Biodegradable propoxylated ethylenediamines, their preparation, uses, and compositions comprising them
Biodegradable propoxylated ethylenediamines with specific propylene oxide units are developed to enhance the biodegradability and stain removal efficiency in detergents, particularly for clay and oily/fatty soils, addressing the challenges of reduced surfactant levels and low-temperature washing.
Patent Information
- Application Number
- PCT/EP2024/085181
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-15
- Filing Date
- 2024-12-07
- Publication Date
- 2025-06-19
AI Technical Summary
Current detergents face challenges in effectively removing a broad spectrum of soils and stains, particularly greasy and clay-based soils, at low temperatures and with reduced surfactant levels, while also requiring improved biodegradability and sustainability.
Development of biodegradable propoxylated ethylenediamines with an average of 28 to 52 propylene oxide units per mole, which exhibit excellent wash performance and significant biodegradability, and can be used in cleaning compositions for improved clay and oily/fatty stain removal.
The propoxylated ethylenediamines demonstrate enhanced biodegradability and effective stain removal performance, including clay and oily/fatty soils, even at low temperatures and with reduced surfactant levels, thus addressing the sustainability and performance challenges in detergent formulations.
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Abstract
Description
[0001] Biodegradable propoxylated ethylenediamines, their preparation, uses, and compositions comprising them
[0002] This invention deals with biodegradable propoxylated ethylenediamines (in this present invention abbreviated as "inventive compound”, or "inventive polymer”, or "compound of the invention” whenever the inventive propoxylated ethylenediamines are meant), their manufacture, their uses, particularly for use in cleaning compositions such as laundry detergent compositions, and specifically for improved clay removal and / or oily / fatty soil removal and / or body soil removal and / or whiteness maintenance in laundry care.
[0003] Detergent formulators are continuously faced with the task of developing improved products to remove a broad spectrum of soils and stains from fabrics and hard surfaces. Chemically and physico-chemically, the varieties of soils and stains spectrum range from polar soils, such as proteinaceous, clay, and inorganic soils, to non-polar soils, such as soot, carbon-black, by-products of incomplete hydrocarbon combustion, and organic soils like sebum and body soils. The removal of greasy (i.e., oily / fatty) stains has been a particularly challenging problem. This challenge has been accentuated by the recent high interest and motivation to reduce the level of surfactants in cleaning detergents for environmental, sustainability and cost reasons. A reduction of the amount of surfactants added, especially a reduction of anionic surfactants, such as linear alkyl benzene sulfonate, LAS, has typically been found to lead to an erosion of oily / fatty stain removal. Additionally, the global trend of using washing conditions at lower temperature further diminishes grease cleaning capabilities of typical detergents, since the class of oily and fatty stains shows the greatest performance drop when the temperature is decreased. On the other hand, clay soil stains, although in some instances contacting the fabric fibers with less force, nevertheless provide a specific type of soil removal problem due to the high degree of charge associated with the clay itself. This high surface charge density may act to repel some laundry ingredients, thus surfactants alone cannot remove or carry away the clay into the laundry liquor.
[0004] Another global trend is the compaction of laundry detergents, in order to improve the sustainability in terms of water usage and / or transportation costs, as well as to improve the convenience for the end consumer (e.g., single mono dose products, tabs, pouches and the like), which leads to a high market demand for new raw materials that have a higher weight-efficiency and a significantly broader performance profile.
[0005] A further strongly emerging trend is the desire to improve the "footprint” of any product, be it in terms of its origin like being from natural or renewable resources, or compared to previous products, its production in terms of production efficiency and thus reduced usage of energy, its efficiency in usage such as reduced amounts for the same performance or higher performance at the same amount levels used, its persistence in the natural environment after its usage, especially its biodegradation, since recycling is technically very challenging and therewith economically not attractive. Hence, due to the climate change, one of the most important targets of the detergent and cleaner (D&C) industry today is to significantly lower the CO2 emission per wash, by improving cold water conditions, improving the cleaning efficiency at low temperatures of 30 °C and below, and to lower the amounts of chemicals employed per wash, and increasing the weight-efficiency of the cleaning technologies. Another important target of the D&C industry is the need for biodegradable polymers, to improve the sustainability of the detergent formulations and to avoid the potential accumulation of the polymers or their degradation products, resulting from incomplete biodegradation of the polymers in the ecosystem, thus lowering the persistence in nature after usage of the materials.
[0006] As a result of these trends, there is a strong need for new biodegradable cleaning polymers that provide both excellent primary (i.e., soil removal) and secondary (i.e., whiteness maintenance) cleaning benefits for both hydrophobic and hydrophilic stains, and an improved biodegradability. The materials should exhibit good soil removal for oily / fatty / sebum and particulate stains and should also lead to improved whiteness maintenance, minimizing the amount of suspended and emulsified oily / fatty / sebum and particulate soil from redepositing on the surfaces of the textiles or hard surfaces. Preferably, the new ingredients would also display a synergy with other cleaning technologies, such as other cleaning polymers, surfactants and / or enzymes, known for improving solely the oily / fatty / sebum or particulate stain removal and / or whiteness of fabrics and hard surfaces, leading to further improved detergent compositions.
[0007] For example, alkoxylated polyalkylene imine and alkoxylated polyamine polymers, especially the class of alkoxylated hyperbranched polyethylene imine (PEI) and alkoxylated linear polypropylene imine (PPI) homo- and copolymers, are known in the literature to be able to contribute to particulate or to oily / fatty soil removal, especially at low surfactant levels and at cold water conditions (30 °C and below). Moreover, their biodegradation performance generally is poor, and thus not acceptable for current and future requirements. Ideally, the polymers are readily biodegradable, i.e., show equal to or more than 60% oxygen consumption after 28 days in the OECD 301 F test or they are considered moderately biodegradable then they show equal to or more than 40% after 28 days in the OECD 301 F test. Alternatively, the polymers are inherently biodegradable in the OECD 302 B test, i.e., show equal to or more than 70% dissolved organic carbon (DOC) levels. Hence, there is a need to find improved polymer architectures with a similar or superior performance profile, a feasible preparation process and an improved biodegradation behavior.
[0008] In the following, a summary of the most relevant publications in the field of the present invention, propoxylated ethylenediamines, is given.
[0009] WO2021154569 A discloses alkoxylated ethylenediamine. These alkoxylated ethylenediamines have at least three alkoxy units selected from propylene oxide and / or butylene oxide. The application is completely silent on the biodegradability of the compounds. In contrast to the present invention, WC2021154569 does not disclose a specific range of propoxylene oxide units per NH-functionality that is on the one hand associated with good cleaning performance of the alkoxy lated ethylenediamine and on the other hand provides significant biodegradability.
[0010] Surprisingly, the present inventors found that ethylenediamine (EDA) with at least one propoxylated NH- functionality, wherein the propoxylated ehtylenediamine comprises on average 28 to 52 propylene oxide (PO) units per mol EDA demonstrates excellent wash performance and show a significant biodegradation. Based on experimentally generated data, it was possible to observe for a specific range of PO modification a high biodegradability which is sharply decreasing with higher amounts of PO modification. With lower numbers of PO modification, the wash performance is significantly declining.
[0011] Therefore, the object of the present invention is to provide novel propoxylated ethylenediamines, wherein at least one of the NH-functionalities of ethylenediamine (EDA) is propoxylated and wherein the propoxylated ehtylenediamine comprises on average 28 to 52 propylene oxide (PO) units per mol EDA.
[0012] In the following, any alkylene oxide is generically referred to as "AO”, ethylene oxide is sometimes referred to as “EO”, propylene oxide as "PO”; butylene oxide as "BuO”. "PEO” is used sometimes herein to describe polyethylene oxide homopolymers or PEO-blocks within a larger polymer structure; likewise, "PPO” describes the polypropylene oxide homopolymers or polymer-blocks within a larger polymer structure.
[0013] A process to produce the inventive compounds is also part of this invention.
[0014] The use of the compounds of this invention for all kinds of applications for which the previously described polyamines, polyethylene imines, polypropylene imines, and their alkoxylated derivates have been used is encompassed by this present invention as well.
[0015] Compositions comprising such propoxylated ethylenediamines of this invention similar to those compositions in which the previously known polyamines, polyethylene imines, polypropylene imines, and their alkoxylated derivates have been employed - either the inventive propoxylated ethylenediamines instead of such known compounds or in combinations with such known compounds - forms part of this invention as well.
[0016] The term "compound of the invention”, or "inventive compound”, or "inventive polymer”, as used herein, refers to propoxylated ethylenediamines I ethylenediamine propoxylates (which may be used interchangeably herein) prepared as described below and / or in the appended claims.
[0017] Thus, subjects of the present invention are the following Embodiments 1 to 24 as defined and further explained with further embodiments hereinafter and further exemplified in the experimental section: Embodiment 1
[0018] Propoxylated ethylenediamine, wherein at least one of the NH-functionalities of ethylenediamine (EDA) is propoxylated and wherein the propoxylated ethylenediamine comprises (or consists of or essentially consists of) on average 28 to 52 propylene oxide (PO) units per mol EDA.
[0019] Ethylenediamine or EDA, as interchangeably used herein, refers to a compound of formula (I)
[0020] Other names for EDA used in the art are Ethane-1 ,2-diamine (IUPAC name), Edamine and 1 ,2-Diaminoethane.
[0021] Within the context of the present invention, the term “N H-functionality” is defined as follows: A primary amino group (-NH2) has two NH-functionalities, a secondary amino group only one NH-functionality, and a tertiary amino group, by consequence, has no reactive NH-functionality. Thus, before being modified the ethylenediamine has four NH- functionalities.
[0022] The compounds of the invention comprise side chains, polypropylene oxide branches, which are directly attached to nitrogen atom of the NH-functionality of the ethylenediamine. The side chains are solely made up from propylene oxides. Typically, a side chain possesses on average 7 to 13 PO units. Usually, the used PO units are equally distributed among the different branches including a modest statistical variation. More detailed embodiments describing the different chain lengths are provided below.
[0023] It is noted that all such numbers are numbers "on average” meaning that such numbers refer to the average number for such unit per NH-functionality calculated based on all NH-functionalities of the propoxylated ethylenediamines.
[0024] It is to be emphasized that the reactions leading to the inventive compounds are statistical reactions, meaning there is never just one chemically exactly defined compound present, but an inventive propoxylated ethylenediamine always is a mixture of slightly deviating structures, all stemming from the same reaction within one reaction space; the difference of those structures clearly stemming from the facts that no reaction proceeds in exactly the same way and the same speed on all functional units, especially as the chemical reactivities of the functional units - here mainly those of the -NH groups, differs according to their environment, meaning that a primary amine group reacts differently than a secondary amine, and also the chemical environment of the groups may be different; this leads in an overall view to slightly deviating structures being present, and thus any compound of this invention being defined as in the various embodiments including the numbered Embodiments 1 to 24, and exemplified in the examples never is just one chemical compound, but always a mixture of slightly deviating compounds, having a statistical distribution. As the reactivities of those groups are not differing by a large extent, the deviation is relatively small. Hence, defining a propoxylated ethylenediamine of the invention by a prototypical member is a viable way of defining the structure. Also, defining the composition of the side chains by average numbers (including those variables defined in the present and following embodiments based on the numbers of NH-functionalities being present in the propoxylated ethylenediamines is a useful way of defining the overall composition of any mixture herein defined as "a propoxylated ethylenediamine of the invention”.
[0025] Therefore, unless otherwise indicated, the values, ranges and ratios given in the specification for the number of NH-functionalities and the molecular weight (Mn) relate to the number average values in heterogenic mixture of the synthesized propoxylated ethylenediamines containing individual, slightly from each other deviating chemical structures that result from the preparation method of the present invention. As known in polymer science, the weight-average molecular weight (Mw) is then a measure for the (in)homogeneity within the mixture of different species in "the propoxylated ethylenediamines''.
[0026] The term "average number of POs per propylene oxide branch”, as used herein, refers to the calculated number of PO units that should be present in one propoxylene oxide branch. As explained in more detail above, the skilled person is well-aware of the fact that the synthesis of the inventive compounds will result in a mixture of slightly deviating compounds underlying a statistical distribution. Thus, the "average number of POs per propylene oxide branch” is calculated by dividing the total amount of employed mol PO per mol of ethylenediamine by the number of NH-functionalities of ethylenediamine.
[0027] The terms "essentially consisting of' or "consisting essentially of”, as used interchangeably herein, with respect to ethylenediamine means that EDA may comprise impurities or other types of compounds in an amount up to not more than 10% w / w, not more than 7% w / w, not more than 5% w / w, not more than 3% w / w, not more than 2% w / w, not more than 1% w / w, not more than 0.5% w / w or not more than 0.1 % w / w.
[0028] It is noted that the alkylene oxide used to prepare the inventive compounds may be derived from a fossil or nonfossil carbon source or even a mixture of the before mentioned. Preferably, the amount of non-fossil carbon atoms in the alkoxy side chains is at least 10%, at least 20%, at least 40%, at least 70%, at least 95% or it solely comprises non-fossil derived carbon atoms. The skilled person is well-aware of commercial alkylene oxide products made of non-fossil carbon sources (these products are often sold as being sustainable, renewable or bio-based). For example, methods to prepare bio-based propylene oxide are known (see Abraham, D. S., "Production of propylene oxide from propylene glycol" Master's Thesis University of Missouri-Columbia (2007) (75 pages)).
[0029] Embodiment 2 The propoxylated ethylenediamine according to Embodiment 1, wherein the propoxylated ethylenediamine comprises on average not more than 48, preferably not more than 44 and more preferably not more than 42 PO units per mol EDA.
[0030] This means that the average number of POs per propylene oxide branch is not more than 12, preferably not more than 11 and more preferably not more than 10.
[0031] Embodiment 3
[0032] The propoxylated ethylenediamine according to Embodiments 1 or 2, wherein the propoxylated ethylenediamine comprises on average at least 32, preferably at least 36 and more preferably at least 38 PO units per mol EDA.
[0033] This means that the average number of POs per propylene oxide branch is at least 8, preferably at least 9 and more preferably at least 9.5.
[0034] In preferred embodiments, one propylene oxide branch has an average weight ranging from 400 to 800 g / mol, preferably from 500 to 700 g / mol and more preferably from 550 to 650 g / mol.
[0035] Embodiment 4
[0036] The propoxylated ethylenediamine according to anyone of Embodiments 1 to 3, wherein the weight average molecular weight (Mw) of the propoxylated ethylenediamine is in the range of from 1500 to 3200 g / mol, preferably in the range of from 1800 to 2800 g / mol and more preferably in the range of from 2000 to 2500 g / mol.
[0037] In preferred embodiments, the weight average molecular weight (Mw) of the propoxylated ethylenediamine is in the range of from 1500 to 2400 g / mol and the propoxylated ethylenediamine comprises on average 28 to 40 propylene oxide (PO) units per mol EDA. This corresponds to on average 7 to 10 propylene oxide (PO) units per NH- functionality.
[0038] The person skilled in the art knows how to determine / measure the respective weight average molecular weight (Mw). This can be done, for example, by size exclusion chromatography (such as GPC, e.g., in combination with light scattering). Preferably, Mw values are determined by the method as follows: OECD TG 118 (1996), which means in detail
[0039] OECD (1996), Test No. 118: Determination of the Number-Average Molecular Weight and the Molecular Weight Distribution of Polymers using Gel Permeation Chromatography, OECD Guidelines for the Testing of Chemicals, Section 1 , OECD Publishing, Paris, also available on the internet, for example, under https: / / doi.orq / 10.1787 / 9789264069848-en.
[0040] Molecular weights of the propoxylated ethylenediamine may be determined by gel permeation chromatography (GPC). The samples were prepared as follows: approx. 15 mg sample was dissolved in 10 ml eluent (THF + 0.035 mol / L Diethanolamine) for 1 hour at a temperature of 50°C. All sample solutions were filtered by a Chromafil Xtra PTFE (0,20 m filtered prior to injection). Sealed sample vials were placed into the auto sampler. An Agilent 1200 HPLC system, consisting of an isocratic pump, vacuum degasser, auto sampler and a column oven was used. Furthermore, the Agilent system contains a Differential Refractive Index (DRI) and a variable Ultra Violet (UVW) Detector for detection. Data acquisition and data processing of conventionally SEC data was done by WinGPC Unichrom, build 6999, of PSS (Polymer Standard Services now part of Agilent). A combination of a SDV guard (7,5 x 50 mm) column and 3 SDV columns (1000A, 100000A and 1000000A, all 7,5 x 300 mm) of PSS were put in series at 60°C. THF + 0.035 mol / L Diethanolamine was used as eluent at a flow rate of 1 mL / min. 1 OOpiL of each sample solution was injected. The calibration was obtained by narrow molar mass distributed Polyethyleneoxide standards (Agilent) having a molar mass range of M= 160 till M = 1.378.000 g / mol. Molar masses outside this range were extrapolated.
[0041] "Mw” is the weight average molecular weight and "Mn” is number average molecular weight. The respective values of Mw and / or Mn can be determined as described within the experimental section below.
[0042] The molar mass distribution Mw / Mn obtained by GPC is equal to the polydispersity index (PDI), the PDI being without unit [g / mol I g / mol]).
[0043] Embodiment 5
[0044] The propoxylated ethylenediamine according to anyone of Embodiments 1 to 4, wherein said propoxylated ethylenediamine demonstrates at least 20%, preferably at least 40% or more preferably at least 60% biodegradability according to standard OECD 301 F after not more than 56 days, preferably after 28 days.
[0045] For the purposes of this invention, aerobic biodegradation in wastewater according to OECD 301 F is expressed as a percentage of the theoretical oxygen demand (ThOD, which is measured by the elemental analysis of the compound of interest), which is needed to completely biodegrade the compound sample. Thus, the amount of oxygen taken up by the microbial population during biodegradation of the test substance (corrected for uptake by blank inoculum, run in parallel) is expressed as a percentage of ThOD. The obtained values are preferably measured in triplicate using the OECD 301 F manometric respirometry method. The consumption of oxygen is determined by measuring the change in pressure in the apparatus using an OxiTop® C (Xylem 35 Analytics Germany Sales GmbH & Co KG). Details for the tests performed are given in the experimental section below. The present invention provides modified ethylenediamines, which are propoxylated. The combined core-shell- product (i.e., the propoxylated ethylenediamine), in which the "core” is the ethylenediamine core, and the "shell” is the polypropylene oxide branches, exhibits a significant biodegradation value. Moreover, these inventive compounds demonstrate also wash performance comparable to currently used products.
[0046] Embodiment 6
[0047] The propoxylated ethylenediamine according to anyone of Embodiments 1 to 5, wherein at least three NH- functionalities, preferably all four NH-functionalities are modified with propylene oxide (PO) units.
[0048] The inventive compounds may comprise secondary amines that originate I) from primary amino groups of the ethylenediamine which are modified with only a single propoxylene oxide branch. By secondary amino group, as used herein, an amine is meant in which the nitrogen atom is attached to two carbon atoms and one hydrogen atom. Another hand, the inventive compounds comprise tertiary amines that originate from reacted secondary amino groups of ethylenediamine and which are reacted with two propoxylene oxide branches. As mentioned above, in preferred embodiments all four NH-functionalities are modified with propylene oxide (PO) units meaning that these compounds only comprise tertiary amino groups.
[0049] The amount of secondary amino groups in the propoxylated ethylenediamine can be measured according to methods known to the skilled person, such as NMR-spectroscopy, such as 13C-NMR-spectroscopy and / or 1 H NMR-spectroscopy.
[0050] Embodiment 7
[0051] The propoxylated ethylenediamine according to any of Embodiments 1 to 6, wherein all propoxylene oxide branches attached to the NH-functionality of the ethylenediamine have the same structure, in that sense that the number of PO units per propoxylene oxide branch is identical or, alternatively, the propoxylene oxide branch structures vary slightly.
[0052] Without wishing being bound by the following explanation, a rationale exists to explain the resulting structures of the propoxylated ethylenediamines: Due to the fact that the reactions in questions necessarily employed to prepare those structural orders of the side chains, and thus to prepare the specific inventive compounds, are reactions of quite reactive species which can lead under suitable conditions to almost complete and even "essentially complete” conversions of almost 100 % if not even 100%, the statistical deviation of the composition of the mixture of "propoxylated ethylenediamine'' in question is not that high, which in turn means that the structural order of the side chains do not show much deviation. Thus, it is a reliable assumption which can in principle be proven by sophisticated and thus time-consuming and expensive analytical means - such as multi-dimensional NMR- analyses - that it is generally accepted that such deviation exists; hence, no "specific propoxylated ethylenediamine'' will be "just one chemical compound of a clearly defined chemical structure”, but clearly will consist of a a) mixture of slightly differing compounds, such differences lying in b) slight deviations may already in the structure of compound making up "the (unmodified) ethylenediamine'' being employed for the further modification steps, and c) the slight deviations in the structural orders of the side chains may be attached by way of d) multi-step reactions due to e) variations in the chemical reactivities of the -OH groups, and f) due to slight inhomogeneities occurring in a commercial scale process. All of those factors a) to f) - to just mention a few important ones - lead to a "specific propoxylated ethylenediamine'' which is not one specific chemical compound but in fact a mixture of slightly differing compounds having an overall very similar chemical structure; thus, such structure is best described by average numbers for the variables and percentages for the amounts of the dominating structural order.
[0053] Embodiment 8
[0054] A process for preparing the propoxylated ethylenediamine according to Embodiments 1 to 7, wherein ethylenediamine is reacted with 28 to 52 propylene oxide units per mol EDA in order to obtain the respective propoxylated ethylenediamine.
[0055] In more preferred embodiments, the ethylenediamine is reacted on average with not more than 48, preferably not more than 44 and more preferably not more than 42 PO units per mol EDA and / or at least 32, preferably at least 36 and more preferably at least 38 PO units per mol EDA.
[0056] All of the terms within Embodiment 8 have already been defined and explained in detail herein before within the description of the Embodiments 1 to 7, such terms, definitions and further specifications of course apply to this Embodiment 8.
[0057] The conversion rate of the reaction step may be monitored and in preferred embodiments the conversion rate is at least 90%, preferably at least 95%, more preferably at least 99%, and even more preferably at least 99,5 % or even more. All other structural orders of the side chains as defined above but also the undefined structures resulting from non-controllable parameters are performed in this defined manner, leading - on statistical average - to a defined structural order directly derived from the way such reaction is performed.
[0058] The conversion rate of the reaction can be determined according to methods known to the skilled person, such as NMR-spectroscopy, such as 13C-NMR-spectroscopy and / or 1 H NMR-spectroscopy. For the reaction conditions such as catalysts, temperatures, duration, purification etc. of the reactions to produce the units of the side chains of the inventive propoxylated ethylenediamine, the respective information within the disclosures such as WO2021154569 A is fully encompassed into this recent disclosure by way of reference.
[0059] Within this preferred Embodiment, the propoxylation may be a two-step reaction, wherein the second step is carried out in the presence of at least one catalyst. Within this alkoxyl ation step, the catalyst is preferably a basic catalyst. Examples of suitable catalysts are alkali metal and alkaline earth metal hydroxides such as sodium hydroxide, potassium hydroxide and calcium hydroxide, alkali metal alkoxides, in particular sodium and potassium C1-C4- alkoxides, such as sodium methoxide, sodium ethoxide and potassium tert-butoxide, alkali metal and alkaline earth metal hydrides such as sodium hydride and calcium hydride, and alkali metal carbonates such as sodium carbonate and potassium carbonate. Preference is given to the alkali metal hydroxides and the alkali metal alkoxides, a particular preference being given to potassium hydroxide and sodium hydroxide. Typical use amounts for the base are from 0.05 to 10% by weight of final product, in particular from 0.05 to 2% by weight, based on the total amount of ethylenediamine and propylene oxide. During the first step of the propoxylation, 1 to 4 PO / NH can be reacted with the EDA without any catalyst or optionally with water.
[0060] Embodiment 9
[0061] Process according to Embodiment 9, wherein the propoxylated ethylenediamine is further submitted to the following process steps of a. purification using standard means such as steam distillation, thermal distillation, vacuum evaporation, including removal of all solvent, dialysis and / or b. drying using standard drying means such as spray-, drum, paddle-, vacuum-drying means including agglomeration methods such as fluidized-bed-drying, to obtain a purified solution, a purified liquid, a solid compound, or a purified solid compound, respectively.
[0062] In case that after the reaction leading to the inventive compound residual educts (ethylenediamine and / or propylene oxide) are present to a non-desirable extent, the resulting product mixture containing the propoxylated ethylenediamine may be further purified by standard means to reduce the content of residual educts, but also to reduce the amount of possible by-products, reduce the amount(s) of the solvent(s) employed (i.e., to concentrate) or replace solvent(s) with other solvents. Such processes are known to a person of skill in this field.
[0063] Preferably, undesirable amounts of residual non-reacted educts are removed, preferably by means of distillative processes, more preferably by thermal distillative processes, which may additionally comprise the application of reduced pressure to increase the speed and / or the effectiveness of the removal. Optionally, when used, the catalyst can be removed by an absorbent, such as acid magnesium silicates (e.g. Ambosol or Magnesol) or the catalyst may be neutralized with inorganic or organic acids, such as HOAc, H3PO4, etc. In a preferred embodiment only the additional process step a) is employed.
[0064] Use of and compositions comprising the inventive propoxylated ethylenediamine
[0065] Part of this invention is also the use of the inventive propoxylated ethylenediamines for various fields of applications, where they can replace currently known similar structures, but bring in their enhanced rate of biodegradation compared to those previously known structures.
[0066] Embodiment 10
[0067] Use of at least one propoxylated ethylenediamine according to any one of Embodiments 1 to 7 in cleaning compositions, in fabric and home care products, in cosmetic formulations, as crude oil emulsion breaker, in pigment dispersions for ink jet inks, in formulations for electro plating, in cementitious compositions, as dispersant for agrochemical formulations.
[0068] A subject matter of the present invention is the use of the above-mentioned propoxylated ethylenediamine in fabric and home care products, in cosmetic formulations, as crude oil emulsion breaker, in pigment dispersions for ink jet inks, in formulations for electro plating, in cementitious compositions and / or as dispersant for agrochemical formulations, preferably in cleaning compositions and / or in fabric and home care products, in particular cleaning compositions for improved clay removal, sebum removal, or oily and fatty stain removal, wherein the cleaning composition is preferably a laundry detergent formulation and / or a manual dish wash detergent formulation, more preferably a liquid laundry detergent formulation and / or a liquid manual dish wash detergent formulation.
[0069] The propoxylated ethylenediamine can be added to cosmetic formulations, as crude oil emulsion breaker, in pigment dispersions for ink jet inks, formulations for electro plating, in cementitious compositions. However, the inventive compounds can also be added to (used in) washing or cleaning compositions.
[0070] Another subject-matter of the present invention is, therefore, a cleaning composition, fabric and home care product, industrial and institutional cleaning product, cosmetic formulation, crude oil emulsion breaker, pigment dispersion for ink jet inks, formulation for electro plating, cementitious composition and / or dispersant for agrochemical formulations, comprising at least one propoxylated ethylenediamine, as defined above.
[0071] Preferably, it is a cleaning composition and / or fabric and home care product, comprising at least one propoxylated ethylenediamine, as defined above, preferably for improved clay removal or oily and fatty stain removal, or sebum and body soil removal, preferably a laundry detergent formulation and / or a manual dish wash detergent formulation, more preferably a liquid laundry detergent formulation and / or a liquid manual dish wash detergent formulation. In another preferred embodiment of the present invention, the cleaning composition may be used for soil removal of particulate stains, sebum and / or oily and fatty stains, and additionally for whiteness maintenance, preferably in laundry care.
[0072] In another embodiment, the cleaning composition of the present invention is a hard surface cleaning composition that may be used for cleaning various surfaces such as hard wood, tile, ceramic, plastic, leather, metal, glass.
[0073] In another embodiment, the cleaning composition of the present invention is a liquid or solid automatic dish wash detergent composition, preferably a solid automatic dish wash detergent composition, that may be used for cleaning dish ware, e.g., dish ware such as glasses, wherein the inventive propoxylated ethylenediamine is improving the removal of stubborn soils.
[0074] In another embodiment, the cleaning composition is designed to be used in personal care and pet care compositions such as shampoo compositions, body wash formulations, liquid or solid soaps.
[0075] In this invention, a preferred area of application for the use of the propoxylated ethylenediamine is the field of fabric and home care products and cleaning compositions, preferably cleaning compositions for industrial and institutional use and the use by consumers in their household.
[0076] It is noted that the polymer of the invention may be part of a certain compositions or methods specifically created to be involved for cleaning at low temperature and / or in water conserving methods. "Low temperature”, as used herein, means not more than 40 °C, not more than 38 °C, not more than 36 °C, not more than 34 °C, not more than 32 °C, not more than 30 °C, not more than 28 °C or not more than 25 °C. "Water conserving”, as used herein, means that the total amount used in the cleaning method is less than 95%, less than 95%, less than 95%, less than 95%, less than 95%, less than 95%, less than 95% or less than 40% compared to the average of a defined cleaning method I program (e.g. laundry programs, such as colored laundry: 30°C, 40°C or 60°C; normal clothing: 60° C; eco program: 60° C; delicate wash: 30°C; easy-care textures: 30° C; washing: 90°C; synthetic: 30°C) at the time of filing.
[0077] Embodiment 11
[0078] The use according to Embodiment 10 in cleaning compositions and / or in fabric and home care products, preferably in liquid and solid detergent compositions, such detergent compositions preferably being a) manual and automatic dish wash detergent compositions, comprising the at least one propoxylated ethylenediamine, and the at least one chelating agent and / or the at least one surfactant or - more preferably - a chelating agent in case of a liquid or solid automatic dish wash composition and a surfactant system in case of a liquid manual dish wash detergent composition, respectively; and / or b) laundry detergent compositions comprising the at least one propoxylated ethylenediamine, and at least one surfactant or - preferably - a surfactant system.
[0079] Within such preferred application areas of use, typical tasks have to be fulfilled, all of which are commonly encompassed by the term "cleaning”, but in fact comprise different tasks such as clay removal or removing oily and fatty residues, solid residues, amphiphilic residues and hydrophilic residues. Other tasks are the protection of the goods to be cleaned from deterioration, such as protecting glass from corroding, silverware from oxidation, colors from fading etc. Other tasks are improving the overall appearance of the to be cleaned goods, such as increasing or restoring the color, the whiteness, imparting or increasing a shine. For many such applications additional ingredients are typically added, for cleaning applications important ones are for example enzymes, which help biologically to degrade residues.
[0080] Embodiment 12
[0081] The use according to Embodiment 10 or 11 for
[0082] I. clay removal, and / or
[0083] II. improved removal of sebum / oily / fatty stains, and / or ill. sebum removal or soil removal of particulate stains, and / or iv. dispersion and / or emulsification of soils, and / or v. modification of treated surface to improve removal upon later re- soiling, and / or vi. whiteness improvement, and / or most preferably in cleaning compositions for
[0084] I) clay removal and / or II) removal of oily / fatty stains, each of the before mentioned options I) to vi) preferably for use in a laundry detergent formulation and / or a manual dish wash detergent formulation and / or in a formulation suitable for (pre)-treatment of textiles and / or soap bars, more preferably in a liquid laundry detergent formulation and / or a liquid manual dish wash detergent formulation.
[0085] Embodiment 13
[0086] The use according to any of Embodiments 10 to 12 in cleaning compositions and / or in fabric and home care products, preferably in cleaning compositions for fabric and home care, the cleaning composition preferably being a laundry detergent formulation or a dish wash detergent formulation, even more preferably being a liquid laundry detergent formulation or a liquid dish wash detergent formulation.
[0087] Such ingredients are typically formulated with other ingredients in formulations and compositions, which may be also called "products” (as they are provided from a supplier as a formulation to another customer who uses such formulation directly for cleaning purposes etc. or for producing another formulation, which in turn could be sold to consumers as a "product” to be used by the consumer).
[0088] Embodiment 14
[0089] A composition that is a fabric and home care product, cleaning composition, industrial and institutional cleaning product, cosmetic or personal care product, oil field-formulation such as crude oil emulsion breaker, pigment dispersion for inks such as ink-jet inks, electro plating product, cementitious composition, lacquer, paint, agrochemical formulation, preferably a laundry detergent, a dish wash composition, a cleaning composition and / or a fabric and home care product, each comprising at least one propoxylated ethylenediamine according to any of the Embodiments 1 to 7 or obtained by or obtainable by a process according to Embodiment 8 or 9.
[0090] Embodiment 15
[0091] A composition according to Embodiment 14 being a solid or liquid laundry detergent composition or a solid or liquid manual dish wash detergent composition, preferably a liquid laundry detergent or a liquid manual dish wash detergent composition, more preferably a liquid laundry detergent composition, comprising the least one propoxylated ethylenediamine according to any one of Embodiments 1 to 7 or obtained by or obtainable by a process according to Embodiment 8 or 9; optionally further comprising at least one enzyme, preferably selected from one or more lipases, hydrolases, amylases, proteases, cellulases, hemicellulases, phospholipases, esterases, DNases, mannanases, xylanases, dispersins, oxidoreductases, cutinases, pectate lyases, pectinases, lactases, pectate lyases, mannanases and peroxidases, and combinations of at least two of the foregoing types, preferably at least one enzyme being selected from proteases, optionally containing at least one antimicrobial agent, wherein at least one propoxylated ethylenediamine is present in an amount ranging from about 0.01 % to about 20%, preferably from about 0.05% to 15%, more preferably from about 0.1 % to about 10%, and most preferably from about 0.5% to about 5%, in relation to the total weight of such composition or product, and such product or composition further comprising from about 1 % to about 70% by weight of at least one surfactant, preferably an anionic surfactant, or even more preferably of a surfactant system comprising at least one anionic surfactant.
[0092] Embodiment 16
[0093] A composition according to Embodiment 14 being a solid or liquid automatic dish wash detergent composition, preferably a solid automatic dish wash detergent composition, comprising the at least one propoxylated ethylenediamine according to any one of Embodiments 1 to 7 or obtained by or obtainable by a process according to Embodiment 8 or 9; optionally further comprising at least one enzyme, preferably selected from one or more lipases, hydrolases, amylases, proteases, cellulases, hemicellulases, phospholipases, esterases, DNases, mannanases, xylanases, dispersins, oxidoreductases, cutinases, pectate lyases, pectinases, lactases, pectate lyases, mannanases and peroxidases, and combinations of at least two of the foregoing types, preferably at least one enzyme being selected from proteases and amylases, optionally containing at least one antimicrobial agent, optionally containing at least one compound selected from alkali metal percarbonate, alkali metal perborate and alkali metal persulfate, optionally containing at least one zinc salt, wherein the at least one propoxylated ethylenediamine is being present in a total amount ranging from about 0.001% to about 10%, preferably from about 0.005% to 5%, more preferably from about 0.01% to about 3%, and most preferably from about 0.1 % to about 2%, and such product or composition further comprising at least one chelating agent being present in a total amount from about 1% to about 70%, preferably from 10% to about 60% and even more preferably from 30% to about 50%, and optionally further comprising at least one surfactant or more preferably a surfactant system in a total amount of from about 1% to about 70% by weight, all weight percent in relation to the total weight of such composition. Embodiment 17
[0094] A composition according to Embodiment 16, being a solid automatic dish wash detergent composition, comprising the at least one propoxylated ethylenediamine according to any one of Embodiments 1 to 7 or obtained by or obtainable by a process according to Embodiment 8 or 9, and additionally comprising at least one chelating agent selected from methylglycinediaceticacid (MGDA), glutamic acid diacetate (GLDA), citric acid and salts thereof, at least one enzyme selected from proteases and / or amylases, at least one bleaching agent selected from alkali metal percarbonate, alkali metal perborate and alkali metal persulfate, preferably alkali metal percarbonate, at least one non-ionic surfactant, optionally at least one disintegrant, preferably a super-disintegrant, more preferably PVPP, and optionally containing at least one zinc salt.
[0095] Super-disintegrants are known by a person of skill in the art, e.g. from EP1004661 , EP1263814 and EP1036839, and are discussed also in Pharmaceutical Technology, Volume 2006 Supplement, Issue 5, "A Comparative Study of Current Superdisintegrants”, October 1 , 2006.
[0096] Embodiment 18
[0097] Composition according to any of Embodiments 14 and 15 being a detergent composition, comprising as surfactant at least one anionic surfactant.
[0098] Embodiment 19
[0099] Composition according to any of Embodiments 14 and 15 being a liquid detergent composition, comprising as surfactant at least one non-ionic surfactant, and further comprising water. Embodiment 20
[0100] Composition according to any of Embodiments 14, 15, 18 and 19 being a detergent composition, comprising at least one polymer selected from multifunctional alkoxylated polyethylene imines, multifunctional alkoxylated diamines or terephthalic acid-based soil release polyesters, or mixtures thereof.
[0101] Embodiment 21
[0102] Composition according to any of Embodiments 14, 15 and 18 to 20 being a liquid detergent composition, comprising as surfactant at least one 2-propy lhepty I ethoxylated non-ionic surfactant having an average degree of ethoxylation of from 3 to 8.
[0103] Embodiment 22
[0104] Composition according to any one of Embodiments 14 to 21 further comprising an antimicrobial agent selected from the group consisting of 2-phenoxyethanol and 4,4'-dichoro 2-hydroxydiphenylether; preferably comprising 2- phenoxyethanol in an amount ranging from 2ppm to 5% by weight of the composition; more preferably comprising 0.1 to 2% of phenoxyethanol or preferably comprising 4,4'-dichoro 2-hydroxydiphenylether in a concentration from 0.001 to 3%, more preferably 0.002 to 1 %, even more preferably 0.01 to 0.6%, each by weight of the composition.
[0105] Embodiment 23
[0106] Composition according to any one of Embodiments 14 to 22 further comprising at least one enzyme selected from the list consisting of lipases, hydrolases, amylases, DNases, proteases, cellulases, hemicellulases, phospholipases, esterases, mannanases, xylanases, dispersins, oxidoreductases, cutinases, pectate lyases, pectinases, lactases and peroxidases, and combinations of at least two of the foregoing types, preferably selected from one or more lipases, hydrolases, amylases, proteases, cellulases, and combinations of at least two of the foregoing types, more preferably at least one enzyme being selected from proteases.
[0107] Embodiment 24
[0108] Method of preserving an aqueous composition according to any one of Embodiments 14 to 23 against microbial contamination or growth, which method comprises addition of an antimicrobial agent selected from the group consisting of 2-phenoxyethanol and 4,4'-dichoro 2-hydroxydiphenylether.
[0109] It is also preferred in the present invention that the cleaning composition comprises (besides at least one propoxylated ethylenediamine as described above) additionally at least one enzyme, preferably selected from one or more lipases, hydrolases, amylases, proteases, cellulases, hemicellulases, phospholipases, esterases, DNases, mannanases, xylanases, disperses, oxidoreductases, cutinases, pectate lyases, pectinases, lactases and peroxidases, preferably selected from one or more lipases, hydrolases, amylases, proteases, cellulases and combinations of at least two of the foregoing types, more preferably at least one enzyme being selected from proteases.
[0110] Preferably, the such inventive cleaning composition is a fabric and home care product or an industrial and institutional (l&l) cleaning product, preferably a fabric and home care product, more preferably a laundry detergent or manual dish washing detergent, comprising at least one inventive propoxylated ethylenediamine, and optionally further comprising at least one surfactant or a surfactant system, providing improved removal, dispersion and / or emulsification of soils and I or modification of treated surfaces and I or whiteness maintenance of treated surfaces.
[0111] At least one inventive propoxylated ethylenediamine as described herein (such propoxylated ethylenediamines as defined before and especially in the Embodiments 1 to 7 are in this following section also termed "inventive compound”) is present in said inventive cleaning compositions at a concentration of from about 0.01 % to about 20%, preferably from about 0.05% to 15%, more preferably from about 0.1 % to about 10%, and most preferably from about 0.5% to about 5%, in relation to the total weight of such composition or product; such cleaning composition may - and preferably does - further comprise a from about 1 % to about 70% by weight of a surfactant system.
[0112] Even more preferably, the cleaning compositions of the present invention comprising at least one inventive compound, and optionally further comprising at least one surfactant or a surfactant system, are those for primary cleaning (i.e., removal of stains) within laundry and manual dish wash applications, even more specifically, for removal of clay or oily and fatty stains such as those on fabrics and dishware, and may additionally comprise at least one enzyme selected from the list consisting of lipases, hydrolases, amylases, proteases, cellulases, hemicellulases, phospholipases, esterases, DNases, mannanases, xylanases, dispersins, oxidoreductases, cutinases, pectate lyases, pectinases, lactases and peroxidases, and combinations of at least two of the foregoing types of enzymes, more preferably at least one enzyme being selected from proteases.
[0113] In one preferred embodiment, the cleaning composition of the present invention is a liquid or solid laundry detergent composition.
[0114] In another preferred embodiment, the cleaning composition of the present invention is a liquid or solid (e.g., powder or tab / unit dose) detergent composition for manual or automatic dish wash, preferably either a liquid manual dish wash detergent composition or a solid automatic dish wash composition. In one embodiment, the inventive compounds of the present invention may be utilized in cleaning compositions comprising a surfactant system comprising C10-C15 alkyl benzene sulfonates (LAS) as the primary surfactant and one or more additional surfactants selected from non-ionic, cationic, amphoteric, zwitterionic or other anionic surfactants, or mixtures thereof.
[0115] In a further embodiment, the inventive compounds may be utilized in cleaning compositions, such as laundry detergents of any kind, and the like, comprising Cs-C linear or branched alkyl ether sulfates with 1-5 ethoxy-units as the primary surfactant and one or more additional surfactants selected from non-ionic, cationic, amphoteric, zwitterionic or other anionic surfactants, or mixtures thereof.
[0116] In a further embodiment the inventive compounds may be utilized in cleaning compositions, such as laundry detergents of any kind, and the like, comprising C12-C18 alkyl ethoxylate surfactants with 5-10 ethoxy-units as the primary surfactant and one or more additional surfactants selected from anionic, cationic, amphoteric, zwitterionic or other non-ionic surfactants, or mixtures thereof.
[0117] In a further embodiment the inventive compounds may be utilized in cleaning compositions, such as laundry detergents of any kind, and the like, comprising bio-based surfactants like rhamnolipids and / or sophorolipids as the primary surfactant.
[0118] In one embodiment of the present invention, the inventive compound is a component of a cleaning composition, such as preferably a laundry or a dish wash formulation, more preferably a liquid laundry or manual dish wash formulation, that each additionally comprise at least one surfactant, preferably at least one anionic surfactant.
[0119] The selection of the additional surfactants in these embodiments may be dependent upon the application and the desired benefit.
[0120] As used herein, the articles "a” and "an” when used in a claim or an embodiment, are understood to mean one or more of what is claimed or described. As used herein, the terms "include(s)” and "including” are meant to be nonlimiting, and thus encompass more than the specific item mentioned after those words.
[0121] The compositions of the present disclosure can "comprise” (i.e., contain other ingredients), "consist essentially of' (comprise mainly or almost only the mentioned ingredients and other ingredients in only very minor amounts, mainly only as impurities), or "consist of' (i.e., contain only the mentioned ingredients and in addition may contain only impurities not avoidable in a technical environment, preferably only the ingredients) the components of the present disclosure.
[0122] The term "at least one”, as used herein, includes but is not limited to 1 , 2, 3, 4, 5, 6, 7, 8, 9 and more. Similarly, the terms "substantially free of ...” or "substantially free from ...” or “(containing / comprising) essentially no ...” may be used herein; this means that the indicated material is at the very minimum not deliberately added to the composition to form part of it, or, preferably, is not present at analytically detectable levels. It is meant to include compositions whereby the indicated material is present only as an impurity in one of the other materials deliberately included. The indicated material may be present, if at all, at a level of less than 1 %, or even less than 0.1 %, or even more less than 0.01 %, or even 0%, by weight of the composition.
[0123] The term "about”, as used herein, encompasses the exact number "X” mentioned as e.g., "about X%” etc., and small variations of X, including from minus 5 to plus 5 % deviation from X (with X for this calculation set to 100%), preferably from minus 2 to plus 2 %, more preferably from minus 1 to plus 1 %, even more preferably from minus 0,5 to plus 0,5 % and smaller variations. Of course, if the value X given itself is already "100%” (such as for purity etc.) then the term "about” clearly can and thus does only mean deviations thereof which are smaller than "100”.
[0124] Unless otherwise noted, all component or composition levels are in reference to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions.
[0125] All temperatures herein are in degrees Celsius (°C) unless otherwise indicated. Unless otherwise specified, all measurements herein are conducted at 20°C and under atmospheric pressure. In all embodiments of the present disclosure, all percentages are by weight of the total composition, unless specifically stated otherwise. All ratios are weight ratios, unless specifically stated otherwise.
[0126] Description of cleaning compositions, formulations and their ingredients
[0127] The phrase "cleaning composition" as used herein includes compositions and formulations designed for cleaning soiled material. Such compositions and formulations include those designed for cleaning soiled material or surfaces of any kind.
[0128] Compositions for "industrial and institutional cleaning” includes such cleaning compositions being designed for use in industrial and institutional cleaning, such as those for use of cleaning soiled material or surfaces of any kind, such as hard surface cleaners for surfaces of any kind, including tiles, carpets, PVC-surfaces, wooden surfaces, metal surfaces, lacquered surfaces.
[0129] "Compositions for Fabric and Home Care” include cleaning compositions and formulations including but not limited to laundry cleaning compositions and detergents, fabric softening compositions, fabric enhancing compositions, fabric freshening compositions, laundry prewash, laundry pretreat, laundry additives, spray products, dry cleaning agent or composition, laundry rinse additive, wash additive, post-rinse fabric treatment, ironing aid, dish washing compositions, hard surface cleaning compositions, unit dose formulation, delayed delivery formulation, detergent contained on or in a porous substrate or nonwoven sheet, and other suitable forms that may be apparent to one skilled in the art in view of the teachings herein and detailed herein below when describing the compositions. Such compositions may be used as a pre-laundering treatment, a post-laundering treatment, or may be added during the rinse or wash cycle of the laundering operation, preferably during the wash cycle of the laundering or dish washing operation, and as further detailed herein below when describing the use and application of the inventive compounds and compositions comprising such polymers.
[0130] The cleaning compositions of the invention may be in any form, namely, in the form of a liquid; a solid such as a powder, granules, agglomerate, paste, tablet, pouches, bar, gel; an emulsion; types delivered in dual- or multicompartment containers; single-phase or multi-phase unit dose; a spray or foam detergent; premoistened wipes (i.e., the cleaning composition in combination with a nonwoven material such as that discussed in US 6, 121 ,165, Mackey, et al.); dry wipes (i.e., the cleaning composition in combination with a nonwoven materials, such as that discussed in US 5,980,931 , Fowler, et al.) activated with water by a user or consumer; and other homogeneous, non-homogeneous or single-phase or multiphase cleaning product forms.
[0131] The liquid cleaning compositions of the present invention preferably have a viscosity of from 50 to 10000 mPa*s; liquid manual dish wash cleaning compositions (also liquid manual "dish wash compositions”) have a viscosity of preferably from 100 to 10000 mPa*s, more preferably from 200 to 5000 mPa*s and most preferably from 500 to 3000 mPa*s at 20 1 / s and 20°C; liquid laundry cleaning compositions have a viscosity of preferably from 50 to 3000 mPa*s, more preferably from 100 to 1500 mPa*s and most preferably from 200 to 1000 mPa*s at 20 1 / s and 20°C.
[0132] The liquid cleaning compositions of the present invention may have any suitable pH-value. Preferably the pH of the composition is adjusted to between 4 and 14. More preferably the composition has a pH of from 6 to 13, even more preferably from 6 to 10, most preferably from 7 to 9. The pH of the composition can be adjusted using pH modifying ingredients known in the art and is measured as a 10% product concentration in demineralized water at 25°C. For example, NaOH may be used and the actual weight% of NaOH may be varied and trimmed up to the desired pH such as pH 8.0. In one embodiment of the present invention, a pH >7 is adjusted by using amines, preferably alkanolamines, more preferably triethanolamine.
[0133] Cleaning compositions such as fabric and home care products and formulations for industrial and institutional cleaning, more specifically such as laundry and manual dish wash detergents, are known to a person skilled in the art. Any composition etc. known to a person skilled in the art, in connection with the respective use, can be employed within the context of the present invention by including at least one inventive compound, preferably at least one polymer in amounts suitable for expressing a certain property within such a composition, especially when such a composition is used in its area of use. One aspect of the present invention is also the use of the inventive compounds as additives for detergent formulations, particularly for liquid detergent formulations, preferably concentrated liquid detergent formulations, or single mono doses for laundry.
[0134] The cleaning compositions of the invention may - and preferably do - contain adjunct cleaning additives (also abbreviated herein as "adjuncts”), such adjuncts being preferably in addition to a surfactant system as defined before.
[0135] Suitable adjunct cleaning additives include builders, cobuilders, structurants or thickeners, clay soil removal / anti- redeposition agents, polymeric soil release agents, dispersants such as polymeric dispersing agents, polymeric grease cleaning agents, solubilizing agents, chelating agents, enzymes, enzyme stabilizing systems, bleaching compounds, bleaching agents, bleach activators, bleach catalysts, brighteners, malodor control agents, pigments, dyes, opacifiers, hueing agents, dye transfer inhibiting agents, chelating agents, suds boosters, suds suppressors (antifoams), color speckles, silver care, anti-tarnish and / or anti-corrosion agents, alkalinity sources, pH adjusters, pH-buffer agents, hydrotropes, scrubbing particles, antibacterial agents, anti-oxidants, softeners, carriers, processing aids, pro-perfumes, dye fixation agent and perfumes.
[0136] Liquid cleaning compositions additionally may comprise - and preferably do comprise at least one of - rheology control / modifying agents, emollients, humectants, skin rejuvenating actives, and solvents.
[0137] Solid compositions additionally may comprise - and preferably do comprise at least one of - fillers, bleaches, bleach activators and catalytic materials.
[0138] Suitable examples of such cleaning adjuncts and levels of use are found in WO 99 / 05242, U.S. Patent Nos. 5,576,282, 6,306,812 B1 and 6,326,348 B1.
[0139] Those of ordinary skill in the art will understand that a detersive surfactant encompasses any surfactant or mixture of surfactants that provide cleaning, stain removing, or laundering benefit to soiled material.
[0140] Hence, the cleaning compositions of the invention such as fabric and home care products, and formulations for industrial and institutional cleaning, more specifically such as laundry and manual dish wash detergents, preferably additionally comprise a surfactant system and, more preferably, also further adjuncts, as the one described above and below in more detail.
[0141] The surfactant system may be composed from one surfactant or from a combination of surfactants selected from anionic surfactants, non-ionic surfactants, cationic surfactants, zwitterionic surfactants, amphoteric surfactants, and mixtures thereof. Those of ordinary skill in the art will understand that a surfactant system for detergents encompasses any surfactant or mixture of surfactants that provide cleaning, stain removing, or laundering benefit to soiled material.
[0142] The cleaning compositions of the invention preferably comprise a surfactant system in an amount sufficient to provide desired cleaning properties. In some embodiments, the cleaning composition comprises, by weight of the composition, from about 1 % to about 70% of a surfactant system. In other embodiments, the liquid cleaning composition comprises, by weight of the composition, from about 2% to about 60% of the surfactant system. In further embodiments, the cleaning composition comprises, by weight of the composition, from about 5% to about 30% of the surfactant system. The surfactant system may comprise a detersive surfactant selected from anionic surfactants, non-ionic surfactants, cationic surfactants, zwitterionic surfactants, amphoteric surfactants, and mixtures thereof.
[0143] (a) Laundry compositions
[0144] In laundry formulations, anionic surfactants contribute usually by far the largest share of surfactants within such formulation. Hence, preferably, the inventive cleaning compositions for use in laundry comprise at least one anionic surfactant and optionally further surfactants selected from any of the surfactant classes described herein, preferably from non-ionic surfactants and / or amphoteric surfactants and / or zwitterionic surfactants and / or cationic surfactants.
[0145] Nonlimiting examples of anionic surfactants - which may be employed also in combinations of more than one surfactant - useful herein include C9-C20 linear alkylbenzenesulfonates (LAS), C10-C20 primary, branched chain and random alkyl sulfates (AS); C10-C18 secondary (2,3) alkyl sulfates; C10-C18 alkyl alkoxy sulfates (AExS) wherein x is from 1 to 30; C10-C18 alkyl alkoxy carboxylates comprising 1 to 5 ethoxy units; mid-chain branched alkyl sulfates as discussed in US 6,020,303 and US 6,060,443; mid-chain branched alkyl alkoxy sulfates as discussed in US 6,008,181 and US 6,020,303; modified alkylbenzene sulfonate (MLAS) as discussed in WO 99 / 05243, WO 99 / 05242 and WO 99 / 05244; methyl ester sulfonate (MES); and alpha-olefin sulfonate (AOS).
[0146] Preferred examples of suitable anionic surfactants are alkali metal and ammonium salts of Cs-C 12-al ky I sulfates, of Ci2-Ci8-fatty alcohol ether sulfates, of Ci2-Ci8-fatty alcohol polyether sulfates, of sulfuric acid half-esters of ethoxylated C4-C12-al ky I phenols (ethoxylation: 3 to 50 mol of ethylene oxide / mol), of Ci2-Ci8-al kylsulfonic acids, of C12-C18 sulfo fatty acid alkyl esters, for example of C12-C18 sulfo fatty acid methyl esters, of C10-C -alky I ary Isulfonic acids, preferably of n-Cio-Cis-alkylbenzene sulfonic acids, of C10-C18 alkyl alkoxy carboxylates and of soaps such as for example C8-C24-carboxylic acids. Preference is given to the alkali metal salts of the aforementioned compounds, particularly preferably the sodium salts. In one embodiment of the present invention, anionic surfactants are selected from n-Cw-Cis-alkylbenzene sulfonic acids and from fatty alcohol polyether sulfates, which, within the context of the present invention, are in particular sulfuric acid half-esters of ethoxylated Ci2-Cis-alkanols (ethoxylation: 1 to 50 mol of ethylene oxide / mol), preferably of n-Ci2-Ci8-alkanols.
[0147] In one embodiment of the present invention, also alcohol polyether sulfates derived from branched (i.e., synthetic) Cn-Cis-alkanols (ethoxylation: 1 to 50 mol of ethylene oxide / mol) may be employed.
[0148] Preferably, the alkoxylation group of both types of alkoxylated alkyl sulfates, based on Ci2-Ci8-fatty alcohols or based on branched (i.e., synthetic) Cn-Ci8-alcohols, is an ethoxylation group and an average ethoxylation degree of any of the alkoxylated alkyl sulfates is 1 to 5, preferably 1 to 3.
[0149] In a further embodiment of the present invention, anionic surfactants are selected from rhamnolipids and / or sophorolipids.
[0150] Preferably, the laundry detergent formulation of the present invention comprises from at least 1 wt.% to 50 wt.%, preferably in the range from greater than or equal to about 2 wt.% to equal to or less than about 30 wt.%, more preferably in the range from greater than or equal to 3 wt.% to less than or equal to 25 wt.%, and most preferably in the range from greater than or equal to 5 wt.% to less than or equal to 25 wt.% of one or more anionic surfactants as described above, based on the particular overall composition, including other components and water and / or solvents.
[0151] In a preferred embodiment of the present invention, anionic surfactants are selected from C10-C15 linear alkylbenzenesulfonates, C10-C18 alkylethersulfates with 1 -5 ethoxy units and C10-C18 alkylsulfates.
[0152] Non-limiting examples of non-ionic surfactants - which may be employed also in combinations of more than one other surfactant - include: Cs-C alkyl ethoxylates, such as, NEODOL® non-ionic surfactants from Shell; ethylenoxide / propylenoxide block alkoxylates as PLURONIC® from BASF; C14-C22 mid-chain branched alkyl alkoxylates, BAEx, wherein x is from 1 to 30, as discussed in US 6, 153,577, US 6,020,303 and US 6,093,856; alkylpolysaccharides as discussed in U.S. 4,565,647 Llenado, issued January 26, 1986; specifically alkylpolyglycosides as discussed in US 4,483,780 and US 4,483,779; polyhydroxy fatty acid amides as discussed in US 5,332,528; and ether capped poly (oxyalkylated) alcohol surfactants as discussed in US 6,482,994 and WO 01 / 42408.
[0153] Preferred examples of non-ionic surfactants are in particular alkoxylated alcohols and alkoxylated fatty alcohols, di- and multiblock copolymers of ethylene oxide and propylene oxide and reaction products of sorbitan with ethylene oxide or propylene oxide, furthermore alkylphenol ethoxylates, alkyl glycosides, polyhydroxy fatty acid amides (glucamides). Preferred examples of alkoxylated alcohols and alkoxylated fatty alcohols are, for example, compounds of the general formula (A)
[0154] [formula (A)] in which the variables are defined as follows:
[0155] R1is selected from linear Ci-C -alkyl, preferably ethyl and particularly preferably methyl,
[0156] R2is selected from C8-C22-alkyl, for example n-CsH , n-CioH2i, n-Ci2H25, n-Ci4H29, n-C Hss or n-CisHsz,
[0157] R3is selected from Ci-C -alkyl, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n- pentyl, isopentyl, sec-pentyl, neopentyl, 1 ,2-dimethylpropyl, isoamyl, n-hexyl, isohexyl, sec-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl or isodecyl, m and n are in the range from zero to 300, where the sum of n and m is at least one. Preferably, m is in the range from 1 to 100 and n is in the range from 0 to 30.
[0158] Here, compounds of the general formula (A) may be block copolymers or random copolymers, preference being given to block copolymers.
[0159] Other preferred examples of alkoxylated alcohols and alkoxylated fatty alcohols are, for example, compounds of the general formula (B)
[0160] [formula (B)] in which the variables are defined as follows:
[0161] R1is identical or different and selected from linear Ci-C4-alkyl, preferably identical in each case and ethyl and particularly preferably methyl,
[0162] R4is selected from C6-C2o-alkyl, in particular n-CsH , n-CioH2i, n-Ci2H25, n-Ci4H29, n-C Hss, n-CisHsz, a is a number in the range from zero to 6, preferably 1 to 6, b is a number in the range from zero to 20, preferably 4 to 20, d is a number in the range from 4 to 25.
[0163] Preferably, at least one of a and b is greater than zero. Here, compounds of the general formula (B) may be block copolymers or random copolymers, preference being given to block copolymers.
[0164] Further suitable non-ionic surfactants are selected from di- and multi block copolymers, composed of ethylene oxide and propylene oxide. Further suitable non-ionic surfactants are selected from ethoxylated or propoxylated sorbitan esters. Alkylphenol ethoxylates or alkyl polyglycosides or polyhydroxy fatty acid amides (glucamides) are likewise suitable. An overview of suitable further non-ionic surfactants can be found in EPA 0 851 023 and in DE- A 198 19 187.
[0165] Mixtures of two or more different non-ionic surfactants may of course also be present.
[0166] In a preferred embodiment of the present invention, non-ionic surfactants are selected from C12 / 14 and C16 / 18 fatty alkoholalkoxylates, C13 / 15 oxoalkoholalkoxylates, Ci3-alkoholalkoxylates, and 2-propylheptylalkoholalkoxylates, each of them with 3 - 15 ethoxy units, preferably 4-10 ethoxy units, or with 1-3 propoxy- and 2-15 ethoxy units.
[0167] Non-limiting examples of amphoteric surfactants - which may be employed also in combinations of more than one other surfactant - include: water-soluble amine oxides containing one alkyl moiety of from about 8 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl moieties and hydroxyalkyl moieties containing from about 1 to about 3 carbon atoms; and water-soluble sulfoxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and a moiety selected from the group consisting of alkyl moieties and hydroxyalkyl moieties of from about 1 to about 3 carbon atoms. See WO 01 / 32816, US 4,681 ,704, and US 4, 133,779. Suitable surfactants include thus so-called amine oxides, such as lauryl dimethyl amine oxide ("lauramine oxide”).
[0168] Preferred examples of amphoteric surfactants are amine oxides. Preferred amine oxides are alkyl dimethyl amine oxides or alkyl amido propyl dimethyl amine oxides, more preferably alkyl dimethyl amine oxides and especially coco dimethyl amino oxides. Amine oxides may have a linear or mid-branched alkyl moiety. Typical linear amine oxides include water-soluble amine oxides containing one R1= Cs-18 alkyl moiety and two R2and R3moieties selected from the group consisting of C1-C3 alkyl groups and C1-C3 hydroxyalkyl groups. Preferably, the amine oxide is characterized by the formula
[0169] R1-N(R2)(R3)-O wherein R1is a Cs-18 alkyl and R2and R3are selected from the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroxethyl, 2-hydroxypropyl and 3-hydroxypropyl. The linear amine oxide surfactants in particular may include linear C10-C18 alkyl dimethyl amine oxides and linear C8-C12 alkoxy ethyl dihydroxy ethyl amine oxides. Preferred amine oxides include linear C10, linear C10-C12, and linear C12-C14 alkyl dimethyl amine oxides. As used herein "midbranched" means that the amine oxide has one alkyl moiety having n1 carbon atoms with one alkyl branch on the alkyl moiety having n2 carbon atoms. The alkyl branch is located on the alpha carbon from the nitrogen on the alkyl moiety. This type of branching for the amine oxide is also known in the art as an internal amine oxide. The total sum of n1 and n2 is from 10 to 24 carbon atoms, preferably from 12 to 20, and more preferably from 10 to 16. The number of carbon atoms for the one alkyl moiety (n1) should be approximately the same number of carbon atoms as the one alkyl branch (n2) such that the one alkyl moiety and the one alkyl branch are symmetric. As used herein "symmetric" means that (n1-n2) is less than or equal to 5, preferably 4, most preferably from 0 to 4 carbon atoms in at least 50 wt.%, more preferably at least 75 wt.% to 100 wt.% of the mid-branched amine oxides for use herein. The amine oxide further comprises two moieties, independently selected from a C1-C3 alkyl, a C1-C3 hydroxyalkyl group, or a polyethylene oxide group containing an average of from about 1 to about 3 ethylene oxide groups. Preferably the two moieties are selected from a C1-C3 alkyl, more preferably both are selected as a Ci alkyl.
[0170] In a preferred embodiment of the present invention, amphoteric surfactants are selected from Cs-Cis alky l-dimethyl aminoxides and Cs-C alkyl-di(hydroxyethyl)aminoxide.
[0171] Cleaning compositions may also contain zwiterionic surfactants - which may be employed also in combinations of more than one other surfactant.
[0172] Suitable zwitterionic surfactants include betaines, such as alkyl betaines, alkylamidobetaine, amidazoliniumbetaine, sulfobetaine (INCI Sultaines) as well as the phosphobetaines. Examples of suitable betaines and sulfobetaines are the following (designated in accordance with INCI): Almond amidopropyl of betaines, Apricotamidopropyl betaines, Avocadamidopropyl of betaines, Babassuamidopropyl of betaines, Behenamidopropyl betaines, Behenyl of betaines, Canol amidopropyl betaines, Capryl / Capramidopropyl betaines, Carnitine, Cetyl of betaines, Cocamidoethyl of betaines, Cocamidopropyl betaines, Cocamidopropyl Hydroxysultaine, Coco betaines, Coco Hydroxysultaine, Coco / Oleam idopropyl betaines, Coco Sultaine, Decyl of betaines, Di hydroxy ethyl Oleyl Glycinate, Dihydroxyethyl Soy Glycinate, Dihydroxyethyl Stearyl Glycinate, Dihydroxyethyl Tallow Glycinate, Dimethicone Propyl of PG-betaines, Erucamidopropyl Hydroxysultaine, Hydrogenated Tallow of betaines, Isostearamidopropyl betaines, Lauramidopropyl betaines, Lauryl of betaines, Lauryl Hydroxysultaine, Lauryl Sultaine, Milkamidopropyl betaines, Minkamidopropyl of betaines, Myristamidopropyl betaines, Myristyl of betaines, Oleamidopropyl betaines, Oleamidopropyl Hydroxysultaine, Oleyl of betaines, Olivamidopropyl of betaines, Palmamidopropyl betaines, Palmitamidopropyl betaines, Palmitoyl Carnitine, Palm Kernelamidopropyl betaines, Polytetrafluoroethylene Acetoxypropyl of betaines, Ricinoleam idopropyl betaines, Sesamidopropyl betaines, Soyamidopropyl betaines, Stearamidopropyl betaines, Stearyl of betaines, Tallowamidopropyl betaines, Tallowamidopropyl Hydroxysultaine, Tallow of betaines, Tallow Dihydroxyethyl of betaines, Undecylenamidopropyl betaines and Wheat Germamidopropyl betaines.
[0173] Preferred betaines are, for example, C i2-Cis-alky Ibetaines and sulfobetaines. The zwitterionic surfactant preferably is a betaine surfactant, more preferably a Cocoamidopropylbetaine surfactant. Non-limiting examples of cationic surfactants - which may be employed also in combinations of more than one other surfactant - include: the quaternary ammonium surfactants, which can have up to 26 carbon atoms include: alkoxylated quaternary ammonium (AQA) surfactants as discussed in US 6,136,769; dimethyl hydroxyethyl quaternary ammonium as discussed in US 6,004,922; dimethyl hydroxyethyl lauryl ammonium chloride; polyamine cationic surfactants as discussed in WO 98 / 35002, WO 98 / 35003, WO 98 / 35004, WO 98 / 35005, and WO 98 / 35006; cationic ester surfactants as discussed in US patents Nos. 4,228,042, 4,239,660 4,260,529 and US 6,022,844; and amino surfactants as discussed in US 6,221 ,825 and WO 00 / 47708, specifically amido propyldimethyl amine (APA).
[0174] Compositions according to the invention may comprise at least one builder. In the context of the present invention, no distinction will be made between builders and such components elsewhere called "co-builders”. Examples of builders are complexing agents, hereinafter also referred to as complexing agents, ion exchange compounds, and precipitating agents. Builders are selected from citrate, phosphates, silicates, carbonates, phosphonates, amino carboxylates and polycarboxylates.
[0175] In the context of the present invention, the term citrate includes the mono- and the dialkali metal salts and in particular the mono- and preferably the trisodium salt of citric acid, ammonium or substituted ammonium salts of citric acid as well as citric acid. Citrate can be used as the anhydrous compound or as the hydrate, for example as sodium citrate dihydrate. Quantities of citrate are calculated referring to anhydrous trisodium citrate.
[0176] The term phosphate includes sodium metaphosphate, sodium orthophosphate, sodium hydrogenphosphate, sodium pyrophosphate and polyphosphates such as sodium tripolyphosphate. Preferably, however, the composition according to the invention is free from phosphates and polyphosphates, with hydrogenphosphates being subsumed, for example free from trisodium phosphate, pentasodium tripolyphosphate and hexasodium metaphosphate ("phosphate-free”). In connection with phosphates and polyphosphates, "free from” should be understood within the context of the present invention as meaning that the content of phosphate and polyphosphate is in total in the range from 10 ppm to 0.2% by weight of the respective composition, determined by gravimetry.
[0177] The term "carbonates” includes alkali metal carbonates and alkali metal hydrogen carbonates, preferred are the sodium salts. Particularly preferred is Na2CO3.
[0178] Examples of phosphonates are hydroxyalkanephosphonates and aminoalkanephosphonates. Among the hydroxyalkanephosphonates, the 1 -hydroxyethane-1, 1 -diphosphonate (HEDP) is of particular importance as builder. It is preferably used as sodium salt, the disodium salt being neutral and the tetrasodium salt being alkaline (pH 9). Suitable aminoalkanephosphonates are preferably ethylene diaminetetramethylenephosphonate (EDTMP), diethylenetriaminepentamethylenephosphonate (DTPMP), and also their higher homologues. They are preferably used in the form of the neutrally reacting sodium salts, e.g., as hexasodium salt of EDTMP or as hepta- and octasodium salts of DTPMP.
[0179] Examples of amino carboxylates and polycarboxylates are nitrilotriacetates, ethylene diamine tetraacetate, diethylene triamine pentaacetate, triethylene tetraamine hexaacetate, propylene diamines tetraacetic acid, ethanoldiglycines, methylglycine diacetate, and glutamine diacetate. The term amino carboxylates and polycarboxylates also include their respective non-substituted or substituted ammonium salts and the alkali metal salts such as the sodium salts, in particular of the respective fully neutralized compound.
[0180] Silicates in the context of the present invention include in particular sodium disilicate and sodium metasilicate, alumosilicates such as for example zeolites and sheet silicates, in particular those of the formula o-Na2Si2O5, p- Na2Si2C>5, and 5-Na2Si2C>5.
[0181] Compositions according to the invention may contain one or more builder selected from materials not being mentioned above. Examples of builders are a-hydroxypropionic acid and oxidized starch.
[0182] In one embodiment of the present invention, builder is selected from polycarboxylates. The term "polycarboxylates” includes non-polymeric polycarboxylates such as succinic acid, C2-Ci6-alkyl disuccinates, C2-Ci6-alkenyl disuccinates, ethylene diamine N,N'-disuccinic acid, tartaric acid diacetate, alkali metal malonates, tartaric acid monoacetate, propanetricarboxylic acid, butanetetracarboxylic acid and cyclopentanetetracarboxylic acid.
[0183] Oligomeric or polymeric polycarboxylates are for example polyaspartic acid or in particular alkali metal salts of (meth)acrylic acid homopolymers or (meth)acrylic acid copolymers.
[0184] Suitable co-monomers are monoethylenically unsaturated dicarboxylic acids such as maleic acid, fumaric acid, maleic anhydride, itaconic acid and citraconic acid. A suitable polymer is in particular polyacrylic acid, which preferably has a weight-average molecular weight Mw in the range from 2000 to 40 000 g / mol, preferably 2000 to 10 000 g / mol, in particular 3000 to 8000 g / mol. Further suitable copolymeric polycarboxylates are in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid and / or fumaric acid.
[0185] It is also possible to use copolymers of at least one monomer from the group consisting of monoethylenically unsaturated Ca-Cio-mono- or C4-Cio-dicarboxylic acids or anhydrides thereof, such as maleic acid, maleic anhydride, acrylic acid, methacrylic acid, fumaric acid, itaconic acid and citraconic acid, with at least one hydrophilically or hydrophobically modified co-monomer as listed below.
[0186] Suitable hydrophobic co-monomers are, for example, isobutene, diisobutene, butene, pentene, hexene and styrene, olefins with ten or more carbon atoms or mixtures thereof, such as, for example, 1 -decene, 1 -dodecene, 1 -tetradecene, 1 -hexadecene, 1 -octadecene, 1-eicosene, 1-docosene, 1 -tetracosene and 1 -hexacosene, 622-0- olefin, a mixture of C2o-C24-a-olefins and polyisobutene having on average 12 to 100 carbon atoms per molecule.
[0187] Suitable hydrophilic co-monomers are monomers with sulfonate or phosphonate groups, and also non-ionic monomers with hydroxyl function or alkylene oxide groups. By way of example, mention may be made of: allyl alcohol, isoprenol, methoxypolyethylene glycol (meth)acrylate, methoxypolypropylene glycol (meth)acrylate, methoxypolybutylene glycol (meth)acrylate, methoxypoly(propylene oxide-co-ethylene oxide) (meth)acrylate, ethoxypolyethylene glycol (meth)acrylate, ethoxypolypropylene glycol (meth)acrylate, ethoxypolybutylene glycol (meth)acrylate and ethoxypoly(propylene oxide-co-ethylene oxide) (meth)acrylate. Polyalkylene glycols here can comprise 3 to 50, in particular 5 to 40 and especially 10 to 30 alkylene oxide units per molecule.
[0188] Particularly preferred sulfonic-acid-group-containing monomers here are 1 -acrylamido-1 -propanesulfonic acid, 2- acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-methacrylamido-2- methylpropanesulfonic acid, 3-methacrylamido-2-hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid, allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3-(2-propenyloxy)propanesulfonic acid, 2-methyl-2-propene-1 -sulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 2- sulfoethyl methacrylate, 3-sulfopropyl methacrylate, sulfomethacrylamide, sulfomethylmethacrylamide, and salts of said acids, such as sodium, potassium or ammonium salts thereof.
[0189] Particularly preferred phosphonate-group-containing monomers are vinylphosphonic acid and its salts.
[0190] Moreover, amphoteric polymers can also be used as builders.
[0191] Compositions according to the invention can comprise, for example, in the range from in total 0.1 to 70% by weight, preferably 10 to 50% by weight, preferably up to 20% by weight, of builder(s), especially in the case of solid formulations. Liquid formulations according to the invention preferably comprise in the range of from 0.1 to 8% by weight of builder.
[0192] Formulations according to the invention can comprise one or more alkali carriers. Alkali carriers ensure, for example, a pH of at least 9 if an alkaline pH is desired. Of suitability are, for example, the alkali metal carbonates, the alkali metal hydrogen carbonates, and alkali metal metasilicates mentioned above, and, additionally, alkali metal hydroxides. A preferred alkali metal is in each case potassium, particular preference being given to sodium. In one embodiment of the present invention, a pH >7 is adjusted by using amines, preferably alkanolamines, more preferably triethanolamine.
[0193] In one embodiment of the present invention, the composition or laundry formulation according to the invention comprises additionally at least one enzyme. In one embodiment, the composition according to the present invention additionally comprises at least one enzyme.
[0194] Preferably, the at least one enzyme is a detergent enzyme.
[0195] In one embodiment, the enzyme is classified as an oxidoreductase (EC 1), a transferase (EC 2), a hydrolase (EC 3), a lyase (EC 4), an isomerase (EC 5), or a ligase (EC 6). The EC-numbering is according to Enzyme Nomenclature, Recommendations (1992) of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology including its supplements published 1993-1999. Preferably, the enzyme is a hydrolase (EC 3).
[0196] In a preferred embodiment, the enzyme is selected from the group consisting of proteases, amylases, lipases, cellulases, mannanases, hemicellulases, phospholipases, esterases, pectinases, lactases, peroxidases, xylanases, cutinases, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, beta-glucanases, arabinosidases, hyaluronidases, chondroitinases, laccases, nucleases, DNase, phosphodiesterases, phytases, carbohydrases, galactanases, xanthanases, xyloglucanases, oxidoreductase, perhydrolases, aminopeptidase, asparaginase, carbohydrase, carboxypeptidase, catalase, chitinase, cyclodextrin glycosyltransferase, alpha-galactosidase, betagalactosidase, glucoamylase, alpha-glucosidase, beta-glucosidase, invertase, ribonuclease, transglutaminase, and dispersins, and combinations of at least two of the foregoing types. More preferably, the enzyme is selected from the group consisting of proteases, amylases, lipases, cellulases, mannanases, xylanases, DNases, dispersins, pectinases, oxidoreductases, and cutinases, and combinations of at least two of the foregoing types. Most preferably, the enzyme is a protease, preferably, a serine protease, more preferably, a subtilisin protease.
[0197] Preferably, the protease is a protease with at least 90% sequence identity to SEQ ID NO: 22 of EP1921147B1 and having the amino acid substitution R101 E (according to BPN' numbering). Preferably, the amylase is an amylase with at least 90% sequence identity to SEQ ID NO: 54 of WO2021032881 A1.
[0198] The composition of the present invention can comprise one type of enzyme or more than one enzyme of different types, e.g., an amylase and a protease, or more than one enzyme of the same type, e.g., two or more different proteases, or mixtures thereof, e.g., an amylase and two different proteases.
[0199] The enzyme(s) can be incorporated into the composition at levels sufficient to provide an effective amount for achieving a beneficial effect, preferably for primary washing effects and / or secondary washing effects, like antigreying or antipilling effects (e.g., in case of cellulases). Preferably, the enzyme is present in the composition at levels from about 0.00001 % to about 5%, preferably from about 0.00001 % to about 2%, more preferably from about 0.0001 % to about 1 %, or even more preferably from about 0.001 % to about 0.5% enzyme protein by weight of the composition.
[0200] The skilled person will understand that the above-described enzymes may also be part of microorganisms, probiotics and / or prebiotics.
[0201] Preferably, the enzyme-containing composition further comprises an enzyme stabilizing system.
[0202] Preferably, the enzyme-containing composition described herein comprises from about 0.001 % to about 10%, from about 0.005% to about 8%, or from about 0.01 % to about 6%, by weight of the composition, of an enzyme stabilizing system. The enzyme stabilizing system can be any stabilizing system which is compatible with the enzyme.
[0203] Preferably, the enzyme stabilizing system comprises at least one compound selected from the group consisting of polyols (preferably, 1 ,3-propanediol, ethylene glycol, glycerol, 1 ,2-propanediol, or sorbitol), inorganic salts (preferably, CaCl2, MgCh, or NaCI), short chain (preferably, C1-C3) carboxylic acids or salts thereof (preferably, formic acid, formate (preferably, sodium formate), acetic acid, acetate, or lactate), borate, boric acid, boronic acids (preferably, 4-formyl phenylboronic acid (4-FPBA)), peptide aldehydes (preferably, Z-VAL-H or Z-GAY-H), peptide acetals, and peptide aldehyde hydrosulfite adducts. Preferably, the enzyme stabilizing system comprises a combination of at least two of the compounds selected from the group consisting of salts, polyols, and short chain carboxylic acids and preferably one or more of the compounds selected from the group consisting of borate, boric acid, boronic acids (preferably, 4-formyl phenylboronic acid (4-FPBA)), peptide aldehydes, peptide acetals, and peptide aldehyde hydrosulfite adducts. In particular, if proteases are present in the composition, protease inhibitors may be added, preferably selected from borate, boric acid, boronic acids (preferably, 4-FPBA), peptide aldehydes (preferably, peptide aldehydes like Z-VAL-H or Z-GAY-H), peptide acetals, and peptide aldehyde hydrosulfite adducts.
[0204] Compositions according to the invention may comprise one or more bleaching agent (bleaches). Preferred bleaches are selected from sodium perborate, anhydrous or, for example, as the monohydrate or as the tetrahydrate or so-called dihydrate, sodium percarbonate, anhydrous or, for example, as the monohydrate, and sodium persulfate, where the term "persulfate” in each case includes the salt of the peracid H2SO5 and also the peroxodisulfate.
[0205] In this connection, the alkali metal salts can in each case also be alkali metal hydrogen carbonate, alkali metal hydrogen perborate and alkali metal hydrogen persulfate. However, the dialkali metal salts are preferred in each case. Formulations according to the invention can comprise one or more bleach catalysts. Bleach catalysts can be selected from oxaziridinium-based bleach catalysts, bleach-boosting transition metal salts or transition metal complexes such as, for example, manganese-, iron-, cobalt-, ruthenium- or molybdenum-salen complexes or carbonyl complexes. Manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium and copper complexes with nitrogen-containing tripod ligands and also cobalt-, iron-, copper- and ruthenium-amine complexes can also be used as bleach catalysts.
[0206] Formulations according to the invention can comprise one or more bleach activators, for example tetraacetyl ethylene diamine, tetraacetylmethylene diamine, tetraacetylglycoluril, tetraacetylhexylene diamine, acylated phenolsulfonates such as for example n-nonanoyl- or isononanoyloxybenzene sulfonates, (S)NOBS, LOBS, DOBA, PAP, N-methylmorpholinium-acetonitrile salts ("MMA salts”), trimethylammonium acetonitrile salts, N-acylimides such as, for example, N-nonanoylsuccinimide, 1 ,5-diacetyl-2,2-dioxohexahydro-1 ,3,5-triazine ("DADHT”) or nitrile quats (trimethylammonium acetonitrile salts).
[0207] As precursors of H2O2 peroxides come into consideration. I. e. every compound which is capable of yielding hydrogen peroxide in aqueous solutions, for example, the organic and inorganic peroxides known in the literature and available commercially that bleach textile materials at conventional washing temperatures, for example at from 10 to 95°C.
[0208] Preferably, however, inorganic peroxides are used, for example persulfates, perborates, percarbonates and / or persilicates. They are typically used in an amount of 2-80 wt-%, preferably of 4-30 wt-%, based on the weight of the composition.
[0209] O
[0210] R — C—0—OM
[0211] Typically, the compound of formula (1) , as described in more detail below, is present in the composition in an amount of 0.05-15 wt-%, preferably from 0.1 to 10 wt-%, based on the weight of the total composition.
[0212] Examples of suitable inorganic peroxides are sodium perborate tetrahydrate or sodium perborate monohydrate, sodium percarbonate, inorganic peroxyacid compounds, such as for example potassium monopersulphate (MPS). If organic or inorganic peroxy acids are used as the peroxygen compound, the amount thereof will normally be within the range of about 2-80 wt-%, preferably from 4-30 wt-%, based on the weight of the composition.
[0213] The organic peroxides are, for example, mono- or poly-peroxides, urea peroxides, a combination of a C i-C4al kanol oxidase and Ci-C4alkanol (Such as methanol oxidase and ethanol as described in WO95 / 07972), alkylhydroxy peroxides, such as cumene hydroperoxide and t-butyl hydroperoxide. The peroxides may be in a variety of crystalline forms and have different water contents, and they may also be used together with other inorganic or organic compounds in order to improve their storage stability.
[0214] As oxidants, peroxo acids can also be used. One example are organic mono peracids of formula (1)
[0215] O
[0216] R -— C -O -OM wherein
[0217] M signifies hydrogen or a cation,
[0218] Rw signifies unsubstituted Ci-Cisalkyl; substituted Ci-Cisalkyl; unsubstituted aryl; substituted aryl; -(Ci-Cealky lene)- aryl, wherein the alkylene and / or the alkyl group may be substituted; and phthalimidoCi-Csalkylene, wherein the phthalimido and / or the alkylene group may be substituted.
[0219] O
[0220] R C_O_OM
[0221] Preferred mono organic peroxy acids and their salts are those of formula “ wherein
[0222] M signifies hydrogen or an alkali metal, and
[0223] R’ 19 signifies unsubstituted Ci-C4alkyl; phenyl;-Ci-C2alkylene-phenyl or phthalimidoCi-Csalkylene.
[0224] Especially preferred is CH3COOOH and its alkali salts.
[0225] Especially preferred is also e-phthalimido peroxy hexanoic acid and its alkali salts (PAP).
[0226] Also suitable are diperoxyacids, for example, 1 ,12-diperoxydodecanedioic acid (DPDA), 1 ,9-diperoxyazelaic acid, diperoxybrassilic acid, diperoxysebasic acid, diperoxyisophthalic acid, 2-decyldiperoxybutane-1 ,4-diotic acid and 4,4’-sulphonylbisperoxybenzoic acid.
[0227] In some cases, the use of an additional bleach activator may be of advantage.
[0228] The term bleach activator is frequently used as a synonym for peroxyacid bleach precursor. All the above mentioned peroxy compounds may be utilized alone or in conjunction with a peroxyacid bleach precursor.
[0229] Such precursors are the corresponding carboxyacid or the corresponding carboxyanhydride or the corresponding carbonylchlorid, or amides, or esters, which can form the peroxy acids on perhydrolysis. Such reactions are commonly known. Peroxyacid bleach precursors are known and amply described in literature, such as in the British Patents 836988; 864,798; 907,356; 1,003,310 and 1,519,351; German Patent 3,337,921; EP-A-0185522; EP-A-0174132; EP-A- 0120591; and U.S. Pat. Nos. 1,246,339; 3,332,882; 4,128,494; 4,412,934 and 4,675,393.
[0230] Suitable bleach activators include the bleach activators, that carry O- and / or N-acyl groups and / or unsubstituted or substituted benzoyl groups. Preference is given to polyacylated alkylenediamines, especially tetraacetylethylenediamine (TAED); acylated glycolurils, especially tetraacetyl glycol urea (TAGU), N,N-diacetyl- N,N-dimethylurea (DDU); sodium-4-benzoyloxy benzene sulphonate (SBOBS); sodium-1-methyl-2-benzoyloxy benzene-4-sulphonate; sodium-4-methyl-3-benzoloxy benzoate; trimethyl ammonium toluyloxy-benzene sulphonate; acylated triazine derivatives, especially 1 ,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT); compounds of formula (10): wherein R22 is a sulfonate group, a carboxylic acid group or a carboxylate group, and wherein R21 is linear or branched (Cz-Ci5)alkyl, especially activators known under the names SNOBS, SLOBS and DOBA; acylated polyhydric alcohols, especially triacetin, ethylene glycol diacetate and 2,5-diacetoxy-2,5-dihydrofuran; and also acetylated sorbitol and mannitol and acylated sugar derivatives, especially pentaacetylglucose (PAG), sucrose polyacetate (SUPA), pentaacetylfructose, tetraacetylxylose and octaacetyllactose as well as acetylated, optionally N-alkylated glucamine and gluconolactone. It is also possible to use the combinations of conventional bleach activators known from German Patent Application DE-A-4443 177. Nitrile compounds that form perimine acids with peroxides also come into consideration as bleach activators.
[0231] Another useful class of peroxyacid bleach precursors is that of the cationic i.e. quaternary ammonium substituted peroxyacid precursors as disclosed in US Pat. Nos. 4,751,015 and 4,397,757, in EP-A0284292 and EP-A-331,229. Examples of peroxyacid bleach precursors of this class are: 2-(N,N,N-trimethyl ammonium) ethyl sodium-4- sulphonphenyl carbonate chloride - (SPCC), N-octyl,N,N-dimehyl-N10 -carbophenoxy decyl ammonium chloride - (ODC), 3-(N,N,N-trimethyl ammonium) propyl sodium-4-sulphophenyl carboxylate and N,N,N-trimethyl ammonium toluyloxy benzene sulphonate.
[0232] It is also possible to use additional bleach catalysts, which are commonly known, for example transition metal complexes as disclosed in EP 1194514, EP 1383857 or W004 / 007657.
[0233] Formulations according to the invention can comprise one or more corrosion inhibitors. In the present case, this is to be understood as including those compounds which inhibit the corrosion of metal. Examples of suitable corrosion inhibitors are triazoles, in particular benzotriazoles, bisbenzotri azoles, aminotriazoles, alkylaminotriazoles, also phenol derivatives such as, for example, hydroquinone, pyrocatechol, hydroxyhydroquinone, gallic acid, phloroglucinol or pyrogallol.
[0234] In one embodiment of the present invention, formulations according to the invention comprise in total in the range from 0.1 to 1.5% by weight of corrosion inhibitor.
[0235] Formulations according to the invention may also comprise further cleaning polymers and / or soil release polymers.
[0236] The additional cleaning polymers may include, without limitation, "multifunctional alkoxylated polyethylene imines” (for example BASF's Sokalan® HP20), "multifunctional alkoxylated diamines” (for example BASF's Sokalan® HP96), BASF's Sokalan® SR400 A and also terephthalic acid-based polyesters like Clariant's TexCare®, such as TexCare® SRN 170, TexCare® SRN 172, TexCare® SRN 260, TexCare® SRN 260 SG Terra and TexCare® SRA 300 as well as distinct combinations of all of the before mentioned polymers.
[0237] Suitable multifunctional alkoxylated polyethylene imines are typically ethoxylated polyethylene imines with a weightaverage molecular weight Mw in the range from 3000 to 250000, preferably 5000 to 200000, more preferably 8000 to 100000, more preferably 8000 to 50000, more preferably 10000 to 30000, and most preferably 10000 to 20000 g / mol. Suitable multifunctional alkoxylated polyethylene imines have 80 wt.% to 99 wt.%, preferably 85 wt.% to 99 wt.%, more preferably 90 wt.% to 98 wt.%, most preferably 93 wt.% to 97 wt.% or 94 wt.% to 96 wt.% ethylene oxide side chains, based on the total weight of the materials. Ethoxylated polyethylene imines are typically based on a polyethylene imine core and a polyethylene oxide shell. Suitable polyethylene imine core molecules are polyethylene imines with a weight-average molecular weight Mw in the range of 500 to 5000 g / mol. Preferably employed is a molecular weight from 500 to 1000 g / mol, even more preferred is a Mw of 600 to 800 g / mol. The ethoxylated polymer then has on average 5 to 50, preferably 10 to 35 and even more preferably 20 to 35 ethylene oxide (EC) units per NH-functional group.
[0238] Suitable multifunctional alkoxylated diamines are typically ethoxylated C2 to C12 alkylene diamines, preferably hexamethylene diamine, which are further quaternized and optionally sulfated (wherein the diamine is not ethylenediamine). Typical multifunctional alkoxylated diamines have a weight-average molecular weight Mw in the range from 2000 to 10000, more preferably 3000 to 8000, and most preferably 4000 to 6000 g / mol. In a preferred embodiment of the invention, ethoxylated hexamethylene diamine, furthermore quaternized and sulfated, may be employed, which contains on average 10 to 50, preferably 15 to 40 and even more preferably 20 to 30 ethylene oxide (EC) groups per NH-functional group, and which preferably bears two cationic ammonium groups and two anionic sulfate groups.
[0239] Suitable polymers also comprise graft polymer comprising (A) a polyalkylene oxide backbone (A) which comprises at least one structural unit derived from the group of monomers consisting of ethylene oxide, 1 ,2-propylene oxide, 1 ,2-butylene oxide, 2,3-butylene oxide, 1 ,2-pentene oxide and 2,3-pentene oxide, and
[0240] (B) polymeric sidechains (B) grafted onto the polyalkylene oxide backbone (A), wherein said polymeric sidechains (B) comprise at least one vinyl ester monomer (B1) and optionally N-vinylpyrrolidone as further monomer (B2).
[0241] It is noted that the cleaning compositions of the invention can also comprise at least one propoxylated ethylenediamine of the invention and in addition at least one propoxylated diamine that does not form part of the claims, such as propoxylated ethylenediamines having on average less than 28 PO units per mol EDA or having on average more than 52 PO units per mol EDA.
[0242] In a preferred embodiment of the present invention, the cleaning compositions may contain at least one multifunctional alkoxylated polyethylene imine and / or at least one multifunctional alkoxylated diamine to improve the cleaning performance, such as preferably improve the stain removal ability, especially the primary detergency of particulate stains on polyester fabrics of laundry detergents. The multifunctional polyethylene imines or multifunctional diamines or mixtures thereof according to the descriptions above may be added to the laundry detergents and cleaning compositions in amounts of generally from 0.05 to 15 wt.%, preferably from 0.1 to 10 wt.% and more preferably from 0.25 to 5 wt.% and even as low as up to 2 wt.%, based on the particular overall composition, including other components and water and / or solvents.
[0243] In another preferred embodiment of the present invention, the cleaning compositions may contain at least one terephthalic acid-based polyester, employed as soil release polymer, to improve the whiteness of the fabrics after the wash, especially the whiteness of polyester fabrics.
[0244] Thus, one aspect of the present invention is a laundry detergent composition, in particular a liquid laundry detergent, comprising (i) at least one inventive compound and (ii) at least one compound selected from multifunctional alkoxylated polyethylene imines, multifunctional alkoxylated diamines and terephthalic acid-based polyesters, and mixtures thereof.
[0245] In one embodiment of the present invention, the ratio of the at least one inventive compound and (ii) the at least one compound selected from multifunctional polyethylene imines and multifunctional diamines and mixtures thereof, is from 10: 1 to 1 :10, preferably from 5:1 to 1 :5 and more preferably from 3:1 to 1 :3.
[0246] Laundry formulations comprising the inventive compound may also comprise at least one antimicrobial agent (also often named preservatives). The composition may contain one or more antimicrobial agents and / or preservatives as listed in patent WO2021 / 115912 A1 on pages 35 to 39.
[0247] Especially of interest are the following antimicrobial agents and / or preservatives:
[0248] 4,4'-dichloro 2-hydroxydiphenyl ether (CAS-No. 3380-30-1), further names: 5-chloro-2-(4-chlorophenoxy) phenol, Diclosan, DCPP, which is commercially avail-able as a solution of 30 wt% of 4,4'-dichloro 2-hydroxydiphenyl ether in 1 ,2 propyl-eneglycol under the trade name Tinosan® HP 100 (BASF); 2-Phenoxyethanol (CAS-no. 122-99-6, further names: Phenoxyethanol, Methylphenylglycol, Phenoxetol, ethylene glycol phenyl ether, Ethylene glycol monophenyl ether, Protectol® PE); 2-bromo-2-nitropropane-1,3-diol (CAS-No. 52-51-7, further names: 2-bromo-2- nitro-1 ,3-propanediol, Bronopol®, Protectol® BN, Myacide AS); Glutaraldehyde (CAS-No. 111-30-8, further names: 1-5-pentandial, pentane-1 , 5-dial, glutaral, glutardialdehyde, Protectol® GA, Protectol® GA 50, Myacide® GA); Glyoxal (CAS No. 107-22-2; further names: ethandial, oxylaldehyde, 1 ,2-ethandial, Protectol® GL); 2-butyl- benzo[d]isothiazol-3-one (BBIT, CAS No. 4299-07-4); 2-methyl-2H-isothiazol-3-one (MIT, CAS No 2682-20-4); 2- octyl-2H-isothiazol-3-one (OIT, CAS No. 26530-20-1); 5-Chloro-2-methyl-2H-isothiazol-3-one (CIT, CMIT, CAS No. 26172-55-4); Mixture of 5-chloro-2-methyl-2H- isothiazol-3-one (CMIT, EINECS 247-500-7) and 2-methyl-2H- isothiazol-3-one (MIT, EINECS 220-239-6) (Mixture of CMIT / MIT, CAS No. 55965-84-9); 1 ,2-benzisothiazol-3(2H)- one (BIT, CAS No. 2634-33-5); Hexa-2,4-dienoic acid (Sorbic acid, CAS No. 110-44-1) and its salts, e.g. calcium sorbate, sodium sorbate, potassium (E,E)-hexa-2,4-dienoate (Potassium Sorbate, CAS No. 24634-61-5); Lactic acid and its salts; L-(+)-lactic acid (CAS No. 79-33-4); Benzoic acid and its sodium salt (CAS No 65-85-0, CAS No. 532-32-1) and salts of benzoic acid e.g. ammonium benzoate, calcium benzoate, magnesium benzoate, MEA- benzoate, potassium benzoate; Salicylic acid and its salts, e.g. calcium salicylate, magnesium salicylate, MEA salicylate, sodium salicylate, potassium salicylate, TEA salicylate; Benzalkonium chloride, bromide and saccharinate, e.g. benzalkonium chloride, benzalkonium bromide, benzalkonium saccharinate (CAS Nos 8001 -54- 5, 63449-41-2, 91080-29-4, 68989-01-5, 68424-85-1 , 68391-01-5, 61789-y71-7, 85409-22-9); Didecyldimethylammonium chloride (DDAC, CAS No. 68424-95-3 and CAS No. 7173-51-5); N-(3-aminopropyl)-N- dodecylpropane-1 ,3-diamine (Diamine, CAS No. 2372-82-9); Peracetic acid (CAS No. 79-21-0); Hydrogen peroxide (CAS No. 7722-84-1).
[0249] The antimicrobial agent is added to the composition in a concentration of 0.001 to 10% relative to the total weight of the composition.
[0250] Preferably, the composition contains 2-Phenoxyethanol in a concentration of 0.1 to 2% or 4, 4' -dichloro 2- hydroxydiphenyl ether (DCPP) in a concentration of 0.005 to 0.6%.
[0251] The invention thus further encompasses a method of preserving an aqueous composition according to the invention against microbial contamination or growth, which method comprises addition of 2-Phenoxyethanol. The invention thus further encompasses a method of providing an antimicrobial effect on textiles after treatment with a solid laundry detergent e.g., powders, granulates, capsules, tablets, bars etc.), a liquid laundry detergent, a softener or an after rinse containing 4, 4' -dichloro 2-hydroxydiphenyl ether (DCPP).
[0252] In a further embodiment, this invention also encompasses a composition comprising an inventive compound as descried herein before, further comprises an antimicrobial agent as disclosed hereinafter, preferably selected from the group consisting of 2-phenoxyethanol, more preferably comprising said antimicrobial agent in an amount ranging from 2ppm to 5% by weight of the composition; even more preferably comprising 0.1 to 2% of phenoxyethanol.
[0253] In a further embodiment, this invention also encompasses a method of preserving an aqueous composition against microbial contamination or growth, such composition comprising an inventive compound as described herein before, such composition being preferably a detergent composition, such method comprising adding at least one antimicrobial agent selected from the disclosed antimicrobial agents as disclosed hereinafter, such antimicrobial agent preferably being 2-phenoxyethanol.
[0254] In a further embodiment, this invention also encompasses a composition, preferably a cleaning composition, more preferably a liquid laundry detergent composition or a liquid hand dish composition, even more preferably a liquid laundry detergent composition, or a liquid softener composition for use in laundry, such composition comprising an inventive compound as described herein before, such composition further comprising 4,4'-dichoro 2- hydroxydiphenylether in a concentration from 0.001 to 3%, preferably 0.002 to 1 %, more preferably 0.01 to 0.6%, each by weight of the composition.
[0255] In a further embodiment, this invention also encompasses a method of laundering fabric or of cleaning hard surfaces, which method comprises treating a fabric or a hard surface with a cleaning composition, more preferably a liquid laundry detergent composition or a liquid hand dish composition, even more preferably a liquid laundry detergent composition, or a liquid softener composition for use in laundry, such composition comprising an inventive compound as described herein before, such composition further comprising 4,4'-dichoro 2-hydroxydiphenylether.
[0256] The term „dye fixation agent”, as used herein, relates to compounds that attenuate or even terminate dye bleeding of colored fabrics during the washing process. Dye fixation agents include, but are not limited to cationic dye fixation agents, crosslinking fixation agents and formaldehyde-based fixation agents. The skilled person is well-aware of these compounds and may purchase commercially available products from BASF SE, Huntsman, Archroma, Fineotex, Biotex Malaysia or Dystar. Exemplified, but not limiting dye fixation agents are Basilen Fixing Agent F- RP, Albafix ECO, Finofix NF, poly DADMAC, Polyamine (DCDA-DETA, Epichloro-DMA, Epichloro-DETA, etc.).
[0257] Formulations according to the invention may also comprise water and / or additional organic solvents, e.g., ethanol or propylene glycol. Further optional ingredients may be but are not limited to viscosity modifiers, cationic surfactants, foam boosting or foam reducing agents, perfumes, dyes, optical brighteners, and dye transfer inhibiting agents.
[0258] (b) General cleaning compositions and formulations
[0259] The liquid formulations disclosed in this chapter may comprise 0 to 2 % 2 -phenoxyethanol, preferably about 1 %, in addition to all other mentioned ingredients.
[0260] The above and below disclosed liquid formulations may comprise 0-0,2% 4,4'-dichoro 2-hydroxydiphenylether, preferably about 0,15 %, in addition to all other mentioned ingredients. The bleach-free solid laundry compositions may comprise 0-0,2% 4,4'-dichoro 2-hydroxydiphenylether, preferably about 0, 15 %, in addition to all other mentioned ingredients.
[0261] The formulations disclosed in this chapter may - in addition to all other mentioned ingredients - comprise one or more enzymes selected from those disclosed herein above, more preferably a protease and / or an amylase, wherein even more preferably the protease is a protease with at least 90% sequence identity to SEQ ID NO: 22 of EP1921147B1 and having the amino acid substitution R101 E (according to BPN' numbering) and wherein the amylase is an amylase with at least 90% sequence identity to SEQ ID NO: 54 of WQ2021032881A1 , such enzyme(s) preferably being present in the formulations at levels from about 0.00001 % to about 5%, preferably from about 0.00001 % to about 2%, more preferably from about 0.0001 % to about 1 %, or even more preferably from about 0.001 % to about 0.5% enzyme protein by weight of the composition.
[0262] The following compositions shown below including those in the tables disclose general cleaning compositions of certain types, which correspond to typical compositions correlating with typical washing conditions as typically employed in various regions and countries of the world. The at least one inventive compound may be added to such formulation(s) in suitable amounts as outlined herein.
[0263] When the shown composition does not comprise an inventive compound, such composition is a comparative composition. When it comprises an inventive compound, especially in the amounts that are described herein as preferred, more preferred etc. ranges, such compositions are considered to fall within the scope of the present invention.
[0264] In a preferred embodiment the at least one propoxylated ethylenediamine (as defined in any of the embodiments herein, especially the Embodiments 1 to 11 ; propoxylated ethylenediamines in this section also named "inventive compound”) is used in a laundry detergent. Liquid laundry detergents according to the present invention are composed of:
[0265] 0,05 - 20% of at least one inventive compound
[0266] 1 - 50% of surfactants
[0267] 0,1 - 40% of builders, cobuilders and / or chelating agents
[0268] 0,1 - 50% other adjuncts water to add up 100%.
[0269] Preferred liquid laundry detergents according to the present invention are composed of:
[0270] 0,2 - 6% of at least one inventive compound
[0271] 5 - 40% of anionic surfactants selected from C10-C15- LAS and C10-C18 alkyl ether sulfates containing 1 - 5 ethoxy-units
[0272] 1,5 - 10% of nonionic surfactants selected from Cio-C -alkyl ethoxylates containing 3 - 10 ethoxy-units
[0273] 2 - 20% of soluble organic builders / cobuilders selected from C10-C18 fatty acids, di- and tricarboxylic acids, hydroxy-di- and hydroxytricaboxylic acids and polycarboxylic acids
[0274] 0,05 - 5% of an enzyme system containing at least one enzyme suitable for detergent use and preferably also an enzyme stabilizing system
[0275] 0,5 - 20% of mono- or diols selected from ethanol, isopropanol, ethylene glycol, or propylene glycol
[0276] 0,1 - 20% other adjuncts water to add up to 100%.
[0277] Solid laundry detergents (like e.g., powders, granules or tablets) according to the present invention are composed of:
[0278] 0,05 - 20% of at least one inventive compound
[0279] 1 - 50% of surfactants
[0280] 0,1 - 80% of builders, cobuilders and / or chelating agents
[0281] 0-50% fillers
[0282] 0 - 40% bleach actives
[0283] 0, 1 - 30% other adjuncts and / or water wherein the sum of the ingredients adds up 100%.
[0284] Preferred solid laundry detergents according to the present invention are composed of:
[0285] 0,2 - 6% of at least one inventive compound
[0286] 5 - 30% of anionic surfactants selected from C10-C15- LAS, C10-C18 alkyl sulfates and C10-C18 alkyl ether sulfates containing 1-5 ethoxy-units
[0287] 1,5 - 7,5% of non-ionic surfactants selected from Cio-C -alkyl ethoxylates containing 3 - 10 ethoxy-units 5 - 50% of inorganic builders selected from sodium carbonate, sodium bicarbonate, zeolites, soluble silicates, sodium sulfate 0,5 - 15% of cobuilders selected from C10-C18 fatty acids, di- and tricarboxylic acids, hydroxydi- and hydroxytricarboxylic acids and polycarboxylic acids
[0288] 0,1 - 5% of an enzyme system containing at least one enzyme suitable for detergent use and preferably also an enzyme stabilizing system
[0289] 0,1 - 20% other adjuncts water to add up to 100%.
[0290] In a preferred embodiment the polymer according to the present invention is used in a manual dish wash detergent.
[0291] Liquid manual dish wash detergents according to the present invention are composed of:
[0292] 0,05 - 10% of at least one inventive compound
[0293] 1 - 50% of surfactants
[0294] 0, 1 - 50% of other adjuncts water to add up 100%.
[0295] Preferred liquid manual dish wash detergents according to the present invention are composed of:
[0296] 0,2 - 5% of at least one inventive compound
[0297] 5 - 40% of anionic surfactants selected from C10-C15- LAS, C10-C18 alkyl ether sulfates containing 1 -5 ethoxy-units, and C10-C18 alkyl sulfate
[0298] 0 - 10% of Cocamidopropylbetaine
[0299] 0 - 10% of Lauramine oxide
[0300] 0 - 2% of a non-ionic surfactant, preferably a C -Guerbet alcohol alkoxy late
[0301] 0 - 5% of an enzyme, preferably Amylase, and preferably also an enzyme stabilizing system
[0302] 0,5 - 20% of mono- or diols selected from ethanol, isopropanol, ethylene glycol, or propylene glyclol
[0303] 0,1 - 20% other adjuncts water to add up to 100%
[0304] As the polymers of the invention are biodegradable, and especially the cleaning formulations typically have a pH of about 7 or higher, and additionally often contain also enzymes - which are included into such cleaning formulations to degrade biodegradable stuff such as grease, proteins, polysaccharides etc. which are present in the stains and dirt which shall be removed by the cleaning compositions - some consideration is needed to be taken to formulate those bio-degradable polymers of the invention. Such formulations suitable are in principle known, and include the formulation in solids - where the enzymes and the polymers can be separated by coatings or adding them in separate particles which are mixed - and liquids and semi-liquids, where the polymers and the enzymes can be separated by formulating them in different compartments, such as different compartments of multi-chamber- pouches or bottles having different chambers, from which the liquids are poured out at the same time in a predefined amount to assure the application of the right amount per individual point of use of each component from each chamber. Such multi-compartment-pouches and bottles etc. are known to a person of skill as well.
[0305] The following table shows general cleaning compositions of certain types, which correspond to typical compositions correlating with typical washing conditions as typically employed in various regions and countries of the world. The at least one inventive compound may be added to such formulation(s) in suitable amounts as outlined herein.
[0306] Table 1 : General formula for laundry detergent compositions according to the invention:
[0307] Table 2: Liquid laundry frame formulations according to the invention:
[0308] *Without inventive compound the formulations are comparative examples.
[0309] Table 2 - continued: Liquid laundry frame formulations according to the invention: *Without inventive compound the formulations are comparative examples.
[0310] Table 3: Laundry powder frame formulations according to the invention: Table 3 - continued: Laundry powder frame formulations according to the invention:
[0311] Table 4: Liquid manual dish wash frame formulations according to the invention:
[0312] The following examples shall further illustrate the present invention without restricting the scope of the invention.
[0313] The specific embodiments as described throughout this disclosure are encompassed by the present invention as part of this invention; the various further options being disclosed in this present specification as "optional”, "preferred”, "more preferred”, "even more preferred” or "most preferred” (or "preferably” etc.) options of a specific embodiment may be individually and independently (unless such independent selection is not possible by virtue of the nature of that feature or if such independent selection is explicitly excluded) selected and then combined within any of the other embodiments (where other such options and preferences can be also selected individually and independently unless such independent selection is not possible by virtue of the nature of that feature or if such independent selection is explicitly excluded), with each and any and all such possible combinations being included as part of this invention as individual embodiments.
[0314] Examples
[0315] Below is a list of compounds used to generate data of the present application.
[0316] Table 5:
[0317] Synthesis:
[0318] Exemplified for Inventive Example 3 (1,2-ethylene diamine, propoxylated with 40 mole propylene oxide)
[0319] In a 2 1 autoclave 102.3 g 1 ,2-ethylene diamine, propoxylated with 4 mole propylene oxide (Quadrol® L, BASF SE) and 1 .7 g potassium tert, butoxide were placed and the mixture was heated to 140°C. The vessel was purged three times with nitrogen. 731.8 g propylene oxide was added continuously within 10 hours. To complete the reaction, the mixture was allowed to post-react for additional 10 hours at 140°C. The reaction mixture was stripped with nitrogen and volatile compounds were removed in vacuo (10 mbar) at 90°C for 2 hours. 825.0 g of a light orange oil was obtained (hydroxyl number 103.3 mg KOH / g; amine number 52.3 mg KOH / g).
[0320] Other examples and comparative examples were prepared in a similar way.
[0321] Polymer biodegradability
[0322] Biodegradation of polymers in in wastewater was tested in triplicate using the OECD 301 F manometric respirometry method. OECD 301 F is an aerobic test that measures biodegradation of a sample by measuring the consumption of oxygen. To a measured volume of medium, 100 mg / L test substance, which is the nominal sole source of carbon is added along with the inoculum (30 mg / L, aerated sludge taken from Mannheim wastewater treatment plant). This is stirred in a closed flask at a constant temperature (20°C or 25°C) for 28 or 56 days, respectively. The consumption of oxygen is determined by measuring the change in pressure in the apparatus using an OxiTop® C (Xylem 35 Analytics Germany Sales GmbH & Co KG). Evolved carbon dioxide is absorbed in a solution of sodium hydroxide. Nitrification inhibitors are added to the flask to prevent usage of oxygen due to nitrification. The amount of oxygen taken up by the microbial population during biodegradation of the test substance (corrected for uptake by blank inoculum, run in parallel) is expressed as a percentage of ThOD (Theoretical oxygen demand, which is measured by the elemental analysis of the compound). A positive control Glucose / Glucosamine is run along with the test samples for each cabinet.
[0323] Below is a list of polymers and their respective biodegradation after 28 days.
[0324] Table 5A:
[0325] Polymer anti-redeposition performance in laundry detergents
[0326] The following liquid laundry detergent composition (Table 6) was used as base detergent to test polymer antiredeposition performance. Polymer anti-redeposition performance were tested using the following conditions: 3000 ppm clay, 688 ppm base detergent 125°C 1 1 mM hardness / 19.6 ppm polymer.
[0327] Table 6. Liquid laundry base detergent for polymer anti-redeposition and cleaning test.
[0328] aFluorescent Brightener is disodium 4,4'-bis{[4-anilino-6-morpholino-s-triazin-2-yl]-amino}-2,2'- sti I bened isu Ifon ate or 2, 2'- ([ 1 , 1 Bi pheny l]-4, 4'-diy ldi-2, 1 -ethenediyl)bis-benzenesulfonic acid disodium salt.b3,5-bis(1 ,1-dimethylethyl)-4-hydroxybenzenepropanoic acid, methyl ester [6386-38-5]cDow Corning supplied antifoam blend 80-92% ethylmethyl, methyl(2-phenyl propyl)siloxane; 5-14% MQ Resin in octyl stearate a 3-7% modified silica.
[0329] Test preparation:
[0330] The following fabric is provided for the whiteness benefit test:
[0331] Knitted Cotton: Test fabrics, Inc 403 cotton interlock knit tubular
[0332] CW120, available from Empirical Manufacturing Company (Cincinnati, OH, USA).
[0333] The fabric was prepared according to the following method: 400g fabrics are washed in a WE Miniwasher Electrolux EWC1350 (3.5 litre water) twice using the short program (45-minute wash cycle followed by three rinse cycles; total program is 90 minutes) at 60°C with 18.6g Ariel™ Compact powder detergent, twice using the short program, at 60°C nil detergent. Fabrics are then dried in a tumble dryer on cupboard dry.
[0334] Test Method:
[0335] Each sample is run in a 96 well plate simulated washing system that uses magnetized bearings to simulate the agitation of a typical full scale washing machine according to the following conditions: 750 ppm detergent concentration, 150 piL water per well, 25°C, water hardness of 1.0 mM (3:1 Ca+2: Mg+2molar ratio), wash pH of 8.3, 3000 ppm Arizona test dust (supplied by PTI, Powder Technology Inc).
[0336] The fabric is washed for 60 minutes and dried in the dark under ambient conditions. Six 96 well plates, and eight internal replicates per 96 well plate, for a total of 48 replicates have been tested.
[0337] When the samples are dry, L*, a*, b* and CIE Wl are measured on each 96 well plate spot using a Spectrolino imaging system (Gretag Macbeth, Spectro Scan 3.273). For each treatment, the average CIE Wl is determined. Delta CIE Wl, as reported in Table below, is the difference of the average CIE Wl of the sample vs. the average CIE Wl of a control sample without the tested polymer (nil polymer).
[0338] For the whiteness index, the CIE whiteness index formula was used and delta Wl was calculated as follows: delta Wl on a substrate = Wl technology - Wl nil.
[0339] The results are shown in Table 7, inventive polymers can deliver clear anti-redeposition performance.
[0340] Table 7: Polymer anti-redeposition performance on knitted cotton
[0341] Polymer cleaning performance in laundry detergent
[0342] Polymer cleaning performance in laundry detergent were carried out with the formulation stated in Table 6 and the washing conditions for single wash cycle performance may be summarized as follows:
[0343] Machine: Launder-o-meter
[0344] Washing liquor 500 mL
[0345] Washing time 30 minutes
[0346] Washing temperature 25° C.
[0347] Detergent concentration 0.688 g / L
[0348] Water hardness 1mmol / L; (Ca:Mg) :HCO3 (4: 1):8
[0349] Soiled fabrics: WFK 20D (Sebum Bey) from CFT, PC-S-132 (High Discriminative Sebum Bey) from CFT, GSRTBB001 (Burnt Butter) from Equest
[0350] After the one cycle, soiled fabrics were twice rinsed with water, followed by shortly spin-drying and drying at room temperature over a period of 12 hours.
[0351] For each stain, there are 3 Launder-o-meter runs with 2 replicates per run, for a total of 6 replicates.
[0352] To evaluate the primary detergency of the stains, soiled fabrics were determined before and after washing using soil removal index (SRI) formula from ASTM D4265. For obtaining the reflectance values for the respective fabric both before and after washing using a reflectometer (MACH5+, a multi area color measurement instrument from ColourConsult). Higher delta reflectance values demonstrate a better primary detergency. ASTM D4265 - 14: Evaluation of Stain Removal Performance in Home Laundry
[0353] Stain Removal Index = SRI
[0354] SRI = 100 x (((delta E*(before wash - unstained) - delta E*(after wash - unstained)) I delta E*(before wash - unstained))) delta E* = ( (delat L*)2+ (delta a*)2+ (delta b*)2F
[0355] The cleaning performance of inventive polymers is summarized in Table 8. Inventive polymers can deliver clear improvement on sebum and fatty stain removal.
[0356] Table 8. Polymer sebum cleaning performance.
[0357] Method for evaluating stain removal benefit of polymers in laundry detergent.
[0358] Cleaning benefits of polymers are evaluated using automatic tergotometer. Some examples test stains suitable for this test are:
[0359] Dust Sebum on polycotton ex CFT
[0360] Highly Discriminating Sebum on polycotton ex CFT
[0361] The stains are analysed using Image Analysis System for Laundry stain removal testing before and after the wash. SBL2004 test soil strips supplied by WFK Testgewebe GmbH are used to simulate consumer soil levels (mix of body soil, food, dirt etc.). Every 1 SBL2004 strip is loaded with 8g soil. The SBL2004 test soil strips were cut into 5x5 cm squares for use in the test.
[0362] Additional ballast (background fabric swatches) is also used to simulate a fabric load and provide mechanical energy during the real laundry process. Ballast loads are comprised of knitted cotton swatches at 5x5 cm size.
[0363] The desired amount of detergent is fully dissolved by mixing with 1L water (at defined hardness) in each tergotometer pot. 60 total grams of fabrics including stains (2 internal replicates of each stain in each pot), defined amount of 5x5 cm SBL2004 and ballast are washed and rinsed in the tergotometer pot under defined conditions. The test is repeated for 4 times (4 external replicates).
[0364] All stains are tumbled dried between 60-65°C until dry, then stains are measured again using Image Analysis System for Laundry stain removal testing.
[0365] Stain Removal Index (SRI) are automatically calculated from the L, a, b values using the formula shown below. The higher the SRI, the better the stain removal.
[0366] SRI = 100*((AEb- AEa) I AEb)
[0367] AEb= ^((Lc-Lb)2+ (ac-ab)2+ (bc-bb)2)
[0368] AEa = -La)2+ (ac-aa)2+ (bc-ba)2)
[0369] Subscript ‘b’ denotes data for the stain before washing
[0370] Subscript 'a' denotes data for the stain after washing
[0371] Subscript ‘c’ denotes data for the unstained fabric
[0372] Stain Removal Performance in Liquid Detergent:
[0373] Liquid detergent composition E, F1-F3 below are prepared by traditional means known to those of ordinary skill in the art by mixing the listed ingredients (Table 9). The stain removal performance of invenive propoxylated ethylenediamine was evaluated according to method for evaluating stain removal benefit of polymers in laundry detergent; Inventive propoxylates delivered strong sebum removal benefit.
[0374] Table 9.
[0375]
[0376] Chelant = DETA + GLDA
[0377] Perfume = Free perfume + PMC (Perfume Micro Capsule) s: statistically significant versus reference.
Claims
Claims1 . Propoxylated ethylenediamine, wherein at least one of the NH-functionalities of ethylenediamine (EDA) is propoxylated, and wherein the propoxylated ethylenediamine comprises on average 28 to 52 propylene oxide (PO) units per mol EDA.
2. The propoxylated ethylenediamine according to claim 1, wherein the propoxylated ethylenediamine comprises on average not more than 48, preferably not more than 44 and more preferably not more than 42 PO units per mol EDA.
3. The propoxylated ethylenediamine according to claims 1 or 2, wherein the propoxylated ethylenediamine comprises on average at least 32, preferably at least 36 and more preferably at least 38 PO units per mol EDA.
4. The propoxylated ethylenediamine according to anyone of claims 1 to 3, wherein the weight average molecular weight (Mw) of the propoxylated ethylenediamine is in the range of from 1500 to 3200 g / mol, preferably in the range of from 1800 to 2800 g / mol and more preferably in the range of from 2000 to 2500 g / mol.
5. The propoxylated ethylenediamine according to anyone of claims 1 to 4, wherein said propoxylated ethylenediamine demonstrates at least 20%, preferably at least 40% or more preferably at least 60% biodegradability according to standard OECD 301 F after at least 56 days, preferably after 28 days.
6. The propoxylated ethylenediamine according to anyone of claims 1 to 5, wherein at least three NH- functionalities, preferably all four NH-functionalities are modified with propylene oxide (PO) units.
7. A process for preparing the propoxylated ethylenediamine according to claims 1 to 6, wherein ethylenediamine is reacted with 28 to 52 propylene oxide units per mol EDA in order to obtain the respective propoxylated ethylenediamine.
8. The process according to claim 7, wherein ethylenediamine is reacted with not more than 48, preferably not more than 44 and more preferably not more than 42 PO units per mol EDA.
9. The process according to claims 7 or 8, wherein ethylenediamine is reacted with at least 32, preferably at least 36 and more preferably at least 38 PO units per mol EDA.
10. Use of the propoxylated ethylenediamine according to any one of claims 1 to 6 in laundry detergents, in cleaning compositions, in fabric and home care products, in cosmetic formulations, as crude oil emulsion breaker, in pigment dispersions for ink jet inks, in formulations for electro plating, in cementitious compositions and / or asdispersant for agrochemical formulations, preferably in cleaning compositions and / or in fabric and home care products.
11. Use according to claim 10 in cleaning compositions and / or in fabric and home care products, preferably in cleaning compositions forI) sebum removal, and / or ii) improved removal of oily / fatty stains, and / or ill) soil removal of particulate stains, and / or iv) dispersion and / or emulsification of soils, and / or v) modification of treated surface to improve removal upon later re-soiling, and / or vi) whiteness improvement and / or most preferably in cleaning compositions forI) clay removal and / or ii) removal of oily / fatty stains, each of the before mentioned options I) to vi) preferably for use in a laundry detergent formulation and / or a manual dish wash detergent formulation and / or in a formulation suitable for (pre)-treatment of textiles and / or soap bars, more preferably in a liquid laundry detergent formulation and / or a liquid manual dish wash detergent formulation.
12. A laundry detergent, cleaning composition, fabric and home care product, cosmetic formulation, crude oil emulsion breaker, pigment dispersion for ink jet inks, formulation for electro plating, cementitious composition and / or dispersant for agrochemical formulations, comprising at least one propoxylated ethylenediamine according to any of claims 1 to 6, preferably laundry detergent, cleaning composition and / or fabric and home care product, comprising at least one propoxylated ethylenediamine according to any of claims 1 to 6.
13. The laundry detergent, cleaning composition, fabric or home care product according to claim 12 further comprising(a) an antimicrobial agent selected from the group consisting of 2-phenoxyethanol and 4,4'-dichoro 2- hydroxydiphenylether; preferably comprising 2-phenoxyethanol in an amount ranging from 2ppm to 5% by weight of the composition; more preferably comprising 0.1 to 2% of phenoxyethanol or preferably comprising 4,4'-dichoro 2-hydroxydiphenylether in a concentration from 0.001 to 3%, more preferably 0.002 to 1%, even more preferably 0.01 to 0.6%, each by weight of the composition, and / or(b) at least one enzyme selected from the list consisting of lipases, hydrolases, amylases, DNases, proteases, cellulases, hemicellulases, phospholipases, esterases, mannanases, xylanases, dispersins, oxidoreductases, cutinases, pectate lyases, pectinases, lactases and peroxidases, and combinations of at least two of the foregoing types, preferably selected from one or more lipases, hydrolases, amylases, proteases,cellulases, and combinations of at least two of the foregoing types, more preferably at least one enzyme being selected from proteases.
Citation Information
Patent Citations
Solid machine dishwashing detergent with phosphate and crystalline layered silicates
DE19819187A1
PROCESS FOR THE PRODUCTION OF ALKALINE AND ALKALINE EARTH SALTS OF ACYLOXIBENZENEFULFONIC ACIDS
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DE4443177A1
Detergent ingredients, and their use in cleaning compositions and washing processes
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