Washing composition with reduced palm kernel dependence

Abstract

The present invention relates to a substantially sulfate-free washing composition comprising a glutamate salt, an aspartate salt or both, and optionally an additional anionic surfactant selected from the group consisting of isethionates, taurine salts and / or glycinates. The total surfactant used in the wash composition is 9% by weight, and the wash composition is mild but surprisingly exhibits good foaming properties while formulated with reduced palm kernel oil derived surfactants.

Description

Field of the Invention

[0001] The present invention relates to a cleaning composition having consumer desirable properties, wherein the composition may be isotropic or lamellar. More specifically, the cleaning composition of the present invention is substantially free of sulfate, comprises glutamate, aspartate or both, and optionally, at least one additional anionic surfactant selected from isethionate, taurate and / or glycinate. The total anionic surfactant used in the cleaning composition is from 1 to 9 wt%, whereby the cleaning composition is mild, stable, foams well, and produces a soft and smooth feel after use. Surprisingly, the cleaning composition produces such consumer desirable properties even when formulated with reduced levels of palm kernel oil derived surfactants. Background of the Invention

[0003] Consumers often seek low sulfate or even sulfate-free detergent compositions because, in addition to being gentler on the environment, such compositions are also gentler on the surfaces being cleaned (e.g., textiles, skin, and hair). Unfortunately, when mild detergent compositions are combined with water and shear, they often have difficulty providing the characteristics desired by consumers, such as desired foaming. Consumers like detergent compositions that produce desired foam because when products foam well, they typically wash longer and more. During cold and flu seasons, especially during epidemics and pandemics, longer wash times are encouraged to better disinfect the surfaces that are targeted for cleaning. In addition, ideal foaming lifts dirt and microorganisms, thereby producing a cleaner surface that is easier to clean with less water.

[0004] In addition to having low or even no sulfate, it is also desirable to reduce the amount of surfactant having a hydrophobic portion derived from palm kernel oil. 12 ) and myristic acid (C 14 ) fatty acid composition does yield surfactants (created by esterifying them with hydrophilic head groups) that produce excellent foaming properties. However, reliance on palm kernel oil is considered a major contributor to deforestation, threatening biodiversity and increasing greenhouse gas emissions.

[0005] There is an increasing interest in developing detergent compositions that are mild, have a positive impact on the environment and at the same time are stable and produce consumer desired properties. Accordingly, the present invention relates to a detergent composition that is substantially free of sulfates and has a reduced content of surfactants having a hydrophobic moiety derived from palm kernel oil. The detergent composition of the present invention comprises glutamate, aspartate or both, and optionally at least one additional anionic surfactant selected from isethionate, taurate and / or glycinate. The total anionic surfactant used in the detergent composition is typically 1 to 9 wt % (or 1.8 to 8 wt % or 2 to 7.2 wt % or 3.3 to 7.5 wt %), whereby the detergent composition is surprisingly mild, stable, produces a soft and smooth feel after use, and unexpectedly produces such consumer desired properties even when formulated with reduced levels of surfactants derived from palm kernel oil.

[0006] Additional Information

[0007] Efforts to make washing systems have been disclosed. In US Patent Application Publication 2011 / 245124A1, a washing cleanser having an alkanoyl compound, a fatty acyl isethionate surfactant, and a skin or hair benefit agent is described.

[0008] Other efforts to make washing systems have been disclosed. In US Patent Application Publication 2018 / 263879A1, a personal care composition with amphoacetate, glutamate and cocamide MIPA is described.

[0009] Even other attempts to prepare cleaning compositions have been described. In WO / 17063806, cleaning compositions containing an alkyl ether sulfate anionic surfactant, N-acyl glutamate and amido betaine are described.

[0010] US2021 / 401716 relates to sulfate-free rinse-off cleaning compositions and methods of use, particularly shampoo compositions, comprising a high oil loading.

[0011] None of the additional information describes the cleaning composition claimed herein. SUMMARY OF THE INVENTION

[0013] A cleaning composition comprising:

[0014] a) Anionic dicarboxylates comprising glutamate, aspartate or both, the glutamate and / or aspartate having the formula:

[0015]

[0016] b) amphoteric or zwitterionic surfactants or both; and

[0017] c) water,

[0018] wherein the pH of the composition is from 4.5 to 8.0, 1.5 to 90 wt%, preferably 1.75 to 80.0 wt%, and most preferably 2 to 70 wt% (or in other embodiments, 25 to 55 wt% or 35 to 45 wt%) of the total weight of surfactants are anionic surfactants, and further wherein 3.3 to 100 wt%, preferably 3.3 to 80 wt%, and most preferably 10.0 to 45 wt% (or in other embodiments, 15 to 40 wt% or 20 to 30 wt% or 22 to 28 wt%) of the total weight of anionic surfactants are anionic dicarboxylates, provided that 10 to 95 wt% (or in other embodiments, 50 to 90 wt% or 65 to 85 wt%) of the surfactants in the composition are neutralized, wherein:

[0019] i) Each R is independently H or C 1-3 alkyl, and wherein at least 50% of the R groups are H, and R 1 It is C8-C 22 alkyl, further provided that at least 20 to 100 wt %, preferably 40 to 100 wt %, most preferably 67.5 to 100 wt % of the total weight of anionic dicarboxylates present have fatty acid groups, R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 Palmitic acid group;

[0020] ii) Each X is independently H + 、Na + , K + , Ca + or Mg + , where each X is not H at the same time + ;and

[0021] iii) n is 0 or 1, and m is an integer from 0 to 3,

[0022] The composition has at least 10 to 55% of all surfactants free of hydrophobic groups derived from palm kernel oil.

[0023] In a second aspect, the present invention relates to a cleaning composition comprising:

[0024] a) anionic dicarboxylates comprising glutamate, aspartate or both, the glutamate and / or aspartate having the formula:

[0025]

[0026] b) anionic surfactants including taurates and isethionates;

[0027] c) at least one surfactant that is a zwitterionic surfactant; and

[0028] d) water,

[0029] wherein the pH of the composition is from 4.5 to 8.0, 1.5 to 90 wt%, preferably 1.75 to 80.0 wt%, and most preferably 2 to 70 wt% (or in other embodiments, 25 to 55 wt% or 35 to 45 wt%) of the total weight of surfactants are anionic surfactants a+b, and further wherein 3.3 to 90 wt%, preferably 3.3 to 80 wt%, and most preferably 10.0 to 45 wt% (or in other embodiments, 15 to 40 wt% or 20 to 30 wt% or 22 to 28 wt%) of the total weight of anionic surfactants a+b are anionic dicarboxylates, provided that 10 to 95 wt% (or in other embodiments, 50 to 90 wt% or 65 to 85 wt%) of the surfactants in the composition are neutralized, wherein:

[0030] i) Each R is independently H or C 1-3 alkyl, and wherein at least 50% of the R groups are H, and R 1 It is C8-C 22 alkyl, further provided that at least 20 to 100 wt %, preferably 40 to 100 wt %, and most preferably 67.5 to 100 wt % of the total weight of anionic dicarboxylates present have fatty acid groups, R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 Palmitic acid group;

[0031] ii) Each X is independently H + 、Na + , K + , Ca + or Mg + , where each X is not H at the same time + ;and

[0032] iii) n is 0 or 1, and m is an integer from 0 to 3,

[0033] The composition comprises:

[0034] I. 0.5 to 7% by weight of anionic dicarboxylates comprising glutamate, aspartate, or both;

[0035] II. 0.5 to 6% by weight of isethionate, which accounts for 5 to 40% by weight of the total weight percentage of anionic surfactants;

[0036] III. 0.5 to 8 wt% of taurate, which accounts for 5 to 70 wt% of the total weight percentage of anionic surfactants; and

[0037] IV. 0.5 to 8% by weight of a zwitterionic surfactant comprising betaine,

[0038] The composition has at least 10 to 55% of all surfactants free of hydrophobic groups derived from palm kernel oil.

[0039] In a third aspect, the present invention relates to a method for cleaning a surface, comprising the steps of:

[0040] a) contacting a surface with a cleaning composition according to the first and / or second aspects of the invention; and

[0041] b) shearing the cleaning composition on the surface;

[0042] c) Rinse with water and / or wipe off the cleaning composition on the surface.

[0043] All other aspects of the invention will become more apparent from the following description and examples.

[0044] Skin as used herein refers to skin including arms (including underarms), face, feet, neck, chest, hands, legs, buttocks and scalp (including hair). Washing compositions as used herein include and are not limited to household care cleaning compositions and cosmetic washing compositions. Cosmetic washing compositions include shampoos, cosmetic lotions, facial cleansers, personal care liquid body washes and two-in-one shampoo and body washes. Reduced levels of surfactants derived from palm kernel oil mean that 10 to 55%, preferably 15 to 45%, and most preferably 20 to 35% of all surfactants in the washing composition do not contain hydrophobic groups derived from palm kernel oil. Crude palm oil, wheat germ oil, pumpkin seed oil, rice bran oil and olive oil can be used as sources of hydrophobic group supply.

[0045] The cleaning composition of the present invention is ready for topical application and is wiped or washed off with water, preferably washed off. The composition may optionally contain a drug or therapeutic agent, but is preferably a cosmetic and non-therapeutic detergent. In one embodiment of the present invention, the composition may be a home care composition, such as a laundry, interior decoration, glass, desktop, sink or toilet cleaning composition. In another embodiment, the composition is a shampoo composition. In yet another embodiment, the cleaning composition is a personal washing and cleaning composition. Still in another embodiment of the present invention, the cleaning composition is a baby washing composition. As described below, when the composition of the present invention is cosmetic, it may optionally contain skin benefit ingredients added thereto, such as emollients, vitamins and / or derivatives thereof, resorcinols, retinoic acid precursors, colorants, moisturizers, sunscreens, mixtures thereof, etc. Skin benefit ingredients (or agents) may be water-soluble or oil-soluble. If used, oil-soluble skin benefit agents typically account for up to 1.75% by weight of the cleaning composition, while water-soluble skin benefit agents (when used) typically account for up to 10% by weight of the composition. The cleaning composition typically has a pH of 4.5 to 8.0. Unless otherwise stated, viscosity is measured at a temperature of 25°C using a sandblasted plate with a gap of 1000 microns using a Discovery HR-2 rheometer and a shear rate of 4 to 15 s -1As used herein, a stable detergent composition means a composition in which no discoloration, odor, phase separation and visible precipitation are observed after storage at least one (1) month at 25°C under atmospheric pressure conditions, preferably after storage for 2 to 4 months at 25°C. Stable foaming (or foam, i.e., a dispersion of gas bubbles in a liquid) means a 50% wash solution having a volume of at least 218 ml, as measured with a SITA Foam Tester R-2000 measuring device as described in the Examples. Substantially free means less than 1.5 wt%, or less than 1.55 wt%, or less than 1.0 wt%, or 0.0001 to 0.5 wt%, based on the total weight of the detergent composition, on a weight basis used. Substantially free means including the absence (i.e., 0.0 wt% of the composition) of specific ingredients as described herein, such as sulfate-based surfactants. The detergent compositions of the present invention may, for example, be substantially free of surfactants other than non-anionic dicarboxylates comprising glutamate, aspartate, or both, as well as taurates, isethionates, glycinates, amphoteric and / or zwitterionic surfactants. In another embodiment, the detergent composition of the present invention may, for example, be substantially free of surfactants other than anionic dicarboxylates comprising glutamate, isethionate and / or taurate, and zwitterionic surfactants comprising betaine or sulfobetaine. The term "comprising" is intended to include the terms "consisting essentially of" and "consisting of". For the avoidance of doubt and for illustration, the composition of the present invention comprising a surfactant and water is meant to include compositions consisting essentially of and compositions consisting of. Except in the operating comparative examples, or where otherwise explicitly indicated, all numbers in this specification indicating the amount or ratio of a material or conditions and / or the physical properties and / or use of a material are to be understood as modified by the word "about". All ranges given herein are meant to include all ranges contained therein. DETAILED DESCRIPTION OF THE INVENTION

[0047] As for the surfactants used in the present invention, 10 to 90% by weight of the surfactant is neutralized, preferably 50 to 90% by weight, and most preferably 65 to 85% by weight of the surfactant is neutralized. Neutralization is achieved with a base that preferably provides sodium and potassium ions as counterions. However, it is also within the scope of the present invention to neutralize the surfactant with calcium, magnesium, ammonium or substituted ammonium as counterions.

[0048] The total surfactant used in the cleaning composition of the present invention is generally 1 to 15 wt %, preferably 2 to 12 wt %, and most preferably 2.25 to 11.5 wt % based on the total weight of the cleaning composition. In one embodiment of the present invention, the total surfactant used is 2.75 to 11 wt % or 3 to 7.25 wt % or 3.35 to 6.95 wt % of the cleaning composition.

[0049] The cleaning compositions of the present invention contain anionic dicarboxylates, which include glutamate, aspartate, or both. Illustrative examples of glutamate suitable for use in the present invention include sodium lauroyl glutamate, sodium cocoyl glutamate, potassium lauroyl glutamate, potassium cocoyl glutamate, sodium or potassium palmitoyl glutamate, mixtures thereof, and the like. Illustrative examples of aspartate suitable for use alone or with glutamate include sodium lauroyl aspartate, potassium lauroyl aspartate, sodium cocoyl aspartate, potassium cocoyl aspartate, sodium or potassium palmitoyl aspartate, mixtures thereof, and the like.

[0050] As stated, 20 to 100 wt %, preferably 40 to 100 wt %, and most preferably 67.5 to 100 wt % (or in other embodiments, 28 to 65 wt % or 38 to 55 wt %) of the total weight of anionic dicarboxylates present have fatty acid groups R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 Palmitic acid groups. In one embodiment of the invention, at least 70% by weight of the total weight of anionic dicarboxylates present have fatty acid groups R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 Palmitic acid group. Therefore, preferred anionic dicarboxylates may include sodium palmitoyl glutamate, potassium palmitoyl glutamate, sodium palmitoyl aspartate, potassium palmitoyl aspartate, any of the C 1-3 In yet other embodiments of the present invention, 75 to 100% by weight of the anionic dicarboxylate has a fatty acid group, R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 In yet another embodiment, 85 to 100% by weight of the anionic dicarboxylates have fatty acid groups, R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 In yet another embodiment, 90 to 100% by weight of the anionic dicarboxylates have fatty acid groups, R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 In a further embodiment, 100% by weight of the anionic dicarboxylates have fatty acid groups, R 1 (CR2)(CR2) m COO-, which is a straight chain C 16Palmitic acid group. Preferred anionic dicarboxylates are sodium palmitoyl glutamate, potassium palmitoyl glutamate or mixtures thereof. Most preferably used is sodium palmitoyl glutamate.

[0051] In one embodiment of the present invention, 0.5 to 7 wt % of anionic dicarboxylates comprising glutamate, aspartate or both, based on the total weight of the washing composition, is used. In another embodiment of the present invention, 0.6 to 5 wt %, preferably 0.8 to 2.5 wt %, and most preferably 0.9 to 1.85 wt % of anionic dicarboxylates comprising glutamate, aspartate or both, based on the total weight of the washing composition, is used.

[0052] The weight percentage of anionic dicarboxylates comprising glutamate, aspartate or both constituting the total weight percentage of anionic surfactants in the cleaning composition is preferably 5 to 60%; more preferably 6 to 40%, and most preferably 7 to 33% (or 7.25 to 16.5%). In another embodiment, 9.5 to 15% by weight of anionic dicarboxylates comprising glutamate, aspartate or both constitute the total weight percentage of anionic surfactants in the cleaning composition.

[0053] In addition to the anionic dicarboxylates comprising glutamate, aspartate or mixtures thereof used, taurates which may be used are generally identified by the formula:

[0054] R 2 CONR 3 CH2CH2SO3M

[0055] Where R 2 It is C8-C 20 Alkyl, R 3 It is a C1-C4 alkyl group.

[0056] M is a solubilizing cation such as sodium, potassium, ammonium or substituted ammonium.

[0057] As for the isethionates which can be used, these generally include C8-C 18 Acyl isethionates. These esters are prepared by the reaction of an alkali metal isethionate with mixed aliphatic fatty acids having from 6 to 18 carbon atoms and an iodine value of less than 20. At least 75% of the mixed fatty acids have from 12 to 18 carbon atoms and a maximum of 25% of the mixed fatty acids have from 6 to 10 carbon atoms.

[0058] The acyl isethionate may be an alkoxylated isethionate, such as described in Llardi et al., entitled "Fatty Acid Esters of Polyalkoxylated isethonic acid," issued in U.S. Pat. No. 5,393,466 on February 28, 1995; which is incorporated herein by reference. The compound has the general formula:

[0059] R 4 C(O)O—C(X)H-CH2-(OC(Y)H-CH2) m -SO3M

[0060] Where R 4 is an alkyl group having 8 to 18 carbons, m is an integer from 1 to 4, X and Y are each independently hydrogen or an alkyl group having 1 to 4 carbons, and M is a solubilizing cation as described above.

[0061] In one embodiment of the present invention, if necessary, the anionic surfactant may further include sodium lauroyl isethionate, sodium cocoyl isethionate, sodium methyl lauroyl taurate, sodium methyl cocoyl taurate or a mixture thereof. Such anionic surfactants are commercially available.

[0062] Preferably, a mixture of sodium methyl lauroyl taurate and sodium lauroyl isethionate is used, and generally the weight ratio of sodium methyl lauroyl taurate to sodium lauroyl isethionate is 3:1 to 1:3, 2:1 to 1:2, 1.5:1 to 1:1.5, preferably 1.35:1 to 1:1.35, and most preferably 1.15:1 to 1:1.15. In one embodiment of the present invention, the weight ratio may be 1.1:1 to 1:1.1 or 1:1.

[0063] In another embodiment of the present invention, when used, 0.5 to 8 wt% of anionic surfactants comprising taurate are included based on the total weight of the cleaning composition. In another embodiment of the present invention, 0.6 to 5 wt%, preferably 1.6 to 3.5 wt%, and most preferably 0.9 to 2.5 wt% of anionic surfactants comprising taurate are used based on the total weight of the cleaning composition.

[0064] When used, the weight percentage of anionic surfactants comprising taurate to the total weight of anionic surfactants in the cleaning composition is preferably 5 to 75%; more preferably 6 to 50%, and most preferably 7 to 33%. In another embodiment, the anionic surfactant comprising taurate accounts for 9.5 to 25% by weight (or 9.65 to 20% by weight or 9.75 to 17.5% by weight) of the total weight percentage of anionic surfactants in the cleaning composition.

[0065] In one embodiment of the present invention, when used, 0.5 to 6 wt% of isethionate is included based on the total weight of the cleaning composition. In another embodiment of the present invention, 0.6 to 4 wt%, preferably 0.8 to 2.5 wt%, and most preferably 0.9 to 1.75 wt% of isethionate is used based on the total weight of the cleaning composition.

[0066] When used, the weight percentage of isethionate salts constituting the total weight percentage of anionic surfactants in the cleaning composition is generally 5 to 40%, or 5 to 30%, or 5 to 20%; preferably 6 to 17%, and most preferably 7 to 16%. In another embodiment, isethionate salts account for 9.5 to 14% by weight of the total weight percentage of anionic surfactants in the cleaning composition.

[0067] When both isethionates and taurates are used, they together typically comprise less than 6.2% by weight of the cleaning composition, preferably from 1.85 to 4.2% by weight, and most preferably from 2 to 3.75% by weight.

[0068] Glycinate is a suitable anionic surfactant that can be used for detergent compositions of the present invention. Illustrative examples include acyl glycinates with lauroyl, myristoyl, behenoyl, palmitoyl, stearyl, isostearyl, olive acyl, coconut oil acyl or oleoyl. Sodium and / or potassium coconut oil acyl glycinate are generally preferred. Other applicable glycinates include dihydroxyethyl oleyl glycinate and / or dihydroxyethyl stearyl glycinate.

[0069] In one embodiment of the invention, 0.5 to 6 wt % of glycine salt based on the total weight of the washing composition can be used. In another embodiment of the invention, 0.6 to 4 wt %, preferably 0.8 to 2.5 wt %, and most preferably 0.9 to 1.75 wt % of glycine salt based on the total weight of the washing composition is used.

[0070] When used, the weight percentage of glycine salts constituting the total weight percentage of anionic surfactants in the cleaning composition can be 5 to 50%; preferably 6 to 33%, and most preferably 7 to 25% (or 7.5 to 20% or 8 to 18%). In another embodiment, when used, glycine accounts for 9.5 to 14% by weight of the total weight percentage of anionic surfactants in the cleaning composition.

[0071] As for zwitterionic surfactants suitable for use in the present invention, such surfactants generally include at least one acid group. Such acid groups may be carboxylic acid groups or sulfonic acid groups. They generally include quaternary nitrogen and thus may be quaternary amino acids. They generally should include alkyl or alkenyl groups of 7 to 18 carbon atoms and generally conform to the following general structural formula:

[0072] R 5 --[--C(O)--NH(CH2) q --] r --N + (R 6 )(R 7 )A--B, where R 5 is an alkyl or alkenyl group of 7 to 18 carbon atoms; R 6 and R 7 Each is independently an alkyl, hydroxyalkyl or carboxyalkyl group of 1 to 3 carbon atoms; q is 2 to 4; r is 0 to 1; A is an alkylene group of 1 to 3 carbon atoms which is optionally substituted by a hydroxy group, and B is -CO2- or -SO3-.

[0073] Zwitterionic surfactants suitable for use herein and within the above formula include simple betaines of the formula:

[0074] R 5 -N + (R 6 )(R 7 )-CH2CO2 -

[0075] and amido betaine of the formula:

[0076] R 5 -CONH(CH2) t -N + -(R 6 )(R 7 )CH2CO2 - , where t is 2 or 3.

[0077] In both formulas, R 5 , R 6 and R 7 As defined above. 5 In particular, C derived from coconut oil may be 12 and C 14 mixture of alkyl groups such that at least half, preferably at least three quarters, of the R 5 The group has 10 to 14 carbon atoms. 6 and R 7 Preferred is methyl.

[0078] A further possibility is that the zwitterionic surfactant is a sulfobetaine of the formula:

[0079] R 5 -N + (R 6 )(R 7 )-(CH2)3SO3 -

[0080] or

[0081] R 5 -CONH(CH2) u -N + (R 6 )(R 7 )-(CH2)3SO3 -

[0082] Where u is 2 or 3, or where -(CH2)3SO3 - CH2C(OH)(H)CH2SO3 - Alternative variants thereof.

[0083] In these formulas, R 5 , R 6 and R 7 As defined above.

[0084] Illustrative examples of zwitterionic surfactants suitable for use include betaines, such as cocodimethyl carboxymethyl betaine, cocamidopropyl betaine and lauroamidopropyl betaine. Suitable additional zwitterionic surfactants include cocamidopropyl sulfobetaine. Such surfactants are commercially available, and it is also within the scope of the present invention to optionally use a mixture of such surfactants. Cocamidopropyl betaine is generally a zwitterionic surfactant that is preferably used.

[0085] Suitable amphoteric surfactants for use in the present invention (which may be zwitterionic, depending on the pH) include sodium acylamphoacetate, sodium acylamphopropionate, disodium acylamphodiacetate and disodium acylamphodipropionate, wherein the acyl group (i.e., alkanoyl) may contain C7-C 18 Alkyl moiety. Illustrative examples of suitable amphoteric surfactants include sodium lauroamphoacetate, sodium cocoamphoacetate or mixtures thereof.

[0086] As for the amphoteric and / or zwitterionic surfactant used, it usually accounts for 0.5 to 12% by weight of the cleaning composition, preferably 2 to 8% by weight, and most preferably 3 to 7.5% by weight. In one embodiment of the present invention, the amphoteric and / or zwitterionic surfactant used accounts for 4 to 7.25% by weight of the cleaning composition, preferably 4.65 to 7.15% by weight, more preferably 5.65 to 7.0% by weight.

[0087] In yet another embodiment of the present invention, the weight ratio of total amphoteric and / or zwitterionic surfactants to total anionic surfactants used in the cleaning composition is from 1: 1 to 3: 1, preferably from 1.25: 1 to 2.25: 1, and most preferably from 1.45: 1 to 2: 1. In yet another embodiment of the present invention, the weight ratio of amphoteric and / or zwitterionic surfactants to anionic surfactants used in the cleaning composition is from 1.48: 1 to 1.65: 1 or from 1.50: 1 to 1.60: 1.

[0088] For the avoidance of doubt, the anionic surfactant used in the present invention may be all (100 wt%) glutamate and / or aspartate, and isethionate and / or taurate, and the zwitterionic surfactant may be all (100 wt%) betaine, whereby the cleaning composition may contain less than 2.5 wt% or 2 wt% or 1 wt% or 0.5 wt% of any other surfactant (or 0.0 wt% of any other surfactant), including cationic, nonionic and any other anionic surfactant, including sulfate-based surfactants and alpha-olefin sulfonates.

[0089] As for any optional surfactants that may be used with the surfactant system of the present invention, these include anionic surfactants that may be fatty sulfonates, such as primary alkanes (e.g., C8-C 22 ) sulfonates, primary alkanes (e.g., C8-C 22 ) disulfonate, C8-C 22 Olefin sulfonates, C8-C 22 Hydroxyalkane sulfonates or alkyl glyceryl ether sulfonates (AGS); or aromatic sulfonates, such as alkylbenzene sulfonates. The anionic surfactant can also be an alkyl sulfate (e.g., C8-C 18 Alkyl sulfates) or alkyl ether sulfates (including alkyl glyceryl ether sulfates). Alkyl ether sulfates include those having the formula:

[0090] R 8 O(CH2CH2O) n SO3M

[0091] Where R 8 is an alkyl or alkenyl group having 8 to 18 carbons, preferably 12 to 18 carbons, the average value of n is at least 1.0, preferably less than 5, most preferably 1 to 4, and M is as defined above.

[0092] Anionic surfactants may optionally include alkyl sulfosuccinates (including mono- and di-alkyl, e.g., C6-C 22 sulfosuccinates); alkyl and acyl sarcosinates; sulfoacetates; C8-C 22Alkyl phosphates and phosphonates; alkyl phosphate esters and alkoxyalkyl phosphate esters, acyl lactylates, C8-C 22 Monoalkyl succinates and maleates, sulfoacetates, alkyl glucosides and mixtures thereof, and the like.

[0093] Suitable sulfosuccinates for optional use may be monoalkylsulfosuccinates having the formula:

[0094] R 9 OC(O)CH2CH(SO3M)CO2M;

[0095] and the amide-MEA sulfosuccinate of the formula:

[0096] R 9 CONHCH2CH2OC(O)CH2CH(SO3M)CO2M, where R 9 For C8-C 22 The range of alkyl groups wherein M is as defined above.

[0097] Sarcosinate is generally represented by the following formula:

[0098] R 10 CON(CH3)CH2CO2M, where R 10 For C8-C 20 The range of alkyl groups, and M are as defined above.

[0099] The nonionic surfactants which may be used optionally include, in particular, the reaction products of compounds having a hydrophobic group and an active hydrogen atom (e.g., aliphatic alcohols, acids, amides or alkylphenols) with alkylene oxides (in particular, ethylene oxide alone or together with propylene oxide). Specific nonionic surfactant compounds are alkyl (C6-C 22 )phenol ethylene oxide condensation products, aliphatic (C8-C 18 ) condensation products of straight or branched primary or secondary alcohols with ethylene oxide, and products prepared by the condensation of ethylene oxide with the reaction product of propylene oxide and ethylenediamine. Other nonionic surfactants include long chain tertiary amine oxides, long chain tertiary phosphine oxides, dialkyl sulfoxides, etc.

[0100] In one embodiment of the present invention, the optional nonionic surfactant comprises a fatty acid / alcohol ethoxylate having the following structure: a) HOCH2(CH2) s (CH2CH2O) v H or b) HOOC(CH2) c (CH2CH2O) dH; wherein s and v are each independently an integer of up to 18; c and d are each independently an integer of 1 or greater. In one embodiment of the present invention, s and v are each independently 6 to 18; c and d are each independently 1 to 30. Other options for nonionic surfactants include those having the formula HOOC(CH2) i -CH=CH-(CH2) k (CH2CH2O) z H, wherein i, k are each independently 5 to 15; and z is 5 to 50. In another embodiment of the present invention, i and k are each independently 6 to 12; and z is 15 to 35.

[0101] Optional nonionic surfactants may also include sugar amides, such as polysaccharide amides.

[0102] Specifically, the surfactant can be one of the lactobionamides described in U.S. Pat. No. 5,389,279, entitled "Compositions Comprising Nonionic Glycolipid Surfactants" to Au et al., issued February 14, 1995; the document is incorporated herein by reference, or it can be one of the sugar amides described in U.S. Pat. No. 5,009,814, entitled "Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems" to Kelkenberg, issued April 23, 1991; it is incorporated herein by reference. Cocamide monoethanolamine (cocamide MEA) is a preferred optional nonionic surfactant suitable for use.

[0103] Still other optional nonionic surfactants useful in the surfactant system and end-use compositions of the present invention include nonionic glucamides such as lauroyl methyl glucamide, myristoyl methyl glucamide, cocoyl methyl glucamide, capryl / hexanoyl methyl glucamide, sunfloweroyl methyl glucamide, mixtures thereof, and the like. When used, the nonionic surfactant comprises no more than 1.5 wt. %, preferably 0.001 to 1.4 wt. %, and most preferably 0.01 to 1 wt. %, based on the total weight of the cleaning composition.

[0104] In yet another embodiment of the present invention, a cationic surfactant may optionally be used.

[0105] One class of cationic surfactants includes heterocyclic ammonium salts such as cetyl or octadecyl pyridinium chloride, alkylamidoethylpyridinium methylsulfate, and lapikonium chloride.

[0106] Tetraalkylammonium salts are another useful class of cationic surfactants suitable for use. Examples include hexadecyl or octadecyl trimethyl ammonium chloride or bromide; hydrogenated palm or tallow trimethyl ammonium halides; behenyl trimethyl ammonium halides or methyl ammonium sulfates; decyl isononyl dimethyl ammonium halides; ditallow (or distearyl) dimethyl ammonium halides; and behenyl dimethyl ammonium chloride.

[0107] Still other types of cationic surfactants that can be used are various ethoxylated quaternary amines and esterquats. Examples include PEG-5 stearyl ammonium lactate (e.g., Genamin KSL manufactured by Clariant), PEG-2 coconut ammonium chloride, PEG-15 hydrogenated tallow ammonium chloride, PEG 15 stearyl ammonium chloride, dipalmitoyl ethyl methyl ammonium chloride, dipalmitoyl hydroxyethyl methyl sulfate, and stearamidopropyl dimethylamine lactate.

[0108] Even other useful cationic surfactants suitable for use include quaternized hydrolysates of silk, wheat and keratin, and it is within the scope of the present invention to use mixtures of the foregoing cationic surfactants.

[0109] If optionally used, cationic surfactants comprise no more than 1.0% by weight of the cleaning composition. When present, they typically comprise from 0.01 to 0.7%, more typically from 0.1 to 0.5% by weight of the cleaning composition.

[0110] A suitable pH adjuster may be used to adjust / buffer pH. Such pH adjusters include triethylamine, NaOH, KOH, H2SO4, HCl, C6H8O7 (i.e., citric acid), or mixtures thereof. The pH adjuster is added in an amount such that the resulting pH of the detergent composition is 4.5 to 8, typically 5.5 to 7.8, preferably 5.9 to 7.5, and most preferably 6 to 6.85 or 6.8 to 7.2. The pH value may be assessed using commercial instruments, such as those available from Thermo Scientific. and pH meters commercially available from VWR Scientific. Sunscreens such as titanium dioxide and / or zinc oxide may also be optionally used. When used, sunscreens comprise from 0.01 to 3% by weight of the cleaning composition.

[0111] Optional skin benefit agents are suitable for use herein only to the extent that they can be topically applied and are soluble in the cleansing composition at the defined pH.

[0112] Illustrative examples of beneficial agents suitable for inclusion in the water portion of the surfactant system and the composition are acids, such as amino acids, such as arginine, valine or histidine. Suitable additional water-soluble beneficial agents include vitamin B2, niacinamide (vitamin B3), vitamin B6, vitamin C, mixtures thereof, etc. Water-soluble derivatives of these vitamins may also be used. For example, vitamin C derivatives such as ascorbyl tetraisopalmitate, magnesium ascorbyl phosphate and ascorbyl glycosides may be used alone or in combination with one another. Suitable other water-soluble beneficial agents include 4-ethylresorcinol, extracts such as sage, aloe, green tea, grape seed, thyme, chamomile, yarrow, cucumber, licorice, rosemary extracts or mixtures thereof. Water-soluble sunscreens may also be used, such as ensolizole. When present in the present invention, the total amount of optional water-soluble benefit agents (including mixtures) may range from 0.0 to 10 wt %, preferably 0.001 to 8 wt %, and most preferably 0.01 to 6 wt %, based on the total weight of the cleaning composition, and including all ranges subsumed therein.

[0113] It is also within the scope of the present invention to optionally include oil-soluble (ie, non-water-soluble) benefit agents. The only limitation regarding such oil-soluble benefit agents is that they are suitable for providing a benefit to the skin when applied topically.

[0114] Illustrative examples of the types of oil-soluble benefit agents that may optionally be used in the end-use compositions of the present invention include components such as stearic acid, vitamins such as vitamins A, D, E and K (and their oil-soluble derivatives), sunscreens such as ethylhexyl methoxycinnamate, bis-ethylhexyloxyphenol methoxyphenol triazine, 2-ethylhexyl-2-cyano-3,3-diphenyl-2-propionic acid, drometrizole trisiloxane, 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate, 2-ethylhexyl-2-hydroxybenzoate, or mixtures thereof.

[0115] Other optional oil-soluble benefit agents suitable for use include resorcinols, such as 4-hexylresorcinol, 4-phenylethylresorcinol, 4-cyclopentylresorcinol, 4-cyclohexylresorcinol, 4-isopropylresorcinol, or mixtures thereof. 5-substituted resorcinols may also be used, such as 4-cyclohexyl-5-methylbenzene-1,3-diol, 4-isopropyl-5-methylbenzene-1,3-diol, isobutylamidothiazolylresorcinol, mixtures thereof, and the like. 5-substituted resorcinols and their synthesis are described in commonly assigned U.S. Patent Application Publication No. 2016 / 0000669A1.

[0116] Even other applicable oil-soluble active substances include ω-3 fatty acids, ω-6 fatty acids, climbazole, farnesol, ursolic acid, myristic acid, geranylgeraniol, oleyl betaine, cocoyl hydroxyethyl imidazoline, caproyl sphingosine, 12-hydroxystearic acid, petroselinic acid, conjugated linoleic acid, pinene alcohol, thymol and mixtures thereof. In one embodiment of the invention, the optional oil-soluble beneficial agent used is a retinoic acid precursor. In one embodiment of the invention, the retinoic acid precursor is retinol, retinal, propionate retinyl, palmitate retinyl, acetate retinyl or mixtures thereof. Propionate retinyl, palmitate retinyl and mixtures thereof are generally preferred.

[0117] Yet another suitable retinoic acid precursor is supplied by Molecular Design International under the trade name Commercially available p-methoxyphenyloxyethanol retinoate (hydroxyanasatil retinoate). It can be used in a mixture with the oil-soluble active substances described herein. When the optional (i.e., 0.0 to 1.75 weight %) oil-soluble active substance is used in the non-aqueous phase of the cleaning composition of the present invention, it generally accounts for 0.001 to 1.75 weight % of the total weight of the cleaning composition, in another embodiment, 0.05 to 1.2 weight %, and in yet another embodiment, 0.1 to 0.5 weight %.

[0118] Preservatives can be ideally incorporated into the cleaning composition to prevent the growth of potentially harmful microorganisms. Cosmetic chemists are familiar with suitable preservatives and routinely select them to meet preservative challenge tests and provide product stability. Suitable traditional preservatives include hydantoin derivatives and propionates. Particularly preferred preservatives are iodopropynyl butylcarbamate, phenoxyethanol, 1,2-octanediol, hydroxyacetophenone, ethylhexylglycerol, hexylene glycol, methylparaben, propylparaben, imidazolidinyl urea, sodium dehydroacetate, dimethyl-dimethyl (DMDM) hydantoin, benzyl alcohol, methylisothiazolinone, sodium benzoate or mixtures thereof. Other suitable preservatives include sodium dehydroacetate, chlorphenesin and decanediol. The preservative should be selected taking into account the use of the composition and possible incompatibility between the preservative and other ingredients in the emulsion. The preservative is preferably used in an amount ranging from 0.01% by weight to 2% by weight of the total weight of the cleaning composition. Also preferred are preservative systems having hydroxyacetophenone alone or in mixture with other preservatives. Even other preferred systems include those using Galguard Lipo G (Galaxy Surfactants), sodium gluconate, sodium benzoate or mixtures thereof.

[0119] Conventional emollients such as caprylyl glycol and other conventional alkane diols may also be used in the cleaning compositions.When used, the emollients comprise from 0.1 to 1.75 wt %, preferably from 0.2 to 1.25 wt %, and most preferably from 0.3 to 0.95 wt % of the composition.

[0120] Thickeners (or viscosity enhancers) are optionally suitable for use in the surfactant systems and end-use compositions of the present invention. Preferred thickeners may be naturally derived or synthetic, are suitable for use in compositions having a pH of 4.5 to 8.0, and are suitable for use in compositions having excellent foaming / lathering qualities. Examples include hydroxypropyl starch phosphate, rheology-modified fatty acids, starches, and natural or chemically modified polysaccharides. Suitable polysaccharides include cellulose; microcrystalline cellulose; hemicellulose; cellulose gum; pectin, such as homogalactan, xylogalactan, rhamnogalactan; exudate polysaccharide gums, such as gum arabic, tragacanth, acacia, karaya, ghatti; extracted polysaccharide gums, such as konjac, guar, locust bean, mustard mucilage gum, linseed gum, okra gum, psyllium gum; seaweed polysaccharides, such as carrageenan, agar or alginate; microbial polysaccharides, such as xanthan gum, gellan gum or pullulan gum; fermented polysaccharides, such as sclerotium gum; diyutan gum, fructan, such as inulin or levan; or mixtures thereof. Other suitable thickeners include acids, such as capric acid, lauric acid, stearic acid, myristic acid or palmitic acid, or mixtures thereof. Still others include acrylate copolymers, polymeric viscosity aids, such as polyalkoxylated polyols and esters of fatty acids. Examples of such thickeners include Rheocare from BASF TM TTA, from Clariant AV, Aculyn from Dow Chemical TM , commercially available from Lubrizol INCI names for PEG18 Glyceryl Oleate / Cocoate, Polyethylene Glycol 6000 Distearate, PEG-150 Distearate; PEG120 Methyl Glucose Dioleate and PEG 120 Methyl Glucose Trioleate TM DOE-120 and Glucomate TM VLT, provided by Lubrizol); PEG-150 pentaerythritol tetrastearate (Crothix TM 、Crothix TM Liquid and Versathix TM , provided by Croda); PEG-150 polyglyceryl-2 tristearate (provided by Clariant LT); PEG / PPG-120 / 10-trimethylolpropane trioleate (provided by BASF TT).

[0121] Typical amounts may range from 0.0 to 12%, usually 0.0 to 8%, preferably 0.001 to 6%, and most preferably 0.01 to 5% by weight of the cleaning composition. In one embodiment of the invention, the thickener may comprise 0.02 to 1% by weight of the cleaning composition.

[0122] Fragrances, fixatives, chelating agents (such as EDTA) salts (such as NaCl) and exfoliants may optionally be included in the cleaning compositions of the present invention. Each of these materials may range from about 0.03 to about 5% by weight, preferably 0.1 to 3% by weight of the cleaning composition. To the extent exfoliants are used, those selected should have a sufficiently small particle size so that they do not interfere with the performance of the cleaning composition or any packaging from which it is dispensed.

[0123] Conventional emulsifiers having an HLB greater than 8 may optionally be used. Illustrative examples include Tween, 40, 60, 80, polysorbate 20 and mixtures thereof. Typically, emulsifiers for water continuous systems (when used) comprise from 0.3 to 2.5 wt % of the cleaning composition.

[0124] Conventional wetting agents can be optionally used as additives in the present invention to help skin moisturizing when this emulsion is topically applied. These are generally polyol-type materials. Typical polyols include glycerol (i.e. glycerol or glycerol), propylene glycol, dipropylene glycol, polypropylene glycol (e.g., PPG-9), polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol, isopentyl glycol, 1,2,6-hexanetriol, ethoxylated glycerol, propoxylated glycerol and mixtures thereof. Glycerol, propylene glycol or mixtures thereof are most preferred. The amount of the wetting agent used can be any range of 0.0 to 35 % by weight of the liquid and the total weight of the composition. Typically, the wetting agent accounts for 0.0 to 20 % by weight of the total weight of the washing composition, preferably 0.001 to 15 % by weight (most preferably, 2 to 12 % by weight).

[0125] Lamellar liquid washing can be induced with a structurant which is preferably a fatty acid. More preferably, the structurant is selected from caprylic acid, lauric acid, myristic acid or mixtures thereof. Typically, the structurant comprises 1 to 12 wt %, preferably 2 to 10 wt %, and most preferably 3 to 8.5 wt % of the washing composition.

[0126] The cleaning compositions of the present invention may and preferably do contain less than 3% by weight of soap (e.g., C 14 -C 18 Fatty acid soap), preferably less than 1.5 wt% soap, and most preferably no soap.

[0127] When preparing the cleaning composition of the present invention, the required ingredients can be mixed with conventional equipment under moderate shear atmospheric conditions at a temperature of 25° C. to 80° C. Such cleaning compositions typically have a viscosity of 1.0 to 25,000 cps, preferably 500 to 20,000 cps, and most preferably 1000 to 13,500 cps. In one embodiment of the present invention, the viscosity of the cleaning composition is 3,250 to 9,500 cps.

[0128] The packaging of the cleaning composition of the present invention may be a pump dispenser, a tube, a can or a plastic bottle. Preferably, the packaging is a bottle made of recyclable material and / or post-consumer resin.

[0129] The following examples are provided to facilitate the understanding of the present invention. They are not intended to limit the scope of the claims. Example

[0130] The following base cleaning compositions were prepared by mixing the ingredients identified in Table 1 at atmospheric pressure and a temperature of 25 to 75° C. The target pH was 6.8 to 7.2.

[0131] Table I

[0132]

[0133]

[0134] Embodiment 1

[0135] The surfactant added to the above base composition is determined as a percentage by weight of the base composition.

[0136] Comparative surfactant

[0137] Sodium Lauroyl Isethionate (2.1%); Sodium Methyl Lauroyl Taurate (2.1%); Cocamidopropyl Betaine (6.5%)

[0138] Reduced palm kernel oil surfactants of the present invention

[0139] Sodium Lauroyl Isethionate (1.4%); Sodium Methyl Lauroyl Taurate (1.4%); Sodium Palmitoyl Glutamate (1.4%); Cocamidopropyl Betaine (6.5%)

[0140] The foam volume (in ml) as shown in the data in Table II was measured using a SITA Foam Tester R-2000 measuring device, the temperature was set at 40°C and the device was set to automatic. The compositions prepared according to the present invention produced equivalent amounts of foam when compared to the compositions prepared with the control surfactant.

[0141] The cleaning compositions prepared according to the present invention were stored for 4 months at 25°C. Surprisingly, with reduced levels of palm kernel oil derived surfactants, the cleaning compositions were stable, had no syneresis, and had no color and odor changes as determined by trained panelists. In addition, after washing with the compositions consistent with the present invention, the panelists concluded that the cleaning compositions lathered well, rinsed easily, and produced a soft and smooth feel after use.

[0142] Table II

[0143]

[0144]

[0145] Example II

[0146] The CIM (colorimetric index of mildness) of the cleaning composition was determined by the Corneosurfametry ex vivo test method under standard testing conditions using the procedure outlined in the technical publication of Liu et al., "Modified Corneosurfametry as a new accelerated high-throughput ex-vivo methodology for predicting cleanser effects towards human skin", International Journal of Cosmetic Science, Vol. 38, pg. 178-186, 2016.

[0147] Table III

[0148] Cleaning composition Color Index of Mildness (CIM) water 749 Comparative surfactant 70.6 Reduced Palm Kernel Oil Surfactant 74.2

[0149] The data in Table III surprisingly show that when the reduced palm kernel oil surfactant according to the present invention is used in the base composition, the cleaning composition is significantly milder and similar to the mildness of water.

[0150] Example III

[0151] Table IV

[0152]

[0153]

[0154] *Surfactants: sodium lauroyl isethionate (SLI), sodium methyl lauroyl taurate (SMLT), sodium palmitoyl glutamate (SPG), cocamidopropyl betaine (CAPB), respectively expressed in weight percentage.

[0155] * Hydroxypropyl starch phosphate / microcrystalline cellulose

[0156] The data in Table IV surprisingly show that washing compositions containing sodium palmitoyl glutamate according to the present invention can be stabilized using natural polymer systems such as starch and cellulose as well as a synthetic thickening system consisting of Carbapol 980 and Versathix. The stability of the composition with sodium palmitoyl glutamate is surprisingly consistent with washing compositions with traditional surfactants derived from palm kernel oil.

Claims

1. A cleaning composition comprising: a) Anionic dicarboxylates comprising glutamate, aspartate or both, said glutamate and / or aspartate having the formula: b) amphoteric or zwitterionic surfactants or both; and c) water, wherein the pH of the composition is from 4.5 to 8.0, 1.5 to 90 wt%, preferably 1.75 to 80.0 wt%, and most preferably 2 to 70 wt% of the total weight of surfactants are anionic surfactants, and further wherein 3.3 to 100 wt%, preferably 3.3 to 80 wt%, and most preferably 10.0 to 45 wt% of the total weight of anionic surfactants are said anionic dicarboxylates, provided that 10 to 95 wt% of the surfactants in the composition are neutralized, wherein: i) Each R is independently H or C 1-3 alkyl, and wherein at least 50% of the R groups are H, and R 1 It is C8-C 22 alkyl, with the further proviso that at least 20 to 100 wt %, preferably 40 to 100 wt %, and most preferably 67.5 to 100 wt % of the total weight of anionic dicarboxylates present have a fatty acid group R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 Palmitic acid group; ii) Each X is independently H + 、Na + , K + , Ca + or Mg + , where each X is not H at the same time + ; and iii) n is 0 or 1, and m is an integer from 0 to 3, The composition has at least 10 to 55% of all surfactants free of hydrophobic groups derived from palm kernel oil.

2. A cleaning composition according to claim 1 further comprising at least one anionic surfactant which is a taurate, isethionate or glycinate.

3. The cleaning composition according to claim 2, comprising: a) Anionic dicarboxylates comprising glutamate, aspartate or both, said glutamate and / or aspartate having the formula: b) anionic surfactants including taurates and isethionates; c) at least one surfactant that is a zwitterionic surfactant; and d) water, wherein the pH of the composition is from 4.5 to 8.0, 1.5 to 90 wt%, preferably 1.75 to 80.0 wt%, and most preferably 2 to 70 wt% of the total weight of surfactants are anionic surfactants a+b, and further wherein 3.3 to 90 wt%, preferably 3.3 to 80 wt%, and most preferably 10.0 to 45 wt% of the total weight of anionic surfactants a+b are the anionic dicarboxylates, provided that 10 to 95 wt% of the surfactants in the composition are neutralized, wherein: i) Each R is independently H or C 1-3 alkyl, and wherein at least 50% of the R groups are H, and R 1 It is C8-C 22 alkyl, further provided that at least 20 to 100 wt %, preferably 40 to 100 wt %, and most preferably 67.5 to 100 wt % of the total weight of anionic dicarboxylates present have fatty acid groups R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 Palmitic acid group; ii) Each X is independently H + 、Na + , K + , Ca + or Mg + , where each X is not H at the same time + ;and iii) n is 0 or 1, and m is an integer from 0 to 3, The composition comprises: I. 0.5 to 7% by weight of anionic dicarboxylates comprising glutamate, aspartate, or both; II. 0.5 to 6% by weight of isethionate, which accounts for 5 to 40% by weight of the total weight percentage of anionic surfactants; III. 0.5 to 8 wt% of taurate, which accounts for 5 to 70 wt% of the total weight percentage of anionic surfactants; and IV. 0.5 to 8% by weight of a zwitterionic surfactant comprising betaine, The composition has at least 10 to 55% of all surfactants free of hydrophobic groups derived from palm kernel oil.

4. The composition according to claim 3, wherein the anionic dicarboxylate comprising glutamate, aspartate or both accounts for 5 to 60 weight percent of the total weight percent of anionic surfactants.

5. A composition according to any one of the preceding claims, wherein each R is independently H or C 1-3 alkyl, and at least 50% of the R groups are H, and R 1 For C8-C 22 alkyl, further provided that from 67.5 to 100% by weight of the total weight of anionic dicarboxylates present have fatty acid groups R 1 (CR2)(CR2) m COO-, which is a straight chain C 16 Palmitic acid group.

6. A composition according to any one of the preceding claims wherein the total surfactant used is from 2 to 12% by weight of the composition and the total anionic surfactant is from 1.8 to 8% by weight of the composition.

7. A composition according to any one of the preceding claims, wherein the composition has a pH of 5.5 to 7.

8.

8. The composition according to any one of the preceding claims, wherein the composition further comprises 12-hydroxystearic acid.

9. A composition according to any preceding claim wherein from 15 to 45% of all surfactants in the detergent composition do not contain hydrophobic groups derived from palm kernel oil.

10. A composition according to any preceding claim wherein from 20 to 35% of all surfactants in the detergent composition do not contain hydrophobic groups derived from palm kernel oil.

11. A composition according to any one of the preceding claims, wherein the composition is substantially free of sulfate-based surfactants.

12. A composition according to any one of the preceding claims, wherein 25 to 55 wt%, preferably 35 to 45 wt% of the total surfactants are anionic surfactants and 15 to 40 wt%, preferably 20 to 30 wt%, and most preferably 22 to 28 wt% of the total weight of anionic surfactants are the anionic dicarboxylates.

13. A composition according to any one of the preceding claims, wherein 50 to 90 wt%, preferably 65 to 85 wt% of the surfactant in the composition is neutralized.

14. A method for cleaning a surface comprising the steps of: a) contacting a surface with a cleaning composition according to any one of the preceding claims; and a) shearing said cleaning composition on said surface; b) rinsing and / or wiping the cleaning composition off the surface with water.

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