Compounds for use as wetting agents and / or dispersants
Glyceryl ethers and sorbitan/isosorbide esters derived from renewable sources serve as effective wetting and dispersing agents, improving the dispersion and stability of insoluble solids in cosmetic formulations, addressing the need for sustainable ingredients.
Patent Information
- Application Number
- JP2025527135
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-02-28
- Filing Date
- 2024-02-15
- Publication Date
- 2025-12-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
There is a need for superior performing wetting and dispersing agents in cosmetic formulations, particularly those derived from natural and renewable sources, to enhance the manufacturing process and efficacy of products containing insoluble solids like pigments and UV absorbers.
The use of compounds such as glyceryl ethers, sorbitan esters, and isosorbide esters, particularly caprylyl glyceryl ether, sorbitan caprylate, and isosorbide caprylate, as multifunctional ingredients acting as wetting agents and dispersants, which are derived from renewable sources.
These compounds effectively improve the dispersion and stability of insoluble solids in cosmetic formulations, enhancing product performance and consumer acceptance by utilizing sustainable ingredients.
Smart Images

Figure 2025540004000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to the use of certain compounds as wetting and / or dispersing agents. [Background technology]
[0002] Personal care is important for hygiene, health, and beauty. Insoluble solids such as pigments and UV absorbers play important functional roles in products such as color cosmetics, moisturizers, and sunscreens, and may also be used in other skin and hair care products.
[0003] The effectiveness of incorporating such solids into a liquid matrix is often a key determining factor in both the manufacturing process and the efficacy of the final formulation. Initial wetting of the solid particles is a critical part of this process. During the wetting stage, air adsorbed on the solid surface is displaced, and the solid is completely surrounded by the liquid. This step may be followed by a dispersion step, which uses high-shear mixing to physically reduce the primary particle size of the solid or to break down any agglomerates remaining after initial wetting. In some cosmetic formulations, it is common to use only low to moderate shear and rely on effective wetting to achieve a stable dispersion with the desired properties, such as a pleasant skin feel or good particle spreadability. Summary of the Invention [Problem to be solved by the invention]
[0004] There is a continuing need for superior performing wetting and dispersing agents. Furthermore, there is a general demand for ingredients in cosmetic formulations to be based on or derived from natural and renewable sources: indeed, consumers are concerned about the source of ingredients used in such formulations and feel more comfortable using ingredients derived from natural and renewable sources. [Means for solving the problem]
[0005] It has been found that certain compounds can be used as wetting agents and / or dispersing agents. The present invention therefore relates to the use as wetting and / or dispersing agent of a compound X selected from glyceryl ethers, sorbitan esters, isosorbide esters and compounds of formula (I): [ka] wherein R is selected from saturated hydrocarbon chains having 5 to 23 carbon atoms, unsaturated hydrocarbon chains having 5 to 23 carbon atoms, and mixtures thereof.
[0006] The compounds used in the present invention are known as preservative boosters and / or emollients or deodorants. They can also be used as multifunctional ingredients, such as preservative boosters, wetting agents and / or dispersants. Advantageously, the compounds used in the present invention have a high renewable carbon content, i.e., are sustainable.
[0007] According to the invention, compound X is selected from glyceryl ethers, sorbitan esters, isosorbide esters and compounds of formula (I): [ka] wherein R is selected from saturated hydrocarbon chains having 5 to 23 carbon atoms, unsaturated hydrocarbon chains having 5 to 23 carbon atoms, and mixtures thereof.
[0008] Preferably, compound X is selected from glyceryl ethers, sorbitan esters and isosorbide esters, particularly preferably from glyceryl ethers.
[0009] In one embodiment, compound X is selected from glyceryl ethers. Preferably, the glyceryl ether is a mono- or di-ether of glycerin and one or more C6-C20 fatty alcohols. More preferably, the glyceryl ether is a mono- or di-ether of glycerin and one or more C8-C14 fatty alcohols. Particularly preferably, the glyceryl ether is a mono- or di-ether of glycerin and one or more C8 fatty alcohols.
[0010] Preferably, the glyceryl ether is selected from ethylhexylglycerin, methylheptylglycerin, caprylyl glyceryl ether, and mixtures thereof. More preferably, the glyceryl ether is selected from ethylhexylglycerin, caprylyl glyceryl ether, and mixtures thereof. A particularly preferred glyceryl ether is caprylyl glyceryl ether.
[0011] In one embodiment, compound X is selected from sorbitan esters and isosorbide esters.
[0012] Preferably, the sorbitan ester is a monoester, diester, or triester of sorbitan and one or more C6 to C20 fatty acids. More preferably, the sorbitan ester is a monoester or diester of sorbitan and one or more C8 to C14 fatty acids. Particularly preferably, the sorbitan ester is a monoester or diester of sorbitan and caprylic acid.
[0013] In one embodiment, compound X is selected from sorbitan esters. Preferably, the sorbitan ester is selected from sorbitan caprylate, sorbitan stearate, sorbitan olivate, sorbitan oleate, sorbitan caprate, sorbitan laurate, sorbitan myristate, sorbitan caproate, and mixtures thereof. Particularly preferably, the sorbitan ester is sorbitan caprylate.
[0014] In one embodiment, compound X is selected from isosorbide esters. Preferably, the isosorbide ester is a monoester or diester of isosorbide and one or more C6-C20 fatty acids. More preferably, the isosorbide ester is a monoester or diester of isosorbide and one or more C8-C14 fatty acids. Particularly preferably, the isosorbide ester is a monoester or diester of isosorbide and caprylic acid.
[0015] Preferably, the isosorbide ester is selected from isosorbide caprylate, isosorbide stearate, isosorbide olivate, isosorbide oleate, isosorbide caprate, isosorbide laurate, isosorbide myristate, isosorbide caproate, and mixtures thereof. Particularly preferably, the isosorbide ester is isosorbide caprylate.
[0016] In one embodiment, compound X is selected from compounds of formula (I): [ka] wherein R is selected from saturated hydrocarbon chains having 5 to 23 carbon atoms, unsaturated hydrocarbon chains having 5 to 23 carbon atoms, and mixtures thereof.
[0017] Preferably, R in formula (I) is selected from saturated hydrocarbon chains having from 5 to 17 carbon atoms, unsaturated hydrocarbon chains having from 5 to 17 carbon atoms, and mixtures thereof.
[0018] More preferably, R in formula (I) is selected from saturated hydrocarbon chains having from 5 to 13 carbon atoms, unsaturated hydrocarbon chains having from 5 to 13 carbon atoms, and mixtures thereof.
[0019] Particularly preferably, R in formula (I) is selected from saturated hydrocarbon chains having 7 to 9 carbon atoms, unsaturated hydrocarbon chains having 7 to 9 carbon atoms, and mixtures thereof.
[0020] In at least one embodiment, R of formula (I) is selected from —(CH2)6CH3, —(CH2)8CH3, and mixtures thereof; or, R of formula (I) is —(CH2) 10 CH3, -(CH2) 12 or R in formula (I) is selected from —(CH2)7CH═CH2, —(CH2)7CH═CHCH2CH3, and mixtures thereof; or the R C═O residue in formula (I) is derived from soybean fatty acid.
[0021] In at least one embodiment, R in formula (I) is selected from -(CH2)6CH3, -(CH2)8CH3, and mixtures thereof. In at least one embodiment, R in formula (I) is -(CH2) 10 CH3, -(CH2) 12 In at least one embodiment, R in formula (I) is selected from -(CH2)7CH=CH2, -(CH2)7CH=CHCH2CH3, and mixtures thereof. In at least one embodiment, the R C=O residue in formula (I) is derived from coconut fatty acid. In at least one embodiment, the R C=O residue in formula (I) is derived from soybean fatty acid.
[0022] As used herein, the phrase "the RC=O residue of formula (I) is derived from a coconut fatty acid" preferably means that the carbon chain length distribution of the RC=O residue of formula (I) corresponds to the carbon chain length distribution of the fatty acids (e.g., bound as triglycerides) in coconut oil.
[0023] As used herein, the phrase "the R═O residue of formula (I) is derived from soybean fatty acids" preferably means that the carbon chain length distribution of the R═O residue of formula (I) corresponds to the carbon chain length distribution of the fatty acids (e.g., bound as triglycerides) in soybean oil.
[0024] Preferably, the weight ratio of the compound of formula (I) wherein R is (CH2)6CH3 to the compound of formula (I) wherein R is -(CH2)8CH3 is from 1:9 to 9:1, preferably from 3:7 to 7:3.
[0025] Preferably, R is (CH2) 10 Compounds of formula (I) where R is -(CH) 12 The weight ratio of the compound of formula (I) that is CH3 is from 1:9 to 9:1, preferably from 3:7 to 7:3.
[0026] Preferably, the weight ratio of the compound of formula (I) wherein R is -(CH2)7CH=CH2 to the compound of formula (I) wherein R is -(CH2)7CH=CHCH2CH3 is from 1:9 to 9:1, preferably from 3:7 to 7:3.
[0027] Compounds of formula (I) are described, for example, in WO2018 / 002100 and EP application number EP21200587.0.
[0028] In a preferred embodiment, compound X is selected from caprylyl glyceryl ether, ethylhexylglycerin, sorbitan caprylate, isosorbide caprylate, and mixtures thereof. In a more preferred embodiment, compound X is selected from caprylyl glyceryl ether and ethylhexylglycerin. In a particularly preferred embodiment, compound X is caprylyl glyceryl ether.
[0029] In the present invention, compound X is used as a wetting agent and / or dispersing agent. In a preferred embodiment, compound X is used as a wetting agent. In a preferred embodiment, compound X is used as a dispersing agent. In a preferred embodiment, compound X is used as both a wetting agent and a dispersing agent.
[0030] Preferably, the wetting agent is a pigment wetting agent, a sunscreen wetting agent, or a particulate matter wetting agent. More preferably, the wetting agent is a pigment wetting agent or a sunscreen wetting agent.
[0031] Preferably, the dispersant is a pigment dispersant, a sunscreen dispersant, or a particulate matter dispersant. More preferably, the dispersant is a pigment dispersant or a sunscreen dispersant.
[0032] Preferably, the pigment is an inorganic pigment. Preferred pigments are described below. Preferably, the sunscreen is an inorganic sunscreen. Preferably, the sunscreen is a UV filter. Preferably, the UV filter is an inorganic UV filter. Particularly preferably, the sunscreen is an inorganic UV filter. Preferred sunscreens are described below.
[0033] In a preferred embodiment, compound X is used in a cosmetic formulation. Preferably, the cosmetic formulation is a skin care formulation or a hair care formulation. Particularly preferably, the cosmetic formulation is a skin care formulation. Also preferably, the cosmetic formulation is a hair care formulation. In one embodiment, compound X is used in a home care formulation.
[0034] In a preferred embodiment, the cosmetic formulation is a shampoo, body wash, face cleanser, face mask, bubble bath, intimate wash, bath oil, cleansing milk, micellar water, makeup remover, hair mask, liquid soap, shaving soap, shaving foam, cleansing foam, day cream, anti-aging cream, body milk, body lotion, body mousse, face serum, eye cream, sunscreen lotion, sun cream, face cream, aftershave lotion, pre-shave cream, hair removal cream, whitening gel, self-tanning cream, acne gel, mascara, foundation, primer, concealer, blush, bronzer, BB cream, eyeliner, night cream, eyebrow gel, highlighter, lip stain, hand cream, The product is selected from the group consisting of finger sanitizer, hair oil, nail polish remover, conditioner, hair styling gel, hair styling cream, anti-frizz serum, scalp treatment, hair color, split end solution, deodorant, antiperspirant, baby cream, insect repellent, hand cream, sunscreen gel, foot cream, exfoliant, body scrub, cellulite treatment, bar soap, cuticle cream, lip balm, hair treatment, eye shadow, bath salts, body mist, mouthwash, toothpaste, lubricating gel, moisturizer, serum, toner, aqua sorbet, cream gel, styling mousse, dry shampoo, lipstick, lip gloss, hydroalcoholic gel, body oil, shower milk, illuminator, lip crayon, hairspray, combing cream, and sunblock.
[0035] In a preferred embodiment, the cosmetic formulation is a body wash, a face cleanser, a cleansing mask, a bubble bath, a bath oil, a cleansing milk, a micellar water, a makeup remover, a soap, a shaving soap, a shaving foam, a cleansing foam, a face mask, an intimate wash, a micellar water, a liquid soap, a day cream, an anti-aging cream, a body milk, a body lotion, a body mousse, a face serum, an eye cream, a sunscreen lotion, a sun cream, a face cream, an aftershave lotion, a pre-shave cream, a hair removal cream, a whitening gel, a self-tanning cream, an anti-acne gel, a mascara, a foundation, a primer, The product is selected from the group consisting of concealer, blush, bronzer, BB cream, eyeliner, night cream, eyebrow gel, highlighter, lip stain, hand sanitizer, nail polish remover, skin conditioner, split end treatment, deodorant, antiperspirant, baby cream, insect repellent, hand cream, sunscreen gel, foot cream, exfoliant, body scrub, cellulite treatment, bar soap, nail and cuticle cream, lip balm, eye shadow, bath salts, body mist, lubricating gel, moisturizer, serum, lotion, aqua sorbet, cream gel, lipstick, lip gloss, hydroalcoholic gel, body oil, shower milk, illuminator, lip crayon, and sunblock.
[0036] Preferably, compound X is used in the cosmetic formulation in an amount of 0.1 to 10% by weight, more preferably 0.2 to 5% by weight, even more preferably 0.3 to 3% by weight, and particularly preferably 0.5 to 2% by weight, based on the total weight of the cosmetic formulation.
[0037] In a preferred embodiment, the cosmetic formulation comprises a pigment, a sunscreen, or a particulate material. In a more preferred embodiment, the cosmetic formulation comprises a pigment or a sunscreen.
[0038] Preferably, the pigment is an inorganic pigment. Preferably, the sunscreen is an inorganic sunscreen. Preferably, the sunscreen is a UV filter. Preferably, the UV filter is an inorganic UV filter. Particularly preferably, the sunscreen is an inorganic UV filter.
[0039] In a preferred embodiment, the cosmetic formulation contains a pigment. The pigment may be a color pigment that imparts a color effect to the entire product, skin, or hair, or a gloss effect pigment that imparts a gloss effect to the entire product, skin, or hair. The color effect or gloss effect on the skin is preferably temporary, i.e., it lasts until the next face wash and can be removed by washing the skin with a regular body cleanser, face cleanser, body wash, face wash, etc., or by using a makeup remover, micellar water, or cleansing sheet. The color effect or gloss effect on hair may be temporary.
[0040] In at least one embodiment, the pigment particle size is 1 micron to 200 microns, preferably 3 microns to 150 microns, and more preferably 10 microns to 100 microns. The pigment is a colorant that is substantially insoluble in the application medium and may be inorganic or organic. Mixed inorganic-organic pigments are also possible. Inorganic pigments are preferred. The advantage of inorganic pigments is their excellent resistance to light, weather, and temperature. The inorganic pigment may be naturally derived. In at least one embodiment, the inorganic pigment is selected from the group consisting of chalk, ochre, umber, green earth, burnt sienna, graphite, and combinations thereof. The pigment may be a white pigment, such as titanium dioxide or zinc oxide; a black pigment, such as black iron oxide; a colored pigment, such as ultramarine red iron oxide or yellow iron oxide; a luster pigment; a metallic effect pigment; a pearlescent pigment; or a fluorescent or phosphorescent pigment.
[0041] In at least one embodiment, the pigment is selected from the group consisting of metal oxides, hydroxides and oxide hydrates, mixed phase pigments, sulfur-containing silicates, metal sulfides, complex metal cyanides, metal sulfates, chromates and molybdates, and the metals themselves (bronze, silver, gold pigments), and combinations thereof. In at least one embodiment, the pigment is selected from the group consisting of titanium dioxide (CI 77891), black iron oxide (CI 77499), yellow iron oxide (CI 77492), red and brown iron oxide (CI 77491), manganese violet (CI 77742), ultramarine (sodium aluminum sulfosilicate, CI 77007, Pigment Blue 29), chromium oxide hydrate (CI 77289), Prussian blue (iron ferrocyanide, CI 77510), carmine (cochineal), and combinations thereof.
[0042] In at least one embodiment, the pigment is selected from the group consisting of pearlescent and colored pigments, which consist of single crystals such as mica, silica, bismuth oxide chloride, boron nitride, or titanium dioxide, or have a layered matrix structure based on mica, aluminum, aluminum oxide, titanium dioxide, silicon dioxide, silicates (e.g., calcium aluminum borosilicate, sodium calcium borosilicate, magnesium aluminum silicate, or sodium magnesium fluorosilicate), coated with a metal oxide (e.g., iron oxide, pigment dispersions such as, for example, chromium oxide, tin oxide, titanium dioxide) or a metal oxide chloride such as bismuth oxide chloride, or a metal hydroxide such as aluminum hydroxide, and optionally further colorants such as Prussian blue, ultramarine, or carmine, and the color can be determined by varying the layer thickness.
[0043] The pearlescent effect can be controlled by both the particle size and particle size distribution of the pigment population. Suitable particle size distributions include, for example, 2-50 μm, 5-25 μm, 5-40 μm, 5-60 μm, 5-95 μm, 5-100 μm, 10-60 μm, 10-100 μm, 10-125 μm, 20-100 μm, 20-150 μm, or less than 15 μm. A broad particle size distribution (e.g., 20-150 μm) produces a shimmering, radiant appearance, while a narrow particle size distribution (e.g., less than 15 μm) produces a uniform, silky appearance. In at least one embodiment, the pigment is selected from the group consisting of titanium dioxide (CI 77891), black iron oxide (CI 77499), yellow iron oxide (CI 77492), red and brown iron oxide (CI 77491), mica, silica, bismuth chloride oxide, and combinations thereof. In at least one embodiment, the pigment is selected from the group consisting of organic pigments such as sepia, gamboge, bone charcoal, Cassel brown, indigo, chlorophyll, or other plant pigments.
[0044] In at least one embodiment, the pigment is selected from the group consisting of synthetic organic pigments such as azo pigments, anthraquinoids, indigoids, dioxazines, quinacridones, phthalocyanines, isoindolinones, perylenes, perinones, metal complexes, alkali blues, and diketopyrrolopyrrole pigments. In at least one embodiment, the cosmetic formulation contains 0.1 to 50 wt %, preferably 0.5 to 40 wt %, more preferably 1.0 to 30 wt %, and particularly preferably 3.0 to 20 wt %, of the pigment, based on the total weight of the cosmetic formulation. In at least one embodiment, the cosmetic formulation contains 0.01 to 40 wt %, preferably 0.1 to 30 wt %, more preferably 0.5 to 20 wt %, and particularly preferably 1 to 10 wt %, of the pigment, based on the total weight of the cosmetic formulation. In at least one embodiment, the cosmetic formulation contains at least 3 wt %, preferably at least 10 wt %, more preferably at least 20 wt %, and particularly preferably at least 30 wt %, of the pigment, based on the total weight of the cosmetic formulation.
[0045] In a preferred embodiment, the cosmetic preparation comprises a sunscreen. In a preferred embodiment, the sunscreen is selected from titanium dioxide, mica titanium oxide, iron oxide, mica iron oxide, zinc oxide, silicon oxide, ultramarine, and chromium oxide. The cosmetic preparation may, for example, comprise titanium dioxide, mica titanium oxide, iron oxide, mica iron oxide, zinc oxide, silicon oxide, ultramarine, or chromium oxide as a pigment and sunscreen.
[0046] In at least one embodiment, the cosmetic formulation contains 0.01 to 30 wt%, preferably 0.05 to 20 wt%, more preferably 0.1 to 15 wt%, and particularly preferably 1 to 10 wt%, of a sunscreen, based on the total weight of the cosmetic formulation. In at least one embodiment, the cosmetic formulation contains 0.01 to 40 wt%, preferably 0.05 to 30 wt%, more preferably 0.1 to 20 wt%, and particularly preferably 1 to 15 wt%, of a sunscreen, based on the total weight of the cosmetic formulation. In at least one embodiment, the cosmetic formulation contains at least 2 wt%, preferably at least 3 wt%, more preferably at least 5 wt%, and particularly preferably at least 10 wt%, of a sunscreen, based on the total weight of the cosmetic formulation.
[0047] In a preferred embodiment, the cosmetic formulation contains a granular material. Suitable granular materials are, for example, solid and particulate materials at room temperature (25°C). In at least one embodiment, the granular material is selected from the group consisting of silica, silicates, aluminates, clay, mica, kaolin, montmorillonite, insoluble salts, particularly insoluble inorganic metal salts, metal oxides such as titanium dioxide and zinc oxide, minerals, and insoluble polymer particles. In at least one embodiment, the granular material is selected from the group consisting of silica (silica gel, silicon dioxide) and metal salts, particularly inorganic metal salts. Metal salts are, for example, alkali metal or alkaline earth metal halides such as sodium chloride or potassium chloride, or alkali metal or alkaline earth metal sulfates such as sodium sulfate or magnesium sulfate. In at least one embodiment, the cosmetic formulation contains 0.01 to 10 wt. %, preferably 0.05 to 5 wt. %, and particularly preferably 0.1 to 3 wt. % of the particulate material, based on the total weight of the cosmetic formulation.
[0048] In a preferred embodiment, the cosmetic formulation comprises an emollient, which in at least one embodiment is selected from triglycerides, esters, oils, butters, waxes, hydrocarbons, silicones, and mixtures thereof. In at least one embodiment, the emollient is chosen from caprylic / capric triglyceride, C12-C15 alkyl benzoate, castor oil, hydrogenated castor oil, lauryl / myristyl polyricinoleate, polyglyceryl-3-polyricinoleate, glyceryl oleate, glyceryl rosinate, coco-caprylate / caprate, hydrogenated ethylhexyl olivate, olive oil unsaponifiables, hydrogenated olive oil unsaponifiables, Abyssinian oil, macadamia nut / tetraphylla seed oil, cottonseed oil, grape seed oil, squalane, carnauba wax, beeswax, candelilla wax, shea butter, tucuma butter, cocoa seed butter, petrolatum, alkoxylated fatty alcohols, dimethicone, cyclomethicone, and mixtures thereof. In at least one embodiment, the cosmetic formulation comprises 1 to 90 wt. %, preferably 5 to 50 wt. %, and particularly preferably 5 to 30 wt. % of an emollient, based on the total weight of the cosmetic formulation.
[0049] In a preferred embodiment, the cosmetic formulation is a leave-on skin care formulation. In a preferred embodiment, the cosmetic formulation is a color cosmetic formulation, a moisturizer, or a sunscreen. The moisturizer is preferably a skin moisturizer. In a preferred embodiment, the cosmetic formulation is a moisturizer, preferably a skin moisturizer. In a preferred embodiment, the cosmetic formulation is a color cosmetic formulation or a sunscreen. In a particularly preferred embodiment, the cosmetic formulation is a color cosmetic formulation. In a particularly preferred embodiment, the cosmetic formulation is a sunscreen.
[0050] The present invention also relates to a compound comprising: (A) a compound X selected from glyceryl ethers, sorbitan esters, isosorbide esters, and compounds of formula (I): and [ka] wherein R is selected from saturated hydrocarbon chains having 5 to 23 carbon atoms, unsaturated hydrocarbon chains having 5 to 23 carbon atoms, and mixtures thereof. (B) Emollients The present invention relates to a combination including:
[0051] Preferred compounds X are further described above. Preferred emollients are further described above.
[0052] The following examples are intended to illustrate, but not limit, the present invention. [Example]
[0053] Unless otherwise specified, % means % by weight. material CCT: Caprylic / Capric Triglyceride. CCT is known as an emollient. Velsan® CGE is commercially available from Clariant Chemical name: Caprylyl glyceryl ether. Velsan® EHG is commercially available from Clariant Chemical name: Ethylhexylglycerin. Velsan® SC is commercially available from Clariant Chemical name: sorbitan caprylate.
[0054] Example 1: Pigment wetting The viscosity of a pigment dispersion in oil is negatively correlated with the dispersion efficiency of the carrier material. Therefore, a decrease in viscosity indicates the uniformity of the dispersion. To calculate the viscosity difference between the pure carrier material without added pigment and the pigment dispersion, use the following formula: Viscosity difference rate = (viscosity value after pigment dispersion - viscosity value before pigment dispersion) / (viscosity value before pigment dispersion) The lower the viscosity difference ratio, the better the pigment is wetted.
[0055] The lower the viscosity difference, the better the pigment wetting. A mixture of 64% emollient (CCT), 1% preservative booster (Velsan CGE or Velsan EHG), and 35% pigment (red iron oxide, yellow iron oxide, or titanium dioxide) was homogenized (Ultra-Turrax, 13,000 rpm for 2 minutes) and analyzed (rheometer: HAAKE Mars III, plate P35 Ti L - 14048 (plate-and-plate method, 0.200 mm gap), average of three measurements: set temperature 20.0°C, shear rate 10.01 / s, 30.0 seconds).
[0056] [Table 1]
[0057] Velsan CGE exhibits excellent pigment wetting. These results indicate that Velsan CGE is a very useful additive for color cosmetics and mineral sunscreen applications. Velsan EHG also exhibits similarly good results and is suitable for these applications.
[0058] Example 2: Particle size A mixture of 64% emollient (CCT), 1% preservative booster (Velsan CGE, Velsan EHG or Velsan SC) and 35% pigment (red iron oxide, yellow iron oxide or titanium dioxide) was homogenized (Ultra-Turrax, 13000 rpm for 2 minutes) and analyzed using a grindometer (measurement (next day): average of three measurements with a grindometer (0-100 μm, Thierry).
[0059] [Table 2]
[0060] Velsan CGE has a smaller average particle size and exhibits superior pigment dispersion compared to pure CCT. These results indicate that Velsan CGE is highly useful in color cosmetics and mineral sunscreen applications. Velsan EHG and Velsan SC also show similarly good results and are suitable for these applications. In conclusion, Caprylyl Glyceryl Ether, Ethylhexylglycerin, or Sorbitan Caprylate can be used not only as a preservative booster, but also as a wetting agent and / or dispersing agent for pigments or inorganic UV filters.
[0061] Example 3: Cosmetic preparations A lipstick was prepared using the following ingredients:
[0062] [Table 3]
[0063] procedure: Mix the IA ingredients and heat to 80°C. II. Mix ingredients B. III. Add II to I and stir with a propeller stirrer at a maximum speed of approximately 200 rpm until the pigment is completely wetted. The temperature should be kept above 60°C. Add IV.C to III and stir until homogenous. V. Pour the mixture into lipstick molds and allow to cool.
[0064] Technical data: Viscosity (20℃, 20rpm): Solid Appearance: Red lipstick Stability: Stable for 12 weeks at room temperature and 40°C
[0065] Example 4: Cosmetic Formulation A tinted day cream was prepared using the following ingredients:
[0066] [Table 4]
[0067] procedure: Combine Phase IA ingredients and heat to 80°C. II. Combine Phase B ingredients and heat to 80°C. III. Mix Phase C ingredients separately. IV. Once at temperature, add phases III and D to II and homogenize with an Ultraturrax. V. Using the Ultraturrax, add IV to I. Then switch to a finger stirrer and stir until the temperature reaches 35-45°C. VI. Add Phase E ingredients to V and stir until room temperature. VII. Adjust the pH to 5.3-5.8
[0068] Formulation Details / Stability: pH: 5.0~5.5 ·Viscosity: 18000mPas Appearance: Light beige cream Stability: Stable for 8 weeks at room temperature, 40℃, and 0℃ Challenge test DIN ISO 11930: Passed
[0069] Example 5: Cosmetic Formulation A Mineral Sun Defense SPF 20 (calculated SPF) was prepared using the following ingredients:
[0070] [Table 5]
[0071] procedure: Mix the IA until the gel is uniform. Adjust the pH to 5.5 and heat to 85°C. Mix II.B and heat to 85°C. III. Add C to A. IV. Add II to III and mix at high speed until uniform. V. Cool with stirring and add D and E at 35°C.
[0072] Formulation Details / Stability: pH: 7.4 Appearance: White cream Stability: Stable for 12 weeks at room temperature, 40℃, and 0℃ Challenge test DIN ISO 11930: Passed
Claims
1. Use of a compound X selected from glyceryl ethers, sorbitan esters, isosorbide esters, and compounds of the following formula (I) as a wetting agent and / or dispersing agent. 【Chemistry 1】 wherein R is selected from saturated hydrocarbon chains having from 5 to 23 carbon atoms, unsaturated hydrocarbon chains having from 5 to 23 carbon atoms, and mixtures thereof.
2. 10. The use of claim 1, wherein the wetting agent is a pigment wetting agent, a sunscreen wetting agent, or a particulate matter wetting agent.
3. 3. The use of claim 1 or 2, wherein the dispersant is a pigment dispersant, a sunscreen dispersant, or a particulate dispersant.
4. The use according to any one of claims 1 to 3, wherein compound X is selected from glyceryl ethers, sorbitan esters, isosorbide esters, preferably glyceryl ethers.
5. The use according to any one of claims 1 to 4, wherein the glyceryl ether is a monoether or diether of glycerin and one or more C6 to C20 fatty alcohols, preferably a monoether or diether of glycerin and one or more C8 to C14 fatty alcohols, particularly preferably a monoether of glycerin and one or more C8 fatty alcohols.
6. The use according to any one of claims 1 to 5, wherein the sorbitan ester is a monoester, diester, or triester of sorbitan and one or more C6 to C20 fatty acids, preferably a monoester or diester of sorbitan and one or more C8 to C14 fatty acids, particularly preferably a monoester or diester of sorbitan and caprylic acid.
7. 7. The use according to any one of claims 1 to 6, wherein the sorbitan ester is selected from sorbitan caprylate, sorbitan stearate, sorbitan olivate, sorbitan oleate, sorbitan caprate, sorbitan laurate, sorbitan myristate, sorbitan caproate and mixtures thereof, preferably sorbitan caprylate.
8. The use according to any one of claims 1 to 7, wherein the isosorbide ester is a monoester or diester of isosorbide and one or more C6 to C20 fatty acids, preferably a monoester or diester of isosorbide and one or more C8 to C14 fatty acids, particularly preferably a monoester or diester of isosorbide and caprylic acid.
9. 9. The use according to any one of claims 1 to 8, wherein the isosorbide ester is selected from isosorbide caprylate, isosorbide stearate, isosorbide olivate, isosorbide oleate, isosorbide caprate, isosorbide laurate, isosorbide myristate, isosorbide caproate, and mixtures thereof, preferably isosorbide caprylate.
10. The use according to any one of claims 1 to 9, wherein R in formula (I) is selected from saturated hydrocarbon chains having 5 to 17 carbon atoms, unsaturated hydrocarbon chains having 5 to 17 carbon atoms, and mixtures thereof, preferably from saturated hydrocarbon chains having 5 to 13 carbon atoms, unsaturated hydrocarbon chains having 5 to 13 carbon atoms, and mixtures thereof, particularly preferably from saturated hydrocarbon chains having 7 to 9 carbon atoms, unsaturated hydrocarbon chains having 7 to 9 carbon atoms, and mixtures thereof.
11. Use according to any of claims 1 to 10, wherein compound X is used in a cosmetic preparation, preferably in a skin care or hair care preparation.
12. The use of any of claims 1 to 11, wherein the cosmetic formulation comprises a pigment, a sunscreen, or a particulate material.
13. The use according to any one of claims 1 to 12, wherein the cosmetic formulation comprises an emollient.
14. (A) a compound X selected from glyceryl ethers, sorbitan esters, isosorbide esters, and compounds of formula (I): 【Chemistry 1】 wherein R is selected from saturated hydrocarbon chains having from 5 to 23 carbon atoms, unsaturated hydrocarbon chains having from 5 to 23 carbon atoms, and mixtures thereof. (B) an emollient; Combinations including: