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EP3156475B1 - Concentré de nettoyage liquide - Google Patents

Concentré de nettoyage liquide Download PDF

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Publication number
EP3156475B1
EP3156475B1 EP15190193.1A EP15190193A EP3156475B1 EP 3156475 B1 EP3156475 B1 EP 3156475B1 EP 15190193 A EP15190193 A EP 15190193A EP 3156475 B1 EP3156475 B1 EP 3156475B1
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EP
European Patent Office
Prior art keywords
weight
metal hydroxide
detergent concentrate
dispersing agent
suspension
Prior art date
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EP15190193.1A
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German (de)
English (en)
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EP3156475A1 (fr
EP3156475B2 (fr
Inventor
Hans Georg Hagleitner
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to SI201530378T priority Critical patent/SI3156475T1/sl
Priority to FIEP15190193.1T priority patent/FI3156475T4/fi
Priority to PT15190193T priority patent/PT3156475T/pt
Priority to RS20181018A priority patent/RS57613B1/sr
Priority to ES15190193T priority patent/ES2685655T5/es
Priority to PL15190193.1T priority patent/PL3156475T5/pl
Priority to TR2018/12405T priority patent/TR201812405T4/tr
Priority to HUE15190193A priority patent/HUE038978T2/hu
Priority to EP15190193.1A priority patent/EP3156475B2/fr
Priority to AU2016336915A priority patent/AU2016336915B2/en
Priority to EA201890976A priority patent/EA201890976A1/ru
Priority to BR112018007204-4A priority patent/BR112018007204B1/pt
Priority to CA3001652A priority patent/CA3001652C/fr
Priority to CN201680060556.7A priority patent/CN108350398B/zh
Priority to PCT/EP2016/074744 priority patent/WO2017064266A1/fr
Priority to MX2018004608A priority patent/MX382627B/es
Priority to US15/768,770 priority patent/US20180305643A1/en
Publication of EP3156475A1 publication Critical patent/EP3156475A1/fr
Priority to ZA2018/02403A priority patent/ZA201802403B/en
Priority to CL2018000964A priority patent/CL2018000964A1/es
Priority to SA518391361A priority patent/SA518391361B1/ar
Priority to CONC2018/0004021A priority patent/CO2018004021A2/es
Priority to IL258739A priority patent/IL258739B/en
Publication of EP3156475B1 publication Critical patent/EP3156475B1/fr
Priority to HRP20181256TT priority patent/HRP20181256T1/hr
Priority to US18/200,401 priority patent/US20230313071A1/en
Publication of EP3156475B2 publication Critical patent/EP3156475B2/fr
Application granted granted Critical
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0094—Process for making liquid detergent compositions, e.g. slurries, pastes or gels
    • 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
    • C11D3/044—Hydroxides or bases
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/364—Organic compounds containing phosphorus containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/06—Hydroxides
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3245—Aminoacids
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/36—Organic compounds containing phosphorus

Definitions

  • the invention relates to a liquid cleaning concentrate comprising at least one alkali metal hydroxide.
  • the invention further relates to a process for the preparation of a liquid cleaning concentrate comprising alkali metal hydroxide.
  • alkaline detergents are preferably used.
  • Liquid detergents based on hydroxides and complexing agents are known from the prior art and have advantages over powdered formulations. On the one hand there is no dust and on the other hand, the handling is easier when dosing with pumps.
  • Liquid cleaning concentrates comprising alkali metal hydroxide are, for example, in DE 199 06 660 A1 described, with a water content of 53- 80 wt .-% is called.
  • a high water content in liquid cleaning concentrates is detrimental to the stability of the concentrate and significantly increases the required volume of cleaning concentrate, which is accompanied by additional containers.
  • highly concentrated cleaning concentrates with a low volume are preferred for storage and transport as well as for environmental reasons.
  • Non-aqueous liquid cleaning concentrates as in EP 1 181 346 described are a strategy; however, such compositions are associated with lower detergency or handling of hazardous or environmentally hazardous chemicals.
  • WO 96/27653 A1 discloses a paste-form detergent having a viscosity of over 15,000 mPa * s, which can not flow out of a container without the action of shearing forces.
  • Cleaning concentrates are dosed industrially with dosing machines and automatically with water to the desired final concentration in the ready-to-use detergent diluted.
  • peristaltic pumps for metering the cleaning concentrate are used, these peristaltic pumps can dose only liquid cleaning concentrates. Creamy or pasty cleaning concentrates are not suitable for use in automatic dosing machines due to their high viscosity - in the worst case, the peristaltic pump or dosing machine becomes clogged and destroyed.
  • Object of the present invention is therefore to provide a highly concentrated, but still liquid cleaning concentrate based on alkali metal hydroxide, which can be dosed and diluted with a dosing.
  • this suspension has a viscosity of at most 6500 mPa ⁇ s, measured on the basis of ISO 2555: 1989 at 20 ° C at a speed of 5 rpm.
  • the measurement may e.g. done with a Brookfield viscometer.
  • suspensions described herein are stable suspensions.
  • the cleaning concentrate has no further ingredients.
  • the present invention has therefore also set itself the task of providing a method for producing a stable suspension.
  • “adding a portion” means that only a part and not the entire amount of the respective ingredient is added to the respective step.
  • a stable suspension is possible - ie a suspension that does not segregate in the storage or use and in which there is no precipitate formation or in which no solid settles.
  • This is the first time the production of a stable suspension comprising large amounts of alkali metal hydroxide possible, and it is - in contrast to the cream-shaped Composition according to DE 100 02 710 A1 - A liquid, ie pumpable and metered cleaning concentrate produced.
  • a cleaning agent is a ready-to-use preparation for cleaning and is a mixture of a cleaning concentrate with water.
  • the cleaning agent is preferably a ready-to-use preparation for cleaning dishes.
  • a cleaning concentrate is a composition in which the ingredients - with the exception of the diluent water - are in a more concentrated form than in the ready-to-use detergent.
  • a stable suspension is understood here to mean a suspension which does not segregate during storage and use and in which no precipitate formation occurs.
  • the stability can be measured, for example, by measuring the viscosity and density, which may change only insignificantly over time.
  • the stability can also be determined by climate change test or storage over a defined period of time and subsequent optical control (separation into two or more phases).
  • One way of measuring is to check whether the viscosity and density after 30 days of storage, ie without stirring or moving the suspension at 20 ° C by sedimentation by less than 5%.
  • alkali metal hydroxide is meant the hydroxides of at least one alkali metal. It may therefore also be a mixture of several alkali metal hydroxides. Preference is given to using sodium hydroxide (NaOH) and potassium hydroxide (KOH).
  • a dispersant is an additive which improves the optimal mixing of at least two immiscible substances. Dispersants also aim at an improved cleaning performance of the cleaning agent. Dispersants may also be understood as meaning a mixture of two or more dispersants. A dispersant in the cleaner also helps to reduce old deposits.
  • a complexing agent or chelating agent is an additive which forms chelate complexes with metal ions. This undesirable properties of certain metal ions are masked. In the purification process, especially divalent metal ions are undesirable, especially alkaline earth metal ions such as Ca 2+ and Mg 2+ . Therefore, the complexing agents are preferably those which form complexes with alkaline earth metal ions.
  • Surfactants are substances which reduce the surface tension of a liquid or the interfacial tension between two phases and thus promote the formation of dispersions. They can also act as solubilizers. There may also be a mixture of two or more surfactants.
  • fatty alcohol ethoxylates show particularly good cleaning performance.
  • Defoamers may be selected, for example, from the group of paraffin oils, silicone oils or mixtures thereof.
  • An example of a possible paraffin oil is white oil, techn. (Fa. Bussetti); an example of silicone oil is silicone oil 100 (Bussetti).
  • the content of antifoaming agent may, for example, be 0 to 5% by weight.
  • Thickeners may be selected, for example, from the group of 1,2,3-propanetriol, propan-2-ol, xanthan gum (eg Keltrol types, Fa. CP Kelco).
  • the content of thickener may be for example 0 to 5 wt .-%.
  • Purification enhancers may be, for example, substances which have a basic action, ie have a pH-increasing effect, and may be, for example, monoethanolamine or triethanolamine.
  • Other cleaning enhancers include polymers or alkaline compounds such as Mirapol SURF S (a mixture based on Na 2 CO 3 , Rhodia), Polyquart Ampho 149 (BASF).
  • the content of cleaning enhancer may be, for example, 0 to 5% by weight.
  • Suspending agents may be selected, for example, from the group polyvinyl alcohol or polyvinylpyrrolidone.
  • the content of suspending agent may be, for example, 0 to 2% by weight.
  • no suspending agent is provided because it has been shown that increasing amounts of suspending agent cause segregation and sedimentation.
  • Threshold substances are compounds that prevent or at least greatly retard the formation of precipitates at very low (substoichiometric) concentrations. In a supersaturated solution, the formation of an insoluble precipitate is prevented by swelling substances block the surface of the first forming microcrystals by adsorption, so that no larger crystals can form by addition.
  • suitable swelling substances in the cleaning industry are compounds from the group of low molecular weight phosphonates and higher molecular weight complexing agents (eg polycarboxylates).
  • a particularly suitable threshold substance was Hydrodis WP 40 with the main constituent of an oligomeric phosphonic acid. Although it is known that many threshold active substances have solubility problems in aqueous solutions with high calcium concentrations (called calcium sensitivity), no Ca-sensitive zone was found when adding oligomeric phosphonic acid in the form of Hydrodis WP 40. The addition of Hydrodis WP 40 favors that the cleaning concentrate remains stable and has very good calcium binding capacity and good cleaning performance.
  • the content of the threshold substance is preferably from 2 to 5% by weight.
  • a mixture of a first and a second complexing agent is provided.
  • a first complexing agent may e.g. be selected from the group of aminocarboxylic acids and a second complexing agent from the group of aminophosphonic acids.
  • step a) a mixture of an aqueous solution of the first complexing agent (such as an aminocarboxylic acid, more preferably methylglycinediacetic acid or a salt thereof), and an aqueous solution of a second complexing agent (such as an aminophosphonic acid, more preferably diethylenetriaminepentamethylenephosphonic acid or a salt thereof).
  • the first complexing agent such as an aminocarboxylic acid, more preferably methylglycinediacetic acid or a salt thereof
  • a second complexing agent such as an aminophosphonic acid, more preferably diethylenetriaminepentamethylenephosphonic acid or a salt thereof.
  • step b) auxiliaries can be added.
  • Step d) Addition of a portion of alkali metal hydroxide as aqueous solution:
  • step d) a first addition of alkali metal hydroxide takes place with stirring, namely as an aqueous solution. Based on the total amount of alkali metal hydroxide, preferably less than half, more preferably less than one third, of the final amount of alkali metal hydroxide is added in this step.
  • Suitable aqueous solutions are preferably those of NaOH or KOH in question, wherein it makes no difference whether a NaOH solution or a KOH solution is used or whether each a NaOH solution and a KOH solution are added separately or whether a NaOH / KOH mixture is added. All combinations of these are also possible.
  • step e a surfactant is added with stirring.
  • step f) a further portion of alkali metal hydroxide is added as a solid.
  • the addition preferably takes place by stirring in NaOH and / or KOH pellets.
  • step g the addition of a further portion of dispersant, which is added with stirring.
  • step h) the still missing amount of alkali metal hydroxide is added slowly with stirring, wherein at least a part, preferably all the still missing amount of alkali metal hydroxide, is added as a solid.
  • the addition preferably takes place by stirring in NaOH and / or KOH pellets.
  • the aqueous phase may no longer reach a temperature above 40 ° C.
  • steps d) to h) must be carried out at temperatures ranging between 15 ° C and at most 40 ° C in order to achieve a stable suspension with the above-mentioned properties.
  • temperatures ranging between 15 ° C and at most 40 ° C there was no influence of the temperature on the stability and viscosity of the suspension.
  • the solubility of NaOH and / or KOH increases.
  • no stable, metered suspension could be achieved because the cleaning concentrate had a pasty consistency after cooling.
  • the suspension produced according to the invention irreversibly thickened on heating to temperatures above 60 ° C after cooling, which is due to the adverse effect on the suspension.
  • the temperature control may e.g. can be achieved by cooling (for example with a cooling sleeve) or by correspondingly slow process control.
  • step d) it is e.g. It is helpful to add a ready-to-use solution of alkali metal hydroxide to avoid any significant increase in temperature.
  • an active external cooling e.g., cooling collar
  • an active external cooling e.g., cooling collar
  • a stirrer for example an anchor stirrer, may be provided.
  • a disperser is additionally provided in order to accelerate the suspension formation.
  • KOH is more expensive compared to NaOH.
  • the cleaning performance of a pure KOH solution for dishwashing is (slightly) worse than the cleaning performance of a pure NaOH solution.
  • KOH is known to be more reactive with CO 2 from the air than NaOH and carbonates are formed in the solution ("crusting").
  • pure KOH has a stronger exotherm in the dissolution process (enthalpy of enthalpy - 57.1 kJ / mol) compared to NaOH (enthalpy of dissolution - 44.5 kJ / mol), which would fundamentally discourage the skilled artisan from using KOH when a low Temperature in the aqueous phase is observed.
  • composition of the liquid cleaning concentrate which is a suspension
  • the following could be found:
  • Dishwashing detergents show the best cleaning performance at high alkali metal hydroxide concentrations.
  • an admixture of up to 46 wt .-% alkali metal hydroxide was possible, with a stable suspension was achieved, the viscosity of which maintained the above range.
  • NaOH 22 to 46% by weight
  • KOH 22 to 46% by weight
  • mixtures thereof NaOH: 25 to 46% by weight-x% by weight; KOH: x % By weight
  • the highest stability of the suspension was achieved with a mixture of NaOH and KOH in which the content of KOH is between 5 and 10% by weight.
  • a particularly good cleaning action of the cleaning agent was achieved if at least one dispersant and at least one complexing agent are present in the cleaning concentrate.
  • the dispersant comprises a polymeric dispersant.
  • a preferred cleaning concentrate comprises from 1 to 10% by weight of polymeric dispersant.
  • the complexing agent has an organic amino function, preferably selected from the group comprising aminocarboxylic acids, aminophosphonic acids or a combination thereof. In this way, a liquid cleaning concentrate could be generated particularly advantageous.
  • the polymeric dispersant is a polycarboxylic acid, preferably polyacrylic acid or a derivative thereof.
  • the proportion of surfactants must not be too high because of the foam behavior and the stability, as well as for cost and environmental reasons. Preference is given to 2 wt .-%, more preferably 0.5 to 1.5 wt .-% are used. As such, known surfactants for dishwashing detergents can be used. In one embodiment, however, it has proved to be advantageous if the surfactant is a nonionic surfactant, preferably a fatty alcohol alkoxylate or a derivative thereof. A particularly suitable surfactant is fatty alcohol alkoxylate 8 (Plurafac LF 400, BASF).
  • auxiliaries 0 to 5% by weight of auxiliaries:
  • the excipients can be made to the comments from above.
  • Monoethanolamine is particularly preferably added.
  • the water content is preferably 28 to 39 wt .-%, wherein concentrations below 28 wt .-% no longer had the desired viscosities. Although concentrations above 39% by weight can be produced as a suspension, the advantage over a solution is then no longer very great.
  • the liquid cleaning concentrate is free of ethanol, glycerol and other short-chain alcohols (C 1 to C 5 alcohols), since it has been shown that such alcohols increase the viscosity, ie act as a thickener. It has also been found that introduction of NaOH solutions into alcohols, polyols or glycerol with the addition of solid NaOH leads to uncontrollable curing and inhomogeneous thickening.
  • the cleaning concentrate has no further constituents than those mentioned above.
  • the above-described liquid cleaning concentrate is a stable suspension and has a viscosity such that it can be pumped and thus metered in a metering system. Therefore, it is preferably provided that the viscosity of the cleaning concentrate has a maximum of 6500 mPa ⁇ s, measured on the basis of ISO 2555: 1989 at 20 ° C at a speed of 5 rpm.
  • Example 1 Inventive Example ⁇ / b> ingredient Proportion of raw material 1 [% by weight] Proportion of ingredient 2 [wt .-%] function step Alanine N, N-carboxymethyl trisodium salt 3) in aqueous solution (40% by weight) 27.0 10.8 K a) Aminophosphonic acid salt 4) in aqueous solution (42% by weight) 10.0 4.2 K Monoethanolamine 2.2 2.2 H b) Polymeric phosphonic acid 5) ; Hydrochloric acid; in aqueous solution (60% by weight) 5.0 3.0 K c) Sodium hydroxide solution (50% by weight) 22.3 11.15 XOH d) Isotridecanol ethoxylate 6) 1.5 1.5 T e) potassium hydroxide 10.0 10.0 XOH f) Polyacrylic acid
  • the total content of water is 36.5 wt .-%. During the manufacturing process, cooling took place so that the maximum temperature of 35 ° C was not exceeded.
  • the viscosity of the suspension was: Viscosity (mPa ⁇ s): 4500 mPa ⁇ s, measured in accordance with ISO 2555: 1989 at 20 ° C and 5 rpm ⁇ b>
  • Example 2 Inventive Example ⁇ / b> ingredient Proportion of raw material 1 [% by weight] Content of ingredient 2 [% by weight] function step Alanine N, N-carboxymethyl trisodium salt 3) in aqueous solution (40% by weight) 27.0 10.8 K a) Aminophosphonic acid salt 4) in aqueous solution (42% by weight) 10.0 4.2 K Monoethanolamine 2.2 2.2 H b) Polymeric phosphonic acid 5) ; Hydrochloric acid; in aqueous solution (60% by weight) 5.0 3.0 K c) Sodium hydroxide solution (50% by weight
  • the total water content is 37.4 wt .-%. During the manufacturing process, cooling took place so that the maximum temperature of 35 ° C was not exceeded.
  • the viscosity of the suspension was: Viscosity (mPa ⁇ s) 6000 mPa ⁇ s, measured in accordance with ISO 2555: 1989 at 20 ° C and 5 rpm ⁇ b>
  • Example 3 Inventive Example ⁇ / b> ingredient Proportion of raw material 1 [% by weight] Content of ingredient 2 [% by weight] function step Alanine N, N-carboxymethyl-trisodiumsalz 3) in aqueous solution (40 wt .-%) 27.0 10.8 K a) Aminophosphonic acid salt 4) in aqueous solution (42% by weight) 10.0 4.2 K Monoethanolamine 2.2 2.2 H b) Polymeric phosphonic acid 5) ; Hydrochloric acid; in aqueous solution (60% by weight) 5.0 3.0 K c) Sodium hydrox
  • the total water content is 37.4 wt .-%. During the manufacturing process, cooling took place so that the maximum temperature of 35 ° C was not exceeded.
  • the viscosity of the suspension was: Viscosity (mPa ⁇ s) 3800 mPa ⁇ s, 20 ° C measured on the basis of ISO 2555: 1989 at 20 ° C and 5 rpm ⁇ b> Comparative Example 1: ⁇ / b> ingredient Proportion of raw material 1 [% by weight] Content of ingredient 2 [% by weight] function step water 35.0 - LM 1 Polymeric phosphonic acid in aqueous solution (50% by weight) 3 10.0 5.0 K 2 glycerin 5.0 5.0 K 3 potassium hydroxide 10.0 10.0 XOH 4 Polyacrylic acid, sodium salt 4 20.0 20.0 K 5 sodium hydroxide 20.0 20.0 XOH 6 total 100.0 60.0 1) Ingredient including water 2) Pure ingredient (free of water) 3) Hydrodis ADW 3814 / N 4) Sokalan PA 25
  • the preparation is free of surfactants.
  • the recipe proved to be too viscous in the production without temperature control. With temperature control in the production process (maximum temperature of 35 ° C), the viscosity of the suspension was still in the range 6500 mPa ⁇ s. The complete absence of surfactants, however, proved to be negative for the viscosity. An addition of 0.5% by weight showed a reduction in viscosity and increase in stability.
  • a reduction of the water content in water-based cleaning concentrates usually leads to an increase in the viscosity.
  • DE 100 02 710 A1 is described a cream-shaped cleaning concentrate with a water content of 32.5%.
  • the property as a cream or paste is, however, unfavorable for use in dosing machines due to the high viscosity.
  • Such a cleaning agent could not be dosed with a peristaltic pump in the dosing unit.
  • a cleaning concentrate prepared by the process according to the invention has the cream or paste-like cleaning agents according to DE 100 02 710 A1 two differences: first, in DE 100 02 710 A1 a homogeneous mixture without particles, ie no suspension produced. Second, the cleaning concentrate of DE 100 02 710 A1 a significantly higher viscosity, resulting in the poor dosability.
  • Table 1 below shows a cleaning concentrate according to the invention and the cleaning concentrate according to DE 100 02 710 A1 compared.
  • Table 1 Comparison of the viscosity of cleaning concentrates: Composition Example 1 Example of DE 100 02 710 A1 Viscosity (mPa ⁇ s) * 2671 +/- 35 20,000 to 90,000 (Suspension) (Creamy paste) *) Measuring conditions as in DE 100 02 710 A1 : Brookfield viscometer based on ISO 2555: 1989.
  • Example 1 Viscosity, mPa ⁇ s Measurement 1 2651 Measurement 2 2711 Measurement 3 2651
  • Example 3 The composition according to Example 3 was additionally prepared under different conditions, ie at different temperatures. The addition steps d) to h) were carried out in such a way that a temperature of 40 ° C. was not exceeded in the aqueous phase (see Table 2).
  • Table 2 Comparison of the viscosity - composition according to Example 3. Results: Viscosity (mPa ⁇ s) at 5 rpm, 20 ° C * Sample 1 2184 Sample 2 6360 Sample 3 2400 Sample 4 3030 *) Measurement conditions: Brookfield viscometer in accordance with ISO 2555: 1989th

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  • Chemical Kinetics & Catalysis (AREA)
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Claims (10)

  1. Concentré de nettoyage, comprenant
    (i) 22 à 46 % en poids d'hydroxyde de métal alcalin,
    (ii) 5 à 50 % en poids d'agent dispersant, d'agent complexant ou d'une combinaison de ceux-ci,
    (iii) 0 à 5 % en poids d'agent tensio-actif, et
    (iv) 0 à 5 % en poids d'adjuvants, et
    (v) 28 à 39 % en poids d'eau,
    le concentré de nettoyage étant une suspension.
  2. Concentré de nettoyage selon la revendication 1, caractérisé par une viscosité de la suspension de maximum 6500 mPa·s, mesurée suivant ISO 2555:1989 à 20°C à une vitesse de rotation de 5 tr/min.
  3. Concentré de nettoyage selon la revendication 1 ou 2, caractérisé en ce que l'hydroxyde de métal alcalin est de l'hydroxyde de sodium, de l'hydroxyde de potassium ou un mélange de ceux-ci.
  4. Concentré de nettoyage selon la revendication 3, caractérisé par
    - 20 à 41 % en poids d'hydroxyde de sodium et
    - 5 à 10 % en poids d'hydroxyde de potassium.
  5. Concentré de nettoyage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'agent dispersant comporte au moins un agent complexant et un agent dispersant polymère.
  6. Concentré de nettoyage selon la revendication 5, caractérisé par
    - 5 à 49 % en poids d'agent complexant et
    - 1 à 10 % en poids d'agent dispersant polymère.
  7. Concentré de nettoyage liquide selon la revendication 5 ou 6, caractérisé en ce que l'agent complexant présente une fonction amine organique, de préférence sélectionnée dans le groupe comprenant les acides aminocarboxyliques, les acides aminophosphoniques ou des combinaisons de ceux-ci.
  8. Concentré de nettoyage liquide selon l'une quelconque des revendications 4 à 7, caractérisé en ce que l'agent dispersant polymère est un acide polycarboxylique, de préférence un acide polyacrylique ou un dérivé de ceux-ci.
  9. Concentré de nettoyage liquide selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'adjuvant est la monoéthanolamine.
  10. Procédé de fabrication d'une suspension, comprenant
    (i) 22 à 46 % en poids d'hydroxyde de métal alcalin,
    (ii) 5 à 50 % en poids d'agent dispersant, d'agent complexant ou d'une combinaison de ceux-ci,
    (iii) 0 à 5 % en poids d'agent tensio-actif,
    (iv) 0 à 5 % en poids d'adjuvants et
    (v) 28 à 39 % en poids d'eau,
    le procédé comprenant les étapes :
    a) de fourniture d'une portion d'agent dispersant, d'agent complexant ou d'une combinaison de ceux-ci dans une solution aqueuse,
    b) le cas échéant d'ajout d'adjuvants,
    c) dans le cas de l'ajout d'adjuvants, immédiatement après, d'ajout d'une autre portion d'agents dispersants,
    d) d'ajout d'une portion d'hydroxyde de métal alcalin comme solution aqueuse,
    e) le cas échéant d'ajout d'un agent tensio-actif,
    f) d'ajout d'une portion d'hydroxyde de métal alcalin en tant que matière solide,
    g) d'ajout d'un agent dispersant,
    h) d'ajout d'une autre portion d'hydroxyde de métal alcalin,
    les étapes d'ajout étant réalisées par agitation et au moins les étapes d'ajout d) à h) étant réalisées de telle manière que, dans la phase aqueuse, une température de maximum 40°C, de préférence de maximum 35°C, est maintenue.
EP15190193.1A 2015-10-16 2015-10-16 Concentré de nettoyage liquide Active EP3156475B2 (fr)

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Application Number Priority Date Filing Date Title
SI201530378T SI3156475T1 (sl) 2015-10-16 2015-10-16 Tekoči koncentrat za čiščenje
FIEP15190193.1T FI3156475T4 (fi) 2015-10-16 2015-10-16 Nestemäinen pesuainetiiviste
PT15190193T PT3156475T (pt) 2015-10-16 2015-10-16 Concentrado de limpeza líquido
RS20181018A RS57613B1 (sr) 2015-10-16 2015-10-16 Koncentrat tečnog detergenta
ES15190193T ES2685655T5 (en) 2015-10-16 2015-10-16 Liquid cleaning concentrate
PL15190193.1T PL3156475T5 (pl) 2015-10-16 2015-10-16 Ciekły koncentrat czyszczący
TR2018/12405T TR201812405T4 (tr) 2015-10-16 2015-10-16 Sıvı deterjan konsantresi.
HUE15190193A HUE038978T2 (hu) 2015-10-16 2015-10-16 Folyékony tisztítószer koncentrátum
EP15190193.1A EP3156475B2 (fr) 2015-10-16 2015-10-16 Concentré de nettoyage liquide
CN201680060556.7A CN108350398B (zh) 2015-10-16 2016-10-14 液体清洁剂浓缩物
US15/768,770 US20180305643A1 (en) 2015-10-16 2016-10-14 Liquid cleaning concentrate
EA201890976A EA201890976A1 (ru) 2015-10-16 2016-10-14 Жидкий моющий концентрат
BR112018007204-4A BR112018007204B1 (pt) 2015-10-16 2016-10-14 Concentrado de limpeza líquido, e processo para produção de uma suspensão
CA3001652A CA3001652C (fr) 2015-10-16 2016-10-14 Concentre de nettoyage liquide
AU2016336915A AU2016336915B2 (en) 2015-10-16 2016-10-14 Liquid cleaning concentrate
PCT/EP2016/074744 WO2017064266A1 (fr) 2015-10-16 2016-10-14 Concentré de nettoyage liquide
MX2018004608A MX382627B (es) 2015-10-16 2016-10-14 Concentrado de detergente líquido.
ZA2018/02403A ZA201802403B (en) 2015-10-16 2018-04-12 Liquid detergent concentrate
CL2018000964A CL2018000964A1 (es) 2015-10-16 2018-04-13 Detergente líquido concentrado
SA518391361A SA518391361B1 (ar) 2015-10-16 2018-04-15 ركازة منظف سائل
CONC2018/0004021A CO2018004021A2 (es) 2015-10-16 2018-04-16 Concentrado limpiador líquido
IL258739A IL258739B (en) 2015-10-16 2018-04-16 Liquid cleaning concentrate
HRP20181256TT HRP20181256T1 (hr) 2015-10-16 2018-08-06 Tekući koncentrat za čišćenje
US18/200,401 US20230313071A1 (en) 2015-10-16 2023-05-22 Liquid detergent concentrate

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BR (1) BR112018007204B1 (fr)
CA (1) CA3001652C (fr)
CL (1) CL2018000964A1 (fr)
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IL (1) IL258739B (fr)
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PL (1) PL3156475T5 (fr)
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SA518391361B1 (ar) 2021-11-24
EP3156475A1 (fr) 2017-04-19
TR201812405T4 (tr) 2018-09-21
AU2016336915A1 (en) 2018-05-17
PL3156475T5 (pl) 2025-01-07
ZA201802403B (en) 2024-12-18
US20180305643A1 (en) 2018-10-25
PT3156475T (pt) 2018-10-19
FI3156475T4 (fi) 2024-10-07
RS57613B1 (sr) 2018-11-30
IL258739A (en) 2018-06-28
BR112018007204A2 (pt) 2018-10-16
AU2016336915B2 (en) 2021-09-16
CN108350398B (zh) 2021-03-16
CO2018004021A2 (es) 2018-07-19
CN108350398A (zh) 2018-07-31
ES2685655T5 (en) 2025-02-12
EP3156475B2 (fr) 2024-09-25
SI3156475T1 (sl) 2018-10-30
EA201890976A1 (ru) 2018-09-28
ES2685655T3 (es) 2018-10-10
MX2018004608A (es) 2018-09-19
PL3156475T3 (pl) 2018-11-30
IL258739B (en) 2021-12-01
CA3001652A1 (fr) 2017-04-20
MX382627B (es) 2025-03-13
HUE038978T2 (hu) 2018-12-28
WO2017064266A1 (fr) 2017-04-20
CL2018000964A1 (es) 2018-09-07
HRP20181256T1 (hr) 2018-10-05
BR112018007204B1 (pt) 2022-07-05
CA3001652C (fr) 2023-10-17

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