Stable detergent composition with unsaturated zwitterionic surfactant

Abstract

The present invention relates to a stable composition laundry composition. The laundry composition comprises a mixture of a biodegradable thickener and an unsaturated zwitterionic surfactant. The detergent composition has a stable viscosity and surprisingly, does not undergo syneresis, discoloration and off-odor even after storage at elevated temperatures.

Description

Field of the Invention

[0001] The present invention relates to a stable cleaning composition comprising a biodegradable thickener. More specifically, the present invention relates to a cleaning composition comprising water, an anionic surfactant and a biodegradable thickener used with an unsaturated zwitterionic surfactant. Such a composition surprisingly produces excellent foaming and viscosity characteristics, is easy to clean, has no syneresis, and maintains a stable viscosity after storage at elevated temperatures, even when formulated to be substantially free of soaps and sulfates, and primarily free of synthetic thickeners such as ammonium acryloyldimethyltaurate-vinyl pyrrolidone copolymer, alkyl acrylate crosspolymers, and the like. Background Art

[0002] Washing compositions are commonly used to clean surfaces, such as the skin, and generally reduce the shine associated with sebum produced in specialized epithelial cells called sebocytes. They are also used to minimize bacteria on surfaces, such as hands and faces, so washing is considered the most effective way to prevent the spread of germs and bacteria. In fact, experts believe that washing regularly throughout the day can reduce the number of consumers who catch a cold by about 50%.

[0003] Consumers know that to minimize the risk of getting sick, it is generally good practice to clean their hands regularly and not touch their face, eyes, and mouth. Information from the Centers for Disease Control and Prevention indicates that the COVID-19 (coronavirus) outbreak is a direct result of a virus that is more efficient and severe than influenza and spreads rapidly from person to person through respiratory droplets. During outbreaks like this, consumers understand, and medical professionals emphasize, that it is in everyone’s best interest to consistently wash their hands and face, as well as wash inanimate surfaces they touch before use.

[0004] As consumers wash more frequently, it is highly desirable to develop cleaning compositions that are not only beneficial to consumers but also pleasant to use and more environmentally friendly. Accordingly, the present invention relates to a stable cleaning composition comprising water, anionic surfactants, biodegradable thickeners, and unsaturated zwitterionic surfactants. The cleaning composition surprisingly produces excellent foaming and viscosity characteristics, has no syneresis, and maintains a stable viscosity after storage at elevated temperatures, even when formulated to be substantially free of soaps and sulfates, and primarily free of synthetic thickeners such as ammonium acryloyldimethyltaurate-vinyl pyrrolidone copolymers, alkyl acrylate crosspolymers, and the like.

[0005] Additional Information

[0006] Attempts to prepare cleaning compositions have been disclosed. In U.S. Patent Application No. 2019 / 008738A1, a personal care composition having a cationic surfactant, a nonionic surfactant, and a polyacrylate cross-linked polymer structurant is described. The cleaning composition may include carrageenan as a thickener.

[0007] Other attempts to prepare washing compositions have been disclosed. In U.S. Patent Application No. 2019 / 0359735A1, water-soluble hybrid polymers suitable for body washing are described.

[0008] Even other efforts to prepare cleaning compositions have been disclosed. In US Pat. No. 6,566,313, shampoo and body wash compositions are described having a conditioning complex formed from a tertiary alkyl amidoamine and a phosphate ester.

[0009] Other attempts to make washing compositions are also described. In US Pat. No. 9,549,885, scalp care compositions are described that may contain synthetic rheology modifiers such as acrylamide / ammonium acrylate / C10-C30 alkyl acrylate crosspolymer or acrylates / steareth-20 itaconate copolymer.

[0010] Other efforts to prepare cleaning compositions have also been described. In US Pat. No. 7,375,063, cleaning compositions having an aqueous acrylate copolymer emulsion, an amphoteric surfactant, and an anionic surfactant are described.

[0011] None of this additional information describes compositions having a biodegradable thickener and an unsaturated zwitterionic surfactant as claimed herein. Summary of the invention

[0012] In a first aspect, the present invention relates to a cleaning composition comprising:

[0013] a) at least one anionic surfactant;

[0014] b) unsaturated zwitterionic surfactants;

[0015] c) 0-2 wt% of a nonionic surfactant; and

[0016] d) a thickener having starch and at least one of cellulose and gum,

[0017] wherein the unsaturated zwitterionic surfactant comprises a hydrophobic tail comprising 2.5 to 20 wt%, preferably 3.5 to 15 wt%, most preferably 4 to 14 wt% (or 4.5 to 13 wt%) of C18:1, and 0.45 to 4.5 wt%, preferably 0.75 to 4 wt%, most preferably 1 to 2 wt% (or 1.45 to 1.65 wt%) of C18:2, and 5 to 22 wt%, preferably 6.5 to 20 wt%, most preferably 7.5 to 18 wt% (or 8.5 to 17.5 wt%) of total C8 and C18:1 based on the total weight of the hydrophobic tail on the zwitterionic surfactant. 10 Carbon chain.

[0018] In a second aspect, the present invention relates to a cleaning composition comprising:

[0019] a) anionic surfactants including glutamate, glycinate, taurate, isethionate or mixtures thereof;

[0020] b) unsaturated betaines, sulfobetaines or both;

[0021] c) 0-2 wt% of a nonionic surfactant; and

[0022] d) a thickener having starch and at least one of cellulose and gum,

[0023] Wherein the unsaturated betaine comprises a hydrophobic tail, which comprises 2.5 to 20 wt%, preferably 3.5 to 15 wt%, most preferably 4 to 14 wt% (or 4.5 to 13 wt%) of C18:1, and 0.45 to 4.5 wt%, preferably 0.75 to 4 wt%, preferably 1 to 3 wt% (or 1.45 to 2.65 wt%) of C18:2, and 5 to 22 wt%, preferably 6.5 to 20 wt%, most preferably 7.5 to 18 wt% (or 8.5 to 17.5 wt%) of C8 and C18:1, based on the total weight of the hydrophobic tail on the unsaturated betaine. 10 The total hydrophobic tail of the carbon chain.

[0024] In a third aspect, the present invention relates to a cleaning composition comprising:

[0025] a) anionic surfactants including isethionate, glycinate, glutamate, taurate or mixtures thereof;

[0026] b) a zwitterionic surfactant comprising betaine, sultaine or both, the zwitterionic surfactant comprising a hydrophobic tail comprising 2.5 to 20 wt%, preferably 3.5 to 15 wt%, most preferably 4 to 14 wt% (or 4.5 to 13 wt%) of C18:1, and 0.45 to 4.5 wt%, preferably 0.75 to 4 wt%, preferably 1 to 2 wt% (or 1.45 to 1.65 wt%) of C18:2, and 5 to 22 wt%, preferably 6.5 to 20 wt%, most preferably 7.5 to 18 wt% (or 8.5 to 17.5 wt%) of a hydrophobic tail comprising C8 and C18:1, based on the total weight of the hydrophobic tail on the zwitterionic surfactant. 10 The total hydrophobic tail of the carbon chain, the C8 and C 10 The hydrophobic tails are present in a weight ratio of 3:7 to 7:3, preferably 4:6 to 6:4, most preferably 4.5:5.5 to 5.5:4.5; and

[0027] c) A thickener having starch and at least one of cellulose and gum.

[0028] In a fourth aspect, the present invention relates to a method of cleansing a surface, including the skin on the face and / or body, by contacting the surface with at least one of the cleansing compositions of the first three aspects of the invention.

[0029] All other aspects of the invention will become more readily apparent from the following description and examples.

[0030] As used herein, skin means skin including arms (including underarms), face, feet, neck, chest, hands, legs, buttocks and scalp (including hair). Cellulose includes water-insoluble polysaccharides consisting of chains of glucose molecules connected by β1-4 glycosidic bonds or linkages. Cellulose also includes water-soluble chemically or physically modified polysaccharides and polysaccharides that can be dispersed in water when used in combination with water-soluble cellulose. As used herein, starch refers to a water-soluble polysaccharide composed of glucose molecules connected by linkages including α1-4 and / or 1-6 glycosidic bonds or linkages. As used herein, gum refers to a thickener, which can be, for example, a polysaccharide produced by fermenting carbohydrates using Gram-negative bacteria (i.e., Xanthomonas campestris), a soluble fiber with a protein content generally in the range of 5% to 6% obtained from the endosperm of guar seeds, etc. Unsaturated zwitterionic surfactants refer to surfactants having at least one double bond (C 2+) in the hydrophobic (i.e., fatty) chain. n H 2nAs used herein, C18:1 and C18:2 refer to 18-carbon chains with 1 and 2 double bonds in the chain, respectively. Cleaning compositions refer to compositions suitable for use on surfaces, including hard surfaces such as tables, counters, appliances, windows, ceramic fixtures (such as toilets or sinks), cars and floors. Surfaces also include skin, and preferably, are skin.

[0031] Therefore, the cleaning composition of the present invention is suitable as a home care composition, shampoo, makeup removal product, facial wash or personal care and liquid body or hand wash. Preferably, the cleaning composition of the present invention is a shampoo, shower gel or hand wash that is ready for topical application and is wiped or washed off, and preferably washed off with water. The cleaning composition may optionally contain a medicinal or therapeutic agent, but is preferably a cleaning composition as a cleaning and / or beauty wash, which is a non-therapeutic wash to wash, for example, dirt, oil and / or bacteria that can cause coloration and / or odor. As described below, the cleaning composition of the present invention may optionally contain skin benefit ingredients added thereto, such as vitamins and / or their derivatives / analogs, resorcinols, retinoic acid precursors, colorants, moisturizers, sunscreens, mixtures thereof, etc. The skin benefit ingredients (or benefit agents) can be water-soluble or oil-soluble. If used, oil-soluble skin benefit agents typically account for 1.5% by weight of the cleaning composition, so that water-soluble skin benefit agents (when used) can account for up to 10% by weight of the cleaning composition. The cleaning composition typically has a pH of 5.25-7.75, preferably 5.8-7.5, and most preferably 6.2-7.4 (or 6.55-7.35). Unless otherwise stated, viscosities are obtained using a Discovery HR-2 rheometer, using a sandblasted plate with a 1000 micron gap, and for the first viscosity V A The first shear rate S A 4s -1 , and for the second viscosity V B The second shear rate S B 10s -1, both at 25°C and at 20 second intervals. Viscosity is reported in millipascal seconds (1 millipascal second = 1 centipoise (cps)). As used herein, stable means that the detergent composition has no phase separation, discoloration and odor generation after storage at 50°C for at least two (2) weeks, and preferably at 45°C for at least one (1) month, and more preferably at 45°C for 2 to 4 months. Easy to rinse means that it is easily washed off with water without leaving a sticky or tacky residual feeling as determined by trained panelists. Biodegradable as used herein means that organic substances such as resins, starches and cellulose are decomposed by microorganisms such as bacteria and fungi. "Substantially free" means less than 3.5% by weight of the detergent composition, preferably less than 2.5% by weight, more preferably less than 1.25% by weight, and most preferably less than 0.65% by weight. "Substantially free" means including 0.001% to less than 3.5% by weight of the composition, and 0.0% by weight (i.e., free or absent). As used herein, "mainly free of" means less than 1% by weight, preferably less than 0.35% by weight, and most preferably less than 0.25% by weight (or less than 0.15% by weight or less than 0.05% by weight). In embodiments of the present invention, "mainly free of" includes 0.001% by weight to 1.0% by weight and 0.0% by weight (i.e., free of or without) of the washing composition. The term "comprising" is intended to encompass the terms "consisting essentially of" and "consisting of". In order to avoid doubt, and for illustration, the composition of the present invention comprising a surfactant and a biodegradable thickener is intended to include compositions consisting essentially of and consisting of. Except in the operating comparative examples, or otherwise explicitly stated, all numbers in this specification indicating the amount or ratio of a material or reaction conditions and / or the physical properties and / or uses of a material should be understood to be modified by the word "about". Unless otherwise stated, all ranges defined herein are intended to include all ranges contained therein. DETAILED DESCRIPTION

[0032] Thickener is preferably a biodegradable thickener. Therefore, thickener is preferably composed of organic matter. As for the biodegradable thickener suitable for use, it includes starch and cellulose and / or gum, wherein thickener does not need to be synthetically manufactured and can be fully degraded or disintegrated in the environment. In one embodiment of the invention, at least 90 % by weight of biodegradable thickeners are starch and cellulose and / or gum. In another embodiment, at least 92 % by weight of biodegradable thickeners are starch and cellulose and / or gum. Even in another embodiment, at least 92 % by weight-100 % by weight of biodegradable thickeners are starch and cellulose and / or gum. Also in another embodiment, 90 % by weight-97 % by weight or 92 % by weight-96 % by weight or 100 % by weight of biodegradable thickeners are starch and cellulose and / or gum.

[0033] Typically, the detergent composition of the present invention comprises 1.0 wt% to 10.5 wt% thickener, preferably 3.5 wt% to 10 wt%, and most preferably 3.6 wt% to 9.0 wt% (or 3.65 wt% to 7 wt% or 3.7 wt% to 6.65 wt%) thickener. In another embodiment of the present invention, starch accounts for 58 wt% to 99 wt% or 65 wt% to 98.5 wt% or 70 wt% to 98.5 wt% (or 77 wt% to 98.5 wt% or 82 wt% to 98 wt%) of the total weight of starch and cellulose and / or gum in the biodegradable thickener. In one embodiment of the present invention, 100 wt% of the biodegradable thickener is starch and cellulose and / or gum, wherein cellulose accounts for 70 wt% to 99 wt% of the total weight of the thickener.

[0034] In a further embodiment, 100 wt% of the biodegradable thickener is starch and cellulose and / or gum, whereby it comprises 2.75 wt%-7.75 wt%, preferably 3.0 wt%-6.85 wt%, and most preferably 3.5 wt%-6.25 wt% (or 3.05 wt%-4.45 wt% or 3.1 wt%-3.75 wt%) of the detergent composition. In one embodiment of the invention, when both cellulose and gum are used in the detergent composition of the invention, 1-5 or 1-4 or 2-3 times more cellulose is used than gum.

[0035] Salts or electrolytes such as Na, Mg, Ca and / or ammonium chlorides comprise 0 wt%-2.5 wt%, preferably 0.1 wt%-1.35 wt%, and most preferably 0.5 wt%-1 wt% of the washing composition. In another embodiment, the washing composition comprises less than 0.5 wt% or less than 0.25 wt% or does not comprise (0.0 wt%) salts or electrolytes.

[0036] With regard to suitable biodegradable thickeners, starches include those that may be optionally chemically or physically modified by one or more art-recognized techniques such as oxidation, cross-linking reactions, gelatinization, esterification, etherification, amidation, and treatment using temperature variations. Distarch phosphate or compounds rich in distarch phosphate are typically included starches for use in the present invention. Starch hydrolysates are also suitable.

[0037] Such suitable starches may be derived or originate from any plant source, such as corn, peas, potatoes, oats, rice, cassava, sorghum, barley or wheat.

[0038] Hydroxypropyl starch and distarch phosphate are generally preferred for use, and are suitable for use alone or in admixture with other starches, including those available from commercial suppliers, such as Names (e.g., B980, B990 food starch modified grades) from Grain Processing Corp, StarDesign TM Name (for example, ) from Cargill Corporation and under the Agenaflo name (e.g., 9050, 9051) from Agrana, Names (e.g., CS3757) from Ingredion and (e.g., corn ST 005).

[0039] Other suitable starch phosphates, in particular hydroxypropyl starch phosphate, or compounds rich in starch phosphate are available from Avebe as Prejel TM These include VA-70-T AGGL (gelatinized hydroxypropyl tapioca distarch phosphate), TK1 (gelatinized tapioca distarch phosphate), and 200 (gelatinized acetyl tapioca distarch phosphate). These materials may also be used alone or in combination with other starches.

[0040] Suitable starches include starch and distarch phosphates, such as acetylated distarch phosphate, acetylated distarch adipate, sodium starch octenyl succinate, hydroxypropyl starch phosphate, hydroxypropyl distarch phosphate, and mixtures thereof. Illustrative examples of starches suitable for use alone or in a mixture include: StarDesign TM Care、StarDesign TM Care AV, StarDesign TM 05340, 06328, C☆HiForm TM 、C☆HiForm A TM 、HiForm Starch TM 、StarDesign TM , B980, B990, B992, B994, AF 1100, CS 3757, FARMAL MS 6822, FARMAL TM GMS2143, MS 6892, MS 6135, GMS2141, CS21A, CS21R, MS 6135, GS1653, CS 3757, GMS2141, CS 3001、FARMAL CS 3401、 CS 3400, CS 3650, WS 4400, GMS2141、Nativacare TM 8600、Nativacare TM 5600、Nativacare TM 9360、Nativacare TM 9230、Nativacare TM 9330, AGENAFLO 9050, AGENAFLO OS 9051, AGENAFLO TS, AGENAFLO 20.313, AGENAFLO 20.306, AGENAJEL 20.350, AGENAMALT 20.222, AGENANOVA 30.326, DEXTRIN 20.901, AGENABON 20.219, XL, 2143, 6892, STYLE, etc.

[0041] Hydroxypropyl distarch phosphate sold by Sinofi as E1440 Hydroxypropyl Starch Phosphate is also suitable.

[0042] As to celluloses suitable for use as biodegradable thickening agents, these include components generally classified as carboxymethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, or mixtures thereof.

[0043] Illustrative examples of such microcrystalline celluloses that may be used (alone or mixed with another cellulose) include COS5, COS6, COS8, CS 032XV, CS152HV, CS 302SV, 12. 14. 101. 102. 103. 105. 112. 200, 301, 302, 200, 200XLM, 50M, 90M, XLM, 50M, 90M, 90HD, 200LP, which is available from JRS Pharma GmbH & Co.

[0044] Other celluloses suitable for use (alone or mixed with other celluloses) include GP1412; 101. 102. 103. 112. 113. 301, 200, SMCC 50, SMCC 90, SMCC HD90, CL, DG, CE, HFE, NT-20, NTC-61, NT-50, NT-80, NT-100, NT-200, Cellulose gum BAK, Cellulose gum BEV, Cellulose gum MAS, Cellulose gum AMD, Cellulose gum NMD, Cellulose gum FZD, Methocel TM 240、Methocel TM E5, Methocel TM F4M、Methocel TM K4M、Methocel TM K15M、Methocel TM K15LV、MethocelTM F50、Methocel TM K100M、Methocel TM K200M、Methocel TM 40-0100, Methocel TM 40-0202 and Methocel TM F50 and available from Dupont.

[0045] Obtained from Ming Thai Chemical Co. 101. 102. 301, 302; obtained from Blanver, Farmoquímica 101. 102. 200; obtained from Ingredion CMC 2700F; obtained from Lubrizol R49, R50; obtained from CP Kelco Citrus fiber, Cellulosic liquids are also suitable. Even other celluloses that may be used (alone or mixed with other celluloses) include those available from Borregaard FM 02-V; available from CellulForce Cellulose NanoCrystals (CNC); available from Weidmann Fiber Technology Celova Microfibrillated Cellulose (MFC); available from Cargill FiberDesign TM Sensation, available from CPKelco Citrus fiber; available as CELLOSIZE from Dow Chemical TM QP-10000H EUR、CELLOSIZE TM QP-100MH、CELLOSIZE TM QP-300, CELLOSIZE TM QP-4400H、EUR CELLOSIZE TM QP-15000H、CELLOSIZE TMQP-30000H、CELLOSIZE TM QP-52000H、CELLOSIZE TM EP-09, Methocel TM F50、Methocel TM 40-0100, Methocel TM 40-0202, Methocel TM K100M、Methocel TM K200M; available from Ashland Polysurf TM 67CS, Natrosol TM Plus 330CS, Natrosol TM Plus 250HHR CS; methylcellulose PMK-40YS and PMK-60YS available from First International Inc.; carboxymethylcellulose (CMC), polyanionic cellulose (PAC), hydroxyethylcellulose (HEC), hydroxypropylmethylcellulose (HPMC), and methylhydroxyethylcellulose (MHEC / HEMC) available from Kingsun Chemicals Inc.; Hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), sodium carboxymethylcellulose (CMC), highly substituted hydroxypropyl cellulose (H-HPC), low substituted hydroxypropyl cellulose (L-HPC), ethylcellulose (EC), hydroxyethyl cellulose (HEC), microcrystalline cellulose (MCC), polyanionic cellulose (PAC), hydroxypropyl methylcellulose phthalate (HPMC-P) / (hydroxypropyl methylcellulose phthalate), hydroxypropyl methylcellulose acetate succinate (HPMCAS), cross-linked sodium carboxymethylcellulose, powdered cellulose, available from SIDLEY CHEMICAL CO., LTD.

[0046] Preferred celluloses (microcrystalline cellulose) for use in the present invention are those commercially available from Dupont and JRS Pharma G GmbH & Co.

[0047] Illustrative guar gums suitable for use in the present invention may contain both mannose and galactose units in a unit ratio of about 2.5: 1-1.75: 1, preferably 2.25: 1-1.85: 1, most preferably 2.1: 1-1.95: 1. The galactose groups are distributed along the mannose chain, and such gums may be nonionic, cationic or anionic.

[0048] As for the illustrative nonionic guar gum, it can be an unmodified nonionic guar gum. Generally, preferred unmodified and nonionic gums are sold under the trade names Vidogum GH 175 and 200, Vidogum GHK 175, Vidogum G and Vidocrem, commercially available from Unipektin. It can be obtained from DuPont Danisco under the trade name Meypro TM LBG Fleur M-175 is commercially available from Cargill under the trade name Viscogum TM Commercially available from Solvay under the trade name like S is commercially available from Ingredion under the trade name like Guar gums such as those commercially available as Guar Gum 3500 Powder and commercially available from Polygal AG under the trade name Polycos, such as Polycos N-75, are also suitable for use. Guar gums available from suppliers such as Ashland and under the trade name Supercol TM Nonionic guar gum obtained from the US is also within the scope of use in the present invention.

[0049] The modified nonionic guar gum can be used alone or (if desired) in combination with other gums. Such modified nonionic guar gums generally have C1-C8 hydroxyalkyl groups, preferably hydroxymethyl, hydroxyethyl and / or propyl groups.

[0050] Nonionic guar gums commonly used and modified with hydroxyalkyl groups are sold, for example, by Solvay under the trade names Jaguar HP 60, Jaguar HP 105 and Jaguar HP 120. Other choices include those sold by Ashland under the name N-Hance TM Like N-Hance TM HP40 and N-Hance TM HP40S, those sold under the name Polycos such as Polycos A-80, A-80HV BF, A-240BF, A-240HV BF, A-400HV BF by Polygal AG and those sold under the name CESMETIC and ESAFLOR such as CESMETIC 4W, ESAFLOR HM 22, ESAFLOR HDR by Rita Corp.

[0051] Suitable galactomannan gums typically have a cationic charge density of less than or equal to 1.65 meq. / g, more typically 0.1-1.2 meq. / g, as measured by art-recognized (eg, ASTM) techniques.

[0052] Cationic galactomannan gums that can be used in the cleaning compositions of the present invention are, for example, those containing tri(C 1-4 ) alkylammonium cationic groups. Typically, 3% to 25% of the total percentage of hydroxyl functional groups of these gums have trialkylammonium cationic groups. In one embodiment of the present invention, the cationic galactomannan gum used is a cationic galactomannan gum containing hydroxypropyltrimethylammonium groups, such as guar gum modified with 2,3-epoxypropyltrimethylammonium chloride.

[0053] Specific galactomannan gums suitable for optional use are described in U.S. Pat. Nos. 3,589,578 and 4,031,307, the disclosures of which are incorporated herein by reference. Such gums (i.e., guar hydroxypropyltrimonium chloride) are commercially available from Solvay under the name Such as Jaguar EXCEL, Jaguar C13S, Jaguar C15, Jaguar C17 and Jaguar C162, manufactured by Evonik Degussa under the name Amilan TM , and by Ashland under the name N-Hance TM Like N-Hance TM BF13, N-Hance TM CG13, N-Hance TM CG17, N-Hance TM CCG45, N-Hance TM C261N、N-Hance TM HPCG1000, N-Hance TM HPCG 1000, N-Hance TM 3000, N-Hance TM 3197、N-Hance TM 3215, commercially available from Polygal AG under the name Polycos such as Polycos CA-45, Polycos CA-750, Polycos CA-100RS, Polycos CA-1800, Polycos CA-3000, Polycos CA-3002, and from Rita Corp under the name CESMETIC and ESAFLOR such as CESMETIC BF7, ESAFLOR HC 56, ESAFLOR EC4 USA, ESAFLOR EC3, ESAFLOR EC 5, ESAFLOR BF7.

[0054] Suitable anionic guar gums include groups typically derived from carboxylic acid, sulfonic acid, sulfenic acid, phosphoric acid, phosphonic acid or pyruvic acid and salts thereof. Most preferably, the anionic group is a carboxylic acid group. Counterions typically include sodium, calcium or potassium.

[0055] When used, anionic guar gums are typically those classified as carboxymethyl guar derivatives (ie, carboxymethyl guar or carboxymethyl hydroxypropyl guar).

[0056] Another gum suitable for use in the detergent compositions of the present invention is locust bean gum or carob gum, for example recovered from the kernels of the carob tree (Ceratonia silique).

[0057] Locust bean gum is optionally used, for example from Cargill under the name Viscogum TM ; by Unipektin under the name Vidogum L and by DuPont Danisco under the name Modified locust bean gums useful herein include cationic locust bean gums sold, for example, by Toho Chemical under the names Catinal CLB, Catinal CTR-100 and Catinal CTR-200 (locust bean gum hydroxypropyltrimonium chloride).

[0058] Tara gums suitable for use in the detergent compositions of the present invention include, for example, those sold commercially under the name Vidogum SP by Unipektin.

[0059] In one embodiment of the present invention, the gums used include hydroxypropyltrimonium chloride guar gum, locust bean gum, konjac mannan gum, tragacanth gum, sodium alginate or propylene glycol alginate, kappa-carrageenan, iota-carrageenan or lambda-carrageenan, guar gum, hydroxypropyl guar gum, karaya gum, gum arabic (acacia gum), gellan gum, xanthan gum, succinoglycan or its acid or enzyme hydrolyzate, agar, pectin, mixtures thereof, and the like.

[0060] In a particularly preferred embodiment, the gum selected for use is from Solvay S. From Ingredion Guar gum 3500 powder, Viscogum commercially available from Cargill TM Guar gum and / or gellan gum (anionic polysaccharide produced by the bacterium Shingomonas elodea) commercially available from CP Kelco.

[0061] Preferred biodegradable thickeners generally have a viscosity of 0.18 to 0.92 g / ml, preferably 0.2 to 0.82 g / ml, and most preferably 0.22 to 0.72 g / ml (or 1000 kg / m 3 ), where the bulk density is the ratio of the mass of an untapped powder sample to its volume (including the contribution of the inter-particle void volume) (i.e., dependent on both the density of the powder particles and the spatial arrangement of the particles in the powder bed). Such thickeners typically have a cloud point of 60-70° C. and a weight average molecular weight of 55,000-1.5 million Daltons, preferably 80,000-1.25 million Daltons, and most preferably 100,000-1 million Daltons.

[0062] With respect to surfactants which may be used, this is limited to the extent suitable for use in compositions intended for topical application to a surface, preferably the skin. Additionally, the cleaning compositions of the present invention may include soaps and sulfates but be substantially free of them.

[0063] Anionic surfactants suitable for use in the detergent compositions of the present invention include 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 may also be an alkyl sulfate (e.g., C 12 -C 18 Alkyl sulfates) or alkyl ether sulfates (including alkyl glyceryl ether sulfates). Alkyl ether sulfates also include those having the formula:

[0064] RO(CH2CH2O) n SO3M

[0065] wherein R is an alkyl or alkenyl group having 8 to 18 carbons, preferably 12 to 18 carbons, n has an average value of at least 1.0, preferably less than 5, and most preferably 1 to 4, and M is a solubilizing cation such as sodium, potassium, ammonium or substituted ammonium.

[0066] Anionic surfactants may also include alkyl sulfosuccinates (including monoalkyl and dialkyl, such as C8-C 22 sulfosuccinates); acyltaurates (usually methyl taurate or sodium lauroyl methyl taurate), acyl sarcosinates, sulfoacetates, C8-C 22 Alkyl phosphates and phosphonates, alkyl phosphate esters and alkoxyalkyl phosphate esters, acyl lactylates, C8-C 22Monoalkyl succinates and maleates, alkyl glucosides and acyl isethionates, etc.

[0067] The sulfosuccinate may be a monoalkyl sulfosuccinate having the formula:

[0068] R 1 O2CCH2CH(SO3M)CO2M;

[0069] And the amide-MEA sulfosuccinate of the formula:

[0070] R 1 CONHCH2CH2O2CCH2CH(SO3M)CO2M, where R 1 Range: C8-C 22 alkyl.

[0071] Sarcosinate is generally represented by the following formula:

[0072] R 2 CON(CH3)CH2CO2M, where R 2 Range: C8-C 20 alkyl.

[0073] Taurate is generally represented by the following formula:

[0074] R 3 CONR 4 CH2CH2SO3M

[0075] Where R 3 For C8-C 20 Alkyl, R 4 It is a C1-C4 alkyl group.

[0076] M is a solubilizing cation as described above. Isethionates that can be used include C8-C 18 Acyl isethionates (including those with substituted head groups such as C 1-4 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. Typically at least 75% of the mixed fatty acids have from 12 to 18 carbon atoms and up to 25% have from 6 to 10 carbon atoms.

[0077] Suitable acyl isethionates (i.e., anionic surfactants) may be alkoxylated isethionates, such as described in Ilardi et al., U.S. Pat. No. 5,393,466, issued Feb. 28, 1995, entitled "Fatty Acid Esters of Polyalkoxylated isethonic acid," which is incorporated herein by reference. The compounds have the following general formula:

[0078] R 5 CO(O)-C(X)HC(Y)H-(OCH2-CH2) m -SO3M

[0079] Where R 5 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.

[0080] In one embodiment of the present invention, suitable and preferably used anionic surfactants are sodium lauroyl isethionate, sodium cocoyl isethionate, sodium methyl lauroyl taurate, sodium methyl cocoyl taurate or mixtures thereof. Such anionic surfactants are commercially available from suppliers such as Galaxy Surfactants, Clariant, Sino Lion and Innospec.

[0081] The detergent composition may also contain glutamate and glycinate as anionic surfactants, alone or in combination with other anionic surfactants, especially taurates and / or isethionates. If used, illustrative examples of suitable surfactants include C6 to C 18 Glycinates and glutamates, including sodium lauroyl glycinate, sodium cocoyl glycinate, sodium lauroyl glutamate, sodium cocoyl glutamate or mixtures thereof.

[0082] Suitable amphoteric surfactants for use in the present invention (which may be zwitterionic depending on the pH) include sodium acylamidoacetate, sodium acylamidopropionate, disodium acylamidodiacetate, and disodium acylamidodipropionate, wherein the acyl group (i.e., alkanoyl) may include C7-C 18 Alkyl moiety. Illustrative examples of suitable amphoteric surfactants include sodium lauroamphoacetate, sodium cocoamphoacetate, sodium lauroamphoacetate, sodium cocoamphoacetate or mixtures thereof.

[0083] As for the zwitterionic surfactants that can be used for the detergent compositions of the present invention, such surfactants contain at least one acid group. Such acid groups can be carboxylic acid or sulfonic acid groups. They usually contain quaternary nitrogen, and therefore can be quaternary amino acids. They usually should contain alkyl and alkenyl or alkenyl groups with 7 to 18 carbon atoms, and usually conform to the following overall structural formula:

[0084] R 6 -[-C(O)-NH(CH2) q -] r -N + -(R 7 -)(R 8 )AB,

[0085] Where R 6 is an alkyl or alkenyl group of 6 to 18 carbon atoms; R 7 and R 8 Each is independently an alkyl group, a hydroxyalkyl group or a 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 optionally substituted by a hydroxy group, and B is -CO2- or -SO3-.

[0086] Suitable zwitterionic surfactants useful herein and within the above general formula include simple betaines of the formula:

[0087] R 6 -N + -(R 7 )(R 8 )CH2CO2 -

[0088] And the amido betaine of the following formula:

[0089] R 6 -CONH(CH2) t -N + -(R 7 )(R 8 )CH2CO2 - , where t is 2 or 3.

[0090] In both formulas, R 6 , R 7 and R 8 As defined previously. In particular, R 6 Can include C8, C 10 , C 12 and C 14 A mixture of alkyl groups. 7 and R 8 Preferably it is methyl. 6 Preferably including C 12and C 14 A mixture of alkenyl groups, preferably derived from triglycerides. Triglycerides recovered from asparagus, corn, rapeseed, etc. are suitable for use and are sustainable.

[0091] A further possibility is that the zwitterionic surfactant comprises a sulfobetaine of the formula:

[0092] R 6 -N + -(R 7 )(R 8 )(CH2)3SO3 -

[0093] or

[0094] R 6 -CONH(CH2) u -N + -(R 7 )(R 8 )(CH2)3SO3 -

[0095] Where u is 2 or 3, or where -(CH2)3SO3 - -CH2C(OH)(H)CH2SO3 - Instead, use their variants.

[0096] In these formulas, R 6 , R 7 and R 8 As defined previously.

[0097] Illustrative examples of suitable zwitterionic surfactants include betaines, such as oleamidopropyl betaine, linoleamidopropyl betaine, cocodimethyl carboxymethyl betaine, cocamidopropyl betaine, and lauroamidopropyl betaine. Suitable additional zwitterionic surfactants include cocamidopropyl hydroxysulfonate. Such surfactants are commercially available from suppliers such as Stepan Company, and it is within the scope of the present invention to employ mixtures of the foregoing surfactants. In a preferred embodiment, the zwitterionic surfactants used in the detergent compositions of the present invention are oleamidopropyl betaine and linoleamidopropyl betaine or a mixture of cocamidopropyl betaine, oleamidopropyl betaine, and linoleamidopropyl betaine.

[0098] Typically, the total surfactant used in the detergent composition of the present invention is 2.5-15% by weight of the composition, preferably 2.5-13% by weight, most preferably 2.5-12% by weight (or 3.5-12% by weight). Typically, the total anionic surfactant accounts for 0.75-8% by weight of the composition, preferably 2-7% by weight, most preferably 2.5-6% by weight (or 2.55-5.85% by weight). Zwitterionic surfactants account for 1-9% by weight of the composition, preferably 2.25-8% by weight, most preferably 2.4-7.5% by weight (or 2.5-6.15% by weight).

[0099] Nonionic surfactants can be used in the detergent composition of the present invention. When used, nonionic surfactants are used at a level as low as 0.01 % by weight, 0.5 % by weight, 1 % by weight, 1.5 % by weight or 2 % by weight of the detergent composition. In one embodiment of the invention, when using nonionic surfactants, they account for 0.01-0.485 % by weight of the detergent composition. Operable nonionic surfactants particularly include the reaction product of a compound (for example aliphatic alcohol, acid, amide or alkylphenol) with a hydrophobic group and a reactive hydrogen atom and an oxyalkylene oxide (particularly independent oxyethane or the oxyethane 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 condensation of ethylene oxide with the reaction products of propylene oxide and ethylenediamine. Other nonionic surfactants include long chain tertiary amine oxides, long chain tertiary phosphine oxides, dialkyl sulfoxides, and the like. Cocamide monoethanolamine (MEA) is a generally preferred optional nonionic surfactant. When used, MEA is used at a level of 0.2 to 0.46% by weight of the detergent composition.

[0100] In one embodiment of the present invention, the optional nonionic surfactant may include a fatty acid / alcohol ethoxylate having the following structure: a) HOCH2(CH2) s (CH2CH2O) v H or b) HOOC(CH2) c (CH2CH2O) d H; wherein s and v are each independently an integer up to 18; and 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 choices of nonionic surfactants include those having the formula: HOOC(CH2) i -CH=CH-(CH2) k (CH2CH2O) zH, 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] Nonionic surfactants can also include sugar amides, such as polysaccharide amides. Specifically, the surfactant can be one of the lactose amides described in U.S. Patent No. 5,389,279, titled "Compositions Comprising Nonionic Glycolipid Surfactants" by Au et al., issued February 14, 1995, which is incorporated herein by reference; or it can be one of the sugar amides described in U.S. Patent No. 5,009,814, titled "Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems" by Kelkenberg, issued April 23, 1991, which is incorporated herein by reference.

[0102] In one embodiment of the present invention, cationic surfactants may optionally be used in the cleaning compositions herein.

[0103] One class of optional cationic surfactants includes heterocyclic ammonium salts such as cetyl or stearyl pyridinium chloride, alkylamidoethyl pyrrylinodium methylsulfate, and lapidium chloride.

[0104] Tetraalkylammonium salts are another class of useful cationic surfactants suitable for optional use. Examples include cetyl or stearyl trimethyl ammonium chloride or bromide; hydrogenated palm or tallow trimethyl ammonium halide; behenyl trimethyl ammonium halide or methyl ammonium sulfate; decyl isononyl dimethyl ammonium halide; ditallow (or distearyl) dimethyl ammonium halide, and behenyl dimethyl ammonium chloride.

[0105] 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 dimethyl lactylate.

[0106] Even other useful cationic surfactants suitable for optional use include quaternized hydrolysates of silk, wheat and keratin proteins, and it is within the scope of the present invention to use mixtures of the foregoing cationic surfactants.

[0107] If used, the cationic surfactant accounts for no more than 1.0 weight % of the detergent composition. If present, it usually accounts for 0.01 weight % to 0.7 weight % of the detergent composition, and more usually 0.1 weight % to 0.5 weight %, including all ranges contained therein. In one embodiment of the invention, use a cationic surfactant less than 0.2 weight %. In another embodiment, use 0.0 weight % of the cationic surfactant.

[0108] In one embodiment of the present invention, the washing composition comprises less than 0.18% of polymeric quaternary ammonium compounds (including salts thereof). In another embodiment, the washing composition comprises less than 0.1% by weight of polymeric quaternary ammonium compounds. In yet another embodiment, the washing composition comprises less than 0.01% by weight of polymeric quaternary ammonium compounds. In even another embodiment, the washing composition contains no polymeric quaternary ammonium compounds (i.e., 0.0% by weight).

[0109] Although it is undesirable, fatty acid soaps such as sodium stearate can be included in the composition, but the cleaning composition is preferably substantially free of soap. In one embodiment of the present invention, soap accounts for less than 1.0% by weight of the cleaning composition, preferably less than 0.5% by weight (or 0.3% by weight), and most preferably 0.0% by weight of the cleaning composition of the present invention.

[0110] The cleaning compositions of the present invention are again defined herein as being substantially free of sulfates and / or synthetic thickeners such as ammonium acryloyldimethyltaurate-vinyl pyrrolidone copolymer, alkyl acrylate crosspolymers, and the like.

[0111] Water typically comprises from 59 to 95 wt %, preferably from 65 to 90 wt % and most preferably from 65 to 80 wt % of the cleaning composition.

[0112] Optionally, a pH adjuster suitable for adjusting / buffering the pH may be included. 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 that produces the desired final pH. The pH value can be assessed using commercial instruments, such as those available from Thermo Fisher Scientific. Or a pH meter commercially available from VWR Scientific. Such pH values ​​of the cleaning compositions are as stated typically in the range of 5.25-7.75, preferably 5.8-7.5, most preferably 6.2-7.4 (or 6.55-7.35).

[0113] The polyol that is applicable to cleaning compositions is limited to the degree that it can use in the cleaning compositions for topical application.Illustrative and non-limiting examples that are applicable to polyol of the present invention include sorbitol, glycerine, mannitol, xylitol, maltitol or its mixture.In one embodiment of the invention, based on the gross weight of the polyol used in the cleaning compositions, the polyol used is generally the glycerine of at least 50 weight %.In another embodiment of the invention, the polyol used is all glycerine (100 weight %).Polyol accounts for the 0.0-25 weight % of cleaning compositions generally, and preferably the 0.5-9 weight % of cleaning compositions, and most preferably the 0.75-5.5 weight % (or 0.95-3.65 weight %) of cleaning compositions.

[0114] Although not required, it is also within the scope of the present invention to optionally use additional gelling agents or thickening agents such as ammonium acryloyldimethyltaurate-vinyl pyrrolidone copolymers, alkyl acrylate crosslinked polymers, and the like in addition to the present invention's mixtures of thickening agents with starches, celluloses, and / or gums. If used, acrylates include acrylic acid crosslinked with allyl sucrose or allyl pentaerythritol acrylic acid and C 60 crosslinked with allyl pentaerythritol. 10 -C 30 These acrylates are and Other suitable acrylates include those formed as copolymers of an ester of acrylic acid and ethoxylated palmityl alcohol with about 25 moles of ethylene oxide and one or more monomers of acrylic acid, methacrylic acid or one of their simple esters. These acrylates are sold, for example, as (i.e., W200, W2000) and are commercially available from suppliers such as 3VSigma USA. As described, the detergent composition is substantially free of such optional thickeners and comprises less than 1 wt % of the detergent composition. Furthermore, even more preferably, no (0.0 wt %) thickener is used in the detergent composition other than starch, cellulose and / or gum.

[0115] The viscosity of the detergent composition (at 4s -1 The molecular weight (measured at 4000 rpm for 20 seconds) is typically 40,000 cps or less, and preferably 700 to 15,000 cps, and most preferably 2000 to 13,500 cps.

[0116] Optional skin benefit agents are suitable for use in cleansing compositions only to the extent that they are capable of topical application and are suitably stable in the cleansing composition at the desired pH.

[0117] Illustrative examples of benefit agents suitable for inclusion in the water portion of the detergent composition are acids, such as amino acids, for example arginine, valine or histidine. Suitable additional water-soluble benefit agents include vitamin B2, niacinamide (vitamin B3), vitamin B5 (pantothenic acid), vitamin B6, vitamin C, mixtures thereof, etc. Water-soluble derivatives of such 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 benefit 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 such as ensolizole may also be used. When present in the cleaning composition, the total amount of optional water-soluble benefit agents (including mixtures) may range from 0.0 wt % to 10 wt %, preferably from 0.001 wt % to 8 wt %, and most preferably from 0.01 wt % to 6 wt % (or from 0.001 wt % to 2 wt % or from 0.001 wt % to 1 wt %) of the cleaning composition.

[0118] It is also within the scope of the present invention to optionally include an oil-soluble benefit agent. Such oil-soluble active substances or benefit agents are soluble in the surfactant used. The only limitation on such oil-soluble benefit agents is that they are suitable for providing benefits when applied topically.

[0119] Illustrative examples of the types of oil-soluble benefit agents that may optionally be used in the 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.

[0120] Other optional oil-soluble benefit agents suitable for use include resorcinols, such as 4-hexylresorcinol, 4-phenylethylresorcinol, 4-cyclopentylresorcinol, 4-cyclohexylresorcinol, 4-isopropylresorcinol, thiamidol (isobutylamidothiazolylresorcinol) 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, mixtures thereof, and the like. 5-substituted resorcinols and their synthesis are described in commonly assigned U.S. Published Patent Application No. 2016 / 0000669A1.

[0121] Even other oil-soluble actives that are suitable include omega-3 fatty acids, omega-6 fatty acids, climbazole, farnesol, ursolic acid, myristic acid, geranylgeraniol, oleyl betaine, cocoyl hydroxyethyl imidazoline, hexanoyl sphingosine, 12-hydroxystearic acid, petroselinic acid, conjugated linoleic acid, terpineol, thymol, mixtures thereof, and the like.

[0122] When optional oil-soluble active materials or benefit agents are used in the composition, such active materials generally constitute 0.0-1.5% by weight of the cleaning composition, preferably 0.001-0.65% by weight, and most preferably 0.05-0.35% by weight. In another embodiment, the oil-soluble benefit agent constitutes 0.1-0.5% by weight of the total weight of the cleaning composition.

[0123] In one embodiment of the invention, the optional oil-soluble benefit agent used is a retinoic acid precursor. In one embodiment of the invention, the retinoic acid precursor is retinol, retinal, retinyl propionate, retinyl palmitate, retinyl acetate or a mixture thereof. Retinyl propionate, retinyl palmitate and a mixture thereof are generally preferred. In another embodiment, 0.01-1% by weight, or 0.01-0.65% by weight of 12-hydroxystearic acid is used in the cleaning composition of the present invention.

[0124] Other optional additives suitable for use include zinc pyrithione, hydroxypyrazone and mixtures thereof. When used, they are generally used at 0.001% to 1.5%, preferably 0.01% to 1% by weight of the cleaning composition.

[0125] Conventional preservatives may desirably be incorporated into the cleaning composition to prevent the growth of potentially harmful microorganisms. Cosmetic chemists are familiar with appropriate 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, hydroxyacetophenone, ethylhexylglycerol, hexylene glycol, methylparaben, propylparaben, imidazolidinyl urea, sodium dehydroacetate, dimethyl-dimethyl (DMDM) hydantoin, sodium benzoate, benzyl alcohol and mixtures thereof. Other suitable preservatives include sodium dehydroacetate, chlorphenesin, decanediol, N-capryloyl glycine, N-undecylenoyl glycine and mixtures thereof. The use of the composition and possible incompatibility between the preservative and other ingredients in the composition should be considered to select the preservative. The preservative is preferably used in an amount ranging from 0.01% by weight to 2.0% by weight of the total weight of the cleaning composition. Preservative systems comprising 0.1 to 1.0% of 1,2-octanediol, based on the total weight of the cleaning composition, are also suitable. Preservative systems that are substantially free of parabens and hydantoins are also preferred. Sodium benzoate is generally the most preferred preservative, and it is generally used at 0.2% to 1.2% by weight of the cleaning composition.

[0126] Fragrances, fixatives, chelating agents (such as EDTA), sunscreens (such as titanium dioxide and plant-derived liquid dispersions such as Solvay OPR 2), inorganic substances, dyes, pigments and exfoliants can be optionally included in the detergent composition. Each of these substances can be in the range of about 0.03% by weight to about 5% by weight of the detergent composition weight, preferably 0.1% by weight to 3% by weight, and most preferably 0.1% by weight to 2% by weight. In the case of using an exfoliant, those selected should have a sufficiently small particle size so that it does not hinder the performance of any packaging for distributing the composition of the present invention. Fragrances usually account for 0.0-1.5% by weight of the detergent composition, preferably 0.2-1% by weight.

[0127] Conventional emulsifiers having an HLB greater than 8 may optionally be used. Illustrative examples include Tween 40, 60, 80, polysorbate 20 and mixtures thereof. When used in a water continuous system, such emulsifiers comprise 0.03 wt % to 1.5 wt % of the cleaning composition.

[0128] With regard to silicones such as dimethylsiloxane and the like, the cleaning composition typically contains less than 1.0 wt. % silicone, more preferably less than 0.5 wt. % silicone, and most preferably contains no silicone. In a particularly preferred embodiment, the cleaning composition of the present invention is free of hydantoins, parabens, sulfates and silicones, especially cyclic silicones such as decamethylcyclopentasiloxane.

[0129] The cleaning compositions of the present invention are preferably liquid cleaning compositions which are suitably in the isotropic or lamellar phase.

[0130] When lamellar, the compositions of the present invention employ from 0.1 wt% to 20 wt%, preferably from 1 wt% to 10 wt%, and most preferably from 2 wt% to 5 wt% of a lamellar structurant (based on the total weight of the liquid detergent composition) which acts to form a lamellar phase in the composition.

[0131] Examples of fatty acids (or ester derivatives, or fatty alcohols, or trihydroxystearin) that can be used as structurants are C8-C 22 Fatty acids such as caprylic acid, lauric acid, myristic acid, oleic acid, isostearic acid, linoleic acid, linolenic acid, ricinoleic acid, elaidic acid, arachidonic acid, myristoleic acid and palmitoleic acid, mixtures thereof, etc. Ester derivatives include propylene glycol isostearate, propylene glycol oleate, glyceryl isostearate, glyceryl oleate and polyglyceryl diisostearate, etc. The structurant is preferably a fatty acid. More preferably, the structurant is selected from caprylic acid, lauric acid, myristic acid or mixtures thereof.

[0132] When preparing the detergent compositions of the present invention, the required ingredients may be mixed using conventional equipment under moderate shear and ambient conditions wherein the temperature may range from 30 to 85°C, whereby shearing is continued until a homogenous product is recovered.

[0133] The packaging of the cleaning composition is generally not limited, as long as the composition can be distributed. In one embodiment of the present invention, the cleaning composition is sold in a sachet, bottle, jar, tube or can. The packaging preferably allows unlimited refilling to consistently reduce plastic waste in the environment, and most preferably has at least 50% by weight of post-consumer resin. The cleaning composition of the present invention can be sold in a concentrated form, whereby the consumer can be instructed to add water to produce a ready-to-use product, and attempts to reduce weight and over-reliance on virgin plastics when transported.

[0134] The examples are provided to facilitate the understanding of the present invention. They are not intended to limit the scope of the claims.

[0135] Example

[0136] All samples in the examples were prepared by mixing the ingredients under moderate shear. The temperature varied between about 60°C and 78°C, and the pressure during mixing was ambient pressure. The starch, cellulose, and gum used in the samples were as determined in the following examples: The starch used was StarDesign from Cargill TM Care, the cellulose used was purchased from JRSPharma GmbH & Co. COS6, and the gum used is guar gum from Solvay S. From Ingredion Guar Gum 3500 Powder, Carrageenan from CP Kelco CG-131, Gellan Gum from CP Kelco CG-HA.

[0137] A base detergent composition was prepared with the ingredients identified wherein starch, cellulose and gum were added to the base composition in the amounts described in the sample of Example II.

[0138] Example I.

[0139] Table I

[0140] Detergent composition base

[0141] Element Washing matrix 1 (wt%) Washing matrix 2 (wt%) Sodium Methyl Lauroyl Taurate 2.1 Sodium Lauroyl Glycinate 3.24 Sodium Lauroyl Isethionate 2.23 2.1 Zwitterions / Betaine* 3.04 6.5 Cocamide MEA Lauric acid 0.92 0.5 Stearic acid 0.31 0.31 glycerin 0.88 1.0 12-Hydroxystearic acid 0.05 Glyceryl Monostearate 0.05 preservative 0.85 0.85 Sunscreen 1.0 1.0 NaOH 0.05 0.18 pH Adjusters To target pH To target pH Biodegradable thickener As in Example 2 As in Example 2 Fragrance 1.0 1.0 Water and trace ingredients margin margin

[0142] pH of the detergent composition, 6.8 to 7.2

[0143] Table II

[0144] * Carbon chain length distribution of zwitterionic surfactants: Weight % of the hydrophobic part of the zwitterionic surfactant (betaine)

[0145]

[0146] Max. - The maximum amount of the hydrophobic part of the zwitterionic surfactant based on the total weight of the hydrophobic part, and greater than 0.0%

[0147] Example II.

[0148] The biodegradable thickeners identified in Table III are used in combination with the cleaning compositions identified in Example I, Cleaning Base 2.

[0149] Table III

[0150]

[0151] The cleaning compositions were stored at elevated temperatures not exceeding 50°C. In less than one week, compositions not prepared according to the present invention (i.e., not containing the unsaturated zwitterionic surfactant described herein) changed color and separated and were not usable cleaning compositions. In contrast, the cleaning compositions prepared according to the present invention were stable, did not change color, and retained viscosity even after storage at 45°C for 1 month. Furthermore, the skilled panelists concluded that the compositions prepared according to the present invention provided the desired look and feel and washed off well upon use.

[0152] After washing their hands and forearms with compositions prepared according to the present invention, all trained panelists concluded that the cleaning compositions rinsed off easily, left a film-free feel, and lathered well. Furthermore, the panelists surprisingly concluded that the compositions prepared according to the present invention performed similarly to those prepared with conventional polymeric synthetic thickeners.

[0153] Example III

[0154] The biodegradable thickeners identified in Table IV were used in combination with a cleaning composition similar to those identified in Example I, except that the surfactant system used comprised sodium lauroyl isethionate, sodium methyl lauryl taurate, and a zwitterionic surfactant, as determined in 2, 2, and 7 weight percent, respectively. The saturated betaine was cocamidopropyl betaine, i.e., C 12 Saturated.

[0155] Table IV

[0156]

[0157] The cleaning compositions were stored at elevated temperatures not exceeding 50°C. In less than a week, compositions not prepared according to the present invention (i.e., not comprising the unsaturated zwitterionic surfactant described herein) discolored and separated and were not useful cleaning compositions. In contrast, the cleaning compositions prepared according to the present invention were stable, did not discolor, and retained viscosity even after storage at 45°C for 1 month.

[0158] After washing their hands and forearms with compositions prepared according to the present invention, all trained panelists concluded that the cleaning compositions rinsed off easily, left a film-free feel, and lathered well. Furthermore, the panelists surprisingly concluded that the compositions prepared according to the present invention performed similarly to those prepared with conventional polymeric synthetic thickeners.

[0159] Example IV

[0160] The biodegradable thickeners identified in Table V are used in combination with the cleaning compositions identified in Example I, Cleaning Base I.

[0161] Table V

[0162]

[0163] The cleaning compositions were stored at elevated temperatures not exceeding 50°C. In less than a week, compositions not prepared according to the present invention (i.e., not comprising the unsaturated zwitterionic surfactant described herein) discolored and separated and were not useful cleaning compositions. In contrast, the cleaning compositions prepared according to the present invention were stable, did not discolor, and retained viscosity even after storage at 45°C for 1 month.

[0164] After washing hands and forearms with compositions prepared according to the present invention, all trained panelists concluded that the cleaning compositions rinsed off easily, left a film-free feel, and lathered well. Furthermore, the panelists surprisingly concluded that the compositions prepared according to the present invention performed similarly to those prepared with conventional polymeric synthetic thickeners.

[0165] Example IV

[0166] The biodegradable thickeners identified in Table VI were used in combination with cleaning compositions similar to those identified in Example I, except that the surfactant system used was consistent with Cleaning Composition 1 and only unsaturated betaines were used as zwitterionic surfactants.

[0167] Table VI

[0168]

[0169] The cleaning compositions were stored at elevated temperatures not exceeding 50°C. In less than a week, compositions not prepared according to the present invention (i.e., not comprising the unsaturated zwitterionic surfactant described herein) discolored and separated and were not useful cleaning compositions. In contrast, the cleaning compositions prepared according to the present invention were stable, did not discolor, and retained viscosity even after storage at 45°C for 1 month.

[0170] After washing their hands and forearms with compositions prepared according to the present invention, all trained panelists concluded that the cleaning compositions rinsed off easily, left a film-free feel, and lathered well. Furthermore, the panelists surprisingly concluded that the compositions prepared according to the present invention performed similarly to those prepared with conventional polymeric synthetic thickeners.

Claims

1. A cleaning composition comprising: a) at least one anionic surfactant, wherein the anionic surfactant comprises glutamate, glycinate, taurate, isethionate or a mixture thereof; b) unsaturated zwitterionic surfactants; c) 0 to 2 wt % of a nonionic surfactant; and d) a thickener having starch and at least one of cellulose and gum, wherein the unsaturated zwitterionic surfactant comprises a hydrophobic tail comprising 2.5 to 20 wt % of C18:1, and 0.45 to 4.5 wt % of C18:2, and 5 to 22 wt % of total C8 and C 10 Carbon chain.

2. The cleaning composition of claim 1, wherein the unsaturated zwitterionic surfactant comprises an unsaturated betaine, a sultaine or both.

3. The cleaning composition according to claim 2, wherein the C8 and C 10 The hydrophobic tails are present in a weight ratio of 3:7 to 7:

3.

4. A cleaning composition according to any one of the preceding claims, wherein the thickener consists of an organic substance.

5. The cleaning composition according to claim 4, wherein the thickener is decomposable by microorganisms.

6. A cleaning composition according to any one of the preceding claims, wherein the unsaturated zwitterionic surfactant has 3.5 to 15 wt% C18:1, and 0.75 to 4 wt% C18:2, and 5 to 22 wt%, and 6.5 to 20 wt% total C8 and C18:1, based on the total weight of the hydrophobic tail on the zwitterionic surfactant. 10 Carbon chain.

7. A washing composition according to any one of the preceding claims, wherein the C8 and C 10 The hydrophobic tails are present in a weight ratio of 4:6 to 6:

4.

8. A cleaning composition according to any one of the preceding claims, wherein the composition is substantially free of sulphates and soap.

9. A cleaning composition according to any preceding claim, wherein the composition comprises less than 0.35 wt% synthetic thickener.

10. The cleaning composition according to claim 9, wherein the synthetic thickener is ammonium acryloyldimethyltaurate-vinyl pyrrolidone copolymer and / or alkyl acrylate crosspolymer.

11. A washing composition according to any one of the preceding claims, wherein the composition is isotropic or lamellar.

12. A cleaning composition according to any one of the preceding claims, wherein the composition further comprises peptidomide, 12-hydroxystearic acid, niacinamide, terpineol, thymol or a mixture thereof.

13. A washing composition according to any preceding claim, wherein the composition has a pH of from 5.25 to 7.

75.

14. A cleaning composition according to any preceding claim, wherein the anionic surfactant is taurate, isethionate, glycinate, glutamate or a mixture thereof.

15. A cleaning composition according to any preceding claim, wherein the composition is substantially free of hydantoins.

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