GB2615410A - Hair oil - Google Patents

Abstract

Hair oil comprising: (a) 0.5-20 wt% dimethiconol; (b) 1-65 wt% of a first silicone having a viscosity <50 cSt at 25 ºC; (c) 1-40 wt% of a second silicone having a viscosity >10,000 cSt at 25 ºC; and (d) 25-90 wt % solvent for components (a)-(c) selected from linear C6-C18 alkanes, ester oils, C2-C6 alcohols or mixtures thereof. Component (b) may be a polydialkylsiloxane having a viscosity <25 cSt at 25 ºC and (c) may be a polydialkylsiloxane having a viscosity >25,000 cSt at 25 ºC. (d) may be: undecane; dodecane; tridecane; tetradecane; pentadecane; esters of C6-C30 with C2-C30 alcohols, diols, or polyols; ethanol; propanol; isopropanol; butanol; hexanol; 1,2-propylene glycol; dipropylene glycol; glycerol; diglycerol or mixtures thereof. The hair oil may be free of cyclic silicones and water. Also disclosed is the used of the hair oil for care of hair fibres and a process of using the hair oil by applying the hair oil to the hair.

Description

HAIR OIL

Technical Field

[01] The present invention relates to hair oils comprising dimethiconol, a combination of specific silicones of different viscosities and at least one solvent for the silicones. The invention also relates to the use of the hair oil for hair care and to a process for hair care using the hair oil.

Background

[2] In addition to natural environmental influences, human hair is exposed to several other stresses, especially cosmetic ones. These stresses that strain the hair include, for example, the coloring of the hair as well as its deformation, for example, by a perm. Cosmetic hair care products are used to reduce the adverse effects of (environmental) influences affecting the hair structure, but also to maintain and improve the natural hair structure. An essential active ingredient in many of these cosmetic agents is organosilicon compounds, especially silicones such as trisiloxanes, which are noted for their skin-care properties.

[3] Hair treatments consist of quats, silicone oils, fatty acids, and polymers for the care performance. For a few years, hair cosmetics has developed hair oils, which are composed of silicone oils. In addition, the hair oils are used as leave on products, so the formulations remain in the hair without subsequent rinsing. This saves the consumer time and water. The hair oils have a beneficial sustainability from this point of view. The success of such hair oils on the market is large.

[4] Commercially available silicone compounds usually contain volatile cyclic silicones (cyclomethicones) as solvents or formulation aids. Cyclomethicones have recently been classified by the European Chemicals Agency as a substance of remarkably high concern, which is why significant amounts of cyclomethicones may no longer be used in cosmetic products.

[5] However, the development of cyclomethicone-free hair oils presents difficulties because silicone-based hair oils often have severe, unsatisfactory product hapfics (stickiness) and/or product appearance. They do not distribute satisfactorily in the hair and leave it greasy and heavy -especially after frequent use.

[6] In addition, from an ecological point of view, there is an increasing effort to replace silicones in commercial hair oils, at least in part, with raw materials that are accessible from natural sources and/or have better biodegradability.

[7] However, this should not affect the good care performance of the hair oils. The biggest difficulty in replacing silicone oils in hair oils is finding natural oils or natural raw materials that do not weigh down the hair and make it greasy.

[8] Document WO 2020/201410 disclosed hair care compositions containing dimethiconol and different dimethicones in addition to crosslinked alkanes.

[9] However, in terms of product feel and spread ability in the hair lengths, such hair care compositions were not always completely satisfactory. In addition, such hair oils consist exclusively of silicones, which means that the problem of weighing down hair, especially after regular use, remains to some extent.

[10] The task of the present invention was therefore to provide hair oils that eliminate the need for co-use of cyclic silicones, while still maintaining the performance range of silicone-containing formulations. The weighing down of the hair and the greasy condition of the treated hair, which often occur with the use of silicones, should be avoided. It has been the object of the present invention to provide hair oils of excellent product feel and appearance that ensure good incorporation into the hair so that their full conditioning potential can be realized.

Description

[11] According to the invention, the task is achieved by a hair oil that (based on the total weight of the hair oil) a) 0.5 -20 wt.% of at least one dimethiconol, b) 1 -65 wt.% of at least one first silicone having a viscosity < 50 cSt at 25°C, c) 1 -40 wt.% of at least one second silicone having a viscosity > 10,000 cSt at 25°C, d) 25 -90 wt.% of at least one solvent for one or more of components a), b), c), selected from - linear C6-C18 alkanes, - Ester oils, -C2-C6 alcohols or mixtures thereof.

[12] For the purposes of the present invention, dimethiconols a) are understood to mean compounds of the following formulae (I) or (II). R2 Ri 1 1

0-Si 0-Si-OH (I) 12 1 IR1 _x R1 R2 R2 RI2 R1 1 1 1 HO-Si 0-Si 0-Si 0-Si 0-S i-OH (II) 11 12 42 1, R' R2 Ri wherein in formulae (I) and (II) -R1 is hydrogen, a methyl radical, a C2 to C312 linear, saturated, or unsaturated hydrocarbon radical, a phenyl radical and/or an aryl radical, - R2 is hydrogen, a methyl radical, a C2 to C30 linear, saturated, or unsaturated hydrocarbon radical, a phenyl radical and/or an aryl radical, and - x, y, and z are each independently an integer from 0 to 50,000.

[13] Dimethiconols a) are also known as silicone gums and usually have a high molecular weight and viscosity. Its molecular weight is preferably >10,000 daltons, more preferably >50,000 daltons and especially >100,000 daltons. Furthermore, suitable dimethiconols according to the invention a) have a viscosity in the range of >10,000 cP, preferably >25,000 cP and >50,000 cP (in each case measured at 25°C using a glass capillary viscometer according to Dow Corning Corporate Test Method CTM 0004 of July 20, 1970.

[14] Dimethiconols suitable for use according to the invention are commercially available, for example, under the name Dowsil® 1515 Gum from Dow Corning.

[15] The hair oils according to the invention contain dimethiconol, the above-mentioned preferred dimethiconols, in a proportion by weight of 0.5 to 20 wt.% of the total weight of the hair oil. More preferred are weight fractions of the at least one dimethiconol of 1 -17.5 wt.% and of 1.5-15 wt.%.

[16] In a preferred embodiment, it is also possible for the high-viscosity dimethiconol a) to be used as a premix with a lower-viscosity component (usually lower-viscosity silicones) in the hair oils of the invention. On the one hand, this can make it easier to incorporate component a), and on the other hand, it can promote a particularly appealing product feel and appearance. Si-0 Si-OH 1 IR1

[17] When using such premixes, however, care must be taken to ensure that the preferred amount of at least one dimethiconol a) (and, if necessary, the amounts of other silicones of lower viscosity, such as components b) and/or c)) is not undercut or exceeded.

[18] Corresponding premixes are known and available in the prior art, for example under the trade names Dowsil® 1507, Dowsil® OHX-0080, Serasence® GB 17, Belsil® GB 1020.

[19] As a second essential ingredient, the hair oils according to the invention contain at least a first silicone b) which has a viscosity < 50 cSt at 25°C.

[20] Dimethiconols do not fall under suitable silicones b) [21] Particularly suitable silicones b) are volatile or liquid at 20°C and 1013 mbar and are selected from compounds of formula (Ill) (CH3)3Si[O-Si(CH3)2].-0-Si(CH3)3 (Ill), in which x is a number from 0 to 100, more preferably 0 to 50 and 1 to 25. They are called dimethicones (dimethylpolysiloxanes).

[22] The term "volatile" is understood that the silicones b) preferably have a vapor pressure in the range of 0.13-40.000 Pa (10-3 -300 mmHg), more preferably 1.3-13,000 Pa (0.01 -100 mmHg) and 1.3-1300 Pa (0.01 -10 mmHg) and a boiling point in the range of 60 ° to 240° C. [23] Still further preferred silicones b) are polydialkylsiloxanes which have a viscosity < 25 cSt at 25°C and < 10 cSt (in each case measured at 25°C using a glass capillary viscometer in accordance with Dow Corning Corporate Test Method CTM 0004 of July 20, 1970).

[24] Corresponding silicones b) are known and available in the prior art, for example under the trade names Xiametern PMX-200 Silicone Fluid 2 cS, Xiametern PMX-200 Silicone Fluid 5 cS, Xiameter® PMX-200 Silicone Fluid 10 cS, Dowsil® DM 5.

[25] The hair oils according to the invention contain silicones b), the above-mentioned preferred dimethicones, in a proportion by weight of Ito 65 wt.% of the total weight of the hair oil. More preferred are weight fractions of the at least one silicone b) of 2-60 wt.% and of 3 -55 wt.°/o.

[26] As a third essential ingredient, the hair oils according to the invention contain at least a second silicone c) which has a viscosity > 10,000 cSt at 25°C.

[27] Dimethiconols do not fall under suitable silicones c).

[28] Particularly suitable silicones c) are non-volatile or liquid to viscous at 20°C and 1013 mbar and are selected from compounds of the formula (Ill) (CH3)3Si[O-Si(CH3)2k-O-Si(CH3)3 (Ill), in which x is a number from 120 to 10000, more preferably 150 to 9000 and 175 to 7500. They are called dimethicones (dimethylpolysiloxanes).

[29] By the term "non-volatile" it is understood that the silicones b) preferably have a vapor pressure in the range of < 0.13 Pa (0.01 mmHg).

[30] Still further preferred silicones c) are polydialkylsiloxanes which have a viscosity at 25°C > 25,000 cSt and > 50,000 cSt (in each case measured at 25°C by means of a glass capillary viscometer according to Dow Corning Corporate Test Method CTM 0004 of July 20, 1970).

[31] Corresponding silicones c) are known and available in the prior art, for example under the trade names Xiameter® PMX-200 Silicone Fluid 60,000 cS, Xiameter® PMX-200 Silicone Fluid 100,000 cS, Dowsil® DM 60000.

[32] The hair oils according to the invention contain silicones c), the above-mentioned preferred dimethicones, in a proportion by weight of Ito 40 wt.% of the total weight of the hair oil. More preferred are weight fractions of the at least one silicone c) of 2-30 wt.% and of 3-25 wt.%.

[33] As a fourth essential ingredient, the hair oils according to the invention contain at least one solvent d) for one or more silicones a) -c).

[34] Suitable solvents d) should dissolve higher-to high-viscosity silicones a) and c) well so that they become easier to manage and process. The co-use of silicone-containing solvents is to be significantly reduced at the same time, and hair oils with excellent feel, good spreading properties and optimal hair care potential are to be provided. In addition, a higher proportion of components d) in the hair oils according to the invention results in better sustainability of the products.

[35] Solvent d) are selected from linear C6-C18 alkanes, - Ester oils, -C2-C6 alcohols -or mixtures thereof.

[36] The at least one solvent d) is used in the hair oils according to the invention in a proportion by weight of 25-90 wt.% of the total weight of the hair oil. Preferred weight fractions of the solvent(s) d) is 30 -90 wt.%, particularly preferred 35 -90 wt.% and especially 40-85 wt.%.

[37] By linear C6-C18 alkanes are meant hexane, heptane, octane, nonane, decane, undecane, dodecane, tridecane, tetradecane, pentadecane, hexadecane, heptadecane, octadecane and mixtures thereof Preferably, the hair oils according to the invention comprise C6-C16 alkanes that are liquid at room temperature (20°C), particularly preferably C10-C16 alkanes and especially C11-C15 alkanes. Single alkanes or ixtu two or more of the alkanes mentioned can be used.

[38] For example, blends of undecane and dodecane, blends of dodecane and tridecane, blends of undecane and tridecane, or blends of undecane, dodecane and tridecane can be used.

[39] Likewise, mixtures of tridecane and tetradecane, tridecane and pentadecane, tetradecane and pentadecane, or tridecane, tetradecane and pentadecane can be used.

[40] Particularly advantageous effects in combination with silicones a) -c) are shown by hair oils according to the invention which contain a mixture of undecane and tridecane or exclusively dodecane as alkane.

[41] Corresponding products are commercially available; for example, under the names Cetiol® Ultimate (INC: designation; Undecane and Tridecane) from BASF or Parafol® 1297 (INCI designation: Dodecane) from the company Sasol. They offer the added benefit of being available from renewable sources.

[42] The proportion by weight of the linear C6-C16 alkanes in the total weight of the hair oils is preferably 5 -90 wt.%, more preferably 30 -90 wt.%, particularly preferably 35 -90 wt.% and especially 40 -85 wt.%.

[43] In particular, the hair oils according to the invention preferably contain undecane, dodecane, tridecane, tetradecane, pentadecane or mixtures thereof in the amounts mentioned above.

[44] In a preferred embodiment, at least one linear C6-C16 alkane can also be used as a mixture with a dimethiconol a) in the hair oils according to the invention.

[45] Such mixtures are known and commercially available, for example under the name Dowsil® 1508 (INCI designation: C13-15 alkanes and dimethiconol).

[46] Suitable ester oils are preferably esters of C6-C30-fatty acids with C2-C30-alcohols, diols, or polyols in which silicones a) and c) can be readily dissolved and which are liquid at room temperature (20°C).

[47] Preferred are esters of linear or branched saturated fatty alcohols having 2 to 18 carbon atoms with linear or branched saturated or unsaturated fatty acids having 6 to 18 carbon atoms, which may be hydroxylated. Preferred examples are isopropyl palmitate, isopropyl stearate, isopropyl myristate, 2-hexyldecyl stearate, 2-hexyl decyllaurate, isodecyl neopentanoate, isononyl isononanoate, 2-ethylhexyl palmitate and 2-ethylhexyl stearate. Also preferred are isopropyl isostearate, isopropyl oleate, isooctyl stearate, isonyl stearate, isocetyl stearate, isononyl isononanoate, isotridecyl isononanoate, cetearyl isononanoate, 2-ethylhexyl laurate, 2-ethylhexyl isostearate, 2-ethylhexyl cocoate, 2-octyldodecyl palmitate, butyloctanoic acid, 2-butyloctanoic acid, diisotridecyl acetate, n-butyl stearate, n-hexyl laurate, n-decyl oleate, °ley! oleate, °leyl erucate, erucyl oleate, erucyl erucate, ethylene glycol dioleate, ethylene glycol dipalmitate, n-hexyl laurate, n-decyl oleate, °leyl oleate, oleylolactyl oleate, oleylucate, erucyl oleate, or mixtures thereof.

[48] Other preferred ester oils are selected from the triglycerides of linear or branched, saturated or unsaturated, optionally hydroxylated 06-030 fatty acids, provided they are liquid under normal conditions. Natural ingredients are especially preferred and can be selected from soybean oil, cottonseed oil, sunflower oil, palm oil, palm kernel oil, coconut oil, linseed oil, almond oil, castor oil, corn oil, canola oil, olive oil, sesame oil, safflower oil, wheat germ oil, peach kernel oil. Only the liquid components of coconut oil and the like may also be particularly suitable. Particularly preferred are triglyceride oils, especially capric/caprylic triglycerides, e.g., the commercial products Myritole 318 or Myritol® 331 (BASF/Cognis) with unbranched fatty acid residues, and glyceryl triisostearin and glyceryl tri(2-ethylhexanoate) with branched fatty acid residues. Other suitable ingredients include those with the INCI designations Coco caprylate and Coco caprylate/caprate.

[49] Other preferred non-volatile non-silicone ester oils are selected from the dicarboxylic acid esters of linear or branched 02-010 alkanols, in particular diisopropyl adipate, di-nbutyl adipate, di-(2-ethylhexyDadipate, dioctyl adipate, diethyl/di-n-butyl/dioctyl sebacate, diisopropyl sebacate, dioctyl malate, dioctyl maleate, dicaprylyl maleate, diisooctyl succinate, di-2-ethylhexyl succinic acid and di-(2-hexyldecyl)succinic acid.

[50] Other non-volatile non-silicone ester oils preferred according to the invention are selected from the addition products of 1 to 5 propylene oxide units to mono-or polyhydric 08-022 alkanols, such as octanol, decanol, decanediol, lauryl alcohol, myristyl alcohol and stearyl alcohol, e.g., PPG-2 myristyl ether and PPG-3 myristyl ether.

[51] Other non-volatile non-silicone ester oils preferred according to the invention are selected from the addition products of at least 6 ethylene oxide and/or propylene oxide units to mono-or polyhydric 03-022 alkanols, such as glycerol, butanol, butanediol, myristyl alcohol and stearyl alcohol, which can be esterified if desired, e.g. PPG-14 butyl ether, PPG-9 butyl ether, PPG-10 butanediol and PPG-15 stearyl ether.

[52] Other non-volatile non-silicone ester oils preferred according to the invention are selected from the symmetric, asymmetric, or cyclic esters of carbonic acid with C6-C20 alcohols, e.g., di-n-caprylyl carbonate (Cetio10 CC) or di-(2-ethylhexyl) carbonate (Tegosoft DEC). Esters of carbonic acid with 01-05 alcohols, e.g., glycerol carbonate or propylene carbonate, are not compounds suitable as cosmetic oils.

[53] In a particularly preferred embodiment, hair oils according to the invention comprise or consist of Coco Caprylate as solvent d).

[54] In another particularly preferred embodiment, hair oils according to the invention comprise or consist of Coco Caprylate/Caprate as solvent d).

[55] In another particularly preferred embodiment, hair oils according to the invention comprise or consist of caprylic/capric triglycerides as solvent d).

[56] In another particularly preferred embodiment, hair oils according to the invention comprise or consist of isopropyl myristate as solvent d).

[57] The ester oil(s) may be used in the hair oils according to the invention, preferably in a proportion by weight of 30-90 wt.% of the total weight of the hair oil. More preferred are weight percentages of 35 -85 wt.%, particularly preferred of 40 -80 wt.% and especially of 45-75 wt.%.

[58] Hair oils according to the invention particularly preferably contain coco caprylates, coco caprylates/caprates, caprylic/capric triglycerides, isopropyl myristates or mixtures thereof in the amounts mentioned above.

[59] For the purposes of the present invention, suitable C2-C6 alcohols are preferably understood to mean alcohols and polyalcohols (polyhydroxyl compounds) having 2 to 6 carbon atoms and at least one hydroxyl group. Typical examples of alcohols suitable according to the invention are ethanol, 1-propanol, 2-propanol, isopropanol, 1-butanol, 2-butanol, 1-pentanol, 2-pentanol, 1-hexanol, 2-hexanol, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, dipropylene glycol, 2-methyl-1,3-propanediol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, isoprene glycol, 1,2-pentanediol (pentylene glycol), 1,3-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 1,2,6-hexanetriol, glycerin, diglycerin, erythritol, sugar alcohols such as sorbitol mannitol, isomaltitol, lactitol, sorbitol, xylitol, fructose, glucose, lactose, galactose or mixtures of these alcohols.

[60] Ethanol, propanol, isopropanol, 1-butanol, 1-hexanol, 1,2-propylene glycol, dipropylene glycol, glycerol, diglycerol and mixtures thereof are particularly preferred. Ethanol is particularly preferred.

[61] The C2-C6 alcohol(s) can be used in the hair oils according to the invention, preferably in a proportion by weight of 30-90 wt.% of the total weight of the hair oil. More preferred are weight percentages of 35 -85 wt.%, particularly preferred of 40 -80 wt.% and especially of 45 -75 wt.%.

[62] Particularly preferably, ethanol according to the invention contains the above-mentioned amounts.

[63] As stated earlier, classic silicone-based hair oils or commercial blends comprising high-viscosity silicones usually include volatile silicones -mostly cyclic silicones -known by the INCI designation cyclomethicone (cyclomethicone). The INCI term cyclomethicone refers to cyclotrisiloxane (hexamethylcyclotrisiloxane -D3), cyclotetrasiloxane (octamethylcyclotetrasiloxane -D4), cyclopentasiloxane (decamethylcyclopentasiloxane -D5) and cyclohexasiloxane (dodecamethylcyclohexasiloxane -D6). At 20 °C, these silicone oils have a vapor pressure of approx. 13 to 15 Pa.

[64] However, due to their persistence in the environment, it is desirable to avoid the use of cyclomethicones in cosmetic products as far as possible.

[65] In a particularly preferred embodiment, hair oils according to the invention are therefore essentially free of cyclic silicones.

[66] In a further preferred embodiment, hair oils according to the invention are free of D3- * D4-, D5-, D6-cyclomethicones.

[67] In this context, "essentially free" is understood to mean that no free cyclic silicone compounds are added to the hair oils according to the invention.

[68] If commercial mixtures contain cyclic silicones as impurities, it is further preferred if their proportion by weight is at most 0.25 wt.%, more preferably at most 0.1 wt.% and at most 0.05 wt.% of the total weight of the hair oils.

[69] Further, particularly preferred hair oils according to the invention are also substantially free of water.

[70] In this context, "essentially free" is understood to mean that the water content of preferred hair oils, relative to the total weight of the hair oils, is less than 5% by weight, preferably less than 2.5% by weight, particularly preferably less than 1% by weight and especially less than 0.1% by weight, with very particularly preferred hair oils containing no water.

[71] The care effect of the hair oils according to the invention can be further increased by adding further oil components.

[72] Among suitable other oil components are - Natural oils -Fatty alcohols -and mixtures thereof [73] In a preferred embodiment, hair oils according to the invention additionally contain 0.1 -10 wt.% of at least one natural oil (relative to the total weight of the hair oil).

[74] In the context of the present invention, natural oils preferably include Ricinus Communis (castor) seed oil, Krambe seed oil, amaranth seed oil, apricot kernel oil, argan oil, avocado oil, babassu oil, cottonseed oil, borage seed oil, camelina oil, safflower oil, peanut oil, pomegranate seed oil, grapefruit seed oil, hemp oil, hazelnut oil, elderberry seed oil, currant seed oil, jojoba oil, Cocoa butter, Flaxseed oil, Macadamia nut oil, Corn oil, Almond oil, Marula oil, Evening primrose oil, Olive oil, Orange oil, Palm oil, Peach kernel oil, Canola oil, Rice bran oil, Sea buckthorn fruit pulp oil, sea buckthorn seed oil, sesame oil, shea butter, soybean oil, sunflower oil, grape seed oil, walnut oil, wheat germ oil, wild rose oil, the liquid portions of coconut oil and mixtures thereof.

[75] Particularly preferably, hair oils according to the invention contain 0.1 -10 wt.% of one or more of the previously mentioned natural oils (relative to the total weight of the hair oil).

[76] In a further preferred embodiment, hair oils according to the invention additionally contain 0.1 -20 wt.% of at least one fatty alcohol (relative to the total weight of the hair oil).

[77] In the context of the present invention, fatty alcohols preferably include capric alcohol, caprylic alcohol, 2-ethylhexyl alcohol, caprin alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, linolyl alcohol, linolenyl alcohol, elaeostearyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassidyl alcohol, and mixtures thereof [78] Particularly preferably, hair oils according to the invention contain 0.1 -20 wt.% of one or more of the previously mentioned fatty alcohols (relative to the total weight of the hair oil).

[79] The beneficial properties of the hair oils according to the invention can be further enhanced if antioxidants are added to them.

[80] Suitable antioxidants in the sense of the present invention include, for example. Carotenoids, especially lycopene and astaxanthin Carotenes, especially beta-carotene - Tocopherols, especially tocopheryl acetate - Dihydroquercetin - Gallic acid esters 3,4-Dihydro-7-methoxy-2,2-dimethy1-2H-1-benzopyran-6-ol Vitis vinifera polyphenols Ubiquinones and/or ubiquinols Superoxide dismutases - Ellagic acid and/or Ellagate as well as mixtures thereof [81] Beta-carotene, tocopheryl acetate or mixtures thereof are particularly preferred because, in addition to their antioxidant effect, these antioxidants also support the excellent product appearance of the hair oils according to the invention. Their addition gives the hair oils of the invention a particularly rich appearance (pure oil color).

[82] Antioxidants may preferably be present in the hair oils according to the invention in a proportion by weight of 0.001 -1 wt.% of the total weight of the hair oil.

[83] Particularly preferably, hair oils according to the invention contain 0.001 -1 wt.% vitamin E acetate (tocopheryl acetate), beta-carotene and/or mixtures thereof (relative to the total weight of the hair oil).

[84] Particularly preferably, the hair oil is applied to the user's hand through a dispenser. Thus, the packaging is adapted based on this application method, as the skilled person well understands it. The user then distributes the hair oil from his hand / hands to the hair length and ends. The user can spread the hair oil on his hand! hands before distribution. The user can pump the hair oil into his hand, so the dispenser can include a pump. The dispenser may likewise include a pipette to allow the oil to be dispensed from the dispenser into the hand. The dispenser can likewise include a droplet insert.

[85] The hair oil can alternatively be applied in the form of a sprayed oil and sprayed on the hair. The spray can be a pump spray, or the spraying can be achieved with the help of propellants. Suitable blowing agents (propellants) are propane, propene, n-butane, isobutane, iso-butene, n-pentane, pentene, iso-pentane, iso-pentene, methane, ethane, dimethyl ether, nitrogen, air, oxygen, nitrous oxide, 1,1,1,3-tetrafluoroethane, heptafluoron-propane, perfluoroethane, monochlorodifluoromethane, 1,1-difluoroethane, more specifically either singly or in combination. Hydrophilic propellants, such as carbon dioxide, can be used just as advantageously, provided that the proportion of hydrophilic gases is selected to be low, and a lipophilic propellant (for example, propane/butane) is present in excess. Propane, n-butane, iso-butane, and mixtures of these propellants are particularly preferred. It has been shown that the use of n-butane as the sole propellant gas may be particularly preferred. Vessels made of metal (aluminum, tinplate, tin), protected or non-splintering plastic or glass coated with plastic on the outside can be used as compressed gas containers; pressure resistance and breaking strength, corrosion resistance, easy filling, as well as aesthetic considerations, handiness, printability, etc. play a role in their selection.

[86] The invention thus also relates to the use of hair oil for the care of keratin fibers.

[87] A further subject of the present application is therefore a process for the treatment of keratin fibers, in which a hair oil according to the invention is applied to the dried and/or moist keratin fibers.

[88] The hair oil according to the invention is preferably used immediately before, during or after an oxidative or surfactant hair treatment. In the context of the invention, the expression "immediately prior to the oxidative or surfactant hair treatment" is understood as an application immediately following the oxidative or surfactant hair treatment, wherein the hair treatment composition according to the invention has previously been rinsed out of the hair, or preferably left on the hair, and wherein the hair is preferably still damp.

[89] The expression "after the oxidative or surfactant hair treatment" is understood in the context of the invention as an application which either immediately follows the oxidative or surfactant hair treatment, the hair treatment agent according to the invention being applied to the preferably still damp, towel-dried hair as soon as the agent with oxidative or surfactant effect has been rinsed out, or being applied to the dry or damp hair after only a few hours or days. In both cases, the hair treatment agent according to the invention can be rinsed out again after a reaction time of a few seconds up to 45 minutes or remain completely on the hair.

[90] A further subject of the present application is the use of a hair oil according to the invention for the care of keratin fibers. In particular, the use is claimed herein of a cosmetic agent according to the invention - to improve the detangling of hair, - to improve the combability of wet and dry hair, - to improve the shine of keratin fibers, -to improve the feel of keratin fibers.

[91] According to the invention, combability means both the combability of the moist fibers and the combability of the dry fibers. The combined combing work, or the force exerted during the process of combing a fiber collective, is used as a measure of combability. The measurement parameters can be evaluated by a skilled person in a sensory manner or can be quantified using measurement devices.

[92] In addition to the active ingredients described above, the hair oils according to the invention may contain further ingredients. The group of these other ingredients includes the cosmetically active ingredients, excipients, and additives.

[93] A first group of optional ingredients is formed by the additional substances that form oil bodies. Examples of these include di-n-alkyl ethers with a total of between 12 and 36 carbon atoms, for example: Di-n-alkyl ethers with a total of between 12 and 36 C atoms, in particular 12 to 24 C atoms, such as di-octyl ether, di-n-decyl ether, di-n-n-onyl ether, di-n-undecyl ether, din-dodecyl ether, n-hexyl noctyl ether, n-octyl n-decyl ether, n-decyl n-undecyl ether, nundecyl n-dodecyl ether and n-hexyl n-undecyl ether, as well as di-tert-butyl ether, diisopentyl ether, di-3-ethyl decyl ether, tert. -butyl-n-octyl ether, isopentyl-n-octyl ether and 2-methylpentyl-n-octyl ether. The compounds 1,3-di-(2-ethylhexyl)-cyclohexane (Cetiol® S) and di-n-octyl ether (Cetiol® OE), which are available as commercial products, may be preferred.

[94] The hair oil according to the invention can also contain fatty acid partial glycerides, i.e., monoglycerides, diglycerides and technical mixtures thereof, as an additional ingredient. When using technical products, lesser amounts of triglycerides may still be present due to the production process. The partial glycerides preferably confirm the following formula, CH20(0H20F120)4V CHO(CH2CF120)12 CH20(CH2CH20),,R3 wherein R1, R2 and R3 are independently hydrogen or a linear or branched, saturated and/or unsaturated acyl group having 6 to 22, preferably 12 to 18 carbon atoms, with the proviso that at least one of these groups is an acyl group and at least these groups are hydrogen. The sum (m+n+q) represents 0 or numbers from 1 to 100, preferably 0 or 5 to 25. R1 preferably represents an acyl group and R2 and R3 are preferably hydrogen, and the sum (m + n + q) is 0. Typical examples are mono-and/or diglycerides based on caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, elaeostearic acid, arachidic acid, gadoleic acid, behenic acid and erucic acid, and technical mixtures thereof Oleic acid monoglycerides are preferred.

[95] Other suitable active ingredients, excipients and additives are additional care substances. For example, the agent may contain at least one protein hydrolysate and/or derivative thereof as a conditioning agent. Protein hydrolysates are product mixtures obtained by acid-catalyzed, base-catalyzed, or enzyme-catalyzed degradation of proteins. According to the invention, the term "protein hydrolysates" also includes total hydrolysates and individual amino acids and derivatives thereof as well as mixtures of different amino acids. The molecular mass of the protein hydrolysates usable according to the invention ranges from 75, the molecular mass for glycine, to 200,000 daltons, and the molecular mass is preferably 75 to 50,000 daltons and most preferably 75 to 20,000 daltons.

[96] The hair oils according to the invention can also contain at least one oil-based plant extract, but also monosaccharides or oligosaccharides and/or lipids.

[97] The hair oils disclosed herein may likewise include a perfume. Suitably, a perfume is included in an amount ranging from 0.1 to 3 wt.%, preferably 0.25 to 2 wt.%, relative to the weight of the hair oil.

[98] The hair oil disclosed herein may have any viscosity that makes it suitable for dispensing from the package to the user's hand. The viscosity of the hair oil disclosed herein can be measured in cenfipoise (cps). The hair oil disclosed herein can have a viscosity in the range of about 0.8 cps to about 500,000 cps.

[99] In one example, a hair oil as disclosed herein is provided as a dispensable liquid having a viscosity in the range of from about 300 to about 10,000 cps, such as from about 500 cps to about 7,500 cps.

Procedure [100] The present disclosure is equally directed to a process for using a hair oil according to the invention. The process includes applying the hair oil disclosed herein to the hair. The process includes dispensing the hair oil disclosed herein onto the user's hand and from the user's hand onto the hair. The process may additionally include rubbing the hair. The process may include the user spreading the hair oil in their hand or hands priorto application to the hair.

[101] The process disclosed herein for using a hair oil may likewise include additional optional steps. In one example, such steps may include air drying the hair, drying the hair using heat, styling the hair, and any other suitable step known to one skilled in the art of hair treatment.

[102] The invention may be characterized by the following numbered statements.

1. Hair oil comprising -based on the total weight of the hair oil -.

a) 0.5 -20 wt.% of at least one dimethiconol, b) 1 -65 wt.% of at least one first silicone having a viscosity < 50 cSt at 25°C, c) 1 -40 wt.% of at least one second silicone having a viscosity > 10,000 cSt at 25°C, d) 25-90 wt.% of at least one solvent for one or more of components a), b), c), selected from linear C6-C18 alkanes, - Ester oils, - C2-C6 alcohols -or mixtures thereof 2. The hair oil according to statement 1, wherein the total amount of the or each dimethiconol ranges from 1 -17.5 wt.%, relative to the total weight of the hair oil.

3. A hair oil according to any one of the preceding statements, wherein the total amount of the or each dimethiconol ranges from 1.5-15 wt.%, relative to the total weight of the hair oil.

4. A hair oil according to any one of the preceding statements, wherein the or each silicone b) is selected from polydialkylsiloxanes having a viscosity < 25 cSt at 25°C.

5. A hair oil according to any one of the preceding statements, wherein the or each silicone b) is selected from polydialkylsiloxanes, have a viscosity < 10 cSt at 25°C.

6. Hair oil according to any of the preceding statements, wherein the total amount of the or each silicone b) ranges from 2-60 wt.%, relative to the total weight of the hair oil.

7. Hair oil according to any of the preceding statements, wherein the total amount of the or each silicone b) ranges from 3-55 wt.%, relative to the total weight of the hair oil.

8. A hair oil according to any one of the preceding statements, wherein the or each silicone c) is selected from polydialkylsiloxanes having a viscosity > 25,000 cSt at 25°C.

9. A hair oil according to any one of the preceding statements, wherein the or each silicone c) is selected from polydialkylsiloxanes having a viscosity > 50,000 cSt at 25°C.

10. Hair oil according to any of the preceding statements, wherein the total amount of the or each silicone c) ranges from 2-30 wt.%, relative to the total weight of the hair oil.

11. Hair oil according to any of the preceding statements, wherein the total amount of the or each silicone c) ranges from 3-25 wt.%, relative to the total weight of the hair oil.

12. Hair oil according to any of the preceding statements, wherein the total amount of the or each solvent d) ranges from 30-90 wt.%, relative to the total weight of the hair oil.

13. Hair oil according to any of the preceding statements, wherein the total amount of the or each solvent d) ranges from 35-90 wt.%, relative to the total weight of the hair oil.

14. A hair oil according to any one of the preceding statements, wherein or each solvent d) is selected from undecane, dodecane, tridecane, tertadecane, pentadecane and mixtures thereof.

15. The hair oil according to any one of statements 1 to 13, wherein or each solvent d) is selected from esters of C6-C30 fatty acids with C2-C30 alcohols, diols, or polyols.

16. The hair oil of any one of statements 1 to 13 or 15, wherein or each solvent comprises or consists of d) coco caprylates.

17. The hair oil of any one of statements 1 to 13 or 15, wherein or each solvent comprises or consists of d) coco caprylate/caprate.

18. The hair oil of any one of statements 1 to 13 or 15, wherein or each solvent is d) Caprylic/Capric Triglyceride comprises or consists of 19. The hair oil of any one of statements 1 to 13 or 15, wherein or each solvent comprises or consists of d) isopropyl myristate.

20. The hair oil of any one of statements 1 to 13 or 15, wherein or each solvent d) is selected from ethanol, propanol, isopropanol, butanol, hexanol, 1,2-propylene glycol, dipropylene glycol, glycerol, diglycerol and mixtures thereof 21. The hair oil of any one of statements 1 to 13 or 20, wherein or each solvent comprises d) ethanol or consists of ethanol.

22. A hair oil according to any of the preceding statements that is free of cyclic silicones.

23. Hair oil according to any of the preceding statements, which is free of D3, D4, D5, D6 cyclomethicones.

24. Hair oil according to any of the preceding statements that is free of water.

25. Hair oil according to any of the preceding statements, additionally containing 0.1 -10 wt.% of at least one natural oil (relative to the total weight of the hair oil).

26. Hair oil according to any of the preceding statements, additionally containing 0.1 -10 wt.% of % Ricinus Communis (castor) seed oil, Krambe seed oil, amaranth seed oil, apricot kernel oil, argan oil, avocado oil, babassu oil, cottonseed oil, borage seed oil, camelina oil, safflower oil, peanut oil, pomegranate seed oil, grapefruit seed oil, hemp oil, hazelnut oil, elderberry seed oil, currant seed oil, jojoba oil, cocoa butter, linseed oil, macadamia nut oil, corn oil, almond oil, marula oil, evening primrose oil, olive oil, orange oil, palm oil, peach kernel oil, rapeseed oil, rice bran oil, sea buckthorn pulp oil, sea buckthorn seed oil, sesame oil, shea butter, soybean oil, sunflower oil, grape seed oil, walnut oil, wheat germ oil, wild rose oil, the liquid portions of coconut oil and mixtures thereof 27. Hair oil according to any of the preceding statements, additionally containing 0.1 -20 wt.% of at least one fatty alcohol (relative to the total weight of the hair oil).

28. Hair oil according to any one of the preceding statements, additionally containing 0.1 -20 wt.%. % Caprylic alcohol, capryl alcohol, 2-ethylhexyl alcohol, caprin alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, °leyl alcohol, elaidyl alcohol, petroselinyl alcohol, linolyl alcohol, linolenyl alcohol, elaeostearyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassidyl alcohol and mixtures thereof.

29. Hair oil according to any of the preceding statements, additionally containing 0.001 -1 wt.% of one or more antioxidants.

30. Hair oil according to any of the preceding statements, additionally containing 0.001 -1 wt.% vitamin E acetate, beta-carotene and/or mixtures thereof 31. Cosmetic product comprising the hair oil according to the one of the previous statements.

32. The cosmetic product of claim 29, wherein the product comprises a pump dispenser.

33. The cosmetic product of statement 29, wherein the product comprises a pipette.

34. The cosmetic product of statement 29, wherein the product comprises a droplet insert.

35. Use of a hair oil or cosmetic product according to any of the preceding statements for the care of hair fibers.

36. Use according to statement 35 to improve hair grip, detangling and combing wet and dry hair and increase hair shine.

37. A process for using a hair oil according to any one of statements 1 to 30 or a cosmetic product according to any one of statements 31 to 34, the process comprising applying the hair oil to the hair.

38. The process of statement 37, wherein the applying comprises dispensing the hair oil onto the user's hand, followed by applying the cosmetic agent from the user's hand to the hair.

Examples

[103] All quantities indicated refer to parts by weight. The following hair oils were provided using known manufacturing processes.

1 2 3 4 5 Dowsil®1 1508 5-60 5-60 5-20 30-60 5-60 Dimethicone 5 cSt 3-40 3-40 3-20 3-20 3-40 Xiameter PMX-200 ®2 2 cSt 1-20 1-20 Dimethicone 100.000 cSt 3-30 3-30 3-30 3-20 3-30 Parafol03 12 25-80 25-80 30-60 30-60 25-80 Avocado oil 0-10 0-10 0-10 Fatty alcohol" 0-10 0-10 Tocopheryl acetate 0-10 0-10 0-10 " Lauryl Alcohol and/or Mynstyl Alcohol 6 7 8 9 10 Dowsil®1 1508 3-30 3-30 3-30 3-30 3-30 Dimethicone 5 cSt 3-40 3-40 3-40 3-40 3-40 Dimethicone 60.000 cSt 10-30 10-30 10-30 10-30 10-30 Cetio104 C5 30-70 Cetior5 CC 30 -70 Myritol®6 318 30-70 Isopropyl myristate 30 -70 Ethanol 30 -70 Avocado oil 0-10 0-10 0-10 0-10 0-10 Fatty alcohol* 0-10 0-10 0-10 0-10 0-10 Tocopheryl acetate 0-10 0-10 0-10 0-10 0-10 * Lauryl Alcohol and/or Myristyl Alcohol The following trading products were used in the examples: * INCI designation: C13-15 Alkanes and Dimethiconol (Dow) 02 INCI designation: Dimethicone, 2 cSt (Dow) * INCI designation: Dodecane (97%) (Sasol) 04 INCI designation: Coco-Caprylates (BASF) INCI designation: Dicaprylyl Carbonate (BASF) (06 INCI designation: Caprylic/Capric Triglyceride (BASF) [104] The exemplary hair oils were found to be beneficial in terms of silky hair feel, increased shine and useful smoothness, suppleness, combability and detangling.

[105] In addition, hair oils according to the invention enable rich care of already stressed hair fibers, making them easy to detangle and comb again.

[106] The hair oils according to the invention are also particularly advantageous regarding their good spread ability in and along the hair fibers, which is ensured by the optimum product consistency.

[107] It is understood that the invention may be modified within the scope of the appended claims.

Claims (10)

1. Claims 1 Hair oil comprising -based on the total weight of the hair oil -a) 0.5 -20 wt.% of at least one dimethiconol, b) 1 -65 wt.% of at least one first silicone having a viscosity < 50 cSt at 25°C, c) 1 -40 wt.% of at least one second silicone having a viscosity > 10,000 cSt at 25°C, d) 25 -90 wt.% of at least one solvent for one or more of components a), b), c), selected from linear C6-C18 alkanes, - Ester oils, - C2-C6 alcohols - or mixtures thereof.
2. 2. A hair oil according to any claim 1, wherein the or each silicone b) is selected from polydialkylsiloxanes having a viscosity <25 cSt at 25°C.
3. 3. A hair oil according to any one of the preceding claims, wherein the or each silicone c) is selected from polydialkylsiloxanes having a viscosity > 25,000 cSt at 25°C.
4. 4. A hair oil according to any one of the preceding claims, wherein or each solvent d) is selected from undecane, dodecane, tridecane, tertadecane, pentadecane and mixtures thereof.
5. 5. Hair oil according to any one of the preceding claims, wherein or each solvent d) is selected from esters of C6-C30 fatty acids with C2-C30 alcohols, diols, or polyols.
6. 6. The hair oil of any one of claims 1 to 4, wherein or each solvent d) is selected from ethanol, propanol, isopropanol, butanol, hexanol, 1,2-propylene glycol, dipropylene glycol, glycerol, diglycerol, and mixtures thereof
7. 7. Hair oil according to any one of the preceding claims, which is free of cyclic silicones.
8. 8. Hair oil according to any one of the preceding claims, which is free of water.
9. 9. Use of a hair oil according to any one of the preceding claims for the care of hair fibers.
10. 10. A process of using a hair oil according to any one of claims 1 to 8, the process comprising applying the hair oil to the hair.