Cleansing compositions and methods for the same
The aqueous cleansing composition with a surfactant system of anionic, amphoteric, and nonionic surfactants addresses viscosity and foam generation issues, enhancing cleaning performance and consumer perception.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- COLGATE PALMOLIVE CO
- Filing Date
- 2025-12-02
- Publication Date
- 2026-06-11
AI Technical Summary
Existing cleansing products face challenges in achieving optimal viscosity, clarity, and foam generation, which affect consumer perception and performance.
An aqueous cleansing composition comprising a surfactant system with a combination of anionic, amphoteric, and nonionic surfactants, formulated to have a viscosity of 500 cP to 1300 cP, and a surfactant concentration of at least 27 wt%, enhancing foam generation and stability.
The composition exhibits superior efficacy in cleaning performance, foam generation, and lower contact angle on soiled surfaces, providing improved consumer perception and cleaning efficacy.
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Figure US2025057663_11062026_PF_FP_ABST
Abstract
Description
Attorney Docket No. 1015076-00-WO-01-HCCLEANSING COMPOSITIONS AND METHODS FOR THE SAMECROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of priority from U.S. Provisional Patent Application No. 63 / 727,286, filed 3 December 2024, the contents of which are hereby incorporated herein by reference in their entirety.BACKGROUND
[0002] For cleansing products or compositions, such as hand dishwashing liquids, stability (e.g., clarity and homogeneity) and viscosity are important factors contributing to consumers’ perception thereof. The desired viscosity expected by the consumer should not be too thick or too thin, and the product or composition thereof should be visually appealing with respect to clarity. Other factors considered by consumers for cleansing products or compositions thereof include cleansing efficacy or performance and foam generation. Cleansing performance may be improved by improving the efficacy of the cleansing composition for oil emulsification. Improved foam generation, while minimally related to improved cleansing performance, provides a visual cue that gives consumers the impression or perception of improved cleaning performance. As such, it is desirable for flash foam or foam generated upon agitation to be stable and in relative high volumes.
[0003] What is needed, then, are improved cleansing products or cleansing compositions thereof that provide improved cleansing performance and improved consumer perception.BRIEF SUMMARY
[0004] This summary is intended merely to introduce a simplified summary of some aspects of one or more implementations of the present disclosure. Further areas of applicability of the present disclosure will become apparent from the detailed description provided hereinafter. This summary is not an extensive overview, nor is it intended to identify key or critical elements of the present teachings, nor to delineate the scope of the disclosure. Rather, its purpose is merely to present one or more concepts in simplified form as a prelude to the detailed description below.
[0005] The foregoing and / or other aspects and utilities embodied in the present disclosure may be achieved by providing an aqueous cleansing composition including an aqueous base and a surfactant system. The surfactant system may include a plurality of surfactants dispersed in the aqueous base, and the plurality of surfactants may include one or more anionic surfactants, one orAttorney Docket No. 1015076-00-WO-01-HC more amphoteric surfactants, one or more nonionic surfactants, or a combination thereof. The aqueous cleansing composition may have a viscosity measured at about 25 °C of from about 500 cP to about 1300 cP.
[0006] In certain embodiments disclosed herein, there is provided an aqueous cleansing composition comprising an aqueous base and a surfactant system, wherein the surfactant system is present in the aqueous cleansing composition in an amount of at least about 30 wt%, based on a total weight of the aqueous cleansing composition.
[0007] In at least one implementation, a surfactant system comprises a plurality of surfactants dispersed in the aqueous base, the plurality of surfactants comprising one or more anionic surfactants, one or more amphoteric surfactants, one or more nonionic surfactants, or a combination thereof, wherein the surfactant system is present in the aqueous cleansing composition in an amount of at least about 27 wt %, such as more than about 27 wt%, or at least about 30 wt%, such as about 30 wt% to about 35 wt% or from about 31 wt% to about 33 wt%, based on a total weight of the aqueous cleansing composition.
[0008] In certain embodiments, the one or more anionic surfactants comprise an alkyl sulfonate, an alkyl ethoxy sulfate, or a salt thereof, or a combination thereof, optionally, the one or more anionic surfactants comprise an alkyl sulfonate and an alkyl ethoxy sulfate or a salt thereof.
[0009] In at least one implementation, the alkyl sulfonate may include a branched alkyl benzene sulfonate or a linear alkyl benzene sulfonate, optionally, a sodium linear alkyl benzene sulfonate, further optionally, sodium dodecyl benzene sulfonate (DDBS).
[0010] In at least one implementation, the alkyl ethoxy sulfate or a salt thereof may include a fatty acid ethoxylate sulfate, optionally, C12-C15 alkyl ethoxysulfate with 1 to 3 ethoxylate groups per molecule, such as 1 ethoxylate group per molecule, or a salt thereof, further optionally, the fatty acid ethoxylate sulfate may include sodium lauryl ether sulfate (SLES) or sodium pareth sulfate.
[0011] In at least one implementation, the one or more anionic surfactants may be present in an amount of from about 16 wt% to about 26 wt%, about 20 wt% to about 24 wt%, about 21 wt% to about 23 wt%, or about 22 wt%, based on the total weight of the aqueous cleansing composition.
[0012] In at least one implementation, the DDBS is present in an amount of from about 6 wt% to about 18 wt%, about 8 wt% to about 12 wt%, about 9 wt% to about 10 wt%, or about 9.5 wt%, based on the total weight of the aqueous cleansing composition.Attorney Docket No. 1015076-00-WO-01-HC
[0013] In at least one implementation, the SLES is present in an amount of from about 10 wt% to about 15 wt%, about 11 wt% to about 14 wt%, or about 12 wt% to about 13 wt%, based on the total weight of the aqueous cleansing composition. In at least one implementation, the aqueous cleansing composition disclosed herein comprises anionic surfactants that consist of DDBS and SLES.
[0014] In at least one implementation, the one or more amphoteric surfactants may include a betaine-based surfactant, an amine oxide surfactant, or a combination thereof. Optionally, the betaine-based surfactant may include one or more of imidazoline-based betaines, alkyl dimethyl aminoacetic acid betaines, fatty acid amide propyl betaines, sulfobetaines, or a combination thereof. Further optionally, the betaine-based surfactant may include lauramidopropyl betaine, or further optionally, the amine oxide surfactant may include lauramidopropylamine oxide (lauryl / myristyl amidopropyl amine oxide or “LMDO”); further optionally, the amphoteric surfactants may include cocamidopropyl betaine, lauramidopropyl betaine, or lauramidopropylamine oxide. In at least one implementation, the one or more amphoteric surfactant may include LMDO. In at least one implementation, the cleansing composition disclosed herein comprises an amphoteric surfactant that consists of LMDO. In at least one implementation, the one or more amphoteric surfactant may include betaine. In at least one implementation, the cleansing composition disclosed herein comprises an amphoteric surfactant that consists of betaine.
[0015] In at least one implementation, the one or more amphoteric surfactants may be present in an amount of from greater than 4 wt% to about 12 wt%, about 5 wt% to about 11 wt%, about 6 wt% to about 10 wt%, about 6 wt% to about 8 wt%, about 7.8 wt%, or about 6.8 wt%. based on the total weight of the aqueous cleansing composition.
[0016] In at least one implementation, the one or more nonionic surfactant comprises a condensation product of a Guerbet alcohol with from 2 to 18 moles, such as 2 to 15 moles, 5 to 12 moles, 8 to 10 moles, or 10 moles of ethylene oxide (EO) per mole of alcohol, such as a condensation product of a ClO-Guerbet alcohol with 7 moles of EO per mole of alcohol. Further optionally, the one or more nonionic surfactant comprises LUTENSOL® XL 79. In at least one implementation, the one or more nonionic surfactant comprises a condensation product of C9-C15 or C9-C11 alkanol and 2.5 to 10 moles of EO, such as a CIO alkanol and 2.5 moles of EO, preferably where the one or more nonionic surfactant comprises MARLIPAL® 10 / 8 or a C9-11Attorney Docket No. 1015076-00-WO-01-HCEO 8 such as NEODOL® 91-8. In one embodiment, the one or more nonionic surfactant comprises a condensation product of a ClO-Guerbet alcohol with 7 moles of EO per mole of alcohol (e.g., LUTENSOL® XL 79) and a CIO alkanol and more than 2.5 moles of EO (e.g., MARLIPAL® 10 / 8). In certain embodiments, a total amount of nonionic surfactants are present in the aqueous cleansing composition in an amount of from greater than 0 wt% to about 4 wt%, about 0.5 wt% to about 3.5 wt%, about 1 wt% to about 3 wt%, or about 3 wt%. based on the total weight of the aqueous cleansing composition.
[0017] In certain embodiments of the disclosure, the surfactant system comprises a combination of sodium lauryl ether sulfate (SLES), sodium dodecyl benzene sulfonate (DDBS), lauramidopropyl betaine or lauramidopropylamine oxide, a condensation product of a C10- Guerbet alcohol with 7 moles of EO per mole of alcohol, and a condensation product of a CIO alkanol and more than 2.5 moles of EO per mole of alcohol.
[0018] In at least one implementation, the aqueous cleansing composition may further include a plurality of viscosity modifying agents. The viscosity modifying agents may include ethanol, salts such as sodium chloride or magnesium chloride, at least one poloxamer, or a combination thereof. Optionally, the viscosity modifying agents may include a combination of ethanol and at least one poloxamer or other hydrotropes such as sodium xylene sulfonate, sodium cumene sulfonate, and others.
[0019] In at least one implementation, the ethanol may be present in an amount of from about 0.1 wt% to about 3 wt%, about 0.5 wt% to about 2.5 wt%, about 1 wt% to about 2 wt%, or about 1 wt%, based on the total weight of the aqueous cleansing composition.
[0020] In at least one implementation, the aqueous base may include water, and in certain embodiments, the water is present in the aqueous cleansing composition in an amount of less than about 68 wt%, such as between about 60 wt% to about 66 wt%, or about 63 wt% to about 65 wt%, based on the total weight of the aqueous cleansing composition.
[0021] In at least one implementation, the aqueous cleansing composition may further comprise lactic acid, sulfuric acid, or citric acid as a pH modifying agent. In at least one implementation, the lactic acid or citric acid may be present in an amount of from about 0.1 wt% to about 2.5%, about 0.5 wt% to about 2 wt%, about 0.2 wt% to about 0.3 wt%, or about 0.2 wt% based on the total weight of the aqueous cleansing composition. In at least one implementation, the aqueous cleansing composition is free of sulfuric acid.Attorney Docket No. 1015076-00-WO-01-HC
[0022] The foregoing and / or other aspects and utilities embodied in the present disclosure may be achieved by providing a method for preparing the aqueous cleansing compositions disclosed herein. The method may include contacting the aqueous base and the surfactant systems disclosed herein with one another.
[0023] Further areas of applicability of the present disclosure will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating some typical aspects of the disclosure, are intended for purposes of illustration only and are not intended to limit the scope of the disclosure.BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The features and advantages of the disclosure will be apparent from the following more detailed description of certain embodiments and as illustrated in the accompanying drawings in which:
[0025] Figure 1 is a graph showing contact angle over time for Compositions (l)-(4), (6), and (7), as described in Example 1.
[0026] Figure 2 is a graph showing the foam volume in mL for Compositions ((l)-(4), (6), and (7), without the addition of olive oil and with varying microliters of olive oil (200 pL to 2000 pL) added, as described in Example 1.
[0027] It should be understood that the various aspects are not limited to the compositions, arrangements, and instrumentality shown in the figures.DETAILED DESCRIPTION
[0028] The following description of various typical aspect(s) is merely exemplary in nature and is in no way intended to limit the disclosure, its application, or uses.
[0029] As used throughout this disclosure, ranges are used as shorthand for describing each and every value that is within the range. It should be appreciated and understood that the description in a range format is merely for convenience and brevity, and should not be construed as an inflexible limitation on the scope of any embodiments or implementations disclosed herein. Accordingly, the disclosed range should be construed to have specifically disclosed all the possible subranges as well as individual numerical values within that range. As such, any value within the range may be selected as the terminus of the range. For example, description of a range such asAttorney Docket No. 1015076-00-WO-01-HC from 1 to 5 should be considered to have specifically disclosed subranges such as from 1.5 to 3, from 1 to 4.5, from 2 to 5, from 3.1 to 5, etc., as well as individual numbers within that range, for example, 1, 2, 3, 3.2, 4, 5. etc. This applies regardless of the breadth of the range.
[0030] Unless otherwise specified, all percentages and amounts expressed herein and elsewhere in the specification should be understood to refer to percentages by weight. The amounts given are based on the active weight of the material.
[0031] Additionally, all numerical values are “about” or “approximately” the indicated value, and take into account experimental error and variations that would be expected by a person having ordinary skill in the art, in addition to the variability of the raw materials from lot to lot. It should be appreciated that all numerical values and ranges disclosed herein are approximate values and ranges, whether “about” is used in conjunction therewith. It should also be appreciated that the term “about,” as used herein, in conjunction with a numeral refers to a value that may be ± 0.01% (inclusive), ± 0.1% (inclusive), ± 0.5% (inclusive), ± 1% (inclusive) of that numeral, ± 2% (inclusive) of that numeral, ± 3% (inclusive) of that numeral, ± 5% (inclusive) of that numeral, ± 10% (inclusive) of that numeral, or ± 15% (inclusive) of that numeral. It should further be appreciated that when a numerical range is disclosed herein, any numerical value falling within the range is also specifically disclosed.
[0032] As used herein, “free” or “substantially free” of a material may refer to a composition, component, or phase where the material is present in an amount of less than 10.0 weight %, less than 5.0 weight %, less than 3.0 weight %, less than 1.0 weight %, less than 0.1 weight %, less than 0.05 weight %, less than 0.01 weight %, less than 0.005 weight %, or less than 0.0001 weight % based on a total weight of the composition, component, or phase. In certain embodiments, the phrase “free” or “substantially free” indicates that there is no detectable amount of the material in a composition.
[0033] All references cited herein are hereby incorporated by reference in their entireties. In the event of a conflict in a definition in the present disclosure and that of a cited reference, the present disclosure controls.
[0034] It has been surprisingly and unexpectedly discovered that a cleansing composition including a carrier and a surfactant system including a combination of one or more anionic surfactants, one or more amphoteric surfactants, and one or more nonionic surfactants, exhibited superior efficacy as compared to conventional cleansing compositions when the surfactant systemAttorney Docket No. 1015076-00-WO-01-HC was present in the cleansing composition in a total amount of greater than about 27 wt%, such as greater than about 28 wt%, greater than about 29 wt%, or greater than about 30 wt%, such as from about 28 wt% to about 35 wt%, from about 30 wt% to about 33 wt%. or from about 31 wt% to about 32 wt%. Particularly, it was surprisingly and unexpectedly discovered that a cleansing composition including the carrier and the surfactant system including a combination of SLES, DDBS, lauramidopropyl betaine and / or lauramidopropylamine oxide (LMDO), MARLIPAL® and LUTENSOL®, in a total amount of greater than about 27 wt%, such as greater than about 28 wt%, greater than about 29 wt%, or greater than about 30 wt%, such as from about 28 wt% to about 35 wt%, from about 30 wt% to about 33 wt%, or from about 31 wt% to about 32 wt%, exhibited enhanced efficacy and foam generation as compared to conventional cleansing compositions including the same or similar surfactants in a lower total amount.
[0035] It has also been surprisingly and unexpectedly discovered that a cleansing composition including a carrier and a surfactant system including a combination of one or more anionic surfactants, one or more amphoteric surfactants, and one or more nonionic surfactants as described herein, exhibited relatively lower contact angle on soiled surfaces as compared to conventional cleansing compositions. Particularly, it was surprisingly and unexpectedly discovered that a cleansing composition including the carrier and the surfactant system including a combination of SLES, DDBS, lauramidopropyl betaine and / or lauramidopropylamine oxide (LMDO), MARLIPAL® and LUTENSOL®, in a total amount of greater than about 27 wt%, such as greater than about 28 wt%, greater than about 29 wt%, or greater than about 30 wt%, such as from about 28 wt% to about 35 wt%, from about 30 wt% to about 33 wt%, or from about 31 wt% to about 32 wt%, exhibited relatively lower contact angle on soiled surfaces as compared to conventional cleansing compositions including the same or similar surfactants in varying weight ratios.
[0036] Compositions disclosed herein may be or include a cleansing product or a cleansing composition thereof. For example, the composition may be a cleansing product including the cleansing composition and / or one or more additional ingredients / components. In another example, the composition may be the cleansing composition of the cleansing product. As used herein, the expression “cleansing product” may refer to a final form that is sold to a consumer. The cleansing product or the cleansing composition thereof may be a liquid, a fluid, a gel, a spray or the like. Illustrative cleansing products and cleansing compositions thereof may be or include, but are not limited to, a home care product, a hand dishwashing product, such as a liquid or gel handAttorney Docket No. 1015076-00-WO-01-HC dishwashing product, a light-duty liquid (LDL) product for cleaning kitchen or other surfaces, a home care cleansing composition, a hand dishwashing cleansing composition, such as a liquid or gel hand dishwashing cleansing composition, a light-duty liquid (LDL) cleansing composition for cleaning kitchen or other surfaces, or the like.
[0037] As used herein, a “cleansing composition” may refer to any composition that may be used for cleaning a substrate or a surface thereof. A “surface” may refer to hard surfaces, including, but not limited to, kitchen surfaces, such as counter tops, stove tops, dishes, sinks, and cabinets, walls, appliances (e.g., kitchen appliances, bathroom appliances, etc. ), fixtures (e.g., sinks, toilets, bathtubs, tiles, doors, etc.), or any other hard surfaces commonly found in the household. The surface may be or include, but is not limited to, the surface of wood, ceramic, plastic, glass, floors, dishes, furniture, textiles or fabrics (e.g., clothes, carpets or rugs, cloths, bedding, leather, etc.), sponges, mops, or the like, or a combination thereof. The surface may also include polymeric surfaces, fibrous surfaces, surfaces of objects fabricated from natural or synthetic materials (e.g., protective gear, sports equipment, etc.). Accordingly, the present cleansing composition may form a portion or a basis of, be incorporated into, and / or be used as a hard surface cleaner, a spray cleaner, a floor cleaner, a microwave cleaner, a stovetop cleaner, an oven cleaner, or the like, or a combination thereof. As used herein, the term “dishes” refers to dishes as well as other tools and utensils involved in the preparation and / or consumption of food.
[0038] The cleansing compositions disclosed herein may be an aqueous cleansing composition. The aqueous compositions disclosed herein may include an aqueous base or carrier, a surfactant system including one or more surfactants, one or more viscosity modifying agents, one or more excipients, or a combination thereof. The aqueous cleansing composition may be formulated to be visibly clear and homogenous after exposure to aging or cooling conditions (e.g., about 5 °C). For example, the aqueous cleansing composition may include a plurality of surfactants and / or viscosity modifying agents in relative formulated amounts to provide a visibly clear and homogenous composition after exposure to aging or cooling conditions.
[0039] The aqueous cleansing composition may be formulated to provide a pourable viscosity in an undiluted and / or diluted form. For example, the aqueous cleansing composition may have a viscosity measured at about 25 °C of from about 500 cP to about 2,000 cP. For example, the aqueous cleansing composition may have a viscosity measured at about 25 °C of from about 500 cP, about 600 cP, about 700 cP, about 750 cP, about 800 cP, about 850 cP, or about 900 cP toAttorney Docket No. 1015076-00-WO-01-HC about 950 cP, about 1 ,000 cP, about 1 ,100 cP, about 1 ,200 cP, about 1 ,300 cP, about 1 ,600 cP, about 1,800 cP, or about 2,000 cP. In another example, the aqueous cleansing composition may have a viscosity measured at about 25 °C of from about 500 cP to about 2,000 cP, about 500 cP to about 1,200 cP, or about 500 cP to about 950 cP.
[0040] The surfactant system may be capable of or configured to facilitate the removal of soil, dirt, oil, debris, or the like, from surfaces. The surfactant system may include a plurality of surfactants, including one or more anionic surfactants, one or more amphoteric surfactants, one or more nonionic surfactants, or a combination thereof. The surfactant system may represent the amount or concentration of active ingredients (Al) in the cleansing composition. The surfactant system may be present in an amount of from at least about 27 wt%, such as greater than about 27 wt%, from at least about 30 wt%. about 30 wt% to about 35 wt%, about 30 wt% to about 34 wt%, about 30 wt% to about 33 wt%, about 30 wt% to about 32 wt%, about 30 wt% to 31 wt%; about 31 wt% to about 35 wt%, about 31 wt% to about 34 wt%, about 31 wt% to about 33 wt%, about 31 wt% to about 32 wt%; about 33 wt% to about 35 wt%. about 33 wt% to about 34 wt%, or about 34 wt% to about 35 wt%. In certain embodiments, the surfactant system may be present in an amount of about 30 wt%, about 31 wt%, about 32 wt%, about 33 wt%, about 34 wt%, or about 35 wt%. In certain embodiments, the surfactant system may be present in the composition in an amount of 28 wt%, 29 wt%, 30 wt%, 30.1 wt%, 30.2 wt%, 30.3 wt%, 30.4 wt%, 30.5 wt%, 30.6 wt%, 30.7 wt%, 30.8 wt%, 30.9 wt%, 31 wt%, 31.1 wt%, 31.2 wt%, 31.3 wt%, 31.4 wt%, 31.5 wt%, 31.6 wt%, 31.7 wt%, 31.8 wt%, 31.9 wt%, 32 wt%, 32.1 wt%, 32.2 wt%, 32.3 wt%, 32.4 wt%, 32.5 wt%, 32.6 wt%, 32.7 wt%, 32.8 wt%, 32.9 wt%, 33 wt%, 33.1 wt%, 33.2 wt%, 33.3 wt%, 33.4 wt%, 33.5 wt%, 33.6 wt%. 33.7 wt%. 33.8 wt%, 33.9 wt%, 34 wt%, 34.1 wt%, 34.2 wt%, 34.3 wt%, 34.4 wt%, 34.5 wt%, 34.6 wt%, 34.7 wt%, 34.8 wt%, 34.9 wt%, or 35 wt%, based on the total weight of the composition.
[0041] The surfactant system may also be capable of or configured to provide: a relatively lower cloud point, improved stability, increased flash foam, improved oil emulsification, improved contact angle on soiled surfaces, or a combination thereof. For example, each of the plurality of surfactants in the surfactant system may be varied or modified (e.g., increased or decreased) with respect to weight ratios and / or concentration to provide: a relatively lower cloud point, improved stability, increased flash foam, improved oil emulsification, improved contact angle on soiled surfaces, or a combination thereof.Attorney Docket No. 1015076-00-WO-01-HCAt least one anionic surfactant
[0042] The one or more one anionic surfactants may be or include, but are not limited to, an alkyl sulfonate, an alkyl ethoxy sulfate, or a salt thereof, or a combination thereof. The alkyl sulfonate may be or include a branched or linear alkyl benzene sulfonate, optionally, magnesium linear alkyl benzene sulfonate, sodium linear alkyl benzene sulfonate, or triethanolamine linear alkyl benzene sulfonate. In an exemplary implementation, the linear alkyl benzene sulfonate includes dodecyl benzene sulfonate, such as sodium dodecyl benzene sulfonate. The alkyl ethoxy sulfate may also be or include a fatty acid ethoxylate sulfate, optionally C12-C15 alkyl ethoxysulfate with 1-3 ethoxylate (EO) groups per molecule, or a salt thereof. In an exemplary implementation, the fatty acid ethoxylate sulfate may be or include ammonium laureth sulfate, sodium lauryl ether sulfate (SLES), also referred to as sodium laureth sulfate, or a combination thereof. The sodium lauryl ether sulfate may have an average of about 1 to about 10 moles of EO per mole, or about 1 to 3 moles of EO per mole, or about 2 to about 3 moles of EO per mole. Illustrative anionic surfactants may be or include, but are not limited to. sodium lauryl sulfate, sodium laureth sulfate, sodium cocoyl monoglyceride sulfonate, sodium lauryl sarcosinate, sodium lauryl isoethionate, sodium laureth carboxylate, sodium dodecyl benzenesulfonate (DDBS), or a combination thereof. In an exemplary implementation, the one or more anionic surfactants include at least sodium lauryl ether sulfate (SLES) and sodium dodecyl benzenesulfonate (DDBS).
[0043] The one or more anionic surfactants may be present in a total amount of from about 16 wt% to about 26 wt%, about 18 wt% to about 26 wt%, about 20 wt% to about 24 wt%, about 21 wt% to about 22 wt%, about 16 wt%, about 22 wt%, or about 23%, based on the total weight of the aqueous cleansing composition. In an exemplary implementation, the one or more anionic surfactants include at least of sodium lauryl ether sulfate (SLES) and sodium dodecyl benzenesulfonate (DDBS), and in certain embodiments, the one or more anionic surfactants comprise or consist of SLES and DDBS. The combination of SLES and DDBS may be present in an amount of from about 16 wt% to about 26 wt%, about 18 wt% to about 26 wt%, about 20 wt% to about 24 wt%, about 21 wt% to about 22 wt%, or about 22 wt%, based on the total weight of the aqueous cleansing composition.
[0044] The SLES may be present in the aqueous cleaning composition in an amount of from about 9 wt% to about 15 wt%, such as from about 9 wt% to about 14 wt%, about 9 wt% to about 13 wt%, about 9 wt% to about 12 wt%, about 9 wt% to about 11 wt%, about 9 wt% to about 10wt%; fromAttorney Docket No. 1015076-00-WO-01-HC about 10 wt% to about 15 wt%, about 10 wt% to about 14 wt%, about 10 wt% to about 13 wt%, about 10 wt% to about 12 wt%, about 10 wt% to about 11 wt%; from about 11 wt% to about 15 wt%, about 11 wt% to about 14 wt%, about 11 wt% to about 13 wt%, about 11 wt% to about 12 wt%, about 12 wt% to about 15 wt%, about 12 wt% to about 14 wt%, about 12 wt% to about 13 wt%, or about 12.1 wt%, about 12.2 wt%, about 12.3 wt%, about 12.4 wt%, about 12.5 wt%, about 12.6 wt%, about 12.7 wt%. about 12.8 wt%, or about 12.9 wt%, based on the total weight of the aqueous cleansing composition.
[0045] The DDBS may be present in the aqueous cleaning composition in an amount of from about5 wt% to about 15 wt%, about 5 wt% to about 14 wt%, about 5 wt% to about 13 wt%, about 5 wt% to about 12 wt%, about 5 wt% to about 11 wt%, about 5 wt% to about 10 wt%, about 5 wt% to about 9 wt%, about 5 wt% to about 8 wt%, about 5 wt% to about 7 wt%, about 5 wt% to about6 wt%; from about 6 wt% to about 15 wt%, about 6 wt% to about 14 wt%, about 6 wt% to about 13 wt%, about 6 wt% to about 12 wt%, about 6 wt% to about 11 wt%. about 6 wt% to about 10 wt%, about 6 wt% to about 9 wt%, about 6 wt% to about 8 wt%, about 6 wt% to about 7 wt%; about 7 wt% to about 15 wt%, about 7 wt% to about 14 wt%, about 7 wt% to about 13 wt%, about7 wt% to about 12 wt%, about 7 wt% to about 11 wt%, about 7 wt% to about 10 wt%, about 7 wt% to about 9 wt%, about 7 wt% to about 8 wt%; from about 8 wt% to about 15 wt%, about 8 wt% to about 14 wt%, about 8 wt% to about 13 wt%, about 8 wt% to about 12 wt%, about 8 wt% to about 11 wt%, about 8 wt% to about 10 wt%, about 8 wt% to about 9 wt%; from about 9 wt% to about 15 wt%, about 9 wt% to about 14 wt%, about 9 wt% to about 13 wt%, about 9 wt% to about 12 wt%, about 9 wt% to about 11 wt%, about 9 wt% to about 10 wt%; about 9.1 wt%, about 9.2 wt%, about 9.3 wt%, about 9.4 wt%. about 9.5 wt%, about 9.6 wt%, about 9.7 wt%, about 9.8 wt%, or about 9.9 wt%, based on the total weight of the aqueous cleansing composition.
[0046] The weight ratio of the DDBS to SLES (DDBS : SLES) may be from about 1:1 to about 1:3. such as from about 1: 1.2 to about 1:1.5. or about 1:1.3.At least one amphoteric surfactant
[0047] The one or more amphoteric surfactants may include at least one quaternary ammonium group or cation and at least one carboxylate. For example, the one or more amphoteric surfactants may be or include, but is not limited to, a betaine-based surfactant, an amine oxide surfactant, or a combination thereof. Illustrative amphoteric surfactants may be or include, but are not limited to, imidazoline-based betaines, alkyl dimethyl aminoacetic acid betaines, fatty acid amide propylAttorney Docket No. 1015076-00-WO-01-HC betaines, sulfobetaines, lauryl amidopropyl amino oxide (LMDO), or the like, or a combination thereof. In an exemplary implementation, the betaine-based surfactant may be or include, but is not limited to, one or more fatty acid amide propyl betaines, fatty acid amidopropyl betaines, or a combination thereof. Illustrative betaine-based surfactants may be or include, but are not limited to. cocodimethylcarboxymethyl betaine, cocamidopropyl betaine, lauryldimethylcarboxymethyl betaine, lauryldimethylcarboxy ethyl betaine, cetyldimethylcarboxymethyl betaine, lauryl-bis-(2- hydroxyethyl)carboxymethyl betaine, oleyldimethylgammacarboxypropyl betaine, lauryl-bis-(2- hydroxypropyl)-carboxyethyl betaine, lauramidopropyl betaine, or the like, or combinations thereof. In an exemplary implementation, the amphoteric surfactants include the betaine-based surfactant and / or the amino oxide surfactant, wherein the betaine based surfactant may be lauramidopropyl betaine, and the amino oxide surfactant may be lauryl amido propyl amine oxide. It should be appreciated that lauramidopropyl betaine and lauramidopropylamine oxide (LMDO) may be considered as equivalent materials that may be utilized interchangeably without materially affecting the compositions. As such, references made herein to lauramidopropyl betaine also encompass LMDO; similarly, references made to LMDO encompass lauramidopropyl betaine.
[0048] The one or more amphoteric surfactants may be present in the aqueous cleaning composition an amount of from about 4 wt% to about 10 wt%, such as from about 4 wt% to about 9 wt%, about 4 wt% to about 8 wt%, about 4 wt% to about 7 wt%, about 4 wt% to about 6 wt%, about 4 wt% to about 5 wt%, about 5 wt% to about 10 wt%, about 5 wt% to about 9 wt%, about 5 wt% to about 8 wt%, about 5 wt% to about 7 wt%, about 5 wt% to about 6 wt%, about 6 wt% to about 10 wt%, about 6 wt% to about 9 wt%, about 6 wt% to about 8 wt%, about 6 wt% to about 7 wt%, about 7 wt% to about 10 wt%, about 7 wt% to about 9 wt%, about 7 wt% to about 8 wt%, or about 6 wt%, 6.1 wt%, 6.2 wt%, 6.3 wt%, 6.4 wt%, 6.5 wt%, 6.6 wt%, 6.7 wt%, 6.8 wt%, 6.9 wt%, 7 wt%, 7.1 wt%, 7.2 wt%, 7.3 wt%, 7.4 wt%, 7.5 wt%, 7.6 wt%, 7.7 wt%, 7.8 wt%, or 7.9 wt%, based on the total weight of the aqueous cleansing composition. In an exemplary implementation, the one or more amphoteric surfactants include at least lauramidopropyl betaine and / or lauramidopropylamine oxide, and in certain embodiments, the amphoteric surfactant comprise or consists of LMDO.
[0049] The total weight ratio of the anionic surfactants to the amphoteric surfactants may be from about 1:1 to about 5:1, such as from about 1:1 to about 4:1, about 1:1 to about 3:1, about 1:1 to about 2:1, from about 2:1 to about 5:1, about 2:1 to about 4:1, about 2:1 to about 3:1; from aboutAttorney Docket No. 1015076-00-WO-01-HC3:1 to about 5: 1 , or from about 3: 1 to about 4: 1 , such as about 3:1 , about 2.5: 1 , about 2.6: 1 , about 2.7:1, about 2.8:1, about 2.9:1, about 3:1, about 3.1:1, about 3.2:1, about 3.3:1, about 3.4:1, or about 3.5:1. The weight ratio of the SLES to LMDO may be from about 1:1 to about 3:1, such as from about 1:1 to about 2:1, or about 1.5:1 to about 2:1, such as about 1.5:1, about 1.6:1, about 1.7:1, about 1.8:1, or about 1.9:1. The weight ratio of the DDBS to LMDO may be from about 1: 1 to about 3:1. such as about 1:1 to about 2:1, about 1.1:1. about 1.2: 1. about 1.3:1, about 1.4:1, about 1.5:1, about 1.6:1, about 1.7:1, about 1.8:1, or about 1.9:1.At least one nonionic surfactant
[0050] The one or more nonionic surfactants may be or include, but are not limited to, the condensation products of a higher alcohol (e.g., an alkanol containing about 8 to 18 carbon atoms in a straight or branched chain configuration) condensed with about 5 to 30 moles of ethylene oxide (EO), for example, lauryl or myristyl alcohol condensed with about 16 moles of EO, tridecanol condensed with about 6 to moles of EO, myristyl alcohol condensed with about 10 moles of EO per mole of myristyl alcohol, the condensation product of EO with a cut of coconut fatty alcohol containing a mixture of fatty alcohols with alkyl chains varying from 10 to about 14 carbon atoms in length and wherein the condensate contains either about 6 moles of EO per mole of total alcohol or about 9 moles of EO per mole of alcohol and tallow alcohol ethoxylates containing 6 EO to 11 EO per mole of alcohol.
[0051] The one or more nonionic surfactants may also be or include, but are not limited to, a higher aliphatic, C9-C15 primary alcohol or alkanol. For example, the nonionic surfactants may be a reaction product (e.g., a condensation product) of C9-C15 or C9-C11 alkanol and 2.5 to 10 moles of EO, C12-C13 alkanol and 6.5 moles of EO, C12-C15 alkanol and 12 moles of EO, C14-C15 alkanol with 13 moles EO, CIO alkanol with 7 moles of EO, or the like. In certain embodiments, the alkanol is a Guerbet alcohol. Guerbet alcohols are primary alcohols with beta branching and tend to have lower melting points than their unbranched counterparts.
[0052] For example, in certain embodiments, the one or more nonionic surfactant comprises the condensation product of a Guerbet alcohol with from 2 to 18 moles, such as 2 to 15 moles, 5 to 12 moles, 8 to 10 moles, or 10 moles of EO per mole of alcohol. In certain embodiments, the one or more nonionic surfactant comprises the condensation product of a ClO-Guerbet alcohol with 7 moles of EO per mole of alcohol. Suitable nonionic surfactants include, for example those sold under the tradename LUTENSOL® from BASF. In certain embodiments, the one or more nonionicAttorney Docket No. 1015076-00-WO-01-HC surfactant comprises LUTENSOL® XL 79, which is a condensation product of a C10-Guerbet alcohol with 7 moles of EO per mole of alcohol.
[0053] In certain embodiments, the aqueous cleansing composition disclosed herein consists of one nonionic surfactant. In certain embodiments, the aqueous cleansing composition consists of a condensation product of a ClO-Guerbet alcohol with 7 moles of EO per mole of alcohol, e.g., LUTENSOL® XL 79.
[0054] In certain other embodiments, the one or more nonionic surfactant may be or may include, but are not limited to. a higher aliphatic, C9-C15 primary alcohol or alkanol. For example, the nonionic surfactants may be a reaction product (e.g., a condensation product) of C9-C15 or C9- Cl l alkanol and 2.5 to 10 moles of EO, such as a CIO alkanol and 2.5 moles of EO, e.g., decan- l-ol, ethoxylated. For example, the nonionic surfactants may be or include MARLIPAL® (Sasol Germany GmbH, Germany) ALFONIC® 10-8 Ethoxylate (Sasol Germany GmbH, Germany). In certain embodiments, the one or more nonionic surfactant is a condensation product of a CIO alkanol and 2.5 moles of EO (e.g.. decan- l-ol ethoxylated), and in certain embodiments, the one or more nonionic surfactant is a condensation product of a CIO alkanol and 2.5 moles of EO (e.g., decan- l-ol ethoxylated) is present in the aqueous cleansing composition disclosed herein in an amount ranging from about 0 wt% to about 5 wt%, such as about 0.5 wt% to about 5 wt%, about 0.5 wt% to about 4.5 wt%, about 0.5 wt% to about 4 wt%, about 0.5 wt% to about 3.5 wt%, about 0.5 wt% to about 3 wt%, about 0.5 wt% to about 2.5 wt%, about 0.5 wt% to about 2 wt%, about 0.5 wt% to about 1.5 wt%, about 0.5 wt% to about 1 wt%; from about 1 wt% to about 5 wt%, about 1 wt% to about 4.5 wt%, about 1 wt% to about 4 wt%, about 1 wt% to about 3.5 wt%, about 1 wt% to about 3 wt%, about 1 wt% to about 2.5 wt%, about 1 wt% to about 2 wt%. about 1 wt% to about 1.5 wt%; from about 1.5 wt% to about 5 wt%, about 1.5 wt% to about 4.5 wt%, about 1.5 wt% to about 4 wt%, about 1.5 wt% to about 3.5 wt%, about 1.5 wt% to about 3 wt%, about 1.5 wt% to about 2.5 wt%, about 1.5 wt% to about 2 wt%; from about 2 wt% to about 5 wt%. about 2 wt% to about 4.5 wt%, about 2 wt% to about 4 wt%, about 2 wt% to about 3.5 wt%, about 2 wt% to about 3 wt%, about 2 wt% to about 2.5 wt%, about 2.5 wt% to about 5 wt%, about 2.5 wt% to about 4.5 wt%, about 2.5 wt% to about 4 wt%, about 2.5 wt% to about 3.5 wt%, about 2.5 wt% to about 3 wt%, or about 2.5 wt%, based on the total weight of the aqueous cleansing composition.
[0055] In certain embodiments the aqueous cleansing composition comprises or consists of two nonionic surfactants. In certain embodiments, the two nonionic surfactants in the aqueousAttorney Docket No. 1015076-00-WO-01-HC cleansing composition comprise or consist of a condensation product of a ClO-Guerbet alcohol with 7 moles of EO per mole of alcohol (e.g., LUTENSOL® XL 79) and a CIO alkanol and 2.5 moles of EO (e.g., MARLIPAL®).
[0056] In certain embodiments, the one or more nonionic surfactant may be or include, but are not limited to, NEODOL® 91-2.5, 91-5, 91-6, 91-8, or 91-8.4, NEODOL® 23-6.5, NEODOL® 25- 12, NEODOL® 45-13, NEODOL® 135. NEODOL® 67, or the like, or a combination thereof, all of which are commercially available from Shell Corp, of Houston, TX. NEODOL® is a tradename of Shell Corp, of Houston, TX for its alcohol ethoxylate surfactants. Other suitable nonionic surfactants are described in International Publication WO 2007 / 001593 to The Clorox Company, and U.S. Patent No. 6,342,473 to Kott et al., the disclosures of which are incorporated herein by reference. In certain embodiments, the one or more nonionic surfactants includes at least one NEODOL® surfactant or at least one higher aliphatic, primary alcohol. In a particular implementation, the one or more nonionic surfactants include NEODOL® 91-8 (CAS No. 68439- 46-3). a high purity C9-C11 alcohol ethoxylated with 8 moles of EO per mole of alcohol (C9-11 Alcohol Ethoxylate, 8 EO). In certain embodiments, the one or more nonionic surfactant may be substantially free of or free of NEODOL® 91-2.5, 91-5, 91-6, 91-8, or 91-8.4, NEODOL® 23-6.5, NEODOL® 25-12, NEODOL® 45-13, NEODOL® 135, NEODOL® 67, or the like, or a combination thereof.
[0057] The total amount of nonionic surfactants in the aqueous cleansing composition may range from greater than 0 wt% to about 6 wt%, about 0.5 wt% to about 5 wt%, about 1 wt% to about 4 wt%, about 2 wt% to about 3.5 wt%, about 2.5 wt% to about 3.5%, about 2 wt%, about 2.1 wt%, about 2.2 wt%, about 2.3 wt%, about 2.4 wt%, about 2.5 wt%, about 2.6 wt%, about 2.7 wt%, about 2.8 wt%, about 2.9 wt%, about 3 wt%, about 3.1 wt%, about 3.2 wt%, about 3.3 wt%, about 3.4 wt%, or about 3.5 wt%, based on the total weight of the aqueous cleansing composition.
[0058] In certain embodiments of the aqueous cleansing composition disclosed herein, the total weight ratio of the anionic surfactants to the nonionic surfactants may be from about 4: 1 to about 10:1, about 5:1 to about 10:1, about 6:1 to about 10:1, about 7:1 to about 10:1, about 5:1 to about 9:1, about 6:1 to about 8:1, about 7:1, about 7.1:1, about 7.2:1, about 7.3:1, about 7.4:1, about 7.5:1, about 7.6:1, about 7.7:1, about 7.8:1, about 7.9:1, or about 8:1.
[0059] The weight ratio of SLES to the one or more nonionic surfactants may be from about 2:1 to about 5:1, about 2.5:1 to about 4.5:1, about 3:1 to about 4:1, about 4:1 to about 5:1, about 4:1Attorney Docket No. 1015076-00-WO-01-HC to about 4.5: 1 , about 4: 1 , about 4.1 : 1 , about 4.2:1 , about 4.3: 1 , about 4.4:1 , or about 4.5:1. The weight ratio of the DDBS to the one or more nonionic surfactants may be from about 1:1 to 5:1, about 2:1 to about 4:1, about 2.5:1 to about 3.5:1. or about 3:1, about 3.1:1, about 3.2:1, about 3.3:1, about 3.4:1, or about 3.5:1. The weight ratio of LMDO to the one or more nonionic surfactants may be from about 1:1 to about 5:1, about 2:1 to about 4:1, about 2:1 to about 3:1, about 2.1:1, about 2.2:1, about 2.3:1, about 2.4:1, about 2.5: 1. about 2.6:1. about 2.7:1, about 2.8:1, about 2.9:1, or about 3:1.
[0060] In at least one implementation, the surfactant system includes one or more of SLES, DDBS, LMDO, LUTENSOL® XL 79, and MARLIPAL®, or a combination thereof. For example, the surfactant system may comprise a combination of SLES, DDBS, LMDO, LUTENSOL® XL 79, and MARLIPAL®. In certain embodiments, the surfactant system may consist of a combination of SLES, DDBS, LMDO, LUTENSOL® XL 79, and MARLIPAL®.Aqueous Base
[0061] The aqueous base of the cleansing composition disclosed herein comprises water. Water of the aqueous cleansing composition or the carrier thereof may be deionized water, demineralized water, and / or softened water. Water may make up the balance of the cleansing composition. For example, the amount of water in the aqueous cleansing composition may be from about 10 wt% to 90 wt%, about 40 wt% to about 85 wt%, or about 60 wt% to about 80 wt%. In another example, the amount of water in the cleansing composition may be at least 60 wt%. at least 65 wt%, at least 61 wt%, at least 62 wt%, at least 63 wt%, at least 64 wt%, or at least 65 wt%. In certain embodiments, the amount of water in the aqueous cleansing composition may be less than about 70 wt%, less than about 69 wt%, less than about 68 wt%, less than about 67 wt%, less than about 66 wt%, less than about 65 wt%, or less than about 64 wt%. In certain embodiments, the amount of water in the aqueous cleansing composition may range from about 55 wt% to about 70 wt%, such as from about 58 wt% to about 69 wt%, about 60 wt% to about 68 wt%, about 61 wt% to about 67 wt%, about 62 wt% to about 66 wt%, about 63 wt% to about 65 wt%, about 64 wt% to about 65 wt%, about 63.5 wt%, about 63.6 wt%, about 63.7 wt%, about 63.8 wt%, about 63.9 wt%, about 64 wt%, about 64.1 wt%, about 64.2 wt%, about 64.3 wt%, about 64.4 wt%, about 64.5 wt%, about 64.6 wt%, about 64.7 wt%, about 64.8 wt%, about 64.9 wt%, or about 65 wt%.
[0062] The amount of water in the cleansing composition may include free water added and water introduced with other components or materials of the cleansing composition. For example, theAttorney Docket No. 1015076-00-WO-01-HC amount of the water in the cleansing composition may include free water and water associated with the surfactants or any other component of the cleansing composition.
[0063] Due to the relatively high percentage of active ingredients incorporated into the aqueous cleansing compositions disclosed herein (e.g., more than about 27 wt% of a surfactant system), there is less water available to solubilize all of the ingredients in the aqueous cleansing composition. Although the addition of extra solvents or hydrotropes may serve to enhance solubility, their addition increases the overall cost of the composition. Additionally, the addition of certain solvents may decrease foam stability and / or the viscosity of the aqueous cleansing compositions to unacceptable levels. According, it may be beneficial to reduce the amount of added solvent, e.g., ethanol.
[0064] The aqueous base or carrier may be capable of or configured to store, entrain, or otherwise contain the surfactant system. The carrier may be or include, but is not limited to, any one or more of solvents, fragrances, enzymes, polymers, water, emulsifying agents, thickeners, colorants, natural actives or extracts, antimicrobial agents, pH modifying agents (e.g.. acids, bases, and / or buffers), dyes, preservatives, chelating agents, viscosity modifying agents, salts, or the like, or any mixture or combination thereof, in addition to any one or more of the other carrier components disclosed herein.
[0065] The solvents may include any water soluble solvents, such as those that may be capable of or configured to act as a hydrotrope. Water soluble solvents include, but are not limited to, C2- 4 mono, dihydroxy, or polyhydroxy alkanols and / or an ether or diether, such as ethanol, isopropanol, diethylene glycol monobutyl ether, dipropylene glycol methyl ether, diproyleneglycol monobutyl ether, propylene glycol n-butyl ether, propylene glycol, hexylene glycol, propanediol, and alkali metal cumene, alkali metal toluene, or alkali metal xylene sulfonates, such as sodium cumene sulfonate and sodium xylene sulfonate (SXS). In an exemplary implementation, the solvents may include ethanol and diethylene glycol monobutyl ether, both of which are miscible with water. Urea can be optionally used at a concentration of 0.1% to 7 weight %. Solvents such as ethanol, SXS, and propylene glycol may act to lower the viscosity of the composition.
[0066] In certain embodiments, the aqueous cleansing composition comprises ethanol as a solvent. Ethanol may be present in the aqueous cleansing compositions disclosed herein in an amount ranging from 0 wt% to about 5 wt%, such as about 0.1 wt% to about 3 wt%. about 0.5 wt% to about 2 wt%, about 1 wt% to about 2 wt%, about 1 wt% to about 1.5 wt%, about 1 wt%, about 1.1Attorney Docket No. 1015076-00-WO-01-HC wt%, about 1 .2 wt%, about 1 .3 wt%, about 1.4 wt%, or about 1 .5 wt%, based on the total weight of the aqueous cleansing composition.
[0067] One or more viscosity modifying agents may be added to the aqueous cleansing compositions disclosed herein. The viscosity modifying agents may be capable of or configured to modify (e.g., increase or decrease) a viscosity of the aqueous cleansing composition. In at least one implementation, the one or more viscosity modifying agent may comprise a polymer, such as a poloxamer. The poloxamer may be a liquid or a paste. The poloxamer may be or include a block copolymer. For example, the poloxamer may be or include a polyethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) block copolymer (PEG-PPG-PEG), such as, polyethylene glycol)- block-poly(propylene glycol)-block-poly(ethylene glycol). The poloxamer may have an average molecular weight of less than or equal to about 12,000 Dalton (Da), less than or equal to about 11,000 Da, less than or equal to about 10,000 Da, less than or equal to about 9,000 Da, less than or equal to about 8,000 Da, less than or equal to about 7,000 Da, or less than or equal to about 6,000 Da. Illustrative poloxamers may be or include, but are not limited to, one or more of PLURONIC® L35, PLURONIC® L43, PLURONIC® L64, PLURONIC® L10, PLURONIC® L44 (CAS No. 9003-11-6), PLURONIC® L62, PLURONIC® 10R5, PLURONIC® 17R4, PLURONIC® L25R4, PLURONIC® P84, PLURONIC® P65, PLURONIC® Pl 04, and PLURONIC® Pl 05, or the like, or any mixture or combination thereof, each of which or commercially available from BASF Corp, of Florham Park, NJ. In a preferred implementation, the polymer includes poloxamer 124 or PLURONIC® L44 (CAS No. 9003-11-6).
[0068] In at least one implementation, one or more of the solvents may act as a viscosity modifying agent. For example, ethanol may be included in the aqueous cleansing composition as a solvent and a viscosity modifying agent. In an exemplary implementation, the viscosity modifying agents include a combination of ethanol and one or more poloxamers, and in certain embodiments, the viscosity modifying agents include a combination of ethanol and a poloxamer.
[0069] In at least one implementation, each of the viscosity modifying agents may be present in an amount effective to provide a viscosity of from about 500 cP to about 1300 cP measured at about 25 °C. Each of the viscosity modifying agents may also be present in an amount effective to provide a cloud point less than 5 °C, less than 4 °C, less than 3 °C, less than 2 °C, less than 1 °C, or less than 0 °C. Each of the viscosity modifying may also be present in an amount effective to improve stability of the cleansing composition, reduce turbidity of the cleansing composition,Attorney Docket No. 1015076-00-WO-01-HC maintain clarity of the cleansing composition, recover clarity of the cleansing composition after exposure to cooling conditions, or a combination thereof. In an exemplary implementation, the viscosity modifying include a combination of ethanol and one or more poloxamers. The amount and / or weight ratio of the ethanol and the poloxamer may be modified to modify the viscosity of the cleansing composition, improve stability of the cleansing composition, reduce turbidity of the cleansing composition, maintain clarity of the cleansing composition, recover clarity of the cleansing composition after exposure to cooling conditions, or a combination thereof. The poloxamer may be present in an amount of from about 0.01 wt% to about 1 wt%, about 0.15 wt% to about 0.75 wt%, about 0.3 wt% to about 0.6 wt%, about 0.25 wt% to about 0.75 wt%, or about 0.5 wt%, based on the total weight of the cleansing composition. The weight ratio of ethanol to the poloxamer in the viscosity modifying agents may be from about 1:1 to about 3:1, about 1.5:1 to about 2.5:1, about 2:1 to about 2.5:1, about 2:1, about 2.1:1, about 2.2:1, about 2.3:1, about 2.4:1, or about 2.5:1.
[0070] It should be appreciated by one having ordinary skill in the art that the aqueous cleansing compositions disclosed herein may include other additional ingredients / components. For example, the cleansing composition may include any one or more additional ingredients to provided added effects or to make the product more attractive to a consumer. Illustrative additional ingredients may be or include, but are not limited to, perfumes, fragrances, abrasive agents, disinfectants, radical scavengers, bleaches, acids, chelating agents, antibacterial agents / preservatives, pH modifying agents, optical brighteners, or a combination thereof.
[0071] In at least one implementation, the aqueous cleaning composition may include one or more acids, one or more bases, and / or one or more buffers or buffering agents configured to adjust or control the pH of the cleansing product and / or cleansing composition. The one or more acids, one or more bases, and / or one or more buffers may, separately and independently, be present in an amount of from greater than 0 wt% to less than or equal to about 10 wt%, less than or equal to about 8 wt%, less than or equal to about 6 wt%, less than or equal to about 4 wt%, less than or equal to about 2 wt%, less than or equal to about 1 wt%, less than or equal to about 0.6 wt %, less than or equal to about 0.5 weight %, or less than or equal to about 0.4 wt %, based on a total weight of the cleaning composition, such as in an amount of from about 0.1 wt% to about 0.5 wt%, about 0.2 wt% to about 0.3 wt%, or about 0.25 wt%.Attorney Docket No. 1015076-00-WO-01-HC
[0072] Illustrative bases may include, but are not limited to, ammonia; mono-, di-, and tri-alkyl amines; mono-, di-, and tri-alkanolamines; alkali metal and alkaline earth metal hydroxides; sodium hydroxide, potassium hydroxide, lithium hydroxide, monoethanolamine, triethylamine, isopropanolamine, diethanolamine, triethanolamine, or the like, or combinations thereof. Illustrative acids may include, but are not limited to, mineral acids, such as hydrochloric acid, nitric acid, phosphoric acid, and sulfuric acid, polycarboxylic and / or organic acids, such as citric acid, acetic acid, lactic acid, glycolic acid, formic acid, butyric acid, propionic acid, valeric acid, malic acid, oxalic acid, carbonic acid, taurine, or the like, or combinations thereof. In certain embodiments, the aqueous cleansing composition is free of sulfuric acid. In certain embodiments, the aqueous cleansing composition comprises lactic acid as a pH modifying agent, such as about less than or equal to about 2 wt%, less than or equal to about 1 wt%, less than or equal to about 0.6 wt %, less than or equal to about 0.5 weight %, or less than or equal to about 0.4 wt % lactic acid, based on a total weight of the cleaning composition, such as in an amount of from about 0.1 wt% to about 0.5 wt%, about 0.2 wt% to about 0.3 wt%, or about 0.25 wt% lactic acid. Lactic acid, having a greater solubility than other acids, e.g., sulfuric acid, may be used in the aqueous cleansing compositions disclosed herein, as it may aid in the prevention of precipitation products resulting from salt formation, e.g., precipitation of sulfates from the cleansing product and / or cleansing composition as a result of sulfuric acid addition.
[0073] The preservatives may be present in an amount of from greater than 0 wt% to 3 wt% or about 0.01 wt% to about 2.5 wt%. Illustrative preservatives may be or include, but are not limited to, benzalkonium chloride; benzethonium chloride, 5-bromo-5-nitro-l,3dioxane; 2-bromo-2- nitropropane-l,3-diol; alkyl trimethyl ammonium bromide; N-(hydroxymethyl)-N-(l,3-dihydroxy methyl-2,5-dioxo-4-imidaxolidinyl-N'-(hydroxy methyl)urea; l-3-dimethyol-5,5-dimethyl hydantoin; formaldehyde; iodopropynl butyl carbamate, butyl paraben; ethyl paraben; methyl paraben; propyl paraben, mixture of methyl isothiazolinone / methyl-chloroisothiazoline in a 1:3 wt. ratio; mixture of phenoxythanol / butyl paraben / methyl paraben / propylparaben; 2- phenoxyethanol; tris-hydroxyethyl-hexahydrotriaz-ine; methylisothiazolinone; 5-chloro-2- methyl-4-isothiazolin-3-one; l,2-dibromo-2,4-dicyanobutane; l-(3-chloroalkyl)-3,5,7-triaza- azoniaadam-antane chloride; sodium benzoate, benzylisothiazolinone (e.g., 1,2-benzoisothiazolin- 3-one), organic acids, such as lactic acid, or a combination thereof.Attorney Docket No. 1015076-00-WO-01-HC
[0074] The chelating agents may be or include, but are not limited to, glutamic acid, N,N-diacetic acid, tetra sodium salt, e.g., Dissolvine® GL-47-S (CAS Number 51981-21-6), diethylenetriamine pentaacetate (DTPA), ethylenediamine tetraacetic acid (EDTA), etidronic acid, iminodisuccinate, or the like, or a combination thereof.
[0075] The present disclosure may provide methods for preparing aqueous cleansing compositions disclosed herein. The method may include combining, mixing, or otherwise contacting the aqueous base or carrier, the surfactant system, the one or more viscosity modifying agents, one or more excipients, or a combination thereof disclosed herein, with one another.
[0076] The present disclosure may also provide methods for improving a cloud point of an aqueous cleansing composition, improving a stability of an aqueous cleansing composition, improving flash foam of an aqueous cleansing composition, improving cleaning ability of an aqueous cleansing composition, such, for example, by decreasing the contact angle of the cleansing composition, improving oil emulsification of an aqueous cleansing composition, or a combination thereof. The method may include combining, mixing, or otherwise contacting the aqueous base or carrier, the surfactant system, the one or more viscosity modifying agents, one or more excipients, or a combination thereof disclosed herein, with one another.
[0077] The present disclosure may also provide a method for preparing a cleansing composition having a viscosity of from about 500 cP to about 1300 cP while maintaining a clear solution before and after cooling. The method may include combining a plurality of viscosity modifying agents including ethanol and a poloxamer with one another.EXAMPLES
[0078] The example and other implementations described herein are exemplary and not intended to be limiting in describing the full scope of compositions and methods of this disclosure. Equivalent changes, modifications and variations of specific implementations, materials, compositions and methods may be made within the scope of the present disclosure, with substantially similar results.Example 1
[0079] Seven aqueous cleansing compositions (l)-(7) having the surfactant systems according to Table 1A were prepared as shown below in Table 1A. The formulations of Test Composition (1),Attorney Docket No. 1015076-00-WO-01-HCTest Composition (2), Comparative Composition (6), and Comparative Composition (7) are set forth in Table IB, wherein the active ingredient surfactant system is indicated in bold font.
[0080] Table 1A - Cleansing Compositions (l)-(7)
[0081] Table IB - Formulations of Compositions (1), (2), (6), and (7)Attorney Docket No. 1015076-00-WO-01-HC
[0082] Each of compositions (l)-(7) was evaluated for contact angle measurement. Measurement of the contact angle of a drop of the composition was performed on a flat surface using the Drop Shape Analyzer DSA25 (Kriiss), wherein beef tallow colored with Sudan Red is soiled on a melamine tile. The lower and faster the contact angle is reduced, the better the wetting of a soiled surface, which can also be an indicator of better cleaning performance of the soiled surface.
[0083] Measurements were carried out at room temperature, and samples were diluted to 0.01% in deionized water. Samples were tested in triplicate for 100 seconds. As shown in FIG. 1, the results demonstrate that Compositions (1) and (2), which contained a total active ingredient level of 32.8% and 31.8%, respectively, has superior contact angle performance as compared to Compositions (3). (6), and (7), which a total active ingredient level of 26%. 34%, and 27.3%, respectively.
[0084] Additionally, flash foam, max foam, and foam stability against grease were evaluated with foam shaker equipment according to the protocol set forth in Blagojevic, S.N. et al., Performance and Efficiency of Anionic Dishwashing Liquids with Amphoteric and Nonionic Surfactants, J Surfact Deterg 19, 363-372 (2016). Flash foam was evaluated by preparing 0.1% dilutions of the compositions, pouring the diluted compositions into graduated glass cylinders, and, with the foam shaker equipment, agitating up and down for 20 cycles of shaking with no soil. Then, 200 microliters of olive oil (a source of grease) was added, and 20 cycles of shaking were repeated. This was repeated multiple times up with up to 2000 microliters of olive oil. The volume of foam was captured, and the mean and standard deviation of 4 replicas was calculated. The test demonstrates the stability of the foam against grease, wherein a higher foam is indicative of betterAttorney Docket No. 1015076-00-WO-01-HC performance against grease. As shown in FIG. 2, the results demonstrate that Test Compositions (1) and (2) demonstrated superior foam efficacy as compared to Compositions (3), (4), (6), and (7).
[0085] Next, white dish plates were each soiled with 0.1 - 0.13 grams / plate of a composition comprising l / 3rdbutter, l / 3rdolive oil, and l / 3rdbeef tallow. The composition was allowed to rest on the plate for 30 minutes, and then 0.5% of Composition (1), Composition (2), or Composition (4) was contacted with the composition on the plate and the size of the soil spot was observed after 30 seconds, 60 seconds, and 90 seconds. The results indicated that the plates contacted with Compositions (1) and (2) presented smaller soil spots than the plate contacted with Composition (4) and removed the grease faster than Composition (4). Accordingly, Compositions (1) and (2) were deemed to have better cleaning efficacy than Composition (4).
[0086] The present disclosure has been described with reference to exemplary implementations. Although a limited number of implementations have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these implementations without departing from the principles and spirit of the preceding detailed description. It is intended that the present disclosure be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims
Attorney Docket No. 1015076-00-WO-01-HCCLAIMSWhat is claimed is:
1. An aqueous cleansing composition, comprising: an aqueous base; and a surfactant system comprising a plurality of surfactants dispersed in the aqueous base, the plurality of surfactants comprising one or more anionic surfactants, one or more amphoteric surfactants, one or more nonionic surfactants, or a combination thereof, wherein the surfactant system is present in the aqueous cleansing composition in an amount of greater than about 27 wt%, based on a total weight of the aqueous cleansing composition.
2. The aqueous cleansing composition of claim 1, wherein the surfactant system is present in an amount of from about 30 wt% to about 35 wt%, such as from about 31 wt% to about 33 wt%, based on the total weight of the aqueous cleansing composition.
3. The aqueous cleansing composition of claim 1 or 2, wherein the surfactant system comprises a combination of the one or more anionic surfactants, the one or more amphoteric surfactants, and the one or more nonionic surfactants.
4. The aqueous cleansing composition of any one of the foregoing claims, wherein the one or more anionic surfactants comprise an alkyl sulfonate, an alkyl ethoxy sulfate, or a salt thereof, or a combination thereof, optionally, the one or more anionic surfactants comprise an alkyl sulfonate and an alkyl ethoxy sulfate or a salt thereof.
5. The aqueous cleansing composition of claim 4, wherein the alkyl sulfonate comprises a linear alkyl benzene sulfonate, optionally, a sodium linear alkyl benzene sulfonate, further optionally, sodium dodecyl benzene sulfonate (DDBS).
6. The aqueous cleansing composition of claim 4 or 5, wherein the alkyl ethoxy sulfate or a salt thereof comprises a fatty acid ethoxylate sulfate, optionally, C12-C15 alkyl ethoxysulfate withAttorney Docket No. 1015076-00-WO-01-HC1 ethoxylate groups per molecule, or a salt thereof, further optionally, the fatty acid ethoxylate sulfate comprises sodium lauryl ether sulfate (SLES) or sodium pareth sulfate.
7. The aqueous cleansing composition of any one of the foregoing claims, wherein the one or more anionic surfactants are present in an amount of from about 16 wt% to about 26 wt%, about 20 wt% to about 24 wt%, about 21 wt% to about 23 wt%, or about 22 wt%. based on the total weight of the aqueous cleansing composition.
8. The aqueous cleansing composition of any one of claims 5-7, wherein the DDBS is present in an amount of from about 6 wt% to about 18 wt%, about 8 wt% to about 12 wt%, about 9 wt% to about 10 wt%, or about 9.5 wt%, based on the total weight of the aqueous cleansing composition.
9. The aqueous cleansing composition of any one of claims 6-8, wherein the SLES is present in an amount of from about 10 wt% to about 15 wt%. about 11 wt% to about 14 wt%, or about 12 wt% to about 13 wt%, based on the total weight of the aqueous cleansing composition.
10. The aqueous cleansing composition of any one of the foregoing claims, wherein the one or more amphoteric surfactants comprise a betaine-based surfactant, an amine oxide surfactant, or a combination thereof, optionally, the betaine-based surfactant comprises one or more of imidazoline-based betaines, alkyl dimethyl aminoacetic acid betaines, fatty acid amide propyl betaines, sulfobetaines, or a combination thereof, further optionally, the betaine-based surfactant comprises lauramidopropyl betaine, further optionally, the amine oxide surfactant comprises lauramidopropylamine oxide (LMDO), further optionally, the amphoteric surfactants comprise either lauramidopropyl betaine or lauramidopropylamine oxide.
11. The aqueous cleansing composition of any one of the foregoing claims, wherein the one or more amphoteric surfactants are present in an amount of from greater than 4 wt% to about 12 wt%, about 5 wt% to about 11 wt%, about 6 wt% to about 10 wt%, about 6 wt% to about 8 wt%, about 7.8 wt%, or about 6.8 wt%, based on the total weight of the aqueous cleansing composition.Attorney Docket No. 1015076-00-WO-01-HC12. The aqueous cleansing composition of any one of the foregoing claims, wherein the one or more nonionic surfactant comprises a condensation product of a Guerbet alcohol with from 2 to 18 moles, such as 2 to 15 moles, 5 to 12 moles, 8 to 10 moles, or 10 moles of EO per mole of alcohol, such as a condensation product of a ClO-Guerbet alcohol with 7 moles of EO per mole of alcohol, further optionally, the one or more nonionic surfactant comprises LUTENSOL® XL 79.
13. The aqueous cleansing composition of any one of the foregoing claims, wherein the one or more nonionic surfactant comprises a condensation product of C9-C15 or C9-C11 alkanol and 2.5 to 10 moles of ethylene oxide, such as a CIO alkanol and more than 2.5 moles of ethylene oxide, preferably where the one or more nonionic surfactant comprises MARLIPAL® 10 / 8.
14. The aqueous cleansing composition of any one of the foregoing claims, wherein a total amount of nonionic surfactants are present in an amount of from greater than 0 wt% to about 4 wt%, about 0.5 wt% to about 3.5 wt%. about 1 wt% to about 3 wt%. or about 3 wt%, based on the total weight of the aqueous cleansing composition.
15. The aqueous cleansing composition of any of the foregoing claims, wherein the surfactant system comprises a combination of sodium lauryl ether sulfate (SLES), sodium dodecyl benzene sulfonate (DDBS), lauramidopropyl betaine or lauramidopropylamine oxide, a condensation product of a ClO-Guerbet alcohol with 7 moles of EO per mole of alcohol, and a condensation product of a CIO alkanol and more than 2.5 moles of ethylene oxide.
16. The aqueous cleansing composition of any of the foregoing claims, further comprising a plurality of viscosity modifying agents, the viscosity modifying agents comprising ethanol, a salt such as sodium chloride or magnesium chloride, a poloxamer, or a combination thereof, optionally, the viscosity modifying agents comprise a combination of ethanol and poloxamer.
17. The aqueous cleansing composition of claim 16, wherein the ethanol is present in an amount of from about 0.1 wt% to about 3 wt%, about 0.5 wt% to about 2.5 wt%, about 1 wt% to about 2 wt%. or about 1 wt%. based on the total weight of the aqueous cleansing composition.Attorney Docket No. 1015076-00-WO-01-HC18. The aqueous cleansing composition of any of the foregoing claims, wherein the water is present in the aqueous cleansing composition in an amount of less than about 68 wt%, such as between about 60 wt% to about 66 wt%, or about 63 wt% to about 65 wt%, based on the total weight of the aqueous cleansing composition.
19. The aqueous cleansing composition of any one of the foregoing claims, further comprising lactic acid as a pH modifier, optionally wherein the lactic acid is present in an amount of from about 0.1 wt% to about 2.5%, about 0.5 wt% to about 2 wt%, about 0.2 wt% to about 0.3 wt%, or about 0.2 wt% based on the total weight of the aqueous cleansing composition.
20. A method for preparing the aqueous cleansing composition of any one of the foregoing claims, the method comprising contacting the aqueous base and the surfactant system with one another.
Citation Information
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