Substanzen enthält:nichtionische TensideEnzymeEntschäumerDuftstoffe.
- Spülmittel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß es etwa20 - 60, vorzugsweise etwa 30 bis 50 Gew.-% Gerüstsubstanzen, insbesondere etwa20 bis 60, vorzugsweise etwa 30 bis 50 Gew.-% Pentanatriumtriphosphat oder20 - 60, vorzugsweise etwa 30 bis 50 Gew.-% Citrat bzw. Salze der Hydroxycarbonsäuren oder20 - 60, vorzugsweise etwa 30 bis 50 Gew.-% Citrat bzw. Salze der Hydroxycarbonsäuren und Pentanatriumtriphosphat mit einem beliebigen Mischungsverhältnis zwischen Citrat, gegebenenfalls weiteren Hydroxycarbonsäuren und Pentanatriumtriphosphat,0 - 15, vorzugsweise etwa 0 bis 8 Gew.-% Citronensäure,0 - 12, vorzugsweise etwa 3 bis 8 Gew.-% Polymer (native oder synthetische Basis)0 - 20, vorzugsweise etwa 7 bis 12 Gew.-% Soda, bzw. 0-40, vorzugsweise 14 bis 24 Gew.-% Trona,0 - 10, vorzugsweise etwa 0 bis 4 Gew.-% Natriumsilikat,5 - 50, vorzugsweise etwa 25 bis 40 Gew.-% Natriumhydrogencarbonat,5 - 20, vorzugsweise etwa 5 bis 10 Gew.-% Bleichmittel, insbesondere0 - 15, vorzugsweise etwa 5 bis 10 Gew.-% Natriumperborat und0 - 20, vorzugsweise etwa 5 bis 10 Gew.-% Natriumpercarbonat, wobei entweder Perborat oder Percarbonat anwesend sein muß,1 - 10, vorzugsweise etwa 2 bis 6 Gew.-% Bleichaktivator,0 - 4, vorzugsweise etwa 1 bis 2 Gew.-% eines nichtionischen Tensids< 5, vorzugsweise 0,5 bis 1,5 Gew.-% Amylase,< 5, vorzugsweise 0,5 bis 1,5 Gew.-% Protease,< 5, vorzugsweise 0,5 bis 1,5 Gew.-% Lipase,< 5, vorzugsweise 0,5 bis 1,5 Gew.-% Cellulase,0,001 bis 5, vorzugsweise 0,005 bis 2,5 Gew.-% mindestens eines Metall-Triazol-Komplexes wie in Anspruch 1 unter A) definiert oder eines Triazols wie in Anspruch 1 unter B) definiert,
oder eines Gemischs aus A) und/oder B)
enthält. - Verwendung eines Metall-Triazol-Komplexes, herstellbar indema) ein Triazol der allgemeinen Formel I worin R1 für Wasserstoff oder jeweils für einen oder mehrere, voneinander unabhängige, lineare oder verzweigte Alkylreste mit 1 bis 10 C-Atomen steht, oderb) ein Triazol der allgemeinen Formel II worin R2 und R3 unabhängig voneinander für Wasserstoff, C1-C20-Alkyl, C2-C20-Alkenyl steht, oder einer der Reste R2 oder R3 für NHR4, wobei R4 Wasserstoff oder C1-C10-Alkyl bedeutet, stehen, oder jeweils zwei der Reste R2 und R3 von zwei verschiedenen Molekülen gemeinsam für C1-C10-Alkylen stehen und die verbleibenden Reste unabhängig voneinander für Wasserstoff, C1-C20-Alkyl, C2-C20-Alkenyl oder für NHR4 stehen, wobei R4 Wasserstoff oder C1-C10-Alkyl bedeutet, oder ein Gemisch aus zwei oder mehr Triazolen der allgemeinen Formeln I und/oder II,
undc) ein Metallsalz oder ein Gemisch aus zwei oder mehr Metallsalzen, ausgewählt aus der Gruppe der Salze von Mn, Co, Zn, Fe, Mo, W oder Cu,
miteinander umgesetzt werden,
als Korrosionsschutzmittel in Spülmitteln, insbesondere in maschinellen Spülmitteln und besonders bevorzugt in maschinellen Geschirrspülmitteln. - Verwendung eines Triazols der allgemeinen Formel II, worin jeweils zwei der Reste R2 und R3 von zwei Triazolmolekülen gemeinsam für C1-C10-Alkylen stehen und die verbleibenden Reste unabhängig voneinander für Wasserstoff, C1-C20-Alkyl, C2-C20-Alkenyl oder für NHR4 stehen, wobei R4 Wasserstoff oder C1-C10-Alkyl bedeutet, als Korrosionsschutzmittel in Spülmitteln, insbesondere in maschinellen Spülmitteln und besonders bevorzugt in maschinellen Geschirrspülmitteln.
- Verwendung eines Spülmittels gemäß Anspruch 1 bis 9 als maschinelles Geschirrspülmittel.
- Verwendung eines Spülmittels gemäß Anspruch 1 bis 9 zum Reinigen von Gegenständen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997116094 DE19716094A1 (de) | 1997-04-17 | 1997-04-17 | Spülmittel mit Korrosionsschutzwirkung |
DE19716094 | 1997-04-17 |
Publications (2)
Publication Number | Publication Date |
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EP0872543A2 true EP0872543A2 (de) | 1998-10-21 |
EP0872543A3 EP0872543A3 (de) | 1999-08-25 |
Family
ID=7826815
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Application Number | Title | Priority Date | Filing Date |
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EP98106424A Withdrawn EP0872543A3 (de) | 1997-04-17 | 1998-04-08 | Spülmittel mit Korrosionsschutzwirkung |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1613569A2 (de) * | 2003-04-11 | 2006-01-11 | Autoliv ASP, Inc. | Substituierte basische metallnitrate bei gaserzeugung |
US7243664B2 (en) | 2005-03-04 | 2007-07-17 | The Procter & Gamble Company | Automatic dishwashing composition with corrosion inhibitors |
US7294211B2 (en) | 2002-01-04 | 2007-11-13 | University Of Dayton | Non-toxic corrosion-protection conversion coats based on cobalt |
US9138393B2 (en) | 2013-02-08 | 2015-09-22 | The Procter & Gamble Company | Cosmetic compositions containing substituted azole and methods for improving the appearance of aging skin |
US9144538B2 (en) | 2013-02-08 | 2015-09-29 | The Procter & Gamble Company | Cosmetic compositions containing substituted azole and methods for alleviating the signs of photoaged skin |
EP3623456A1 (de) | 2018-09-12 | 2020-03-18 | CLARO Products GmbH | Silberschutzmittel |
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WO1997005222A1 (en) * | 1995-07-25 | 1997-02-13 | Henkel Corporation | Composition and method for degreasing metal surfaces |
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WO1995010588A1 (en) * | 1993-10-14 | 1995-04-20 | Unilever N.V. | Detergent compositions containing silver anti-tarnishing agents |
EP0682105A2 (de) * | 1994-04-13 | 1995-11-15 | The Procter & Gamble Company | Bleichmittelzusammensetzungen |
WO1997003177A1 (de) * | 1995-07-13 | 1997-01-30 | Joh. A. Benckiser Gmbh | Geschirrwaschmaschinenspülmittel in form einer tablette |
WO1997005222A1 (en) * | 1995-07-25 | 1997-02-13 | Henkel Corporation | Composition and method for degreasing metal surfaces |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7294211B2 (en) | 2002-01-04 | 2007-11-13 | University Of Dayton | Non-toxic corrosion-protection conversion coats based on cobalt |
EP1613569A2 (de) * | 2003-04-11 | 2006-01-11 | Autoliv ASP, Inc. | Substituierte basische metallnitrate bei gaserzeugung |
EP1613569A4 (de) * | 2003-04-11 | 2009-06-03 | Autoliv Asp Inc | Substituierte basische metallnitrate bei gaserzeugung |
US7243664B2 (en) | 2005-03-04 | 2007-07-17 | The Procter & Gamble Company | Automatic dishwashing composition with corrosion inhibitors |
US9138393B2 (en) | 2013-02-08 | 2015-09-22 | The Procter & Gamble Company | Cosmetic compositions containing substituted azole and methods for improving the appearance of aging skin |
US9144538B2 (en) | 2013-02-08 | 2015-09-29 | The Procter & Gamble Company | Cosmetic compositions containing substituted azole and methods for alleviating the signs of photoaged skin |
EP3623456A1 (de) | 2018-09-12 | 2020-03-18 | CLARO Products GmbH | Silberschutzmittel |
WO2020053316A1 (de) | 2018-09-12 | 2020-03-19 | Claro Products Gmbh | Silberschutzmittel |
Also Published As
Publication number | Publication date |
---|---|
DE19716094A1 (de) | 1998-10-22 |
EP0872543A3 (de) | 1999-08-25 |
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