EMULSION COMPOSITIONS CONTAINING A UV-ABSORBING SYSTEM INCLUDING A PHYSICAL UV-ATTENUATING MATERIAL AND A PARTICULAR MATERIAL
Emulsion compositions with a UV-absorbing system and particulate materials address the challenge of high UV protection without greasiness or whitening, offering stable, pleasant, and effective UV protection with sensory and optical benefits.
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Utility models
- Current Assignee / Owner
- LOREAL SA
- Filing Date
- 2024-12-10
- Publication Date
- 2026-06-12
AI Technical Summary
Existing sunscreen compositions struggle to provide high UV protection without being greasy or leaving white marks, while balancing UVA and UVB protection, and offering pleasant sensory and optical benefits.
Emulsion compositions containing a UV-absorbing system with a physical UV attenuating material and a particulate portion, including spherical and amorphous particulates, along with a surfactant and thickening system, to create a non-greasy, non-whitening formula with broad-spectrum UV protection.
The compositions offer stable, non-greasy, and non-whitening UV protection with SPF of at least 25, providing enhanced sensory and optical benefits like blurring and matte finish without the white cast.
Abstract
Description
Title of the Invention: Emulsion Compositions Containing a UV Absorbing System Including a Physical UV Attenuating Material and a Particular Material Field of the Invention
[0001] The present disclosure relates to emulsion compositions comprising a UV absorbing system (component) comprising at least one physical ultraviolet (UV) attenuating material and a particulate portion (component) comprising at least one substantially spherical particulate material and at least one amorphous particulate material, as well as methods of making and using such compositions. Discussion of the Background
[0002] Exposure to radiation with wavelengths between 290 nm and 400 nm, known as UV radiation or simply "UVR," is implicated in a number of skin diseases and conditions. Exposure to radiation with wavelengths between 290 and 320 nm, also known as UVB radiation, can lead to numerous adverse changes in the biomechanical properties, appearance, and health of the epidermis, resulting in erythema (sunburn), immediate darkening of the skin, the appearance of wrinkles leading to premature skin aging (i.e., photoaging), and various other skin health problems that may include melanoma or other photocancers of the skin.
[0003] UVA rays with wavelengths between 320 and 400 nm penetrate the skin more deeply than UVB rays. Exposure to UVA rays can cause immediate and persistent tanning of the skin, as well as other changes in skin texture or appearance. Daily exposure to UVA rays, even for a short period under normal conditions, can damage collagen and elastin fibers, resulting in changes in the skin's microrelief, the appearance of wrinkles, and uneven pigmentation (spots, uneven skin tone).
[0004] Numerous studies show the need for effective protection against UVA and UVB to prevent sunburn, photoaging and other skin conditions or diseases related to UVR exposure.
[0005] In order to obtain a product with high protection against UVR, it is generally necessary to combine a large number of sunscreens and / or a large quantity of UV filters to achieve high levels of filtration efficiency.
[0006] However, high levels of UV filters do not lend themselves to the easy formulation of stable compositions with a pleasant texture. It is possible to obtain high UV protection using one or more organic UV filters; however, organic UV filters are often very greasy and unpleasant when applied to the skin, particularly when used at high levels in a sunscreen formulation required for high UV protection efficacy.
[0007] Mineral UV filters such as titanium dioxide or zinc oxide are alternative UV filters to organic UV filters that can provide more pleasant textures; however, when one or more mineral UV filters are used, the resulting sunscreen formulation is far too whitening (leaving "white streaks") when applied to the skin. When mineral UV filters are used at lower levels, it may be possible to produce sunscreen formulations with little or no whitening when applied to the skin; however, such formulations, containing low levels of mineral UV filters, are unable to produce the desired high levels of UV protection.
[0008] Finally, it can be difficult to combine an organic UV filter and a mineral UV filter in a single composition, especially in order to obtain a non-greasy, pleasant, non-whitening and high UV protection sunscreen formulation, particularly taking into account the need to balance the effectiveness of UVA and UVB protection.
[0009] It is becoming increasingly important for sunscreen compositions to offer high UVR protection while maintaining a pleasant and easy application to the skin. Preferably, sunscreen compositions can also provide additional optical effects, such as blurring or mattifying properties when applied to the skin without causing a white cast.
[0010] There remains a need in the art of improved fluid sunscreen compositions which have high UV protection and balanced UVA and UVB protection, which are stable, not greasy, are pleasant to apply, provide additional sensory and optical benefits and do not leave white marks when applied to the skin.
[0011] Therefore, one aspect of the present disclosure is a stable fluid composition that is not greasy, does not whiten when applied to the skin, provides additional sensory and optical benefits, and exhibits high UV protection. Summary of the invention
[0012] This disclosure relates to emulsion compositions comprising a UV-absorbing system including at least one physical ultraviolet (UV) attenuating material, and a particulate portion (a component) including at least one substantially spherical particulate material and at least one amorphous particulate material. Preferably, the emulsion compositions further comprise (1) a surfactant system including at least one high HLB surfactant and / or (2) a thickening system including at least one anionic polysaccharide thickening agent, at least one homopolysaccharide, and / or at least one amphiphilic thickening agent. Preferably, the compositions are non-greasy and / or non-whitening (i.e., the compositions do not leave white residue) upon application. Preferably, the compositions provide broad-spectrum UV protection.Preferably, the compositions offer SPF protection of at least 25, preferably at least 30.
[0013] This disclosure also relates to processes for the treatment, care, protection, enhancement of appearance and / or makeup of keratinous material, including the application of compositions of this disclosure to keratinous material in sufficient quantity to treat the keratinous material, care for it, enhance its appearance and / or make it up.
[0014] This disclosure also relates to methods for manufacturing emulsion compositions comprising at least one ultraviolet (UV) attenuating physical material by combining at least one ultraviolet (UV) attenuating physical material, at least one substantially spherical particulate material, and at least one amorphous particulate material during the formation of the compositions. Preferably, the methods further comprise the combination of (1) at least one high HLB surfactant, and / or (2) at least one anionic polysaccharide thickening agent, at least one homopolysaccharide, and / or at least one amphiphilic thickening agent, during the formation of the emulsion compositions. Preferably, the compositions are non-greasy and / or non-whitening (i.e., the compositions do not leave white residue) upon application. Preferably, the compositions provide broad-spectrum UV protection.Preferably, the compositions offer SPF protection of at least 25, preferably at least 30.
[0015] It must be understood that both the preceding general description and the following detailed description are merely illustrative and explanatory and do not limit disclosure. DETAILED DESCRIPTION OF THE INVENTION
[0016] In the following description and the claims annexed thereto, it shall be understood that the terms used have their ordinary and usual meanings in the art, unless otherwise specified.
[0017] “Approximately”, as used herein, means to within 10% of the number indicated (for example, “ "Approximately 10%" means from 9% to 11% and "approximately 2%" means from 1.8% to 2.2%.
[0018] “Matteness” as used herein refers to substantial specular reflection The minimum of a surface or material, including the absence of such specular reflection. Specular reflection is calculated directly from the ratio of incident light (light striking an object) to reflected light (light bouncing off an object) and forms the basis for standardizing and measuring gloss values. To determine quantitative values of matteness, an instrument called a glossmeter can be used. The instrument shines light onto a surface at various angles of incidence and determines the amount of reflected light using detectors. The results are provided as gloss values, given in gloss units (GU) on a scale of 0 to 100, which is calibrated with a polished black surface equivalent to 100 GU, and 0 GU representing a perfectly matte surface.Ideally, the glossmeter operator would measure the GU values at different angles of light incidence on a given surface to determine the level of matteness or matte effect. An angle of incidence of 20° is best suited for glossy surfaces represented by 100-70 GU, an angle of incidence of 60° is best suited for semi-gloss surfaces represented by 70-10 GU, and an angle of incidence of 85° is best suited for matte surfaces represented by 10 GU or less.
[0019] “Mat” in compositions as used herein refers to compositions having little or no specular reflection. For example, matte compositions may have medium gloss properties, measured at a value less than or equal to 10, for example 9, preferably less than or equal to 8, 6, 5, 4 or 1, including all intermediate ranges and sub-ranges such as 1 to 10, 1 to 5, 2 to 10, 3 to 8, less than 1, less than 3, less than 5, etc.
[0020] To determine the matte properties, films of the tested compositions can be deposited onto a BYK 2A paint test varnish card using a 1 MIL necking bar and an automatic necking machine. The films can then be dried at room temperature for 5 minutes and subsequently analyzed using a glossmeter (BYK: micro-TRLgloss) at a desired angle, such as 85° for matte compositions.
[0021] “Fluid composition”, as used herein, refers to a composition that is not not solid at room temperature (25 °C) and whose viscosity can be measured. The term "fluid" refers to a liquid composition that flows under its own weight at room temperature (25 °C) and atmospheric pressure. Advantageously, a The fluid composition according to this disclosure has a viscosity at 25 °C of less than 2000 mPa.s. According to preferred embodiments, the viscosity at 25 °C is less than 1000 mPa.s, preferably less than 500 mPa.s, and preferably less than 400 mPa.s.
[0022] “Artistic blur” or “blurring” as used herein refers to compositions which are capable of blurring or reducing the appearance of fine lines, wrinkles or pores when applied to the skin, typically through an optical effect of increasing light diffusion.
[0023] “Film-forming”, “film-forming polymer” or “film-forming agent” as used herein means a polymer or resin that is capable of leaving a film on the substrate to which it is applied, for example, after a solvent accompanying the film-forming agent has evaporated, been absorbed into the substrate and / or dissipated on it.
[0024] “Substitute” as used herein means comprising at least one substitute. Non-limiting examples of substituents include atoms, such as oxygen and nitrogen atoms, as well as functional groups, such as hydroxyl groups, ether groups, alkoxy groups, acyloxyalkyl groups, oxyalkylene groups, polyoxyalkylene groups, carboxylic acid groups, amine groups, acylamino groups, amide groups, halogen-containing groups, ester groups, thiol groups, sulfonate groups, thiosulfate groups, siloxane groups, and polysiloxane groups. The substituent(s) may, in addition, be substituted.
[0025] “Volatile”, as used here, means having a flash point of less than about 115 °C.
[0026] “Non-volatile”, as used here, means having a flash point greater than approximately 115 °C.
[0027] “Polymer” as used herein means a compound that is made up of at least two monomers.
[0028] “Exempt” or “substantially exempt” or “devoid of”, as used herein This means that, although it is preferable for no quantity of the specific component to be present in the composition, it is possible for very small quantities of it to be present in the compositions of the disclosure, provided that these quantities do not materially affect at least one, preferably most, of the advantageous properties of the compositions of the disclosure. Thus, for example, "oil-free" means that an effective quantity (i.e., greater than trace amounts) of oil(s) is omitted from the composition (i.e., about 0% by weight), "substantially oil-free" means that one or more oils are present in quantities not exceeding 0.1% by weight, and "oil-free" means that one or more oils are present in quantities not exceeding 0.25% by weight, based on the total weight of the composition. The same nomenclature applies to all Other ingredients identified throughout the application and in this paragraph, such as, for example, specific UV filters and / or surfactants (the compositions in the disclosure that are "free of oxybenzone and / or octinoxate," "substantially free of oxybenzone and / or octinoxate," and "devoid of oxybenzone and / or octinoxate," as well as "free of surfactants," "substantially free of surfactants," and "devoid of surfactants" have meanings consistent with the discussion in this paragraph), even if they are not specifically mentioned for each ingredient identified in the application. The examples cited of the use of such language as that in this paragraph are intended to be provided by way of example, not limitation.
[0029] “UV filters” as used herein refers to active sunscreen agents approved by a government regulatory agency such as the Food and Drug Administration (FDA) in the United States or the European Commission in Europe and include organic UV filters such as avobenzone, octocrylene, benzophenones, benzotriazoles and merocyanines, as well as physical ultraviolet (UV) attenuation materials.
[0030] “Whitening” or “white marks” as used herein refers to the appearance The visually white appearance of the keratinous substance after a composition has been applied to the keratinous material compared to the appearance of the keratinous material before application of the composition. A composition is "non-bleaching" if it provides a minimal or no visually white appearance (preferably no visually white appearance) of the keratinous material upon application.
[0031] “Anhydrous” as used here means that the compositions of the disclosure contain less than 3% water, which means that compositions can also contain less than 2% water, and less than 1% water, as well as be "water-free", "substantially water-free" and "water-free".
[0032] A “UV-absorbing system containing essentially at least one physical ultraviolet (UV) attenuating material,” as used herein, means that the disclosure compositions contain less than 3% of UV filters other than physical ultraviolet (UV) attenuating materials, in particular less than 3% of organic UV filters, which means that, within the framework of this definition, by way of subcategories, we find compositions containing less than 2% of UV filters other than physical ultraviolet (UV) attenuating materials, in particular less than 2% of organic UV filters, and less than 1% of UV filters other than physical UV attenuating materials, in particular less than 1% of organic UV filters, as well as those “free of UV filters other than a physical ultraviolet (UV) attenuating material,”"substantially free of UV filters other than a physical ultraviolet (UV) attenuating material" and "devoid of, UV filters other than a physical ultraviolet (UV) attenuating material” as defined above.
[0033] “System” and “component” are used interchangeably in the present request.
[0034] “Primary particle” as used in relation to the description of the material Ultraviolet (UV) attenuation physics here refers to inorganic or organic particles (structures) that can be held together by molecular or atomic bonding to form an ultraviolet (UV) attenuation physics material.
[0035] “Primary particle size” means the size of a non-aggregated primary particle in a physical material for attenuating ultraviolet (UV).
[0036] “Passive” as used in relation to the description of a physical material Ultraviolet (UV) attenuation here refers to a material that has been treated in such a way that the potential for the release of ionic species when in contact with water is reduced compared to the same non-passivated material.
[0037] “Keratinous materials” or “keratinous substance” means nails (nails of the fingers and / or toes), skin such as the body, face and eye area, scalp, keratinous fibers such as eyelashes, eyebrows and hair and mucous membranes such as lips.
[0038] “Physiologically acceptable” means compatible with keratinous materials and having a pleasant color, smell and feel, and which does not cause unacceptable discomfort (tingling or pulling) likely to discourage a consumer from using the composition.
[0039] “UV protection efficiency” or “filtration efficiency” in the context of This disclosure is evaluated based on one or more of the following: FPS, FPUVA, critical wavelength, and UVA-I / UV ratio.
[0040] The "SPF" (Sun Protection Factor) measures the level of protection against erythema provided by a composition. The SPF value corresponds to the ratio between the minimum erythematous dose (MED) measured on skin covered with the composition and the MED measured on bare skin. The term "SPF" is known in the art of sunscreens and is defined, for example, in "A new substrate to measure sunscreen protection factors throughout the ultraviolet spectrum," J. Soc. Cosmet. Chem., 40, 127-133 (May / June 1989).
[0041] The evaluation of the SPF (Sun Protection Factor) can be carried out, for example, in vitro with a spectrophotometer from Labsphere (North Sutton, NH, USA). In such an evaluation, the plate is the material to which the composition under test is applied. For such an evaluation, polymethacrylate plates of Methyl (PMMA) can be used. An example of an acceptable protocol is currently undergoing ISO accreditation under the name ISO Committee Draft 23675.
[0042] The evaluation of the sun protection factor (SPF) can also be performed in vivo in accordance with ISO 24444:2019 “Cosmetics-Sun protection test methods-In-vivo determination of the sun protection factor (SPF).” It can also be determined in accordance with FDA protocols, as described in the document “Labeling and Effectiveness Testing; Sunscreen Drug Products for Over-the-Counter Human Use” published in the U.S. Federal Register on May 7, 2011 (https: / / www.federalregister.gov / d / 2011-14766); 21 CFR Part 352 Subpart D § 352.72, updated and revised by the 2011 publication in the Federal Register.
[0043] “UVA protection factor” refers to an index characterizing the UVA protection provided by a composition. For example, the UVA protection factor (UPPF) can be measured in vivo according to the "PPD" (Persistent Pigment Darkening) method of the ISO-24442:2022 protocol, measuring the skin color observed 2 to 4 hours after UVA exposure. It can also be determined according to FDA protocols, as described again in 21 CFR Part 352 Subpart D § 352.72 as mentioned above in relation to SPF.
[0044] UVA protection can also be assessed in vitro using the Labsphere® spectrophotometer under conditions such as those mentioned above in relation to the SPF. ISO 24443:2021 describes such an in vitro procedure.
[0045] FDA broad-spectrum test procedures, particularly "critical wavelength" test procedures, are also available in 21 CFR Part 352 Subpart D § 352.72. In addition, broad-spectrum test procedures include the determination of the UVA1 / UV ratio as described in "Sunscreen Drug Products for Over-the-Counter-Human-Use" published in the Federal Register https: / / www.federalregister.gov / documents / 2019 / 02 / 26 / 2019-03019 / sunscreen-drug-products-for-over-the-counter-human-use.
[0046] According to this disclosure, the compositions in this disclosure preferably have one or more of the following properties:
[0047] The compositions have a critical wavelength, as determined by FDA critical wavelength procedures, of at least 370 nm;
[0048] The compositions have an FPS value of at least 15, preferably at least 30, preferably at least 50 and preferably at least 70;
[0049] The compositions have an FPUVA / FPS ratio of at least 1 / 3, and preferably of at least 2 / 5 and / or
[0050] The compositions have a UVA1 / UV ratio of 0.7 or more, preferably 0.75 or more, and preferably 0.8 or more.
[0051] “Makeup result”, as used herein, refers to compositions where The color remains the same or substantially the same as at the time of application, as observed with the naked eye, after a prolonged period. The "makeup result" can be evaluated by assessing the long-lasting properties using any method known in the art for evaluating such properties. For example, long-lasting performance can be assessed by a test involving the application of a composition to a keratinous material such as skin and evaluating the color of the composition after a prolonged period. For example, the color of a composition can be evaluated immediately after application to a keratinous material such as skin, and these characteristics can then be re-evaluated and compared after a certain duration. Furthermore, these characteristics can be evaluated in relation to other compositions, such as commercially available compositions.
[0052] “Natural” as in the expression “natural compound” means any compound derived directly from a natural substance such as a plant without having undergone chemical modification.
[0053] “Compound of natural origin” means any compound derived from a natural compound which has undergone one or more chemical modifications, for example by organic synthesis reaction, without the properties of the natural compound having been modified.
[0054] “Synthetic compound” means any compound that is neither a natural compound nor a composed of natural origin.
[0055] “Room temperature” means approximately 20-25 °C.
[0056] “Atmospheric pressure” means approximately 760 mmHg, i.e. approximately 105 pascals.
[0057] “UV filter” and “sunscreen agent” are used interchangeably in the present request.
[0058] “Effectiveness against UV”, “UV effectiveness” and “Effectiveness of UV protection” are used interchangeably in this application.
[0059] The compositions and methods of the present invention may include, consist of, or consist essentially of the essential elements and limitations of the disclosure described herein, as well as any additional or optional ingredients, components, or limitations described herein or otherwise useful. For example, the UV (ultraviolet) absorbing system of the compositions in the disclosure may "consist essentially of" at least one physical ultraviolet (UV) attenuating material.
[0060] For the purposes of this disclosure, the "fundamental novel property" associated with the compositions, components and processes related to the properties that "consist essentially of" identified ingredients or actions is "matteness".
[0061] The compositions of this disclosure may be in any form suitable for use as a personal care composition, such as a stick, paste, cream, liquid, solid, etc. These compositions may be used for all personal care purposes in cosmetic and / or dermatological products such as, for example, sunscreen, foundation, lip balms, lipsticks, concealers, mascaras, leave-in hair products, eyeshadows, powders, etc.
[0062] Reference is made herein to trade names of materials, including, but not limited to, materials such as polymers and optional components. The materials are not intended to be limited by the materials described and referenced herein by a particular trade name. Equivalent materials (for example, those obtained from a different source under a different name or catalog number) to those referenced by a trade name may be substituted for and used in the processes described and claimed herein.
[0063] Unless otherwise stated, all percentages and ratios are calculated by weight. Unless otherwise stated, all percentages are calculated relative to the total weight of a composition. All component or composition rates refer to the active rate of that component or composition and are understood to be exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources. COMPOSITION UV attenuating physical material
[0064] According to this disclosure, compositions comprising at least one ultraviolet (UV) attenuating physical material are proposed. "UV attenuating physical material" as used herein refers to solid inorganic ingredients that absorb incoming ultraviolet (UV) light and may optionally scatter incoming ultraviolet (UV) light, when present in the compositions disclosed herein. The physical UV attenuation material preferably comprises one or more metal oxides such as, for example, oxides of titanium, chromium, zinc, tin, alumina, cerium and / or iron. Specific examples of suitable metal oxide(s) include, but are not limited to, at least one metal oxide selected from the group consisting of titanium dioxide, zinc oxide, iron oxide, chromium oxide, tin oxide, alumina, cerium oxide, and mixtures thereof.
[0065] The UV attenuating physical material may be subjected to a surface treatment agent to improve the sensoriality, performance, and / or compatibility of the compositions disclosed herein. Suitable surface treatment agents may include hydrophobic or hydrophilic surface treatment agents such as, for example, those described in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64, including, but not limited to, specific examples such as amino acids, beeswax, fatty acids, fatty acid salts, fatty alcohols, anionic surfactants, lecithin, lecithin derivatives, metal alkoxides, polyethylene, silicones, proteins, alkanolamines, silicon oxides, metal oxides, sodium hexametaphosphate, alumina, and / or glycerol. Preferably, the UV attenuating physical material is passivated.
[0066] Preferably, the UV attenuation physical material comprises one or more zinc oxides and / or titanium dioxides. Preferably, the UV attenuation physical material comprising one or more zinc oxides or titanium dioxides is passivated.
[0067] According to preferred embodiments, the UV attenuating physical material comprises titanium dioxide. The titanium dioxide may be present in any form in the compositions disclosed herein. Furthermore, the TiO2 may be treated (coated) or untreated.
[0068] According to preferred embodiments, the UV attenuation physical material comprises zinc oxide. The zinc oxide may be present in any form (for example, as wurtzite or zinc blende) in the compositions disclosed herein. Furthermore, the zinc oxide may be treated (coated) or untreated.
[0069] Preferably, the UV attenuation physical material comprises zinc oxide. Preferably, the zinc oxide is passivated.
[0070] Preferably, the UV attenuation physical material comprises titanium dioxide. Preferably, the titanium dioxide is passivated.
[0071] Preferably, the average primary particle size of the ultraviolet (UV) attenuating material is from 1 nm to 500 nm, preferably from 5 nm to 250 nm, preferably from 10 nm to 100 nm, and preferably from 20 nm to 50 nm, including all intermediate ranges and sub-ranges such as, for example, 25 nm to 40 nm, 10 nm to 75 nm and 15 nm to 150 nm.
[0072] Suitable examples of coated pigments include, but are not limited to, titanium dioxides that have been coated such as titanium dioxides:
[0073] - with hydrated silica, such as Tayca's MT-100WP product,
[0074] - with silica and iron oxide, such as the Sunveil F® product from Ikeda,
[0075] - with silica and alumina, such as the MT-500SA® and MT-100SA® products of Tayca and Tioveil™ AQ-N from Croda,
[0076] - with alumina, such as Ishihara's TTO-55 (A)® product,
[0077] - with alumina and aluminum stearate, such as MT-100TV® products, Tayca's MT-100Z® and MT-01®, Croda's Solaveil™ CT 100® and Merck's Eusolex T-AVO®,
[0078] - with silica, alumina and alginic acid, as the product Tayca MT-100AQ®,
[0079] - with alumina and aluminum laurate,
[0080] - with iron oxide and iron stearate,
[0081] - with zinc oxide and zinc stearate,
[0082] - with silica and alumina and treated with a silicone, like the products MTY-500SAS® or Microtitanium Dioxide MT-100SAS® from Tayca,
[0083] - with silica, alumina and aluminum stearate and treated with a silicone,
[0084] - with silica and treated with silicone,
[0085] - with silica and treated with a silicone, such as product TTO-55(S)® of Ishihara;
[0086] - with triethanolamine,
[0087] - with stearic acid, such as Ishihara's TTO-55 (C)® product,
[0088] - with sodium hexametaphosphate,
[0089] - with octyltrimethylsilane,
[0090] - with a polydimethylsiloxane, with anatase / rutile TiO2 treated with a polydimethylhydrogenosiloxane
[0091] - with triethylhexanoin, with aluminium stearate and with alumina sold under the trade name Solaveil™ CT-200 by Croda,
[0092] - with aluminum stearate, with alumina and with silicone, sold under the trade name Solaveil™ CT-12W by Croda,
[0093] - with lauroyl lysine and / or
[0094] - with C9-C15 fluoroalcohol phosphate and with aluminium hydroxide.
[0095] Other examples include TiO2 pigments doped with at least one transition metal such as iron, zinc, or manganese, preferably manganese. Preferably, the doped pigments are in the form of an oily dispersion. The oil in the oily dispersion is preferably selected from triglycerides such as, for example, capric / caprylic acids. The oily dispersion of titanium dioxide particles may also include one or more dispersants, for example, a sorbitan ester, such as sorbitan isostearate, or a polyoxyalkylated fatty acid ester of glycerol, such as tri-PPG-3 myristylether citrate and polyglyceryl-3 polyricinoleate. Preferably, the oily dispersion of titanium dioxide particles includes at least one dispersant selected from polyoxyalkylated fatty acid esters of glycerol. In particular, the oily dispersion of manganese-doped TiO2 particles in capric / caprylic acid triglyceride in the presence of tri-PPG-3 myristyl ether citrate and polyglyceryl-3 ricinoleate and sorbitan isostearate having the INCI name: titanium dioxide (and) TRI-PPG-3 myristyl ether citrate (and) polyglyceryl-3 ricinoleate (and) sorbitan isostearate, for example the product sold under the trade name Optisol™ OTP-1 by Croda.
[0096] Suitable uncoated titanium oxide includes, but is not limited to, those sold by Tayca under the trade names MT-500B or MT-600B®, or by Evonik under the name Degussa P 25.
[0097] Appropriate examples of uncoated zinc oxide include, but are not limited to, zinc oxide marketed under the name "Z-COTE"® by BASF, zinc oxide marketed under the name "NanoArc® Zinc Oxide" by Nanophase Technologies, zinc oxide marketed under the name "MZ-500", "MZ-300", "MZ-200" or "MZ-150" by TAYCA.
[0098] Treated (coated) zinc oxide compounds are compounds that have undergone one or more surface treatments of a chemical, electronic, mechanochemical and / or mechanical nature with compounds such as described, for example, in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64, such as amino acids, beeswax, fatty acids, fatty alcohols, anionic surfactants, lecithins, sodium, potassium, zinc, iron or aluminum salts of fatty acids, metal alkoxides (titanium or aluminum), polyethylene, silicones, hydrated silica, proteins (collagen, elastin), alkanolamines, silicon oxides, triethoxycaprylylsilane, metal oxides or sodium hexametaphosphate.
[0099] Examples of suitable coated zinc oxide include, but are not limited to, polymethylhydrogenosiloxane-coated zinc oxide; zinc oxide dispersed in Cl2-15 alkyl benzoate (INCI: Zinc Oxide (and) Cl2-15 Alkyl Benzoate (and) Polyhydroxystearic Acid (and) Isostearic Acid), marketed by Croda under the trade name Solaveil CZ-100; zinc oxide dispersions in C9-12 alkane with a dispersing agent, marketed under the trade name "DAITOPERSION Zn-60VA"® by Daito Kasei; silicone-grafted acrylic polymer-coated ZnO dispersed in cyclodimethylsiloxane, marketed under the name "SPD-Z5®" by Shin-Etsu; ZnO coated with hydrated silica, marketed by TAYCA under the name "MZ-500HP"; ZnO coated with hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone and hydrogenodimethicone (H-Me-Si), marketed by TAYCA under the name MZ-510 HPSX;ZnO coated with stearic acid or isostearic acid, such as those marketed by TAYCA under the name "MZ-505T", "MZY-505EX"; or "MZY-304EX"; silicone oil-coated ZnO, such as those marketed by TAYCA under the name "MZX-510HPS", "MZY-505S", "MZY-510M3S", "MZ-505M", "MZY-303S", "MZY-303M", "MZY-203S", "MZY-210M3S" or "MZY-153S"; triethoxycaprylylsilane-coated ZnO, such as those sold by BASF under the name Z-COTE HP1, or by TAYCA under the name "MZX-508OTS", "MZY-203OTS" or "MZX-304OTS" or by DSM under the name PARSOL ZX; for example: ZnO marketed under the brand name "Zinc Oxide CS-5" by Toshiba (ZnO coated with polymethylhydrosiloxane); ZnO marketed under the brand name "Nanogard Zinc Oxide FN" by Nanophase Technologies (in the form of a 40% dispersion in Finsolv TN, C12-C15 alkyl benzoate); ZnO marketed under the brand name "Daitopersion Zn-30" and "Daitopersion Zn-50" by Daito (dispersions in polydimethylsiloxane / oxyethylenated cyclopolymethylsiloxane comprising 30% or 50% of zinc nanooxides coated with silica and polymethylhydrosiloxane); ZnO marketed under the brand name "NFD Ultrafine ZnO" by Daikin (ZnO coated with perfluoroalkyl phosphate and a perfluoroalkylethyl copolymer dispersed in cyclopentasiloxane); ZnO marketed under the brand name "SPD-Z1" by Shin-Etsu (ZnO coated with a silicone-grafted acrylic polymer dispersed in cyclodimethylsiloxane); of ZnO marketed under the brand name "Escalol Z100" by ISP (ZnO treated with alumina dispersed in a copolymer mixture of ethylhexyl methoxycinnamate / PVP-hexadecene methicone); of ZnO marketed under the brand name "Fuji ZnO-SMS-10" by Fuji Pigment (ZnO coated with silica and polymethylsilsesquioxane);and ZnO marketed under the brand name "Nanox Gel TN" by Elementis (ZnO dispersed at 55% in C12-C15 alkyl benzoate with hydroxystearic acid polycondensate); ZnO marketed under the brand name Finex by SAKAI such as FINEX-50LP, FINEX-50S-LP2 and FINEX-30S-LPT (ZnO coated with hydrogenodimethicone); FINEX-33W (ZnO coated with hydrated silica), FINEX-52W-LP2 and FINEX-33W-LP2 (ZnO coated with hydrogenodimethicone and hydrated silica), FINEX-50-OTS and FINEX-30-OTS (ZnO coated with triethoxycaprylysilane).
[0100] Preferred zinc oxide coatings preferably comprise one or more of the following: hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl, hexyl dimethicone, hydrogenodimethicone and / or triethoxycaprylysilane.
[0101] According to preferred embodiments of this disclosure, the zinc oxide may be in the form of wafers, and may be coated or uncoated. Suitable examples of such forms are marketed by Croda under the name Solaveil (MicNo), such as Solaveil MXP3, MZP7, MZP8, MZ3-100, MZ3-300, and MZ7-100. Preferably, the zinc oxide wafers used according to this disclosure (1) have a median specific surface area of more than 25 square meters per gram, preferably greater than 30 square meters per gram, and / or (2) are transparent (i.e., transmission >30% at 600 nm). Suitable examples of such platelet shapes can also be found in US patent 11,608,275.
[0102] Suitable examples of other coated oxides include, but are not limited to, coated oxides preferably having amphiphilic properties such as:
[0103] - titanium oxides coated with cetyl phosphate and silica, such as the product " Eusolex® T-EASY” from Merck;
[0104] - titanium oxides coated with polyglyceryl-10 oleate and stearic acid, such as as “MTY-200STW” from Tayca;
[0105] - zinc oxides coated with polyglyceryl-10 oleate and isostearic acid, such as as “MZY-505EXW” from Tayca;
[0106] - titanium oxides coated with polysorbate 80 and isostearic acid, such as " Tayca's MT-10EXW; and
[0107] - zinc oxides coated with polysorbate 80 and isostearic acid, such as " Tayca's MZY-304EXW.
[0108] Preferably, the at least one ultraviolet (UV) attenuating physical material is present in the compositions of this disclosure in an amount of at least 5% by weight, preferably at least about 10% by weight, preferably at least about 12% by weight, preferably at least about 14% by weight, and preferably at least about 15% by weight, the upper end of the range of the at least one ultraviolet (UV) attenuating physical material present being preferably about 40% by weight (e.g., about 5 to 40%, about 10 to 40%, about 12 to 40%, etc.), preferably about 30% by weight (e.g., about 5 to 30%, about 10 to 30%, about 12 to 30%, etc.), preferably about 25% by weight (e.g., about 5 to 25%, about 10 to 25%, about 12 to 25%, etc.), and preferably about 20% by weight (for example, about 5 to 20%, about 10 to 20%, about 12 to 20%, etc.), all weights being based on the total weight of the composition.
[0109] According to preferred embodiments, the compositions of this disclosure contain a UV-absorbing system substantially comprising one or more physical ultraviolet (UV) attenuating material(s) as defined above. Particulate components
[0110] According to the present invention, compositions comprising a particulate portion are proposed. The particulate portion comprises particulate materials that are suspended or otherwise stabilized in the compositions of this disclosure. The particulate portion comprises at least one substantially particulate material spherical and at least one amorphous particulate material. Preferably, the at least one substantially spherical particulate material and the at least one amorphous particulate material provide the compositions of this disclosure with enhanced matte properties and / or enhanced artistic blurring properties.
[0111] According to preferred embodiments, the particulate material(s) is / are selected from silica powders; silicone resin powders, in particular polymethylsilsesquioxane powders; polytetrafluoroethylene powders; acrylic copolymer powders; hollow hemispherical silicone particles; hydrophobic silica aerogel particles; crosslinked organopolysiloxane elastomer powders; crosslinked organopolysiloxane elastomer powders coated with silicone resin; polyamide powders; starch powders; talc / TiO2 / alumina / silica composite powders; silica / TiO2 composites; spherical cellulose particles; clays; perlite; boron nitride, and mixtures thereof.
[0112] “Virtually spherical” as used here means an essentially spherical shape spherical, for example in the form of beads (hollow or solid), preferably insoluble in the medium of the compositions of this disclosure.
[0113] More specifically, appropriate examples include, but are not limited to:
[0114] - silica powders such as porous silica microparticles, for example Miyoshi SB150® silica beads and SB700® silica beads, with an average size of 5 pm; Asahi Glass's Sunspheres Series-H®, for example Sunsphere H33®, Sunsphere H51® and Sunsphere H53® with respective sizes of 3.5 and 5 pm; polydimethylsiloxane-coated amorphous silica microspheres, such as those sold under the name SA Sunsphere H-33® and SA Sunsphere H-53® by Asahi Glass; amorphous ellipsoidal hollow silica particles sold under the name Silica Shells® by Kobo;
[0115] - polytetrafluoroethylene (PTFE) powders, such as those sold under the name Ceridust 9205F® from Clariant;
[0116] - silicone resin powders, in particular powders of polymethylsilsesquioxane such as those bearing the INCI name: Polymethylsilsesquioxane, such as the products sold under the name Tospearl 145A® by GE Silicone;
[0117] - acrylic copolymer powders, in particular polymethyl powders (Meth)acrylate (PMMA), for example, Nihon Junyoki's Jurimer MBI® PMMA particles with an average size of 8 µm, hollow PMMA spheres sold under the name Covabeads LH85® by Sensient Cosmetic Technologies, PMMA particles with the trade name Ganzpearl GMP0820® from Ganz Chemical; hollow styrene / acrylate copolymer spheres, such as those sold under the name Sunspheres Powder® by Rohm & Haas; expanded vinylidene / acrylonitrile / methylene methacrylate microspheres sold under the name Expancel®; hollow crosslinked acrylate / ethylhexyl acrylate copolymer microspheres, such as the products sold by Daito Kasei Kogyo under the name Maquibeads SP-10®; acrylate / ethylhexyl acrylate copolymer microspheres, such as those sold by Serisui Plastics under the name Techpolymer ACP-8C®; spherical ethylene / methacrylate copolymer, such as the products sold by Kobo Products under the name Spherical Powder SE-3107;
[0118] - hollow hemispherical silicone particles, having the INCI name Methylsilanol / silicate crosspolymer, as described in applications JP-2003 128 788 and JP-A-2000-191789, for example NLK 500®, NLK 506® and NLK 510® from Takemoto Oil and Fat;
[0119] - hydrophobic silica aerogel particles (INCI name: Silica Silylate), such as the products sold by Dow Corning under the name Dow Corning VM-2270® Aerogel Fine Particles;
[0120] - crosslinked organopolysiloxane elastomer powders, such as Dow Corning 9701 Cosmetic Powder® from Dow Corning (INCI name: Dimethicone / vinyl dimethicone crosspolymer); or products sold by Dow Corning under the name EP-9801 Hydrocosmetic Powder® (INCI name: Dimethicone / vinyl dimethicone crosspolymer (and) butylene glycol);
[0121] - crosslinked organopolysiloxane elastomer powders coated with resin silicone, in particular silsesquioxane resin, as described, for example, in US patent 5,538,793. Such elastomer powders are available under the names KSP-100®, KSP-101®, KSP-102®, KSP-103®, KSP-104® and KSP-105® with the INCI name: Vinyl dimethicone / methicone silsesquioxane crosspolymer and sold by the company Shin-Etsu; or products bearing the INCI name: vinyl dimethicone / methicone silsesquioxane crosspolymer treated with PEG-7 glyceryl cocoate, polyquaternium-7 cocoate and tri-PEG-8 methylsilanol glyceryl sold by the company Miyoshi Kasei under the name MW-SRP-100®;
[0122] - spherical cellulose particles, such as those sold by the company Daito Kasei under the name Cellulobeads USF® such as Cellulo Beads D-5, Cellulo Beads D-10, and Cellulo Beads D-30, or the company LCW under the trade name Covabeads CLO;
[0123] - spherical polyethylene particles, such as those sold by Sumitomo Seika America under the name Spherical Powder LE-1080.
[0124] - spherical boron nitride particles, such as those sold by Advanced Ceramic Materials (ACM) Corporation under the names SSBN-60, SSBN-100, SSBN-120 and SSBN-160; and / or
[0125] - polyamide (Nylon®) powders, for example Nylon 12 particles of the type Orgasol® such as Orgasol 2002 EXD NAT COS® and Orgasol 2002 UD NAT COS® from the company Arkema.
[0126] According to preferred embodiments, the substantially spherical particulate material is in the form of microbeads. "Microbeads" here refers to solid or porous particles, i.e., microparticles rather than microcapsules, having a circularity parameter of at least 0.95. The circularity parameter is defined as the ratio between the circumference of a disk having the same surface area as the particle and the perimeter of the particle. A value of 1 characterizes perfectly spherical particles.
[0127] Suitable microbeads are such that at least 90%, in numerical terms, have a diameter less than or equal to 15 µm, preferably less than or equal to 10 µm, preferably between 0.1 and 10 µm, and preferably between 0.5 and 10 µm. The particle size distribution can be measured using an FPIA 2100 image analysis particle size analyzer from Malvem.
[0128] "Amorphous" particulate materials do not have a required shape, except that they are not substantially spherical. Therefore, amorphous particulate materials can be in lamellar (or platelet) form, in fiber form, or in any other form that is not substantially spherical.
[0129] “Particulate” materials include parallelepiped-shaped particles (rectangular or square surface), discoid-shaped particles (circular surface) and / or ellipsoid-shaped particles (oval surface), characterized by three dimensions: a length, a width and a height.
[0130] According to preferred embodiments, the amorphous particulate material(s) is / are chosen from:
[0131] - starch powders, in particular aluminum starch octenylsuccinate, such as the product sold by Akzo Nobel under the name Dry Flo Plus®;
[0132] - talc / TiO2 / alumina / silica composite powders, for example products sold under the name Coverleaf AR-80® by the company Catalyst & Chemicals;
[0133] - silica / TiO2 composites, such as those sold by Sunjin Chemical under the name Sunsil Tin 50;
[0134] - clays, in particular talcs;
[0135] - non-spherical boron nitride;
[0136] - perlite; and
[0137] - their mixtures.
[0138] With regard in particular to substantially spherical particles, suitable examples of substantially spherical particles include certain silica aerogels. Silica aerogels are porous materials obtained by replacing (by drying) the liquid component of a silica gel with air. They are usually synthesized via a sol-gel process in a liquid medium and then dried, typically by extraction from a supercritical fluid, most commonly supercritical CO2. This type of drying avoids shrinkage of the pores and the material. The sol-gel process and the various drying processes are described in detail in Brinker, CJ, and Scherer, GW, Sol-Gel Science: New York: Academie Press, 1990. Silica aerogels, in general, were disclosed in US Patent No. 9,320,689, by reference. Preferably, suitable silica aerogels have an average particle size of less than about 20 microns.
[0139] Preferably, suitable silica aerogels include hydrophobic silica aerogels. "Hydrophobic silica" means silica whose surface is treated with a hydrophobic material such as silylating agents, for example, halogenated silanes, such as alkylchlorosilanes, siloxanes, particularly dimethylsiloxanes, such as hexamethyldisiloxane, or silazanes, so as to functionalize the OH groups with Si-Rn silyl groups, for example, trimethylsilyl groups. Surface-modified hydrophobic silica aerogel particles with trimethylsilyl groups (silica trimethylsilyl) are preferred. The preparation of hydrophobic silica aerogel particles that have been surface-modified by silylation ("silica silylate") can be found, for example, in US patent 7,470,725.Suitable examples of substantially spherical silica aerogels with an average particle size of less than about 20 microns include AIRLICA TL-10 from Tokuyama Corporation or CAB-O-SIL TS-530 from Cabot Corporation.
[0140] Other suitable examples of substantially spherical particulate materials include, but are not limited to, silicas, glass, and polymers. Preferably, such substantially spherical particulate materials have an average particle size of less than about 20 microns. Specific examples of such particulate materials might be, for example, other spherical silicas such as the BA4 silica balloon available from JGC Catalysts and Chemicals, which has an oil absorption of 40 ml / 100 grams of powder and an average particle size of about 4 µm. Other microspheres (beads) made of glass or polymer are also suitable particulate materials.
[0141] The examples discussed above with regard to a particular substantially spherical material can also provide a suitable material for at least one amorphous particulate material. For example, at least one amorphous particulate material may be silica silylate. Therefore, in preferred embodiments, at least one substantially spherical particulate material is silica silylate and at least one amorphous particulate material is also silica silylate.
[0142] Preferably, at least 50% by weight of the particulate material in the particulate portion is substantially spherical, preferably at least 60% by weight, and preferably at least 70% by weight, preferably at least 75% by weight, and preferably at least 80% by weight, all weights being based on the weight of the total particulate portion. Therefore, the particulate portion preferably comprises a majority fraction of substantially spherical particles, preferably having an average particle size of less than about 20 microns.
[0143] Preferably, at least one substantially spherical particulate material and at least one amorphous particulate material are present in the compositions of this disclosure in a combined amount of about 0.05% to about 10% by weight, preferably 0.1% to 5% by weight, preferably 0.25% to 4% by weight, and preferably 0.5% to 3% by weight relative to the total weight of the composition, including all intermediate ranges and sub-ranges, such as, for example, 1% to 6%, 2% to 7.5% and 3% to 8%. Additional sunscreen agents
[0144] According to preferred embodiments of this disclosure, compositions optionally further comprising at least one additional UV filter (in addition to at least one physical ultraviolet (UV) attenuating material) selected from the group consisting of organic UV filters are provided. However, as noted above, preferred embodiments of this disclosure include compositions of this disclosure containing a UV-absorbing system containing little or no UV filter as defined above.
[0145] The additional organic UV filter(s) may be hydrophilic or lipophilic. “Hydrophilic organic UV filter” means a water-soluble organic UV filter or a water-dispersible organic UV filter (in colloidal form). “Lipophilic organic UV filter” means a UV filter that is dissolved or dispersed in colloidal form in a liquid oil phase.
[0146] Suitable organic UV filters may be selected from the following non-exhaustive list of compounds: cinnamic compounds; anthranilate compounds; para-aminobenzoic acid compounds; salicylic compounds; dibenzoylmethane compounds; camphor compounds; benzophenone compounds; [3,[3-diphenylacrylate] compounds; triazine compounds such as bis-ethylhexyloxyphenol methoxyphenyl triazine; benzotriazole compounds; benzalmalonate compounds, including those cited in US patent 5624663; benzimidazole derivatives; imidazoline compounds; bis-benzoazolyl compounds as described in patents EP669323 and US 2,463,264; methylene bis(hydroxyphenylbenzotriazole) compounds as described in applications US 5,237,071, US 5,166,355, GB2303549, DE19726184 and EP893119; benzoxazole compounds as described in patent applications EP0832642, EP1027883, EP1300137 and DE10162844; polymer filters and silicone filters such as those described in particular in application WO 93 / 04665; Alkylstyrene-derived dimers such as those described in patent application DE19855649; 4,4-diarylbutadiene compounds such as those described in applications EP0967200, DE19746654, DE19755649, EP-A-1008586, EPI 133980 and EP133981, and mixtures thereof.Preferably, lipophilic organic UV filters are chosen from salicylic compounds, dibenzoylmethane compounds, benzylidene camphor compounds; benzophenone compounds; triazine compounds; benzotriazole compounds; as well as other categories of compounds identified here; and mixtures thereof.
[0147] Specific reference may be made to suitable salicylate compounds including Homosalate (homomentyl salicylate), for example marketed under the brand name "Eusolex HMS" by Rona / EM Industries; and ethylhexyl salicylate, for example marketed under the brand name "Neo Heliopan OS" by Symrise; and glycol salicylate. Other examples of salicylate compounds include phenyl salicylate; dipropylene glycol salicylate, for example marketed under the brand name "Dipsal" by Scher; and TEA salicylate, for example marketed under the brand name "Neo Heliopan TS" by Symrise.
[0148] Examples of suitable [3,[3-diphenylacrylate compounds include Octocrylene, for example marketed under the brand name "Uvinul N539" by BASF; and Etocrylene, for example marketed under the brand name "Uvinul N35" by BASF.
[0149] Suitable anthranilic compounds may include menthyl anthranilates, for example marketed under the brand name "Neo Heliopan MA" by Symrise.
[0150] Examples of dibenzoylmethane compounds include butyl methoxydibenzoylmethane, for example marketed under the brand name "Parsol 1789" by DSM; and isopropyl dibenzoylmethane.
[0151] Suitable cinnamyl compounds include ethylhexyl methoxycinnamate, marketed, for example, under the brand name "Parsol MCX" by DSM; isopropyl methoxycinnamate; isopropoxyl methoxycinnamate; isoamyl methoxycinnamate, marketed, for example, under the brand name "Neo Heliopan E 1000" by Symrise; cinoxate (2-ethoxyethyl-4-methoxycinnamate); the DEA methoxycinnamate; diisopropyl methylcinnamate; and glyceryl dimethoxycinnamate ethylhexanoate.
[0152] Examples of camphor compounds include benzylidenecamphor derivatives: 3-benzylidene camphor, for example marketed under the brand name "Mexoryl SD" by Chimex; 4-methylbenzylidene camphor, for example marketed under the brand name "Eusolex 6300" by Merck; benzylidene camphor sulfonic acid, for example marketed under the brand name "Mexoryl SL" by Noveal; benzalkonium camphor methosulfate, for example marketed under the brand name "Mexoryl SO" by Noveal; terephthalylidene dicamphre sulfonic acid, for example marketed under the brand name "Mexoryl SX" by Noveal; and polyacrylamidomethyl benzylidene camphor, for example marketed under the brand name "Mexoryl SW" by Noveal.
[0153] Suitable benzophenone compounds include benzophenone-1 (2,4-dihydroxybenzophenone), such as that marketed under the brand name "Uvinul 400" by BASF; benzophenone-2 (tetrahydroxybenzophenone), such as that marketed under the brand name "Uvinul D50" by BASF; benzophenone-3 (2-hydroxy-4-methoxybenzophenone) or oxybenzone, such as that marketed under the brand name "Uvinul M40" by BASF; benzophenone-4 (hydroxymethoxybenzophonene sulfonic acid), such as that marketed under the brand name "Uvinul MS40" by BASF; benzophenone-5 (sodium hydroxymethoxybenzophenone sulfonate); benzophenone-6 (dihydroxy dimethoxybenzophenone), such as that marketed under the brand name "Helisorb 11" by Norquay; benzophenone-8, such as that marketed under the brand name "Spectra-Sorb UV-24" by American Cyanamid;benzophenone-9 (Disodium dihydroxy dimethoxy benzophenonedisulfonate), such as that marketed under the brand name "Uvinul DS-49" by BASF, benzophenone-12 and n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate (such as that marketed under the brand name UVINUL A+ by BASF).
[0154] Examples of triazine compounds include 4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT)), diethylhexyl butamido triazone, such as that marketed under the brand name "Uvasorb HEB" by Sigma 3V; 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, bis-ethylhexyloxyphenol methoxyphenyl triazine, such as that marketed under the brand name "TINOSORB S" by BASF and ethylhexyl triazone, such as that marketed under the brand name "UVTNUL T150" by BASF.
[0155] Suitable benzotriazole compounds include phenylbenzotriazole derivatives: 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylpheno, branched and linear, and those described in USP 5240975.
[0156] Suitable benzalmalonate compounds include dineopentyl 4'-methoxybenzalmalonate and polyorganosiloxane comprising benzalmalonate functional groups, such as polysilicone-15, such as that marketed under the brand name "Parsol SLX" by Hoffmann-LaRoche.
[0157] Examples of benzimidazole compounds include, in particular, phenylbenzimidazole derivatives such as phenylbenzimidazole sulfonic acid, such as that marketed in particular under the brand name "Eusolex 232" by Merck, and phenyl dibenzimidazole tetrasulfonate disodium, such as that marketed under the brand name "Neo Heliopan AP" by Symrise.
[0158] Suitable imidazoline compounds include ethylhexyl dimethoxybenzylidene propionate dioxoimidazoline.
[0159] Examples of bis-benzoazolyl compounds include the compounds described in EP-669 323 and US patent no. 2 463 264.
[0160] Suitable para-aminobenzoic acid compounds include PABA (p-aminobenzoic acid), ethyl PABA, ethyl dihydroxypropyl PABA, pentyl dimethyl PABA, ethylhexyl dimethyl PABA, such as that marketed under the brand name "Escalol 507" by ISP, glyceryl PABA, and PEG-25 PABA, such as that marketed under the brand name "Uvinul P25" by BASF.
[0161] Suitable methylene bis-(hydroxyphenylbenzotriazole) compounds include 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-methylphenol] such as that marketed under the brand name "Mixxim BB / 200" by Fairmount Chemical, 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol] such as that marketed in micronized aqueous dispersion form under the brand name "Tinosorb M" by BASF or under the brand name "Mixxim BB / 100" by Fairmount Chemical, and derivatives as described in US patents Nos. 5,237,071 and 5,166,355, GB-2,303,549, DE-197,26184 and EP-893,119, and drometrizole trisiloxane, such as that marketed under the brand name "Silatrizole" by Rhodia Chimie or - "Mexoryl XL" by L'Oréal.
[0162] Examples of benzoxazole compounds include 2,4-bis [5-1 (dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-l,3,5-triazine, such as that marketed under the brand name Uvasorb K2A by Sigma 3V.
[0163] Suitable examples of protective polymers and protective silicones include the silicones described in WO 93 / 04665.
[0164] Suitable α-alkylstyrene derived dimers include the dimers described in DE-19855649.
[0165] Examples of 4,4-diarylbutadiene compounds include l,l-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene.
[0166] If present, at least one additional organic UV filter is preferably present in the compositions of this disclosure in an amount of at least about 1% by weight, preferably at least about 5% by weight, preferably at least about 10% by weight, preferably at least about 12.5% by weight, and preferably at least about 15% by weight, the upper end of the range of the additional UV filter present preferably being about 40% by weight (e.g., about 1 to 40%, about 10 to 40%, about 12.5 to 40%, etc.), preferably about 30% by weight (e.g., about 5 to 30%, about 10 to 30%, about 15 to 30%, etc.), preferably about 25% by weight (e.g., about 5 to 25%, about 10 to 25%, about 15 to 25%, etc.). etc.), and preferably about 20% by weight (e.g. about 1 to 20%, about 5 to 20%, about 10 to 20%, etc.), all weights being based on the total weight of the composition.
[0167] According to preferred embodiments, the compositions of this disclosure comprise 10% or less by weight relative to the total weight of the composition of such optional additional UV filters, preferably less than 7.5% by weight relative to the total weight of the composition, preferably less than 5% by weight relative to the total weight of the composition, preferably less than 3% by weight relative to the total weight of the composition, and preferably less than 1% by weight relative to the total weight of the composition.
[0168] According to preferred embodiments, the compositions of this disclosure further comprise at least one additional organic UV filter selected from the group consisting of 4-bis-{ [4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine), avobenzone (butyl methoxydibenzoylmethane), octisalate (ethylhexyl salicylate), ensulizole (phenylbenzimidazole sulfonic acid), homosalate, octocrylene and mixtures thereof.In such embodiments, the UV-absorbing system may "consist of" or "consist essentially of" (1) at least one physical ultraviolet (UV) attenuating material and (2) at least one organic UV filter selected from the group consisting of 4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine), avobenzone (butyl methoxydibenzoylmethane), octisalate (ethylhexyl salicylate), ensulizole (phenylbenzimidazole sulfonic acid), homosalate, octocrylene and mixtures thereof.
[0169] However, according to other preferred embodiments, the compositions of this disclosure are "free", "substantially free" or "devoid" as defined above of one or more additional organic UV filters selected from the group consisting of 4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine), avobenzone (butyl methoxydibenzoylmethane), octisalate (ethylhexyl salicylate), ensulizole (phenylbenzimidazole sulfonic acid), homosalate, and octocrylene, preferably two or more, preferably three or more, preferably four or more, or preferably all five of these sunscreens.
[0170] According to preferred embodiments, the compositions of this disclosure are "free", "substantially free" or "devoid", as defined above, of one or more additional organic UV filters selected from the group consisting of OXYBENZONE (benzophenone-3), OCTINOXATE (ethylhexyl methoxycinnamate), ETHYLHEXYL TRIAZONE, DROMETRIZOLE TRISILOXANE, METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYL PHENOL, DIETHYLAMINO HYDROXYBENZOYL HEXYL BENZOATE, DIETHYLHEXYL BUTAMIDO TRIAZONE, ISOAMYL P-METHOXYCINNAMATE, POLYSILICONE-15, 4-METHYLBENZYLIDENE CAMPHOR, PHENYL DIBENZIMIDAZOLE DISODIUM TETRASULFONATE, METHOXYPROPYLAMINO CYCLOHEXENYLIDENE METHOXYETHYLCYANOACETATE, 4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine), preferably two or more, preferably three or more, preferably four or more, etc.and preferably "free", "significantly free" or "devoid" of all these sunscreen agents.
[0171] According to preferred embodiments, the compositions of this disclosure are "free", "substantially free" or "devoid" of OXYBENZONE (benzophenone-3) and / or OCTINOXATE (ethylhexyl methoxycinnamate) and / or 4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine).
[0172] According to preferred embodiments, the UV-absorbing system of the compositions of this disclosure may "consist of" or "consist essentially of" at least one ultraviolet (UV) attenuating physical material.
[0173] According to preferred embodiments, this disclosure intends to omit one or more of the specific UV filters mentioned above from the UV-absorbing system of the compositions in this disclosure. For example, octocrylene and / or octinoxate may be omitted from the compositions. A similar omission of one or more of the specific UV filters mentioned is therefore envisaged. Oil
[0174] According to this disclosure, emulsion compositions comprising at least one oil are proposed. "Oil" means a substance that is hydrophobic and lipophilic, and is a liquid at approximately room temperature (20 to 25 °C) and approximately atmospheric pressure (760 mm Hg).
[0175] Suitable oils include volatile and / or non-volatile oils. These oils may be any acceptable oil, including, but not limited to, silicone oils and / or hydrocarbon oils.
[0176] According to certain embodiments, the compositions of this disclosure preferably comprise one or more volatile silicone oils. Examples of such volatile silicone oils include linear or cyclic silicone oils having from 2 to 7 silicon atoms, these silicones optionally being substituted with alkyl or alkoxy groups of 1 to 10 carbon atoms. Specific oils that may be used in the disclosure include octamethyltetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, and mixtures thereof. Other volatile oils that may be used include KF 96A, a commercial product from Shin Etsu with a viscosity of 6 cSt and a flash point of 94 °C. Preferably, volatile silicone oils have a flash point of at least 40°C.
[0177] Non-limiting examples of volatile silicone oils are listed in Table 1 below.
[0178] [Tables] Compound Flash Point (°C) Viscosity (cSt) Octyltrimethicone 93 1.2 Hexyltrimethicone 79 1.2 Decamethylcyclopentasiloxane 72 4.2 (cyclopentasiloxane or D5) Octamethylcyclotetrasiloxane (cyclotetramethylsiloxane or D4) 55 2.5 Dodecamethylcyclohexasiloxane (D6) 93 7 Decamethyltetrasiloxane (L4) 63 1.7 KF-96 A from Shin Etsu 94 6 PDMS (polydimethylsiloxane) DC 200 (1.5 cSt) from Dow Corning 56 1.5 PDMS DC 200 (2 cSt) from Dow Corning 87 2
[0179] In addition, a linear volatile silicone oil may be used in this disclosure. Suitable linear volatile silicone oils include those described in US Patent No. 6,338,839 and in WO03 / 042221. In one embodiment, the linear volatile silicone oil is decamethyltetrasiloxane. In another embodiment, decamethyltetrasiloxane is further combined with another solvent that is more volatile than decamethyltetrasiloxane.
[0180] According to certain embodiments of this disclosure, the composition preferably comprises one or more non-silicone volatile oils and may be selected from volatile hydrocarbon oils, volatile esters, and volatile ethers. Examples of such volatile non-silicone oils include, but are not limited to, volatile hydrocarbon oils having 8 to 16 carbon atoms and mixtures thereof, and in particular, C8-Ci6 branched alkanes such as C8-Ci6 isoalkanes (also known as isoparaffins), isohexadecane, isododecane, isodecane, and, for example, oils sold under the trade names Isopar or Permethyl. Preferably, the non-silicone volatile oils have a flash point of at least 40 °C.
[0181] Non-limiting examples of non-silicone volatile oils are given in Table 2 below.
[0182] [Tables2] Compound Flash Point (°C) Isododecane 43 Propylene glycol n-butyl ether 60 Ethyl 3-Ethoxypropionate 58 Propylene glycol acetate methyl ether 46 Isopar L (Cn-Ci3 isoparaffin) 62 Isopar H (Cn-Ci2 isoparaffin) 56
[0183] According to certain embodiments of this disclosure, the composition includes at least one non-volatile oil. Examples of non-volatile oils that may be used in this disclosure include, but are not limited to, polar oils such as, for example:
[0184] - esters and ethers, in particular fatty acids, such as oils of formula R1COOR2, in which RI represents the remainder of a fatty acid having from 8 to 29 carbon atoms, and R2 represents a hydrocarbon chain, branched or unbranched, containing from 2 to 30 carbon atoms, such as, for example, Purcellin oil, ethyl oleate, ethyl stearate, isononyl isononanoate, isopropyl myristate, ethyl-2-hexyl palmitate, octyl-2-dodecyl stearate, octyl-2-dodecyl erucate, isostearyl isostearate; hydroxylated esters such as isostearyl lactate, octylhydroxy stearate, octyldodecyl hydroxystearate, diisostearyl malate, triisocetyl citrate, heptanoates, octanoates, fatty alcohol decanoates; polyol esters, such as propylene glycol dioctanoate, neopentyl glycol diheptanoate and diethylene glycol diisononanoate;glycerin triesters such as glycerol and C12-C22 fatty acid triesters, preferably C16-C18 fatty acid triesters, preferably Cl8 fatty acid triesters, such as glycerin and isostearic acid triester (triisostearine), glycerin and stearic acid triester (tristearine), glycerin and oleic acid triester (triolein), glyceryl tripalmitate, glyceryl trilaurate, etc.; and pentaerythritol esters such as pentaerythrityl tetraisostearate or dipentaerythrityl pentaisononanoate;
[0185] - ethers containing 10 to 40 carbon atoms;
[0186] - liquid C8 to C26 fatty alcohols, for example oleyl alcohol, alcohol cetyl alcohol, stearyl alcohol and cetearyl alcohol;
[0187] - hydrocarbon oils of animal origin, such as perhydrosqualene;
[0188] - vegetable hydrocarbon oils, such as liquid triglycerides fatty acids with 4 to 10 carbon atoms such as heptanoic or octanoic acid triglycerides, for example, sunflower, corn, soybean, cucurbit, grapeseed, sesame, hazelnut, apricot, macadamia oil, ara, sunflower, castor oil, avocado, caprylic / capric acid triglycerides, such as those sold by Stéarineries Dubois or those sold under the names Miglyol 810, 812, and 818 by Dynamit Nobel, coco-caprylate / caprate (esterified coconut oil), jojoba oil, shea butter oil; and
[0189] - their mixtures.
[0190] In addition, examples of non-volatile oils that may be used in this disclosure include, but are not limited to, non-polar oils such as branched and unbranched hydrocarbons, in particular Vaseline (petrolatum), paraffin oil, squalane, squalene, hydrogenated polyisobutene, hydrogenated polydecene, polybutene, mineral oil, pentahydrosqualene and mixtures thereof.
[0191] According to certain embodiments of this disclosure, the compositions of this disclosure may include at least one non-volatile silicone oil. Appropriate examples of such silicone oils include, but are not limited to, non-volatile silicone fluids such as, for example, polyalkyl (aryl) siloxanes. Appropriate polyalkyl siloxanes include, but are not limited to, polydimethyl siloxanes, which are designated CTFA dimethicone, polydiethyl siloxane, phenyl trimethicone, trimethyl pentaphenyl trisiloxane, phenyldimethicone, phenyltrimethylsiloxydiphenylsiloxane, diphenyldimethicone, and diphenylmethyldiphenyltrisiloxane, and the siloxanes disclosed in U.S. Patent Application Publication No. 2004 / 0126350.Specific examples of suitable high viscosity silicone oils include, but are not limited to, PCR 15 M 30 (500 cSt) or Wacker Belsil PDM 1000 (1000 cSt) and Dow Corning 200 (350 cSt) (values in parentheses represent viscosities at 25 °C).
[0192] Particularly preferred oils include, but are not limited to, one or more of the following: diisopropyl sebacate, C12-15 alkyl benzoate, phenethyl benzoate, isopropyl lauroyl sarcosinate, diisopropyl adipate, dibutyl adipate, dicaprylyl carbonate, dicaprylate / dicaprate, coco glycerides, caprylic / capric triglyceride, isopropyl myristate, isopropyl palmitate, coco caprylate / caprate, ethylhexyl palmitate, isononyl isononanoate, octyl dodecanol, isohexadecane, isododecane, dicaprylyl ether, C15-19 alkane, and mixtures thereof.
[0193] According to preferred embodiments, at least one oil is present in the compositions of this disclosure in an amount ranging from about 1% to about 50% by weight, more preferably from about 5% to about 40% by weight, and preferably from about 10% to about 35% by weight, based on the total weight of the composition, including all ranges and sub-ranges within those ranges, such as 15% to 40%, 20% to 45%, etc. Aqueous Phase
[0194] According to this disclosure, emulsion compositions comprising an aqueous phase including water are proposed. Water is preferably present in the emulsion compositions of this disclosure in an amount of about 10% to about 80% by weight, preferably about 20% to about 70% by weight, preferably about 35% to about 65% by weight, including all intermediate ranges and sub-ranges, all weights being based on the total weight of the composition.
[0195] Preferably, the emulsion compositions of the present invention are in the form of an emulsion containing an external aqueous phase such as an oil-in-water (O / W) emulsion or a water-in-oil-in-water (W / O / W) emulsion, or an emulsion containing an external oily phase such as a water-in-oil (W / O) emulsion or an oil-in-water-in-oil (W / O / O) emulsion. Preferably, the oily phase may contain silicone oils (for example, Si / O or W / Si emulsion) or hydrocarbon oils.
[0196] The aqueous phase may further comprise at least one water-soluble organic solvent that is liquid at room temperature and atmospheric pressure. For example, such at least one water-soluble organic solvent may include:
[0197] C1-C5 monoalcohols having a C1-C5 alkane chain and a single hydroxyl (OH) function. Suitable C1-C5 monoalcohols include methanol, ethanol, propanol, isopropanol, butanol, and mixtures thereof;
[0198] polyols (compounds having 2 or more hydroxyl groups) having, for example, from 2 to 20 carbon atoms, preferably from 2 to 6 carbon atoms, such as, for example, glycerol, diglycerol, propylene glycol, isoprene glycol, dipropylene glycol, butylene glycol, hexylene glycol, 1,3-propanediol, pentylene glycol, simple sugars and water-soluble polyalkylene glycols;
[0199] and their mixtures.
[0200] According to preferred embodiments, at least one water-soluble organic solvent is selected from the group consisting of ethanol, dipropylene glycol, butylene glycol, propanediol and propylene glycol, and mixtures thereof.
[0201] Where applicable, the water-soluble organic solvent(s) is / are preferably present in the compositions of this disclosure in an amount ranging from about 0.5 to about 40% by weight, preferably from about 3 to about 30% by weight, and preferably from about 5% to about 20% by weight relative to the total weight of the composition, including all intermediate ranges and sub-ranges such as, for example, 2% to 15%, 2% to 25%, 7.5% to 30%, etc. Surfactant component (system)
[0202] According to preferred embodiments of this disclosure, emulsion compositions optionally including at least one surfactant component are proposed. Generally, acceptable surfactants (emulsifiers) may be selected from ionic emulsifiers, non-ionic emulsifiers, and mixtures thereof.
[0203] “HLB” refers to the “hydrophilic-lipophilic equilibrium” associated with emulsifiers. Specifically, the "HLB" value refers to the ratio of hydrophilic to lipophilic groups in emulsifiers, and also relates to the solubility of the emulsifiers. "Low HLB emulsifiers (surfactants)" have an HLB value below 8. These surfactants are more soluble in oils (lipophilic material) and are more suitable for use in water-in-oil (W / O) emulsions. "High HLB emulsifiers" have an HLB value above 8 and are more soluble in water (hydrophilic material) and are more suitable for oil-in-water (O / W) emulsions.
[0204] By way of example, the following emulsifiers have been reported as having the following HLB values:
[0205] - Propylene glycol isostearate HLB = 2.5;
[0206] - Glyceryl stearate HLB = 3.8;
[0207] - Sorbitan isostearate HLB = 4.7;
[0208] - Oleth-2 HLB = 4.9;
[0209] - Steareth-2 HLB = 4.9;
[0210] - Glyceryl laurate HLB = 5.2;
[0211] - Ceteth-2 HLB = 5.3;
[0212] - Methyl glucose sesquistearate HLB = 6.6;
[0213] - Steareth-20 HLB = 15.3;
[0214] - Ceteth-30 HLB = 16.5;
[0215] - C12-13 pareth-23 HLB = 16.7;
[0216] - Polysorbate 20 HLB = 16.7;
[0217] - Lauréth-23 HLB = 16.9;
[0218] - PEG-100 stearate HLB = 18.8; and
[0219] - Sodium lauryl sulfate HLB = 40.
[0220] According to preferred embodiments, the compositions of this disclosure include a surfactant component comprising at least one surfactant that has an HLB value greater than 8.
[0221] According to preferred embodiments, one or more of the surfactants is / are a fatty alcohol, a fatty acid, or an ester thereof, optionally alkoxylated (ethoxylated, propoxylated, etc.), glyceryl, and / or pegylated. Fatty acids correspond to the formula R-COOH and fatty alcohols correspond to the formula R-OH, in which R denotes a saturated or unsaturated hydrocarbon radical having preferably from 7 to 45 carbon atoms, preferably from 9 to 35 carbon atoms, preferably from 15 to 35 carbon atoms, preferably from 15 to 21 carbon atoms, and preferably from 16 to 18 carbon atoms. Examples include lauric acid / alcohol, stearic acid / alcohol, oleic acid / alcohol, behenyl acid / alcohol, cetyl acid / alcohol, and mixtures thereof (including cetearyl compounds).
[0222] Suitable surfactants / emulsifiers include ethoxylated fatty acids or alcohols, ethoxylated fatty acids, partial glycerides of ethoxylated fatty acids or alcohols, glycerolized fatty acids or alcohols, and mixtures thereof.
[0223] Suitable alkoxylated fatty alcohols include, for example, the addition products of ethylene oxide with lauryl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Laureth-2 to Laureth-250); the addition products of ethylene oxide with behenyl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Beheneth-2 to Beheneth-250); the addition products of ethylene oxide with cetearyl alcohol (mixture of cetyl alcohol and stearyl alcohol), in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Ceteareth-2 to Ceteareth-250 such as, for example, Ceteareth-33); the addition products of ethylene oxide with cetyl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the names CTFA Ceteth-2 to Ceteth-250 such as, for example, Ceteth-30);the addition products of ethylene oxide with stearyl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Steareth-2 to Steareth-250 such as, for example, Steareth-20); the addition products of ethylene oxide with isostearyl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Isosteareth-2 to Isosteareth-250); and their mixtures, in which the amount of alkoxylation preferably ranges from 2 to 250, and preferably from 5 to 200, including all intermediate ranges and sub-ranges including, for example, 10 to 100, 50 to 150, etc.;
[0224] Suitable alkoxylated fatty acids include, for example, the addition products of ethylene oxide with lauric acid, palmitic acid, stearic acid or behenic acid, and mixtures thereof, in particular those containing from 2 to 250 oxyethylenated groups, such as, for example, PEG-2 to PEG-50 laurates (having CTFA names: PEG-2 laurate to PEG-50 laurate); PEG-2 to PEG-50 palmitates (having CTFA names: PEG-2 palmitate to PEG-50 palmitate); PEG-2 to PEG-250 stearates (CTFA names: PEG-2 stearate to PEG-250 stearate, such as PEG-100 stearate and PEG-200 stearate); PEG-2 to PEG-50 palmitostearates; PEG-2 to PEG-50 behenates (CTFA names: PEG-2 behenate to PEG-50 behenate); and mixtures thereof, wherein the amount of alkoxylation ranges from preferably from 2 to 250, and preferably from 5 to 200, including all intermediate ranges and sub-ranges including, for example, 10 to 100, 50 to 150, etc.
[0225] Suitable glyceryl fatty acids include, for example, glyceryl stearate, glyceryl oleate and glyceryl caprylate.
[0226] According to preferred embodiments, the surfactant component may further contain or comprise at least one alkyl phosphate surfactant as disclosed, for example, in US patent 9,687,426. Preferably, where appropriate, the alkyl phosphate surfactant is selected from C14-C24 alkyl phosphates, preferably C16-C18 alkyl phosphates, and mixtures thereof. More preferably, they are selected from cetyl phosphate, stearyl phosphate, and cetearyl phosphate. For example, cetyl phosphate is commercially available under the names Amphisol K (Roche), Amphisol A (Roche), Arlatone MAP (Uniqema), and Crodafos MCA (Croda). It should be understood that "alkyl phosphate" includes salts of such compounds as potassium cetyl phosphate.
[0227] Preferred surfactants include at least one surfactant selected from the group of palmitic acid, potassium cetyl phosphate, ceteareth-33, steareth-2, steareth-20, glyceryl stearate and stearic acid.
[0228] Preferably, if present, the surfactant(s) (surfactant component) is / are present in the compositions of this disclosure in an amount of about 1% to about 20%, preferably about 5% to about 17.5%, preferably about 5% to about 15%, and preferably about 6% to about 12%, by weight relative to the total weight of the composition, including all intermediate ranges and sub-ranges. Thickening agent component (system)
[0229] According to preferred embodiments of this disclosure, compositions optionally comprising a thickening agent component including at least one thickening agent are proposed. Suitable thickening agents include any thickening agent, such as, for example, gums and (co)polymers of acrylic acid, such as high molecular weight homo- or copolymers comprising acrylic acid, optionally crosslinked with a polyalkenyl polyether, including certain polymers identified as "carbomers" as well as amphiphilic polymers. Preferably, the thickening agent is selected from the group consisting of at least one partially neutralized amphiphilic polymer, at least one hydrophobically modified amphiphilic copolymer, at least one anionic polysaccharide, at least one homopolysaccharide, preferably nonionic, and mixtures thereof. Amphiphilic polymers
[0230] According to preferred embodiments, the thickening system preferably comprises at least one thickening agent which is at least one amphiphilic polymer, comprising at least one ethylenically unsaturated monomer, preferably containing a sulfonic group, in a partially or totally neutralized form.
[0231] According to preferred embodiments, the thickening system preferably comprises at least one thickening agent that is at least one hydrophobically modified amphiphilic copolymer, preferably containing a sulfonic group, in free, partially neutralized, or totally neutralized form. The hydrophobic portion present in these polymers preferably contains from 6 to 50 carbon atoms, preferably from 6 to 22 carbon atoms, preferably from 6 to 18 carbon atoms, and preferably from 12 to 18 carbon atoms, including all intermediate ranges and sub-ranges.
[0232] The amphiphilic polymers mentioned above may have a molar mass ranging from 50,000 g / mol to 10,000,000 g / mol, preferably from 80,000 g / mol to 8,000,000 g / mol, and preferably from 100,000 g / mol to 7,000,000 g / mol.
[0233] The amphiphilic polymers mentioned above may be based on at least one ethylenically unsaturated hydrophilic monomer A and at least one hydrophobic monomer B. Preferably, monomer A includes a strong acid function, in particular a sulfonic acid or phosphonic acid function.The hydrophobic monomer B comprises at least one hydrophobic radical, selected from: saturated or unsaturated linear C6-Ci8 alkyl radicals (e.g., n-hexyl, n-octyl, n-decyl, n-hexadecyl, n-dodecyl, or oleyl); branched alkyl radicals (e.g., isostearic) or cyclic alkyl radicals (e.g., cyclododecane or adamantane); C6-Ci8 fluoro or alkylfluoro radicals (e.g., the group with the formula —(CH2)2—(CF2)9—CF3); one or more cholesterol-derived cholesteryl radicals (e.g., cholesteryl hexanoate); aromatic polycyclic groups, e.g., naphthalene or pyrene; and silicone, alkylsilicone, or alkylfluorosilicone radicals. Linear and branched alkyl radicals are preferred among these.
[0234] The amphiphilic polymers mentioned above may be soluble in water or dispersible in water in neutralized form.
[0235] The amphiphilic polymers mentioned above can be crosslinked. The crosslinking agents can be chosen, for example, from among the unsaturated polyolefin compounds commonly used for crosslinking polymers obtained by free-radical polymerization. According to a preferred embodiment of the invention, the crosslinking agent is chosen from methylenebisacrylamide, allyl methacrylate, or trimethylolpropane triacrylate (TMPTA). The degree of crosslinking preferably ranges from 0.01 mol% to 10 mol%, and preferably from 0.2 mol% to 2% by mol, relative to the polymer, including all intermediate ranges and sub-ranges.
[0236] The amphiphilic polymers mentioned above can be homopolymers or copolymers.
[0237] The amphiphilic polymers mentioned above can be partially or totally neutralized with a mineral base (for example, sodium hydroxide, potassium hydroxide or liquid ammonia) or an organic base such as monoethanolamine, diethanolamine, triethanolamine, aminomethylpropanediol, N-methylglucamine or basic amino acids, for example arginine and lysine, and mixtures thereof.
[0238] The amphiphilic polymers referred to above may be water-soluble or water-dispersible homopolymers such as, for example, optionally crosslinked polymers of sodium 2-acrylamido-2-methylpropane sulfonate such as that used in the commercial product SIMULGEL 800 (CTFA name: Sodium Polyacryloyldimethyl Taurate), crosslinked polymers of ammonium 2-acrylamido-2-methylpropane sulfonate (INCI name: AMMONIUM POLYACRYLDIMEHYLTAURAMIDE) such as the product sold under the trade name HOSTACERIN AMPS@ by Clariant.
[0239] The amphiphilic polymers referred to above may be selected from crosslinked or noncrosslinked amphiphilic polymers of 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and at least one ethylenically unsaturated monomer comprising at least one hydrophobic portion containing from 6 to 30 carbon atoms, preferably from 6 to 22 carbon atoms, preferably from 6 to 18 carbon atoms and preferably from 12 to 18 carbon atoms, including all intermediate ranges and sub-ranges.
[0240] Suitable examples of hydrophobically modified amphiphilic polymers include, but are not limited to, ammonium acryloyldimethyltaurate / VP copolymer (Clarant's Aristoflex AVC), ammonium acryloyldimethyltaurate / beheneth-25 methacrylate crosslinked polymer (Clarant's Aristoflex HMB) (ethoxylated crosslinked AMPS / behenyl methacrylate), ammonium acryloyldimethyltaurate / steareth-25 methacrylate crosslinked polymer (Aristoflex HMS) (ethoxylated AMPS / stearyl methacrylate copolymer crosslinked with trimethylol triacrylate), Aristoflex SNC (ethoxylated crosslinked AMPS / C16-C18), Aristoflex LNC (non-crosslinked AMPS / C12-C14), the copolymer acrylamide / sodium acryloyldimethyl taurate / isohexadecane / polysorbate 80) (Simulgel 600), hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer (Sepinov EMT 10) and mixtures thereof. Anionic polysaccharides
[0241] According to preferred embodiments, the thickening system preferably comprises at least one thickening agent that is at least one anionic polysaccharide thickening agent. Suitable anionic polysaccharide thickening agents include anionic polysaccharide gums.
[0242] Appropriate examples of anionic polysaccharide gums include, but are not limited to, polysaccharide gums produced by microorganisms; polysaccharide gums isolated from algae; and polysaccharide gums from higher plants, such as homogeneous polysaccharide gums, modified or unmodified, in particular celluloses, carrageenans, gellans, agars, xanthan gums, and alginates. Generally, compounds of this type that may be used in the compositions of this disclosure can be found in Kirk-Othmer's Encyclopedia of Chemical Technology, Third Edition, 1982, Volume 3, pp. 896–900, and Volume 15, pp. 439–458, and in Polymers in Nature by E.A. MacGregor and C.T. Greenwood, published by John Wiley & Sons, Chapter 6, p. 240-328, 1980, in the publication by Robert L.Davidson entitled Title of Water-Soluble Gums and Resins published by the McGraw Hill Book Company (1980) and in Industrial Gums - Polysaccharides and their Derivatives, edited by Roy L. Whistler, Second Edition, published by Academie Press Inc. Preferred polysaccharide thickening agents include carboxymethylcellulose, carrageenan, xanthan gum and mixtures thereof. Homopolysaccharide
[0243] According to preferred embodiments, the thickening system comprises at least one homopolysaccharide thickening agent, preferably branched and preferably non-ionic. Preferably, at least one homopolysaccharide is a branched homopolysaccharide selected from the group consisting of branched glucans or branched fructans, and may include scleroglucan, amylopectin, glycogen, and mixtures thereof.
[0244] Scleroglucan gums are branched homopolysaccharides of microbial origin produced by a Sclerotium-type fungus, in particular Sclerotium rolfsii, consisting of glucose motifs.
[0245] Suitable scleroglucan gums may or may not be modified. Preferably, the scleroglucan gums used in the compositions of this disclosure are not modified.
[0246] Appropriate examples of commercial scleroglucan gum products include, but are not limited to, products sold under the name ACTIGUM CS, in particular ACTIGUM CS 11, by SANOFI BIO INDUSTRIES and under the name AMIGUM or AMIGEL by ALBAN MULLER INTERNATIONAL. Other scleroglucan gums, such as those treated with 0.5 to 10% of glyoxal, as described in French patent application no. 2 633 940, can also be used.
[0247] Preferably, if present, the thickening agent(s) is / are present in the compositions of the present invention in total combined amounts ranging from about 0.1 to about 20% by weight, preferably from 0.2 to 10% by weight, preferably from 0.25 to 5% and preferably from 0.3 to 1% by weight, all weights being based on the weight of the composition as a whole, including all intermediate ranges and sub-ranges such as, for example, 0.1 to 0.5%, 0.4 to 0.6%, 0.2 to 0.5%, etc. Optional additional ingredients
[0248] The compositions of this disclosure may also optionally include at least one additional additive or auxiliary commonly used in cosmetic compositions and known to a person skilled in the art as being suitable for incorporation in such compositions. Such additives or auxiliaries may be selected from film-forming agents, coloring agents (e.g., dyes and pigments), waxes, preservatives, perfumes, antioxidants, free radical scavengers, spreading agents, dispersing agents, antifoaming agents, neutralizing agents, stabilizing agents, active ingredients selected from essential oils, moisturizing agents, vitamins, actives, proteins, ceramides, plant extracts, fibers and the like, wetting agents and mixtures thereof. However, preferably, the compositions of this disclosure are "free," "substantially free," or "devoid" of such additives.
[0249] A person skilled in the art shall ensure that the optional additional additives are chosen and / or their quantity so that the advantageous properties of the composition as disclosed are not, or are not substantially, compromised by the envisaged addition.
[0250] It goes without saying that the composition of the disclosure must be cosmetically or dermatologically acceptable, that is, it must contain a physiologically acceptable, non-toxic carrier. The composition may be in any pharmaceutical form normally used in the cosmetic and dermatological fields that is suitable for topical administration as mentioned above.
[0251] These auxiliary additives may be present in the composition in a proportion of 0% to 99% (such as 0.01% to 90%) relative to the total weight of the composition and furthermore such as 0.1% to 50% by weight (where appropriate), including all intermediate ranges and sub-ranges.
[0252] In accordance with this disclosure, the compositions in this disclosure may be a standalone product (for use alone), or they may be a product for use in conjunction with another composition, for example, it may be a base layer composition (makeup base), a composition of a color coat or a topcoat composition. It should be understood that when compositions of this disclosure are applied to keratinous materials in the form of any such composition, such application may comprise one or more layers of the product. Thus, for example, the application of at least one color coat composition may comprise one or more color coats; the application of at least one topcoat composition may comprise one or more topcoats; the application of at least one base coat composition may comprise one or more base coats. Preferably, such base coat, color coat, and topcoat compositions contain three or fewer layers of composition, preferably two or fewer layers of composition, and preferably only one layer of composition.
[0253] During the application of the compositions of this disclosure, the base coat (if present) is typically applied directly to the keratinous material, the color coat is typically applied either directly to the keratinous material (if no base coat is present), or to a previously applied base coat, and the top coat (if present) is typically applied to a color coat.
[0254] According to preferred embodiments of this disclosure, methods for treating, protecting, improving the appearance, caring for and / or making up keratinous material by applying compositions of this disclosure to the keratinous material in sufficient quantity to treat the keratinous material, improve its appearance, care for it and / or make it up, are proposed.
[0255] Preferably, the "makeup" of the keratinous material includes the application of a composition comprising at least one coloring agent to the keratinous material in sufficient quantity to provide color and / or an optical effect to the keratinous material.
[0256] Preferably, the "protection" of the keratinous material includes the application of a composition from this disclosure to protect the keratinous material from damage resulting from exposure to UV rays.
[0257] According to the preceding embodiments, the compositions of this disclosure are applied topically to the keratinous material in a sufficient quantity to treat, improve the appearance of, care for, and / or conceal the keratinous material. The compositions can be applied to the desired area as needed, preferably once or twice a day, more preferably once a day, and then preferably allowed to dry before being subjected to contact such as with clothing or other objects (e.g., clothing or a diaper). finish). Preferably, the composition is allowed to dry for about 1 minute or less, more preferably for about 45 seconds or less.
[0258] According to preferred embodiments of this disclosure, methods for producing emulsion compositions comprising at least one ultraviolet (UV) attenuating physical material by combining at least one ultraviolet (UV) attenuating physical material, at least one substantially spherical particulate material, and at least one amorphous particulate material during the formation of the compositions are provided. Preferably, the methods further comprise the combination of (1) at least one high HLB surfactant, and / or (2) at least one anionic polysaccharide thickening agent, at least one homopolysaccharide, and / or at least one amphiphilic thickening agent, during the formation of the emulsion compositions. Preferably, the compositions are non-greasy and / or non-bleaching (i.e., the compositions do not leave white residue) upon application.Preferably, the compositions offer broad-spectrum protection against UV rays. Preferably, the compositions offer SPF protection of at least 25, preferably at least 30.
[0259] This disclosure also considers pre-packaged kits and / or materials suitable for consumer use containing one or more compositions as described herein, alone or in combination with makeup products such as primers, top coats, makeup removers, etc. The packaging and application device for any subject of this disclosure may be selected and manufactured by persons skilled in the art based on their general knowledge and adapted to the nature of the composition to be packaged. Indeed, the type of device to be used may be particularly related to the consistency of the composition, especially its viscosity; it may also depend on the nature of the constituents present in the composition, for example, the presence of volatile compounds.
[0260] Unless otherwise stated, all numbers expressing quantities of ingredients, reaction conditions, etc., used in the patent memorandum and claims are to be understood as modified in all cases by the term "approximately." Accordingly, unless otherwise stated, the numerical parameters presented in the following patent memorandum and the attached claims are approximations that may vary depending on the desired properties that are sought to be obtained through this disclosure.
[0261] Although the numerical ranges and parameters defining the general scope of disclosure are approximations, the numerical values shown in the specific examples are reported as accurately as possible. However, every numerical value inherently contains some errors resulting necessarily of the standard deviation found in their respective measurements. The following examples are intended to illustrate disclosure without, however, limiting its scope. Percentages are provided on a weighted basis. Example 1
[0262] The following simplex oil dispersion mixtures were prepared and their gloss was measured using the following protocol: Films of the tested compositions were deposited onto the BYK 2A paint test varnish card using a 1 MIL necking bar and an automatic necking machine. The films were dried at room temperature for 5 minutes and analyzed using a glossmeter (BYK: micro-TRLgloss) at an angle of 85°.
[0263] [Tables3] Description Comparative Example 1 Comparative Example 2 Comparative Example 3 Inventive Example 1 Dicaprylyl Carbonate qs qs qsqs Silica Silylate (spherical particle) - 4% - 4% Silica (spherical particle) - 4% - 4% Silica Silylate (amorphous particle) - - 0.5% 0.5% Pearlite (amorphous particle) - - 6% 6% Gloss Meter Measurement 92.3 61.5 27.6 5.3
[0264] These results indicate that, although the addition of spherical and amorphous particles individually results in some reduction of brightness (see comparative examples 2 and 3), the combination of at least one spherical particle and at least one amorphous particle unexpectedly resulted in a dispersion having matte properties, characterized by brightness unit measurements at 85° of less than 10 GU (inventive example 1 versus comparative example 1). Example 2
[0265] The following compositions were prepared and then their brightness was measured using the same protocol described in Example 1.
[0266] [Tables4] Description Exemple c omparatif 4 Exemple c omparatif 5 Exemple i nventif 2 EAU qsqsqsCAPRYLIC / CAPRIC TRIGLYCERIDE 5.00 5.00 5.00 STEARETH-20 0.75 0.75 0.75 C12-15 ALKYL BENZOATE 10.00 10.00 10.00 GLYCERIN 7.00 7.00 7.00 CHLORPHENESIN 0.20 0.20 0.20 HYDROXYSTEARIC POLYACID 0.50 0.50 0.50 ACRYLATE HYDROXYETHYL / SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER 0.30 0.30 0.30 DICAPRYLYL CARBONATE 10.00 10.00 10.00 TRISODIUM ETHYLENEDIAMINE D ISUCCINATE 0.35 0.35 0.35 HYDROXYACETOPHENONE 0.30 0.30 0.30 C12-22 ALKYL ACRYLATE / HYDROXYETHYL ACRYLATE COPOLYMER 0.50 0.50 0.50 CAPRYLIC / CAPRIC TRIGLYCERIDE (and) TITANIUM DIOXIDE (and) POLYHYDROXYSTEARIC ACID (and) ALUMINUM STEARATE (and) ALUMINUM 7.70 7.70 7.70 XANTHAN GUM 0.30 0.30 0.30 CITRIC ACID 0.00 0.00 0.00 ZINC OXIDE (and) TRIETHOXYLACRYLYSILANE 16.50 16.50 16.50 Silica silylate (spherical particle) - 2% 1% Silica (spherical particle) - - 2% Silica silylate (amorphous particle) - - 0.1%. Perlite (amorphous particle) - - 3% Gloss meter measurement 74.5 46.5 14.2
[0267] These results indicate that spherical particles alone exhibited a substantial reduction in gloss in the tested compositions containing zinc oxide and titanium oxide (Comparative Example 5 versus Comparative Example 4). However, the combination of spherical and amorphous particulate matter unexpectedly resulted in a composition with very weak semi-gloss and almost matte properties, characterized by gloss unit measurements at 85° of less than 15 GU (Inventive Example 2 versus Comparative Example 4). Example 3
[0268] The following compositions were prepared and then their brightness was measured using the same protocol described in Example 1.
[0269] [Tables5] Description Comparative Example 6 Comparative Example 7 Inventive Example 3 WATER qsqsqs CAPRYLIC / CAPRIC TRIGLYCERIDE 5.00 5.00 5.00 STEARETH-20 0.25 0.25 0.25 ZEA MAYS (CORN) STARCH 0.50 0.50 0.50 C12-15 ALKYL BENZOATE 10.00 10.00 10.00 GLYCERIN 7.00 7.00 7.00 CHLORPHENESIN 0.20 0.20 0.20 HYDROXYSTEARIC POLYACID 0.50 0.50 0.50 DEXTRIN PALMITATE 0.50 0.50 0.50 BIS-ETHYLHEXYLOXYPHENOL M ETHOXYPHENYL TRIAZINE 4.00 4.00 4.00 HYDROXYETHYL ACRYLATE / SO DIUM ACRYLOYLDIMETHYL TA URATE COPOLYMER 0.75 0.75 0.75 DICAPRYLYL CARBONATE 3.00 3.00 3.00 TRISODIUM ETHYLENEDIAMINE D ISUCCINATE 0.35 0.35 0.35 PERLITE 0.25 0.25 0.25 HYDROXYACETOPHENONE 0.30 0.30 0.30 C12-22 ALKYL ACRYLATE / HYDROXYETHYLACRYLA TE COPOLYMER 0.50 0.50 0.50 XANTHAN GUM (XANTHAN GUM) 0.30 0.30 0.30 CELLULOSE 1.00 1.00 1.00 CITRIC ACID 0.00 0.00 0.00 ZINC OXIDE (and) TRIETHOX γCAPRYLYLSILANE 8.60 8.60 8.60 Silica silylate (spherical particle) - 2% 1% Silica (spherical particle) - 2% 2% Silica silylate (amorphous particle) - - 0.1% Pearlite (amorphous particle) - - 3% Glossmeter measurement 83.4 42.6 6.8
[0270] These results indicate that spherical particles alone had a reduction in brightness in the tested compositions containing zinc oxide (Comparative Example 7 versus Comparative Example 6), however, the combination of spherical particles and amorphous particles unexpectedly resulted in a composition having matte properties characterized by brightness unit measurements at 85° of less than 10 GU (Inventive Example 3 versus Comparative Example 6).
Claims
Demands
1. Emulsion composition comprising a UV-absorbing system comprising at least one ultraviolet (UV) attenuating physical material, preferably at least one metal oxide, preferably at least one metal oxide selected from titanium, chromium, zinc, tin, alumina, cerium, and / or iron oxides, and a particulate portion comprising at least one substantially spherical particulate material and at least one amorphous particulate material.
2. Composition according to claim 1, further comprising a surfactant system comprising at least one surfactant with high hydrophilic-lipophilic balance (HLB).
3. Composition according to any one of the preceding claims, further comprising a thickening system comprising at least one anionic polysaccharide thickening agent and / or at least one amphiphilic thickening agent.
4. Composition according to any one of the preceding claims, wherein at least one ultraviolet (UV) attenuating physical material is present in the composition in an amount of at least 5% by weight relative to the total weight of the composition, preferably from about 5% to about 40% by weight relative to the total weight of the composition.
5. Composition according to claim 1, wherein at least one UV-absorbing system essentially contains at least one ultraviolet (UV) attenuating physical material.
6. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material is surface treated with a surface treatment agent, preferably the surface treatment agent comprising at least one of amino acids, beeswax, fatty acids, fatty acid salts, fatty alcohols, anionic surfactants, lecithin compounds, metal alkoxides, polyethylene, silicones, proteins, alkanolamines, silicon oxides, metal oxides, sodium hexametaphosphate, alumina, glycerol, and mixtures thereof.
7. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material comprises zinc oxide and / or titanium dioxide, preferably passivated.
8. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material comprises zinc oxide and / or titanium dioxide, preferably zinc oxide coated with a coating agent, preferably the coating comprising at least one of hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl, hexyl dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, and mixtures thereof.
9. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material comprises zinc oxide, preferably passivated or coated with hydrated silica and / or hydrogen dimethicone.
10. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material has an average primary particle size of 1 nm to 500 nm, preferably 5 nm to 250 nm, preferably 10 nm to 100 nm, preferably 10 to 50 nm, preferably 20 nm to 40 nm.