WO2018153658A1 - Silicone-free shampoo composition - Google Patents

Silicone-free shampoo composition Download PDF

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Publication number
WO2018153658A1
WO2018153658A1 PCT/EP2018/052984 EP2018052984W WO2018153658A1 WO 2018153658 A1 WO2018153658 A1 WO 2018153658A1 EP 2018052984 W EP2018052984 W EP 2018052984W WO 2018153658 A1 WO2018153658 A1 WO 2018153658A1
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Prior art keywords
weight
composition according
shampoo composition
carbon atoms
composition
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PCT/EP2018/052984
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French (fr)
Inventor
Jingbo RUAN
Steven JIA
Xiaopeng Hong
Tan WANG
Zhaoxia Bao
Original Assignee
Beiersdorf Daily Chemical Wuhan Co. Ltd. (Früher C-Bons)
Beiersdorf Ag
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Application filed by Beiersdorf Daily Chemical Wuhan Co. Ltd. (Früher C-Bons), Beiersdorf Ag filed Critical Beiersdorf Daily Chemical Wuhan Co. Ltd. (Früher C-Bons)
Priority to EP18706660.0A priority Critical patent/EP3585487A1/en
Priority to CN201880013659.7A priority patent/CN110520197A/en
Publication of WO2018153658A1 publication Critical patent/WO2018153658A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00Preparations for care of the hair
    • A61Q5/02Preparations for cleaning the hair
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • A61K8/463Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73Polysaccharides
    • A61K8/731Cellulose; Quaternized cellulose derivatives
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73Polysaccharides
    • A61K8/737Galactomannans, e.g. guar; Derivatives thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/817Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/817Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)
    • A61K8/8182Copolymers of vinyl-pyrrolidones. Compositions of derivatives of such polymers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/86Polyethers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00Preparations for care of the hair
    • A61Q5/12Preparations containing hair conditioners
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/30Characterized by the absence of a particular group of ingredients
    • A61K2800/34Free of silicones
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/54Polymers characterized by specific structures/properties
    • A61K2800/542Polymers characterized by specific structures/properties characterized by the charge
    • A61K2800/5426Polymers characterized by specific structures/properties characterized by the charge cationic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00Preparations for care of the hair
    • A61Q5/006Antidandruff preparations

Definitions

  • the present invention belongs to the cosmetic field and relates to a silicone-free shampoo composition for human hair comprising at least one PPG-alkyl ether, at least one cationic conditioning polymer and at least one anionic, amphoteric and/or non-ionic surfactant.
  • a beautiful and attractive appearance is a desire for many people.
  • One of the main aspects, which defines such a positive appearance is the look of the hair of the head.
  • customers In order to take care on the hair customers usually apply a number of cosmetic products on a daily basis. Typically, this starts with washing the hair using a commercial shampoo product.
  • Such shampoos contain surfactants which remove excess of soil or sebum from the hair.
  • the surfactants are usually chosen from anionic, cationic, amphoteric and non-ionic surfactants.
  • anionic surfactants are contained in the shampoo compositions, as they promote the formation of foam and ensure an effective removal of dirt, soil and/or sebum.
  • a leave-in or rinse-off conditioning composition may be applied after washing to the hair.
  • a composition usually contains as surfactants solely cationic surfactants, which, in difference to other surfactants, do not allow for an effective cleaning of the hair. Instead, the hydrophilic ends of the cationic surfactants may bind to the creatine of the hair and the hydrophobic ends of the cationic surfactants may act as protective a layer for the hair.
  • such conditioning compositions often contain for example film-forming polymers, moisturizers, hydrolyzed proteins and/or antistatic agents.
  • a leave-in or rinse-off conditioner requires a second, time consuming step after washing the hair. Therefore, it is desirable to provide a composition which cleans and conditions the hair simultaneously.
  • the second way to improve the detangling and the combability of the hair can be achieved by applying a shampoo composition which contains silicone components. Silicones are excellent conditioner which may be effectively deposited onto the hair even while being implemented in a shampoo composition containing anionic, amphoteric and/or non-ionic surfactants. Thereby, the silicones provide improved compatibility, feel, softness, and lessening frizz. However, it is a well-known fact that silicone residues can build-up on the hair. As a result, these silicone residues weigh down the hair, which reduces the hair volume.
  • silicone-free shampoo composition have a number of disadvantages.
  • those shampoos often do not allow for an effective deposition of conditioning polymers onto the hair in the presence of anionic surfactants. Therefore, it is hardly possible to provide a silicone-free shampoo composition which allows to clean the hair and to apply a protective conditioning layer simultaneously.
  • silicone-free shampoo compositions do often not allow a sufficiently easy detangling while combing the wet hair after washing and/or the combability of the hair is adversely affected after washing.
  • many silicone-free shampoo compositions do not build-up a large amount of foam while washing the hair, wherein insufficiently small foam-bubbles are formed.
  • the objective of the present invention is therefore, to provide a silicone-free shampoo composition, which allows for an effective cleaning of the hair and which does not exhibit the disadvantages discussed above.
  • WO 2014077826 A1 discloses a cleansing composition containing anionic surfactants and alkoxylated alkyl ether.
  • the document does not disclose compositions containing cationic conditioning polymers. Therefore, the document does not direct the skilled person to the objective of the present invention.
  • a silicone-free shampoo composition comprising at least one PPG-alkyI ether, at least one cationic conditioning polymer and at least one anionic, amphoteric and/or non-ionic surfactant allows for a significant improved deposition of conditioning polymers onto the hair.
  • a silicone-free shampoo composition allows for a significant improvement of the detangling and/or combability of the hair, after use of the shampoo composition.
  • shampoo compositions according to the invention allow for an improved foam formation during washing the hair.
  • the shampoo composition of the present invention comprises at least one PPG-alkyl ether as defined by formula (I)
  • / ' is an integer in the range from 1 to 12
  • j is an integer in the range from 2 to 40.
  • PPG polypropylene
  • Preferred PPG-alkyl ethers are defined by / being an integer in the range from 4 to 8 and j being an integer in the range from 2 to 15. More preferred is the PPG-14 butyl ether. PPG-14 butyl ether is commercially marketed under the trade name UCON Fluid AP by the company Dow Chemical.
  • the PPG-alkyl ethers may be present in the composition of the present invention in a total concentration from 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight, calculated to the total weight of the composition.
  • PPG-14 butyl ether is included as PPG-alkyl ether.
  • the total concentration of PPG-14 butyl ether is in the range from 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight, calculated to the total weight of the composition, and no further PPG-14 butyl ether is contained in the composition.
  • the shampoo composition of the present invention comprises at least one cationic conditioning polymer.
  • cationic polymer denotes polymers containing cationic groups and/or groups, which are ionizable into cationic groups. Due to the reason that the shampoo composition according to the present invention is a silicone free composition, the cationic conditioning polymer included in the composition does not include a silicone atom. According to the invention the cationic conditioning polymers are chosen from
  • cationic guar gums This group of cationic conditioning polymers includes cationic guar derivatives and hydrophobically modified cationic guar derivatives.
  • Preferred cationic guar derivatives are cationic hydroxyl (Ci to C4)-alkyl-Guar derivatives such as hydroxyethyltrimethylammonium-guar or hydroxypropyltimethylammonium-guar.
  • Most preferred are cationic guar derivatives known under the CTFA designation Guar Hydroxypropyltrimonium Chloride.
  • Such products are available under the trade names JAGUAR C13 S, JAGUAR C 15 and JAGUAR C 17 by the company Solvay.
  • cationic celluloses examples include the cationic cellulose copolymers, cellulose ether derivatives comprising quaternary ammonium groups or the cellulose derivatives grafted with a water-soluble ammonium monomer.
  • those preferred cationic celluloses are known under CTFA designation Polyquaternium-4, Polyquaternium-10 or Polyquaternium-67.
  • Polyquaternium-10 is commercially available under the trade names UCARE Polymer JR-400, Conditioner P10 or CELQUAT® SC-240C Polymer.
  • Ri represents a hydrogen atom or CH 3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical, whereby an alkyl group containing 1 to 6 carbon atoms is preferred;
  • R5 and R6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms, whereby the selection of methyl and/or ethyl groups is preferred;
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms, preferably containing 2 or 3 carbon atoms, or represents a hydroxyalkyl group containing 1 to 4 carbon atoms;
  • A represents a halide, such as chloride or bromide, or an anion derived from an inorganic or organic acid such as methosulphate anion.
  • the copolymers comprising at least one of the monomeric units specified above may further comprise co-monomers chosen from the group acrylic or methacrylic acid, esters of acrylic acid or methacrylic acid; acrylamides, methacrylamides, acrylamides and methacrylamides substituted on the nitrogen with alkylgroups containing 1 to 4 carbon atoms, diacetone acrylamides, vinyllactams, for example vinylcaprolactam or vinylpyrrolidone, and/or vinyl esters.
  • Typical polymers of this group are for example those, which are formed by the reaction of diethyl sulfate and a copolymer of vinylpyrrolidone and dialkylaminoalkyl acrylate or methacrylate such as the substances sold under the trade name GAFQUAT by the company Ashland. Typical examples are named GAFQUAT 755, GAFQUAT 755N or GAFQUAT 734. Further polymers of the group are known under the trade name Copolymer 845 or Copolymer 937, also available from the company Ashland. Another example of such a cationic conditioning Polymer is Polyquaternium- 47, which is marketed under the trade name Merquat 2001 Polymer by the company Lubrizol.
  • copolymers which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone.
  • Typical examples of those copolymers are marketed under the names Luviquat FC 905, Liviquat FC 550 and Luviquat FC 370 by the company BASF.
  • k is either 0 or 1 ;
  • / is either 0 or 1 ;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • B is an anion such as a halide (bromid, chloride), acetate, borate, citrate, tartrat, bisulphate, bisulphite, sulphate or phosphate.
  • cyclic units are therein characterized that the substituents Re and Rg represent independently of each other an alkyl group containing 1 to 4 carbon atoms.
  • a typical cationic copolymer containing such cyclic units is known under the CTFA designation Polyquaternium-7, which is polymerized from acrylamide and dimethyldiallylammonium chloride. Polyquaternium-7 is commercially available under various trade names. Especially preferred are the products Merquat 550 Polymer marketed by the company Lubrizol and Salcare SC10 sold by the company BASF.
  • Polyquaternium-6 which is a polymeric quaternary ammonium salt of dimethyldiallylammonium chloride.
  • Polyquaternium-6 is commercially available under the trade name Merquat 100 Polymer, which is sold by the company Lubrizol.
  • the cationic conditioning polymers listed above may be present in the shampoo composition in a total concentration from 0.001 % to 10% by weight, preferably from 0.1 % to 5% by weight, and more preferably 0.2% to 2% by weight, calculated to the total weight of the composition.
  • the cationic conditioning polymers contained in the shampoo composition of the invention are preferably chosen from the group Polyquaternium-4, Polyquaternium-6, Polyquaternium-10, Polyquaternium-47, Polyquaternium-67, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride and/or Guar Hydroxypropyltrimonium Chloride.
  • cationic guar polymers which have a molecular weight (weight-average) from 1000 to 5000000, preferably from 100000 to 3000000 and a cationic charge density of at least 0.5 meq/g.
  • Guar Hydroxypropyltrimonium Chloride is contained as cationic conditioning polymer, it is preferred if the concentration of Guar Hydroxypropyltrimonium Chloride is in the range from 0.05% to 0.2% by weight. And furthermore, in the case Guar Hydroxypropyltrimonium Chloride is contained as cationic conditioning polymer it is preferred if at least one cationic conditioning polymer selected from the group Polyquaternium-4, Polyquaternium-6, Polyquaternium-10, Polyquaternium-47 and Polyquaternium-67 is also contained in the composition.
  • anionic, amphoteric and/or non-ionic surfactants may be present in a total concentration from 4% to 40% by weight, calculated to the total weight of the composition.
  • Suitable anionic surfactants include linear and branched fatty acids containing 8 to 30 carbon atoms; alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3 " C + , in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; sulfonates of unsaturated fatty acids containing 8 to 24 carbon atoms and comprising 1 to 6 double bonds: ether carboxylic acids of the formula Rn-0-(CH2-CH20) n -CH2-COOH, in which Rii is a linear or branched, saturated or unsaturated alkyl group containing 8 to 30 carbon atom
  • Ri 2 represents an aliphatic radical containing 8 to 30 carbon atoms
  • R13 represents a hydrogen atom, an (OCH2-CH2)q-Ri2 group or D
  • q represents an integer in the range from 0 to 10
  • D represents a Hydrogen, an alkali, alkaline-earth or an quaternary ammonium ion containing four alkyl groups, which contain independently of another 1 to 4 carbon atoms each.
  • the anionic surfactant is preferably selected from
  • (1 ) alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3 " C + , in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
  • Suitable, but non limiting examples of those preferred anionic surfactants are Sodium Laureth Sulfate and Sodium Lauryl Sulfate.
  • the concentration of the anionic surfactants in the shampoo composition is preferably in the range from 5% to 30% by weight, more preferably from 10% to 20% by weight, calculated to the total weight of the composition.
  • At least one amphoteric surfactant in a total concentration from 0.5% to 15% by weight, preferably from 1 % to 5% by weight and more preferably from 1 .5% to 4% by weight, calculated to the total weight of the composition.
  • amphoteric surfactants are preferably chosen from the group alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulphobetaines (sultaines), alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amphopropionates, alkylamphoglycinates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates, wherein the alkyl and acyl groups contain from 8 to 19 carbon atoms.
  • Typical examples of those groups include lauryl amine oxide, cocodimethyl sulphopropyl betaine, lauryl betaine, cocamidopropyl betaine and sodium cocoamphoacetate.
  • cocamidopropyl betaine is chosen as the most preferred amphoteric surfactant.
  • the shampoo composition according to the invention can contain one or more non-ionic surfactants in a concentration ranging from 0.3% to 15% by weight, preferably from 0.5% to 10% by weight, more preferably 1 % to 8% by weight, calculated to the total weight of the composition.
  • non-ionic surfactants are condensation product of aliphatic primary or secondary, linear or branched chain alcohols or phenols containing from 8 to 18 carbon atoms with ethylene oxides comprising 6 to 30 ethylene oxide groups.
  • Other suitable nonionic surfactants include mono- or di-alkyl aikanoiamides. Typical examples are coco mono- or di- ethanoiamide and coco mono-isopropanolamide.
  • Other groups of non-ionic surfactants which may be included in the shampoo composition are alkyl polyglucosides or sorbitan fatty acid esters and addition products of ethylene oxide with sorbitan fatty acid esters such as for example polysorbates.
  • non-ionic surfactants are chosen from fatty acid aikanoiamides, such as coco mono- or di- ethanoiamide, known for example under the CTFA declaration Cocamide MEA and Cocamide DEA, and/or alky glycosides.
  • the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight of at least one PPG-alkyl ether defined by formula (I)
  • / ' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40; b) at least one cationic conditioning polymer chosen from
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid
  • copolymers which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • the silicone-free shampoo composition comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14 butyl ether;
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid
  • copolymers which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
  • k is either 0 or 1 ;
  • / is either 0 or 1 ;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • Silicone-free Shampoo compositions which are most preferred within the first embodiment of the invention comprise - calculated relative to the total weight of the composition - a) 0.15% to 3% by weight PPG-14 butyl ether;
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid
  • copolymers which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
  • k is either 0 or 1 ;
  • / is either 0 or 1 ;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • (1 ) alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3 " C + , in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
  • the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight of at least one P defined by formula (I)
  • / ' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40;
  • the silicone-free shampoo composition comprises -calculated relative to the total weight of the composition- a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14-butyl ether;
  • Silicone-free Shampoo compositions which are most preferred within the second embodiment of the invention comprise -calculated relative to the total weight of the composition- a) 0.15% to 3% by weight PPG-14 butyl ether;
  • (1 ) alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3 " C + , in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
  • the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight rmula (I)
  • / ' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40;
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyi group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid
  • the silicone-free shampoo composition comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14 butyl ether;
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyi group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid
  • Silicone-free Shampoo compositions which are most preferred within the third embodiment of the invention comprise - calculated relative to the total weight of the composition - a) 0.15% to 3% by weight PPG-14 butyl ether;
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyi group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and f?6 represent independently of each other a hydrogen atom or an alkyi group containing 1 to 6 carbon atoms;
  • Z represents a linear or branched alkyi group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid
  • alkyi sulfate and/or alkyi polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH 2 )m-OS03 " C + , in which R 10 stands for a linear or branched, saturated or unsaturated alkyi group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
  • the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight of at least one PPG-alkyl ether defined by formula (I)
  • / ' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40;
  • k is either 0 or 1 ;
  • / is either 0 or 1 ;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • the silicone-free shampoo composition comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14 butyl ether;
  • k is either 0 or 1 ;
  • / is either 0 or 1 ;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyi group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • Silicone-free Shampoo compositions which are most preferred within the fourth embodiment of the invention comprise - calculated relative to the total weight of the composition - a) 0.15% to 3% by weight PPG-14 butyl ether;
  • the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight of at least one PPG-alkyl ether defined by formula (I)
  • / ' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40; b) at least one cationic conditioning polymer chosen from
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid; (4) copolymers, which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
  • k is either 0 or 1 ;
  • / is either 0 or 1 ;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • the silicone-free shampoo composition comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14 butyl ether;
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid
  • copolymers which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
  • k is either 0 or 1 ;
  • / is either 0 or 1 ;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • Silicone-free Shampoo compositions which are most preferred within the firth embodiment of the invention comprise - calculated relative to the total weight of the composition - a) 0.15% to 3% by weight PPG-14 butyl ether;
  • Ri represents a hydrogen atom or CH3 radical
  • R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
  • R5 and R6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms
  • Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
  • A represents a halide or an anion derived from an inorganic or organic acid;
  • copolymers which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
  • k is either 0 or 1 ;
  • / is either 0 or 1 ;
  • R7 represents either a hydrogen atom or a methyl radical
  • Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms;
  • the concentration of the amphoteric surfactant is in the range from 0.5% to 15% by weight, preferably from 1 % to 5% by weight and more preferably from 1 .5% to 4% by weight, and
  • the concentration of the non-ionic surfactant is in the range from 0.3% to 15% by weight, preferably from 0.5% to 10% by weight, more preferably 1 % to 8% by weight.
  • the shampoo compositions according to the invention may also preferably comprise one or more cationic surfactants.
  • Suitable cationic surfactants which can be used in the shampoo compositions of the invention, are quaternary ammonium salts defined by the formula (IX)
  • Ru and Ris stand for a hydrogen atom or an alkyl chain containing from 1 to 4 carbon atoms which are optionally substituted with one or more hydroxyl groups,
  • Rw stands for a saturated or unsaturated, branched or non-branched alky chain containing 8 to 24 carbon atoms
  • Ri6 stands for Ri8CON(CH2) r group, wherein /1 ⁇ 2 is a saturated or unsaturated, branched or non-branched alkyl chain containing from 7 to 21 carbon atoms and r is an integer in the range from 1 to 4,
  • Ri6 stands for Ri9COO(CH2) s group, wherein R19 stands for a saturated or unsaturated, branched or non-branched alkyl chain containing 7 to 21 carbon atoms and s is an integer in the range from 1 to 4,
  • Ru stands for a hydrogen atom or for a saturated or unsaturated, branched or non-branched alky chain containing from 8 to 24 carbon atoms
  • Ru stands for a Ri8CON(CH 2 ) r or Ri9COO(CH 2 ) s group, wherein R 18 , R19, r and s have the same meaning as above,
  • E is an anion, preferably chloride or bromide.
  • Suitable but not limiting examples of above defined cationic surfactants are octyltrimethylammonium chloride, decyltrimethylammonium chloride, dodecyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, tetramethylammonium chloride, tetraethylammonium chloride, cetylpyridinium chloride, octyldimethylbenzylammonium chloride, decyldimethylbenzylammonium chloride, stearyldimethylbenzylammonium chloride, didodecyldimethylammonium chloride and dioctadecyldimethylammonium chloride.
  • the most preferred cationic surfactants to be contained in the compositions of the invention are cetyltrimethylammonium chloride and/or behenyltrimethylammonium chloride.
  • Cetyltrimethylammonium chloride is available under the trade name VARISOFT 300 from the Fa. Evonik Industries or Dehyquart® A-CA from the Fa. BASF.
  • Behenyltrimethylammonium chloride is commercially available under the trade name QUARTAMIN® AB from the Fa. Kao Chemicals.
  • the cationic surfactants are preferably used in a concentration in the range from 0.1 % to 5% by weight, more preferably 0.2% to 3% by weight, calculated to the total weight of the composition.
  • non-ionic or amphoteric conditioning agents for example, protein and polyprotein hydrolysates, such as hydrolyzed silk, hydrolyzed wheat protein and/or hydrolyzed collagen.
  • fatty alcohols comprising 8 to 22 carbon atoms, preferably 14 to 18 carbon atoms.
  • saturated alcohols such as cetyl alcohol, stearyl alcohol and/or mixtures thereof are the most preferred ones.
  • Cetyl alcohol is commercially available under the trade name Lanette® 16 from the company BASF.
  • stearyl alcohol can be purchased under the trade name Lanette® 18 from the company BASF.
  • Mixtures of cetyl alcohol and stearyl alcohol can also be obtained from the company BASF.
  • the trade name of the mixture is called Lanette® O.
  • the fatty alcohols are preferably contained in a total concentration from 0.01 % to 5% by weight, more preferably from 0.1 % to 2% by weight, calculated to the total weight of the composition.
  • non-ionic conditioning agents which may be comprised in the shampoo composition of the invention, are water-soluble, non-ionic cellulose polymers.
  • water-soluble refers to any material that is sufficiently soluble in water to form a clear solution to the naked eye at a concentration of 1.0% or more by weight of the material in water at 25°C.
  • Suitable water-soluble, non-ionic cellulose polymers may be chosen from the group methylcellulose, ethylcellulose, hydroxyethyl ethylcellulose, methyl ethylcellulose, hydroxypropylcellulose and/or hydroxypropyl methylcellulose.
  • the water-soluble, nonionic cellulose polymer may generally be present in the shampoo composition of the invention at concentrations ranging from 0.01 to 2%, preferably from 0.02 to 0.5% by weight, calculated to the total weight of the composition. In the case these water-soluble, non-ionic cellulose polymers are contained in the composition of the invention, the hair feels extraordinarily smooth after use of the inventive shampoo composition.
  • composition of the invention may further comprise one or more rheology modifiers, which do not contain a cationic group.
  • rheology modifiers can be selected from polyacrylic acids, cross-linked polymers of acrylic acid or methacrylic acid, copolymers of acrylic or methacrylic acid with hydrophobic monomers, copolymers of carboxylic acid- containing monomers and acrylic esters, and cross-linked copolymers of acrylic acid and acrylate esters, with the provision that these polymers do not contain a cationic group.
  • Polymers of acrylic acid cross-linked with a poly-functional agent may also be used; they are commercially available as Carbopol 980, Carbopol Ultrez 10 polymer and Carbopol Aqua SF- 1 polymer and can be purchased from the company Lubrizol.
  • Examples of a suitable copolymers comprising carboxylic acid containing monomers and acrylic acid esters monomers are Carbopol 1342 polymer and Pemulen TR-1 , also available from the company Lubrizol.
  • those rheology modifier which are known under the CTFA declaration Carbomer and Acrylates/CI O-30 Alkyl Acrylate Crosspolymer.
  • compositions of the invention may be present in compositions of the invention at a concentration from 0.1 % to 6% by weight, preferably from 0.5% to 4% by weight, calculated to the total weight of the composition.
  • the shampoo composition can additionally comprise at least one vegetable and/or fruit oil in a total concentration from 0.01 % to 5% by weight, preferably from 0.1 % to 4.5% by weight, calculated to the total weight of the composition.
  • Preferred vegetable or fruit oils which may be comprised in the composition, are walnut oil, bamboo oil, peach kernel oil, grape seed oil, apricot kernel oil, avocado oil, tea tree oil, soybean oil, sesame oil, sunflower oil, tsubaki oil, evening primrose oil, rice bran oil, palm kernel oil, mango kernel oil, lady's smock oil, thistle oil, coconut oil, (sweet) almond oil, macadamia nut oil, amaranth seed oil, argan oil, olive oil, wheatgerm oil, pumpkin seed oil, hazelnut oil, mallow oil, safflower oil, canola oil, sasanqua oil, jojoba oil, rambutan oil, cocoa butter, shea butter and/or mixtures of these oils.
  • citric acid or lactic acid may be added to the composition of the invention to adjust the pH value.
  • sodium hydroxide may also be contained for pH-adjustments.
  • the pH value of the composition is in the range from 3.0 to 6.9, preferably from 3.5 to 6.5.
  • the shampoo composition of the invention may comprise water in a concentration of more than 50% by weight, preferably more than 65% by weight, calculated to the total weight of the composition.
  • the shampoo composition of the invention may further comprise pearlescent agents such as glycol distearic acid esters, Ce- C30 fatty acid monoglycol esters and/or mica pigments coated with titanium dioxide.
  • pearlescent agents such as glycol distearic acid esters, Ce- C30 fatty acid monoglycol esters and/or mica pigments coated with titanium dioxide.
  • Preferred pearlescent agents which may be comprised in the shampoo composition according to the invention, are PEG-150 Distearate, available under the tradename REWOPAL 6000 DS from the company Evonik Industries, and Glycol Distearate, available for example under the trade names Genapol® PMS from the company Clariant and Cutina® EGMS from the company BASF.
  • the pearlescent agents are preferably contained in the shampoo composition of the invention in a concentration from 0.01 % to 2% by weight, preferably from 0.02% to 1 % by weight, calculated to the total weight of the composition.
  • anti-dandruff active agents are anti-dandruff active agents. These anti-dandruff active agents may be used in an amount from 0.025% to 7.5% by weight, preferably from 0.05% to 4% by weight, calculated to the total weight of the composition.
  • Suitable anti-dandruff active agents can be selected from piroctone olamine, climbazole, zinc pyrithione, ketoconazoles, sulfur, selenium sulfide, tar preparations, undecenoic acid derivatives, burdock extracts, poplar extracts, stinging nettle extracts, walnut shell extracts, birch extracts and/or arnica extracts.
  • Particular preferred anti-dandruff active agents are selected from the list climbazole, zinc pyrithione and piroctone olamine.
  • the shampoo composition of the invention may further comprise one or more preservatives.
  • Suitable preservatives to be comprised in the composition of the invention are, for example, sodium benzoate, sodium salicylate, phenoxyethanol, ethylhexyglycerin methylparaben, ethylparaben, benzyl alcohol, methylisothiazolinone, methylchloroisothiazolinone and/or DMDM hydantoin.
  • sodium benzoate and/or sodium salicylate is preferred.
  • inventive composition is filled and kept in a jar, a bottle, a squeeze bottle, a pump spray or an aerosol can. Further objectives of the present invention are:
  • Method of washing human hair comprising the steps of applying the composition according to the invention to wet hair and rinsing the composition off the hair with water within a time of 5 seconds to 2 minute after application.
  • the PPG-alkyl ether may interact or it forms a complex with the cationic conditioning polymer and/or the one anionic, amphoteric and/or non-ionic surfactant, which results in enhanced deposition of the conditioning compounds onto the hair.
  • the PPG-alkyl ether may interact or it forms a complex with the cationic conditioning polymer and/or the one anionic, amphoteric and/or non-ionic surfactant, which results in enhanced deposition of the conditioning compounds onto the hair.
  • hair refers solely to human hair on the scalp.
  • compositions of this invention should illustrate the compositions of this invention, without, however, intending to limit the invention to these examples.
  • the numerical values in the examples are percentages by weight, based on the total weight of the preparations.
  • the compositions are prepared by combining all components and mixing and/or stirring the mixture. Examples 1-8
  • the amount of foam and the bubble size of the foam was evaluated upon use of the composition on wet hair, while washing. To evaluate the amount of foam, the
  • hairdressers needed to decide in each test whether the amount of foam, which builds up upon washing, is high, average or less.
  • To evaluate the bubble size the distribution of the big, medium and small bubbles was evaluated in percent of the total bubbles, which appeared upon washing the hair.
  • the hair dresser evaluated the structure of the wet hair dresses. For these three evaluations a score range was used from 1 being bad to 10 being very good.
  • the hair dresser were asked how they would describe the hair after the use of the shampoo. They had the choice between the following statements: The hair feels rough, hair feels squeaky, the hair feels supple, the hair feels waxy and the hair feels coated. Per shampoo composition the hairdressers could distribute points, to which statements they agree.
  • the shampoo composition according to the invention allows to form a larger amount of foam and, additionally, the distribution of the bubble size of the foam is shifted towards larger bubbles. Even more outstanding is the performance of the shampoo composition according to the invention regarding the detangling and the combability of the hair. For both parameters a significant improvement was found. Furthermore, the structure of the hair tresses was found to be improved. Following the statements of the hair dressers, it can be noted that after use the shampoo according to the invention a coating of the hair is achieved, whereby the hair feels supple. Thus, an improved deposition was achieved.

Abstract

The present invention belongs to the cosmetic field and relates to a silicone-free shampoo composition for human hair comprising at least one PPG-alkyl ether, at least one cationic conditioning polymer and at least one anionic, amphoteric and/or non-ionic surfactant. The silicone-free shampoo composition of the present invention allows for a significant improvement of the detangling and/or combability of the hair, after use of the shampoo composition. At the same time, the shampoo composition of the present invention allows for an improved foam formation during washing the hair.

Description

Silicone-free shampoo composition
Technical field
The present invention belongs to the cosmetic field and relates to a silicone-free shampoo composition for human hair comprising at least one PPG-alkyl ether, at least one cationic conditioning polymer and at least one anionic, amphoteric and/or non-ionic surfactant.
Technical background
A beautiful and attractive appearance is a desire for many people. One of the main aspects, which defines such a positive appearance, is the look of the hair of the head. In order to take care on the hair customers usually apply a number of cosmetic products on a daily basis. Typically, this starts with washing the hair using a commercial shampoo product. Such shampoos contain surfactants which remove excess of soil or sebum from the hair. The surfactants are usually chosen from anionic, cationic, amphoteric and non-ionic surfactants. In most cases anionic surfactants are contained in the shampoo compositions, as they promote the formation of foam and ensure an effective removal of dirt, soil and/or sebum.
However, it is a well-known fact that commercial shampoo composition often remove lipids and proteins from the hair and the scalp, as well. This may lead to a dry scalp or it may be found that the structure of the hair may be negatively affected such that the shampoo product leaves the hair in dry and unkempt condition. As consequence the hair might be difficult to detangled and/or difficult to comb after rinsing the shampoo off the hair. Furthermore, the hair often feels squeaky and rough, for example, while gliding with the fingers along the hair the fingers may feel some resistance.
Generally, there are two ways to improve the detangling and the combability of the hair. Firstly, a leave-in or rinse-off conditioning composition may be applied after washing to the hair. Such a composition usually contains as surfactants solely cationic surfactants, which, in difference to other surfactants, do not allow for an effective cleaning of the hair. Instead, the hydrophilic ends of the cationic surfactants may bind to the creatine of the hair and the hydrophobic ends of the cationic surfactants may act as protective a layer for the hair. Furthermore, such conditioning compositions often contain for example film-forming polymers, moisturizers, hydrolyzed proteins and/or antistatic agents. Nevertheless, the use of a leave-in or rinse-off conditioner requires a second, time consuming step after washing the hair. Therefore, it is desirable to provide a composition which cleans and conditions the hair simultaneously. The second way to improve the detangling and the combability of the hair can be achieved by applying a shampoo composition which contains silicone components. Silicones are excellent conditioner which may be effectively deposited onto the hair even while being implemented in a shampoo composition containing anionic, amphoteric and/or non-ionic surfactants. Thereby, the silicones provide improved compatibility, feel, softness, and lessening frizz. However, it is a well-known fact that silicone residues can build-up on the hair. As a result, these silicone residues weigh down the hair, which reduces the hair volume. In particular, this can become an issue for consumers with fine hair wishing to build-up volume. Therefore, it remains desirable to provide alternative silicone-free compositions, which provide conditioning effects to the hair while reducing the effect of the hair being weighed down by silicone-residues.
It is often found that silicone-free shampoo composition have a number of disadvantages. In particular, those shampoos often do not allow for an effective deposition of conditioning polymers onto the hair in the presence of anionic surfactants. Therefore, it is hardly possible to provide a silicone-free shampoo composition which allows to clean the hair and to apply a protective conditioning layer simultaneously. Additionally, silicone-free shampoo compositions do often not allow a sufficiently easy detangling while combing the wet hair after washing and/or the combability of the hair is adversely affected after washing. Furthermore, many silicone-free shampoo compositions do not build-up a large amount of foam while washing the hair, wherein insufficiently small foam-bubbles are formed.
Summary of Invention
The objective of the present invention is therefore, to provide a silicone-free shampoo composition, which allows for an effective cleaning of the hair and which does not exhibit the disadvantages discussed above.
WO 2014077826 A1 discloses a cleansing composition containing anionic surfactants and alkoxylated alkyl ether. The document does not disclose compositions containing cationic conditioning polymers. Therefore, the document does not direct the skilled person to the objective of the present invention.
The applicant has surprisingly discovered that a silicone-free shampoo composition comprising at least one PPG-alkyI ether, at least one cationic conditioning polymer and at least one anionic, amphoteric and/or non-ionic surfactant allows for a significant improved deposition of conditioning polymers onto the hair. Moreover, it was surprisingly found that such a silicone-free shampoo composition allows for a significant improvement of the detangling and/or combability of the hair, after use of the shampoo composition. At the same time, shampoo compositions according to the invention allow for an improved foam formation during washing the hair.
The shampoo composition of the present invention comprises at least one PPG-alkyl ether as defined by formula (I)
Figure imgf000004_0001
wherein /' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40. The term "PPG" stands for polypropylene.
Preferred PPG-alkyl ethers are defined by / being an integer in the range from 4 to 8 and j being an integer in the range from 2 to 15. More preferred is the PPG-14 butyl ether. PPG-14 butyl ether is commercially marketed under the trade name UCON Fluid AP by the company Dow Chemical.
According to the invention the PPG-alkyl ethers may be present in the composition of the present invention in a total concentration from 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight, calculated to the total weight of the composition.
In preferred embodiments of the present invention only PPG-14 butyl ether is included as PPG-alkyl ether. In these embodiments, the total concentration of PPG-14 butyl ether is in the range from 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight, calculated to the total weight of the composition, and no further PPG-14 butyl ether is contained in the composition.
The shampoo composition of the present invention comprises at least one cationic conditioning polymer. In the sense of the present invention the expression "cationic polymer" denotes polymers containing cationic groups and/or groups, which are ionizable into cationic groups. Due to the reason that the shampoo composition according to the present invention is a silicone free composition, the cationic conditioning polymer included in the composition does not include a silicone atom. According to the invention the cationic conditioning polymers are chosen from
(1 ) cationic guar gums. This group of cationic conditioning polymers includes cationic guar derivatives and hydrophobically modified cationic guar derivatives. Preferred cationic guar derivatives are cationic hydroxyl (Ci to C4)-alkyl-Guar derivatives such as hydroxyethyltrimethylammonium-guar or hydroxypropyltimethylammonium-guar. Most preferred are cationic guar derivatives known under the CTFA designation Guar Hydroxypropyltrimonium Chloride. Such products are available under the trade names JAGUAR C13 S, JAGUAR C 15 and JAGUAR C 17 by the company Solvay.
(2) cationic celluloses. Examples of cationic celluloses which are in accordance with the invention are chosen among the cationic cellulose copolymers, cellulose ether derivatives comprising quaternary ammonium groups or the cellulose derivatives grafted with a water-soluble ammonium monomer. In particular, preferred are those cationic celluloses which comprise a polymeric quaternary ammonium salt formed by the reaction of hydroxyethyl cellulose with trimethyl ammonium substituted epoxide. For example, those preferred cationic celluloses are known under CTFA designation Polyquaternium-4, Polyquaternium-10 or Polyquaternium-67. Polyquaternium-10 is commercially available under the trade names UCARE Polymer JR-400, Conditioner P10 or CELQUAT® SC-240C Polymer.
(3) homopolymers and copolymers comprising at least one constituent of the polymeric chain defined by the formulas (N)-(V):
— CH,— -Q— — CH,— C— — CH,— -C~— CH2— C "
I I I I
o^=c o^=c o=c o^c i I I I
NH o N H o
I A I A I I
Figure imgf000005_0001
(II) (III) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical; R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical, whereby an alkyl group containing 1 to 6 carbon atoms is preferred;
R5 and R6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms, whereby the selection of methyl and/or ethyl groups is preferred;
Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms, preferably containing 2 or 3 carbon atoms, or represents a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide, such as chloride or bromide, or an anion derived from an inorganic or organic acid such as methosulphate anion.
In accordance to the invention the copolymers comprising at least one of the monomeric units specified above may further comprise co-monomers chosen from the group acrylic or methacrylic acid, esters of acrylic acid or methacrylic acid; acrylamides, methacrylamides, acrylamides and methacrylamides substituted on the nitrogen with alkylgroups containing 1 to 4 carbon atoms, diacetone acrylamides, vinyllactams, for example vinylcaprolactam or vinylpyrrolidone, and/or vinyl esters.
Typical polymers of this group are for example those, which are formed by the reaction of diethyl sulfate and a copolymer of vinylpyrrolidone and dialkylaminoalkyl acrylate or methacrylate such as the substances sold under the trade name GAFQUAT by the company Ashland. Typical examples are named GAFQUAT 755, GAFQUAT 755N or GAFQUAT 734. Further polymers of the group are known under the trade name Copolymer 845 or Copolymer 937, also available from the company Ashland. Another example of such a cationic conditioning Polymer is Polyquaternium- 47, which is marketed under the trade name Merquat 2001 Polymer by the company Lubrizol.
(4) copolymers which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone. Typical examples of those copolymers are marketed under the names Luviquat FC 905, Liviquat FC 550 and Luviquat FC 370 by the company BASF.
(5) homopolymers and copolymers comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII): — (CH2)k
Figure imgf000007_0001
(VI) (VII) wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion such as a halide (bromid, chloride), acetate, borate, citrate, tartrat, bisulphate, bisulphite, sulphate or phosphate.
It is preferred, if the structures of such cyclic units are therein characterized that the substituents Re and Rg represent independently of each other an alkyl group containing 1 to 4 carbon atoms. A typical cationic copolymer containing such cyclic units is known under the CTFA designation Polyquaternium-7, which is polymerized from acrylamide and dimethyldiallylammonium chloride. Polyquaternium-7 is commercially available under various trade names. Especially preferred are the products Merquat 550 Polymer marketed by the company Lubrizol and Salcare SC10 sold by the company BASF.
Preferred homopolymers of the structures specified above are for example known under the CTFA designation Polyquaternium-6, which is a polymeric quaternary ammonium salt of dimethyldiallylammonium chloride. Polyquaternium-6 is commercially available under the trade name Merquat 100 Polymer, which is sold by the company Lubrizol.
According to the invention the cationic conditioning polymers listed above may be present in the shampoo composition in a total concentration from 0.001 % to 10% by weight, preferably from 0.1 % to 5% by weight, and more preferably 0.2% to 2% by weight, calculated to the total weight of the composition. The cationic conditioning polymers contained in the shampoo composition of the invention are preferably chosen from the group Polyquaternium-4, Polyquaternium-6, Polyquaternium-10, Polyquaternium-47, Polyquaternium-67, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride and/or Guar Hydroxypropyltrimonium Chloride.
Preferred in particular are the cationic guar polymers which have a molecular weight (weight-average) from 1000 to 5000000, preferably from 100000 to 3000000 and a cationic charge density of at least 0.5 meq/g.
In the case Guar Hydroxypropyltrimonium Chloride is contained as cationic conditioning polymer, it is preferred if the concentration of Guar Hydroxypropyltrimonium Chloride is in the range from 0.05% to 0.2% by weight. And furthermore, in the case Guar Hydroxypropyltrimonium Chloride is contained as cationic conditioning polymer it is preferred if at least one cationic conditioning polymer selected from the group Polyquaternium-4, Polyquaternium-6, Polyquaternium-10, Polyquaternium-47 and Polyquaternium-67 is also contained in the composition.
According to the invention the anionic, amphoteric and/or non-ionic surfactants may be present in a total concentration from 4% to 40% by weight, calculated to the total weight of the composition.
Suitable anionic surfactants, which may be used in the shampoo composition according to the invention, include linear and branched fatty acids containing 8 to 30 carbon atoms; alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3" C+, in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; sulfonates of unsaturated fatty acids containing 8 to 24 carbon atoms and comprising 1 to 6 double bonds: ether carboxylic acids of the formula Rn-0-(CH2-CH20)n-CH2-COOH, in which Rii is a linear or branched, saturated or unsaturated alkyl group containing 8 to 30 carbon atoms and x is an integer in the range 0 or 16; acyl isethionates, acyl taurides or acyl sarcosides, each containing 8 to 24 carbon atoms in the acyl group; alpha-olefin sulfonates containing 8 to 24 carbon atoms; sulfosuccinic acid mono- and/or dialkyl esters containing 8 to 24 carbon atoms in the alkyl group and sulfosuccinic acid monoalkyi polyoxyethyl esters containing 8 to 24 carbon atoms in the alkyl group and 1 to 6 oxyethyl groups; esters of tartaric acid or citric acid with alcohols containing 8 to 22 carbon atoms, which are addition products of 2 to 15 molecules of ethylene oxide and/or propylene oxide; and/or alkyl and/or alkenyi ether phosphates of the formula (VIII):
O D+
(VIII)
wherein Ri2 represents an aliphatic radical containing 8 to 30 carbon atoms, R13 represents a hydrogen atom, an (OCH2-CH2)q-Ri2 group or D,
wherein q represents an integer in the range from 0 to 10, and D represents a Hydrogen, an alkali, alkaline-earth or an quaternary ammonium ion containing four alkyl groups, which contain independently of another 1 to 4 carbon atoms each.
The anionic surfactant is preferably selected from
(1 ) alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3" C+, in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
(2) sulfonates of unsaturated fatty acids containing 8 to 24 carbon atoms and comprising 1 to 6 double bonds.
Suitable, but non limiting examples of those preferred anionic surfactants are Sodium Laureth Sulfate and Sodium Lauryl Sulfate.
The concentration of the anionic surfactants in the shampoo composition is preferably in the range from 5% to 30% by weight, more preferably from 10% to 20% by weight, calculated to the total weight of the composition.
In order to provide a shampoo composition which is very sensitive and non-irritating for the scalp it is beneficial to add at least one amphoteric surfactant in a total concentration from 0.5% to 15% by weight, preferably from 1 % to 5% by weight and more preferably from 1 .5% to 4% by weight, calculated to the total weight of the composition.
The amphoteric surfactants are preferably chosen from the group alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulphobetaines (sultaines), alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amphopropionates, alkylamphoglycinates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates, wherein the alkyl and acyl groups contain from 8 to 19 carbon atoms. Typical examples of those groups include lauryl amine oxide, cocodimethyl sulphopropyl betaine, lauryl betaine, cocamidopropyl betaine and sodium cocoamphoacetate. Among those, cocamidopropyl betaine is chosen as the most preferred amphoteric surfactant.
Moreover, to support the cleansing properties, the shampoo composition according to the invention can contain one or more non-ionic surfactants in a concentration ranging from 0.3% to 15% by weight, preferably from 0.5% to 10% by weight, more preferably 1 % to 8% by weight, calculated to the total weight of the composition.
Suitable examples of non-ionic surfactants are condensation product of aliphatic primary or secondary, linear or branched chain alcohols or phenols containing from 8 to 18 carbon atoms with ethylene oxides comprising 6 to 30 ethylene oxide groups. Other suitable nonionic surfactants include mono- or di-alkyl aikanoiamides. Typical examples are coco mono- or di- ethanoiamide and coco mono-isopropanolamide. Other groups of non-ionic surfactants which may be included in the shampoo composition are alkyl polyglucosides or sorbitan fatty acid esters and addition products of ethylene oxide with sorbitan fatty acid esters such as for example polysorbates. Particularly preferred non-ionic surfactants are chosen from fatty acid aikanoiamides, such as coco mono- or di- ethanoiamide, known for example under the CTFA declaration Cocamide MEA and Cocamide DEA, and/or alky glycosides.
In a first preferred embodiment the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight of at least one PPG-alkyl ether defined by formula (I)
Figure imgf000010_0001
wherein /' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40; b) at least one cationic conditioning polymer chosen from
(1 ) cationic guar gums;
(2) cationic celluloses; (3) homopolymers and copolymers comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V):
R; R;
I
Chi— c CH c Chi— c— CH2— C-
I I I
o=c c o=c o=c
I I
o NH o
A I I I
Figure imgf000011_0001
wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid;
(4) copolymers, which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
(5) homopolymers and copolymers comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII):
(CH2)k
Figure imgf000011_0002
(VI) (VII)
wherein
k is either 0 or 1 ; / is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) at least one anionic surfactant.
Within this first embodiment it is particular preferred if the silicone-free shampoo composition comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.001 % to 10% by weight, preferably from 0.1 % to 5% by weight, and more preferably 0.2% to 2% by weight of at least one cationic conditioning polymer chosen from
(1 ) cationic guar gums;
(2) cationic celluloses;
(3) homopolymers and copolymers comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V):
Figure imgf000012_0001
NH o NH O
I A" I A"
Figure imgf000012_0002
(II) (III) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms; Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid;
(4) copolymers, which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
(5) homopolymers and copolymers comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII):
(CH (CH::)
/ \ / \
(CH2)k CR7 CR; (CH2)k CR7 CR
I i I I
CH, CH CH2 CH
\ \ /
N B" N
/ \
R* RQ I
(VI) (VII)
wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) at least one anionic surfactant.
Silicone-free Shampoo compositions which are most preferred within the first embodiment of the invention comprise - calculated relative to the total weight of the composition - a) 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.2% to 2% by weight of at least one cationic conditioning polymer chosen from
(1 ) cationic guar gums;
(2) cationic celluloses;
(3) homopolymers and copolymers comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V): R; R
Figure imgf000014_0001
o=c c o=c O
I
o NH
A I I
Figure imgf000014_0002
wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid;
(4) copolymers, which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
(5) homopolymers and copolymers comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII):
(CH2)k CR— CH—
I CH.
/
Figure imgf000014_0003
(VI) (VII)
wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ; R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) 5% to 30% by weight of at least one anionic surfactant, which is selected from
(1 ) alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3" C+, in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
(2) sulfonates of unsaturated fatty acids containing 8 to 24 carbon atoms and comprising 1 to 6 double bonds.
In a second preferred embodiment the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight of at least one P defined by formula (I)
QH,i+1 + 0— (I)
Figure imgf000015_0001
wherein /' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40;
b) at least one cationic guar gum and at least one cationic cellulose; and
c) at least one anionic surfactant.
Within this second embodiment it is particular preferred if the silicone-free shampoo composition comprises -calculated relative to the total weight of the composition- a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14-butyl ether;
b) 0.2% to 2% by weight of at least one cationic guar gums and at least one cationic cellulose; and
c) at least one anionic surfactant. Silicone-free Shampoo compositions which are most preferred within the second embodiment of the invention comprise -calculated relative to the total weight of the composition- a) 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.2% to 2% by weight of Guar Hydroxypropyltrimonium Chloride and Polyquaternium- 10; and
c) 5% to 30% by weight of at least one anionic surfactant, which is selected from
(1 ) alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3" C+, in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
(2) sulfonates of unsaturated fatty acids containing 8 to 24 carbon atoms and comprising 1 to 6 double bonds.
In a third preferred embodiment the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight rmula (I)
Figure imgf000016_0001
wherein /' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40;
b) at least one cationic guar gum and at least one cationic homopolymer or copolymer comprising at least one constituent of the polymeric chain defined by the following formulas (ll)-(V): R; R;
I I I
— CH2— C— CH C Chi— C— — CH2— C-
I I I I
o=c o=c o=c o=c
I I I I
NH o NH o
I A I I I
Figure imgf000017_0001
(II) (ill) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyi group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid; and
c) at least one anionic surfactant.
Within this third embodiment it is particular preferred if the silicone-free shampoo composition comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.001 % to 10% by weight, preferably from 0.1 % to 5% by weight, and more preferably 0.2% to 2% by weight of one cationic guar gum and at least one cationic homopolymer or copolymer comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V): R; R;
I I I
— CH2— C— CH C Chi— C— — CH2— C-
I I I I
o=c o=c o=c o=c
I I I I
NH o NH o
I A I I I
Figure imgf000018_0001
(II) (ill) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyi group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid; and
c) at least one anionic surfactant.
Silicone-free Shampoo compositions which are most preferred within the third embodiment of the invention comprise - calculated relative to the total weight of the composition - a) 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.2% to 2% by weight of one cationic guar gum and at least one cationic homopolymer or copolymer comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V): R; R;
I I I
— CH2— C— CH C Chi— C— — CH2— C-
I I I I
o=c o=c o=c o=c I I I I
NH o NH o
I A I I I
Figure imgf000019_0001
(II) (ill) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyi group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyi group containing 1 to 6 carbon atoms;
Z represents a linear or branched alkyi group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid; and
c) 5% to 30% by weight of at least one anionic surfactant, which is selected from
(1 ) alkyi sulfate and/or alkyi polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OS03" C+, in which R10 stands for a linear or branched, saturated or unsaturated alkyi group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
(2) sulfonates of unsaturated fatty acids containing 8 to 24 carbon atoms and comprising 1 to 6 double bonds.
In a fourth preferred embodiment the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight of at least one PPG-alkyl ether defined by formula (I)
Figure imgf000020_0001
wherein /' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40;
b) At least one cationic guar gum and at least one homo or copolymer comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII):
— (CH2)k
Figure imgf000020_0002
(VI) (VI!)
wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) at least one anionic surfactant.
Within this fourth embodiment it is particular preferred if the silicone-free shampoo composition comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.001 % to 10% by weight, preferably from 0.1 % to 5% by weight, and more preferably 0.2% to 2% by weight of at least one cationic guar gum and at least one homo or copolymer comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII): — (CH2)k
Figure imgf000021_0001
(VI) (VII) wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyi group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) at least one anionic surfactant.
Silicone-free Shampoo compositions which are most preferred within the fourth embodiment of the invention comprise - calculated relative to the total weight of the composition - a) 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.2% to 2% by weight of at least one cationic guar gum and at least one cationic Polymer selected from Polyquaternium-6 and Polyquaternium-7.
c) 5% to 30% by weight of at least one anionic surfactant, which is selected from
(1 ) alkyi sulfate and/or alkyi polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3" C+, in which Rw stands for a linear or branched, saturated or unsaturated alkyi group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
(2) sulfonates of unsaturated fatty acids containing 8 to 24 carbon atoms and comprising 1 to 6 double bonds.
In a fifth preferred embodiment the silicone-free shampoo composition according to the invention comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight of at least one PPG-alkyl ether defined by formula (I)
Figure imgf000022_0001
wherein /' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40; b) at least one cationic conditioning polymer chosen from
(1 ) cationic guar gums;
(2) cationic celluloses;
(3) homopolymers and copolymers comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V):
R1 R1 R1 R1 I I I
Π2™"-" C H, C — CH,— C— — CH,— C—
I I I
o=c o=c o=c 0=C
I I
o NH o
A I A I i z z z
Figure imgf000022_0002
(II) (III) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid; (4) copolymers, which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
(5) homopolymers and copolymers comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII):
Figure imgf000023_0001
(V!) (VII)
wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) 4% to 40% by weight of at least one anionic, amphoteric and/or non-ionic surfactant.
Within this fifth embodiment it is particular preferred if the silicone-free shampoo composition comprises - calculated relative to the total weight of the composition - a) 0.05% to 5% by weight, preferably 0.1 % to 4% by weight and more preferably 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.001 % to 10% by weight, preferably from 0.1 % to 5% by weight, and more preferably 0.2% to 2% by weight of at least one cationic conditioning polymer chosen from
(1 ) cationic guar gums;
(2) cationic celluloses;
(3) homopolymers and copolymers comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V): R; R
Figure imgf000024_0001
o=c c o=c O
I
o NH
A I I
Figure imgf000024_0002
wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid;
(4) copolymers, which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
(5) homopolymers and copolymers comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII):
(CH2)k CR— CH—
I CH.
/
Figure imgf000024_0003
(VI) (VII)
wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ; R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) 4% to 40% by weight of at least one anionic, amphoteric and/or non-ionic surfactant, wherein the concentration of the anionic surfactant is in the range from 5% to 30% by weight, more preferably from 10% to 20% by weight.
Silicone-free Shampoo compositions which are most preferred within the firth embodiment of the invention comprise - calculated relative to the total weight of the composition - a) 0.15% to 3% by weight PPG-14 butyl ether;
b) 0.2% to 2% by weight of at least one cationic conditioning polymer chosen from
(1 ) cationic guar gums;
(2) cationic celluloses;
(3) homopolymers and copolymers comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V):
R, R, R, R,
I I I I
^ CH2 ^C- - CH2-C- - CH2-C- - CH2-C - o=c o=c o=c o^c
I I I I
NH O N H O
I A I A I I
Figure imgf000025_0001
(l l ) (i l l ) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and R6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
Z represents a linear or branched alkyl group containing 1 to 6 carbon atoms; preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms; A represents a halide or an anion derived from an inorganic or organic acid;
(4) copolymers, which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
(5) homopolymers and copolymers comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII):
Figure imgf000026_0001
(VI) (VII)
wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) 4% to 40% by weight of at least one anionic, amphoteric and non-ionic surfactant, wherein the concentration of the anionic surfactant is in the range from 5% to 30% by weight, preferably from 10% to 20% by weight,
the concentration of the amphoteric surfactant is in the range from 0.5% to 15% by weight, preferably from 1 % to 5% by weight and more preferably from 1 .5% to 4% by weight, and
the concentration of the non-ionic surfactant is in the range from 0.3% to 15% by weight, preferably from 0.5% to 10% by weight, more preferably 1 % to 8% by weight.
The shampoo compositions according to the invention may also preferably comprise one or more cationic surfactants. Suitable cationic surfactants, which can be used in the shampoo compositions of the invention, are quaternary ammonium salts defined by the formula (IX)
Figure imgf000027_0001
(IX)
wherein Ru and Ris stand for a hydrogen atom or an alkyl chain containing from 1 to 4 carbon atoms which are optionally substituted with one or more hydroxyl groups,
and wherein Rw stands for a saturated or unsaturated, branched or non-branched alky chain containing 8 to 24 carbon atoms,
or Ri6 stands for Ri8CON(CH2)r group, wherein /½ is a saturated or unsaturated, branched or non-branched alkyl chain containing from 7 to 21 carbon atoms and r is an integer in the range from 1 to 4,
or Ri6 stands for Ri9COO(CH2)s group, wherein R19 stands for a saturated or unsaturated, branched or non-branched alkyl chain containing 7 to 21 carbon atoms and s is an integer in the range from 1 to 4,
and wherein Ru stands for a hydrogen atom or for a saturated or unsaturated, branched or non-branched alky chain containing from 8 to 24 carbon atoms,
or Ru stands for a Ri8CON(CH2)r or Ri9COO(CH2)s group, wherein R18, R19, r and s have the same meaning as above,
and E is an anion, preferably chloride or bromide.
Suitable but not limiting examples of above defined cationic surfactants are octyltrimethylammonium chloride, decyltrimethylammonium chloride, dodecyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, tetramethylammonium chloride, tetraethylammonium chloride, cetylpyridinium chloride, octyldimethylbenzylammonium chloride, decyldimethylbenzylammonium chloride, stearyldimethylbenzylammonium chloride, didodecyldimethylammonium chloride and dioctadecyldimethylammonium chloride.
The most preferred cationic surfactants to be contained in the compositions of the invention are cetyltrimethylammonium chloride and/or behenyltrimethylammonium chloride. Cetyltrimethylammonium chloride is available under the trade name VARISOFT 300 from the Fa. Evonik Industries or Dehyquart® A-CA from the Fa. BASF. Behenyltrimethylammonium chloride is commercially available under the trade name QUARTAMIN® AB from the Fa. Kao Chemicals. The cationic surfactants are preferably used in a concentration in the range from 0.1 % to 5% by weight, more preferably 0.2% to 3% by weight, calculated to the total weight of the composition.
Furthermore, it is beneficial to add non-ionic or amphoteric conditioning agents to the shampoo composition, for example, protein and polyprotein hydrolysates, such as hydrolyzed silk, hydrolyzed wheat protein and/or hydrolyzed collagen.
Another class of beneficial non-ionic conditioning agents, which may be included in the shampoo composition of the invention, are fatty alcohols comprising 8 to 22 carbon atoms, preferably 14 to 18 carbon atoms. Among those preferred fatty alcohols linear, saturated alcohols such as cetyl alcohol, stearyl alcohol and/or mixtures thereof are the most preferred ones.
Cetyl alcohol is commercially available under the trade name Lanette® 16 from the company BASF. Similarly, stearyl alcohol can be purchased under the trade name Lanette® 18 from the company BASF. Mixtures of cetyl alcohol and stearyl alcohol can also be obtained from the company BASF. The trade name of the mixture is called Lanette® O.
The fatty alcohols are preferably contained in a total concentration from 0.01 % to 5% by weight, more preferably from 0.1 % to 2% by weight, calculated to the total weight of the composition.
Another class of non-ionic conditioning agents, which may be comprised in the shampoo composition of the invention, are water-soluble, non-ionic cellulose polymers.
The term "water-soluble" refers to any material that is sufficiently soluble in water to form a clear solution to the naked eye at a concentration of 1.0% or more by weight of the material in water at 25°C.
Suitable water-soluble, non-ionic cellulose polymers may be chosen from the group methylcellulose, ethylcellulose, hydroxyethyl ethylcellulose, methyl ethylcellulose, hydroxypropylcellulose and/or hydroxypropyl methylcellulose.
The water-soluble, nonionic cellulose polymer may generally be present in the shampoo composition of the invention at concentrations ranging from 0.01 to 2%, preferably from 0.02 to 0.5% by weight, calculated to the total weight of the composition. In the case these water-soluble, non-ionic cellulose polymers are contained in the composition of the invention, the hair feels extraordinarily smooth after use of the inventive shampoo composition.
The composition of the invention may further comprise one or more rheology modifiers, which do not contain a cationic group. These rheology modifiers can be selected from polyacrylic acids, cross-linked polymers of acrylic acid or methacrylic acid, copolymers of acrylic or methacrylic acid with hydrophobic monomers, copolymers of carboxylic acid- containing monomers and acrylic esters, and cross-linked copolymers of acrylic acid and acrylate esters, with the provision that these polymers do not contain a cationic group. Polymers of acrylic acid cross-linked with a poly-functional agent may also be used; they are commercially available as Carbopol 980, Carbopol Ultrez 10 polymer and Carbopol Aqua SF- 1 polymer and can be purchased from the company Lubrizol. Examples of a suitable copolymers comprising carboxylic acid containing monomers and acrylic acid esters monomers are Carbopol 1342 polymer and Pemulen TR-1 , also available from the company Lubrizol. Generally preferred are those rheology modifier, which are known under the CTFA declaration Carbomer and Acrylates/CI O-30 Alkyl Acrylate Crosspolymer.
The preferred rheology modifier listed above may be present in compositions of the invention at a concentration from 0.1 % to 6% by weight, preferably from 0.5% to 4% by weight, calculated to the total weight of the composition.
In order to further improve the conditioning capabilities of the shampoo, the shampoo composition can additionally comprise at least one vegetable and/or fruit oil in a total concentration from 0.01 % to 5% by weight, preferably from 0.1 % to 4.5% by weight, calculated to the total weight of the composition. Preferred vegetable or fruit oils, which may be comprised in the composition, are walnut oil, bamboo oil, peach kernel oil, grape seed oil, apricot kernel oil, avocado oil, tea tree oil, soybean oil, sesame oil, sunflower oil, tsubaki oil, evening primrose oil, rice bran oil, palm kernel oil, mango kernel oil, lady's smock oil, thistle oil, coconut oil, (sweet) almond oil, macadamia nut oil, amaranth seed oil, argan oil, olive oil, wheatgerm oil, pumpkin seed oil, hazelnut oil, mallow oil, safflower oil, canola oil, sasanqua oil, jojoba oil, rambutan oil, cocoa butter, shea butter and/or mixtures of these oils.
Additionally citric acid or lactic acid may be added to the composition of the invention to adjust the pH value. If needed, sodium hydroxide may also be contained for pH-adjustments. The pH value of the composition is in the range from 3.0 to 6.9, preferably from 3.5 to 6.5. Additionally, the shampoo composition of the invention may comprise water in a concentration of more than 50% by weight, preferably more than 65% by weight, calculated to the total weight of the composition.
In order to provide a visually attractive product the shampoo composition of the invention may further comprise pearlescent agents such as glycol distearic acid esters, Ce- C30 fatty acid monoglycol esters and/or mica pigments coated with titanium dioxide.
Preferred pearlescent agents, which may be comprised in the shampoo composition according to the invention, are PEG-150 Distearate, available under the tradename REWOPAL 6000 DS from the company Evonik Industries, and Glycol Distearate, available for example under the trade names Genapol® PMS from the company Clariant and Cutina® EGMS from the company BASF. The pearlescent agents are preferably contained in the shampoo composition of the invention in a concentration from 0.01 % to 2% by weight, preferably from 0.02% to 1 % by weight, calculated to the total weight of the composition.
Further active ingredients, which may be included in the shampoo composition of the invention, are anti-dandruff active agents. These anti-dandruff active agents may be used in an amount from 0.025% to 7.5% by weight, preferably from 0.05% to 4% by weight, calculated to the total weight of the composition. Suitable anti-dandruff active agents can be selected from piroctone olamine, climbazole, zinc pyrithione, ketoconazoles, sulfur, selenium sulfide, tar preparations, undecenoic acid derivatives, burdock extracts, poplar extracts, stinging nettle extracts, walnut shell extracts, birch extracts and/or arnica extracts. Particular preferred anti-dandruff active agents are selected from the list climbazole, zinc pyrithione and piroctone olamine.
The shampoo composition of the invention may further comprise one or more preservatives. Suitable preservatives to be comprised in the composition of the invention are, for example, sodium benzoate, sodium salicylate, phenoxyethanol, ethylhexyglycerin methylparaben, ethylparaben, benzyl alcohol, methylisothiazolinone, methylchloroisothiazolinone and/or DMDM hydantoin. The use of sodium benzoate and/or sodium salicylate is preferred.
It is further advantageous if the inventive composition is filled and kept in a jar, a bottle, a squeeze bottle, a pump spray or an aerosol can. Further objectives of the present invention are:
The use of a shampoo composition according to the invention for cleaning hair and scalp.
Use of a shampoo composition according to the invention to deposit cationic conditioning polymers onto the hair.
Method of preparing a shampoo composition according to the invention, wherein the individual components are combined and stirred together.
Method of washing human hair, comprising the steps of applying the composition according to the invention to wet hair and rinsing the composition off the hair with water within a time of 5 seconds to 2 minute after application.
Without being limited to the theory, the PPG-alkyl ether may interact or it forms a complex with the cationic conditioning polymer and/or the one anionic, amphoteric and/or non-ionic surfactant, which results in enhanced deposition of the conditioning compounds onto the hair. Therewith, it becomes surprisingly possible to improve the detangling and/or the combability of the hair without the use of silicone components.
The term "hair" as used throughout the description refers solely to human hair on the scalp.
It was surprisingly found that upon washing the hair with the composition of the present invention, improved foam properties are achieved. Furthermore, after rinsing the shampoo composition of the present invention with water off the hair, the combability of the hair is significantly improved. Additionally, the hair is far easier to detangle while combing and a better deposition of conditioning polymers is observed, improving the coating of the hair without the use of silicones.
Examples
The following examples should illustrate the compositions of this invention, without, however, intending to limit the invention to these examples. The numerical values in the examples are percentages by weight, based on the total weight of the preparations. The compositions are prepared by combining all components and mixing and/or stirring the mixture. Examples 1-8
Shampoo compositions
Figure imgf000032_0001
Vitis Vinifera 0.5 (Grape) Seed Oil
Piroctone 0.4 Olamine
Com = Comparative example, not according to the invention
Inv = Inventive example, according to the invention
Examples 9-16
Shampoo compositions
Figure imgf000033_0001
monium Chloride
Parfum 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Cocamide MEA 0.6 1.0 1.5 1 .25 1 .2 0.8 0.9
Lauryl Glucoside 2 1 1.5 2 1.5 0.5 3
Carbomer 0.3 0.3
Acrylates/C 10-30 0.2 0.4
Alkyl Acrylate
Crosspolymer
Hydroxypropyl 0.05 0.1 0.04 0.08 0.05
methylcellulose
Hydroxyethyl 0.05 0.02 ethylcellulose
Olea Europaea 0.2 0.5 0.1 0.1 0.5
(Olive) Fruit
Oil
Vitis Vinifera 0.2 0.1 0.25
(Grape) Seed Oil
Climbazole 0.3 0.2 0.25
Zinc Pyrithione 0.4 0.5 0.2
Com = Comparative example, not according to the invention
Inv = Inventive example, according to the invention
A study was carried out in order to evaluate the properties of the inventive composition Ex.2 in comparison to the composition Ex.1 , which is not in accordance with the invention. The assessment was carried out by trained hairdressers, who evaluated the state of the hair and the shampoo properties. The test was carried out using hair tresses of Asian black hair.
Firstly, the amount of foam and the bubble size of the foam was evaluated upon use of the composition on wet hair, while washing. To evaluate the amount of foam, the
hairdressers needed to decide in each test whether the amount of foam, which builds up upon washing, is high, average or less. To evaluate the bubble size the distribution of the big, medium and small bubbles was evaluated in percent of the total bubbles, which appeared upon washing the hair. After rinsing the shampoo off the hair with water, the detangling and the combability of the hair while combing were evaluated by the hair dresser. Furthermore, the hair dresser evaluated the structure of the wet hair dresses. For these three evaluations a score range was used from 1 being bad to 10 being very good.
Finally, the hair dresser were asked how they would describe the hair after the use of the shampoo. They had the choice between the following statements: The hair feels rough, hair feels squeaky, the hair feels supple, the hair feels waxy and the hair feels coated. Per shampoo composition the hairdressers could distribute points, to which statements they agree.
All the results are presented in the following Table:
Figure imgf000035_0001
Analyzing the results presented in the table above, it was found that the shampoo composition according to the invention allows to form a larger amount of foam and, additionally, the distribution of the bubble size of the foam is shifted towards larger bubbles. Even more outstanding is the performance of the shampoo composition according to the invention regarding the detangling and the combability of the hair. For both parameters a significant improvement was found. Furthermore, the structure of the hair tresses was found to be improved. Following the statements of the hair dressers, it can be noted that after use the shampoo according to the invention a coating of the hair is achieved, whereby the hair feels supple. Thus, an improved deposition was achieved.

Claims

Claims
1 . Silicone-free shampoo composition comprising
a) at least one PPG-alkyl ether defined by formula (I)
Figure imgf000037_0001
wherein /' is an integer in the range from 1 to 12, and j is an integer in the range from 2 to 40;
b) at least one cationic conditioning polymer chosen from
(1 ) cationic guar gums;
(2) cationic celluloses;
(3) homopolymers and copolymers comprising at least one constituent of the polymeric chain defined by the following formulas (N)-(V):
R, R1 R1
! I
~~ GH "™-~ C - ~ ~ CH -C - CH,— -C— — CH— C—
I
o=c 0 ^=0 o=c o=c I I I
I I I I
NH 0 NH o
I A I A" I
Figure imgf000037_0002
(II) (111) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical;
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms;
Ζ represents a linear or branched alkyl group containing 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms, or a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic acid; (4) copolymers, which are quaternary ammonium salts formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone;
(5) homopolymers and copolymers comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII):
(CH2)K
Figure imgf000038_0001
(VI) (VII) wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing 1 to 5 carbon atoms; and
B is an anion; and
c) at least one anionic, amphoteric and/or non-ionic surfactant.
2. Shampoo composition according to claim 1 characterized in that the total concentration of the PPG-alkyI ether is 0.05% to 5% by weight, calculated to the total weight of the composition.
3. Shampoo composition according to claim 2 characterized in that the total concentration of the PPG-alkyI ether is 0.1 % to 4% by weight, calculated to the total weight of the composition.
4. Shampoo composition according to claim 3 characterized in that the total concentration of the PPG-alkyI ether is 0.15% to 3% by weight, calculated to the total weight of the composition.
5. Shampoo composition according to any of the claims 1 to 4 characterized in that the PPG-alkyl ether is defined by / being an integer in the range from 4 to 8 and j being an integer in the range from 2 to 15.
6. Shampoo composition according to claim 5 characterized in that the PPG- alkyl ether is PPG-14 butyl ether.
7. Shampoo composition according to any of the claims 1 to 6 characterized in that the total concentration of the cationic conditioning polymers is 0.001 % to 10% by weight, calculated to the total weight of the composition.
8. Shampoo composition according to claim 7 characterized in that the total concentration of the cationic conditioning polymers is 0.1 % to 5% by weight, calculated to the total weight of the composition.
9. Shampoo composition according to claim 8 characterized in that the total concentration of the cationic conditioning polymers is 0.2% to 2% by weight, calculated to the total weight of the composition.
10. Shampoo composition according to any of the claims 1 to 9 characterized that the composition contains at least one cationic guar gum.
1 1. Shampoo composition according to claim 10 characterized in that the cationic guar gum is Guar Hydroxypropyltrimonium Chloride.
12. Shampoo composition according to claim 1 1 characterized in that the concentration of the Guar Hydroxypropyltrimonium Chloride is in the range from 0.05% to 0.2% by weight, calculated to the total weight of the composition.
13. Shampoo composition according to claim 12 characterized in that in addition to the Guar Hydroxypropyltrimonium Chloride at least one cationic conditioning polymer selected from the group Polyquaternium-4, Polyquaternium-6, Polyquaternium-10, Polyquaternium-47 and Polyquaternium-67 is also contained in the composition.
14. Shampoo composition according to any of the claims 1 to 10 characterized that the composition contains at least one cationic cellulose.
15. Shampoo composition according to any of the claims 1 to 10 and 14 characterized that the composition contains at least one homopolymer or copolymer comprising at least one constituent of the polymeric chain defined by the formulas (N)-(V):
™™
Figure imgf000040_0001
(Π) (III) (IV) (V) wherein
Ri represents a hydrogen atom or CH3 radical;
R2, R3 and R4, which are identical or different, represent an alkyl group containing 1 to 18 carbon atoms or a benzyl radical,
R5 and f?6 represent independently of each other a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms,
Ζ represents a linear or branched alkyl group containing 1 to 6 carbon atoms or a hydroxyalkyl group containing 1 to 4 carbon atoms;
A represents a halide or an anion derived from an inorganic or organic.
16. Shampoo composition according to any of the claims 1 to 10 and 14 to 15 characterized that the composition contains at least one copolymer, which is a quaternary ammonium salt formed from a monomeric mixture comprising methylvinylimidazolium chloride and vinylpyrrolidone.
17. Shampoo composition according to any of the claims 1 to 10 and 14 to 16 characterized that the composition contains at least one homopolymer and/or copolymer comprising as constituent of the polymeric chain a cyclic unit, which is defined by of the formula (VI) or (VII): — (Chi)— R H
Figure imgf000041_0001
(VI) (VII) wherein
k is either 0 or 1 ;
/ is either 0 or 1 ;
with the provision that the sum of k and / is always equal to 1 ;
R7 represents either a hydrogen atom or a methyl radical;
Rs and R9 represent independently of each other an alkyl group containing 1 to 22 carbon atoms or a hydroxyalkyl group containing
1 to 5 carbon atoms; and
B is an anion
18. Shampoo composition according to any of the claims 1 to 17 characterized in that the cationic conditioning polymers are chosen from the group consisting of Polyquaternium-4, Polyquaternium-6, Polyquaternium-10, Polyquaternium-47, Polyquaternium-67, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride and/or Guar Hydroxypropyltrimonium Chloride.
19. Shampoo composition according to any of the claims 1 to 18 characterized in that the total concentration of the anionic, amphoteric and/or non-ionic surfactants is in the range from 4% to 40% by weight, calculated to the total weight of the composition.
20. Shampoo composition according to claim 19 characterized in that concentration of the anionic surfactants is in the range from 5% to 30% by weight, calculated to the total weight of the composition.
21. Shampoo composition according to claim 20 characterized in that concentration of the anionic surfactants is in the range from 10% to 20% by weight, calculated to the total weight of the composition.
22. Shampoo composition according to any of the claims 1 to 21 characterized in that the anionic surfactant is selected from
a) alkyl sulfate and/or alkyl polyglycol ether sulfate salts according to the formula Rio-(OCH2-CH2)m-OSC>3" C+, in which Rw stands for a linear or branched, saturated or unsaturated alkyl group containing 8 to 24 carbon atoms, m stands for an integer in the range from 0 to 12, and C stands for an alkali, alkaline-earth, ammonium or alkanolamine ion; and
b) sulfonates of unsaturated fatty acids containing 8 to 24 carbon atoms and comprising 1 to 6 double bonds.
23. Shampoo composition according to any of the claims 1 to 22 characterized in that the concentration of the amphoteric surfactant is in the range from 0.5% to 15% by weight calculated to the total weight of the composition.
24. Shampoo composition according to claim 23 characterized in that the concentration of the amphoteric surfactant is in the range from 1 % to 5% by weight calculated to the total weight of the composition.
25. Shampoo composition according to claim 24 characterized in that the concentration of the amphoteric surfactant is in the range from 1.5% to 4% by weight calculated to the total weight of the composition.
26. Shampoo composition according to any of the claims 1 to 25 characterized in that amphoteric surfactant is chosen from the group lauryl amine oxide, cocodimethyl sulphopropyl betaine, lauryl betaine, cocamidopropyl betaine and/or sodium cocoamphoacetate.
27. Shampoo composition according to any of the claims 1 to 26 characterized in that the concentration of the non-ionic surfactants is in the range from 0.3% to 15% by weight, calculated to the total weight of the composition.
28. Shampoo composition according to claim 27 characterized in that the concentration of the non-ionic surfactants is in the range from 0.5% to 10% by weight, calculated to the total weight of the composition.
29. Shampoo composition according to claim 28 characterized in that the concentration of the non-ionic surfactants is in the range from 1 % to 8% by weight, calculated to the total weight of the composition.
30. Shampoo composition according to any of the claims 1 to 29 characterized in that the non-ionic surfactants are chosen from fatty acid alkanolamides and/or alky glycosides.
31. Shampoo composition according to any of the claims 1 to 30 characterized in that the composition further contains fatty alcohols comprising 8 to 22 carbon atoms in a total concentration of 0.01 % to 5% by weight, calculated to the total weight of the composition.
32. Shampoo composition according to any of the claims 1 to 31 characterized in that the composition further contains at least one water-soluble, non-ionic cellulose polymer.
33. Shampoo composition according to any of the claims 1 to 32 characterized in that the composition further comprises one or more rheology modifier selected from be selected from polyacrylic acids, cross-linked polymers of acrylic acid or methacrylic acid, copolymers of acrylic or methacrylic acid with hydrophobic monomers, copolymers of carboxylic acid- containing monomers and acrylic esters, and cross- linked copolymers of acrylic acid and acrylate esters, with the provision that these polymers do not contain a cationic group.
34. Shampoo composition according to any of the claims 1 to 33 characterized in that the composition further comprises at least one vegetable and/or fruit oil.
35. Use of a composition according to any of the claims 1 to 34 for cleaning hair and scalp.
36. Use of a composition according to any of the claims 1 to 34 to deposit cationic conditioning polymers onto the hair.
37. Method of preparing a composition according to any of the claims 1 to 34, wherein the individual components are combined and stirred together.
38. Method of washing human hair, comprising the steps of applying the composition according to any of the claims 1 to 34 to wet hair and rinsing the composition off the hair with water within a time of 5 seconds to 2 minute after application.
PCT/EP2018/052984 2017-02-23 2018-02-07 Silicone-free shampoo composition WO2018153658A1 (en)

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US11213474B2 (en) 2018-10-11 2022-01-04 Henkel Ag & Co. Kgaa Cosmetic agent for temporary deformation of keratinic fibers using polymer combination II
GB2581571A (en) * 2018-12-18 2020-08-26 Henkel Ag & Co Kgaa Composition and method for temporarily reshaping keratinous fibres
GB2581571B (en) * 2018-12-18 2021-08-18 Henkel Ag & Co Kgaa Composition and method for temporarily reshaping keratinous fibres
CN115569101A (en) * 2022-10-26 2023-01-06 广东珍宝健康日用品科技有限公司 Multifunctional shampoo
CN115569101B (en) * 2022-10-26 2023-08-11 广东珍宝健康日用品科技有限公司 Multifunctional shampoo

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