EP4642427A1 - Composition de lavage liquide isotrope translucide ou transparente - Google Patents

Composition de lavage liquide isotrope translucide ou transparente

Info

Publication number
EP4642427A1
EP4642427A1 EP23836801.3A EP23836801A EP4642427A1 EP 4642427 A1 EP4642427 A1 EP 4642427A1 EP 23836801 A EP23836801 A EP 23836801A EP 4642427 A1 EP4642427 A1 EP 4642427A1
Authority
EP
European Patent Office
Prior art keywords
wash composition
weight
isotropic
wash
composition according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23836801.3A
Other languages
German (de)
English (en)
Inventor
Ashmiu Omarr Maadakin KOROMA
Kimberly DAY
Tirucherai Varahan Vasudevan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever Global IP Ltd
Unilever IP Holdings BV
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever Global IP Ltd, Unilever IP Holdings BV filed Critical Unilever Global IP Ltd
Publication of EP4642427A1 publication Critical patent/EP4642427A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
    • A61K8/442—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof substituted by amido group(s)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • A61K8/466—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfonic acid derivatives; Salts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/86—Polyethers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/26—Optical properties
    • A61K2800/262—Transparent; Translucent

Definitions

  • the present invention is directed to a mild and stable translucent or transparent isotropic liquid wash composition.
  • the liquid wash composition comprises anionic and zwitterionic surfactants whereby the anionic surfactant is at least 75% by weight of a taurate, based on total weight of the anionic surfactant.
  • the liquid wash composition has a pH of 5.25 or less, is suitable to deliver anti-microbial agents, including anti-acne benefits, and can be made substantially free of at least one of sulfates, soaps, epoxides (like 1 ,4-dioxane), ethanol, halogenated antimicrobial actives, cyclosilicones, parabens, hydantoins and/or isothiazolinones.
  • Cleansing compositions including bars and liquids, are known to provide benefits to consumers using them, and particularly, antimicrobial benefits.
  • Microbes like bacterium, are prevalent in our bodies and on the surface of our skin. Many consumers are annoyed to hear that some bacterium and other microbes are essential for animal, including human, survival.
  • wash compositions can aid in minimizing the impact of excess sebum
  • traditional compositions often comprise harsh surfactants that strip too much sebum off the skin (making the skin dry and itchy) or mild surfactants that inefficiently clean.
  • traditional compositions are overly thin or overly thick and opaque, resulting in poor cleansing and/or compositions that leave a residue or film that is difficult to wash off, and viewed negatively by consumers.
  • mild and stable wash compositions that are gentle on skin, cleanse well and that have consumer desirable characteristics such as composition consistency, transparency or translucency, and the ability to rinse off easily and deliver benefit agents like anti-microbial agents.
  • the present invention is directed to a mild and stable translucent or transparent isotropic liquid wash composition.
  • the liquid wash composition comprises anionic and zwitterionic surfactants whereby the anionic surfactant is at least 75% by weight of a taurate based on total weight of the anionic surfactant.
  • the liquid wash composition has a pH of 5.25 or less, is suitable to deliver anti-microbial agents, like anti-acne agents, and can be made substantially free of at least one of sulfates, soaps, epoxides (like 1,4-dioxane), ethanol, halogenated antimicrobial actives, parabens, hydantoins and/or isothiazolinones.
  • Such a composition is unexpectedly mild, translucent or transparent and able to maintain excellent viscosity characteristics, even when formulated at a pH of 5.25 or less.
  • the present invention is directed to an isotropic wash composition
  • an anionic surfactant comprising at least 75%, and preferably, from 80 to 100%, and most preferably, from 90 to 100% (or 95 to 100% or 100%) by weight of a taurate; b) a zwitterionic surfactant comprising a betaine, a sultaine or both; and c) a hydrophobically modified nonionic thickener comprising from 1 to 10, and preferably, 1 to 8, and most preferably, 2 to 6 ethoxylate bridging groups represented as X- (CH 2 CH 2 O)V- where v is an integer from 2 to 300, and preferably, from 2 to 275, and most preferably, from 2 to 250 (or 125 to 250) in total for all ethoxylate bridging groups present and X is -OH, a Ci4-C 2 o, or preferably, a C14-C18 , or most preferably, a Cie-C saturated
  • the present invention is directed to an isotropic wash composition
  • an anionic surfactant comprising at least 75%, and preferably, from 80 to 100%, and most preferably, from 90 to 100% (or 95 to 100% or 100%) by weight of a taurate;
  • a zwitterionic surfactant comprising a betaine, a sultaine or both and c) a hydrophobically modified nonionic thickener comprising from 1 to 10, and preferably, 1 to 8, and most preferably, 2 to 6 ethoxylate bridging groups represented as X- (CH 2 CH 2 O)V- where v is an integer from 2 to 200, and preferably, from 2 to 165, and most preferably, from 2 to 135 in total for all ethoxylate bridging groups present and X is -OH, a Ci4-C 20 , or preferably, a C14-C18, or most preferably, a Cie-C saturated or monounsaturated fatty acid
  • the present invention is directed to a method for washing with the isotropic wash compositions described in the first or second aspect of the invention.
  • the present invention is directed to the use of a hydrophobically modified nonionic thickener comprising from 2 to 10 ethoxylate bridging groups as described in the first and second aspects of the invention to thicken a wash composition that is isotropic, transparent and comprises an organic acid having a log P from 0.0 to 4.95 or from 1.0 to 4.5 or from 1.3 to 3.5.
  • Fatty acid moiety as used herein means RCOO- where R is a saturated or unsaturated Ci4-C 2 o hydrocarbon.
  • Ethoxylate bridging group means a group having the general structure X- (CH2CH2O) a - where a is an integer that does not in total exceed 350 on the nonionic thickener and X is -OH or a fatty acid moiety herein defined.
  • Skin as used herein, is meant to include skin on the arms (including underarms), face, feet, neck, chest, hands, legs, back, buttocks and scalp (including hair).
  • Wash composition as used herein is meant to mean an isotropic composition, including those used to clean a topical surface such as the surface of an inanimate object, and preferably, skin.
  • the wash composition of the present invention can be a shampoo, make-up remover, face cleanser or personal wash for body and/or hands. Such a wash composition is also suitable to use as a home care cleanser for an inanimate object, and therefore, a cleanser for an automobile, table, window, sink, counter, toilet or a cleanser for laundry or upholstery.
  • the wash composition is a personal wash composition for skin.
  • the wash composition is a personal wash composition for the hands.
  • the wash composition is a personal wash composition for the face, and preferably, a face wash that delivers (and is marketed for) anti-microbial benefits like anti-acne benefits.
  • the wash composition typically includes 50 to 90%, and preferably, 55 to 85%, and most preferably, from 60 to 80% (or 60 to 75% or 62 to 72%) by weight water and has a pH from 3.75 to 5.25, and preferably, from 3.85 to 5.15, and most preferably, from 4.2 to 5.0 (or from 4.2 to 4.85).
  • the wash composition is suitable to deliver an active pharmaceutical ingredient (e.g., like corticoids, antihistamines and/or antibiotics).
  • the wash composition is a cosmetic and non- therapeutic composition suitable to remove soil (water and fat soluble) and suppress and remove bacteria from topical surfaces, and preferably, skin, and especially, skin on the hands and face.
  • the wash composition is surprisingly mild, stable and translucent or transparent even when formulated to have a pH that does not exceed 5.25.
  • Mild as used herein, means trained panellists using the wash composition of the invention on their hands and face repeatedly and at least four (4) times in a day observed no skin irritation, as well as having a Zein value ⁇ 7 as defined and determined by a method like the DB-ALM Protocol n° 26 Zein Test Method.
  • Antiacne benefits means trained panellists using the wash composition of the invention on their faces repeatedly and at least two (2) times per day for one (1) week visually observed a reduction in acne.
  • log P is the log (Partition Coefficient) where the partition coefficient, P is equal to [Compound] O ctanoi/[Compound] wa ter.
  • Substantially free of means no more than 2.0% by weight of the total weight of the wash composition, and preferably, less than 1.5% by weight of the total weight of the wash composition. In still another embodiment, substantially free of means less than 1%, and preferably, less than 0.5% by weight of the total weight of the wash composition. Substantially free of, as used herein, is meant to include 0.00001% to 2.0%, or 0.00001 to 1%, or 0.00001 to 0.5%, or 0.0% by weight of the total weight of the wash composition. As to soap, substantially free of (i.e.
  • soap means less than 5.5%, and preferably, less than 4.5%, and most preferably, less than 3.75% by weight soap based on total weight of the wash composition.
  • the wash composition comprises from 0.00001 to 3.5% or 0.001 to 3.35% by weight soap.
  • the liquid composition comprises no (0.0% by weight) soap.
  • Betaine or sultaine as used herein is meant to mean a zwitterionic surfactant derived from the same. In the case of betaine, for example, a preferred surfactant derived therefrom includes cocamidopropyl betaine.
  • the wash composition can be formulated to be substantially free of sulfates, and means, can optionally up to 5% by weight of anionic sulfate comprising surfactant, and preferably, less than 3.5%, and most preferably, less than 1.5% by weight sulfate (or less than 1% or less than 0.5% or from 0.0001 to 0.5% or no (0.0%) sulfate.
  • the wash composition comprises less than 25 ppm or less than 10 ppm or less than 3 ppm 1,4-dioxane (or less than 2 ppm or less than 1 ppm or from or from 0.0 to 0.5 ppm).
  • the wash composition less than 2% by weight silicone or 0.0% by weight silicone (e.g., no cyclosiloxane like decamethylcyclopentasiloxane).
  • Isotropic wash is defined to mean a composition with micelles arranged without directional preference.
  • Transparent means clear and able to see through, Translucent means not opaque and permitting light to pass with diffusion.
  • Skin benefit agents can optionally be used in the liquid composition of the present invention and such agents may be water or oil soluble.
  • the wash composition will have a viscosity from 3,750 to 22,000 cps as taken with a Brookfield helipath TD, with RV Spindle 5, at 25°C and 20 rpm for 1 minute. In the absence of explicitly stating otherwise, all ranges described herein are meant to include all ranges subsumed therein.
  • the term comprising is meant to encompass the terms consisting essentially of and consisting of.
  • composition comprising water, anionic surfactant and acid is meant to include a composition consisting essentially of the same and a solution consisting of the same. Except in the operating comparative examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts or ratios of materials or conditions and/or physical properties of materials and/or use are to be understood as modified by the word “about”.
  • anionic surfactant used in the isotropic wash composition of the present invention at least 75% of the total weight of anionic surfactant is a taurate (or salt thereof).
  • a taurate or salt thereof.
  • the taurate surfactants suitable to be used includes those which are acylamides of taurine or N-methyltaurine, and salts thereof.
  • taurates suitable for use are acyl taurates represented by the general formulae:
  • R 1 C(O)N(R 2 )(CH 2 ) y SO 3 M (I), and R 1 C(O)N(R 2 )CH 2 CH 2 SO 3 M (II), where R 1 is Ce to C 3 o, more particularly, Ce to C 2 4 alkyl, y is 2 or 3, R 2 is hydrogen or methyl, and M is hydrogen or a solubilizing cation such as, for example, hydrogen, ammonium, alkali metal cation, a lower Ci to C4, alkanol ammonium cation and/or a basic amino acid cation.
  • R 1 is Cs to C alkyl.
  • at least half of the R 1 groups are Cs- Cis alkyl.
  • at least half of the R 1 groups are C10 to C14 alkyl.
  • R 1 may be saturated or unsaturated.
  • R 2 is methyl.
  • the acyl taurates selected for use in the invention include, for example, taurates commonly known as sodium methyl lauroyl taurate, sodium methyl myristoyl taurate, sodium methyl cocoyl taurate, sodium methyl oleoyl taurate, sodium cocoyl taurate, potassium methyl myristoyl taurate, calcium methyl lauroyl taurate, potassium methyl lauroyl taurate, ammonium methyl lauroyl taurate or a mixture thereof.
  • the preferred taurate used is sodium methyl lauroyl taurate.
  • anionic surfactants that may be included at less than 25% by weight of the total weight of anionic surfactant used, these include glycinates and salts of the same.
  • Illustrative examples of the glycinates suitable for optional use include those having the formula:
  • R 3 C(O)N(R 4 )CH 2 CO 2 X (III), where R 3 is a Cs-C 2 4 (preferably, a C -C 2 4) alkyl group, R 4 is H or a CH 3 and X is hydrogen a cation such as sodium, potassium, ammonium, a triethanolammonium ion or a mixture thereof.
  • Illustrative examples of the often-preferred optional glycinates suitable for use in the wash composition include sodium cocoyl glycinate, potassium cocoyl glycinate, sodium lauroyl glycinate, potassium lauroyl glycinate, sodium myristoyl glycinate, potassium myristoyl glycinate or a mixture thereof.
  • Glutamates and aspartates are yet another type of optional anionic surfactants suitable for use in the wash composition.
  • Illustrative examples of glutamates suitable for use in the present invention include sodium lauroyl glutamate, sodium cocoyl glutamate, potassium lauroyl glutamate, potassium cocoyl glutamate, disodium cocoyl glutamate, mixtures thereof or the like.
  • Illustrative examples of aspartates suitable for use either alone or together with glutamates and/or the anionic taurates include sodium lauroyl aspartate, potassium lauroyl aspartate, sodium cocoyl aspartate, potassium cocoyl aspartate, mixtures thereof or the like.
  • optional anionic surfactant suitable for use includes sulfate-based surfactants whereby the same can be linear or branched.
  • linear anionic sulfate-based surfactants that may optionally be used include ammonium laureth sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, lauric monoglyceride sodium sulfate, sodium laureth sulfate, sodium pareth sulfate, potassium laureth sulfate, ammonium cocoyl sulfate, ammonium lauroyl sulfate, sodium cocoyl sul
  • Illustrative branched sulfates suitable for optional use include sodium trideceth sulfate, sodium tridecyl sulfate, sodium C12-18 alkyl sulfate (preferably Cu-is or C14-16 sodium alkyl sulfate) sodium C12-16 pareth sulfate, sodium C12-16 pareth-n sulfate, mixtures thereof or the like.
  • additional salts of the aforementioned anionic sulfates can be used in lieu of or in addition to sodium salts, including triethanolamine, diethanolamine, ammonia, potassium and/or calcium salts.
  • the triethanolamine salt of lauryl sulfate is used.
  • the anionic surfactant includes sodium lauryl sulfate, sodium pareth sulfate, sodium laureth sulfate or a mixture thereof.
  • the wash composition is substantially free of sulfate-based surfactants.
  • Alkyl sulfosuccinates and alpha-olefin sulphonates are also suitable for optional use as anionic surfactants.
  • Alkyl sulfosuccinates that may be used include mono- and dialkyl (e.g., C6-C22 alkyl) sulfosuccinates.
  • the sulfosuccinates suitable for use include sodium dioctyl sulfosuccinate, dihexyl sulfosuccinate, sodium dicyclohexyl sulfosuccinate, disodium laureth sulfosuccinate, disodium lauryl sulfosuccinate disodium isodecyl sulfosuccinate mixtures thereof or the like.
  • Commercially available sulfosuccinates are sold by suppliers like Cytec Solvay Group, Stepan Company and Dow Chemical Company.
  • Cs-C 2 o alkyl sulfosuccinates and/or C -C alkyl sulfosuccinates are selected for use.
  • disodium lauryl sulfosuccinate is the anionic surfactant included.
  • the alpha-olefin sulphonate suitable for optional use is typically a Ci 2 - Ci8, and preferably, a Ci 2 -Cie, and most preferably, sodium Cu-Cie alpha-olefin sulphonate or mixtures thereof including those made commercially available by Stepan Company and Clariant.
  • Alkyl benzene sulfonates like sodium tridecyl benzene sulfonate, sodium dodecyl benzene sulfonate may also be considered for use.
  • the wash composition of the present invention can optionally comprise an isethionate as anionic surfactant at levels that do not exceed 1% by weight of the wash composition.
  • isethionate is present at from 0.001 to 0.85%, or from 0.001 to 0.5% by weight of the wash composition.
  • the isethionate used is sodium lauroyl isethionate, sodium cocoyl isethionate, and preferably, sodium 1 -methyl isethionate or a mixture thereof.
  • no isethionate is used (0.0% by weight) or only an acyl 1 -alkyl, 2-alkyl and/or 1 ,2-alkyl isethionate where the alkyl group is often a Ci-C4-alkyl, and preferably, a Ci and/or C 2 alkyl, and most preferably, a methyl group. If an isethionate, sodium 1 -methyl isethionate is preferably selected for use.
  • Such surfactants include at least one acid group.
  • Such an acid group may be a carboxylic or a sulphonic acid group. They often include quaternary nitrogen, and therefore, can be quaternary amino acids. They often generally include an alkyl or alkenyl group of 7 to 18 carbon atoms and generally comply with an overall structural formula:
  • R 5 [-C(O)— NH(CH 2 ) q -],— N + -(R 6 -)(R 7 )A— B
  • R 5 is alkyl or alkenyl of 7 to 18 carbon atoms
  • R 6 and R 7 are each independently alkyl, hydroxyalkyl or carboxyalkyl of 1 to 3 carbon atoms
  • q is 2 to 4
  • r is 0 to 1
  • A is alkylene of 1 to 3 carbon atoms optionally substituted with hydroxyl
  • B is — CO 2 — or — SO3--.
  • Preferred zwitterionic surfactants used in the present invention include are betaines of the formula:
  • R 6 may, in particular, be a mixture of Ci 2 and C14 alkyl groups derived from coconut oil so that at least half, preferably at least three quarters of the groups R 6 have 10 to 14 carbon atoms.
  • R 6 and R 7 are preferably methyl.
  • zwitterionic surfactant is a sulphobetaine of the formula:
  • R 5 CONH(CH 2 ) U — N + -(R 6 )(R 7 )(CH 2 ) 3 SO 3 - where u is 2 or 3, or variants of these in which — (CH 2 ) 3 SO 3 ‘ is replaced by — CH 2 C(OH)(H)CH 2 SO 3 -.
  • R 5 , R 6 and R 7 are as previously defined.
  • zwitterionic surfactants suitable for use include betaines like coco betaine, cocamidopropyl betaine, lauryl betaine, laurylhydroxy sulfobetaine, lauryldimethyl betaine, cocamidopropylhydroxylsulfo betaine, behenyl betaine, capryl/capramidopropyl betaine, cocodimethyl carboxymethyl betaine, stearyl betaine. laurylamidopropyl betaine, mixtures thereof or the like.
  • An additional zwitterionic surfactant suitable for use includes lauryl hydroxysultaine and/or cocamidopropyl sultaine.
  • the zwitterionic surfactant used in the wash composition of this invention is cocamidopropyl betaine.
  • anionic surfactant and zwitterionic surfactant are used at a weight ratio of anionic to zwitterionic surfactant 1 :4.5 to 4.5: 1 or from 3.5: 1 to 1 :3.5 or from 1 :3 to 3:1 or from 2.75:1 to 1 :2.75. to 2.65:1.
  • the anionic surfactant to zwitterionic surfactant are at a weight ratio of 1 :2.65 or from 1 :2.5 or from 1 :2.3 or from 1 :2.15.
  • the anionic surfactant used is at least 95% or 100% by weight of a taurate where sodium lauroyl methyl taurate is the taurate preferred.
  • the zwitterionic surfactant makes is 70 to 100% or 80 to 100% or 90 to 100% by weight betaine or sultaine, preferably betaine. In yet another embodiment of the invention, the zwitterionic surfactant used is at least 95% to 100% by weight of a betaine where cocamidopropyl betaine is the preferred betaine.
  • anionic surfactant and zwitterionic surfactant make up at least 85%, and preferably at least 90%, and most preferably, at least 95 to 99% or 96 to 99% or 100% by weight of the total weight of surfactant in the wash composition.
  • amphoteric surfactants can optionally be included like sodium lauroamphoacetate, sodium cocoamphoacetate, potassium lauroamphoacetate, potassium cocoamphoacetate or mixtures thereof. If used, amphoteric surfactant will make up from 0.001 to 1.65% by weight of the wash composition.
  • cationic surfactants suitable for use include cationic surfactants like heterocyclic ammonium salts such as cetyl or stearyl pyridinium chloride, alkyl amidoethyl pyrrylinodium methyl sulfate, lapyrium chloride or a mixture thereof. If used, cationic surfactants typically do not exceed 1.5% by weight of the wash composition.
  • Nonionic surfactants are another optional surfactant suitable for use in the wash composition of the invention, and they include polyglycerol esters like polyglyceryl-8 caprylate, polyglycerol-8 caprate, polyglyceryl-8 myristate, polyglyceryl-8 palmitate, polyglyceryl-9 caprylate, polyglycerol-9 caprate, polyglyceryl-9 laurate, polyglyceryl-9 myristate, polyglyceryl-9 palmitate, cocamide monoethanolamine (Cocamide MEA), Polysorbate 20 (Tween 20) or a mixture thereof.
  • polyglycerol esters like polyglyceryl-8 caprylate, polyglycerol-8 caprate, polyglyceryl-8 myristate, polyglyceryl-8 palmitate, polyglyceryl-9 caprylate, polyglycerol-9 caprate, polyglyceryl-9 laurate, polyglyceryl-9 myristate, polyglyceryl-9 palmitate, cocamide monoethanol
  • nonionic surfactant typically makes up from 0.001 to 2.5%, and preferably, from 0.0 to 1.75%, and most preferably from 0.1 to 0.8% by weight of the wash composition.
  • cocamide monoethanolamine and/or Tween 20 is/are particularly preferred.
  • the wash compositions of the present invention will typically not have more than 15% by weight total surfactant, and preferably, from 7 to 14.5%, and most preferably, from 8 to 13% or from 9 to 12% or from 9.5 to 11.5% total surfactant.
  • zwitterionic surfactant makes up from 5 to 9%, and preferably, from 6 to 9%, and most preferably, from 6 to 8% by weight of the wash composition and anionic surfactant makes up from about 2.5 to 5%, and preferably, from 3 to 5%, and most preferably, from 3.2 to 4.5% by weight of the wash composition.
  • organic acids suitable for optional use include acids having a log P from 0.0 to 4.95 or from 1.0 to 4.5 or from 1.3 to 3.5.
  • the acids suitable for use include coumaric, benzoic, p-amino benzoic, salicylic, capryloyl salicylic, 3-hydroxybenzoic, 4- hydroxybenzoic and/or gallic acid.
  • Phosphonic acids suitable for use include 4- ethoxyphenylphosphonic, 4-methylphenylphosphonic, 4-chlorophenylphosphonic, phenylphosphonic acid.
  • benzoic, p-amino benzoic, salicylic, capryloyl salicylic acid or a mixture thereof is used.
  • organic acid makes up from 0.5 to 2.5% or from 0.7 to 2.2% or from 0.8 to 2.0% or from 0.8 to 1.6% by weight of the wash composition.
  • the acid used is benzoic, p-aminobenzoic, capryloyl salicylic acid and/or salicylic acid.
  • the acid used comprises salicylic acid and benzoic acid at a weight ratio of 5:95 to 95:5, and preferably, from 25:75 to 75:25, and most preferably, from 40:60 to 60:40.
  • the acid used consists essentially of salicylic acid and benzoic acid at a weight ratio of 5:95 to 95:5, and preferably, from 25:75 to 75:25, and most preferably, from 40:60 to 60:40.
  • the acid used is all salicylic acid or all benzoic acid (i.e. , 100% by weight of the total weight of acid used).
  • 0.001 to 0.02% by weight of such thickener is used.
  • none of such water dispersable polymers, 0.0% by weight of such polymers are used in the wash compositions of the present invention.
  • Fatty acid may optionally be included in the liquid composition of the present invention, the same is often a blend of Cs to C , preferably C12 to Cw, and most preferably, Cw to C fatty acid. Especially preferred is palmitic and/or stearic acid, and most preferably, stearic acid. Typically, when used, such acids will make up from 0.02 to 1.5%, and preferably, from 0.03 to 1.35%, and most preferably, from 0.05 to 1.25% by weight of the translucent or transparent isotropic wash composition.
  • Additional fatty acids suitable to optionally be included are unsaturated fatty acids like linoleic acid (C18:2), oleic acid (C18:1) or mixtures thereof.
  • unsaturated fatty acids like linoleic acid (C18:2), oleic acid (C18:1) or mixtures thereof.
  • unsaturated fatty acid when unsaturated fatty acid is used, the same makes up less than 1%, and preferably, less than 0.75%, and most preferably, less than 0.5% by weight of the total weight of the wash composition.
  • unsaturated fatty acid makes up from 0.0001 to 0.5% by weight of the total weight of the wash composition.
  • unsaturated fatty acid preferably less than 25% of the unsaturated fatty acid used is oleic acid.
  • the wash compositions of the present invention are substantially free of soap. If optionally used in the wash composition of the present invention, the same can include salts that are Cs to C14 and/or Cw to Cw soaps including sodium, potassium or ammonium soaps of lauric, palmitic or stearic acid (laurate, palmitate and/or stearate soap).
  • the transparent or translucent isotropic wash compositions of the present invention will preferably have 0.0% by weight soap.
  • Water typically makes up from 35 to 85%, and preferably, from 45 to 80%, and most preferably, from 55 to 75% by weight of the wash composition.
  • the wash composition of the present invention will have a viscosity from 3,750 to 15,000 cps, and preferably, from 3,800 to 20,000 cps, and most preferably, from 3,900 to 19,000 cps and even more preferably, from 4,000 to 18,500 cps, and whereby 1 cps (centipoise) equals 1 mPa.s (millipascal-second).
  • the wash composition has a viscosity from 5,000 to 14,000 cps or from 14,000 cps to 19,000 cps.
  • Optional but preferred ingredients that may be used in the translucent or transparent isotropic wash compositions of the present invention include preservatives to assist against the growth of potentially harmful microorganisms when the end use wash composition is made.
  • Suitable traditional preservatives that may be used include propionate salts, and a variety of quaternary ammonium compounds.
  • Often preferred preservatives are potassium sorbate, iodopropynyl butyl carbamate, phenoxyethanol, wasabi-based preservatives, imidazolidinyl urea, sodium dehydroacetate and benzyl alcohol.
  • liquid composition of the present invention Often desired additives suitable to be employed in the liquid composition of the present invention are 1,2-alkanediols like 1,2-octanediol, 1,2 hexanediol or mixtures thereof.
  • the liquid composition may comprise of a preservative system that is formaldehyde-free, paraben-free, or both.
  • the preservative used is sodium and/or potassium benzoate whereby preservatives that are isothiazolinones are preferably not used, and therefore, make up less than 0.2% by weight of the wash composition, and more preferably, 0.0% by weight of the wash composition.
  • the preservatives, and/or vicinal diol component will not make up collectively more than 2%, and preferably, not more than 1.3%, and most preferably, from 0.2 to 1.2% by weight of the wash composition. In an embodiment of this invention, from 0.2 to 1.0% by weight preservative, and/or vicinal diol component is used, based on total weight of the wash composition.
  • Fragrance components like eugenol, coumarin, linalyl acetate, citronellal, iris concentrate, terpinyl acetate, terpineol, thymol, pinenes (e.g., alpha and beta pinene) and citronellol may optionally be added to the wash composition.
  • Such components make up from 0.01 to 1.2%, and preferably, from 0.1 to 1%, and most preferably, from 0.1 to 0.65% by weight of the liquid composition when used.
  • optional ingredients suitable for use include zinc pyrithione, octopirox, or a mixture thereof, especially when the liquid composition is used as a shampoo that provides antidandruff benefits.
  • Each of these substances may range from 0.05 to 3%, and preferably, between 0.1 and 2% by weight of the total weight of the wash composition.
  • Additional optional ingredients that may be used include sensory oils and/or exfoliants.
  • Desirable oils include rose, lime, coconut, lavender, argan, tea tree, sweet almond oil(s) or mixtures thereof.
  • Illustrative exfoliants desirable for use include salt, sugar, apricot, walnut shell, rice, nutmeg and/or oatmeal powder(s).
  • sensory oils and exfoliants can make up from 0.1 to 2% by weight of wash composition, with the proviso that the total amount of fragrance and sensory oil does not exceed 2.5% by weight of the composition, and preferably, not more than 2.0 percent by weight of the wash composition.
  • the wash composition may optionally include vitamins.
  • Illustrative vitamins include Vitamin B2, Vitamin B3 (niacinamide), Vitamin Be, Vitamin C, Vitamin E, Folic Acid and Biotin.
  • Derivatives of the vitamins may also be employed.
  • Vitamin C derivatives include ascorbyl tetraisopalmitate, magnesium ascorbyl phosphate and ascorbyl glycoside.
  • Derivatives of Vitamin E include tocopheryl acetate, tocopheryl palmitate and tocopheryl linoleate.
  • DL- panthenol and derivatives may also be employed.
  • Total amount of optional vitamins when present may range from 0.001 to 5%, and preferably from 0.01 % to 3%, optimally from 0.1 to 1 % by weight of the wash composition.
  • resorcinols like 4-ethyl resorcinol, 4-hexyl resorcinol, 4-phenylethyl resorcinol, dimethoxytoluyl propyl resorcinol, 4-cyclopentyl resorcinol, 4-cyclohexylresorcinol, thiamidol; alpha- and/or beta-hydroxyacids; retinoic acid and its derivatives (e.g., cis and trans); retinal; retinol; retinyl esters such as retinyl acetate, retinyl palmitate, and retinyl propionate; petroselinic acid; conjugated linoleic acid; 12-hydroxystearic acid; mixtures thereof or the like.
  • resorcinols like 4-ethyl resorcinol, 4-hexyl resorcinol, 4-phenylethyl resorcinol
  • Conditioning agents such as polyquaternium compounds (e.g., polyquaternium-67) may also be desirable for inclusion in the inventive composition.
  • Such additives when used, collectively make up from 0.001 to 3%, preferably, from 0.01 to 2%, and, most preferably, from 0.1 to 1.5% by weight of the wash composition.
  • Desquamation promoters may be present.
  • Illustrative are the alpha-hydroxycarboxylic acids, beta-hydroxycarboxylic acids.
  • the term “acid” is meant to include not only the free acid but also salts and C1-C30 alkyl or aryl esters thereof and lactones generated from removal of water to form cyclic or linear lactone structures.
  • Representative acids are glycolic and its derivatives, lactic and malic acids. Amounts of these materials when present may range from 0.01 to 3%, and, preferably, from 0.1 to 2% by weight of the wash composition.
  • a variety of herbal extracts may optionally be included in the cosmetic wash compositions of this invention.
  • Illustrative extracts include those removed from green tea, yarrow, ginseng, marigold, hibiscus, ginko biloba, chamomile, licorice, aloe vera, grape seed, citrus unshiu, willow bark, sage, rosemary and bambusa vulgaris shoot extract.
  • extracts make up from 0.001 to 1%, and preferably from 0.01 to 0.8%, and most preferably, from 0.03 to 0.5% by weight of the wash composition.
  • Humectants like glycerol and other polyols may also be included.
  • Humectants preferably glycerine when used, typically make up from 0.01 to 8%, preferably, from 0.01 to 6%, and most preferably, from 0.02 to 4% by weight of the wash composition.
  • hemp oil with 2.5 to 25% by weight cannabigerol and/or cannabidiol at from 0.5 to 10 percent by weight.
  • cannabigerol and/or cannabidiol makes up from 0.0001 to 5% by weight of the composition, and preferably, from 0.01 to 3% by weight of the wash composition.
  • optionally suitable for use include materials like chelators (e.g., EDTA), opacifiers (like TiC>2, particle size from 50 to 1200 nm, and preferably, 50 to 350 nm), kaolin, bentonite, zinc oxide, iron oxide, mica, Cs-22 fatty acid substituted saccharides, lipoic acid, retinoxytrimethylsilane (available from Clariant Corp, under the Silcare 1M-75 trademark), dehydroepiandrosterone (DHEA) or mixtures thereof.
  • Ceramides including Ceramide 1, Ceramide 3, Ceramide 3B and Ceramide 6) as well as pseudoceramides may also be optionally included as can 10-hydroxystearic acid. Amounts of these additional and optional materials, when used, may range from 0.0001 to 3%, and preferably, from 0.001 to 2%, and most preferably, from 0.001 to 1.5% by weight of the wash composition.
  • Colorants or dyes may also be included in the wash compositions. These substances may range from 0.05 to 5%, and preferably, between 0.1 to 2% by weight of the wash composition. Conditioning agents like hydroxypropyltrimonium chloride, 5-ureidohydantoin and/or glyoxyldiureide may be used. Such components, when used, make up from 0.5 to 4%, and, preferably, from 0.75 to 3%, and most preferably, from 1 to 2% by weight of the wash composition.
  • Sunscreen actives may also be optionally included in the wash composition of the present invention. Particularly preferred are such materials as ethylhexyl p-methoxycinnamate, available as Parsol MCX®, Avobenzene, available as Parsol 1789® and benzophenone-3, also known as Oxybenzone.
  • Inorganic sunscreen actives may be employed such as microfine titanium dioxide, zinc oxide, polyethylene and various other polymers. Amounts of the sunscreen agents when present may generally range from 0.01 to 3%, and preferably, from 0.5 to 2%, optimally, from 0.75 to 1.5% by weight of the wash composition.
  • buffers/pH modifiers may be used. These include commonly employed additives like sodium hydroxide, potassium hydroxide, hydrochloric acid, citric acid/citrate buffers, triethanolamine, or mixtures thereof where pH is determined using a Thermo Fisher Scientific pH meter.
  • Optional antimicrobial ingredients may be used but are not required.
  • Illustrative ingredients include quaternary ammonium compounds like cetylpyridinium chloride, cetyltrimethylammonium chloride, cetyltrimethylammonium bromide, benzalkonium chloride, benzethonium chloride, cetrimide or mixtures thereof.
  • Cetrimonium chloride and/or bromide, chloroxylenol, antimicrobial lipids, antimicrobial peptides or mixtures thereof may also be used.
  • Triclosan may also be used but is not generally desired.
  • Mixtures of thymol and terpineol are often desired for use, typically at a weight ratio from 1 :3 to 3:1 or from 1 :2 or 2:1 or from 1:0.7 to 0.7:1.
  • such optional antimicrobial ingredients make up from 0.001 to 6%, and preferably, from 0.01 to 5%, and most preferably, from 0.01 to 2.5% by weight of the wash composition.
  • wash composition When preparing wash composition, conventional techniques may be used, and these include moderate shear mixing at atmospheric pressure and temperatures between 25 to 50°C.
  • a wide variety of packaging can be employed with the wash composition of this invention.
  • the packaging used with the composition of the present invention is packaging made from recycled material like post-consumer resins or biodegradable material.
  • the wash composition is sold in biodegradable packaging material, like post-consumer resins.
  • Samples l-ll of Table I were mixed with moderate shear under atmospheric conditions and with temperature at 35 °C.
  • the Samples were made according to the present invention whereby hydrophobically modified nonionic thickener was used with a betaine to taurate weight ratio of 1.9:1. Viscosity was measured with a Brookfield Viscometer as described herein.
  • the ingredients are presented as weight percent (Wt.%) based on total weight of the wash composition. Water was added to balance at 100%.
  • Example 1 iii- Cocamide monoethanolamine
  • the compositions (Samples l-ll) of Example 1 were made consistent with the present invention and were made free of (0.0% by weight) sulfates, soaps, epoxides, ethanol, halogenated antimicrobial actives, cyclosilicones, parabens, hydantoins and isothiazolinones yet surprisingly remained stable with no syneresis and maintained favorable viscosities.
  • Samples I ll-VI were made in a manner consistent with the one described in Example I except hydrophobically modified nonionic thickener was not used according to the present invention.
  • Example 2 i-acrylate copolymer, Dow Chemical ii-SF-1 , Carbopol® Aqua, Lubrizol, acrylate copolymer iii- Cocamide monoethanolamine
  • the wash compositions made according to Example 2 did not comprise hydrophobically modified nonionic thickener consistent with the present invention. After being reviewed by skilled panelists, the compositions were not usable, were unstable, showed visual evidence of syneresis and/or ingredient flocculation and/or agglomerate formation. Additionally, the compositions made according to Example II were not clear but surprisingly opaque, cloudy and not homogeneous in appearance.

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Abstract

L'invention concerne une composition de lavage qui est douce, stable et est translucide ou transparente. La composition de lavage est isotrope et comprend un épaississant non ionique modifié de manière hydrophobe et un tensioactif anionique qui contient un taurate.
EP23836801.3A 2022-12-27 2023-12-20 Composition de lavage liquide isotrope translucide ou transparente Pending EP4642427A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22216808 2022-12-27
PCT/EP2023/086956 WO2024141375A1 (fr) 2022-12-27 2023-12-20 Composition de lavage liquide isotrope translucide ou transparente

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EP4642427A1 true EP4642427A1 (fr) 2025-11-05

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CN (1) CN120731065A (fr)
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Publication number Priority date Publication date Assignee Title
US6794344B2 (en) 2002-11-20 2004-09-21 The Dial Corporation Soap bars exhibiting antibacterial effectiveness and method of producing same
US20070207112A1 (en) 2005-12-07 2007-09-06 Grant Industries, Inc. Anti-acne composition
US20100098776A1 (en) 2008-10-21 2010-04-22 Conopco, Inc., D/B/A Unilever Soap-based liquid wash formulations with enhanced deposition of antimicrobial agents
CA3126679C (fr) 2012-07-23 2025-05-13 Innovative Biodefense, Inc. Formulations topiques de désinfection et utilisations associées
GB201414344D0 (en) 2014-08-13 2014-09-24 Reckitt Benckiser Llc Bar soap composition
US9974726B2 (en) * 2016-04-25 2018-05-22 L'oreal Gentle cleansing compositions with makeup removal properties
KR102703846B1 (ko) * 2017-05-04 2024-09-10 존슨 앤드 존슨 컨수머 인코포레이티드 개선된 클렌징 조성물
CA3164296A1 (fr) * 2020-01-21 2021-07-29 Douglas John Hiban Composition tensioactive hydratable concentree
EP4334424B1 (fr) * 2021-05-04 2024-12-18 Unilever IP Holdings B.V. Composition tensioactive concentrée hydratable sensiblement exempte d'iséthionates

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CN120731065A (zh) 2025-09-30
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