GB2610052A - Stable, effective and skin-friendly antiperspirants - Google Patents

Stable, effective and skin-friendly antiperspirants Download PDF

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GB2610052A
GB2610052A GB2209731.5A GB202209731A GB2610052A GB 2610052 A GB2610052 A GB 2610052A GB 202209731 A GB202209731 A GB 202209731A GB 2610052 A GB2610052 A GB 2610052A
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composition according
composition
aluminium
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antiperspirant
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GB2610052B (en
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Döring Thomas
Kempen Brigitte
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Henkel AG and Co KGaA
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00Anti-perspirants or body deodorants
    • 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
    • A61K8/19Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/26Aluminium; Compounds 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
    • A61K8/19Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/28Zirconium; Compounds 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
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34Alcohols
    • A61K8/342Alcohols having more than seven atoms in an unbroken chain
    • 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
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37Esters of carboxylic acids
    • 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
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37Esters of carboxylic acids
    • A61K8/375Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
    • 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
    • A61K8/8105Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • A61K8/8111Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; 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
    • A61K8/92Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • 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

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Cosmetics (AREA)

Abstract

An antiperspirant cosmetic composition comprising, by weight of the composition (a) 10.0 to 75.0 wt% of at least one hydrogenated polyisobutene of the formula H-[CH2-C(CH3)2]n-H wherein n is 4 or 5; (b) 7.0 to 40.0 wt% of at least one aluminium salts antiperspirant active ingredient; and c) 10.0 to 45.0 wt% of at least one C8-16 triglyceride, is provided. The composition may further comprise 5.0 to 40.0 wt% PPG-14 butyl ether; 5 to 40 wt% of C12-15 alkyl benzoate and/or 5 to 40 wt% phenoxyethyl caprylate. The composition may further comprise 10 to 30 wt% of C16-20 fatty alcohol(s). The composition may further comprise 0.5 to 15 wt% of at least one cosmetic wax, preferably selected from myristoyl myristate, hydrogenated castor oil or mixtures thereof. The composition is preferably free of intentionally added silicone oil(s). The antiperspirant active ingredient may comprise at least one organic or inorganic aluminium salt or an organic or inorganic aluminium-zirconium salt; preferably an activated aluminium chlorohydrate. The C8-16 triglyceride may be caprylic/capric triglyceride. The antiperspirant compositions have high efficacy, good stability and a dry skin feel, and can be formulated free of silicone oils, which gives them better biodegradability.

Description

Intellectual Property Office Application No G132209731.5 RTM Date -14 December 2022 The following terms are registered trade marks and should be read as such wherever they occur in this document: Zorbax Myritol Intellectual Property Office is an operating name of the Patent Office www.gov.uk/ipo STABLE, EFFECTIVE AND SKIN-FRIENDLY ANTIPERSPIRANTS [1] The present invention relates to an antiperspirant cosmetic composition, which is stable, effective, very well tolerated by the skin, and can be formulated without silicone oils.
[2] Washing, cleaning and caring for one's own body is a basic human need and modern industry is constantly trying to meet these needs in a variety of ways. Particularly important for daily hygiene is the permanent elimination or at least reduction of body odour and underarm wetness. Numerous special deodorizing or antiperspirant body care products are known in the state of the art, which have been developed for use in body regions with a high density of sweat glands, especially in the armpit area. These are available in a wide variety of dosage forms, for example as powder, in stick form, as aerosol spray, pump spray, liquid and gel roll-on application, cream, gel and as impregnated flexible substrates (deodorants).
[3] State-of-the-art cosmetic antiperspirants contain, in addition to at least one oil or wax and a fragrance component or perfume, at least one antiperspirant compound, for example in the form of aluminum salts and/or aluminum-zirconium salts, in the form of halides and/or hydrcoghalides of aluminium and/or zirconium.
[4] Antiperspirants and deodorants usually contain silicone oils to create a good feeling on the skin. Decamethylcyclopentasiloxane is frequently used. Furthermore, corresponding silicone oils have the advantage that they are volatile so that they do not leave stains or smear films on the user's clothing. Volatile silicone oils such as cyclopentasiloxane exhibit optimal properties for solid antiperspirants, as they provide a very pleasant, dry skin feel and evaporate on the skin, so that the aluminium salt can be released from the non-polar matrix and first develop its effect in the interaction with sweat.
[5] The use of silicone oils in antiperspirants and deodorants is increasingly criticized because of their lack of biodegradability. There is therefore a need for formulations that are free of silicone oils. Until now, it has not been possible to replace cyclopentasiloxane without deteriorating its cosmetic properties, efficacy and stability.
[6] Many alternative emollients dissolve the fatty alcohol, which is often used as a structuring agent, in heat, so that these sticks become liquid too quickly and leak. Non-volatile oils hinder the release of aluminium chlorohydrate on the skin and therefore the effectiveness is reduced. Alternative emollients can lead to strong syneresis. The skin feel of non-volatile emollients is often very oily or even sticky.
[7] There is therefore a need for antiperspirants and deodorants that do not pollute the environment but at the same time have a satisfactory performance in terms of sweat reduction or reduction of body odour caused by sweat. In addition, a pleasant skin feeling should be achieved and the application of the agent to the skin should not soil the user's clothing.
[08] Surprisingly, it was found that an aluminium salt in combination with hydrogenated polyisobutene and (2) short-to medium-chain (C8-16) triglycerides provides antiperspirant products in stick, wax or cream form that are characterized by high efficacy, good stability and dry skin feel, and can be formulated free of silicone oils, thus exhibiting better biodegradability.
[09] The object of the invention is an antiperspirant cosmetic composition containing, in each case by weight of the ready-to-use composition a) 10.0 to 75.0 wt.% of at least one hydrogenated polyisobutene of the formula H-[CH2-C(CH3)2],,H with n = 4 or 5; b) 7.0 to 40.0 wt.% of at least one antiperspirant active ingredient selected from the group of aluminium salts, such as inorganic or organic salts of aluminium, aluminium-zirconium, or a mixture thereof; c) 10.0 to 45.0 wt.% of at least one C8-113 triglyceride.
[10] According to the invention, the term "antiperspirant" is understood to mean the decrease or reduction of perspiration of the body's sweat glands, or the reduction of body odour caused by sweat. This is a non-therapeutic product that can be used as part of daily personal hygiene.
[11] Where quantifies are given in this application, these are percentages by weight, unless explicitly stated otherwise. Unless otherwise stated, all quantities refer to the total weight of the composition according to the invention.
[12] According to the invention, it is preferred to use ingredient a) within narrower quantitative ranges. Compositions according to the invention are characterized in that they contain 10.0 to 75.0 wt%, preferably 15 to 60.0 wt.%, and more preferably 17.0 to 45.0 wt.% of at least one hydrogenated polyisobutene of the formula H-[CH2-C(C1-13)40-H with n = 4 or S. [13] In the case of technical mixtures containing both H4CH2-C(CH3)214-H and H-[CH2-C(CH3)2]5-H, the quantities given naturally refer to the total quantity, i.e., the quantity of both substances.
[14] The composition according to the invention has at least one aluminium salt. The at least one aluminium salt may be present, for example, in the form of aluminum salts and/or aluminum-zirconium salts, in the form of halides and/or hydroxyhalides. In the context of the present invention, the term "halides and/or hydroxyhalides" refers to chlorides, bromides and iodides of aluminium and aluminium-zirconium, as well as compounds of the formulae Al(OH)X, where X in the above formulae stands for a halide ion. These are, especially chlorides.
[15] Preferred antiperspirant cosmetic compositions are therefore characterized in that they contain at least one aluminium salt with a molar ratio of aluminium to chloride of from 1.26:1 to 1.90:1, preferably from 1,35:1 to 1.88:1, more preferably from 1.40:1 to 1.88:1, in particular from 1.65:1 to 1.88:1. The use of aluminium salts with the aforementioned molar ratios of aluminium to chloride has been shown to be particularly beneficial in terms of antiperspirant activity, reduced residue formation, and improved dryness sensation. Accordingly, compositions according to the invention comprising as antiperspirant active ingredient b) from 15.0 to 40.0 wt.%, preferably from 15.0 to 30.0 wt.% and more preferably from 15.0 to 21.0 wt.%, of at least one activated aluminium chlorohydrate having a molar ratio of aluminium to chlorine of 1.65: 1 to 2.25: 1, preferably 1.75: to 2.15: 1, preferably of 1.85: 1 to 2.12: 1, in particular of 1.91: 1 to 2.10: 1, are preferred embodiments of the present invention.
[16] Furthermore, it may be preferred according to the invention if the aluminium salts used have a high chloride content. Preferred antiperspirant cosmetic compositions are therefore characterized in that they contain at least one aluminium salt with a chloride content of from 5% to 35 wt. °/0, preferably from 10% to 30 wt. %, more preferably from 15% to 25 wt. %, from 17% to 20 wt. %, based on the total weight of the aluminium salt. The use of such salts leads to a high antiperspirant effect as well as to a reduced formation of residues compared to aluminium salts with different, especially lower, chloride contents. The chloride content of the aluminium salts can be determined, for example, by potentiometric titration against a silver nitrate solution as standard.
[17] It has been found to be advantageous in the context of the present invention if the antiperspirant cosmetic composition contains aluminium salts which are in activated form, i.e., have been activated with heat, and have a high proportion of polymeric aluminium complexes (hereinafter also referred to as Al complexes) with a low molecular weight. These polymeric Al complexes are formed by dissociation of aluminium salts into AI(III) aqua complexes and subsequent formation of polymeric Al complexes with hydroxide and oxide bridges between aluminium ions. However, polymeric Al complexes with a high molecular weight exhibit a lower antiperspirant effect than polymeric Al complexes with a low molecular weight.
[18] For example, the formation of polymeric AI complexes with low molecular weights can be determined by size exclusion chromatography. For this purpose, a column containing salinized porous silica microspheres with a particle size of 5 pm is used (for example, Agilent Zorbax PSM 60-S column, which is commercially available from Agilent). 0.02 M HCI is suitable as eluent. Upon analysis of the aluminium salts used according to the invention, 5 to 6 peaks are obtained, representing polymeric Al complexes with different molecular weight ranges. Peaks 1 and 2 represent polymeric Al complexes with an average molecular weight of 5,000 to 10,000 g/mol, peak three represents polymeric Al complexes with an average molecular weight of 2,000 to 4,000 g/mol, and peak 4 represents polymeric Al complexes with an average molecular weight of 500 to 1,500 g/mol. Finally, peaks 5 and 6, respectively, represent polymeric Al complexes with average molecular weights ranging from 135 to 270 g/mol.
[19] The area of the respective peak is directly proportional to the amount of polymeric Al complexes of the respective molecular weight range. Therefore, by comparing the area of one peak with the total area of all peaks obtained, the proportion of polymeric Al complexes of the corresponding molecular weight range in the total amount of polymeric Al complexes formed in the aluminium salt used according to the invention can be directly determined.
[20] Peak 4 contains the polymeric Al complexes of low molecular weight that are significant for the antiperspirant effect. Regarding the antiperspirant effect, it is therefore advantageous according to the invention if the area fraction of peak area 4 lies within a certain range compared to the total area of all peak areas 1 to 5 or 1 to 6 in the chromatogram. Preferred antiperspirant cosmetic compositions according to the invention are therefore characterized in that they contain at least one aluminium salt with a peak area ratio of peak 4 to the total area of all peaks in the chromatogram of from 40 to 80%, preferably from 42 to 75%, more preferably from 45 to 70%, from 50 to 65%. The peak area fraction of peak 4 with respect to the total area of all peaks in the chromatogram was determined by size exclusion chromatography using an Agilent Zorbax PSM 60S column with 0.02 M HCI as eluent. The total area of all peaks here refers to the sum of all peaks obtained for the aluminium salt in the chromatogram. The use of such aluminium salts has proven to be particularly advantageous in terms of good antiperspirant efficacy in combination with a silicone oil-free matrix!.
[21] At least one aluminium salt is preferably used in specific ranges of amounts. Therefore, according to the invention, it is advantageous if the cosmetic composition contains -based on its total weight -8 to 38 wt. %, preferably 10 to 35 wt. %, preferably 12 to 35 wt. %, preferably 15 to 30 wt. %, preferably 15 to 21 wt.% of at least one aluminium salt. The use of the total amounts of aluminium salt listed above results in excellent antiperspirant performance without causing incompatibilities with other ingredients of the cosmetic composition according to the invention or excessive residue formation on textiles.
[22] As a third essential ingredient, the compositions according to the invention contain 10.0 to 45.0 wt.%, preferably 13 to 40 wt.%, and preferably 15 to 35 wt.%, of at least one C8.16 triglyceride. It has been found to be particularly advantageous to use the triglyceride(s) within narrower ranges of amounts. In addition, particularly medium-chain triglycerides with C8_10 fat residues are especially preferred in terms of product haptics and performance.
[23] Preferred compositions according to the invention are therefore characterized by containing 10 to 45 wt.%, preferably 13 to 40 wt.% and preferably 15 to 35 wt.% of at least one Ca-i0 triglyceride.
[24] The pleasant product feels and performance characteristics of the products of the invention can be further enhanced using additional emollients. PPG-14 butyl ether, C12-15 alkyl benzoates, phenoxyethyl caprylates and any mixtures of these three compounds have proven particularly suitable here.
[25] Compositions preferred according to the invention therefore additionally contain one, two or three of these compounds in a total amount of 5.0 to 40.0 wt.%, preferably 10 to 37.5 wt.% and 15.0 to 35.0 wt.%.
[26] In view of the complexity involved in preparation, compositions containing only one of the compounds mentioned are particularly preferred. Accordingly, compositions according to the invention which additionally contain 5.0 to 40.0 wt.%, preferably 10 to 37.5 wt.% and 15.0 to 35.0 wt.% PPG-14 butyl ether are preferred.
[27] PPG-14 butyl ether is a propylene glycol ether of butyl alcohol, which can be characterized by the following formula: C41-19(0C(CH3)CH2)n0H, where n is 14. Due to the propylene glycol content, PPG-14 butyl ether is characterized by a moderately hydrophilic character, which is very suitable for dispersing hydrophilic ingredients of the cosmetic composition. PPG-14 butyl ether can also be used to disperse salts, such as the aluminium salt used in the invention, in the composition.
[28] Alternatively, compositions according to the invention which additionally contain 5.0 to 40.0 wt %, preferably 10 to 37.5 wt.% and 15.0 to 35.0 wt.% of C12-15 alkyl benzoate are preferred.
[29] As a further alternative, compositions according to the invention which additionally contain 5.0 to 40.0 wt.%, preferably 10 to 37.5 wt.% and 15.0 to 35.0 wt.% phenoxyethyl caprylates are preferred.
[30] The compositions according to the invention are preferably provided in solid form. Pens have proven to be suitable here, but creams or waxes can also be produced that can be applied by the consumer at the site of action by spreading.
[31] Fatty alcohols have proven to be particularly suitable as consistency and structure providers in such compositions. The combination according to the invention can provide heat-stable pins completely without the use of silicone oils, in which the emollients do not dissolve the structuring agent too much in the heat. The products are thus leak-proof but still pleasant to apply.
[32] Compositions preferred according to the invention therefore additionally contain 10.0 to 30.0 wt.%, preferably 15.0 to 27.5 wt.%, further preferably 17.5 to 25.0 wt.% and in 20.0 to 22.5 wt.% of C16-20 fatty alcohol(s).
[33] As mentioned, several times, the compositions according to the invention can be formulated free of volatile silicone oils without compromising performance or comfort. Preferred compositions are free of volatile silicone oils, preferably free of any silicone oils. In terms of the present invention, this means that the amount of volatile silicone oils or, in a preferred embodiment, any silicone oils does not exceed 0.1 wt. %. The amount of volatile silicone oils or, in a preferred embodiment, any silicone oils is thus in the range of 0 to 0.1 wt. %. If the cosmetic composition according to the invention contains volatile silicone oils or, in a preferred embodiment, volatile or non-volatile silicone oils, these have not been actively added to the composition but are present as an impurity of one of the metered components. Corresponding contamination cannot always be completely avoided.
[34] The term "volatile silicone oils" refers to compounds which have a vapor pressure of 2.66 Pa to 40,000 Pa at 20 °C and an ambient pressure of 1,013 hPa, preferably from 10 to 12,000 hPa, more preferably from 13 to 3,000 hPa, from 15 to 500 hPa.
[35] In summary, preferred compositions according to the invention are those containing less than 1 wt.%, preferably less than 0.5 wt.%, more preferably less than 0.1 wt.% and in less than 0.01 wt.% silicone oil(s), preferred compositions being free of intentionally added silicone oils.
[36] For the pen application, the addition of cosmetic waxes has proved to be preferable, as it further improves the product feel of this form of offer. Here, compositions according to the invention are preferred which additionally contain 0.5 to 15.0 wt.%, preferably 1.0 to 12.5 wt.%, further preferably 2.5 to 10 wt.% and 3.0 to 7.0 wt.% of cosmetic wax(es), preferred compositions containing myristyl myristate, hydrogenated castor oil or mixtures thereof.
[37] Depending on the desired application and form of application, the composition according to the invention may comprise further components, in particular excipients. These are preferably those selected from the group of solvents, perfume oils, emulsifiers, solubilizers, cosmetic oils, consistency agents, propellants, pH-adjusting agents, surfactants, chelafing agents, skin-cooling active ingredients, skin-caring active ingredients, waxes, preservatives, plant extracts, absorbers and mixtures of these excipients.
[38] The composition according to the invention not only has an antiperspirant effect but can also be used to mask odours. To this end, the composition preferably further comprises at least one fragrance. In the context of the present invention, "perfume" means substances with a molecular weight of 74 to 300 g/mol, which contain at least one osmophoric group in the molecule and have an odor and/or taste, i.e., which acanexcite the receptors of the hair cells of the olfactory system. Osmophoric groups are groups covalently bound to the molecular skeleton in the form of hydroxy groups, formyl groups, oxo groups, alkoxycarbonyl groups, nitrile groups, azide groups, etc. In the context of the present invention, perfume oils, perfumes or perfume oil components which are liquid at 20°C and 1013 hPa are understood. In this context, the fragrance is preferably present in the composition according to the invention in an amount of 0.001 wt. % to 10 wt. %, particularly 0.005 wt. % to 9 wt. %, further preferably 0.1 wt. % to 7 wt. %, particularly preferably 0.2 wt. % to 6 wt. % and especially 0.2 wt. % to 2 wt. %, in each case based on the total weight of the composition according to the invention.
[39] To further support the odour-reducing effect of the composition according to the invention, in a preferred embodiment the composition according to the invention further comprises one or more deodorant active ingredients. According to the invention, the use of certain deodorant active ingredients has proven to be particularly advantageous. It is therefore preferred according to the invention if the at least one deodorant active ingredient is selected from the group of (i) arylsulfatase inhibitors, R-glucuronidase inhibitors, aminoacylase inhibitors, esterase inhibitors, lipase inhibitors, lipoxigenase inhibitors and cystathionine R-Iyase inhibitors; (ii) a-monoalkylglycerol ethers with a branched or linear saturated or unsaturated, optionally hydroxylated C6-C22 alkyl radical, in particular a-(2-ethylhexyl)glycerol ethers, (iii) alcohols, in particular phenoxyethanol, benzylheptanol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, tropolone and butyloctanoic acid; (iv) germ-inhibiting perfume oils; (v) prebiofically active components; (vi) active ingredients that reduce the number of or inhibit the growth of skin germs from the group of staphylococci, coryne bacilli, anaerococci and micrococci that are involved in odour formation; (vii) active ingredients that reduce the number of or inhibit the growth of skin germs from the group of staphylococci, coryne bacilli, anaerococci and micrococci. (vii) Zinc and silver compounds, in particular zinc phenolsulfonate, zinc ricinoleate, bischloride(-1)-octahydroxy-pentazinc, zinc citrate and silver lactate; (viii) Sorbitan esters and lactones, in particular sorbitan caprylate and glucono-1,5-lactone; (ix) organohalogen compounds, especially triclosan, chlorhexidine and chlorhexidine gluconate; (x) benzalkonium halides, especially benzalkonium chloride and benzethonium chloride; (xi) quaternary ammonium compounds, especially cetylpyridinium chloride; (xii) antimicrobial carbonates, phosphates and sulphates, especially sodium bicarbonate, cocamidopropyl PG-dimonium chloride phosphates, disodium pyrophosphate and soya morpholinium ethosulphates; (xiii) !antibiotics; (xiv) aluminium and aluminium zirconium salts; (xv) bispyridines, especially octenidine; (xvi) anfimicrobially active acids, in particular caprylic hydroxamic acid, carnesolic acid, tartaric acid and 2-butyloctanoic acid; (xvii) polyglycerol esters, in particular polyglycery1-3 caprylates; (xviii) and mixtures thereof, in particular phenoxyethanol and/or caprylylglycol and/or 1,2-hexanediol and/or a-(2-ethylhexyl)glycerol ether and/or 2-butyloctanoic acid. The use of these active ingredients leads not only to a high and long-lasting perfuming and storage stability, but also to a high and long-lasting deodorizing effect.
[40] Another object of the present invention is the non-therapeutic use of the composition according to the invention for preventing and/or reducing body odour and/or perspiration. Non-therapeutic in the sense of the present invention means that the use is in the sense of daily personal hygiene, without a therapeutic approach.
[41] A still further object of the present invention is a non-therapeutic cosmetic method for preventing and/or reducing body odour and/or perspiration of the body, wherein a cosmetic composition as previously described is applied to the skin, in particular to the skin of the armpits, and is left on the skin of the armpits for at least 1 hour, preferably for at least 2 hours, preferably for at least 4 hours, in particular for at least 6 hours.
[42] Preferred embodiments of the present invention may be combined in any way, regardless of the embodiment or subject matter of the invention. Thus, preferred embodiments described for the composition apply mutafis mutandis to the use and method, and vice versa.
[43] In the following embodiments, the present invention is explained in a non-limiting manner. Examples: [44] Recipes V1, V2 and El were produced. For this purpose, the oil-soluble components were dissolved at 80°C and the aluminium chlorohydrate to be dispersed was added at 60°C. The pins were poured into plastic sleeves at a temperature of about 58°C and slowly cooled to room temperature. Syneresis was determined gravimetrically after storage at 45°C for 7 days. Sweat reduction was determined on test subjects in a sauna test. The test products were applied to defined areas on the back of 14 test subjects on 4 consecutive days. A control area opposite the respective test field remains untreated. Seventy-two hours after the last product application, perspiration was induced in a sauna at 80°C for 15 minutes. Beforehand, absorbent pads were placed on the areas, which were weighed at the end of the sweating phase to determine the amount of sweat.
V1 V2 El wt.% Hydrogenated polyisobutene - - 18.0 Hydrogenated farnesene - 18.0 -Caprylic/Capric Triglyceride 18.0 18.0 PPG-14 Butyl ether 18.0 18.0 18.0 Cyclopentasiloxanes 36.0 Stearyl alcohol 20.0 20.0 20.0 Hydrogenated castor oil 3.0 3.0 3.0 Myristyl myristate 2.0 2.0 2.0 Aluminium Chlorohydrate (Microdry 3115, Elementis) 20.0 20.0 20.0 Perfume 1.0 1.0 1.0 Sweat reduction 23 % 18 % 27% Synerese 0.29 1.59 0.1 g [45] Data in the table shows that when hydrogenated polyisobutene is combined with capitic/capric triglyceride (El), good sweat reduction is achieved, and the pencil shows no appreciable syneresis at 45°C. The favourable product properties known from the cyclomethiconebased pencils (V1) are thus achieved here.
[46] In contrast, the use of an alternative branched-chain hydrocarbon (hydrogenated farnesene, V2) in place of hydrogenated polyisobutene showed a significant loss of efficacy and stability although both oils are chemically similar.
More examples
E2 E3 E4 E5 E6 E7 E8 % (wt./w1) Hydrogenated polyisobutene 18.0 22.0 30.0 18.0 18.0 23.0 18.0 Myritol 318 18.0 22.0 10.0 18.0 18.0 23.0 18.0 PPG-14 Butyl ether 18.0 10.0 14.0 15.8 16.5 8.0 -C15-14 alkyl benzoate - - - - - - 18.0 Stearyl alcohol 20.0 20.0 20.0 20.0 20.0 20.0 20.0 Hydrogenated castor oil 3.0 3.0 3.0 3.0 3.0 3.0 3.0 Myristyl myristate 2.0 2.0 2.0 2.0 2.0 2.0 2.0 Aluminium Chlorohydrate (Microdry 3115, Elementis) - - 20.0 17.8 21.5 10.0 -Aluminium Zirconium Trichlorohydrex Gly (AAZG 531, Elementis) 20.0 20.0 10.0 20.0 Perfume 1.0 1.0 1.0 1.0 1.0 1.0 1.0

Claims (25)

  1. Patent claims: Antiperspirant cosmetic composition comprising, in each case by weight of the composition, a) about 10.0 to 75.0 wt.% of at least one hydrogenated polyisobutene of the formula H-[CH2-C(CH3)2]ii-H wherein n = 4 or 5; b) about 7.0 to 40.0 wt.% of at least one antiperspirant active ingredient selected from the group of aluminium salts; c) about 10.0 to 45.0 wt.% of at least one C8-16 triglyceride.
  2. Composition according to claim 1, characterized in that it further comprises about 5.0 to 40.0 wt.% PPG-14 butyl ether.
  3. 3. Composition according to claim 1, characterized in that it further comprises about 10 to 37.5 wt.% PPG-14 butyl ether.
  4. 4. Composition according to claim 1, characterized in that it further comprises about 15.0 to 35.0 wt.% PPG-14 butyl ether.
  5. Composition according to any one of claims 1 to 4, characterized in that it further comprises about 5.0 to 40.0 wt.% of C1215 12-15 alkyl benzoate.
  6. Composition according to any one of claims 1 to 4, characterized in that it further comprises about 10.0 to 37.5 wt.% of C12-15 alkyl benzoate.
  7. Composition according to any one of claims 1 to 4, characterized in that it further comprises about 15.0 to 35.0 wt.% of C12-15 alkyl benzoate.
  8. 8. Composition according to any one of claims 1 to 7, characterized in that it further comprises about 5.0 to 40.0 wt.% phenoxyethyl caprylate.
  9. Composition according to any one of claims 1 to 7, characterized in that it further comprises about 10.0 to 37.5 wt.% phenoxyethyl caprylate.
  10. 10. Composition according to any one of claims 1 to 7, characterized in that it further comprises about 15.0 to 35.0 wt.% phenoxyethyl caprylate.
  11. 11. Composition according to any one of claims Ito 10, characterized in that it comprises about 15 to 60.0 wt.% of the at least one hydrogenated polyisobutene a).
  12. 12. Composition according to any one of claims 1 to 10 characterized in that it comprises about 17 to 45 wt.% of the at least one hydrogenated polyisobutene a).
  13. 13. Composition according to any one of claims 1 to 12, characterized in that it comprises about 7.0 to 35.0 wt.% antiperspirant active ingredient b).
  14. 14. Composition according to any one of claims 1 to 12, characterized in that it comprises about 15.0 to 40.0 wt.% antiperspirant active ingredient b).
  15. 15. Composition according to any one of claims 1 to 12, characterized in that it comprises about 15.0 to 30.0 wt.% antiperspirant active ingredient b).
  16. 16. Composition according to any one of claims 1 to 12, characterized in that it comprises about 15.0 to 21.0 wt.% antiperspirant active ingredient b).
  17. 17. Composition according to any one of claims 1 to 16, wherein the at least one antiperspirant active ingredient b) comprises or consists of at least one organic or inorganic aluminium salt, organic or inorganic aluminium-zirconium salt, or mixtures thereof.
  18. 18. Composition according to any one of claims 1 to 17, wherein the at least one antiperspirant active ingredient b) comprises or consists of at least one activated aluminium chlorohydrate having a molar ratio of aluminium to chlorine of about 1.65: 1 to 2.25: 1.
  19. 19. Composition according to any one of claims 1 to 18, wherein component c) comprises or consists of at least one Cal o triglyceride.
  20. 20. Composition according to any one of claims 1 to 19, characterized in that it further comprises about 10.0 to 30.0 wt% of C16-20 fatty alcohol(s).
  21. 21. Composition according to any one of claims 1 to 20, characterized in that it contains less than about 1 wt% silicone oil(s)
  22. 22. Composition according to any one of claims 1 to 21, characterized in that the composition is free of intentionally added silicone oils.
  23. 23. Composition according to any of claims 1 to 22, characterized in that it further comprises about 0.5 to 15.0 wt% of at least one cosmetic wax.
  24. 24. Composition according to claim 23, wherein the at least one cosmetic wax comprises myristyl myristate, hydrogenated castor oil, or mixtures thereof.
  25. 25. A non-therapeutic cosmetic method for preventing and/or reducing body odour and/or perspiration of the body, wherein a cosmetic composition according to any one of claims 1 to 24 is applied to the skin and is left on the skin for at least 1 hour.
GB2209731.5A 2021-07-05 2022-07-01 Stable, effective and skin-friendly antiperspirants Active GB2610052B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002034212A2 (en) * 2000-10-20 2002-05-02 Colgate-Palmolive Company High oil clear emulsion with diene elastomer
US20020110570A1 (en) * 1998-09-18 2002-08-15 Heinrich Gers-Barlag Emulsifier-free finely disperse systems of the oil-in-water and water-in-oil type
US20040198998A1 (en) * 2003-04-04 2004-10-07 Marian Holerca Glycine-free antiperspirant salts with betaine for enhanced cosmetic products

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020110570A1 (en) * 1998-09-18 2002-08-15 Heinrich Gers-Barlag Emulsifier-free finely disperse systems of the oil-in-water and water-in-oil type
WO2002034212A2 (en) * 2000-10-20 2002-05-02 Colgate-Palmolive Company High oil clear emulsion with diene elastomer
US20040198998A1 (en) * 2003-04-04 2004-10-07 Marian Holerca Glycine-free antiperspirant salts with betaine for enhanced cosmetic products

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Mintel GNPD (mintel.com), Record ID 1948973, "24H Antiperspirant Deodorant Roll-On", Ales Groupe, December 2012 *

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FR3124700A1 (en) 2023-01-06
GB202209731D0 (en) 2022-08-17
GB2610052B (en) 2023-11-29

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