EP3538630B1 - Aqueous washing or cleaning agent compositions containing natural waxes as opacifying agents - Google Patents

Description

The present invention relates to aqueous detergent or cleaning agent compositions containing natural waxes as opacifying agents, the use of natural waxes as opacifying agents in aqueous detergent or cleaning agent compositions, and a process for the production of such compositions.

End consumer products in the area of cleaning hard and textile surfaces as well as human skin and hair, in particular aqueous detergent or cleaning agent compositions, usually contain surfactants as washing-active substances which, due to their surface-active properties, reduce interfacial tensions, so that impurities such as e.g Fats and oils can be emulsified and removed with the washing solution. In addition to the aforementioned main surface-active ingredients, a number of additives can also be used, which can also contribute to the washing or cleaning effect. Such additives include, for example, hydrotropes (solubilizers), solvents, enzymes, acids, alkalis or complexing agents. It is also possible to use auxiliaries which can influence the stability of detergent or cleaning agent compositions, such as pH regulators or buffer systems, antioxidants, UV filters, preservatives, rheological additives or electrolytes.

Finally, substances which primarily appeal to the human senses, such as fragrances or dyes, can also be used in aqueous detergent or cleaning agent compositions.

A special form of the product aesthetics of aqueous detergent or cleaning agent compositions lies in the degree of their translucency (light transmission). Depending on the technology used, light transmittance can range from completely transparent through partially translucent intermediate stages to completely opaque (impermeable to light). In addition, certain additional optical effects can also be achieved, such as pearlescence. Such techniques influencing light transmission can impart not only aesthetic but also functional properties to aqueous washing or cleaning agent compositions and, for example, serve to moisturize the skin.

A number of surface-active detergents and cleaning agents (so-called "rinse-off" products) and cleaning cosmetics such as liquid soaps, shower gels or foam baths and shampoos are known today, the translucency of which is clouded, for example milky-white in color. In the above-mentioned agents, this turbidity is now almost exclusively achieved by adding special plastic dispersions, in particular those based on styrene-acrylate copolymers (cf., for example, styrene/acrylate polymer with CAS RN 9010-92-8 ), wherein the plastic particles are in the form of solid particles, mostly with a particle size of about 170 nm and above. Since such styrene-acrylate copolymer particles are not biodegradable, it is now recommended not to use them in care products for reasons of water protection (see publication on the website of the German Federal Environment Agency of March 16, 2016: "Microplastics in Cosmetics - What is it?").

In terms of environmental compatibility, it is also advantageous if the other ingredients of aqueous washing or cleaning agents are also preferably biodegradable in sewage treatment plants and/or, such as known biodegradable anionic or nonionic surfactants, for example based on vegetable oils.

A further disadvantage of the aforementioned styrene-acrylate copolymers is that they tend to sediment in aqueous detergent or cleaning agent compositions, so that after some time in storage corresponding products often have a visually unacceptable sediment. The acceptance of a product affected by it is of course impaired by the end consumer as a result of the sedimentation described. This is particularly (but not only) noticeable when the styrene-acrylate copolymers are used in aqueous detergent or cleaning agent compositions which are highly diluted and/or which contain an increased concentration of electrolytes (such as inorganic dissociable salts), in particular of sodium carbonate. For the purposes of the present invention, an increased concentration of electrolytes is understood to mean a content of such electrolytes of 0.75% by weight or more, in particular a content of 1.0% by weight or more, in each case based on the total mass of one considered aqueous detergent or cleaning agent composition. Under a strong dilution or a heavily diluted aqueous detergent or cleaning agent composition (e.g. a water-thin composition) is understood in the context of the present invention as a composition whose dynamic viscosity is <100 mPa s, preferably <10 mPa s, each measured with a Brookfield rotational viscometer, spindle LV1 at 100 rpm and a temperature of 20°C.

In aqueous detergent or cleaning agent compositions which contain styrene-acrylate copolymers as an opacifying agent, in particular in those which are highly diluted and/or which have an increased concentration of electrolytes, approximately three to six Months already at a temperature of 23 ° C, but especially at elevated temperatures of about 40 ° C or in the range of 40 ° C to 60 ° C, quite often undesired sedimentation of the styrene-acrylate copolymer observed. On the other hand, it is generally assumed that detergent or cleaning agent compositions that survive the aforementioned storage at 40° C. or in the range from 40° C. to 60° C. without any noticeable loss of product quality, for example without any noticeable signs of sedimentation Real conditions (fluctuating temperatures due to the seasons and times of the day, etc.) can be stored for at least two years with the same quality. In addition, such a positively passed test of storage stability (at 40 °C or in the range from 40 °C to 60 °C) also indicates the suitability of the products for distribution in warmer climate zones.

In Scripture WO 03/033634A1 anionic surfactant-free low-viscosity opacifiers are described for use in surface-active household products which contain wax components, amphoteric surfactants, fatty acid partial glycerides, fatty acid polyglycol esters and, if appropriate, polyols in a specific weight ratio. Other auxiliaries or additives that can also occur include certain waxes.

In Scripture WO 92/11330 describes a process for the production of cleaning and care products, in which a wax emulsion containing alkyl glycoside as an emulsifier is mixed with the other components of such products.

In Scripture US2011/0172135 describes compositions containing nanowax particles intended for simultaneous washing and waxing of a motor vehicle.

In Scripture U.S. 5,496,493 an "Ultra mild personal cleansing bar containing smaller-sized particulate wax" is described.

The document U.S. 5,306,488 relates to a cosmetic composition for hair containing a wax microdispersion and a method of treating hair using the composition.

The document DE 100 34 619 A1 discloses anionic surfactant-free low-viscosity opacifiers and opacifier preparations based on wax bodies.

The document WO 99/01529 A1 specifies a process for producing intense white turbidity in aqueous surfactant preparations.

The document U.S. 2,519,062 relates to a lotion shampoo, particularly a cloudy shampoo liquid.

The company publication "Koster Keunen: Carnauba Milk - Natural (Wax#576B) Watertown, CT, USA 2015" describes an aqueous dispersion of carnauba wax for various purposes.

A primary object of the present invention was to provide cloudy aqueous detergent or cleaning agent compositions which, even after prolonged storage and even at elevated temperatures, have little or no tendency to sedimentation, based on the use of conventional plastic-based clouding agents completely or largely dispensed with and can preferably be combined with known, biodegradable anionic or nonionic surfactants. The invention should preferably provide the aforementioned cloudy aqueous washing or cleaning agent compositions which retain said advantageous properties even when highly diluted and/or in the presence of an increased electrolyte concentration, without tending to sedimentation, in particular due to precipitation of the clouding agent, and without the addition of further additives being necessary for this.

It was a specific further object of the present invention to provide a new use of biodegradable, preferably natural waxes as opacifiers in aqueous detergent or cleaning agent compositions.

A further object of the present invention was to provide a process for the production of cloudy aqueous detergent or cleaning agent compositions of the type specified above.

The invention is further described and/or defined in the appended claims. Embodiments and specific and/or preferred embodiments of the invention are described in more detail below. Unless stated otherwise, preferred aspects or embodiments of the invention can be combined with other aspects or embodiments of the invention, in particular with other preferred aspects or embodiments. The combination of preferred aspects or embodiments with one another in each case again results in preferred aspects or embodiments of the invention. embodiments, Aspects or properties which are described in connection with the present invention for the aqueous detergent or cleaning agent compositions according to the invention or are described as preferred also apply in each case correspondingly or mutatis mutandis to the uses or processes according to the invention.

If compositions, uses or methods are described in the following which "comprise" or "contain" specific embodiments, components or features in more detail, the corresponding variant of the compositions, uses or methods to be understood in a narrower scope should also be disclosed which "consists" of these specific embodiments, components or features.

It has now been found that the primary object is achieved by an aqueous detergent or cleaning agent composition provided according to the invention, containing a composition-clouding amount of particles of one wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and their Mixtures in which 85% by volume or more of the particles of these waxes have a particle size measured by laser diffraction of < 15 µm ("D85" value) as defined in the appended claims, the composition additionally comprising sodium carbonate. The particles of carnauba wax and montan wax contained in the compositions according to the invention can be used in any mixing ratio. However, preference is given to a composition according to the invention of the type described above, in which the amount of particles which opacifies the composition comprises carnauba wax or a mixture of carnauba wax with montan wax. Such a composition according to the invention or preferred according to the invention is particularly preferred, in which the amount of particles which opacifies the composition comprises only carnauba wax.

Carnauba wax (synonyms: carnauba wax, Brazil wax, E 903; registered under CAS RN 8015-86-9 in the "Coslng Database" of the European Commission for information on cosmetic substances and ingredients, which are included in the EU Cosmetics Regulation, for example No. 1223/2009) is a natural plant wax known per se, which can be obtained from the leaves of the Brazilian fan palm Copernicia prunifera or carnauba palm (Copernicia cerifera). The main ingredients are esters of wax acids, ω-hydroxycarboxylic acids and cinnamic acids with wax alcohols and diols, free wax acids such as carnauba acid and long-chain alcohols, diols and saturated hydrocarbons.

Montan wax (synonym: mountain wax, registered under CAS RN 8002-53-7 in the Coslng database) can be made from naturally occurring lignite. Main components are esters of C22-C34 fatty acids with C24, C26 and C28 wax alcohols.

Suitable liquid aqueous detergent or cleaning agent compositions for the purposes of the present invention are in particular those for use in the home or in industry, preferably those for cleaning hard surfaces such as all-purpose or kitchen cleaners.

The opacifying particles described here enable in particular the formulation of storage-stable compositions according to the invention with high concentrations of electrolytes such as preferably sodium carbonate (also known as soda), for example in concentrations of at least 0.75% by weight based on the total mass of the composition, and lead to a desired, appealing, milky-white turbidity with a surprisingly low tendency to sedimentation. Sodium carbonate is known, among other things, as a natural agent for removing fats, so that the preferred sodium carbonate-containing detergent or cleaning agent compositions described here are particularly suitable for use in all areas in which the cleaning effect on fat or fats is particularly important. An aqueous washing or cleaning composition according to the invention additionally comprises sodium carbonate.

The washing or cleaning agent composition according to the invention contain wax particles of a defined particle size distribution, measured by laser diffraction: 85% by volume or more of the particles of the abovementioned waxes or Wax mixtures in compositions according to the invention have a particle size of <15 μm, measured by laser diffraction

• eine die Zusammensetzung trübende Menge an Partikeln aus einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, vorzugsweise jeweils ausgewählt aus Carnaubawachs oder einer Mischung von Carnaubawachs und Montanwachs, wobei 85 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen und
• Natriumcarbonat, vorzugsweise einen Anteil an Natriumcarbonat von mindestens 0,75 Gew.-%, besonders bevorzugt im Bereich von 0,75 Gew.-% bis 2,0 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung. ist erfindungsgemäss.

A detergent or cleaning composition containing:

• a composition opacifying amount of particles of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, preferably each selected from carnauba wax or a mixture of carnauba wax and montan wax, wherein 85% by volume or more of Particles of these waxes have a particle size measured by laser diffraction of <15 μm and
• Sodium carbonate, preferably a proportion of sodium carbonate of at least 0.75% by weight, particularly preferably in the range from 0.75% by weight to 2.0% by weight, based in each case on the total mass of the composition. is according to the invention.

In our own tests it was possible to show that detergent compositions according to the invention with sodium carbonate remained stable to sedimentation over a period of several months under conditions relevant in practice.

Preference is also given to an inventive or preferred aqueous washing or cleaning composition according to the invention, in which 90% by volume or more, preferably 95% by volume or more, of the particles consists of one wax or more waxes, each selected from the group consisting of Montan wax, carnauba wax and mixtures thereof have a particle size of <15 μm, preferably a particle size of <12 μm, particularly preferably a particle size of <10 μm, very particularly preferably a particle size of <7 μm, most preferably a particle size of <1 .0 µm. Preference is given here to a composition according to the invention in which 90% by volume or more of the particles consist of one or more waxes, each selected from the group consisting of from montan wax, carnauba wax and mixtures thereof, have a particle size of <7 μm, particularly preferably a particle size of <1.0 μm. Furthermore, such a composition according to the invention is preferred in which 95% by volume or more of the particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, have a particle size of <7 μm, more preferably a particle size of < 1.0 µm.

Preference is also given to an inventive or preferred aqueous detergent or cleaning agent composition according to the invention, in which 90% by volume or more, preferably 95% by volume or more, of the particles consist of one wax or more waxes, each selected from the group consisting of Montan wax, carnauba wax and mixtures thereof have a particle size in the range from 0.1 to 15 μm, preferably a particle size in the range from 0.1 to 12 μm, particularly preferably a particle size in the range from 0.1 to 10 μm, very particularly preferably a particle size range of 0.1 to 7 µm and most preferably a particle size range of 0.1 to 1.0 µm. A composition according to the invention is also preferred in which 90% by volume or more of the particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, have a particle size in the range from 0.1 to 1.0 own µm. Furthermore, such a composition is preferred according to the invention, in which 95% by volume or more of the particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, have a particle size in the range from 0.1 to 1. have 0 µm.

The particle size distribution in the aqueous detergent or cleaning agent compositions according to the invention is determined in a manner known per se by laser diffraction. The D10, D50 and D90 values determined for the cumulative frequency distribution of the volume-average size distribution function indicate that 10% by volume, 50% by volume and 90% by volume of the particles of a micronized wax have a particle size equal to or less than the specified value. The size distribution curve of the micronized waxes is preferably determined according to ISO (International Organization for Standardization) 13320-1 (1999) and particularly preferably with a laser diffraction device, for example of the "Mastersizer 2000" or "Mastersizer 3000" type, both from Malvern, Great Britain. in both cases according to the manufacturer's instructions. The evaluation The scattered light signals are based on the Mie theory, which also takes into account the refraction and absorption behavior of the micronized waxes.

The volume-related D50 value of the wax particles present in an aqueous detergent or cleaning agent composition according to the invention is preferably not greater than 1 μm. At the same time, the volume-related D90 value of said wax particles is preferably not greater than 2 μm.

Particular preference is given to inventive or preferred inventive aqueous detergent or cleaning composition compositions with the particle size distribution properties described above as being preferred, which are such that after storage for a period of 6 months at a temperature of 40° C., the volume-based D50 value is not greater than 1 µm. At the same time, the volume-related D90 value in these compositions is particularly preferably not greater than 2 μm after said storage.

Wax dispersions with a desired particle size distribution are known per se and are commercially available, for example from the company Keim Additec, Kirchberg, Germany. Furthermore, such wax dispersions and processes for their preparation are known to those skilled in the art, for example from R. Heusch, Ullmann's Encyclopedia of Industrial Chemistry, 5th ed. (possibly more recent editions) 1987, A9, p. 297 ff .

In general, similar rules apply to the production of wax dispersions as to the production of emulsions, since these are mixtures of hydrophilic (eg water) and hydrophobic (usually oils or waxes) phases, in particular liquids. To produce them, for example, liquid wax that has melted above the dropping point can be added to boiling water, or vice versa. The dropping point is the temperature at which a substance begins to flow under standardized test conditions. The substance is heated in a controlled manner until it changes from the solid to the liquid state of aggregation. During the measurement, the temperature at which the first drop detaches from the sample is recorded.

Suitable emulsifiers that greatly reduce the interfacial tension between two substances (up to approx. 1 mN/m) can be selected in preliminary empirical tests on the basis of their chemical structure and polarity and can be pre-dissolved both in the wax and in the water phase. The mixing of the two - usually liquid - phases usually takes place with vigorous stirring, often using rotor-stator systems with high shearing forces. If emulsifiers are used, they cover and stabilize the newly formed interfaces (e.g. disperse inner phase of the finest wax droplets in a continuous outer aqueous phase), so that the fresh emulsion produced is protected against unwanted growth of large droplets at the expense of smaller ones (so-called "Ostwald ripening" , leads to highly polydisperse systems) and the combination of several droplets to form a large drop (so-called "coalescence") is stabilized. Conventional (macro) emulsions are - in contrast to "micro-emulsions" - generally thermodynamically unstable. Depending on the type (anionic, nonionic, cationic), the stabilizing properties of emulsifiers are based on electrostatic and/or steric repulsion effects. Various scientific rules and theories known to those skilled in the art can be used to better understand two-phase systems, e.g. the "DLVO theory", the "Bancroft rule", the "HLB system" (Hydrophilic-Lipophilic Balance) according to Griffith; or the "Davis method". In addition to thermodynamics, kinetics also play an important role in the production of emulsions. When the inner phase is broken up, a large number of very fine particles are formed as a result of the input of energy (e.g. due to strong shearing). The large surface created in this way should be covered with emulsifier molecules as quickly (influence of kinetics) and permanently (influence of thermodynamics) as possible. It has proven advantageous to combine different emulsifiers with one another.

Unstable emulsions show effects such as creaming and sedimentation over time. The smallest possible monodisperse particles, small differences in density between the two phases and a high viscosity of the continuous phase have a stabilizing effect. A low, water-thin viscosity of the outer phase poses a greater challenge to the long-term storage stability of emulsions and dispersions. Only very small particles with a diameter of < 100 nm (semi-transparent microemulsions, which show a Tyndall effect and represent a transitional stage to real solutions) are thermodynamically stable (ie entropy-stabilized) and show little or no signs of creaming or sedimentation. In particle or particle size ranges from 200 to 500 nm, water-thin tend Emulsions for flocculation and/or aggregation of primary droplets or particles. Such "clusters" of particle growth can be precursors to coalescence and thus to irreversible merging into larger droplets or particles. Macroscopically, such phenomena then lead to visible instabilities in the two- or multi-phase system. Likewise, dissolved electrolytes (salts) increase the probability of instabilities occurring during the storage period of emulsions and dispersions. The combination of the water-thin outer continuous phase and the salt dissolved in it poses a particular challenge to the stability of an emulsion or dispersion.

The inventive or preferred aqueous detergent or cleaning agent compositions contain wax particles of the above particle size distribution or preferred particle size distribution, preferably in a certain total amount: the total amount of particles of one wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof , is in an inventive or preferred composition according to the invention in the range from 0.01 to 1.0 wt .-%, preferably in the range of 0.01 to 0.7 wt .-%, particularly preferably in the range of 0.01 to 0 .5% by weight, most preferably in the range from 0.01 to 0.1% by weight, based on the total weight of the composition.

• eine die Zusammensetzung trübende Menge an Partikeln aus einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen,
  • wobei 85 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen,
    und
  • wobei die Gesamtmenge an Partikeln von einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, in der Zusammensetzung im Bereich von 0,01 bis 1,0 Gew.-% liegt, vorzugsweise im Bereich von 0,01 bis 0,7 Gew.-%, besonders bevorzugt im Bereich von 0,01 bis 0,5 Gew.-%, am meisten bevorzugt im Bereich von 0,01 bis 0,1 Gew.- %, jeweils bezogen auf die Gesamtmasse der Zusammensetzung,
  und
• Natriumcarbonat, vorzugsweise einen Anteil an Natriumcarbonat von mindestens 0,75 Gew.-%, besonders bevorzugt im Bereich von 0,75 Gew.-% bis 2,0 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung.

Accordingly, preference is given to an inventive or preferred inventive detergent or cleaning composition containing

• a composition opacifying amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof,
  • where 85% by volume or more of the particles of these waxes have a particle size measured by laser diffraction of <15 µm,
    and
  • wherein the total amount of particles of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof in the composition ranges from 0.01 to 1.0% by weight, preferably in the range from 0.01 to 0.7% by weight, more preferably in the range from 0.01 to 0.5% by weight, most preferably in the range from 0.01 to 0.1% by weight, based in each case on the total mass of the composition,
  and
• Sodium carbonate, preferably a proportion of sodium carbonate of at least 0.75% by weight, particularly preferably in the range from 0.75% by weight to 2.0% by weight, based in each case on the total mass of the composition.

Preferred aqueous washing or cleaning agent compositions according to the invention contain a composition-clouding amount of particles of one wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, with 90% by volume or more of the particles of these waxes have a particle size measured by laser diffraction in the range from 0.1 to 12 µm, preferably in the range from 0.1 to 7 µm and the total amount of the aforesaid particles in the range from 0.01 to 1.0% by weight based on the total mass of the composition.

Also preferred are inventive or preferred inventive aqueous detergent or cleaning agent compositions containing a composition opacifying amount of particles of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, with 90% by volume or more, preferably 95% by volume or more, of the particles of these waxes have a particle size measured by laser diffraction in the range of 0.1 to 12 µm, preferably in the range of 0.1 to 7 µm and the total amount of the aforesaid particles in the range from 0.01 to 0.7% by weight based on the total weight of the composition.

• einen Anteil an einem Tensid oder mehreren Tensiden, ausgewählt jeweils aus der Gruppe bestehend aus anionischen Tensiden und nichtionischen Tensiden, wobei das oder zumindest eines der anionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Sodium Laureth Sulfate, Sodium Lauryl Sulfate und Tensiden, welche erhältlich sind durch Neutralisation von Fettsäuren mit Alkanolaminen, und wobei das oder zumindest eines der nichtionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Lauryl/Myristyl Glucoside und PEG-4 Rapeseedamide,
  und/oder
• einen Anteil an Natriumcarbonat von mindestens 0,75 Gew.-%, bezogen auf die Gesamtmasse der Zusammensetzung, vorzugsweise umfassend einen Anteil an Natriumcarbonat im Bereich von 0,75 Gew.-% bis 2,0 Gew.-%,
  und/oder
• einen Emulgator oder mehrere Emulgatoren, vorzugsweise ausgewählt aus der Gruppe bestehend aus anionischen Emulgatoren und nichtionischen Emulgatoren.

In preferred embodiments, the aqueous detergent or cleaning agent compositions according to the invention contain further components in addition to the particles described in more detail above made of one or more waxes in the indicated or preferred particle size distributions and in the optionally indicated or preferred total amounts. In particular, a composition according to the invention is preferred which comprises:

• a proportion of one or more surfactants each selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate and surfactants which are available are obtained by neutralizing fatty acids with alkanolamines, and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucoside and PEG-4 rapeseedamide,
  and or
• a proportion of sodium carbonate of at least 0.75% by weight, based on the total mass of the composition, preferably comprising a proportion of sodium carbonate in the range from 0.75% by weight to 2.0% by weight,
  and or
• one or more emulsifiers, preferably selected from the group consisting of anionic emulsifiers and nonionic emulsifiers.

Sodium Laureth Sulfate (also referred to as Sodium Laureth Sulphate) is known per se as an ingredient in cleaning, care and cosmetic products. This is a mixture of substances which, according to the Coslng database, contains or may contain the following substances, each of which is identified by the CAS registration number (Chemical Abstracts Services) known to the person skilled in the art: CAS RN 3088-31-1 ; 9004-82-4; 68891-38-3; 1335-72-4; 68585-34-2; 91648-56-5; 221-416-0; 500-234-8; 500-223-8; 293-918-8. In the narrower sense, sodium laureth sulfate is understood to mean sodium salts of ethoxylated C12-C14 fatty alcohol ether sulfates. All of these substances and their mixtures in any mixing ratio are to be covered by the term "sodium laureth sulfate", in particular the polyethylene glycol mono-C12-C14-alkyl ether sulfate sodium salt with the CAS RN 68585-34-2 .

Sodium Lauryl Sulfate is also known per se as an ingredient in cleaning, care and cosmetic products and refers to sodium salts of alkyl (C12-C16) alcohol sulfates ( CAS RN: 73296-89-6) , in the narrower sense sodium dodecyl sulfate ( CAS RN: 151-21-3 ). All these substances, as well as their mixtures in any mixing ratios are intended to be covered by the term "sodium lauryl sulfate".

Primary, secondary and tertiary C1-C4-alkylamines, in which the C1-C4-alkyl chains can each be linear or branched, as well as mixtures, are particularly suitable as alkanolamines for the preparation of the surfactants described above, which can be obtained by neutralizing fatty acids with alkanolamines these C1-C4-alkylamines in any mixing ratio. Triethanolamine (also referred to as 2,2',2"-nitrilotriethanol or [tris(2-hydroxyethyl)amine]) is preferably used as the alkanolamine, if appropriate in commercially available purity, i.e. possibly still containing by-products and impurities produced during production in the Purpose acceptable amount.

Suitable fatty acids for the production of the surfactants described above, which can be obtained by neutralizing fatty acids with alkanolamines, are in particular fatty acids or fatty acid mixtures of natural origin, for example those from vegetable oils which generally have an even number of carbon atoms. Suitable vegetable oils can be obtained from oil plants known per se, for example from olives, sesame, flax, rapeseed, hemp or sunflowers. Examples of suitable fatty acids, which can be used individually or in any mixing ratio, are those with 14 to 22 carbon atoms (C14-C22), preferably those with 16 to 18 carbon atoms (C16-C18), which are preferably straight-chain and 0 , 1 or 2 double bonds in the molecule. Fatty acid mixtures are preferably used with an average content of C18 fatty acid(s) with a single double bond in the molecule (C18:1; e.g. oleic acid) of 60 to 75% by weight, preferably about 68% by weight. Preference is given, for example, to fatty acid mixtures which are predominantly C16 (about 10 to 18% by weight of the fatty acid mixture), C18 (about 2 to 5% by weight of the fatty acid mixture), C18:1 (about 63 to 72% by weight) of the fatty acid mixture) and C18:2 (about 8 to 13% by weight of the fatty acid mixture) fatty acids. The aforementioned fatty acids or fatty acid mixtures are preferably obtained or produced from olive oil.

Lauryl/myristyl glucoside refers here to the known individual substances lauryl glucoside and myristyl glucoside and mixtures thereof in any ratio to one another. Lauryl Glucoside is also referred to as Dodecyl D-Glucoside ( CAS RN: 27836-64-2 ). Myristyl Glucoside is also referred to as Tetradecyl D-Glucoside ( CAS RN 54549-26-7 ).

PEG-4 Rapeseedamide (designation according to " International Nomenclature of Cosmetic Ingredients", INCI; cf. International Cosmetic Ingredient Dictionary and Handbook, 15th ed. 2014, Personal Care Products Council, ed .; CAS RN 85536-23-8 ) can be produced from rapeseed oil and is known per se, for example as an ingredient in cleaning or cosmetic products.

The aforementioned proportion of one or more surfactants, each selected from the group consisting of anionic surfactants and nonionic surfactants, is in compositions according to the invention or preferred compositions according to the invention preferably in the range from 1.0 to 7.0% by weight, preferably in the range from 1.5 to 6.0% by weight and particularly preferably in the range from 2.0 to 4.0% by weight, based in each case on the total mass of the aqueous detergent or cleaning agent composition.

In a preferred embodiment, the inventive or preferred aqueous detergent or cleaning agent composition according to the invention comprises a proportion of sodium carbonate of at least 0.75% by weight, in particular a total content of sodium carbonate in the range from 0.75 to 2.0% by weight. , preferably a total content of sodium carbonate in the range of 0.8 to 1.5 wt .-%, each based on the total mass of the composition.

• eine die Zusammensetzung trübende Menge an Partikeln aus einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, wobei 90 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße im Bereich von 0,1 bis 15 µm besitzen und wobei die Gesamtmenge der vorgenannten Partikel im Bereich von 0,01 bis 1,0 Gew.-%, vorzugsweise im Bereich von 0,01 bis 0,7 Gew.-%, bezogen auf die Gesamtmasse der Zusammensetzung, liegt,
• einen Anteil im Bereich von 1,0 bis 7,0 Gew.-%, bezogen auf die Gesamtmasse der Zusammensetzung, an einem oder mehreren Tensiden, ausgewählt aus der Gruppe bestehend aus anionischen Tensiden und nichtionischen Tensiden, wobei das oder zumindest eines der anionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Sodium Laureth Sulfate, Sodium Lauryl Sulfate und Tensiden, welche erhältlich sind durch Neutralisation von Fettsäuren mit Alkanolaminen und wobei das oder zumindest eines der nichtionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Lauryl/Myristyl Glucoside und PEG-4 Rapeseedamide,
• einen Anteil an Natriumcarbonat im Bereich von 0,75 Gew.-% bis 2,0 Gew.-%, bezogen auf die Gesamtmasse der Zusammensetzung,
• gegebenenfalls einen Emulgator oder mehrere Emulgatoren, vorzugsweise ausgewählt aus der Gruppe bestehend aus anionischen Emulgatoren und nichtionischen Emulgatoren
  und
• Wasser als Lösungsmittel.

In a specific preferred embodiment, the composition according to the invention thus comprises:

• a composition opacifying amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 90% by volume or more of the particles of these waxes have a particle size measured by laser diffraction in the range of 0, 1 to 15 µm and the total amount of the aforementioned particles being in the range from 0.01 to 1.0% by weight, preferably in the range from 0.01 to 0.7% by weight, based on the total mass of the composition, lies,
• a proportion in the range from 1.0 to 7.0% by weight, based on the total mass of the composition, of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate and surfactants which are obtainable by neutralizing fatty acids with alkanolamines and where the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucoside and PEG -4 rapeseed amides,
• a proportion of sodium carbonate in the range from 0.75% by weight to 2.0% by weight, based on the total mass of the composition,
• optionally one or more emulsifiers, preferably selected from the group consisting of anionic emulsifiers and nonionic emulsifiers
  and
• water as solvent.

• Wasser, vorzugsweise in einer Menge im Bereich von 90 bis 97 Gew.-%, besonders bevorzugt im Bereich von 92 bis 96 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung;
• ein Tensid oder mehrere Tenside, ausgewählt aus der Gruppe bestehend aus anionischen Tensiden und nichtionischen Tensiden, wobei das oder zumindest eines der anionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Sodium Laureth Sulfate, Sodium Laurylsulfate und Tensiden, welche erhältlich sind durch Neutralisation von Fettsäuen mit Alkanolaminen und wobei das oder zumindest eines der nichtionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Lauryl/Myristyl Glucoside und PEG-4 Rapeseedamide, vorzugsweise in einer Menge im Bereich von 1,5 bis 6,0 Gew.-%, besonders bevorzugt im Bereich von 2,0 bis 4,0 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung;

• Natriumcarbonat, vorzugsweise in einer Menge im Bereich von 0,75 bis 2,0 Gew.-%, besonders bevorzugt im Bereich von 0,8 bis 1,5 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung;
• eine die Zusammensetzung trübende Menge an Partikeln von einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, wobei 85 Vol.-% oder mehr, vorzugsweise 90 Vol.-% oder mehr, der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen, vorzugsweise in einer Gesamtmenge im Bereich von 0,01 bis 1,0 Gew.-% , besonders bevorzugt im Bereich von 0,01 bis 0,5 Gew.-%, am meisten bevorzugt im Bereich von 0,01 bis 0,1 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung
  und
• gegebenenfalls weitere Bestandteile, vorzugsweise in einer Gesamtmenge von bis zu 2,5 Gew.-%, besonders bevorzugt von bis zu 2,0 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung.

A particularly preferred embodiment of an inventive or preferred inventive aqueous detergent or cleaning agent composition comprises:

• water, preferably in an amount in the range from 90 to 97% by weight, particularly preferably in the range from 92 to 96% by weight, in each case based on the total mass of the composition;
• one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, where the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate and surfactants which are obtainable by neutralizing fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucoside and PEG-4 rapeseedamide, preferably in an amount ranging from 1.5 to 6.0 % by weight, particularly preferably in the range from 2.0 to 4.0% by weight, in each case based on the total mass of the composition;

• Sodium carbonate, preferably in an amount in the range from 0.75 to 2.0% by weight, particularly preferably in the range from 0.8 to 1.5% by weight, in each case based on the total mass of the composition;
• a composition opacifying amount of particles of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, with 85% by volume or more, preferably 90% by volume or more, of the particles of these waxes have a particle size measured by laser diffraction of <15 μm, preferably in a total amount in the range from 0.01 to 1.0% by weight, particularly preferably in the range from 0.01 to 0.5% by weight, most preferably in the range from 0.01 to 0.1% by weight, in each case based on the total mass of the composition
  and
• optionally further components, preferably in a total amount of up to 2.5% by weight, particularly preferably up to 2.0% by weight, based in each case on the total mass of the composition.

The percentages by weight of the individual components in the aforementioned particularly preferred embodiment each add up to 100% by weight.

Possible further components for compositions according to the invention or preferred compositions according to the invention are acceptable components for aqueous detergents or cleaning agents, preferably an emulsifier or several emulsifiers, in particular selected from the group consisting of anionic emulsifiers and nonionic emulsifiers; complexing agents; Solvents, in particular solvents miscible with water in the stated amount range; disinfectants; biocides; Perfumes and/or colorants.

Suitable anionic emulsifiers can be selected, for example, from the group consisting of primary and secondary C _8-18 alkyl sulfates, preferably fatty alcohol ether sulfates; primary and secondary C _8-18 alkyl ether sulfates, also referred to as fatty alcohol polyglycol ether sulfates, with a degree of ethoxylation of one to three; primary and secondary C _8-18 alkyl ether carboxylates, also referred to as fatty alcohol polyglycol ether carboxylates, with a degree of ethoxylation of four to ten and C _12-18 alkane sulfonates, preferably secondary C _12-18 alkane sulfonates.

Suitable nonionic emulsifiers can be selected, for example, from the group consisting of primary and secondary C _8-18 -alkyl ethoxylates, also referred to as fatty alcohol polyglycol ethers, with a degree of ethoxylation of from two to 50; C _8-18 -alkyl sorbitan ethoxylates, also referred to as ethoxylated sorbitan fatty acid esters, with a degree of ethoxylation of two to 50 and C _8-18 -alkyl polyglycosides, also referred to as alkyl polyglucosides, with a degree of glycosidation of one to three.

In the context of the present invention, the notation "C _8-18 -" denotes a monovalent, linear or branched aliphatic group containing from eight to 18 carbon atoms (or a corresponding other number for the specification with other numerical values), saturated or or polyunsaturated and contains only hydrogen atoms in addition to carbon atoms. The terms "primary" and "secondary" each mean that a functional group (a group that is not a pure hydrocarbon radical, e.g. a sulfate group) of a surfactant is either bonded to a primary carbon atom (which, in addition to two hydrogen atoms, also has a hydrocarbon radical as Substituents carries) or to a secondary carbon atom (which carries two hydrocarbon radicals as substituents in addition to a hydrogen atom).

Emulsifiers such as the aforementioned anionic or nonionic emulsifiers often also have surface-active properties and can then also act as surfactants. Therefore, if the aqueous detergent or cleaning agent compositions according to the invention contain emulsifiers such as the anionic or nonionic emulsifiers described in detail above in addition to the proportion of one or more surfactants specified above, for the purposes of the present invention when determining the proportion by weight of anionic surfactants and nonionic surfactants and, where otherwise necessary for understanding, the proportions of this or these surfactants and the proportions of the anionic or nonionic emulsifier(s), in each case in % by weight to the total mass of the composition. In other words, for the purpose of determining the weight fraction, the corresponding emulsifiers are considered as surfactants.

The aqueous washing or cleaning agents according to the invention described in more detail above, including their preferred embodiments also described in more detail above, are preferably fluid, approximately water-thin, and preferably each have a dynamic viscosity <100 mPa s, preferably <10 mPa s, each measured with a Brookfield rotational viscometer, spindle LV1 at 100 rpm and a temperature of 20 °C. The dynamic viscosity is preferably determined according to ISO 1652 (ISO1652:2011) or analogously or analogously according to this specification.

• eine die Zusammensetzung trübende Menge an Partikeln aus einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, vorzugsweise jeweils ausgewählt aus Carnaubawachs oder einer Mischung von Carnaubawachs und Montanwachs, wobei 85 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen,
  wobei die dynamische Viskosität der Zusammensetzung < 100 mPa s, vorzugsweise < 10 mPa s beträgt, jeweils gemessen mit einem Brookfield-Rotationsviskosimeter, Spindel LV1 bei 100 UPM und einer Temperatur von 20 °C
  und
• Natriumcarbonat, vorzugsweise einen Anteil an Natriumcarbonat von mindestens 0,75 Gew.-%, besonders bevorzugt im Bereich von 0,75 Gew.-% bis 2,0 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung.

Accordingly, preference is also given to an inventive or preferred inventive detergent or cleaning composition containing:

• a composition opacifying amount of particles of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, preferably each selected from carnauba wax or a mixture of carnauba wax and montan wax, wherein 85% by volume or more of Particles of these waxes have a particle size of < 15 µm measured by laser diffraction,
  where the dynamic viscosity of the composition is <100 mPa s, preferably <10 mPa s, measured in each case with a Brookfield rotational viscometer, spindle LV1 at 100 rpm and a temperature of 20°C
  and
• Sodium carbonate, preferably a proportion of sodium carbonate of at least 0.75% by weight, particularly preferably in the range from 0.75% by weight to 2.0% by weight, based in each case on the total mass of the composition.

In our own tests it was possible to show that detergent compositions according to the invention containing electrolytes remained stable to sedimentation over a period of several months even in the above-mentioned high dilution under conditions relevant in practice.

The present invention also encompasses the use of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof as opacifying agents in aqueous detergent or cleaning agent compositions as defined in the appended claims.

All configurations and combinations specified above for the detergent or cleaning agent composition according to the invention, including the configurations and combinations specified as preferred in each case, also apply without restriction and, if appropriate, mutatis mutandis to the use according to the invention specified above, and vice versa.

Preference is given to an aforementioned use according to the invention or a preferred use according to the invention, the one or more waxes being selected from the group consisting of carnauba wax and mixtures of carnauba wax with montan wax.

Also preferred according to the invention is an aforementioned use according to the invention or preferred according to the invention, wherein the one or more waxes are each present in particulate form, with 85% by volume or more of the particles of these waxes having a particle size of <15 μm measured by laser diffraction.

According to the invention is the aforementioned use, wherein the aqueous washing or cleaning agents additionally comprise sodium carbonate.

The use according to the invention or preferred according to the invention of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, is particularly preferred. as opacifying agents in aqueous detergent or cleaning agent compositions which comprise sodium carbonate.

• das eine Wachs oder die mehreren Wachse jeweils in partikulärer Form vorliegen, wobei 85 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen,
  und
• vorzugsweise die Gesamtmenge an Partikeln des einen Wachses oder der mehreren Wachse in der Zusammensetzung im Bereich von 0,01 bis 1,0 Gew.-% liegt, vorzugsweise im Bereich von 0,01 bis 0,5 Gew.-%, besonders bevorzugt im Bereich von 0,01 bis 0,1 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung.

Also preferred is an aforementioned use according to the invention or preferred according to the invention of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, as opacifying agents in aqueous detergent or cleaning agent compositions,
whereby

• the one or more waxes are each in particulate form, with 85% by volume or more of the particles of these waxes having a particle size of <15 µm measured by laser diffraction,
  and
• preferably the total amount of particles of the one or more waxes in the composition is in the range from 0.01 to 1.0% by weight, preferably in the range from 0.01 to 0.5% by weight, more preferably im Range from 0.01 to 0.1% by weight, in each case based on the total mass of the composition.

• die dynamische Viskosität der Zusammensetzungen < 100 mPa s, vorzugsweise < 10 mPa s beträgt, jeweils gemessen mit einem Brookfield-Rotationsviskosimeter, Spindel LV1 bei 100 UPM und einer Temperatur von 20 °C
  und
• die Zusammensetzungen Natriumcarbonat umfassen, besonders bevorzugt einen Anteil an Natriumcarbonat von mindestens 0,75 Gew.-%, ganz besonders bevorzugt im Bereich von 0,75 Gew.-% bis 2,0 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung.

Also preferred is an inventive or preferred inventive use of a wax or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, as opacifiers in aqueous detergent or cleaning agent compositions, wherein

• the dynamic viscosity of the compositions is <100 mPas, preferably <10 mPas, measured in each case with a Brookfield rotational viscometer, spindle LV1 at 100 rpm and a temperature of 20°C
  and
• the compositions comprise sodium carbonate, particularly preferably a proportion of sodium carbonate of at least 0.75% by weight, very particularly preferably in the range from 0.75% by weight to 2.0% by weight, based in each case on the total mass of the composition .

• einen Anteil an einem oder mehreren Tensiden, ausgewählt aus der Gruppe bestehend aus anionischen Tensiden und nichtionischen Tensiden, umfassen, wobei das oder zumindest eines der anionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Sodium Laureth Sulfate, Sodium Laurylsulfate und Tensiden, welche erhältlich sind durch Neutralisation von Fettsäuen mit Alkanolaminen und wobei das oder zumindest eines der nichtionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Lauryl/Myristyl Glucoside und PEG-4 Rapeseedamide,
  und/oder
• einen Anteil an Natriumcarbonat von mindestens 0,75 Gew.-%, vorzugsweise einen Anteil an Natriumcarbonat im Bereich von 0,75 Gew.-% bis 2,0 Gew.-% umfassen, jeweils bezogen auf die Gesamtmasse der Zusammensetzungen.

In many cases, preference is also given to an above-mentioned use according to the invention or preferred use according to the invention, where the detergent or cleaning agent compositions:

• a proportion of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate and surfactants which are available by neutralizing fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucoside and PEG-4 rapeseedamide,
  and or
• a proportion of sodium carbonate of at least 0.75% by weight, preferably a proportion of sodium carbonate in the range from 0.75% by weight to 2.0% by weight, in each case based on the total mass of the compositions.

• Vermischen einer trübenden Menge an Partikeln von einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, wobei 85 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen, mit den weiteren Bestandteilen der Wasch- oder Reinigungsmittel-Zusammensetzung.

The present invention further also encompasses a process for preparing a cloudy, aqueous detergent or cleaning agent composition as defined in the appended claims, comprising the following step:

• Mixing an opacifying amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, with 85% by volume or more of the particles of these waxes having a particle size of <15 µm measured by laser diffraction, with the other components of the detergent or cleaning agent composition.

All configurations and combinations specified above for the detergent or cleaning agent composition according to the invention or for the use according to the invention, including the configurations and combinations specified as preferred in each case, also apply without restriction and, if appropriate, analogously to the method according to the invention specified above, and vice versa.

An aforementioned method according to the invention is preferred, in which the opacifying amount of particles comprises carnauba wax or a mixture of carnauba wax with montan wax. In a method according to the invention or a preferred method according to the invention, the aqueous washing or cleaning agent additionally comprises sodium carbonate.

Also preferred is a method according to the invention or preferred method according to the invention, wherein the total amount of particles of the one or more waxes in the composition is in the range from 0.01 to 1.0% by weight, preferably in the range from 0.01 to 0 5% by weight, particularly preferably in the range from 0.01 to 0.1% by weight, based in each case on the total mass of the composition.

• einen Anteil an einem oder mehreren Tensiden, ausgewählt aus der Gruppe bestehend aus anionischen Tensiden und nichtionischen Tensiden, wobei das oder zumindest eines der anionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Sodium Laureth Sulfate, Sodium Laurylsulfate und Tensiden, welche erhältlich sind durch Neutralisation von Fettsäuen mit Alkanolaminen und wobei das oder zumindest eines der nichtionischen Tenside vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Lauryl/Myristyl Glucoside und PEG-4 Rapeseedamide,
  und/oder
• einen Anteil an Natriumcarbonat von mindestens 0,75 Gew.-%, vorzugsweise einen Anteil an Natriumcarbonat im Bereich von 0,75 Gew.-% bis 2,0 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung.

Also preferred is a method according to the invention or preferred according to the invention, wherein the detergent or cleaning agent composition comprises:

• a proportion of one or more surfactants selected from the group consisting of anionic surfactants and nonionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate and surfactants which are obtainable by neutralization of fatty acids with alkanolamines and wherein the or at least one of the nonionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucoside and PEG-4 rapeseedamide,
  and or
• a proportion of sodium carbonate of at least 0.75% by weight, preferably a proportion of sodium carbonate in the range from 0.75% by weight to 2.0% by weight, in each case based on the total mass of the composition.

• Vermischen einer trübenden Menge an Partikeln von einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, wobei 85 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen, mit den weiteren Bestandteilen der Wasch- oder Reinigungsmittel-Zusammensetzung, welche Natriumcarbonat umfassen.

A process according to the invention or preferred according to the invention for the production of a cloudy aqueous detergent or cleaning agent composition is particularly preferred, comprising the following step:

• Mixing an opacifying amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, with 85% by volume or more of the particles of these waxes having a particle size of <15 µm measured by laser diffraction, with the other components of the detergent or cleaning agent composition, which include sodium carbonate.

• Vermischen einer trübenden Menge an Partikeln von einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, wobei 85 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen, mit den weiteren Bestandteilen der Wasch- oder Reinigungsmittel-Zusammensetzung, welche vorzugsweise Natriumcarbonat umfassen,
  wobei die Gesamtmenge an Partikeln des einen Wachses oder der mehreren Wachse in der Zusammensetzung im Bereich von 0,01 bis 1,0 Gew.-% liegt, vorzugsweise im Bereich von 0,01 bis 0,5 Gew.-%, besonders bevorzugt im Bereich von 0,01 bis 0,1 Gew.-%, jeweils bezogen auf die Gesamtmasse der Zusammensetzung.

Preference is also given to an inventive or preferred inventive-βes method for producing a cloudy aqueous detergent or cleaning agent composition, comprising the following step:

• Mixing an opacifying amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, with 85% by volume or more of the particles of these waxes having a particle size of <15 µm measured by laser diffraction, with the other components of the detergent or cleaning agent composition, which preferably include sodium carbonate,
  wherein the total amount of particles of the one or more waxes in the composition is in the range of 0.01 to 1.0% by weight, preferably in the range of 0.01 to 0.5% by weight, more preferably im Range from 0.01 to 0.1% by weight, in each case based on the total mass of the composition.

• Vermischen einer trübenden Menge an Partikeln von einem Wachs oder mehreren Wachsen, jeweils ausgewählt aus der Gruppe bestehend aus Montanwachs, Carnaubawachs und deren Mischungen, wobei 85 Vol.-% oder mehr der Partikel dieser Wachse eine durch Laserbeugung gemessene Teilchengröße von < 15 µm besitzen, mit den weiteren Bestandteilen der Wasch- oder Reinigungsmittel-Zusammensetzung, welche vorzugsweise Natriumcarbonat umfassen,

wobei die dynamische Viskosität der Zusammensetzung < 100 mPa s, vorzugsweise < 10 mPa s beträgt, jeweils gemessen mit einem Brookfield-Rotationsviskosimeter, Spindel LV1 bei 100 UPM und einer Temperatur von 20 °C.Preference is also given to an inventive or preferred inventive-βes method for producing a cloudy aqueous detergent or cleaning agent composition, comprising the following step:

• Mixing an opacifying amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, with 85% by volume or more of the particles of these waxes having a particle size of <15 µm measured by laser diffraction, with the other components of the detergent or cleaning agent composition, which preferably include sodium carbonate,

where the dynamic viscosity of the composition is <100 mPa s, preferably <10 mPa s, measured in each case with a Brookfield rotational viscometer, spindle LV1 at 100 rpm and a temperature of 20°C.

Examples:

The examples given below are intended to further explain and describe the present invention without limiting its scope.

Aqueous washing or cleaning agent compositions with the representative formulations given in Table 1 were produced. The opacifying agents specified (styrene-acrylate copolymer: not according to the invention, i.e. comparison; montan wax or carnauba wax: according to the invention in each case) were each used in particulate form, with the D50 value of the volume-related particle size distribution at the beginning of the storage tests for all opacifying agents being approximately was 200 nm. Formulations 1.1 and 1.3 (each with sodium carbonate) represent aqueous detergent or cleaning agent compositions according to the invention. Formulations 2.1 and 2.3 represent aqueous detergent or cleaning agent compositions (each without sodium carbonate). Formulations 1.2 and 2.2 are non-inventive comparison compositions.

The aqueous detergent and cleaning agent compositions given in Table 1 were then subjected to a storage test at 23° C. or 40° C. for six months (see Table 2). The effects of this storage test on the particle sizes or the particle size distributions of the opacifying agents used in each case are given in Table 2, together with observations of any sedimentation phenomena occurring in the compositions after the end of the storage test. Table 2 shows measured values averaged from several measurements.

As can be seen from the measured values and observations according to Table 2, the compositions according to the invention with an increased electrolyte content (with sodium carbonate, formulations 1.1, 1.3) as well as compositions used for comparison without an increased electrolyte content (without sodium carbonate, formulations 2.1, 2.3) were after six months Storage time both under normal conditions (23 °C) and stable to sedimentation at elevated temperatures (40 °C). The non-inventive comparative compositions (recipes 1.2, 2.2), on the other hand, showed signs of sedimentation due to precipitation of the clouding agent in individual cases even when stored under normal conditions (23° C.) and both with an increased electrolyte content (with sodium carbonate, recipe 1.2) and even without an increased electrolyte content (recipe 2.2). means

Furthermore, it can be seen from the data in Table 2 that even in the comparison compositions without an increased electrolyte content (recipe 2.2), the particle size of the opacifying agents increased significantly more during storage than in the corresponding compositions of recipe 2.1. This effect was even clearer in the corresponding compositions with increased electrolyte contents (sodium carbonate): the differences between the maximum particle sizes of the opacifying agents between the comparison compositions and the compositions according to the invention (after storage in each case) were even greater here (with the respective smaller maximum particle sizes in the compositions according to the invention).

The designation "(FD&C)" in Table 1 indicates that the colorant so designated falls within the criteria for additives in foods, drugs or cosmetics under the US Food, Drug & Cosmetic Act.

The information "./." in Tables 1 and 2 means that there is no entry in the corresponding cell. <u>Table 1:</u> Compositions (recipes) of aqueous detergents or cleaning agents for storage tests component CAS no. (CAS RN) function Recipe 1.1 Recipe 1.2 (comparison) Recipe 1.3 Recipe 2.1 (comparison) Recipe 2.2 (comparison) Recipe 2.3 (comparison) Sodium Lauryl Ether Sulfate 68585-34-2 surfactant (anionic) 1.00 1.00 1.00 1.00 1.00 1.00 PEG-4 Rapeseedamide 85536-23-8 surfactant (nonionic) 0.50 0.50 0.50 0.50 0.50 0.50 Olive oil fatty acids (OFS), C18:1, approx. 68%) ./. Anionic surfactant (soap with TEA) 0.50 0.50 0.50 0.50 0.50 0.50 Triethanolamine (TEA) 102-71-6 Anionic surfactant (soap with OFS, possibly residual alkali) 1.00 1.00 1.00 1.00 1.00 1.00 sodium ./. Salt 1.00 1.00 1.00 ./. ./. ./. Carnauba wax, particulate ./. opacifier 0.05 ./. ./. 0.05 ./. ./. Styrene/acrylate copolymer, particulate ./. opacifier ./. 0.05 ./. ./. 0.05 ./. Montan wax, particulate ./. opacifier ./. ./. 0.05 ./. ./. 0.05 phenoxyethanol 122-99-6 biocide 1.00 1.00 1.00 1.00 1.00 1.00 Glutamic acid, N,N-diacetic acid, 4 Na salt 051981-21-6 complexing agent 0.10 0.10 0.10 0.10 0.10 0.10 Fragrances, native & synthetic ./. scent 0.10 0.10 0.10 0.10 0.10 0.10 Dyes (FD&C), water soluble ./. coloring 0.0020 0.0020 0.0020 0.0020 0.0020 0.0020 water, demineralized ./. solvent to 100 to 100 to 100 to 100 to 100 to 100 recipe storage temperature Mean particle size D50 value standard deviation Minimum particle size Maximum particle size Observation: Recipe 1.1 23°C 316nm 304nm 107 nm 111nm 744 nm No sedimentation Recipe 1.1 40℃ 414nm 386nm 168nm 132nm 1,126 nm No sedimentation Recipe 1.2 23°C 550nm 537nm 160nm 226nm 1,150nm In isolated cases sedimentation Recipe 2.1 23°C 291 nm 280nm 99nm 100nm 669nm No sedimentation Recipe 2.1 40℃ 284 nm 272 nm 95nm 108nm 669nm No sedimentation Recipe 2.2 23°C 447nm 438nm 119nm 197 nm 877 nm In isolated cases sedimentation

Claims (15)

1. Aqueous washing or cleaning agent composition containing an amount of particles, opacifying the composition, of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles of said waxes have a particle size measured by laser diffraction of < 15 µm,
   wherein the composition additionally comprises sodium carbonate.
2. Composition according to Claim 1, wherein

   - the amount of particles opacifying the composition comprises carnauba wax or a mixture of carnauba wax with montan wax.
3. Composition according to either of the preceding claims, wherein
   90% by volume or more, preferably 95% by volume or more, of the particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, have a particle size of < 15 µm, preferably a particle size of < 12 µm, particularly preferably a particle size of < 10 µm, especially preferably a particle size of < 7 µm, most preferably a particle size of < 1.0 µm.
4. Composition according to any of the preceding claims, wherein
   90% by volume or more, preferably 95% by volume or more, of the particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, have a particle size in the range of 0.1 to 15 µm, preferably a particle size in the range of 0.1 to 12 µm, particularly preferably a particle size in the range of 0.1 to 10 µm, especially preferably a particle size in the range of 0.1 to 7 µm, most preferably a particle size in the range of 0.1 to 1.0 µm.
5. Composition according to any of the preceding claims, wherein the total amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, in the composition is in the range of 0.01 to 1.0% by weight, preferably in the range of 0.01 to 0.7% by weight, particularly preferably in the range of 0.01 to 0.5% by weight, most preferably in the range of 0.01 to 0.1% by weight, based in each case on the total mass of the composition.
6. Composition according to any of the preceding claims, comprising

   - a proportion of one or more surfactants, each selected from the group consisting of anionic surfactants and non-ionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate and surfactants obtainable by neutralization of fatty acids with alkanolamines, and wherein the or at least one of the non-ionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucosides and PEG-4 rapeseedamides,
   and/or

   - a proportion of sodium carbonate of at least 0.75% by weight, based on the total mass of the composition, preferably comprising a proportion of sodium carbonate in the range of 0.75% by weight to 2.0% by weight,
   and/or

   - one or more emulsifiers, preferably selected from the group consisting of anionic emulsifiers and non-ionic emulsifiers.
7. Composition according to any of the preceding claims, comprising

   - water, preferably in an amount in the range of 90 to 97% by weight, particularly preferably in the range of 92 to 96% by weight, based in each case on the total mass of the composition;

   - one or more surfactants selected from the group consisting of anionic surfactants and non-ionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate, and surfactants obtainable by neutralization of fatty acids with alkanolamines and wherein the or at least one of the non-ionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucosides and PEG-4 rapeseedamides, preferably in an amount in the range of 1.5 to 6.0% by weight, particularly preferably in the range of 2.0 to 4.0% by weight, based in each case on the total mass of the composition;

   - sodium carbonate, preferably in an amount in the range of 0.75 to 2.0% by weight, particularly preferably in the range of 0.8 to 1.5% by weight, based in each case on the total mass of the composition;

   - an amount of particles, opacifying the composition, of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles of said waxes have a particle size, measured by laser diffraction, of < 15 µm, preferably in a total amount in the range of 0.01 to 1.0% by weight, particularly preferably in the range of 0.01 to 0.5% by weight, most preferably in the range of 0.01 to 0.1% by weight, based in each case on the total mass of the composition;
   and

   - optionally further constituents, preferably in a total amount of up to 2.5% by weight, particularly preferably of up to 2.0% by weight, based in each case on the total mass of the composition.
8. Composition according to any of the preceding claims, the dynamic viscosity of which is < 100 mPa s, preferably < 10 mPa s, measured in each case using a Brookfield rotational viscometer, spindle LV1 at 100 rpm and a temperature of 20°C.
9. Use of one or more waxes each selected from the group consisting of montan wax, carnauba wax and mixtures thereof as opacifying agents in aqueous washing or cleaning agent compositions,
   wherein

   - the one or more waxes are each in particulate form, wherein 85% by volume or more of the particles of said waxes have a particle size, measured by laser diffraction, of < 15 µm
   and

   - the aqueous washing or cleaning agent compositions comprise sodium carbonate.
10. Use according to Claim 9, wherein

    - the total amount of particles of the one or more waxes in the compositions is in the range of 0.01 to 1.0% by weight, preferably in the range of 0.01 to 0.5% by weight, particularly preferably in the range of 0.01 to 0.1% by weight, based in each case on the total mass of the compositions,
    and/or

    - the one or more waxes are each selected from the group consisting of carnauba wax and mixtures of carnauba wax and montan wax.
11. Use according to either of Claims 9 to 10, wherein the washing or cleaning agent compositions:

    - contain a proportion of one or more surfactants selected from the group consisting of anionic surfactants and non-ionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate and surfactants obtainable by neutralization of fatty acids with alkanolamines, and wherein the or at least one of the non-ionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucosides and PEG-4 rapeseedamides,
    and/or

    - contain a proportion of sodium carbonate of at least 0.75% by weight, preferably a proportion of sodium carbonate in the range of 0.75% by weight to 2.0% by weight, based in each case on the total mass of the compositions.
12. Method for producing an opacified aqueous washing or cleaning agent composition, comprising the following step:

    - mixing an opacifying amount of particles of one or more waxes, each selected from the group consisting of montan wax, carnauba wax and mixtures thereof, wherein 85% by volume or more of the particles of said waxes have a particle size, measured by laser diffraction, of < 15 µm, with the further constituents of the washing or cleaning agent composition,
    wherein the aqueous washing or cleaning agent composition comprises sodium carbonate as a further constituent.
13. Method according to Claim 12, wherein

    - the opacifying amount of particles comprises carnauba wax or a mixture of carnauba wax and montan wax.
14. Method according to either of Claims 12 to 13, wherein the total amount of particles of the one or more waxes in the composition is in the range of 0.01 to 1.0% by weight, preferably in the range of 0.01 to 0.5% by weight, particularly preferably in the range of 0.01 to 0.1% by weight, based in each case on the total mass of the composition.
15. Method according to any of Claims 12 to 14, wherein the washing or cleaning agent composition

    - contains a proportion of one or more surfactants selected from the group consisting of anionic surfactants and non-ionic surfactants, wherein the or at least one of the anionic surfactants is preferably selected from the group consisting of sodium laureth sulfate, sodium lauryl sulfate and surfactants obtainable by neutralization of fatty acids with alkanolamines, and wherein the or at least one of the non-ionic surfactants is preferably selected from the group consisting of lauryl/myristyl glucosides and PEG-4 rapeseedamides,
    and/or

    - contains a proportion of sodium carbonate of at least 0.75% by weight, preferably a proportion of sodium carbonate in the range of 0.75% by weight to 2.0% by weight, based in each case on the total mass of the composition.