Shaving aid composition containing natural anti-abrasive agents - Patent Application 20070229633

Abstract

The shaving aid composition includes a soap base, such as an extruded or poured soap base, and a natural anti-wear agent selected from one or more polysaccharides. The one or more polysaccharides may include, for example, algae extracts, seed extracts, plant exudates, microbial exudates, fruit extracts, animal-derived gelling agents, or combinations thereof. As an example, the one or more polysaccharides may include agar, xanthan gum, or combinations thereof. Furthermore, the shaving aid composition may be substantially anhydrous and solid. Furthermore, the shaving aid composition may be incorporated into a razor. For example, the shaving aid composition may be incorporated into a razor as a shaving aid body, shaving aid strip, or the like, located on, in, or adjacent to the razor cartridge of the razor.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to U.S. Provisional Application No. 63 / 210,233, filed June 14, 2021, the contents of which are incorporated by reference in their entirety herein. Technical Field DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment relates to a shaving aid composition that includes a soap base and a natural anti-wear agent, which provides high abrasion resistance in the shaving aid composition. [Background technology]

[0002] background Technologies are available to improve shaving experience. For example, shaving gels may use relatively large amounts of gelling agents (e.g., >20% by weight) and may coexist with relatively large amounts of water to form a gel. However, shaving gels may improve lubricity at the expense of convenience. Alternatively, a shaving aid composition may be located on the razor to improve lubricity, smoothness, etc. The shaving aid composition may have a relatively low water content and a relatively high soap content. However, such shaving aid compositions wear over time with repeated use. Synthetic lubricant polymers such as polyethylene oxide (PEO) have been proposed for wear, but may work at the expense of shaving performance (e.g., stringiness). Silicone polymers, on the other hand, may raise concerns about sustainability. Moreover, semi-solid esters may not be as effective by themselves in the absence of PEO or silicone polymers. Thus, there is considerable room for improvement to provide shaving aid compositions with good shaving performance and sustainable and / or natural anti-wear agents. Summary of the Invention

[0003] summary An embodiment relates to a shaving aid composition comprising a soap base and a natural anti-wear agent selected from polysaccharides, such as one or more polymerized carbohydrates made up of monosaccharide units linked together by glycosidic bonds. The soap base may be, for example, C 12 -C 22 Examples of the soap base include fatty acids, salts thereof, or combinations thereof. For example, the soap base includes lauric acid, myristic acid, palmitic acid, stearic acid, linoleic acid, salts thereof, or combinations thereof. Examples of the salt include sodium salts, potassium salts, lower alkanolamine salts, or combinations thereof. In any of the foregoing embodiments, the soap base may include additives such as, but not limited to, skin care ingredients, surfactants, skin conditioning agents, absorbents, colorants, fragrances, or combinations thereof. In any of the foregoing embodiments, the soap base may be selected from an extruded soap base or a poured soap base, however, the soap base may be manufactured by any conventional process known in the art without departing from the broader aspects of the present invention. In any of the foregoing embodiments, the soap base may be present in an amount of about 50.0% to about 99.5% by weight, based on the total weight of the shaving aid composition. For example, the soap base may be present in an amount of about 75.0% to about 99.5% by weight, based on the total weight of the shaving aid composition. In any of the above embodiments, the polysaccharide may be selected from an algae extract, a seed extract, a botanical exudate, a microbial exudate, a fruit extract, an animal-derived gelling agent, or a combination thereof. As an example, the polysaccharide may include agar, and the soap base may be selected from an extruded soap base or a poured soap base. Furthermore, the polysaccharide may purposely exclude guar gum, gum arabic, locust bean gum, and / or xanthan gum. In another example, the polysaccharide may include xanthan gum, and the soap base may be selected from a poured soap base. Furthermore, the shaving aid composition may exclude synthetic lubricant polymers.

[0004] In any of the foregoing embodiments, the individual polysaccharide or combination of polysaccharides may be present in an amount of about 0.25% to about 15.0% by weight, based on the total weight of the shaving aid composition. For example, the individual polysaccharide or combination of polysaccharides may be present in an amount of about 0.5% to about 3.0% by weight, based on the total weight of the shaving aid composition. In any of the foregoing embodiments, the shaving aid composition may be substantially anhydrous, hydrous, and / or solid. For example, the shaving aid composition may contain less than 20.0% water by weight, based on the total weight of the shaving aid composition, as a substantially anhydrous shaving aid composition. For example, the shaving aid composition may contain about 15.0% water by weight or less. However, the shaving aid composition may contain more than 20.0% water by weight, based on the total weight of the shaving aid composition, as a substantially hydrous shaving aid composition. Additionally or alternatively, the shaving aid composition may be an assembly of atoms or molecules held together such that, under certain drying conditions, the shaving aid composition maintains a defined shape and / or size as a substantially solid shaving aid composition.

[0005] The embodiments further relate to a razor comprising a shaving aid composition according to any of the previous embodiments. The shaving aid composition may be incorporated into the razor, for example, as a shaving aid mounted on or adjacent to a razor cartridge of the razor. The shaving aid composition may be incorporated into the razor as a shaving aid strip mounted in or on a razor cartridge of the razor. However, the shaving aid composition may be incorporated into a razor in other forms or configurations known in the art without departing from the broader aspects of this invention. Embodiments further relate to a method of making the shaving aid composition of any of the previous embodiments. For example, the method may include selecting the soap base, selecting the natural anti-wear agent, and combining the soap base and the anti-wear agent to form the shaving aid composition. Thus, for example, the method may include selecting an extruded soap base or a poured soap base. The method may further include selecting the polysaccharide based on the selected soap base. Additionally or alternatively, the method may include selecting the polysaccharide based on its stability at a particular condition, such as the final pH value of the shaving aid composition.

[0023] Embodiments further relate to methods of using the shaving aid composition of any of the previous embodiments. For example, the method of using the shaving aid composition may include contacting the shaving aid composition with a solvent (e.g., water) to activate the shaving aid composition (e.g., to cause lubrication, etc.). The method may include contacting the shaving aid composition with a keratinous surface or a bristle surface to cause abrasion that may activate or aid in the activation of the shaving aid composition. The features of the present disclosure which are believed to be novel and the elements characteristic of the invention are set forth with particularity in the appended claims. The figures are for illustrative purposes only and are not drawn to scale. However, the disclosure itself, both as to organization and method of operation, can best be understood by reference to the following description of the preferred embodiment in connection with the accompanying drawings, in which: [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a side view of a shaving aid composition incorporated into a razor as a shaving aid on or adjacent to a razor cartridge according to an embodiment. [Diagram 2] FIG. 2 is a perspective view of a replacement cartridge including a shaving aid formed from a shaving aid composition according to an embodiment. [Diagram 3]FIG. 3 is a perspective view of a replacement cartridge including shaving aid bodies and shaving aid strips formed from a shaving aid composition according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Detailed Description The embodiments can include, consist of, and consist essentially of the features and / or steps described herein, as well as additional or optional ingredients, components, steps, or features described herein, or as would be otherwise understood by one of ordinary skill in the art. It is also understood that all concentrations disclosed herein are by weight percent (wt%) based on the total weight of the composition, unless otherwise specified. Where appropriate, the International Nomenclature of Cosmetic Ingredients (INCI) name of the ingredient / component is provided. In this regard, the term "(and)" is the INCI designation for the mixture of the listed components separated by this term. Any numerical ranges recited herein are intended to include all subranges subsumed therein, and such ranges are understood to include all numbers and / or fractions between the lower and upper limits of the recited range. Additionally, the term "about" may mean a deviation of ±20%, unless otherwise specified. The embodiments relate to a shaving aid composition and a razor having said shaving aid composition. The shaving aid composition preferably comprises a soap base and an effective amount of one or more polysaccharides to enhance the wear resistance of the soap base and / or the shaving aid composition. In particular, the wear resistance of the shaving aid composition may affect the useful life of a razor cartridge. The surprising effect of certain natural and / or biodegradable polysaccharides in enhancing the wear resistance provides additional sustainability benefits without sacrificing shaving performance. For example, a shaving aid composition having a soap base and one or more polysaccharide anti-wear agents may provide equivalent or better shaving performance compared to commercially available shaving aid compositions. The shaving aid composition may also provide sustainability benefits compared to the prior art, such as, without limitation, replacement and / or razor cartridge life, naturalness of soap, and biodegradability of soap.

[0008] Razor The shaving aid composition is erodible and has the ability to wear away due to the flow of water or as a result of abrasion. In an embodiment, the shaving aid composition may be incorporated into a razor as a shaving aid. A typical example of a shaving aid can be found in the commercialized products sold under the trade name SCHICK®. Various types of shaving aids are also described in U.S. Patent Application Publication Nos. 2005 / 0011073 and 2005 / 0015990, which are incorporated herein in their entirety. As shown in FIGS. 1-2, a replacement cartridge 10 for use in a razor 11 includes a shaving aid body 12. The shaving aid body 12 is an erodible solid of shaving aid materials selected to suit the application at hand. Soap bases are particularly suited for wet shaving applications and may include shaving aid materials (e.g., soap, lubricants, drag reducers, depilatories, cleaning agents, medicinal agents, sensates, skin irritants, etc.). As shown, the shaving aid body 12 has a front portion 16, a rear portion 18, a first side portion 20, and a second side portion 22, all of which are arranged around a centrally located opening 24 sized to receive a razor cartridge 26. The shaving aid body portions 16, 18, 20, 22 extend from a contact surface 30 to a base surface 32. During a shaving operation, the contact surface 30 contacts a hirsute surface and the cutting edges of the razor cartridge 26 engage the hirsute surface. In the illustrated embodiment, the shaving aid body 12 is oval-shaped, however, other shapes of the shaving aid body 12, e.g., circular, rectangular, or substantially any other geometric shape, or structural configuration of the razor 11, may be substituted without departing from the broader aspects of the present invention. For example, the shaving aid body 12 may take on alternative shapes and / or include multiple parts, e.g., the above-mentioned portions of the shaving aid body 12 may be separate from one another. Similarly, while the opening 24 is located on the contact surface 30, the opening 24 may instead be formed by multiple shaving aid parts 16, 18, 20, 22 arranged relative to one another to form a centrally located opening 24. Furthermore, the opening 24 may not extend between the surfaces 30 and 32. In such a case, a second opening may be included extending between the base surface 32 and the opening 24, and having the same or a different cross-sectional shape as the opening 24.

[0009] As shown in FIGS. 1-2, the shaving aid body 12 is coupled to a base 34. Some embodiments of the base 34 include a plurality of tabs 36 extending laterally from the base 34. The tabs 36 are used to position the replacement cartridge 10 within the packaging. In one embodiment, the base 34 is integrally formed with the shaving aid body 12. The term "integrally formed" may refer to a base 34 that is made of one or more shaving aid materials or components thereof and is formed at least in part at the same time as the shaving aid body 12. The portion of the shaving aid material that forms the base 34 is either inherently or processed to have sufficient mechanical strength to be operable to attach the replacement cartridge 10 to the razor 11. The appropriate process (e.g., curing, compression, etc.) used to create sufficient mechanical strength in the integral base 14 will depend on the shaving aid material. As shown in FIG. 3, the shaving aid composition is incorporated into the razor 38 as a shaving aid strip 40 attached on or adjacent to the razor cartridge 42 in addition to or as an alternative to a shaving aid body 44. The shaving aid strip 40 may be provided in any desired shape, location, size, proportion, etc., or combination thereof. A typical example of a shaving aid strip is found in the commercialized product sold under the trademark SCHICK®. Various types of shaving aid strips are also described in U.S. Patent Application Publication No. 2017 / 0216442, which is incorporated herein in its entirety. In one embodiment, the shaving aid composition can be dispersed in a matrix of water-insoluble material (e.g., a styrenic polymer, an olefinic polymer, a biodegradable polymer, or a combination thereof) to form a shaving aid strip that can be mounted in or on the razor cartridge 42 adjacent one or more cutting edges. A shaving aid composition comprising a soap base and one or more polysaccharides can optionally or preferably exclude a matrix of water-insoluble material to form a shaving aid strip that can be mounted in or on the razor cartridge. In either case, a shaving aid composition comprising a soap base and one or more polysaccharide anti-wear agents provides good shaving performance (e.g., lubricity, slipperiness, etc.) when exposed to water or abrasion during shaving.

[0010] Soap Base The soap base may be derived from vegetable oils or tallow which have been saponified or neutralized to produce salts of glycerol and fatty acids (e.g., sodium salts of carboxylic acids having up to about 22 carbon atoms) used in the soap base. High fat content materials having a portion (e.g., about 25% by weight or more) of coconut acid or other fatty acids may also be used. By way of example, the soap base may be prepared from C 12 -C 22 The soap base preferably comprises fatty acids and / or their salts. For example, the soap base may comprise lauric acid, myristic acid, palmitic acid, stearic acid, linoleic acid, or combinations thereof. The soap base is preferably selected from the group consisting of C 12 -C 22 Salts of fatty acids (e.g., but not limited to, sodium, potassium) and / or lower alkanolamine salts (e.g., triethanolamine (TEA) salts, etc.) may be included, including, but not limited to, sodium stearate, sodium palmitate, sodium cocoate, sodium isostearate, potassium stearate, potassium myristate, potassium palmitate, potassium cocoate, potassium isostearate, TEA-stearic acid, etc., or combinations thereof. 12 -C 22The fatty acid and / or salt thereof may, for example, be present in an amount of 60% or more by weight, such as 65%, 70%, 75%, 80%, 85%, 90%, 95%, 99% by weight, based on the total weight of the shaving aid composition, including all numbers and / or fractions therebetween. However, the soap base may be present in an amount of about 50% to about 99.5% by weight, preferably about 75% to about 99.5% by weight, based on the total weight of the shaving aid composition, including all numbers and / or fractions therebetween, such as 80%, 85%, 90%, 95%, 99% by weight, based on the total weight of the shaving aid composition. The soap base may optionally include various additives, such as, but not limited to, skin care ingredients, surfactants, absorbents, colorants, fragrances, or combinations thereof. The additives may be present in an amount of about 0.001% to about 40.0% by weight, based on the total weight of the shaving aid composition. The additives may be present in an amount of, for example, 0.0008%, 0.1%, 0.4%, 1%, 2%, 3%, 4%, 5%, 10%, 15%, 20%, 25%, 30%, 40%, 44% by weight, based on the total weight of the shaving aid composition, including all numbers and / or fractions therebetween.

[0011] Skin care ingredients include, but are not limited to, skin benefit agents (e.g., emollients, lubricants, humectants, moisturizers, conditioners, etc.), anti-acne agents, anti-aging agents, cleansing agents, foaming agents, hair growth inhibitors, botanical extracts, antioxidants, anti-bacterial agents, anti-inflammatory agents, astringents, anti-irritants, depilatories, pharmaceuticals, exfoliants (e.g., loofah, seaweed, oatmeal, pumice, apricot seeds, etc.), or combinations thereof. Skin benefit agents include, but are not limited to, aloe barbadensis, dimethicone, allantoin, sucrose cocoate, oleyl lanolinate, thiourea, cocoa butter, tocopherol acetate, PPG-33, undeceth-3, honey, algae, or combinations thereof. Further embodiments of skin benefit agents include glycerin, glycols (e.g., propylene glycol, etc.), fatty alcohols (e.g., C 12 -C 25Examples of skin care ingredients include, but are not limited to, sodium or potassium salts (e.g., lactates, chlorides, sulfonates, etc.), vitamins and vitamin complexes, coconut fatty acids, metal oxides, oils (e.g., cocoa butter), aloe vera, extracts (e.g., plants, fruits, legumes, etc.), or combinations thereof. By way of example, such skin care ingredients may be present in an amount of up to 10% by weight, preferably up to 5% by weight, and more preferably up to 3% by weight, based on the total weight of the shaving aid composition.

[0012] Surfactants include, but are not limited to, sodium isostearoyl lactylate, ammonium isostearate, DEA-myristate, alkyl glyceryl sulfonate, laureth-16, or combinations thereof. By way of example, the surfactant may be present in an amount of up to 9% by weight, preferably up to 7.5% by weight, and more preferably up to 6% by weight, based on the total weight of the shaving aid composition. Absorbents include, but are not limited to, clay or clay-based compositions, chalk, talc, silica, or combinations thereof. Clays that may be added include, but are not limited to, bentonite, kaolin, or combinations thereof. By way of example, the absorbents may be present in an amount of up to about 9% by weight, preferably up to about 5% by weight, and more preferably up to about 3% by weight, based on the total weight of the shaving aid composition. The embodiment may be suitable for users whose skin is not sensitive to the dyes or pigments used as colorants. Thus, the shaving aid composition may include, but is not limited to, colorants such as titanium dioxide, manganese violet, zinc oxide, ultramarine (e.g., ultramarine blue 4), orange 4, green 3, or combinations thereof. As an example, the colorant is present in an amount of up to 6% by weight, preferably up to 4% by weight, and more preferably up to 1% by weight, based on the total weight of the shaving aid composition. A fragrance may also be added, which acts as an odorant used to impart a desirable scent to the composition and can further mask less desirable odors of other components of the composition. In an embodiment that may be suitable for users whose skin is not sensitive to fragrances, the shaving aid composition may further include a fragrance in an amount of up to 2% by weight, preferably up to 1.5% by weight, and more preferably up to about 1% by weight, based on the total weight of the shaving aid composition.

[0013] Preferably, the soap base is an extruded soap base or a poured soap base. Forming an extruded soap base includes using a crutching process to incorporate various ingredients as a second phase for addition to the saponification or neutralization product. After the crutching process, a drying process is employed to remove at least a portion of the water. The resulting dried material can then be pelletized and subjected to a fusion process, and additional ingredients can be added to produce a pelletized composition. The pelletized composition can then be refined and extruded to form an extruded shaving aid composition from the extruded soap base, which can then be further processed into a final desired shape. On the other hand, the preparation of a pourable soap base may involve reacting triglycerides in tallow or vegetable fat with a base to produce a saponified or neutralized soap product (e.g., fatty acid salts) and glycerol, and optionally removing some of the water. The resulting product may be refined as necessary, and additional ingredients may be mixed with the product, or the product may be solidified without the additional ingredients, although the solidified soap without the additional ingredients may later be remelted and mixed with the additional ingredients. In either case, the mixed molten soap base may be poured into a mold and cooled to form a molded shaving aid composition. In particular, the above process is a non-limiting example of a conventional method, and therefore one or more aspects of the above method can be easily substituted without departing from the broader aspects of the present invention. For example, the preparation of a poured soap base can be achieved by dissolving the corresponding fatty salt and additional ingredients in any type of mixture of water, glycerin and / or propylene glycol. In particular, extruded soap bases and poured soap bases are readily commercially available for use in the embodiments.

[0014] The molded and / or extruded shaving aid composition may contain less than 20.0% by weight of water as a substantially anhydrous shaving aid composition, based on the total weight of the shaving aid composition. In this regard, one or more components of the shaving aid composition may be accompanied by absorbed and / or adsorbed water that may otherwise be carried into the substantially anhydrous shaving aid composition. For economic, procurement, and / or formulation reasons, it may be disadvantageous to process hygroscopic materials to be completely free of water. In addition, water that may have been intentionally added may be removed to provide a substantially anhydrous shaving aid composition. Thus, for example, the shaving aid composition may contain a total of about 10% by weight or less of water. However, it is understood that the molded and / or extruded shaving aid composition may be a substantially water-containing shaving aid composition. For example, a ready-made, commercially available pourable soap base may have a water content of up to about 40% by weight, while a custom-made, special-purpose pourable soap base may have a higher or lower water content. On the other hand, the formation of the molded and / or extruded shaving aid composition may also affect the final water content. Thus, there may be less water present in the molded and / or extruded shaving aid composition compared to the pre-treated state (by one or more raw materials), with water still remaining in an amount of more than 20.0% by weight, based on the total weight of the shaving aid composition, providing a substantially water-containing composition. Additionally or alternatively, the shaving aid composition may be a collection of atoms or molecules held together such that under certain drying conditions, the shaving aid composition maintains a defined shape and size as a substantially solid shaving aid composition. It is understood that in many end uses, the shaving aid composition may be exposed to water as part of its designed function, for example, in a shaving aid that functions as a lubricating element when exposed to water during shaving. Thus, the shaving aid composition of a razor may be substantially anhydrous, hydrous, and / or solid before shaving or before being solubilized during shaving.

[0015] Natural anti-wear agent The natural anti-wear agent may be selected from one or more polysaccharides. Without being bound by any theory, it is believed that one or more water-soluble, natural, relatively safe, and / or biodegradable gel-building and viscosity-increasing polysaccharides can combine with water in the shaving aid composition having an extruded or melted soap base while building a flexible network that significantly improves the anti-wear properties. Thus, a longer-lasting soap can be provided using natural ingredients to increase sustainability. In this regard, the shaving aid composition does not require and can intentionally exclude synthetic lubricant polymers such as polyvinylpyrrolidone (PVP), polyethylene oxide (PEO), PVP / vinyl alcohol copolymers, vinyl acetate polymers and copolymers, polyacrylamide, etc. This technical solution is particularly useful when incorporating a long-lasting soap into a replacement cartridge that functions as a lubricating and / or gliding element. In embodiments, the polysaccharide may be selected from algae extracts, seed extracts, plant exudates, microbial exudates, fruit extracts, gelling agents of animal origin, or combinations thereof. Algae extracts include, but are not limited to, agar, carrageenan, alginates, or combinations thereof. Seed extracts include, but are not limited to, carob gum, guar gum, locust bean gum, or combinations thereof. Plant exudates include, but are not limited to, gum arabic, konjac gum, karaya gum, tragacanth gum, ghatti gum, starch, or combinations thereof. Microbial exudates include, but are not limited to, xanthan gum, cellulose or its derivatives (e.g., carboxymethylcellulose, hydroxypropylcellulose, methylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose, cellulose modified by grafting alkyl groups, etc.), pullulan, or combinations thereof. Fruit extracts include, but are not limited to, pectin, etc. Animal derived gelling agents include, but are not limited to, gelatin, caseinates, or combinations thereof, etc. Thus, the shaving aid composition may include agar, carrageenan, alginates, locust bean gum, guar gum, locust bean gum, gum arabic, konjac gum, karaya gum, tragacanth gum, ghatti gum, xanthan gum, starch, cellulose or its derivatives, pectin, gelatin, and / or caseinates, etc.

[0016] The polysaccharides may be preferably selected based on their stability or properties at particular conditions, such as the final pH value of the shaving aid composition. For example, xanthan gum exhibits gel stability over a wide range of pH values ​​(e.g., 1-13), whereas pectin degrades rapidly at alkaline pH values ​​at room temperature. Additionally or alternatively, the polysaccharides may be selected based on the process used to manufacture the soap base. As an example, when the soap base is an extruded soap base, the polysaccharides used may include agar, etc. In another example, when the soap base is a poured soap base, the polysaccharides used may include agar, xanthan gum, or combinations thereof. Additionally, the shaving aid composition may purposely exclude guar gum, gum arabic, locust bean gum, xanthan gum, or combinations thereof. For example, when the soap base in the shaving aid composition is an extruded soap base, the shaving aid composition may purposely exclude one or more of the aforementioned polysaccharides. The natural anti-wear agent may be present in an amount of about 0.25% to about 15.0% by weight based on the total weight of the shaving aid composition. The total concentration of polysaccharides present in the shaving aid composition may be, for example, 0.5% to 8.0% by weight, such as 1.0% to 3.0% by weight based on the total weight of the shaving aid composition, including all numbers and / or fractions therebetween. In particular, mixtures of polysaccharides may be more effective at lower concentrations. Such an effective amount of polysaccharide, when combined with a soap base present in an amount of about 50% to about 99.5% by weight, preferably about 75% to about 99.5% by weight (including all numbers and / or fractions therebetween), based on the total weight of the shaving aid composition, may result in a viscous gel upon contact with water that is substantially more viscous than conventional water / soap solutions, the polysaccharide may function as a binding additive, the polysaccharide may bind excess water in the soap bar, and / or the polysaccharide may affect or stabilize the liquid phase of the soap bar. EXAMPLES

[0017] Shaving Aid Composition Examples Table 1 in the examples shows a shaving aid composition comprising a soap base and a natural anti-wear agent selected from polysaccharides. The soap base may be an extruded soap base, which is combined with one or more polysaccharides in the extruded shaving aid composition. The extruded soap base may include, for example, sodium palmitate, sodium cocoate, sodium isostearate, isostearic acid, water, potassium palmitate, glycerin, sodium isostearoyl lactylate, potassium cocoate, potassium isostearate, sucrose cocoate, sodium chloride, polyethylene glycol (PEG)-50 shea butter, tocopherol acetate, pentasodium pentetate, and / or tetrasodium etidronate. The soap base may also be a pourable soap base combined with one or more polysaccharides in a pourable shaving aid composition. The pourable soap base (melt and pour soap) may include a commercially available soap base or a special soap base. [Table 1] Various extruded and poured shaving aid compositions containing ingredients at the corresponding approximate (±20%) concentrations shown in Table 1 were evaluated for abrasion resistance. The shaving aid compositions were in the form of shaving aid bodies. Abrasion resistance was measured by maintaining a flow of water over a textured surface and between the textured surface and the shaving aid in a water bath at a preselected temperature and abrading the shaving aid to simulate a shaving process. The flow of water through the water bath may be about 0.08 gallons per minute (gpm) and the temperature of the water may be about 38°C to about 42°C. Abrasion of the shaving aid body is affected by a device that provides engagement of the shaving aid body with the textured surface and movement of the shaving aid body across the textured surface in an oscillatory motion. The textured surface is preferably a stainless steel pad having a surface finish number of 32 microinches (Ra) (about 150 grit). Each successive movement (back and forth) of the shaving aid body over the textured surface is one cycle. One complete cycle is about 6 inches of movement in each direction (back and forth). A weight is used to maintain a load of 300 grams (g) on ​​the shaving aid. Typically, the wear rate of the shaving aid is about 0.002 to about 0.040 millimeters per cycle (mm / cycle), preferably about 0.002 to about 0.030 mm / cycle, and more preferably about 0.002 to about 0.018 mm / cycle.

[0018] Table 2 in the Examples shows the results of various extruded shaving aid compositions evaluated for abrasion. Examples 1A-1B are the same control samples evaluated in duplicate. The control samples consisted only of the commercially available extruded soap base and showed abrasion values ​​of 0.0074 and 0.0088, respectively. Notably, and surprisingly, agar was the only natural anti-abrasion agent tested in the extruded soap base that showed a significant improvement in abrasion resistance at both the lower and upper end of the concentration range evaluated (Examples 2A-2D). Interestingly, there was a positive trend in abrasion resistance as the concentration of agar in the extruded shaving aid composition decreased. However, other polysaccharides did not perform as well for abrasion in the concentration range evaluated. Of these, only the extruded shaving aid composition with locust bean gum showed an improvement in abrasion at the upper end of the concentration range (Example 5B). [Table 2]

[0019] Table 3 in the Examples shows the results of evaluating wear for various pour-on shaving aid compositions. Examples 7 and 10 are two different control samples consisting of pour-on soap base only (the latter being a commercially available melt-on and pour-on soap base). The control samples showed wear values ​​of 0.0187 and 0.0026, respectively. In particular, it was surprising to find that agar and xanthan gum were natural anti-wear agents that significantly improved wear in melt-on and pour-on soap bases that had relatively low initial wear values ​​(Examples 8-9). Interestingly, the pour-on shaving aid composition containing agar showed significantly improved wear, considering the traditional difficulties in improving wear and considering the relatively high initial wear values ​​of pour-on soap bases (Example 11). [Table 3]

[0020] Thus, the wear improvements of the embodiments are at least comparable to, and advantageously superior to, conventional techniques that attempt to address soap wear. Additionally, or alternatively, the technical solutions discussed herein provide additional sustainability benefits (e.g., naturalness, biodegradability, cartridge life, etc.) that are not matched by conventional techniques that attempt to address soap wear.

[0021] Further Description and Examples Additional examples include the shaving aid composition, consumer products that include the shaving aid composition, such as razors, methods of making the shaving aid composition, and / or methods of using the shaving aid composition. Example 1 includes a shaving aid composition that includes a soap base and a natural anti-abrasive agent selected from one or more polysaccharides. Example 2 includes the shaving aid composition of Example 1, and the soap base is C 12 -C 22 The fatty acid may be a fatty acid, a salt thereof, or a combination thereof. Example 3 includes the shaving aid composition of any of Examples 1-2, wherein the soap base includes lauric acid, myristic acid, palmitic acid, stearic acid, linoleic acid, salts thereof, or combinations thereof. Example 4 includes the shaving aid composition of any of Examples 1-3, wherein the soap base is present in an amount of about 75.0% to about 99.5% by weight, based on the total weight of the shaving aid composition. Example 5 includes the shaving aid composition of any of Examples 1-4, wherein the soap base is selected from one of an extruded soap base or a poured soap base. Example 6 includes the shaving aid composition of any of Examples 1-5, wherein the one or more polysaccharides are selected from an algae extract, a seed extract, a plant exudate, a microbial exudate, a fruit extract, an animal-derived gelling agent, or a combination thereof. Example 7 includes the shaving aid composition of any of Examples 1-6, wherein the one or more polysaccharides include agar, and the soap base is selected from the group consisting of an extruded soap base and a poured soap base. Example 8 includes the shaving aid composition of any of Examples 1-7, wherein the one or more polysaccharides include agar, the polysaccharides intentionally exclude guar gum, gum arabic, locust bean gum, or xanthan gum, and the soap base is selected from the group consisting of an extruded soap base and a poured soap base. Example 9 includes the shaving aid composition of any of Examples 1-8, wherein the one or more polysaccharides comprises xanthan gum and the soap base is selected from the group consisting of pourable soap bases. Example 10 includes the shaving aid composition of any of Examples 1-9, wherein the one or more polysaccharides are present in an amount of about 0.25% to about 15.0% by weight, based on the total weight of the shaving aid composition. Example 11 includes the shaving aid composition of any of Examples 1-10, wherein the one or more polysaccharides are present in an amount of about 0.5% to about 3.0% by weight, based on the total weight of the shaving aid composition. Example 12 includes the shaving aid composition of any of Examples 1-11, where the shaving aid composition purposefully excludes a synthetic lubricant polymer. Example 13 includes the shaving aid composition of any of Examples 1-12, wherein the shaving aid composition is substantially anhydrous and solid. Example 14 includes the shaving aid composition of any of Examples 1-13, wherein the shaving aid composition is in the form of a shaving aid body, a shaving aid strip, or a combination thereof. Example 15 includes the shaving aid composition of any of Examples 1 to 14, and further includes one or more of a skin softener, a lubricant, a humectant, a moisturizer, a conditioner, a surfactant, an emulsifier, a film former, a sunscreen active, an anti-aging active, an insect repellent, an amino acid, a colorant, a pigment, a dye, an opacifying agent, a pH adjuster, a fragrance, a filler, a vitamin and its derivatives, a preservative, a preservative accelerator, a chelating agent, a dispersing agent, a stabilizer, a sphingolipid, an antioxidant, a mineral, a keratolytic agent, a phosphatase ... The compositions may further comprise an active ingredient selected from the group consisting of ruminal compounds, analgesics, anti-allergy agents, H1 or H2 antihistamines, anti-inflammatory agents, anti-irritants, anti-tumor agents, immune system enhancers, immune system suppressants, anti-acne agents, cleansing agents, anesthetics, preservatives, skin cooling compounds, skin protectants, skin penetration enhancers, exfoliants, dyes, antibacterial agents, absorbents, foaming agents, hair growth promoters, depilatories, bleaching agents, pigmentation inhibitors, pharmaceuticals, spherical powders, extracts, alpha and beta hydroxy acids, retinol and its derivatives, or combinations thereof. Example 16 includes a razor or the like comprising the shaving aid composition of any one of Examples 1-15. Example 17 includes the razor of any of Examples 1-16, wherein the shaving aid composition is incorporated into the razor as a shaving aid mounted on or adjacent to the razor cartridge of the razor. Example 18 includes the razor of any of Examples 1-17, wherein the shaving aid composition is incorporated into the razor as a shaving aid strip mounted on or adjacent to a razor cartridge of the razor. Example 19 includes a method of making the shaving aid composition of any of Examples 1-15, comprising selecting a soap base, selecting a natural anti-wear agent selected from one or more polysaccharides, and combining the soap base and the natural anti-wear agent to form the shaving aid composition. Example 20 includes any of the methods of Examples 1 to 19, and the soap base is selected from extruded soap bases. Example 21 includes any of the methods of Examples 1 to 19, and the soap base is selected from pourable soap bases. Example 22 includes a method of using the shaving aid composition of any of Examples 1-21, comprising contacting the shaving aid composition with one or more solvents to activate the shaving aid composition or a keratinous surface and / or a bristle surface, and causing abrasion to activate or assist in activation of the shaving aid composition.

[0022] In this disclosure and in the claims that follow, the word "or" refers to an inclusive list, for example, a list of X, Y, or Z means X or Y or Z or XY or XZ or YZ or XYZ. Similarly, a list of one or more of X, Y, or Z, or a list of X, Y, Z, or a combination thereof means X or Y or Z or XY or XZ or YZ or XYZ. Furthermore, the expression "based on" is not used to indicate a closed set of conditions. For example, a process described as "based on condition A" may be based on both condition A and condition B. In other words, the expression "based on" should be interpreted as meaning "based at least in part on". Furthermore, the word "a" or "an" refers to "at least one".

[0023] While the present disclosure has been particularly described in connection with certain preferred embodiments, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. It is therefore contemplated that the appended claims will encompass any such alternatives, modifications, and variations that fall within the true scope and spirit of the present disclosure.

Claims

**Claim 1**: A shaving aid composition comprising a soap base; and a natural anti-wear agent selected from one or more polysaccharides, wherein the soap base is selected from one of an extruded soap base or a poured soap base, the shaving aid composition. **Claim 2** wherein the soap base is C 12 -C 22 The shaving aid composition according to claim 1, comprising a fatty acid, a salt thereof, or a combination thereof. **Claim 3** The shaving aid composition according to claim 2, wherein the soap base comprises lauric acid, myristic acid, palmitic acid, stearic acid, linolenic acid, salts thereof, or combinations thereof. **Claim 4** The shaving aid composition according to claim 1, wherein the soap base is present in an amount of about 75.0% to about 99.5% by weight based on the total weight of the shaving aid composition. **Claim 5** The shaving aid composition according to claim 1, wherein the one or more polysaccharides are selected from algal extracts, seed extracts, plant infusions, microbial infusions, fruit extracts, animal-derived gelling agents, or combinations thereof. **Claim 6** The shaving aid composition according to claim 1, wherein the one or more polysaccharides comprise agar, and the soap base is selected from the group consisting of an extruded soap base and a poured soap base. **Claim 7** The shaving aid composition according to claim 1, wherein the one or more polysaccharides comprise agar, the polysaccharides are intentionally excluded from guar gum, gum arabic, locust bean gum, or xanthan gum, and the soap base is selected from the group consisting of an extruded soap base and a poured soap base. **Claim 8** The shaving aid composition according to claim 1, wherein the one or more polysaccharides comprise xanthan gum, and the soap base is selected from the group consisting of a poured soap base. **Claim 9** The shaving aid composition according to claim 1, wherein the one or more polysaccharides are present in an amount of about 0.25% to about 15.0% by weight, preferably about 0.5% to about 3.0% by weight based on the total weight of the shaving aid composition. **Claim 10** The shaving aid composition according to claim 1, wherein the shaving aid composition intentionally excludes synthetic lubricant polymers. **Claim 11** The shaving aid composition according to claim 1, wherein the shaving aid composition is substantially anhydrous and solid. **Claim 12** The shaving aid composition according to claim 1, wherein the shaving aid composition is in the form of a shaving aid body, a shaving aid strip, or a combination thereof. **Claim 13** The shaving aid composition according to claim 1, further comprising one or more skin softeners, lubricants, wetting agents, humectants, conditioners, surfactants, emulsifiers, film formers, sunscreen agents, anti-aging agents, insect repellents, amino acids, colorants, pigments, dyes, opacifying agents, pH adjusters, fragrances, fillers, vitamins and their derivatives, preservatives, preservative accelerators, chelating agents, dispersants, stabilizers, sphingolipids, antioxidants, minerals, keratolytic agents, hormonal compounds, analgesics, anti-allergic agents, H1 or H2 antihistamines, anti-inflammatory agents, anti-irritants, anti-tumor agents, immune system enhancers, immune system suppressants, anti-acne agents, detergents, anesthetics, preservatives, skin cooling compounds, skin protectants, skin penetration enhancers, keratolytic agents, dyes, antibacterial agents, absorbents, foaming agents, hair growth inhibitors, depilatory agents, depigmenting agents, pigmentation inhibitors, pharmaceuticals, spherical powders, extracts, alpha and beta hydroxy acids, retinol and its derivatives, or combinations thereof.

14. A safety razor comprising the shaving aid composition according to claim 1, wherein the shaving aid composition is incorporated into the safety razor as a shaving aid body attached onto or adjacent to a safety razor cartridge of the safety razor.

15. Selecting a soap base; selecting a natural anti-wear agent selected from one or more polysaccharides; and combining the soap base and the natural anti-wear agent to form the shaving aid composition, a method for producing a shaving aid composition, wherein the soap base is selected from an extruded soap base or a poured soap base.

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