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
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/046—Salts
• • 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
  • C11D10/00—Compositions of detergents, not provided for by one single preceding group
  • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
  • C11D10/045—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on non-ionic surface-active compounds and soap
• • 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
  • C11D1/04—Carboxylic acids or salts thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups

Definitions

• the invention relates to the use of a stable, flowable agent which at least a nonionic surfactant mixture, at least one long-chain carboxylic acid and / or their salt, a water-soluble abrasive in solid, finely divided form and optionally contains at least one synthetic anionic surfactant, as a cleaning agent for non-textile Surfaces, especially for hard surfaces or skin.
• Liquid cleaning agents with solid abrasive components are known. So describes for example EP-B-0 502 030 a cleaning agent with a proportion of 45% by weight up to 75% by weight of undissolved sodium bicarbonate and more than 10% by weight of water.
• liquid cleaning agents known from the prior art have the Disadvantage that they contain significant amounts of water, which usually does not Contributes to the cleaning power of the cleaning agent.
• US Pat. No. 4,264,466 preferably discloses anhydrous, liquid particle suspensions, containing anionic surfactants, suspended solid and one on the suspension clay mineral with a stabilizing effect.
• the anionic surfactant mixtures disclosed are Without the clay mineral as an aid, you will not be able to achieve long-term stabilization to ensure the suspension.
• the object of the invention was therefore to provide an anhydrous, pasty cleaning agent for hard surfaces or for skin that is capable of to remove even the most stubborn dirt. It was still the job of Invention, an anhydrous, pasty cleaning agent for hard surfaces or to make available for skin, despite the high dirt-dissolving power, the one to be cleaned Protects the surface and can be removed without a trace after the cleaning process.
• a cleaning agent for hard surfaces to provide the decorative surfaces, for example high-gloss Lacquered surfaces, from stubborn dirt, for example felt-tip markers, without leaving any residues without preserving its decorative function without the surface to damage.
• WO 95/09229 discloses an anhydrous, liquid to pasty surfactant mixture with a finely divided, solid phase dispersed therein.
• concentrated surfactant mixture with the finely divided, solid phase dispersed therein Hard surface cleaners or as a skin cleanser will use not disclosed in the publication.
• surfactant mixture is used for mixtures of components A) and B) or A), B) and C).
• Component A which in itself already represents a surfactant mixture, is referred to below as a “nonionic surfactant mixture” .
• the cleaning agent itself which contains components A), B and C) and, if appropriate, further additives, is also referred to as "agent" in the following text.
• the surfactant mixtures used can have intrinsic viscosity. This means that the cleaning agent produced using components A), B) and C) not without the action of shear forces at room temperature under the influence of gravity is flowable, but has a significantly lower viscosity under shear and under Gravity flows.
• One way to quantify this behavior offers a common rotary viscometer at different speeds the spindle.
• Cleaning agents according to the invention exhibit at 25 ° C.
• Viscosities greater than about 400,000 mPa ⁇ s, greater than about 600,000 mPa ⁇ s or more than about 800,000 mPa ⁇ s can be advantageous.
• the cleaning agents according to the invention show preferably a viscosity below 300,000 mPa ⁇ s, in particular from about 71,000 mPa ⁇ s to about 140,000 mPa ⁇ s, and more preferably from about 75,000 mPa ⁇ s to about 130,000 mPas.
• the intrinsic viscosity of the detergent is some beneficial Gives properties, for example easy removal from the storage container due to the decreasing viscosity when sheared, or an easier application to the to clean surface or skin without the need for the detergent to dilute, and with full preservation of the total cleaning power.
• Structural viscosity is not a necessary requirement for those described in the context of this invention Detergent because the cleaning power does not depend on the viscosity behavior depends on shear.
• a particularly high viscosity even under shear represents an advantageous feature for the cleaning agent according to the invention if, e.g. when cleaning a vertical or a moving surface a too fast Run or prevent the detergent from splashing.
• Structural viscosity is therefore, depending on the intended use of the detergent, an optional feature.
• the radicals R 1 and R 2 are linear or branched and can, for example, have an alkyl group, in particular a methyl group, in the 2-position. Such a methyl branch is often present when so-called oxo alcohols have been used to prepare the surfactants of the general formula I.
• the surfactants of the general formulas I and II are general to the person skilled in the art known methods available by alkoxylation of appropriate alcohols.
• the alcohols are in a catalytic reaction with ethylene oxide and / or Propylene oxide reacted in the desired ratio until the corresponding Surfactant or the surfactant mixture according to one of the general formulas I and II is.
• surfactants liquid at room temperature are particularly preferred those which are preferred at temperatures below 15 ° C. below 10 ° C, melt. If desired, small amounts of similar built-up nonionic surfactants with a higher melting point, as long as it is ensured that the nonionic component of the surfactant mixture at least Room temperature, preferably at 15 ° C and especially at 10 ° C, is liquid.
• Surfactant mixture 48 wt .-% to 64 wt .-% nonionic surfactant of the general Formula I and 28 wt% to 40 wt% nonionic surfactant of the general Formula II.
• the carboxylic acid or its salt contained as component B) in the surfactant mixture is preferably selected from the group of saturated and / or unsaturated C 12-18 fatty acids, for example coconut, palm kernel or tallow fatty acids, or their alkali metal salts (soaps).
• carboxylic acid mixture of, based in each case on the total carboxylic acid mixture, of 2% by weight to 8% by weight of C 14- , up to 1% by weight of C 15- , 18% by weight to 24% is particularly preferred % C 16 -, up to 3% by weight C 17 -, 20% by weight to 42% by weight C 18 - and 30% by weight to 44% by weight C 20 - to C 22 -Carboxylic acids and / or their alkali salts.
• the surfactant mixture used in the cleaning agent according to the invention contains in particular a total of about 2% by weight to about 6% by weight of carboxylic acid and / or its Alkali salt.
• up to 10% by weight in particular, can be present in the cleaning agent according to the invention 0.5% to 8% by weight, synthetic anionic surfactant solid at room temperature and / or up to 5% by weight, in particular 0.1% by weight to 4% by weight, with Room temperature solid, alkali stable and shear stable foam regulator can be included.
• Suitable synthetic anionic surfactants which can be incorporated into the surfactant mixture in solid, finely divided, largely anhydrous form include, in particular, those of the sulfonate or sulfate type which are normally present as alkali metal salts, preferably as sodium salts.
• the surfactants of the sulfonate type mentioned can also be used in the form of their free acids.
• Suitable anionic surfactants of the sulfonate type are alkylbenzenesulfonates with linear C 9-13 alkyl chains, in particular dodecylbenzenesulfonate, linear alkanesulfonates with 11 to 15 C atoms, as can be obtained by sulfochlorination or sulfoxidation of alkanes and subsequent saponification or neutralization, salts sulfo fatty acids and their esters, which are derived from saturated C 12-18 fatty acids and lower alcohols, such as methanol, ethanol and propanol, in particular in the ⁇ -position, and olefin sulfonates, such as those obtained by SO 3 sulfonation of terminal C 12 18 olefins and subsequent alkaline hydrolysis are formed.
• Suitable surfactants of the sulfate type are, in particular, the primary alkyl sulfates with preferably linear alkyl radicals having 10 to 20 carbon atoms, which have an alkali metal, ammonium or alkyl or hydroxyalkyl-substituted ammonium ion as counter cation.
• the derivatives of linear alcohols with in particular 12 to 18 carbon atoms and their branched analogs, the so-called oxo alcohols are particularly suitable. Accordingly, the sulfation products of primary fatty alcohols with linear dodecyl, tetradecyl, hexadecyl or octadecyl radicals and mixtures thereof are particularly useful.
• alkyl sulfates contain a tallow alkyl radical, that is to say mixtures with essentially hexadecyl and octadecyl radicals.
• the alkyl sulfates can be prepared in a known manner by reacting the corresponding alcohol component with a conventional sulfating reagent, in particular sulfur trioxide or chlorosulfonic acid, and then neutralizing with alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium bases.
• a conventional sulfating reagent in particular sulfur trioxide or chlorosulfonic acid
• the sulfated alkoxylation products of the alcohols mentioned, so-called ether sulfates can be present in the compositions.
• Such ether sulfates preferably contain 2 to 30, in particular 4 to 10, EO per molecule.
• Preferred synthetic anionic surfactants are alkylbenzenesulfonates and / or alkylsulfates.
• the foam regulator which is solid, stable at room temperature and stable to shear can be selected, for example, from polysiloxane-silica mixtures, the fine-particle silica contained therein preferably being silanated.
• the polysiloxanes can consist of both linear compounds and crosslinked polysiloxane resins and mixtures thereof.
• Further defoamers are paraffin hydrocarbons, in particular microparaffins and paraffin waxes, the melting point of which is above 40 ° C, saturated fatty acids or soaps with in particular 20 to 22 C atoms, for example sodium behenate, and alkali metal salts of phosphoric acid mono- or dialkyl esters, in which the alkyl chains each have 12 have up to 22 carbon atoms.
• Sodium monoalkyl phosphate and / or dialkyl phosphate with C 16 to C 18 alkyl groups is particularly preferably used.
• the proportion of the foam regulators, based on the surfactant mixture used in the cleaning agent according to the invention, can preferably be 0.2% by weight to 2% by weight.
• this method is preferably used for heating that nonionic surfactant according to formula I or II before that in a smaller amount should be used, heated, if necessary, mixes the foam regulation, gives then the carboxylic acid or its alkali salt, then optionally that synthetic anionic surfactant and finally the non-submitted nonionic surfactant according to Formula I or II too.
• any other manufacturing method can also be chosen be that leads to the cleaning agent according to the invention.
• the cleaning agent is largely stable in storage and at room temperature up to 40 ° C, if necessary under shear, flowable, even if this Temperature the solids contained in the surfactant mixture do not wholly fully in the non-ionic surfactant are dissolved.
• the surfactant mixture is used for the production of optionally pseudoplastic, pasty detergents used, which consist of a liquid phase and a finely divided, solid phase dispersed therein.
• the liquid phase of such Agent is essentially from the nonionic contained in the surfactant mixture Surfactants formed according to formulas I and II.
• a paste-like cleaning agent according to the invention is essentially water-free, optionally pseudoplastic and contains in particular 19% by weight to 50% by weight of the surfactant mixture of compounds of the general formulas I and II, 1 to 10% by weight of at least one C 10 -C 22- carboxylic acid and / or its alkali salt and 49 wt .-% to 80 wt .-% additional solid powdery particulate constituents, it preferably having a viscosity in the range from 10,000 mPa ⁇ s to 750,000 mPa ⁇ s at 20 C and a shear rate of 0.025 s -1 , to be determined using a Carrimed® CS 100 plate viscometer with a grooved 2 cm plate (Cross Hatch Flat Plate), plate distance 1.5 mm.
• an agent according to the invention has a viscosity which is considerably lower, as a rule 2 to 15 times lower, at a shear rate of 0.2 s -1 and otherwise identical measuring conditions in the range from 5,000 mPa ⁇ s to 130,000 mPas, in particular from 13,000 mPas to 120,000 mPas, and at a shear rate of 2 s -1 and otherwise identical measuring conditions in the range from 400 mPas to 100,000 mPas, in particular from 400 mPas to 1,600 mPa ⁇ s.
• the agent has a viscosity (measured using Brookfield® rotary viscometer DV II, 25 ° C., spindle no. 7.5 min -1) of more than 200,000 mPa ⁇
• a viscosity measured using Brookfield® rotary viscometer DV II, 25 ° C., spindle no. 7.5 min -1
• Such high viscosity values which for example also include values of up to about 300,000 mPa ⁇ s, up to about 450,000 mPa ⁇ s, up to about 550,000 mPa ⁇ s or up to about 650,000 mPa ⁇ s , can be advantageous, for example, for use as a hand washing paste.
• the cleaning agent as well as the surfactant mixture used to produce it, is essentially free of water and organic solvents.
• essentially free of water is understood to mean a state in which the content of liquid, that is water not present in the form of hydrated water and constitutional water 2% by weight, preferably less than 1% by weight and in particular less than 0.5% by weight. Higher water contents are disadvantageous because they disproportionately affect the viscosity of the agent increase and in particular reduce its stability.
• Organic solvents which are commonly used in liquid detergents low-molecular and low-boiling alcohols and ether alcohols used, as well as hydrotropic compounds, optionally to improve the cold behavior of the cleaning agent in small amounts (up to a maximum of about 4% by weight) included in the detergent.
• the content is preferably less.
• the detergent contains a solid phase that is homogeneous in the liquid surfactant phase is dispersed, and which other cleaning components, if any, and optionally contains auxiliaries.
• these other cleaning ingredients primarily include scaffolding substances such as washing alkalis and sequestering agents.
• the powdery, water soluble component (the solid phase) of the Detergent according to the invention should be finely divided, with an average grain size in the range from 5 ⁇ m to 100 ⁇ m, with at most 10% of the particles having a grain size of more than 150 ⁇ m.
• an average grain size of the particles forming the solid phase is 10 ⁇ m to 80 ⁇ m and in particular 10 ⁇ m to 60 ⁇ m, the maximum grain size below 200 ⁇ m, is in particular less than 150 microns.
• the average grain size relates to the volume distribution of the particles, which are known by known methods (for example by means of Coulter Counter) can be determined.
• a water-soluble sentence selected from the group is generally used as the solid phase the chlorides, carbonates, hydrogen carbonates, sulfates, phosphates, borates or silicates used. These are preferably alkali metal salts, particularly preferably around the salts of sodium and / or potassium.
• washing alkali is preferably contained in the solid phase of the agent according to the invention.
• Washing alkali is amorphous alkali silicate, in particular sodium metasilicate with the composition Na 2 O: SiO 2 of 1: 0.8 to 1: 1.3, preferably 1: 1, which is used in anhydrous form.
• anhydrous alkali carbonate is also suitable, which, however, requires larger proportions of the liquid phase due to absorption processes and is therefore less preferred.
• the proportion of silicate in the cleaning agent can be 35% by weight to 70% by weight, preferably 40% by weight to 65% by weight and in particular 45% by weight to 55% by weight.
• Alkali carbonate is present at most up to 30% by weight, preferably at most up to 20% by weight and preferably at most up to 10% by weight.
• Suitable sequestrants are those from the class of aminopolycarboxylic acids and polyphosphonic acids.
• About the aminopolycarboxylic acids include nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid as well as their higher homologues.
• Suitable polyphosphonic acids are 1-hydroxyethane-1,1-diphosphonic acid, Aminotri- (methylenephosphonic acid), ethylenediaminetetra- (methylenephosphonic acid) and their higher homologues, such as diethylenetetraminetetra (methylenephosphonic acid).
• the aforementioned acids usually come in the form of their alkali salts, especially the sodium or potassium salts for use.
• Sodium nitrilotriacetate is preferred in proportions up to 10% by weight, preferably 2% by weight to 6% by weight, based on the detergent used.
• Suitable sequestrants also include monomeric polycarboxylic acids or hydroxypolycarboxylic acids, especially in the form of the alkali salts, for example Sodium citrate and / or sodium gluconate.
• the preferred sequestering agents include homopolymers and / or copolymeric carboxylic acids or their alkali salts, the sodium or potassium salts are preferred.
• Polymeric carboxylates have proven particularly suitable polymeric carboxylic acids, with a molecular weight of at least 350, in Form of their water-soluble salts, in particular in the form of the sodium and / or Potassium salts, such as oxidized polysaccharides according to WO-A 93/08251, Polyacrylates, polyhydroxyacrylates, polymethacrylates, polymaleates and in particular Copolymers of acrylic acid with maleic acid or maleic anhydride, preferably those of 50 to 70% acrylic acid and 50 to 10% maleic acid, such as those are characterized in EP-A 022 551.
• the relative molecular weight of the homopolymers is generally between 1000 and 100000, that of the copolymers between 2000 and 200,000, preferably 50,000 to 120,000, based on free acid.
• a particularly preferred acrylic acid-maleic acid copolymer has a relative Molecular mass from 50,000 to 100,000.
• Suitable, although less preferred, compounds of this class are copolymers acrylic acid or methacrylic acid with vinyl ethers, such as vinyl methyl ethers, vinyl esters, Ethylene, propylene and styrene, in which the proportion of acid is at least 50% by weight is.
• Terpolymers which contain two carboxylic acids and / or their salts as monomers and vinyl alcohol and / or a vinyl alcohol derivative or a carbohydrate as monomers can also be used as polymeric carboxylates or carboxylic acids.
• the first acidic monomer or its set is derived from a monoethylenically unsaturated C 3 -C 8 carboxylic acid and preferably from a C 3 -C 4 monocarboxylic acid, in particular from (meth) acrylic acid.
• the second acidic monomer or its set can be a derivative of a C 4 -C 8 dicarboxylic acid, preferably a C 4 -C 8 dicarboxylic acid, maleic acid being preferred.
• the third monomeric unit is formed from vinyl alcohol and / or preferably an esterified vinyl alcohol.
• Vinyl alcohol derivatives which are an ester of short-chain carboxylic acids, for example of C 1 -C 4 -carboxylic acids, with vinyl alcohol are particularly preferred.
• Preferred terpolymers contain 60 to 95% by weight, in particular 70 to 90% by weight of (meth) acrylic acid or (meth) acrylate, particularly preferably acrylic acid or acrylate, and maleic acid or maleate and 5 to 40% by weight. %, preferably 10 to 30% by weight of vinyl alcohol and / or vinyl acetate.
• the second acidic monomer or its set can also be a derivative of an allylsulfonic acid which is in the 2-position with an alkyl radical, preferably with a C 1 -C 4 -alkyl radical, or an aromatic radical which is preferably derived from benzene or benzene derivatives derives, is substituted.
• Preferred terpolymers contain 40 to 60% by weight, in particular 45 to 55 % By weight of (meth) acrylic acid or (meth) acrylate, particularly preferably acrylic acid or Acrylate, 10 to 30% by weight, preferably 15 to 25% by weight of methallylsulfonic acid or Methallylsulfonate and as a third monomer 15 to 40 wt .-%, preferably 20 to 40 % By weight of a carbohydrate.
• This carbohydrate can be a mono-, Be di-, oligo- or polysaccharide, with mono-, di- or oligosaccharides preferred are, sucrose is particularly preferred.
• terpolymers used can be according to the known and Establish usual procedures. Terpolymers are also preferably used which: either completely or at least partially, in particular to more than 50% are neutralized to the carboxyl groups present. Particularly preferred Terpolymers are produced by a process which is described in DE-A 42 21 381 and DE-A 43 00 772 is described.
• polyacetal carboxylic acids such as those described in US-A 4 144 226 and US-A 4 146 495 and by polymerization of esters of glycolic acid, introduction of stable terminal end groups and saponification to that Sodium or potassium salts can be obtained.
• polymeric acids that by polymerization of acrolein and disproportionation of the polymer Canizzaro can be obtained using strong alkalis. You are essentially out Acrylic acid units and vinyl alcohol units or acrolein units built up.
• the proportion of organic, carboxyl-containing structural substances in the invention pasty detergent can be up to 10% by weight, preferably 1% by weight to 7.5% by weight and in particular 2% by weight to 5% by weight of the Polyphosphonic acids up to 3 wt .-%, preferably 0.05 wt .-% to 1.5 wt .-% and in particular 0.1 to 1 wt .-%. These substances mentioned are used in anhydrous form.
• Crystalline alkali silicates and finely divided alkali alumosilicates in particular zeolites of the NaA type, can also be regarded as useful sequestering agents in the context of the present invention.
• Suitable zeolites have a calcium binding capacity in the range from 100 to 200 mg CaO / g (according to the information in DE-C 24 12 837). Their particle size is usually in the range from 1 ⁇ m to 10 ⁇ m. They are used in dry form. The water contained in bound form in the zeolites does not interfere in the present case.
• Such crystalline layered silicates are described, for example, in EP-A 0 164 514.
• both ⁇ - and ⁇ -sodium disilicate Na 2 Si 2 O 5 .yH 2 O are preferred, wherein ⁇ -sodium disilicate can be obtained, for example, by the process described in WO-A 91/08171.
• Usable crystalline silicates are commercially available under the names SKS-6 (manufacturer Hoechst) and Nabion® 15 (manufacturer Rhône-Poulenc).
• the content of inorganic builders in the paste can be up to 35% by weight, preferably up to 25% by weight and in particular 10% by weight to 25% by weight.
• the cleaning agents according to the invention are preferably phosphate-free. If a Phosphate content is ecologically harmless (for example with a phosphate eliminating Waste water purification), polymeric alkali phosphates, such as sodium tripolyphosphate, to be present. Their proportion can be up to 20% by weight, based on the total means, the proportion of the other solids, for example the Alkali silicate and / or aluminosilicate, is reduced accordingly. Preferably the proportion of tripolyphosphate is at most 10% by weight.
• the cleaning agents according to the invention generally have a pH of about 7 to about 14.
• the pH value refers here Unless expressly stated otherwise, information on the pH value a 1% by weight solution of the detergent in water.
• cleaning agents can be used in the neutral to slightly alkaline pH range formulate.
• Such cleaning agents have a pH of, for example about 7 to about 10, preferably about 7.5 to about 9.5.
• the cleaning agents can also be used in the highly alkaline range, i.e. they can then have pH values of around 10 to about 14, preferably from about 11 to about 13.
• cleaning agents have a connection between pH value and cleaning performance, of course depending on the type of contamination to be removed. To remove stubborn dirt, it is therefore advantageous if the cleaning agent has a high pH.
• the skin tolerance of the cleaning agent must also be taken into account.
• Cleaning agents according to the invention with a low pH in the neutral to slightly alkaline range, as stated above, are therefore particularly suitable for use as skin-compatible hand washing pastes.
• the cleaning agents according to the invention are preferably free from graying inhibitors, optical brighteners and bleaching agents, since these do not contribute to the cleaning action in cleaning agents.
• dyes and fragrances in the cleaning agent according to the invention available.
• fragrances which are generally liquid, go this into the liquid phase. Because of their small amount, however, they are on the Flow behavior of the cleaning agents without any noteworthy influence.
• the cleaning agents according to the invention are preferably produced in this way before that to the submitted at temperatures from room temperature to 40 ° C.
• the order in which the finely divided solid components are mixed is included largely arbitrary, but the alkali silicate is preferably used as the component which is preferably the largest proportion of the solid phase, last added. It is also possible to add the finely divided main component in batches, that is, the addition of part of the solid phase alternating with other solid phases Components.
• the resulting paste preferably in a grinding device, for example a colloid mill, to the grain size specified for the solid phase, if used finely divided solids did not originally have the desired grain sizes. It is then expedient to use a further stirred kettle final mixing of the ground solid components with the liquid Phase carried out, in particular also thermally sensitive minimum components, such as dyes or fragrances, are incorporated into the cleaning agent can.
• a grinding device for example a colloid mill
• a preferred embodiment of the method according to the invention consists in 20 parts by weight to 45 parts by weight of a flowable surfactant mixture, with 40 parts by weight up to 65 parts by weight of solid, powdered alkali silicate and 2 parts by weight up to 10 parts by weight solid polymeric polycarboxylate, and with up to 5 parts by weight, in particular if this is missing in the surfactant mixture, 1 part by weight to 3.5 parts by weight, synthetic mix anionic surfactant.
• the cleaning agents according to the invention are produced directly by the the shear forces acting are flowable and pumpable and can be applied without problems
• Storage containers are filled. These storage containers are because the Cleaning agents according to the invention without the action of shear forces relatively quickly become viscous that they lose their flowability and are no longer pumped can, for example, around shipping containers, in particular with rigid outer walls, for example barrels or barrels in which the product is to the end user or to a processing unit is delivered. It is natural too possible to fill the detergent directly into smaller portioning units, for example in buckets, tubes or cans.
• a surfactant mixture ( G1 ) was obtained which was flowable and pumpable at room temperature and could be stored for several months without changing its properties, in particular its flowability.
• G1 surfactant mixture (parts by weight) ethoxylated fatty alcohol 20th ethoxylated / propoxylated fatty alcohol 10th Fatty acid sodium salt 1.5 Alkyl benzene sulfonate 2nd
• the agent After a storage period of 10 days, the agent had a viscosity (measured at 25 ° C. with a Brookfield ® rotary viscometer DV-II with spindle No. 7 at 5 revolutions per minute) of 200,000 mPa ⁇ s, under otherwise identical conditions at 50 revolutions per minute from 70,000 mPa ⁇ s. These viscosity values of the paste did not change significantly when stored for 3 months. No separation or phase separation was also observed during this period.
• a walnut-sized amount of cleaning agent R1 was taken up with a dry cloth and applied to two particularly dirty surfaces.
• surface 1 was a concrete floor with clearly visible traces of tire wear chosen from forklift tires
• surface 2 was a high-gloss lacquer surface, which was dirty with a solvent-based felt pen.
• the cleaning agent according to the invention with the rag was on both surfaces triturated under pressure and then rinsed with water.
• the treated like this Surface 1 was free of tire marks.
• Surface 2 no longer had traces of felt pen on. There was no scratching on the surface that was detergent rinsed without residue.

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Citations (7)

• 1997
  • 1997-05-30 DE DE1997122809 patent/DE19722809A1/de not_active Withdrawn
• 1998
  • 1998-05-22 EP EP98109338A patent/EP0881281A3/fr not_active Withdrawn

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