Patent Application
20180098615
The present invention is generally directed to a keratinous treatment kit and a method for treating keratinous substrates. More specifically, the present invention is directed to a keratinous treatment kit including a hybrid applicator, a handpiece and a semi-solid or solid non-Newtonian cosmetic composition, and a keratinous treatment method of providing the keratinous treatment kit.
For all those who use facial makeup, particularly on a regular basis, there is the ongoing requirement of effectively removing existing makeup before applying new makeup, both to maintain good skin health and also to facilitate the application of new makeup.
Typically, conventional applicator devices have utilized a liquid cosmetic composition during treatment. The liquid cosmetic composition, however, is not entirely user-friendly. In particular, during handling or traveling, the liquid cosmetic composition has big/bulky volume and is likely to escape or spill the composition inadvertently from a package. In addition, the conventional applicator device has not been sufficiently effective to treat a keratinous substrate.
Therefore, there exists a need to provide a cosmetic kit comprising a semi-solid or solid non-Newtonian cosmetic composition that is configured such that rubbing or movement across the skin will transform the composition into a viscous oil, thereby being more travel-friendly and easier to handle; and an applicator device adopted to capture the semi-solid or solid non-Newtonian cosmetic composition and later transform them into a viscous oil.
The summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description of the invention. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
The present teachings contemplate a keratinous treatment kit including a semi-solid or solid non-Newtonian cosmetic composition, a hybrid applicator and a handpiece, and keratinous treatment method of utilizing the keratinous treatment kit.
In an exemplary embodiment, a cosmetic kit for applying a cosmetic composition onto a surface of keratinous tissue is provided. The cosmetic kit, packaged in a unitary package, includes a hybrid applicator, a handpiece, and a semi-solid or solid non-Newtonian cosmetic composition. The hybrid applicator includes a base and cleaning elements. The cleaning elements includes a bristled brush and an elastomer contact surface. The handpiece includes a body and a motor. The body is configured to receive the hybrid applicator, and the motor is arranged and disposed to provide oscillating motion to the hybrid applicator, when attached, relative to the body. The semi-solid or solid non-Newtonian cosmetic composition is transformable to a spreadable consistency when subjected to oscillating contact with the hybrid applicator.
In another exemplary embodiment, a cosmetic kit for applying a cosmetic composition onto a surface of keratinous tissue is provided. The cosmetic kit, packaged in a unitary package, includes a hybrid applicator, a handpiece, and a semi-solid or solid non-Newtonian cosmetic composition. The hybrid applicator includes a base and cleaning elements. The cleaning element includes a bristled brush and an elastomer contact surface. The handpiece includes a body and a motor. The body is configured to receive the hybrid applicator, and the motor is arranged and disposed to provide oscillating motion to the hybrid applicator, when attached, relative to the body. The semi-solid or solid non-Newtonian cosmetic composition, for example, may include anhydrous based systems containing shear sensitive raw materials, aqueous based systems containing shear sensitive raw materials, blends containing shear sensitive raw materials, or combinations thereof. The semi-solid or solid non-Newtonian cosmetic composition is transformable to a spreadable consistency when subjected to oscillating contact with the hybrid applicator.
In yet another exemplary embodiment, a method for cleansing and exfoliating a surface of keratinous tissue includes the step of providing a hybrid applicator comprising a base and cleaning elements comprising a bristled brush and a contact surface. The contact surface may be formed of elastomers including but not limited to TPE, TPU, silicone and combinations thereof. In some particular embodiments, the elastomer is TPE. The method further includes the step of providing a handpiece comprising a body and a motor. The body is configured to receive the hybrid applicator, and the motor is arranged and disposed to provide oscillating motion to the hybrid applicator, when attached, relative to the body. The method further includes the step of applying a semi-solid or solid non-Newtonian cosmetic composition onto the hybrid applicator. The semi-solid or solid non-Newtonian cosmetic composition, for example, may include the group consisting of anhydrous based systems containing shear sensitive raw materials, aqueous based systems containing shear sensitive raw materials, blends containing shear sensitive raw materials or combinations thereof. The method further includes the step of applying the cosmetic composition onto the hybrid applicator. The method further includes the step of actuating the hybrid applicator by controlling a control switch and one of a multimodal switch and knobs to select one of two or more modes of operation. The modes of operation can be selected from at least (i) a cosmetic shear-thinning mode characterized by operation of the hybrid applicator at or above a frequency about 100 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak, the cosmetic shear-thinning mode providing shear-thinning/destructing of the cosmetic composition to a consistency suitable for application, (ii) a cosmetic melting mode characterized by operation of the hybrid applicator at or above a frequency about 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak, the cosmetic melting mode providing melting of the cosmetic composition to a consistency suitable for application; and (iii) an application mode characterized by operation alternating between two frequencies 100 Hz and 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak, the application mode enabling application to the surface of keratinous tissue.
Other features and advantages of the present invention will be apparent from the following more detailed description of the embodiments which illustrate, by way of example, the principles of the invention.
The exact dimension may vary from dimensions shown in figures, depending upon the nature of application.
Wherever possible, the same reference numbers will be used throughout the drawings to represent the same parts.
The detailed description set forth below in connection with the appended drawings where like numerals reference like elements is intended as a description of various embodiments of the disclosed subject matter and is not intended to represent the only embodiments. Each embodiment described in this disclosure is provided merely as an example or illustration and should not be construed as preferred or advantageous over other embodiments. The illustrative examples provided herein are not intended to be exhaustive or to limit the claimed subject matter to the precise forms disclosed.
All numbers expressing quantities of ingredients and/or reaction conditions are to be understood as being modified in all instances by the term “about”, unless otherwise indicated.
All percentages and ratios are calculated by weight unless otherwise indicated. All percentages are calculated based on the total weight of a composition unless otherwise indicated. All component or composition levels are in reference to the active level of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources.
The articles “a” and “an,” as used herein, mean one or more when applied to any feature in embodiments of the present invention described in the specification and claims. The use of “a” and “an” does not limit the meaning to a single feature unless such a limit is specifically stated. The article “the” preceding singular or plural nouns or noun phrases denotes a particular specified feature or particular specified features and may have a singular or plural connotation depending upon the context in which it is used. The adjective “any” means one, some, or all indiscriminately of whatever quantity.
The term “applying a cosmetic composition onto a surface of keratinous tissue”, as used herein, and variations of this phrase are intended to mean contacting the fibers, with at least one of the compositions of the invention, in any manner.
The term “at least one,” as used herein, means one or more and thus includes individual components as well as mixtures/combinations.
The term “comprising” (and its grammatical variations), as used herein, is used in the inclusive sense of “having” or “including” and not in the exclusive sense of “consisting only of.”
The term “keratinous substrate”, as used herein, includes, but is not limited to, skin, nails or hair. “Keratinous substrate” also includes “keratinous tissue” or “keratinous fibers,” which as defined herein, may be human keratinous fibers, and may be chosen from, for example, hair, such as hair on the human head, or hair comprising of eyelashes or hair on the body.
The term “treat” (and its grammatical variations), as used herein, refers to the application of the compositions of the present invention onto keratinous substrates such as keratinous fibers or skin.
The term “semi-solid” and variations of this phrase, as used herein, refer to a highly viscous substance that lies along the boundary between solid and liquid.
The term “unidoses” and variations of this phrase, as used herein, refer to a singular composition or substance that does not require secondary counterparts.
The term “shear sensitive raw materials”, as used herein, refers to substances sensitive to shears.
The term “shear thinning/destructuring” and variations of this phrase, as used herein, refer to lowering the viscosity of the composition as shears applied to the composition increases.
The term “melting”, as used herein, refers to a phase transition of a substance from a solid to liquid.
Referring to
In addition, referring to
It was further unexpectedly discovered by the inventors that the speed of rotation needed to achieve a shear thinning effect would be so high that it would twist the skin, resulting in too much friction that would scratch the skin and lead to irritation. This discovery is important because it demonstrates that the device's oscillation and amplitude settings without rotation, according to the present disclosure, can uniquely deliver a shear-thinning/destructuring benefit in a first mode; and upon actuation to a second mode, can safely oscillate when in contact with skin to provide even application of the cosmetic composition, thus providing a competitive advantage over devices using rotational motions.
Hybrid Applicator Device
In some embodiments, the motor may present an electric drive motor assembly. The drive motor assembly in an embodiment may include a power storage source, a drive control, a drive shaft, and a drive motor. The drive control and drive motor may be powered by the power storage source. The motor, according to the invention, may not deliver rotational and vibrational motions in an exemplary embodiment. The motor may deliver only an oscillating motion via the drive shaft to the brush or applicator in the exemplary embodiment. The motor transmits oscillating motion to the hybrid applicator through the body of the handpiece, when the hybrid applicator is attached to the body of the handpiece. In accordance with the descriptions herein of representative embodiments, when referred to, the degrees of motion and/or amplitude are with respect to peak-to-peak oscillating motions.
Referring to
A user may subsequently apply a semi-solid or solid non-Newtonian cosmetic composition onto applicator 14. A user, then, may press the switch 28 once more to start transformation of the cosmetic composition to a spreadable consistency. The spreadable consistency may include but not be limited to viscous oil. The transformation mode may further include two modes of operation: a cosmetic shear-thinning mode and a cosmetic melting mode. The shear-thinning mode may drive the applicator with an oscillating motion at or above a frequency about 100 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. Similarly, the cosmetic melting mode may drive the applicator with an oscillating motion at or above a frequency about 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. A user may transition between the cosmetic shear-thinning mode and the cosmetic melting mode using the control switch 26. The oscillating motion may provide complete transformation of the cosmetic composition to a spreadable consistency. While being transformed to a spreadable consistency either by the cosmetic shear-thinning mode or the cosmetic melting mode, the built-in illuminating indicator may emit red light. Once transformation is completed, the built-in illuminating indicator may change from red to green to notify users that the device is ready for application. A user, then, may press the switch 28 to apply the transformed cosmetic composition to a surface of keratinous tissue. In some embodiments, the application mode may drive the applicator with oscillating motions alternating between two frequencies. In other embodiments, the application mode may drive the applicator with oscillating motions alternating between frequencies 100 Hz and 175 Hz or other frequency combinations that are complimentary to the resonance characteristics of the motor drive 18 system with an oscillation amplitude in the range of 3-18° peak-to-peak. In yet other embodiments, the application mode may drive the applicator with oscillating motions alternating between one frequency at or above 100 Hz and the other frequency at or above 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. In yet other embodiments, the application mode may drive the applicator with oscillating motions at a frequency between 100 Hz and 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. In yet other embodiments, the application mode may drive the applicator with oscillating motions at a frequency at or below 100 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak to minimize potential damage to the skin. During the application mode, a user may press the switch 28 to stop application temporarily. A user may press the switch 28 again to renew the application. In some embodiments, the application mode may deliver the applicator with oscillating motions for pre-determined time. Once application is finished, a user may manually press the switch 28 for predetermined time (e.g. three seconds) in order to turn off the device completely. The built-in illuminating indicator may be turned off as well to notify the user that the device is turned off.
In alternative embodiments, the handpiece 10 may include knobs in addition to multimodal switch 28. In other embodiments, the handpiece 10 may include knobs instead of multimodal switch. The knobs may have multiple operational modes. For example, the knobs may have three operational modes: initiation, transformation, and application modes. A user may easily rotate the knobs to switch among the three operational modes. In the beginning, a user may press the switch 28 for predetermined time (e.g. three seconds) to turn on the hybrid applicator device. A user may initiate the hybrid applicator device by rotating the knobs. Once initiation is completed, a user may subsequently apply a semi-solid or solid non-Newtonian cosmetic composition onto applicator 14. A user then may rotate the knobs to start the transformation of the cosmetic composition to a spreadable consistency. The transformation mode may further include two modes of operation: a cosmetic shear-thinning mode and a cosmetic melting mode. The shear-thinning mode may drive the applicator with an oscillating motion at or above a frequency about 100 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. Similarly, the cosmetic melting mode may drive the applicator with an oscillating motion at or above a frequency about 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. In general, as amplitude and frequency increase, the melting effect is improved. A user may transition between the cosmetic shear-thinning mode and the cosmetic melting mode using the control switch 26. The knobs may further adjust the oscillation amplitude at users' preferences. The oscillating motion may provide complete transformation of the cosmetic composition to a spreadable consistency. A user, then, may press rotate the knobs to apply the transformed cosmetic composition to a surface of keratinous tissue. In some embodiments, the application mode may drive the applicator with oscillating motions alternating between two frequencies. In other embodiments, the application mode may drive the applicator with oscillating motions alternating between frequencies 100 Hz and 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. In yet other embodiments, the application mode may drive the applicator with oscillating motions alternating between one frequency at or above 100 Hz and the other frequency at or above 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. In yet other embodiments, the application mode may drive the applicator with oscillating motions at a frequency between 100 Hz and 175 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak. In yet other embodiments, the application mode may drive the applicator with oscillating motions at a frequency at or below 100 Hz with an oscillation amplitude in the range of 3-18° peak-to-peak to minimize potential damage to the skin. During the application mode, a user may press the switch 28 to stop application temporarily. A user may press the switch 28 again to renew the application. In some embodiments, the application mode may deliver the applicator with oscillating motions for pre-determined time. Once application is finished, a user may manually press the switch 28 for predetermined time (e.g. three seconds) in order to turn off the device completely. The built-in illuminating indicator may be turned off as well to notify the user that the device is turned off.
In other embodiments, the control switch 26 may have two buttons: an upper push button and a lower push button. During the transformation or application, a user may press the upper push button to increase the frequency of an oscillating motion. Similarly, a user may press the lower push button to decrease the frequency of an oscillating motion.
In some embodiments, other computer intelligence (i.e. RFID, NFC, Bluetooth) may be used to change internal settings including multiple operational modes. In embodiments with RFID communication between brush heads equipped with RFID tags and the handle can result in the microprocessor 24 set-up to enable during the use protocol a mix of frequencies and amplitudes that provide improved shear thinning characteristics of a particular formula or improved user perception. With RFID controls, the applicator may be driven with an oscillating motion at a frequency within the range of about 60-300 Hz and at any suitable amplitude between 3-18° peak-to-peak all in the same use period.
In some embodiments, the applicator 14 may be used with a Newtonian cosmetic composition as well. The Newtonian cosmetic composition including but not limited to liquid or soft formulations (oil, emulsions) or powder (Newtonian solid) could be used with the hybrid applicator in such a way that the applicator depression serves a fill line for dosing and allows more accurate product use.
The oscillating motion of the hybrid applicator at or above a frequency higher than 100 Hz with an amplitude in the range of 3-18° peak-to-peak may provide shear-thinning/destructuring of the semi-solid or solid non-Newtonian cosmetic composition.
Referring to
In some embodiments, the oscillating motion of the hybrid applicator at a frequency higher than a frequency f1 with an amplitude in the range of 3-18° peak-to-peak may provide shear-thinning/destructuring of the semi-solid or solid non-Newtonian cosmetic composition. The semi-solid or solid non-Newtonian cosmetic composition, for example, may include anhydrous based systems containing shear sensitive raw materials, aqueous based systems containing shear sensitive raw materials, blends containing shear sensitive raw materials or combinations thereof.
In some embodiments, the oscillating motion of the hybrid applicator at a frequency higher than a frequency f2 within a range of amplitude of with an amplitude in the range of 3-18° peak-to-peak may provide melting of the semi-solid or solid non-Newtonian cosmetic composition. The semi-solid or solid non-Newtonian cosmetic composition, for example, may include anhydrous based systems containing shear sensitive raw materials, aqueous based systems containing shear sensitive raw materials, blends containing shear sensitive raw materials, and combinations thereof.
In operation, with each of the embodiments, kinetic energy from the oscillating motor is coupled into the brush, which is oscillating at the above-noted frequency and amplitude. In an embodiment, the non-Newtonian solid, semi-solid, gel or the like dose of a formulation reversibly transforms from a solid, semi-solid, gel or the like in the presence of an applied energy stimulus. This transformation enables customers to provide good spreading and deposition via shear-thinning/destructuring upon use with the cosmetic kit by delivering a less viscous composition as unidoses for cosmetic purposes. In an embodiment, once the applied energy stimulus is stopped, the non-Newtonian solid, semi-solid, gel or the like dose returns to its solid, semi-solid, gel or the like state. In an embodiment, the non-Newtonian solid, semi-solid, gel or the like dose of a formulation reversibly transforms from a solid, semi-solid, gel or the like to a liquid by the kinetic energy coupled to the brush, with the liquid then applied to the human skin for removal of makeup, application of a cosmetic coating and the like. The non-Newtonian shear-thinning material changes state from a solid, semi-solid, gel or the like to a liquid in the presence of an applied energy stimulus, and changes back to a solid, semi-solid, gel or the like in the absence of the applied energy stimulus. A shear-thinning material by definition is one in which when an applied shear stress is increased, the material's viscosity decreases in a nonlinear way. This results in the material changing its state from a solid, semi-solid, gel or the like to a liquid. In the present case, this permits a solid, semi-solid, gel or the like tablet of balm to be initially conveniently and reliably anchored or staked to the applicator. The appliance with the applicator can then be elevated to a vertical position adjacent the skin without the solid, semi-solid, gel or the like tablet falling out or a liquid spilling away. It is advantageous for users to apply cosmetics in a controlled manner upon use with the appliance.
The coupling of the kinetic energy from the motor to the applicator and to the solid, semi-solid, gel or the like balm tablet can be accomplished in a number of ways with the present applicator. First, the applicator in one or more embodiments has filaments or other flexible members such that when the applicator is oscillated, the filaments will flex and move, rubbing against the non-Newtonian solid, semi-solid, gel or the like balm tablets staked in the applicator. Further, kinetic energy may be coupled directly to the applicator through the use of a stake or stakes or other elements fixedly contacting the solid, semi-solid, gel or the like balm element. Still further, the solid, semi-solid, gel or the like balm element can be staked or held in such a way in the applicator that when the applicator oscillates, the balm tablet contacts a region of the skin and by virtue of the shear forces in that plane, the non-Newtonian solid, semi-solid, gel or the like dose changes to a liquid for effective removal of makeup.
One embodiment is shown in
In an embodiment, the inner portion of the brush includes at its center a stake element 38 which in the embodiment shown is a plastic silicon part with a Shore hardness of 40 A in the embodiment shown. The stake 38 is approximately 0.2 inches high and is approximately conical in shape. Stake 38 serves as an anchoring member for the non-Newtonian dose element 39. In an embodiment, the stake 38 includes symmetrical or non-symmetrical structures to further help anchor a non-Newtonian solid, semi-solid, gel or the like tablet. In an embodiment, one or more regions of the inner portion include tufts or bristles of elastomeric protrusions arranged in regular or irregular patterns. In some other embodiments, the applicator optionally may not contain the stake element 38.
Surrounding the stake 38 in the embodiment shown in
Materials of different stiffness in the driven applicator can cause an out-of-phase motion between those materials. In the case of the present applicator, the motion is approximately 140°-180° out-of-phase between the innermost ring 46 of soft filaments including but not limited to single and double tapered PBT filaments, DuPont supersoft filaments, nylon, PET, PBT (polyester) elastomeric filaments, including supersoft/Hytrel™, cellulose, polycarbonate, etc.
Supersoft filaments in the inner applicator portion and the outermost (fourth) row 43 of elastomeric protrusions. Thus in various embodiments, the motion may be approximately from 140, 150, 160, 170 to about 180°, including increments and intervals therein. When the loaded inner applicator portion moves at 175 Hz with an amplitude in the range of 4-9°, with radii of the two above elements at 0.335 inches and 0.375 inches, respectively, directional velocities of 8.03-18.50 inches per second and 9.08-20.56 inches per second result. Since the above two elements of the inner applicator are moving, respectively, within the two velocity ranges described above, 140°-180° out-of-phase, the relative velocity between the two rings of elements is much higher than that indicated above. The relative velocity, i.e. the sum of the two individual velocities, that the solid, semi-solid, gel or the like balm tablet would experience would range from 7.06 inches per second to 39.06 inches per second. Within this range of relative velocity, the balm tablet shear thins from solid, semi-solid, gel or the like to a liquid under normal loading conditions. The liquid makeup remover formulation, with the oscillating action of the inner portion of the applicator, operates to effectively and quickly remove facial makeup.
A second embodiment is shown in
The bristled brush, according to the invention, may be synthetic, natural, or combinations thereof. It may be, for example, vegetable or natural fibers, metal such as steel, glass, wood, elastically deformable materials such as vulcanized elastomers or thermoplastic materials or combinations thereof.
Slight variation in bristle heights of the bristled brush can enhance the exfoliation of a surface of keratinous tissue from the epidermis.
The TPE, for example, may include Styrenic block copolymers (TPE-s), Thermoplastic olefins (TPE-o), Elastomeric alloys (TPE-v or TPV), Thermoplastic polyurethanes (TPU), Thermoplastic copolyester, Thermoplastic polyamides, Santoprene (ExxonMobil), Termoton (Termopol Polimer), Arnitel (DSM), Solprene (Dynasol), Engage (Dow Chemical), Hytrel (DuPont), Dryflex and Mediprene (ELASTO), Kraton (Kraton Polymers), Pibiflex, Forprene, Termoton-v, Sofprene (SBS) and Larprene (SEBS).
Semi-Solid or Solid Non-Newtonian Cosmetic Composition
Referring to
Compositions
The compositions of the present disclosure are generally anhydrous compositions, such that they contain little to no water (e.g., less than 1% by weight water, relative to the total weight of the compositions). The compositions include at least one oil phase and at least one non-ionic surfactant. The oil phase includes one or more linear (i.e., unbranched) fatty esters, such as cetyl palmitate, which can assist in providing a molded shape to the compositions and/or provide skin benefits. In some embodiments, the oil phase can further include at least one branched fatty esters, such as ethylhexyl palmitate and/or isocetyl stearate, which can assist in providing skin cleansing properties, good skin feel, and skin care benefits.
In some embodiments, the compositions of the present disclosure include about 70% to about 95% (e.g., about 70%-about 85%, about 70% to about 80%, about 75% to about 90%, about 80% to about 90%, about 80% to about 95%, or about 90% to about 95%) by weight of the oil phase, of which about 1% to about 30% by weight (e.g., about 10% to about 25% by weight) is the at least one linear (i.e., unbranched) fatty ester; and about 4% to about 8% (e.g., about 4% to about 6%, about 5% to about 8%, about 6% to about 8%) by weight of the at least one non-ionic surfactant, where the weight percentages are relative to the total weight of the compositions. Thus in various embodiments, the compositions of the present disclosure include from about 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86,87, 88, 89, 90, 91, 92, 93, 94 to about 95% by weight of the oil phase, including increments and intervals therein, from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 to about 30% by weight of at least one linear (i.e., unbranched) fatty ester, including increments and intervals therein; and from about 4, 5, 6, 7 to 8% by weight of the at least one non-ionic surfactant, including increments and intervals therein, where the weight percentages are relative to the total weight of the compositions.
In some embodiments, the at least one linear fatty ester is present in a given composition in an amount of about 1% to about 30% by weight (e.g., about 10% to 25% by weight), relative to the total weight of the composition. For example, the at least one linear fatty ester can be present in an amount of about 1% or more (e.g., about 5% or more, about 10% or more, about 20% or more, or about 25% or more) and/or about 30% or less (e.g., about 25% or less, about 20% or less, about 10% or less, or about 5% or less) by weight in the composition, relative to the total weight of the composition. Thus in various embodiments, the at least one linear fatty ester is present in a given composition in an amount from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 to about 30% by weight, including increments and intervals therein, relative to the total weight of the composition.
In some embodiments, the at least one linear fatty acid is cetyl palmitate.
In some embodiments, the at least one branched fatty ester is present in a given composition in an amount of about 1% to about 60% (e.g., about 20% to about 60%, about 25% to about 55%, about 1 to about 40%, or about 5% to about 35%) by weight, relative to the total weight of the composition. For example, the at least one branched fatty ester is present in a given composition in an amount of about 1% or more (e.g., about 5% or more, about 20% or more, about 25% or more, about 35% or more, or about 45% or more) and/or about 60% or less (e.g., about 45% or less, about 35% or less, about 25% or less, about 20% or less, or about 5% or less) by weight, relative to the total weight of the composition. Thus in various embodiments, the at least one branched fatty ester is present in a given composition in an amount from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59 to about 60% by weight, including increments and intervals therein, relative to the total weight of the composition.
In some embodiments, the at least one branched fatty ester is ethylhexyl palmitate and/or isocetyl stearate.
In some embodiments, the compositions do not contain paraffin wax, mineral oil, or an anionic surfactant, or any combination thereof.
Oil Phase
As described above, the compositions of the present disclosure include an oil phase. The oil phase can include three major groups of compounds: oils (which include fats and butters), esters, and waxes. In some embodiments, in addition to the at least one linear fatty ester in the oil phase of the compositions, the oil phase further includes an oil, a wax, an ester, or any combination thereof. In some embodiments, in addition to the at least one linear fatty ester in the oil phase of the compositions, the oil phase further includes an oil, a wax, an ester, or any combination thereof; the ester can be other than a linear fatty ester. In certain embodiments, in addition to the at least one linear fatty ester in the oil phase of the compositions, the oil phase further includes an oil, a wax, an ester, or any combination thereof; the ester can be other than a linear or branched fatty ester. The oil phase can provide emollient properties to the compositions.
Oils
In some embodiments, when the oil phase further includes an oil, the oil is present in an amount of about 0.5% to about 20% (e.g., about 1% to about 20%, about 1% to about 15%, about 5% to about 15%, about 5% to about 10%, about 0.5% to about 5%, or about 0.5% to about 2%) by weight, relative to the total weight of the composition. For example, the oil can be present in a given composition in an amount of about 0.5% or more (e.g., about 1% or more, about 2% or more, about 5% or more, about 10% or more, or about 15% or more) and/or about 20% or less (e.g., about 15% or less, about 10% or less, about 5% or less, about 2% or less, or about 1% or less) by weight, relative to the total weight of the composition. Thus in various embodiments, when the oil phase further includes an oil, the oil is present in an amount from about 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 to about 20% by weight, including increments and intervals therein, relative to the total weight of the composition.
In some embodiments, when the oil phase further includes an oil, the oil can include natural oils. As used herein, the oil includes both oils and fats (which are generally solid at room temperature). Oils (including fats and butters) are glycerol esters composed of glycerol and fatty acids and are called triglycerides. The fatty acids can be saturated (no double bonds between the carbon atoms) or unsaturated (one or more double bonds), which can influence the stability and property of the oil. Oils having a high degree of saturated fatty acids (e.g., lauric, myristic, palmitic and stearic acids) include coconut oil, cottonseed oil, and palm oil. Oils with a high degree of unsaturated fatty acids (e.g., oleic, arachidonic, linoleic acid) include canola oil, olive oil, corn oil, almond oil, safflower oil, castor oil and avocado oil.
It is believed that saturated oils can be more stable and do not become rancid as quickly as unsaturated oils; while unsaturated oils can be smoother, more precious, less greasy, and better absorbed by the skin.
The oils in the oil phase can include natural butters such as shea butter, avocado butter, and/or cocoa butter. Natural butters can be good emollients and thickeners and, can have antioxidant and soothing properties (e.g., shea and avocado butters, which include phenolic compounds).
The oils can be of plant or animal origin. Examples of plant oils include linseed oil, camellia oil, macadamia nut oil, sunflower oil, apricot oil, soybean oil, arara oil, hazelnut oil, corn oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, grapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof. Examples of animal oils include perhydrosqualene and squalane. In some embodiments, the oils can be botanical oils.
In some embodiments, the oil is olive oil, shea butter, linseed oil, camellia oil, macadamia nut oil, sunflower oil, apricot oil, soybean oil, arara oil, hazelnut oil, corn oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, grapeseed oil, sesame oil, soybean oil, peanut oil, avocado butter, cocoa butter, squalene, perhydrosqualene, or any combination thereof.
Waxes
In some embodiments, when the oil phase further includes a wax, the wax is present in an amount of about 1% to about 15% (e.g., about 1% to about 10%, about 5% to about 15%, about 5% to about 10%, about 10% to about 15%, or about 5% to about 8%) by weight, relative to the total weight of the composition. For example, the wax can be present in a given composition in an amount of about 1% or more (e.g., about 5% or more, about 8% or more, about 10% or more, or about 12% or more) and/or about 15% or less (e.g., about 12% or less, about 10% or less, about 8% or less, or about 5% or less) by weight, relative to the total weight of the composition. Thus in various embodiments, when the oil phase further includes a wax, the wax is present in an amount from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 to about 15% by weight, including increments and intervals therein, relative to the total weight of the composition.
In some embodiments, when the oil phase further includes a wax, the wax includes natural waxes and synthetic waxes (which include emulsifying waxes). In some embodiments, waxes include esters of a fatty acid and a fatty alcohol, and can be complex mixtures of heavy hydrocarbons and fatty acids combined with esters. As used herein, waxes do not include glycerides. In general, waxes can be harder, less greasy and more brittle than fats, and are resistant to moisture, oxidization and microbial attack. Waxes can be characterized by a high melting point (50-100° C.). In some embodiments, waxes (e.g., beeswax) can be an emollient and thickener, and can provide emulsifying properties. In certain embodiments, waxes (e.g., carnauba and candelilla wax) can provide hardness and have relatively high melting points. Synthetic waxes can include hydroxyoctacosanyl hydroxystearate, cetyl palmitate (or cetyl ester wax).
Waxes can include animal waxes (e.g., beeswax, lanolin), plant waxes (e.g., carnauba wax, candililla wax, jojoba wax), mineral waxes (e.g., ozokerite, microcrystalline wax including mixed refined hydrocarbons, ceresin, petrolatum), and synthetic waxes.
In some embodiments, the wax is selected from synthetic wax, carnauba wax, microcrystalline waxes, ozokerites, hydrogenated jojoba oil, polyethylene waxes (e.g., “Performalene 400 Polyethylene” and “Performalene 500 Polyethylene,” available from New Phase Technologies), silicone waxes (e.g., poly(C24-C28)alkylmethyldimethylsiloxane, available as “Abil Wax 9810” sold by the company Goldschmidt), C20-C40 alkyl stearate (e.g., “Kester Wax K82H” available from the company Kester Keunen), stearyl benzoate, shellac wax, and mixtures thereof. For example, the oil phase can include a wax selected from carnauba wax, candelilla wax, ozokerites, hydrogenated jojoba oil and polyethylene waxes. In some embodiments, the wax is candelilla wax, ozokerite, or mixtures thereof. In some embodiments, the wax is a polyethylene wax, a synthetic wax, a carnauba wax, a microcrystalline wax, an ozokerite, a hydrogenated jojoba oil, or a combination thereof.
Esters
As discussed above, the compositions of the present disclosure can include linear fatty esters, or a combination of linear and branched fatty esters. In some embodiments, the at least one linear fatty ester is present in a given composition in an amount of about 1% to about 30% by weight (e.g., about 10% to about 25% by weight), relative to the total weight of the composition. For example, the at least one linear fatty ester can be present in an amount of about 1% or more (e.g., about 5% or more, about 10% or more, about 20% or more, or about 25% or more) and/or about 30% or less (e.g., about 25% or less, about 20% or less, about 10% or less, or about 5% or less) by weight in the composition, relative to the total weight of the composition. Thus, in various embodiments, the at least one linear fatty ester is present from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 to about 30% by weight, including increments and intervals therein, relative to the total weight of the composition.
In some embodiments, the at least one branched fatty ester is present in a given composition in an amount of about 1% to about 60% (e.g., about 20% to about 60%, about 25% to about 55%, about 1 to about 40%, or about 5% to about 35%) by weight, relative to the total weight of the composition. For example, the at least one branched fatty ester is present in a given composition in an amount of about 1% or more (e.g., about 5% or more, about 20% or more, about 25% or more, about 35% or more, or about 45% or more) and/or about 60% or less (e.g., about 45% or less, about 35% or less, about 25% or less, about 20% or less, or about 5% or less) by weight, relative to the total weight of the composition. As used herein, a “branched fatty ester” includes fatty esters having cyclic moieties (e.g., sugars) and/or branched ester (e.g., branched hydrocarbons). Thus, in various embodiments, the at least one branched fatty ester is present from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59 to about 60% by weight, including increments and intervals therein, relative to the total weight of the composition.
In some embodiments, fatty esters are obtained by direct reaction of fatty acids with alcohols. Examples of the fatty esters of fatty alcohols and/or of fatty acids include fatty esters of saturated or unsaturated, linear or branched C1-C26 aliphatic mono- or polyacids and of saturated or unsaturated, linear or branched C1-C26 aliphatic mono- or polyalcohols, the total carbon number of the fatty esters being greater than or equal to 10.
In some embodiments, the fatty esters can be monoesters, such as dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; cetyl lactate; C12-C15 alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso)stearyl octanoate; isocetyl octanoate; octyl octanoate; cetyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methylacetyl ricinoleate; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononate; cetyl palmitate, ethylhexyl palmitate, isocetyl stearate, octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, 2-ethylhexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl, myristyl or stearyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate.
In some embodiments, fatty esters of C4-C22 dicarboxylic or tricarboxylic acids and of C1-C22 alcohols and esters of mono-, di- or tricarboxylic acids and of C2-C26 di-, tri-, tetra- and/or pentahydroxy alcohols can be used in the oil phase. For example, the esters can include diethyl sebacate; diisopropyl sebacate; diisopropyladipate; di-n-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityltetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate; tridecyl erucate; triisopropyl citrate; triisostearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate; and/or polyethylene glycol distearates.
In some embodiments, the fatty esters are selected from ethyl, isopropyl, myristyl, cetyl palmitate, stearyl palmitate, 2-ethylhexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl or 2-octyldodecyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; isocetyl stearate, dioctyl malate, hexyl laurate, 2-hexyldecyl laurate, isononyl isononanoate and cetyl octanoate. In some embodiments, the fatty esters are selected from cetyl palmitate, 2-ethylhexyl palmitate, isocetyl stearate, and any combination thereof. In some embodiments, the fatty esters are selected from cetyl palmitate, 2-ethylhexyl palmitate, and any combination thereof. In some embodiments, the fatty esters are selected from cetyl palmitate, isocetyl stearate, and any combination thereof. In some embodiments, the fatty ester is cetyl palmitate.
In some embodiments, the fatty esters can include sugar esters and diesters of C6-C30 fatty acids (e.g., C12-C22 fatty acids). As used herein, the term “sugar” refers to oxygen-bearing hydrocarbon-based compounds containing several alcohol functions, with or without aldehyde or ketone functions, and which contain at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides or polysaccharides. Examples of suitable sugars include sucrose (or saccharose), glucose, galactose, ribose, fructose, maltose, mannose, arabinose, xylose and lactose, and derivatives thereof, alkyl derivatives thereof, such as methyl derivatives thereof, for instance methylglucose.
In some embodiments, the sugar esters of fatty acids are selected from the esters or mixtures of esters of sugars described previously and of linear or branched, saturated or unsaturated C6-C30 fatty acids (e.g., C12-C22 fatty acids). If the sugar esters of fatty acids are unsaturated, these compounds can include one to three conjugated or non-conjugated carbon-carbon double bonds. Esters according to this variant can include mono-, di-, tri-, tetraesters and polyesters, and mixtures thereof. These esters can be selected, for example, from oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates and arachidonates, or mixtures thereof such as oleo-palmitate, oleo-stearate and palmito-stearate mixed esters. In some embodiments, the sugar esters of fatty acids are monoesters and diesters, such as sucrose, glucose or methylglucose mono- or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates and oleo stearates.
In some embodiments, the fatty esters can include synthetic oils. As compared to the natural oils which have 3 chains of fatty acids (e.g., triglycerides), synthetic oils can have one fatty acid chain. Based on the variety of fatty acids and alcohols (e.g. butyl, isopropyl, ethylhexyl, myristyl, oleyl alcohol, cetyl), a wide range of synthetic oils can be obtained.
Other Fatty Materials
In some embodiments, in addition to the at least one linear fatty ester, the oil phase can further include any of a number of fatty materials (which can be an oil, an ester, or a wax; or components of an oil, an ester, or a wax), such as oils of animal or plant origin (described above), synthetic glycerides, esters of fatty alcohols and/or fatty acids (described above) other than animal or plant oils and synthetic glycerides, fatty alcohols, non-salified fatty acids, silicone oils and aliphatic hydrocarbons, and mixtures thereof. These fatty materials may be volatile or non-volatile. In some embodiments, the oil phase further includes a component selected from aliphatic hydrocarbons, plant oils, fatty alcohols, esters of fatty alcohols and/or fatty acids other than animal or plant oils and synthetic glycerides, and mixtures thereof. In certain embodiments, the oil phase further includes a component selected from aliphatic hydrocarbons.
Examples of aliphatic hydrocarbons include vaseline or petrolatum, naphthalenes, and the like; hydrogenated polyisobutene, isoeicosan, polydecenes, hydrogenated polyisobutenes such as Parleam, and decene/butene copolymer; and mixtures thereof. Examples of aliphatic hydrocarbons, can also include linear, branched, or cyclic C6-C16 lower alkanes. Examples of aliphatic hydrocarbons include hexane, undecane, dodecane, tridecane and isoparaffins such as isohexadecane and isodecane.
Examples of synthetic glycerides include caprylic/capric acid triglycerides, for instance those sold by the company Stearineries Dubois or those sold under the names Miglyol 810, 812 and 818 by the company Dynamit Nobel.
Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like; cyclic organopolysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like; and mixtures thereof.
In some embodiments, the oil phase includes at least one fatty acid. The fatty acids can be in acidic form, can be saturated or unsaturated, can contain from 6 to 30 carbon atoms (e.g., from 9 to 30 carbon atoms), and can be optionally substituted (e.g., with one or more hydroxyl groups, such as 1 to 4 hydroxyl groups). The unsaturated fatty acids can include one to three conjugated or non-conjugated carbon-carbon double bonds. The fatty acid can include, for example, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, and/or isostearic acid.
In some embodiments, the oil phase includes at least one fatty alcohol. As used herein, “fatty alcohol” refers to any saturated or unsaturated, linear or branched C8-C30 fatty alcohol, which can be optionally substituted (e.g., with one or more hydroxyl groups, such as 1 to 4 hydroxyl groups). In some embodiments, unsaturated fatty alcohols can include one to three conjugated or non-conjugated carbon-carbon double bonds. In some embodiments, the fatty alcohol is unsaturated and/or branched.
In some embodiments, the fatty alcohols are C12-C22 fatty alcohols. The fatty alcohols can include, for example, isostearyl alcohol, oleyl alcohol, linoleyl alcohol, undecylenyl alcohol, palmitoleyl alcohol, linolenyl alcohol, erucyl alcohol, and mixtures thereof. In some embodiments, cetyl alcohol, stearyl alcohol or a mixture thereof (e.g., cetearyl alcohol), as well as myristyl alcohol, can be used as a solid fatty material. In some embodiments, isostearyl alcohol can be used as a liquid fatty material. In one embodiment, the oil phase includes cetyl alcohol.
Non-Ionic Surfactants
As discussed above, the compositions of the present disclosure include at least one non-ionic surfactant. In some embodiments, the at least one non-ionic surfactant is present in a given composition in an amount of up to about 10% by weight of the undiluted non-ionic surfactant (e.g., up to about 8% by weight), relative to the total weight of the composition. For example, the at least one non-ionic surfactant can be present in the composition in an amount of about 1% or more (e.g., about 2% or more, about 3% or more, about 4% or more, about 5% or more, about 7% or more, or about 8% or more) and/or about 10% or less (e.g., about 8% or less, about 7% or less, about 5% or less, about 4% or less, about 3% or less, or about 2% or less) by weight of the undiluted non-ionic surfactant, relative to the total weight of the composition. In some embodiments, the at least one non-ionic surfactant is present in the composition in an amount of from about 4% to about 8% by weight of the undiluted non-ionic surfactant, relative to the total weight of the composition. Thus in various embodiments, when the at least one non-ionic surfactant is present in an amount from about 1, 2, 3, 4, 5, 6, 7, 8, 9 to about 10% by weight, including increments and intervals therein, relative to the total weight of the composition.
The nonionic surfactant of the present disclosure can have a hydrophilic-lipophilic balance (HLB) value of about 18.0 or less (e.g., from about 4.0 to about 18.0, from about 6.0 to about 15.0, from about 9.0 to about 13.0, or from about 9.0 to about 11.0). For example, the nonionic surfactant of the present disclosure can have a hydrophilic-lipophilic balance (HLB) value of about 18.0 or less (e.g., about 15.0 or less, about 13.0 or less, about 10.0 or less, about 5.0 or less, or about 3.0 or less). In some embodiments, the nonionic surfactant is selected from esters of polyols with fatty acids with a saturated or unsaturated chain containing for example from 8 to 24 carbon atoms (e.g., 12 to 22 carbon atoms), and alkoxylated derivatives thereof, such as glyceryl esters of a C8-C24 fatty acid or acids and alkoxylated derivatives thereof, polyethylene glycol esters of a C8-C24 fatty acid or acids and alkoxylated derivatives thereof, sorbitol esters of a C8-C24 fatty acid or acids and alkoxylated derivatives thereof, sugar (sucrose, glucose, alkylglycose) esters of a C8-C24 fatty acid or acids and alkoxylated derivatives thereof, ethers of fatty alcohols, ethers of sugar and a C8-C24 fatty alcohol or alcohols, and mixtures thereof.
In some embodiments, the non-ionic surfactant is selected from PEG-20 glyceryl triisostearate, PEG-7 glyceryl cocoate, PEG-20 methylglucoside sesquistearate, PG-5 dioleate, PG-4 diisostearate, PG-10 isostearate, PEG-8 stearate, PEG-8 isostearate, PEG-60 hydrogenated castor oil, and any combination thereof. In some embodiments, the non-ionic surfactant is PEG-20 glyceryl triisostearate.
Fillers
In some embodiments, the compositions of the present disclosure further include at least one filler. In some embodiments, the at least one filler is present in a given composition in an amount of up to about 20% by weight (e.g., up to about 15% by weight, up to about 10% by weight, up to about 5% by weight, or up to about 1% by weight), relative to the total weight of the composition. For example, the at least one filler can be present in the composition in an amount of about 0.1% or more (e.g., about 0.5% or more, about 1% or more, about 5% or more, about 10% or more, or about 15% or more) and/or about 20% or less (e.g., about 15% or less, about 10% or less, about 5% or less, about 1% or less, or about 0.5% or less) by weight, relative to the total weight of the composition. In some embodiments, the at least one filler is present in a given composition in an amount of from about 0.1% to about 10% (e.g., about 0.1% to about 1%, or about 0.5%) by weight, relative to the total weight of the composition. Thus in various embodiments, the at least one filler is present in an amount from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 to about 20% by weight, including increments and intervals therein, relative to the total weight of the composition.
Examples of fillers include silica silylate, kaolin, lauryl lysine, talc, bentone, cellulose beads (i.e., cellulobeads USF, available for example from Daito Kasei Kogyo), and any combination thereof. In some embodiments, the compositions include about 0.1% to about 1% (e.g., about 0.5%) by weight of silica silylate, relative to the total weight of the composition. In certain embodiments, the compositions include about 0.1% to about 1% (e.g., about 0.5%) by weight of silica silylate and about 0.1% to about 1% (e.g., about 0.5%) by weight of cellulose beads, relative to the total weight of the composition. Thus in various embodiments, the compositions are present in an amount from about 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 to about 1% by weight of silica silylate and/or cellulose beads, including increments and intervals therein, relative to the total weight of the composition.
The fillers (e.g., cellulose beads) can provide beneficial effects such as oil control, sebum control, sweat control, mattefying effects, and/or skin protective effects such as the ability to absorb pollutant particles to a composition.
Other Components
The compositions of the present disclosure can further include other components, such as phenylethyl resorcinol (i.e., Symwhite377, Symrise), capryloyl salicylic acid (i.e., LHA, Chimex), and a combination thereof. In some embodiments, the compositions of the present disclosure can include fragrances, antioxidants (e.g., vitamin E), plant extracts, and/or colorants.
In some embodiments, components such as fragrances, antioxidants, plant extracts, colorants, phenylethyl resorcinol, and capryloyl salicylic acid can each be present in a given composition in an amount of up to about 5% by weight (e.g., up to about 4% by weight, up to about 3% by weight, up to about 2% by weight, up to about 1% by weight, or up to about 0.5% by weight), relative to the total weight of the composition. For example, components such as fragrances, antioxidants, plant extracts, colorants, phenylethyl resorcinol, and capryloyl salicylic acid can each be present in a given composition in an amount of about 0.01% or more (e.g., about 0.05% or more, about 0.1% or more, about 0.5% or more, about 1% or more, about 1.5% or more, about 2% or more, about 3% or more, or about 4% or more) and/or about 5% or less (e.g., about 4% or less, about 3% or less, about 2% or less, about 1.5% or less, about 1% or less, about 0.5% or less, about 0.1% or less, or about 0.05% or less) by weight, relative to the total weight of the composition.
Formulations
In some embodiments, the composition includes about 5-10% by weight isocetyl stearate, about 45-55% by weight of ethylhexyl palmitate, about 0.5% by weight of silica silylate, about 15-25% by weight of cetyl palmitate, about 5-7% by weight of polyethylene, about 1% by weight of olive oil, about 1-2% by weight of shea butter, about 2% by weight of cetyl alcohol, about 0.1-2% by weight of caprylyl glycol, about 5% by weight of PEG-20 glyceryl triisostearate, about 5% by weight of neopentyl glycol diheptanoate, about 0.5% by weight of tocopherol, and about 0.1-1% by weight of plant extract and fragrance.
It is understood that for the compositions of the present disclosure, the sum of the percentages of the various components in any given composition is 100%, even though the sum of the ranges of the composition components may exceed 100%.
Properties of the Compositions
The compositions of the present disclosure can have a number of desirable properties. For example, the compositions can be molded via hot-pouring techniques. Examples of molded compositions disclosed herein are shown in
In some embodiments, the compositions can be solid at ambient temperature with a hardness of at least 35 g-force (e.g., at least 60 g-force). In some embodiments, the compositions have a hardness of 35 g-force or more (e.g., 40 g-force or more, 60 g-force or more, 80 g-force or more, or 100 g-force or more) and/or 130 g-force or less (e.g., 100 g-force or less, 80 g-force or less, 60 g-force or less, or 45 g-force or less), when the hardness is measured at ambient temperature. In certain embodiments, the compositions have a hardness of from 35 g-force to 130 g-force (e.g., from 60 g-force to 110 g-force), when the hardness is measured at ambient temperature. The hardness can be measured using a texture analyzer, using a procedure as described below in Example 1. In some embodiments, the hardness is measured after (e.g., 12 or more hours, or 12-24 hours after) forming a molded composition (e.g., via hot-pouring techniques) and can range from 60 g-force to 130 g-force, when measured at ambient temperature. In certain embodiments, the hardness is measured after performing a series of stability measurements at a variety of temperatures (e.g., 5° C., 10° C., 25° C., and 45° C.) on the molded composition; where the hardness can range from 35 g-force to 130 g-force, when measured at ambient temperature. As used herein, “ambient temperature” refers to a temperature of from 20 to 30° C.
In some embodiments, the compositions of the present disclosure can be used to remove makeup and/or dirt and can provide excellent cleansing ability. When cleansing with the compositions, the compositions can be used alone, manually, or with an implement or electronic device on wet or dry skin. In some embodiments, the compositions can be removed through emulsification with water or by wiping the compositions from the skin with a dry or wet substrate. When applied either manually or using an electronic device to a skin portion, the compositions can undergo a solid to cream (e.g., a creamy oil) transition over a period spanning from an initial application up to, but not limited to 5 minutes, at ambient temperature. As used herein, “cream” refers to a composition having a high viscosity that is softer than the solid and that is spreadable at ambient temperature.
The semi-solid or solid non-Newtonian composition according to the disclosure may be prepared according to techniques that are well known to those skilled in the art.
The semi-solid or solid non-Newtonian composition may be packaged in a pot, a tub, a tube or a unit dose package.
Unitary Package
Referring to
Method
Although the foregoing refers to various exemplary embodiments, it will be understood that the disclosure is not so limited. It will occur to those of ordinary skill in the art that various modifications may be made to the disclosed embodiments and that such modifications are intended to be within the scope of the disclosure. Where an embodiment employing a particular structure and/or configuration is illustrated in the present disclosure, it is understood that the present disclosure may be practiced with any other compatible structures and/or configurations that are functionally equivalent provided that such substitutions are not explicitly forbidden or otherwise known to be impossible to one of ordinary skill in the art.
