Liquid detergent compositions having perfume inclusions
Acrylate polymer shells for perfume encapsulates with high acid values address leakage issues, ensuring stability and performance in surfactant-containing products.
Patent Information
- Application Number
- JP2021543136
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-05-08
- Filing Date
- 2020-03-05
- Publication Date
- 2025-10-15
- Estimated Expiration
- 2040-03-05
AI Technical Summary
Existing perfume encapsulation technologies face issues with capsule instability due to fragrance compounds forming acids, leading to leakage and poor performance, particularly in the presence of surfactants, without constraining perfume formulations.
Using an acrylate polymer shell for perfume encapsulates with an acid number greater than 5.0 mg KOH/g, which reduces leakage and maintains performance even in surfactant-containing compositions.
The acrylate polymer shell provides low leakage rates and improved stability for perfumes with high acid values, suitable for use in cleaning and personal care products.
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Abstract
Description
[Technical Field]
[0001] The present disclosure relates to consumer product compositions containing perfume encapsulates, where the perfume is characterized by a specific acid value. Also disclosed are related methods of making and using such compositions. [Background technology]
[0002] Perfume is often a desirable ingredient in consumer products such as laundry detergents, fabric softeners, and / or hair treatment products such as shampoos or conditioners. Perfume can provide a pleasing aesthetic to the product itself or to surfaces (e.g., fabrics or hair) treated with the product.
[0003] To improve the deposition and / or longevity of perfume, perfume delivery systems can be used. Core-shell encapsulation, in which perfume is encapsulated by a polymer shell, is a commonly used technology in consumer products. The shell material can be selected from any number of polymers or their mixtures. When the shell ruptures, the perfume is released.
[0004] However, the presence of certain fragrance compounds in the core of the encapsulated body can cause capsule instability. For example, WO 2017 / 148504 discloses that certain fragrance compounds, such as those containing aldehyde, acetal, and / or ester functional groups, can form carboxylic acids in the presence of atmospheric oxygen and / or through hydrolysis. The resulting acids may impair the quality of the capsule wall and may cause fragrance leakage from the encapsulated body. To address this issue, WO 2017 / 148504 discloses that the selection of certain fragrance compositions, specifically those characterized by an acid value of 5 mg KOH / g or less (preferably determined according to DIN EN ISO 660:2009-10) immediately before encapsulation, can improve capsule performance.
[0005] To obtain a fragrance composition or fragrance mixture with an acid number of 5 mg KOH / g or less, formulators may need to limit the amounts of certain ingredients, such as those containing aldehydes, acetals, and / or esters, although these ingredients may be desirable to provide a particular fragrance experience to the consumer. Summary of the Invention [Problem to be solved by the invention]
[0006] It would be desirable to provide perfume encapsulates and related consumer products that provide acceptable freshness benefits and / or reduce encapsulate leakage without imposing undue constraints on the formulator to specific perfume formulations. [Means for solving the problem]
[0007] The present disclosure relates to consumer product compositions comprising perfume encapsulates, wherein the perfume is characterized by a particular acid number, and the shell of the encapsulate comprises an acrylate material.
[0008] For example, the present disclosure relates to a consumer product composition comprising an encapsulate having a core and a shell surrounding the core, the core comprising a perfume, the perfume being characterized by an acid number of greater than 5.0 mg KOH / g immediately prior to encapsulation as determined by the acid number determination method described herein, and the shell comprising a polymeric material, the polymeric material comprising an acrylate polymer; and a consumer product adjuvant.
[0009] The present disclosure also relates to a method of treating a surface or article with a consumer product composition according to the present disclosure, the method comprising contacting the surface or article with the consumer product composition, optionally in the presence of water. [Brief explanation of the drawings]
[0010] The drawings herein are illustrative in nature and are not intended to be limiting. [Figure 1] 1 shows a graph of encapsulated perfume retention during storage in detergent products. DETAILED DESCRIPTION OF THE INVENTION
[0011] The present disclosure relates to specific core-shell encapsulations containing perfumes with relatively high acid values, as well as compositions and processes related to such encapsulations. It has been discovered that by selecting a specific shell material, specifically an acrylate material, it is possible to obtain perfume encapsulations with surprisingly low leakage, even when the encapsulation contains perfumes characterized by, for example, an acid value of more than 5.0 mg KOH / g. Surprisingly, it has been discovered that the poor surfactant stability of fragrance capsules is related to the presence of aldehyde fragrances or fragrances with ester groups. Aldehydes tend to form carboxylic acids in the presence of atmospheric oxygen, and esters (and corresponding lactones) can also saponify, thus forming carboxyl groups.
[0012] Without being bound by theory, radical-based capsule formation, particularly when part of this radical-based capsule formation is obtained by polymer formation from an oil phase, as with polyacrylate-based capsules, is less sensitive to perfume materials such as aldehydes and esters, which may typically be prone to being converted into charged acid materials, compared to capsules formed by other formation mechanisms, such as coacervate formation, condensation reaction mechanisms, and / or interfacial polymerization. This less sensitivity is believed to be due to the fact that the acids formed, due to their explicit charge as acids, may more easily interfere with other capsule formation mechanisms and therefore interact with the chemical species intended to make the capsule wall.
[0013] Since encapsulated perfumes having an acid number greater than 5.0 mg KOH / g have been reported to tend to leak and / or provide poor performance in compositions comprising surfactants (such as hair shampoos, liquid detergents, or fabric softeners), the encapsulates of the present disclosure, which tend to have relatively low leakage rates, may be particularly preferred when used in compositions containing surfactants and / or conditioning actives, or in applications involving such materials in aqueous environments, such as during cleaning or other processing operations, e.g., in a washing machine, shower, or bathtub.
[0014] The encapsulations, compositions, and processes of the present disclosure are described in more detail below.
[0015] As used herein, the articles "a" and "an," when used in a claim, are understood to mean one or more of what is claimed or described. As used herein, the terms "include," "includes," and "including" are meant to be open-ended. The compositions of the present disclosure can comprise, consist essentially of, or consist of the components of the present disclosure.
[0016] The terms "substantially free of" or "substantially free from" are sometimes used herein. This means that the indicated material is present in minimal amounts and has not been intentionally added to the composition to form part of the composition, or preferably is not present at analytically detectable concentrations. It is meant to include compositions in which the indicated material is present only as an impurity in one of the other intentionally included materials. The indicated material may be present, if at all, at a concentration of less than 1%, or less than 0.1%, or less than 0.01%, or even 0% by weight of the composition.
[0017] As used herein, "consumer product" means a baby care, personal care, fabric and home care, family care, feminine care, health care, snack and / or beverage product or device that is intended to be used or consumed in the form in which it is sold and not subsequently commercially manufactured or modified. Such products include diapers, bibs, wipes; products and / or related methods for treating hair (human, canine, and / or feline) (including for bleaching, coloring, dyeing, conditioning, shampooing, styling); deodorants and antiperspirants; personal cleansing; cosmetics; skin care, including the application of creams, lotions, and other topically applied products for consumer use; and shaving products, products and / or related methods for treating fabrics, hard surfaces, and any other surface in the fabric and home care field (including air care, auto care, dishwashing, fabric conditioning (soft surfaces)). softening), laundry detergents, wash and rinse additives and / or care, hard surface cleaning and / or treatments, and other cleaning for consumer or commercial use); products and / or methods related to toilet paper, tissue, paper handkerchiefs, and / or paper towels; tampons, feminine napkins; products and / or methods related to oral care, including toothpaste, tooth gel, tooth rinse, denture adhesives, tooth whitening agents; over-the-counter health care products, including, but not limited to, cough and cold medicines, pain relievers, RX medications, pet health and nutritional products, and water purification products.
[0018] As used herein, the term "cleaning composition", unless otherwise specified, includes all-purpose or "heavy-duty" cleaners in granular or powder form, especially cleaning detergents; all-purpose cleaners in liquid, gel, or paste form, especially so-called heavy-duty liquid types; liquid detergents for delicate fabrics; hand dishwashing detergents or light-duty dishwashing detergents, especially high-foaming types; dishwashing detergents (including various tablet, granular, liquid, and rinse aid types for home and commercial use); liquid cleaners and disinfectants (including antibacterial hand wash types, wash bars, mouthwashes, denture cleaners, dentifrices, car or carpet shampoos, bathroom cleaners); hair shampoos and hair rinses; shower gels and foam baths, and metal cleaners; as well as cleaning aids such as bleach additives and "stain sticks" or pre-treatment types, products with substrates such as dryer-added sheets, dry and wet wipes and pads, nonwoven substrates, and sponges; as well as sprays and mists.
[0019] As used herein, the phrase "fabric care composition" includes compositions and formulations designed for fabric treatment. Such compositions include, but are not limited to, laundry cleaning compositions and detergents, fabric softening compositions, fabric strengthening compositions, fabric deodorizing compositions, laundry prewash, laundry pretreatments, laundry additives, spray products, dry cleaning agents or compositions, laundry rinse additives, cleaning additives, post-rinse fabric treatments, ironing aids, unit dose formulations, delayed delivery formulations, detergents contained on or in porous substrates or nonwoven sheets, and other suitable forms that would be apparent to one skilled in the art in light of the teachings herein. Such compositions may be used as laundry pretreatments, laundry post-treatments, or may be added during the rinse or wash cycle of a laundry operation.
[0020] Unless otherwise stated, all ingredient or composition concentrations are in terms of the active portion of that ingredient or composition and are exclusive of impurities, such as residual solvents or by-products, that may be present in commercial sources of such ingredient or composition.
[0021] All temperatures herein are in degrees Celsius (° C.) unless otherwise specified. All measurements herein are made at 20° C. and atmospheric pressure unless otherwise indicated.
[0022] In all embodiments of this disclosure, all percentages are by weight of the total composition unless otherwise specified. All ratios are by weight unless otherwise specified.
[0023] It should be understood that every maximum numerical limitation given throughout this specification includes every lower numerical limitation, as if such lower numerical limitations were expressly written herein. Every minimum numerical limitation given throughout this specification includes every higher numerical limitation, as if such higher numerical limitations were expressly written herein. Every numerical range given throughout this specification includes every narrower numerical range that falls within such broader numerical range, as if such narrower numerical ranges were all expressly written herein.
[0024] consumer product compositions The present disclosure relates to consumer product compositions. The compositions may include inclusions, as described in more detail below.
[0025] The composition can be a consumer product. The consumer product can be useful as a product or device for baby care, beauty care, fabric and home care, family care, feminine care, or health care. The composition can be a beauty care composition, a fabric care composition, a home care composition, or a combination thereof.
[0026] The composition may be a beauty care composition, such as a hair treatment product (including shampoo and / or conditioner), a skin care product (including a cream, lotion, or other topically applied product for consumer use), a shaving care product (including a shaving lotion, foam, or pre- or post-shave treatment), a personal cleansing product (including a liquid body wash, liquid hand soap, and / or bar soap), a deodorant and / or antiperspirant, or mixtures thereof.
[0027] The composition may be a fabric care composition such as a laundry detergent composition (including heavy duty cleaning detergents), a fabric conditioning composition (including fabric softening and / or strengthening compositions), a laundry additive (e.g., a rinse additive), a fabric pretreatment composition, a fabric deodorizing composition, or a mixture thereof.
[0028] The compositions may be home care compositions such as air care, car care, dishwashing, hard surface cleaning and / or treatment, and other consumer or institutional cleaning.
[0029] The composition may be in any suitable form. For example, the composition may be in the form of a liquid composition, a granular composition, a single-compartment pouch, a multi-compartment pouch, a dissolving sheet, a lozenge or bead, a fibrous article, a tablet, a bar, a flake, a dryer sheet, or a mixture thereof. The composition may be selected from a liquid, a solid, or a combination thereof. Preferably, the composition is a liquid. The liquid may be encapsulated in a water-soluble film to form a unit dose article such as a pouch.
[0030] The composition may be in the form of a liquid. The liquid composition may contain from about 30%, or from about 40%, or from about 50%, to about 99%, or to about 95%, or to about 90%, or to about 75%, or to about 70%, or to about 60% water by weight of the composition. The liquid composition may be a liquid laundry detergent, a liquid fabric softener, a liquid dish detergent, a hair shampoo, a hair conditioner, or a mixture thereof. Preferably, the liquid composition is selected from a liquid laundry detergent, a liquid fabric strengthener, or a combination thereof. The liquid may be packaged in an aerosol can or other spray bottle.
[0031] The composition may be in the form of a solid. The solid composition may be a powdered or granular composition. Such compositions may be agglomerated or spray-dried. Such compositions may comprise a plurality of granules or particles, at least some of which comprise different compositions. The composition may be a powdered or granular cleaning composition that may include bleach. The composition may be in the form of beads or lozenges, which may be tableted from a liquid melt. The composition may be an extruded product.
[0032] The composition may be in the form of a unitized dose article, such as a tablet, pouch, sheet, or fibrous article. Such pouches typically include a water-soluble film, e.g., a polyvinyl alcohol water-soluble film, that at least partially encapsulates the composition. Suitable films are available from MonoSol, LLC (Indiana, USA). The composition may be enclosed in a single-compartment pouch or a multi-compartment pouch. The multi-compartment pouch may have at least two, at least three, or at least four compartments. The multi-compartment pouch may include side-by-side and / or stacked compartments. The composition contained in the pouch or its compartments may be liquid, solid (e.g., powder), or a combination thereof. The pouched composition may have a relatively small amount of water, e.g., less than about 20%, or less than about 15%, or less than about 12%, or less than about 10%, or less than about 8% by weight of the detergent composition.
[0033] Composition: 20s -1 and 21°C, 1 to 1500 centipoise (1 to 1500 mPa * s), preferably 100 to 1000 centipoise (100 to 1000 mPa * s), or more preferably 200 to 500 centipoise (200 to 500 mPa * A composition having such a viscosity is neither too high nor too low and is convenient to use.
[0034] inclusion bodies The present disclosure relates to inclusion bodies. The consumer product compositions of the present disclosure include inclusion bodies. Because more than one inclusion body is typically present, the composition may be described as including a plurality of inclusion bodies or a population of inclusion bodies.
[0035] The composition may comprise from about 0.05% to about 20%, or from about 0.05% to about 10%, or from about 0.1% to about 5%, or from about 0.2% to about 2%, by weight of the composition, of encapsulated bodies. The composition may comprise an amount of encapsulated bodies sufficient to provide the composition with from about 0.05% to about 10%, or from about 0.1% to about 5%, or from about 0.1% to about 2%, by weight of the composition, of perfume. As discussed herein, the amount or weight percent of encapsulated bodies refers to the combined shell material and core material.
[0036] The inclusion bodies may have a volume-weighted median inclusion body size of from about 0.5 micrometers to about 100 micrometers, or even from 10 to 100 micrometers, preferably from about 1 micrometer to about 60 micrometers, or even from 10 micrometers to 50 micrometers, or even from 20 micrometers to 45 micrometers, or alternatively from 20 micrometers to 60 micrometers.
[0037] core The encapsulates of the present disclosure may include a core. The core may be surrounded by a shell. The core may include a perfume. The perfume may include a single perfume raw material or a mixture of perfume raw materials.
[0038] The term "perfume raw material" (or "PRM"), as used herein, refers to a compound having a molecular weight of at least about 100 g / mole and useful for imparting an odor, fragrance, essence, or scent, alone or in combination with other perfume raw materials. Typical PRMs include, among others, alcohols, ketones, aldehydes, esters, ethers, nitrites, and alkenes such as terpenes. Lists of common PRMs can be found, for example, in "Perfume and Flavor Chemicals," Vol. I and Vol. II; Steffen Arctander Allured Pub. Co. (1994) and "Perfumes: Art, Science and Technology," PM and Lamparsky, D., Blackie Academic and Professional (1994).
[0039] PRMs may be characterized by their boiling point (BP) measured at atmospheric pressure (760 mmHg) and their octanol / water partition coefficient (P), which may be described by logP, determined according to the following test method. Based on these characteristics, as described in more detail below, PRMs can be classified as Quadrant 1, Quadrant 2, Quadrant 3, or Quadrant 4 fragrances. It may be desirable for fragrances to have various PRMs from different quadrants, for example, to provide fragrance benefits at different touchpoints during normal use.
[0040] The perfume may comprise perfume raw materials selected from the group consisting of: perfume raw materials having a boiling point (BP) below about 250°C and a ClogP below about 3; perfume raw materials having a BP above about 250°C and a ClogP above about 3; perfume raw materials having a BP above about 250°C and a ClogP below about 3; perfume raw materials having a BP below about 250°C and a ClogP below about 3; perfume raw materials having a BP below about 250°C and a ClogP above about 3, and mixtures thereof. Perfume raw materials having a boiling point BP below about 250°C and a ClogP below about 3 are known as Quadrant 1 perfume raw materials. Quadrant 1 perfume raw materials are preferably limited to less than 30% of the perfume composition. Perfume raw materials having a BP greater than about 250° C. and a ClogP greater than about 3 are known as quadrant 4 perfume raw materials, perfume raw materials having a BP greater than about 250° C. and a ClogP less than about 3 are known as quadrant 2 perfume raw materials, and perfume raw materials having a BP less than about 250° C. and a ClogP greater than about 3 are known as quadrant 3 perfume raw materials. Suitable quadrant 1, 2, 3, and 4 perfume raw materials are disclosed in U.S. Patent No. 6,869,923 (B1).
[0041] The perfume in the core of the encapsulation may include perfume raw materials capable of forming acids. For example, aldehydes (and corresponding acetals) have a tendency to form carboxylic acids in the presence of atmospheric oxygen, and esters (and corresponding lactones) can saponify, thereby forming carboxyl groups. Despite the formulation challenges associated with these acid-forming materials, it is still desirable to incorporate them into products because of the pleasing aesthetics they can provide.
[0042] The perfume of the core can be characterized by its acid number. The acid number is effectively a measure of the amount of free carboxylic acid present in the perfume prior to encapsulation. The perfume may be characterized by an acid number of greater than 5.0 mg / KOH immediately prior to encapsulation, as determined by the Acid Number Determination Method provided in the Test Methods section below. The perfume may be characterized by an acid number of greater than 5.25 mg / KOH, or greater than 5.50 mg / KOH, or greater than 5.75 mg / KOH, or greater than 6.0 mg / KOH immediately prior to encapsulation. The perfume may be characterized by an acid number of about 5.0 to about 25 mg / KOH, or about 5.0 to about 20 mg / KOH, or about 5.5 to about 20 mg / KOH, or about 6 to about 20 mg / KOH, or about 8 to about 20 mg / KOH, or about 10 to about 20 mg / KOH, or about 12 to about 20 mg / KOH, or about 15 to about 20 mg / KOH immediately prior to encapsulation.
[0043] Perfume raw materials capable of forming acids can include materials containing aldehyde, acetal, ester, and / or lactone moieties. The perfume of the present disclosure may contain perfume raw materials containing aldehyde, acetal, ester, lactone moieties, or mixtures thereof in an amount of about 30% to about 75% by weight, or about 35% to about 70% by weight, or about 40% to about 60% by weight of the total perfume in the core immediately after formation of the encapsulation body.
[0044] The encapsulated fragrance of the present disclosure may contain an aldehyde compound, an ester compound, or a mixture thereof. The fragrance of the present disclosure may contain about 30% to about 75% by weight, or about 35% to about 70% by weight, or about 40 to about 60% by weight of the aldehyde compound, the ester compound, or a mixture thereof, based on the total amount of fragrance in the core immediately after formation of the encapsulated body. The fragrance of the present disclosure may contain about 2% to about 30% by weight, or about 3% to about 25% by weight, or about 4% to about 20% by weight, or about 4% to about 15% by weight of the aldehyde compound, based on the total amount of fragrance in the core immediately after formation of the encapsulated body. The fragrance of the present disclosure may contain about 10% to about 60% by weight, or about 20% to about 50% by weight, or about 30% to about 50% by weight of the ester compound, based on the total amount of fragrance in the core immediately after formation of the encapsulated body.
[0045] Perfume raw materials capable of forming acids may include aliphatic aldehydes and / or acetals thereof; alicyclic aldehydes; aromatic and / or araliphatic aldehydes; aliphatic, aromatic, or araliphatic esters; lactones; or mixtures thereof.
[0046] Aliphatic aldehydes and acetals thereof include hexanal, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, tridecanal, 2-methyloctanal, 2-methylnonanal, (F)-2-hexenal, (Z)-4-heptenal, 2,6-dimethyl-5-heptenal, 10-undecenal, (F)-4-decenal, 2-dodecenal, 2,6,10-trimethyl-5,9-undecadienal, heptanal diethyl, 1,1-dimethoxy-2,2,5-trimethyl-4-hexene, citronellyloxyacetaldehyde, or mixtures thereof.
[0047] Alicyclic aldehydes may include 2,4-dimethyl-3-cyclohexenecarbaldehyde; 2-methyl-4-(2,2,6-trimethylcyclohexen-1-yl)-2-butenoyl; 4-(4-hydroxy-4-methylpentyl)-3-cyclohexenecarbaldehyde; 4-(4-methyl-3-penten-1-yl)-3-cyclohexenecarbaldehyde; or mixtures thereof.
[0048] Aromatic and araliphatic aldehydes include benzaldehyde, phenylacetaldehyde, 3-phenylpropanal, hydratropaaldehyde, 4-methylbenzaldehyde, 4-methylphenylacetaldehyde, 3-(4-ethylphenyl)-2,2-dimethylpropanal, 2-methyl-3-(4-isopropylphenyl)propanal, 2-methyl-3-(4-tert-butylphenyl)propanal, 3-(4-tert-butylphenyl)propanal, cinnamic aldehyde, Examples of suitable cinnamic aldehydes include a-butyldimethicone, a-amylcinnamic aldehyde, a-hexylcinnamic aldehyde, 3-methyl-5-phenylpentanal, 4-methoxybenzaldehyde, 4-hydroxy-3-methoxybenzaldehyde, 4-hydroxy-3-ethoxybenzaldehyde, 3,4-methylenedioxybenzaldehyde, 3,4-dimethoxybenzaldehyde, 2-methyl-3-(4-methoxyphenyl)propanal, 2-methyl-3-(4-methylenedioxyphenyl)propanal, or mixtures thereof.
[0049] Aliphatic carboxylic acid esters include (ε) and (Z)-3-hexenyl formate; ethyl acetate acetate; isoamyl; hexyl acetate; 3,5,5-trimethylhexyl acetate; 3-methyl-2-butenyl acetate; (E)-2-hexenyl acetate; (E)- and (Z)-3-hexenyl acetate; octyl acetate; 3-octyl acetate; 1-octen-3-yl acetate; ethyl butyrate; butyl butyrate; isoamyl; hexyl butyrate; (£)- and (Z)-3-hexenyl isobutyrate; Examples include hexyl crotonate, ethyl isovalerate, ethyl 2-methylpentanoate, ethyl hexanoate, allyl hexanoate, ethyl heptanoate, allyl heptanoate, ethyl octanoate, ethyl (f,Z)-2,4-decadienoate, methyl 2-octinat, methyl 2-noninat, allyl 2-isoamyloxyacetat, methyl 3,7-dimethyl-2,6-octadienoate, or mixtures thereof.
[0050] Esters of cyclic alcohols include 2-tert-butylcyclohexyl acetate; 4-tert-butylcyclohexyl acetate; 2-tert-pentylcyclohexyl acetate; 4-tert-pentylcyclohexyl acetate; decahydro-2-naphthyl acetate; 3-pentyltetrahydro-2H-pyran-4-yl acetate; decahydro-2,5,5,8a-tetramethyl-2-naphthyl acetate; Mention may be made of 4,7-methano-3a,4,5,6,7,7a-hexahydro-5- or -6-indenyl acetate; 4,7-methano-3a,4,5,6,7,7a-hexahydro-5- or 6-indenyl propionate; 4,7-methano-3a,4,5,6,7,7a-hexahydro-5- or 6-indenyl isobutyrate; 4,7-methanooctahydro-5- or 6-indenyl acetate; or mixtures thereof.
[0051] Esters of aromatic aliphatic alcohols and aliphatic carboxylic acids may include benzyl acetate, benzyl propionate, benzyl isobutyrate, benzyl isovalerate, 2-phenylethyl acetate, 2-phenylethyl propionate, 2-phenylethyl isobutyrat, 2-phenylethyl isovalerianat, 1-phenylethyl acetate, a-trichlormethylbenzylacetat, a,a-dimethylphenylethylacetat, a,a-dimethyl-phenylethyl butyrate, cinnamyl, 2-phenoxyethyl isobutyrate, 4-methoxybenzyl acetate, or mixtures thereof.
[0052] Esters of alicyclic carboxylic acids can include allyl-3-cyclohexylpropionate; allyl cyclohexyloxyacetate; methyl dihydrojasmonate; methyl jasmonate; methyl 2-hexyl-3-oxocyclopentanecarboxylate; ethyl 2-ethyl-6,6-dimethyl-2-cyclohexenecarboxylate; ethyl 2,3,6,6-tetramethyl-2-cyclohexenecarboxylate; ethyl-2-methyl-1,3-dioxolane-2-acetate; or mixtures thereof.
[0053] Examples of aromatic and araliphatic carboxylic acid esters include methyl benzoate, ethyl benzoate, hexyl benzoate, benzyl benzoate, methyl phenylacetate, ethyl phenylacetate, geranyl phenylacetate, phenylethyl phenylacetate, methyl cinnamate, ethyl cinnamate, benzyl cinnamate, phenylethylcinnamat, cinnamyl cinnamate, allyl phenoxyacetate, methyl salicylate, isoamyl salicylate, hexyl salicylate, cyclohexyl salicylate, cis-3-hexenyl salicylate, benzyl, phenylethyl salicylate, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, ethyl 3-phenylglycidate, ethyl 3-methyl-3-phenylglycidate, or mixtures thereof.
[0054] Just as it is known that not all esters are equally likely to be converted to acids, it is also known that not all aldehydes are equally susceptible to oxidation to acids. Thus, perfume mixtures that may have facially similar amounts of aldehydes and / or esters may be characterized by different acid values depending on the specific aldehydes and / or esters present in each perfume mixture.
[0055] For example, the likelihood of oxidation of a compound may be related to the ionization potential of the compound. Without being bound by theory, it is believed that the lower the ionization potential of a compound, the more likely oxidation is to occur. The core perfume may include perfume raw materials characterized by a relatively low ionization potential, for example, about 8.5 or less, or about 8.0 or less, or about 7.5 or less. The core perfume may include a certain minimum amount of such perfume raw materials, such as at least about 10% by weight, or at least about 20% by weight, or at least about 30% by weight, or at least about 40% by weight, or at least about 50% by weight of the core perfume. The greater the amount of such materials, the higher the acid value of the perfume may be, and it is believed that the encapsulation bodies of the present disclosure are particularly suitable for encapsulating such perfumes.
[0056] Certain esters may also be more likely to hydrolyze under certain conditions than others. Esters that are more likely to undergo acid hydrolysis may have a higher acid value because they cause more carboxylic acid formation. Furthermore, without being bound by theory, it is believed that esters that are more likely to undergo base hydrolysis may contribute to inclusion body leakage because the salts formed upon hydrolysis are more likely to enter the aqueous phase and leave the inclusion body core.
[0057] Differences in ionization potential and / or hydrolysis rate can be influenced by the structure of the perfume raw material: for example, steric hindrance near the ester moiety can result in a lower than expected hydrolysis rate.
[0058] As noted above, certain aldehydes are believed to be more susceptible to oxidation than others. The core perfume may include one or more of the following aldehyde perfume raw materials, which are believed to be relatively susceptible to oxidation to acids: 2,6-dimethyl-octanal; 2,2,5-trimethyl-4-hexenal; Scentenal; 2-phenyl-3-(2-furyl)prop-2-enal; (1)-citronellal; tetrahydrogeranial; 2-ethoxybenzaldehyde; 5-methylfurfural; Calypsone; d-xylose; 3-(2-furanyl)-2-methyl -2-Propenal; 3,5,5-Trimethylhexanal; Canthoxal; 2,4,5-Trimethoxybenzaldehyde; 4-Hydroxy-3-methoxycinnamaldehyde; 2,4,6-Trimethoxybenzaldehyde; 3,4,5-Trimethoxybenzaldehyde; 2,3,4-Trimethoxybenzaldehyde; (d)-Citronellal; Lyral; Methyloctylacetaldehyde; Octanal, 3,7-dimethyl; Adoxal; Citronellol Nonyloxyacetaldehyde; cis-3-hexenyloxyacetaldehyde; Methoxymelonal; n-Hexanal; Pentylvanillin; o-Methoxycinnamaldehyde; o-Anisaldehyde; Octanal; Nonaldehyde; 2,6,10-Trimethylundecanal; Citronellal; Melonal; Hydroxycitronellal; Prenal; Methylnonylacetaldehyde; Valeraldehyde; Caprylaldehyde; p-Anisaldehyde; Hep Tolualdehyde;Ethyl vanillin;Vanillin;Heliotropin;Helional;Veratraldehyde;Methoxycitronellal;7-Methoxy-3,7-dimethyloctanal;4-Ethoxybenzaldehyde;Vanillin isobutyrate;Vanillin acetate;Ethyl vanillin acetate;1-Methyl-4-(4-methyl-3-penten-1-yl)-3-cyclohexene-1-carboxaldehyde;8-Undecenal;Trans,trans-2,4-Nonadienal;Beta-Sinensal;6-Cyclopentylidenehexanal;Precyclemone B; Tangerinal; 2-Thiophenecarboxaldehyde; 9-Decenal; trans-2,cis-6-Nonadienal; Acalea; 4-tert-Butylbenzaldehyde; trans-2-Methyl-2-octenal; Citral; 3-Methyl-5-phenyl-1-pentanal; 2-Decenal; trans-2-Decenal; α,4-Dimethylbenzenepropanal; cis-5-Octenal; Citral cis-7-decen-1-al;cis-4-decen-1-al;2-trans-6-cis-dodecadienal;2-trans-4-trans-dodecadienal;3-Cyclohexene-1-propanal;2-Nonen-1-al;2-Undecenal;2,4-Decadienal, (E,E)-;2,4-Undecadienal, (E,E)-;Isohexenylcyclohexenylcarboxaldehyde;trans-2-Nonen-1-al;3-Nonyl acrylonitrile Lorraine; 2,6-Nonadienal; Lilial; 2-trans-6-trans-Nonadienal; alpha-Sinensal; Bourgeonal; 2-Tridecenal; pt-Butylphenylacetaldehyde; (Z)-3-Dodecenal; m-Methylbenzaldehyde; Mefloral; trans-4-Decen-1-al; Silvial; 2-Hexenal ;2,4-Nonadienal;Floralozone;Aldehyde C-11;cis-3-Hexenal;Myristaldehyde;Cinnamic aldehyde;p-Tolualdehyde;Undecanal;10-Undecenal;Lauraldehyde;Trans-2-Hexenal;Geranial;5-Methyl-2-thiophenecarboxaldehyde;Phenylacetaldehyde;Alpha-Amylcinnamic aldehyde;Floral Super;Hexylcinnamic aldehyde;Alpha-Methylcinnamic aldehyde;Benzaldehyde;or mixtures thereof. Preferably, the core perfume may include one or more of the following aldehyde perfume raw materials, as such PRMs are particularly aesthetically desirable:Scentenal;Adoxal; Ocatanal; Nonaldehyde; Melonal; Methylnonylacetaldehyde; p-Anisaldehyde; Ethyl vanillin; Vanillin; Heliotropin; Lilial; C-11 aldehyde; Undecanal; 10-Undecenal; Lauraldehyde; or mixtures thereof.
[0059] Similarly, certain esters are believed to be more likely to be converted to acids than others. The core perfume may include one or more of the following ester perfume raw materials, which are believed to be relatively susceptible to conversion to acids: Quincester; Selenolide; Nirvanolide; Acetalol; Alpinofix; Aladinate; Methyl Laitone; Firascone; 1-Hepten-1-ol, 1-acetate; (Z)-3-Hepten-1-yl acetate; 3-Hydroxy-4,5-dimethyl-2(5H)-furanone; Isoamyl undecylenate; Verdox HC; Pivarose Q. Q);Citryl acetate;(E)-5-Tangerinol;(Z)-5-Tangerinol;Miraldyl acetate;Geranyl phenyl acetate;Bergapten;Isopimpinelin;Parsol MCX;Ethyl beta-safranate;Nopyr acetate;Calyxol;Methyl octalactone;Isopregyl acetate;Ethyl tiglate;Vanoris;Acetoxymethyl-isolongifolene (isomers);1-Oxaspiro[2.5]octane-2-carboxylic acid, 5,5,7-trimethyl-, ethyl ester;3,6-Dimethyl-3-octanyl acetate;cis-3-Hexenyl-cis-3-hexenoate;cis-3-Hex Hexenyl lactate; Sclareolide; Hexarose; cis-iso-ambrettolide; Frutinat; Ethyl gamma-saffranate; Amyl cinnamate; Isoambrettolide; Bornyl isobutyrate; Cyprisate; Anapea; Montaverdi; Vertosine; Isobornyl isobutyrate; Cyprisate Ci; Cyclobutanate; cis-3-hexenyl butyrate; Geranyl tiglate; trans-Hedione; Isoamyl acetate; Givescone; Cyclogalbanate; Verdural B Extra;Ethyl alpha-saffranate;Jasmal;Styrallyl acetate;Nonalactone;trans-Ambrettolide;Furfuryl heptanoate;Furfuryl hexanoate;Alpha-amylcinnamyl acetate;Carbyl acetate;Ethyl isobutanoate;Citronellyl isobutyrate;Furfuryl octanoate;Octyl 2-furoate;Cedryl acetate;Isoamyl acetoacetate;cis-3-hexenyl benzoate;Phenylethyl benzoate ;Hexenyl tiglate;Agrumea;Gamma-undecalactone (racemic);(S)-Gamma-undecalactone;(R)-Gamma-undecalactone;Phenyl benzoate;Geranyl benzoate;Isobutyl salicylate;Isoamyl salicylate;Verdox;2-Acetoxy-3-butanone;Geranyl caprylate;(+)-D-Menthyl acetate;Prenyl benzoate;7-Methoxycoumarin;cis-3-Hexenyl 2-Methylbutyrate;cis-3-Hexenyl-trans-2-hexenoate;Ethyl valerate;n-Pentyl butyrate;Ethyl 3-hydroxybutyrate;Furacetate;Hexyl neopentanoate;Decyl propionate;Phenethyl tiglate;2-Phenyl-1(2)propenyl-1-ester;Methylcyclopentylidene acetate;Isononyl acetate;p-Cresyl crotonate;Octahydrocoumarin;Methyl trans-2,cis-4-decadienoate;3,3,5-Trimethylcyclohexyl acetate;Hexyl vanillate;cis-3-Hexenyl levulinate nate;Dimethyl anthranilate;Methyl 2-methylbutyrate;Butyl salicylate;Isomenthyl acetate;Dihydrocarveol acetate;Tetrahydrolinalyl acetate;Dimethyloctanyl acetate;Methyl cis-4-octenoate;Hexahydro-3,5,5-trimethyl-3,8a-ethano-8aH-1-benzopyran-2(3H)-one;Cyclohexylethyl acetate;Alpha-acetoxystyrene;p-Methylbenzyl acetate;Heptyl propionate;Gamma-dodecalactone;Neryl isobutyrate;Geranyl isobutyrate;Hexyl isobutyrate;Methyl geranate;or mixtures thereof. Preferably, the core perfume may include one or more of the following ester perfume raw materials, as such PRMs are particularly aesthetically desirable: Methyl Laitone; Verdox HC; Ethyl Beta-Saffronate; Hexarose; Cyclobutanate; Cyclogalbanate; Ethyl Alpha-Saffronate; Jasmal; Styrallyl Acetate; Nonalactone; Gamma-Undecalactone (racemic); Verdox; Furol Acetate; or mixtures thereof.
[0060] The perfume in the core may contain a mixture of perfume raw materials. The perfume in the core may include at least three, or at least four, or at least five, or at least six, or at least seven, or at least eight, or at least nine, or at least ten perfume raw materials. A mixture of perfume raw materials may provide more complex and desirable aesthetics and / or better perfume performance or longevity, for example, at various touchpoints.
[0061] The perfume in the core may contain less than about 50, or less than about 40, or less than about 30, or less than about 25, or less than about 20 perfume raw materials. It may be desirable to limit the number of perfume raw materials in a perfume as a way to reduce or limit formulation complexity and / or cost.
[0062] The perfume may comprise at least one, or at least two, or at least three perfume raw materials that do not form acids.The perfume may comprise at least one, or at least two, or at least three perfume raw materials that do not contain aldehyde, acetal, ester, and / or lactone moieties.
[0063] The fragrance may include at least one fragrance raw material of natural origin. Such ingredients may be desirable for sustainability / environmental reasons. The fragrance raw material of natural origin may include a natural extract or essence that may contain a mixture of PRMs. Such natural extracts or essences may include orange oil, lemon oil, rose extract, lavender, musk, patchouli, balsam essence, sandalwood oil, pine oil, cedar, etc.
[0064] The core of the encapsulates of the present disclosure may comprise a partitioning modifier, which may comprise, in addition to the encapsulated benefit agent, from greater than 0% to about 80%, preferably from greater than 0% to about 50%, more preferably from greater than 0% to about 30%, and most preferably from greater than 0% to about 20% of a partitioning modifier based on the total weight of the core.
[0065] Partition regulators include vegetable oils, modified vegetable oils, C4-C 24 The partitioning modifier may comprise a material selected from the group consisting of mono-, di-, and tri-esters of fatty acids, isopropyl myristate, dodecanophenone, lauryl laurate, methyl behenate, methyl laurate, methyl palmitate, methyl stearate, and mixtures thereof. The partitioning modifier may preferably comprise or consist of isopropyl myristate. The modified vegetable oil may be esterified and / or brominated. The modified vegetable oil may preferably comprise castor oil and / or soybean oil. U.S. Patent Application Publication No. 20110268802, incorporated herein by reference, describes other partitioning modifiers that may be useful in the perfume encapsulates described herein.
[0066] shell The composition may include a shell, which may partially or completely surround the core.
[0067] The shell may comprise a polymer material. The polymer material may comprise a (meth)acrylate material. As mentioned above, it has been found that perfumes having an acid value of more than 5.0 mg KOH / g perform surprisingly well when encapsulated in a shell comprising an acrylate material. The polymer material of the shell may be formed at least in part by a radical polymerization process.
[0068] The acrylate material of the shell may comprise a (meth)acrylate material selected from the group consisting of polyacrylate, polyethylene glycol acrylate, polyurethane acrylate, epoxy acrylate, polymethacrylate, polyethylene glycol methacrylate, polyurethane methacrylate, epoxy methacrylate, and mixtures thereof.
[0069] As used herein, reference to the terms "(meth)acrylate" or "(meth)acrylic" should be understood to refer to both the acrylate and methacrylate versions of a particular monomer, oligomer, and / or prepolymer. For example, "allyl (meth)acrylate" indicates that both allyl methacrylate and allyl acrylate are possible; similarly, reference to an alkyl ester of (meth)acrylic acid indicates that both alkyl esters of acrylic acid and alkyl esters of methacrylic acid are possible; similarly, poly(meth)acrylate indicates that both polyacrylate and polymethacrylate are possible. Poly(meth)acrylate materials include, for example, polyester poly(meth)acrylates, urethane and polyurethane poly(meth)acrylates (especially those prepared by the reaction of hydroxyalkyl (meth)acrylates with polyisocyanates or urethane polyisocyanates), methyl cyanoacrylate, ethyl cyanoacrylate, diethylene glycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, ethylene glycol di(meth)acrylate, allyl (meth)acrylate, glycidyl (meth)acrylate, (meth)acrylate-functional silicones, di-, tri-, and tetraethylene glycol di(meth)acrylate, dipropylene glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate, ... It is intended to encompass a wide range of polymeric materials, including acrylate, di(pentamethylene glycol) di(meth)acrylate, ethylene di(meth)acrylate, neopentyl glycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, ethoxylated bisphenol A di(meth)acrylate, bisphenol A di(meth)acrylate, diglycerol di(meth)acrylate, tetraethylene glycol dichloroacrylate, 1,3-butanediol di(meth)acrylate, neopentyl di(meth)acrylate, trimethylolpropane tri(meth)acrylate, polyethylene glycol di(meth)acrylate, and dipropylene glycol di(meth)acrylate, as well as various multifunctional (meth)acrylates.Monofunctional acrylates, i.e., those containing only one acrylate group, can also be advantageously used. Typical monoacrylates include 2-ethylhexyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, cyanoethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, p-dimethylaminoethyl (meth)acrylate, lauryl (meth)acrylate, cyclohexyl (meth)acrylate, tetrahydrofurfuryl (meth)acrylate, chlorobenzyl (meth)acrylate, aminoalkyl (meth)acrylate, various alkyl (meth)acrylates, and glycidyl (meth)acrylate. Mixtures of (meth)acrylates or their derivatives, as well as mixtures of one or more (meth)acrylate monomers, oligomers, and / or prepolymers or their derivatives with other copolymerizable monomers, including acrylonitrile and methacrylonitrile, can also be used.
[0070] The primary shell material may comprise a polyacrylate. The shell material may comprise from about 25% to about 100%, or from about 50% to about 100%, or from about 65% to about 100% by weight of the shell material as a polyacrylate polymer. The polyacrylate may comprise a polyacrylate cross-linked polymer.
[0071] The (meth)acrylate material of the encapsulant may comprise a polymer derived from a material containing one or more multifunctional acrylate moieties. The multifunctional acrylate moieties may be selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, pentafunctional acrylates, hexafunctional acrylates, heptafunctional acrylates, and mixtures thereof. The multifunctional acrylate moieties are preferably hexafunctional acrylates. The acrylate material may comprise a polyacrylate containing moieties selected from the group consisting of acrylate moieties, methacrylate moieties, amine acrylate moieties, amine methacrylate moieties, carboxylic acid acrylate moieties, carboxylic acid methacrylate moieties, and combinations thereof, preferably amine methacrylate moieties or carboxylic acid acrylate moieties.
[0072] The (meth)acrylate material may include a material containing one or more multifunctional acrylate and / or multifunctional methacrylate moieties. The ratio of the material containing one or more multifunctional acrylate moieties to the material containing one or more methacrylate moieties may be from about 999:1 to about 6:4, preferably from about 99:1 to about 8:1, and more preferably from about 99:1 to about 8.5:1.
[0073] Examples of polyfunctional acrylates include CN975 (hexafunctional aromatic urethane acrylate), CN9006 (hexafunctional aliphatic urethane acrylate), CN296, CN293, CN2295 (hexafunctional polyester acrylate oligomer or acrylated polyester), CN2282, CN294E, CN299 (tetrafunctional polyester acrylate oligomer or acrylated polyester), SR494, SR295, SR255 (tetrafunctional acrylate oligomer), SR90 Examples of suitable acrylate materials include those commercially available from Sartomer Inc., such as SR909, SR9011 (trifunctional methacrylate oligomer), SR929 (polyester urethane acrylate oligomer), SR9053 (acid ester trifunctional acrylate oligomer), CN989, CN9301 (aliphatic urethane acrylate), SR350, SR353 (trifunctional acrylate oligomer), SR9012 (trifunctional acrylate ester), and / or SR368 (tris(2-hydroxyethyl)isocyanurate triacrylate). The acrylate material may be derived from a monomer selected from a hexafunctional acrylate, triacrylate, or mixture thereof, preferably a hexafunctional aromatic acrylate, isocyanurate triacrylate, or mixture thereof, more preferably a hexafunctional aromatic urethane acrylate, tris(2-hydroxyethyl)isocyanurate triacrylate, or mixture thereof, as such materials have been found to be useful in making robust capsules.
[0074] The encapsulation bodies may contain about 0.1% to about 40%, preferably about 0.5% to about 40%, and more preferably 0.8% to 5%, of an emulsifier, based on the total weight of the encapsulation bodies. The emulsifier may be useful as a processing aid during the formation of the encapsulation bodies. The emulsifier may be embedded within the shell and / or located on the shell. The emulsifier may be selected from the group consisting of polyvinyl alcohol, carboxylated or partially hydrolyzed polyvinyl alcohol, methyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, methylhydroxypropyl cellulose, salts or esters of stearic acid, lecithin, organic sulfonic acids, 2-acrylamido-2-alkylsulfonic acid, styrene sulfonic acid, polyvinylpyrrolidone, copolymers of N-vinylpyrrolidone, polyacrylic acid, polymethacrylic acid, copolymers of acrylic acid and methacrylic acid, and water-soluble surfactant polymers that reduce the surface tension of water.
[0075] The emulsifier preferably comprises polyvinyl alcohol, which preferably has at least one or a mixture of the following properties: (i) a degree of hydrolysis of 70% to 99%, preferably 75% to 98%, more preferably 80% to 96%, more preferably 82% to 96%, and most preferably 86% to 94%, and / or (ii) a viscosity, in a 4% aqueous solution at 20°C, of 2 mPa s to 150 mPa s, preferably 3 mPa s to 70 mPa s, more preferably 4 mPa s to 60 mPa s, and even more preferably 5 mPa s to 55 mPa s. Suitable polyvinyl alcohol materials may be selected from Selvol 540 PVA (Sekisui Specialty Chemicals, Dallas, TX), Mowiol 18-88 = Poval 18-88, Mowiol 3-83, Mowiol 4-98 = Poval 4-98 (Kuraray), Poval KL-506 = Poval 6-77 KL (Kuraray), Poval R-1130 = Poval 25-98 R (Kuraray), Gohsenx K-434 (Nippon Synthetic Chemical Industry).
[0076] The encapsulated bodies of the present disclosure may include a coating. The shell may include a coating; for example, the coating may be present on the exterior surface of the shell. The encapsulated bodies may be manufactured and then subsequently coated with a coating material. The coating may be useful as an adhesion aid. Non-limiting examples of coating materials include poly(meth)acrylate, poly(ethylene-maleic anhydride), polyamine, wax, polyvinylpyrrolidone, polyvinylpyrrolidone copolymer, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methacrylate, polyvinylpyrrolidone / vinyl acetate, polyvinyl acetal, polyvinyl butyral, polysiloxane, poly(propylene maleic anhydride), maleic anhydride derivatives, copolymers of maleic anhydride derivatives, polyvinyl alcohol, styrene-butadiene latex, gelatin, gum arabic, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydrogels, and the like. Examples of suitable coating materials include, but are not limited to, materials selected from the group consisting of hydroxyethyl cellulose, other modified celluloses, sodium alginate, chitosan, casein, pectin, modified starch, polyvinyl acetal, polyvinyl butyral, polyvinyl methyl ether / maleic anhydride, polyvinylpyrrolidone and its copolymers, poly(vinylpyrrolidone / methacrylamidopropyltrimethylammonium chloride), polyvinylpyrrolidone / vinyl acetate, polyvinylpyrrolidone / dimethylaminoethyl methacrylate, polyvinylamine, polyvinylformamide, polyallylamine, copolymers of polyvinylamine, polyvinylformamide, and polyallylamine, and mixtures thereof. The coating material may be a cationic polymer. The coating material may include chitosan.
[0077] The composition may comprise inclusions according to the present disclosure, wherein at least 75% of the inclusions have an inclusion shell thickness of from about 10 nm to about 350 nm, from about 20 nm to about 200 nm, or from 25 nm to about 180 nm, as measured by the Inclusion Shell Thickness Test Method described herein.
[0078] Consumer Product Supplements The consumer product compositions of the present compositions may include consumer product adjuncts, which may provide a benefit in the intended end use of the composition or may be processing and / or stabilizing aids.
[0079] Suitable consumer product adjuncts may include surfactants, conditioning actives, deposition aids, rheology modifiers or structurants, bleaching systems, stabilizers, builders, chelating agents, dye transfer inhibitors, dispersants, enzymes and enzyme stabilizers, catalytic metal complexes, polymeric dispersants, clay and stain removal / anti-redeposition agents, brighteners, suds suppressors, silicones, hueing agents, aesthetic dyes, additional perfumes and perfume delivery systems, structural elastomers, carriers, hydrotropes, processing aids, structurants, anti-agglomerating agents, coatings, formaldehyde scavengers, and / or pigments.
[0080] Depending on the intended form, formulation, and / or end use, the compositions of the present disclosure may or may not contain one or more of the following adjunct materials: bleach activators, surfactants, builders, chelating agents, dye transfer inhibitors, dispersants, enzymes and enzyme stabilizers, catalytic metal complexes, polymeric dispersants, clay and soil removal / anti-redeposition agents, brighteners, suds suppressors, dyes, additional perfumes and perfume delivery systems, structural elastomers, fabric softeners, carriers, hydrotropes, processing aids, structurants, anti-agglomerating agents, coatings, formaldehyde scavengers, and / or pigments.
[0081] The exact nature of these additional ingredients and the concentrations at which they are incorporated will depend on the physical form of the composition and the nature of the work being used. However, if one or more adjuvants are present, such one or more adjuvants can be present as detailed below. The following is a non-limiting list of suitable additional adjuvants:
[0082] surfactants The composition of the present disclosure may comprise a surfactant. The surfactant may be useful, for example, to provide cleaning benefits. The composition may comprise a surfactant system, which may contain one or more surfactants.
[0083] Compositions of the present disclosure may comprise from about 1% to about 70%, or from about 2% to about 60%, or from about 5% to about 50% by weight of the composition of a surfactant system. Liquid compositions may comprise from about 5% to about 40% by weight of the composition of a surfactant system. Compositions suitable for dense dosage forms, such as dense liquids, gels, and / or unit dose forms, may comprise from about 25% to about 70%, or from about 30% to about 50% by weight of the composition of a surfactant system.
[0084] The surfactant system may include anionic surfactants, nonionic surfactants, zwitterionic surfactants, cationic surfactants, amphoteric surfactants, or combinations thereof. The surfactant system may include nonionic surfactants such as linear alkylbenzene sulfonates, alkyl ethoxylated sulfates, alkyl sulfates, ethoxylated alcohols, amine oxides, or mixtures thereof. The surfactant may be at least partially derived from a natural source, such as natural feedstock alcohols.
[0085] Suitable anionic surfactants may include any conventional anionic surfactant. This may include, for example, sulfate detersive surfactants for alkoxylated and / or non-alkoxylated alkyl sulfate materials, and / or sulfonic acid-based detersive surfactants, such as alkylbenzene sulfonates. The anionic surfactant may be linear, branched, or a combination thereof. Preferred surfactants include linear alkylbenzene sulfonates (LAS), alkyl ethoxylated sulfates (AES), alkyl sulfates (AS), or mixtures thereof. Other suitable anionic surfactants include branched modified alkylbenzene sulfonates (MLAS), methyl ester sulfonates (MES), sodium lauryl sulfate (SLS), sodium lauryl ether sulfate (SLES), and / or alkyl ethoxylated carboxylates (AEC). The anionic surfactant may be in the acid form, salt form, or a mixture thereof. The anionic surfactants may be partially or totally neutralized, for example, with an alkali metal (eg, sodium) or an amine (eg, monoethanolamine).
[0086] The surfactant system may include a nonionic surfactant. Suitable nonionic surfactants include alkoxylated fatty alcohols, such as ethoxylated fatty alcohols. Other suitable nonionic surfactants include alkoxylated alkylphenols, alkylphenol condensates, mid-chain branched alcohols, mid-chain branched alkyl alkoxylates, alkyl polysaccharides (e.g., alkyl polyglycosides), polyhydroxy fatty acid amides, ether-capped poly(oxyalkylated) alcohol surfactants, and mixtures thereof. The alkoxylate units may be ethyleneoxy units, propyleneoxy units, or mixtures thereof. The nonionic surfactant may be linear, branched (e.g., mid-chain branched), or a combination thereof. Specific nonionic surfactants include alcohols having an average of about 12 to about 16 carbons and an average of about 3 to about 9 ethoxy groups, such as C12-C14 EO7 nonionic surfactants.
[0087] Suitable zwitterionic surfactants include betaines, C8-C9 alkyl dimethyl betaines, including alkyl dimethyl betaines and cocodimethylamidopropyl betaine. 18 (For example, C 12 ~C 18 ) amine oxides (e.g., C 12~14 dimethylamine oxide), and / or N-alkyl-N,N-dimethylamino-1-propanesulfonate (the alkyl group is C8 to C 18 or C 10 ~C 14 The zwitterionic surfactants may include any conventional zwitterionic surfactant, such as sulfo and hydroxybetaines, such as (which may be
[0088] Depending on the formulation and / or intended end use, the composition may be substantially free of certain surfactants. For example, a liquid fabric enhancing composition, such as a fabric softener, may be substantially free of anionic surfactants, as such surfactants may negatively interact with cationic components.
[0089] Conditioning Actives The compositions of the present disclosure may include conditioning actives. Compositions containing conditioning actives may provide softness, anti-wrinkle, anti-static, conditioning, anti-stretch, color, and / or appearance benefits.
[0090] The conditioning active may be present at a level of about 1% to about 99% by weight of the composition. The composition may comprise from about 1%, or about 2%, or about 3%, to about 99%, or about 75%, or about 50%, or about 40%, or about 35%, or about 30%, or about 25%, or about 20%, or about 15%, or about 10% conditioning active by weight of the composition. The composition may comprise from about 5% to about 30% conditioning active by weight of the composition.
[0091] Suitable conditioning actives for the compositions of the present disclosure may include quaternary ammonium ester compounds, silicones, non-ester quaternary ammonium compounds, amines, fatty acid esters, sucrose esters, silicones, dispersible polyolefins, polysaccharides, fatty acids, softening or conditioning oils, polymer latexes, or combinations thereof.
[0092] The composition may contain a quaternary ammonium ester compound, a silicone, or a combination of these, preferably a single combination. The total combined amount of the quaternary ammonium ester compound and the silicone may be about 5% to about 70% by weight of the composition, or about 6% to about 50% by weight, or about 7% to about 40% by weight, or about 10% to about 30% by weight, or about 15% to about 25% by weight. The composition may contain the quaternary ammonium ester compound and the silicone in a weight ratio of about 1:10 to about 10:1, or about 1:5 to about 5:1, or about 1:3 to about 1:3, or about 1:2 to about 2:1, or about 1:1.5 to about 1.5:1, or about 1:1.
[0093] The composition may contain a mixture of different types of conditioning actives. The composition of the present disclosure may contain a specific conditioning active but may be substantially free of other conditioning actives. For example, the composition may be free of quaternary ammonium ester compounds, silicones, or both. The composition may contain a quaternary ammonium ester compound but may be substantially free of silicones. The composition may contain silicones but may be substantially free of quaternary ammonium ester compounds.
[0094] Adhesion aid The compositions of the present disclosure may also include a deposition aid. The deposition aid can promote deposition of encapsulates, conditioning actives, fragrances, or combinations thereof, improving the performance benefits of the composition and / or allowing for more efficient incorporation of such benefit agents. The compositions may comprise from 0.0001% to 3%, preferably from 0.0005% to 2%, more preferably from 0.001% to 1%, or from about 0.01% to about 0.5%, or from about 0.05% to about 0.3%, by weight of the composition, of the deposition aid. The deposition aid may be a cationic or amphoteric polymer, preferably a cationic polymer.
[0095] Cationic polymers in general and their manufacturing methods are known in various literature. Suitable cationic polymers include known quaternary ammonium polymers, such as "polyquaterniums" as named according to the International System for Nomenclature of Cosmetic Ingredients, such as polyquaternium-6 (poly(diallyldimethylammonium chloride)), polyquaternium-7 (copolymer of acrylamide and diallyldimethylammonium chloride), polyquaternium-10 (quaternized hydroxyethyl cellulose), and polyquaternium-22 (copolymer of acrylic acid and diallyldimethylammonium chloride).
[0096] The deposition aid may be selected from the group consisting of polyvinyl formamide, partially hydroxylated polyvinyl formamide, polyvinyl amine, polyethylene imine, ethoxylated polyethylene imine, polyvinyl alcohol, polyacrylate, and combinations thereof. The cationic polymer may include a cationic acrylate.
[0097] The deposition aid can be added concomitantly with the encapsulates (e.g., simultaneously with the encapsulated benefit agent) or directly / separately into the fabric treatment composition. The weight average molecular weight of the polymer can be from 500 Daltons to 5,000,000 Daltons, or from 1,000 Daltons to 2,000,000 Daltons, or from 2,500 Daltons to 1,500,000 Daltons, as measured by size exclusion chromatography against polyethylene oxide standards using refractive index (RI) detection. The weight average molecular weight of the cationic polymer can be from 5,000 Daltons to 37,500 Daltons.
[0098] Rheology Modifiers / Structuring Agents The compositions of the present disclosure may contain rheology modifiers and / or structuring agents. Rheology modifiers can be used to "thicken" or "thin" a liquid composition to a desired viscosity. Structurants can be used to promote phase stability and / or suspend or inhibit aggregation of particles in the liquid composition, such as the inclusions described herein.
[0099] Suitable rheology modifiers and / or structurants may include non-polymeric crystalline hydroxyl-functional structurants (including those based on hydrogenated castor oil), polymeric structurants, cellulose fibers (e.g., microfibrillated cellulose, which may be derived from bacterial, fungal, or plant sources, including wood), diamide gelling agents, or combinations thereof.
[0100] The polymeric structurant may be of natural or synthetic origin. Naturally derived polymeric structurants may include hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, carboxymethyl cellulose, polysaccharide derivatives, and mixtures thereof. Polysaccharide derivatives may include pectin, alginate, arabinogalactan (gum arabic), carrageenan, gellan gum, xanthan gum, guar gum, and mixtures thereof. Synthetic polymeric structurants may include polycarboxylates, polyacrylates, hydrophobically modified ethoxylated urethanes, hydrophobically modified nonionic polyols, and mixtures thereof. Polycarboxylate polymers may include polyacrylates, polymethacrylates, or mixtures thereof. Polyacrylates may be polyacrylates formed from unsaturated mono- or dicarbonates and C1-C (meth)acrylic acids. 30 Copolymers with alkyl esters may be mentioned. Such copolymers are available from Noveon Inc. under the trade name Carbopol Aqua 30. Another suitable structurant is sold under the trade name Rheovis CDE and is available from BASF.
[0101] Inclusion bodies and feedstock compositions thereof The present disclosure further relates to encapsulates and feedstock compositions thereof. The encapsulates of the present disclosure, which may have a core and a shell surrounding the core, are described in more detail above.
[0102] The encapsulated bodies of the present disclosure can be manufactured according to any known method using suitable starting materials. For example, the encapsulated bodies can be formed by (a) combining a first oil with a second oil, wherein the first oil comprises a fragrance, an initiator, and a partitioning modifier, preferably a partitioning modifier comprising a material selected from the group consisting of vegetable oils (preferably including castor oil and / or soybean oil), modified vegetable oils (preferably esterified and / or brominated), propan-2-yltetradecanoate (i.e., isopropyl myristate), and mixtures thereof, preferably the partitioning modifier comprising propan-2-yltetradecanoate, and the second oil comprises (i) an oil-soluble aminoalkyl acrylate and / or methacrylate monomer, (ii) an oil-soluble aminoalkyl acrylate and / or methacrylate monomer, (iii) an oil-soluble aminoalkyl acrylate and / or methacrylate monomer, (iv) an oil-soluble aminoalkyl acrylate and / or methacrylate monomer, (v) an oil-soluble aminoalkyl acrylate and / or methacrylate monomer, (vi ... The emulsion can be made by a process comprising: heating in one or more heating steps an emulsion formed by emulsifying a combination of a first composition comprising (ii) a carboxyalkyl acrylate monomer and / or oligomer, (iii) a material selected from the group consisting of a multifunctional acrylate monomer, a multifunctional methacrylate monomer, a multifunctional methacrylate oligomer, a multifunctional acrylate oligomer, and mixtures thereof, and (iv) a fragrance; and (b) a second composition comprising water, a pH adjuster, an emulsifier, preferably an anionic emulsifier (preferably, the emulsifier comprises polyvinyl alcohol), and optionally a reaction initiator.
[0103] In the process, the heating step includes heating the emulsion for about 1 hour to about 20 hours, preferably about 2 hours to about 15 hours, more preferably about 4 hours to about 10 hours, and most preferably about 5 hours to about 7 hours, and / or heating the emulsion sufficiently to transfer a heat amount of about 500 joules / kg to about 5000 joules / kg, about 1000 joules / kg to about 4500 joules / kg, or about 2900 joules / kg to about 4000 joules / kg to the emulsion.
[0104] The emulsion may be characterized by having a volume-weighted median inclusion body size of about 0.5 μm to about 100 μm, preferably about 1 μm to about 60 μm, more preferably about 10 μm to about 25 μm, or about 0.5 μm to about 10 μm, prior to the heating step.
[0105] The weight ratio of the first composition to the second composition may be about 1:9 to about 1:1, preferably about 3:7 to about 4:6. The weight ratio of the first oil to the second oil may be about 99:1 to about 1:99, preferably 9:1 to about 1:9, more preferably 6:4 to about 8:2.
[0106] The present disclosure also relates to a feedstock composition comprising the encapsulates described herein. The feedstock composition, which may be convenient for storage and / or transportation, can be combined with other adjunct ingredients to form a consumer product composition. The feedstock composition may be a slurry or an aggregate.
[0107] The slurry may comprise from about 1% to about 75% by weight of the inclusion bodies, or from about 5% to about 60% by weight of the slurry, or from about 20% to about 60% by weight of the slurry, or from about 30% to about 60% by weight of the slurry. The slurry may comprise from about 25% to about 99% by weight of the slurry, or from about 40% to about 95% by weight of the slurry, or from about 40% to about 80% by weight of the slurry, or from about 40% to about 70% by weight of the slurry.
[0108] The slurry may include a processing aid that may be selected from the group consisting of water, a flocculation inhibitor (such as a divalent salt), a particle suspension polymer, a solvent (polar and / or non-polar), and mixtures thereof.
[0109] Examples of aggregation inhibitors include salts that can have a charge shielding effect around the particles, such as magnesium chloride, calcium chloride, magnesium bromide, magnesium sulfate, and mixtures thereof.
[0110] Examples of particle suspending polymers include polymers such as xanthan gum, carrageenan gum, guar gum, shellac, alginate, chitosan, and the like; cellulosic materials such as carboxymethyl cellulose, hydroxypropyl methyl cellulose, cationic charged cellulosic materials, and the like; polyacrylic acid; polyvinyl alcohol; hydrogenated castor oil, ethylene glycol distearate; and mixtures thereof.
[0111] Examples of solvents (as used herein, not intended to include water) include polar solvents, including, but not limited to, ethylene glycol, propylene glycol, polyethylene glycol, glycerol, and non-polar solvents, including, but not limited to, mineral oil, silicone oil, hydrocarbon paraffin oil, and mixtures thereof.
[0112] The slurry may further comprise a deposition aid such as a polymer selected from the group including: polysaccharides, in one embodiment cationically modified starch and / or cationically modified guar; polysiloxanes; polydiallyldimethylammonium halides; copolymers of polydiallyldimethylammonium chloride and polyvinylpyrrolidone; compositions comprising polyethylene glycol and polyvinylpyrrolidone; acrylamides; imidazoles, imidazolinium halides; polyvinylamines; copolymers of polyvinylamine and N-vinylformamide; polyvinylformamide, polyvinyl alcohol; polyvinyl alcohol crosslinked with boric acid; polyacrylic acid; polyglycerol ether silicone crosspolymers; polyacrylic acid, polyacrylates, polyvinylamine and amines, in one embodiment diethylenetriamine, Copolymers of amines, ethylenediamine, bis(3-aminopropyl)piperazine, N,N-bis-(3-aminopropyl)methylamine, tris(2-aminoethyl)amine, and mixtures thereof with polyvinyl alcohol oligomers; polyethyleneimine, derivatized polyethyleneimines such as ethoxylated polyethyleneimine; polymeric compounds comprising at least two moieties selected from the group consisting of carboxylic acid moieties, amine moieties, hydroxyl moieties, and nitrile moieties in a backbone of polybutadiene, polyisoprene, polybutadiene / styrene, polybutadiene / acrylonitrile, carboxyl-terminated polybutadiene / acrylonitrile, or combinations thereof; preformed coacervates of anionic surfactants combined with cationic polymers; polyamines and mixtures thereof.
[0113] The feed composition may be an agglomerate comprising inclusion bodies and a second material, which may include materials such as silica, citric acid, sodium carbonate, sodium sulfate, sodium chloride, and binders such as sodium silicate, modified cellulose, polyethylene glycol, polyacrylate, polyacrylic acid, zeolite, and mixtures thereof.
[0114] One or more flavors may be used on the exterior of the core-shell encapsulation that are different from the flavor(s) contained in the core of the encapsulation.
[0115] How consumer products are manufactured The present disclosure relates to a process for making any of the compositions described herein. The process for making a composition, which may be a consumer product composition, may include combining an encapsulate described herein with a consumer product adjunct described herein.
[0116] The encapsulated bodies may be combined with one or more such consumer product supplements when the encapsulated bodies are in one or more forms, including a slurry form, a neat encapsulated body form, and a spray-dried encapsulated body form. The encapsulated bodies may be combined with such consumer product supplements by methods including mixing and / or spraying.
[0117] The compositions of the present disclosure can be formulated into any suitable form and can be prepared by any process selected by the formulator. The inclusion bodies and auxiliary materials can be combined in a batch process, a circulation loop process, and / or an in-line mixing process. Suitable equipment for use in the methods disclosed herein can include continuous stirred tank reactors, homogenizers, turbine agitators, recirculation pumps, paddle mixers, plow shear mixers, ribbon blenders, vertical shaft granulators and drum mixers (both batch and, if available, continuous process configurations), spray dryers, and extruders.
[0118] The composition may be encapsulated in a water-soluble film according to known methods to form a unit dose article.
[0119] The compositions may be dispensed into aerosol or other spray containers in accordance with known methods.
[0120] Consumer Product Usage The present disclosure further relates to methods of using consumer products. For example, the present disclosure relates to methods of treating surfaces or articles with compositions according to the present disclosure. Such methods may provide cleaning, conditioning, and / or deodorizing benefits.
[0121] Suitable surfaces or articles may include fabrics (including clothing, towels, or linens), hard surfaces (such as tile, porcelain, linoleum, or wood floors), dishware, hair, skin, or mixtures thereof.
[0122] The method may include contacting a surface or article with a composition of the present disclosure. The composition may be in undiluted form or may be diluted with a liquid, such as a cleaning or rinsing liquid. The composition may be diluted with water before, during, or after contacting the surface or article. The surface or article may optionally be washed and / or rinsed before and / or after the contacting step. The composition may be sprayed into the air and / or directly onto the surface or article.
[0123] Methods of treating and / or cleaning a surface or article may include (a) optionally washing, rinsing, and / or drying the surface or article; (b) contacting the surface or article with a composition described herein, optionally in the presence of water; (c) optionally washing and / or rinsing the surface or article; and (d) optionally drying by drying passively and / or via an active method such as a washer dryer.
[0124] For purposes of the present invention, cleaning includes, but is not limited to, scrubbing and mechanical agitation. Fabrics may include almost any fabric capable of being laundered or treated under standard consumer use conditions.
[0125] Liquids that can contain the disclosed compositions can have a pH of about 3 to about 11.5. When diluted, such compositions are typically used at concentrations of about 500 ppm to about 15,000 ppm in solution. When the cleaning solvent is water, the water temperature is usually in the range of about 5 to about 90°C, and when the site includes fabric, the water to fabric ratio is typically about 1:1 to about 30:1.
[0126] The present disclosure further relates to surfaces or articles treated with a composition as described herein. Surfaces or articles treated with a composition according to the present disclosure may include inclusions according to the present disclosure, for example, within or on the surface after treatment.
[0127] combination Specifically contemplated combinations of the present disclosure are set forth herein in the alphabetized paragraphs below. These combinations are exemplary in nature and are not intended to be limiting.
[0128] A. A consumer product composition comprising: an encapsulate comprising a core and a shell surrounding the core, wherein the core comprises a fragrance, the fragrance being characterized by an acid number of greater than 5.0 mg KOH / g immediately prior to encapsulation as determined by the Acid Number Determination Method described herein, and the shell comprises a polymeric material, the polymeric material comprising a (meth)acrylate material; and a consumer product adjuvant.
[0129] B. The consumer product composition of paragraph A, wherein the fragrance is characterized by an acid number immediately prior to encapsulation of greater than about 5.25 mg / KOH, or greater than about 5.50 mg / KOH, or greater than about 5.75 mg / KOH, or greater than about 6.0 mg / KOH.
[0130] C. The consumer product composition of paragraph A or B, wherein the fragrance comprises from about 30% to about 75% by weight, or from about 35% to about 70% by weight, or from about 40 to about 60% by weight of the aldehyde compound, ester compound, or mixture thereof, of the total fragrance in the core immediately after formation of the encapsulation body.
[0131] D. The consumer product composition of any one of paragraphs A-C, wherein the fragrance comprises a material selected from the group consisting of: an aliphatic aldehyde and / or acetal thereof; an alicyclic aldehyde; an aromatic and / or araliphatic aldehyde; an aliphatic, aromatic, or araliphatic ester; a lactone; or mixtures thereof.
[0132] E. The core is a partitioning modifier, preferably vegetable oil, modified vegetable oil, C4-C 24 The consumer product composition of any one of paragraphs A-D, further comprising a partitioning modifier selected from the group consisting of mono-, di-, and tri-esters of fatty acids, isopropyl myristate, dodecanophenone, lauryl laurate, methyl behenate, methyl laurate, methyl palmitate, methyl stearate, and mixtures thereof, more preferably isopropyl myristate.
[0133] F. The consumer product composition of any one of paragraphs A-E, wherein the polymeric material of the shell is formed at least in part by a radical polymerization process.
[0134] G. The consumer product composition of any one of paragraphs A-F, wherein the (meth)acrylate material is selected from the group consisting of polyacrylates, polyethylene glycol acrylates, polyurethane acrylates, epoxy acrylates, polymethacrylates, polyethylene glycol methacrylates, polyurethane methacrylates, epoxy methacrylates, and mixtures thereof.
[0135] H. The consumer product composition of any one of paragraphs A-G, wherein the (meth)acrylate material is derived from a material comprising one or more multifunctional acrylate moieties, preferably the multifunctional acrylate moieties are selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, pentafunctional acrylates, hexafunctional acrylates, heptafunctional acrylates, and mixtures thereof.
[0136] I. The consumer product composition of any one of paragraphs A-H, wherein the (meth)acrylate material is derived from a monomer selected from a hexafunctional acrylate, triacrylate, or mixtures thereof, preferably a hexafunctional aromatic acrylate, isocyanurate triacrylate, or mixtures thereof, more preferably a hexafunctional aromatic urethane acrylate, tris(2-hydroxyethyl)isocyanurate triacrylate, or mixtures thereof.
[0137] J. The consumer product composition of any one of paragraphs AI, wherein the inclusion bodies are characterized by a volume-weighted median diameter of about 10 to about 100 micrometers.
[0138] K. The consumer product composition of any one of paragraphs A-J, wherein the consumer product adjunct comprises a material selected from the group consisting of surfactants, conditioning actives, deposition aids, rheology modifiers or structurants, bleaching systems, stabilizers, builders, chelating agents, dye transfer inhibitors, dispersants, enzymes and enzyme stabilizers, catalytic metal complexes, polymeric dispersants, clay and stain removal / anti-redeposition agents, brighteners, suds suppressors, silicones, hueing agents, aesthetic dyes, additional fragrances and fragrance delivery systems, structural elastomers, carriers, hydrotropes, processing aids, anti-agglomerating agents, coatings, formaldehyde scavengers, pigments, and mixtures thereof.
[0139] L. The consumer product composition of any one of paragraphs A-K, wherein the consumer product adjunct comprises a surfactant, preferably the surfactant is selected from anionic surfactants, nonionic surfactants, zwitterionic surfactants, cationic surfactants, amphoteric surfactants, and combinations thereof, more preferably the surfactant comprises an anionic surfactant.
[0140] M. The consumer product composition of any one of paragraphs A-L, wherein the consumer product adjunct comprises a conditioning active, preferably a conditioning active selected from a quaternary ammonium ester compound, a silicone, or a combination thereof.
[0141] N. The consumer product composition of any one of paragraphs A-M, wherein the consumer product composition is in the form of a liquid composition, a granular composition, a single-compartment pouch, a multi-compartment pouch, a dissolving sheet, a lozenge or bead, a fibrous article, a tablet, a bar, flakes, a dryer sheet, or a mixture thereof, preferably a liquid composition.
[0142] O. The consumer product composition of any one of paragraphs A-N, wherein the consumer product composition is encapsulated in a water-soluble film.
[0143] P. The consumer product composition of any one of paragraphs A-O, wherein the consumer product composition is a laundry detergent composition, a fabric conditioning composition, a laundry additive, a fabric pretreatment composition, a fabric deodorizing composition, a dishwashing composition, a hard surface cleaning composition, an air care composition, a car care composition, a hair treatment product, a skin care product, a shaving care product, a personal cleansing product, a deodorant product, an antiperspirant product, or a mixture thereof.
[0144] Q. The fragrance in question is 2,6-dimethyl-octanal; 2,2,5-trimethyl-4-hexenal; Scentenal; 2-phenyl-3-(2-furyl)prop-2-enal; (l)-citronellal; tetrahydrogeranial; 2-ethoxybenzaldehyde; 5-methylfurfural; calypsone; d-xylose; 3-(2-furanyl)-2-methyl-2-propenal; 3,5,5-trimethylhexanal; Canthoxal hoxal;2,4,5-Trimethoxybenzaldehyde;4-Hydroxy-3-methoxy-cinnamaldehyde;2,4,6-Trimethoxybenzaldehyde;3,4,5-Trimethoxybenzaldehyde;2,3,4-Trimethoxybenzaldehyde;(d)-Citronellal;Lyral;Methyloctylacetaldehyde;Octanal, 3,7-dimethyl-;Adoxal;Citronellyloxyacetaldehyde;cis-3-Hexenyloxyacetaldehyde Aldehydes;Methoxymelonal;n-Hexanal;Pentylvanillin;o-Methoxycinnamaldehyde;o-Anisaldehyde;Octanal;Nonaldehyde;2,6,10-Trimethylundecanal;Citronellal;Melonal;Hydroxycitronellal;Prenal;Methylnonylacetaldehyde;Valeraldehyde;Caprylaldehyde;p-Anisaldehyde;Heptaldehyde;Ethyl vanillin;Vanillin;Heliotropin;Heliotropin Alcohol; Veratraldehyde; Methoxycitronellal; 7-Methoxy-3,7-dimethyloctanal; 4-Ethoxybenzaldehyde; Vanillin isobutyrate; Vanillin acetate; Ethyl vanillin acetate; 1-Methyl-4-(4-methyl-3-penten-1-yl)-3-cyclohexene-1-carboxaldehyde; 8-Undecenal; trans,trans-2,4-nonadienal; beta-Sinensal; 6-Cyclopentylidenehexanal; Precyclemone B; Tangerinal; 2-Thiophenecarboxaldehyde; 9-Decenal; trans-2,cis-6-nonadienal; Acalea; 4-tert-Butylbenzaldehyde;trans-2-Methyl-2-octenal;Citral;3-Methyl-5-phenyl-1-pentanal;2-Decenal;trans-2-Decenal;α,4-Dimethylbenzenepropanal;cis-5-octenal;cis-7-decen-1-al;cis-4-decen-1-al;2-trans-6-cis-dodecadienal;2-trans-4-trans-dodecadienal;3-Cyc 2-Nonen-1-al;2-Undecenal;2,4-Decadienal, (E,E)-;2,4-Undecadienal, (E,E)-;Isohexenylcyclohexenylcarboxaldehyde;trans-2-Nonen-1-al;3-Nonylacrolein;2,6-Nonadienal;Lilial;2-Trans-6-Trans-Nonadienal Al; alpha-sinensal; Bourgeonal; 2-Tridecenal; pt-butylphenylacetaldehyde; (Z)-3-dodecenal; m-methylbenzaldehyde; Mefloral; trans-4-decen-1-al; Silvial; 2-hexen-1-al; 2,4-nonadienal; Floralozone; Aldehyde C-11; cis-3-hexenal; Myristaldehyde; Cinnamic aldehyde; p-Tolualdehyde; Undecanal; 10-Undecenal; Lauraldehyde; trans-2-hexenal; Geranial; 5-methyl-2-thiophenecarboxaldehyde; Phenylacetaldehyde; alpha-amylcinnamaldehyde; Floral Super Super); hexyl cinnamic aldehyde; alpha-methyl cinnamaldehyde; benzaldehyde; or mixtures thereof; preferably selected from the group consisting of Scentenal; Adoxal; Ocatanal; Nonaldehyde; Melonal; Methyl nonylacetaldehyde; p-anisaldehyde; Ethyl vanillin; Vanillin; Heliotropin; Lilial; Aldehyde C-11; Undecanal; 10-Undecenal; Lauraldehyde;or mixtures thereof;
[0145] R. The fragrance may be: Quincester; Selenolide; Nirvanolide; Acetalol; Alpinofix; Aladinate; Methyl Laitone; Firascone; 1-Hepten-1-ol, 1-acetate; (Z)-3-Hepten-1-yl acetate; 3-Hydroxy-4,5-dimethyl-2(5H)-furanone; Isoamyl undecylenate; Verdox HC; Pivarose Q; Citryl acetate; (E)-5-Tangerinol; (Z)-5-Tangerinol; Myraldil acetate; Geranyl phenyl acetate; Bergapten; Isopimpinellin; Parsol MCX MCX;Ethyl beta-safranate;Nopyr acetate;Calyxol;Methyl octalactone;Isopregyl acetate;Ethyl tiglate;Vanoris;Acetoxymethyl-isolongifolene (isomers);1-Oxaspiro[2.5]octane-2-carboxylic acid, 5,5,7-trimethyl-, ethyl ester;3,6-Dimethyl-3-octanyl acetate;cis-3-Hexenyl-cis-3-hexenoate;cis-3-Hex Cenyl lactate; Sclareolide; Hexarose; Cis-isoambrettolide; Frutinat; Ethyl gamma-saffronate; Amyl cinnamate; Isoambrettolide; Bornyl isobutyrate; Cyprisate; Anapear; Montaverdi; Vertosine; Isobornyl isobutyrate; Cyprisate Ci Ci); Cyclobutanate; cis-3-Hexenyl Butyrate; Geranyl Tiglate; trans-Hedione; Isoamyl Acetate; Givescone; Cyclogalbanate; Verdural B Extra; Ethyl Alpha-Saffranate; Jasmal; Styrallyl Acetate; Nonalactone; trans-Ambrettolide; Furfuryl Heptanoate; Furfuryl Hexanoate;Alpha-amyl cinnamyl acetate;Carbyl acetate;Ethyl isobutanoate;Citronellyl isobutyrate;Furfuryl octanoate;Octyl 2-furoate;Cedryl acetate;Isoamyl acetoacetate;Cis-3-hexenyl benzoate;Phenylethyl benzoate;Hexenyl tiglate;Agrumea;Gamma-undecalactone (racemic);(S)-Gamma-undecalactone;(R)-Gamma-undecalactone;Phenyl benzoate;Geranyl benzoate;Salicyl Isobutyl acetate;Isoamyl salicylate;Verdox;2-Acetoxy-3-butanone;Geranyl caprylate;(+)-D-Menthyl acetate;Prenyl benzoate;7-Methoxycoumarin;cis-3-Hexenyl 2-methylbutyrate;cis-3-Hexenyl-trans-2-hexenoate;Ethyl valerate;n-Pentyl butyrate;Ethyl 3-hydroxybutyrate;Furol acetate;Hexyl neopentanoate;Decyl propionate;Phenethyl tiglate;2-Phenyl-1 (2) Propenyl-1 ester; Methyl cyclopentylidene acetate; Isononyl acetate; p-Cresyl crotonate; Octahydrocoumarin; Methyl trans-2,cis-4-decadienoate; 3,3,5-Trimethylcyclohexyl acetate; Hexyl vanillate; cis-3-Hexenyl levulinate; Dimethyl anthranilate; Methyl 2-methylbutyrate; Butyl salicylate; Isomenthyl acetate; Dihydrocarveol acetate; Tetrahydrolinalyl acetate; Dimethyloctahydro and mixtures thereof; preferably selected from the group consisting of methyl methyl acetate; methyl cis-4-octenoate; hexahydro-3,5,5-trimethyl-3,8a-ethano-8aH-1-benzopyran-2(3H)-one; cyclohexyl ethyl acetate; alpha-acetoxystyrene; p-methylbenzyl acetate; heptyl propionate; gamma-dodecalactone; neryl isobutyrate; geranyl isobutyrate; hexyl isobutyrate; methyl geranate; or mixtures thereof; preferably selected from the group consisting of methyl laitone; Verdox HC; ethyl beta-saffronate; hexarose; cyclobutanate; cyclogalbanate; ethyl alpha-saffronate; Jasmal;The consumer product composition of any one of paragraphs A-Q, comprising one or more ester perfume raw materials selected from styrallyl acetate; nonalactone; gamma-undecalactone (racemic); Verdox; furol acetate; or mixtures thereof.
[0146] S. A method of treating a surface or article with the consumer product composition of any one of paragraphs A-R, the method comprising contacting the surface or article with the consumer product composition, optionally in the presence of water.
[0147] Test Method Extraction of inclusion bodies from the final product Unless otherwise indicated herein, the preferred method for isolating inclusion bodies from a final product is based on the fact that the density of most such inclusion bodies differs from that of water. The final product is mixed with water to dilute and / or release the inclusion bodies. The diluted product suspension is centrifuged to accelerate the separation of the inclusion bodies. Such inclusion bodies tend to float or sink in the diluted solution / dispersion of the final product. Using a pipette or spatula, the top and bottom layers of this suspension are removed and subjected to further rounds of dilution and centrifugation to separate and concentrate the inclusion bodies. The inclusion bodies are observed using an optical microscope equipped with a cross-polarization filter or differential interference contrast (DIC) at combined magnifications of 100x and 400x. Microscopic observation provides an early indication of the presence, size, quality, and aggregation of inclusion bodies.
[0148] To extract the inclusion bodies from the liquid fabric enhancer, the final product is subjected to the following steps: 1. Place three approximately 20 mL aliquots of the liquid fabric strengthener into three separate 50 mL centrifuge tubes, dilute each with aliquot:deionized water at a 1:1 ratio (e.g., 20 mL fabric strengthener + 20 mL deionized water), mix each aliquot well, and centrifuge each aliquot for 30 minutes at approximately 10,000 x g. 2. After the centrifugation in step 1, discard the bottom aqueous layer (approximately 10 mL) in each 50 mL centrifuge tube, and then add 10 mL of deionized water to each 50 mL centrifuge tube. 3. Repeat the process of centrifugation, removal of the bottom aqueous layer, and then adding 10 mL of deionized water to each 50 mL centrifuge tube two more times for each aliquot. 4. Remove the top layer with a spatula or pipette. 5. Transfer this top layer to a 1.8 mL centrifuge tube and centrifuge at approximately 20,000 x g for 5 minutes. 6. Remove the top layer with a spatula and transfer to a new 1.8 mL centrifuge tube, add deionized water until the tube is completely filled, then centrifuge at approximately 20,000 x g for 5 minutes. 7. Remove the bottom layer with a fine pipette, add deionized water until the tube is completely filled, and centrifuge at approximately 20,000 x g for 5 minutes. 8. Repeat step 7 five more times (total of six times).
[0149] If both the top and bottom layers appear rich in inclusion bodies in step 1 above, proceed immediately to step 3 (i.e., skip step 2) and proceed with steps 4-8. Once these steps are complete, use a spatula and / or pipette to remove the bottom layer from the 50 mL centrifuge tube from step 1. Transfer the bottom layer to a 1.8 mL centrifuge tube and centrifuge at approximately 20,000 x g for 5 minutes. Remove the bottom layer in the new tube, add deionized water until the tube is completely filled, and then centrifuge at approximately 20,000 x g for 5 minutes. Remove the top layer (water) and add deionized water until the tube is again full. Repeat this five more times (for a total of six times). The isolated top and bottom layers, rich in inclusion bodies, are recombined.
[0150] If the fabric enhancer is white or the inclusion-rich layer is difficult to distinguish, add 4 drops of a dye (such as Liquitint Blue JH 5% premix from Milliken & Company, Spartanburg, South Carolina, USA) to the centrifuge tube from step 1 and proceed with isolation as described.
[0151] To extract inclusion bodies from solid end products that disperse readily in water, 1 L of deionized water is mixed with 20 g of the end product (e.g., detergent foams, films, gels, and granules; or water-soluble polymers; soap flakes and bars; and other water-soluble matrices such as salt, sugar, clay, and starch). When extracting inclusion bodies from end products that do not disperse readily in water, such as waxes, dryer sheets, dryer bars, and greasy materials, it may be necessary to add detergent to the product and diluent, and to stir and / or gently heat the product to release the inclusion bodies from the matrix. The use of organic solvents or drying of the inclusion bodies during the extraction process should be avoided, as these operations may damage the inclusion bodies during this process.
[0152] For extraction of inclusion bodies from liquid final products that are not fabric softeners or fabric enhancers (e.g., liquid laundry detergent, liquid dishwashing detergent, liquid hand soap, lotion, shampoo, conditioner, and hair dye), 20 mL of the final product is mixed with 20 mL of deionized water. NaCl (e.g., 100-200 g NaCl) may be added to the diluted suspension, if necessary, to increase the density of the solution and promote floating of the inclusion bodies to the top layer. If the product has a white color that makes it difficult to distinguish the layers of inclusion bodies formed during centrifugation, a water-soluble dye may be added to the diluent to provide visual contrast.
[0153] The water / product mixture is subjected to successive rounds of centrifugation, involving removal of the top and bottom layers and resuspension of those layers in fresh diluent, followed by further centrifugation, isolation, and resuspension. Each round of centrifugation is performed in tubes ranging from 1.5 to 50 mL in volume, using a centrifugal force of up to 20,000 × g for 5 to 30 minutes. At least six rounds of centrifugation are typically required to extract and purify enough inclusion bodies for testing. For example, the first round of centrifugation may be performed in a 50 mL tube spun at 10,000 × g for 30 minutes, followed by five more rounds of centrifugation, in which material from the top and bottom layers is separately resuspended in fresh diluent in 1.8 mL tubes and spun at 20,000 × g for 5 minutes per round.
[0154] If inclusion bodies are observed microscopically in both the top and bottom layers, the inclusion bodies from these two layers are recombined after a final centrifugation step to create a single sample containing all of the delivered inclusion bodies extracted from the product. The extracted inclusion bodies should be analyzed as soon as possible, but may be stored as a deionized water suspension for up to 14 days before analysis.
[0155] Those skilled in the art will recognize that various other protocols can be developed to extract and isolate inclusion bodies from the final product, and that such methods require validation through comparison of measurements taken before and after adding and extracting the inclusion bodies from the final product.
[0156] viscosity The viscosity of the final liquid product is measured using an AR550 rheometer / viscometer from TA instruments (New Castle, DE, USA) using parallel steel plates with a diameter of 40 mm and a gap size of 500 μm. -1 High shear viscosity at 0.05 seconds -1 The low shear viscosity at 21°C for 3 minutes is 0.1 s -1 ~25 seconds -1 is obtained from a logarithmic shear rate sweep.
[0157] Inclusion shell thickness The shell thickness of inclusion bodies is measured in nanometers for 50 inclusion bodies using freeze-fracture cryo-scanning electron microscopy (FF cryoSEM) at 50,000x to 150,000x magnification. Samples are prepared by flash-freezing a small amount of inclusion body suspension or final product. Flash-freezing can be achieved by immersion in liquid ethane or by using equipment such as the High Pressure Freezer Model 706802 EM Pact (Leica Microsystems, Wetzlar, Germany). Frozen samples are fractured at -120°C, then cooled to below -160°C, and lightly sputter-coated with gold / palladium. These steps can be accomplished using cryopreparation equipment such as those manufactured by Gatan Inc. (Pleasanton, CA, USA). The frozen, fractured, and coated samples are then transferred to a suitable cryo-SEM microscope, such as a Hitachi S-5200 SEM / STEM (Hitachi High-Tech, Tokyo), at temperatures below -170°C. On the Hitachi S-5200, imaging is performed at an accelerating voltage of 3.0 KV and a tip emission current of 5 μA to 20 μA.
[0158] To create a representative sample of the size distribution of inclusion bodies present, images of the fractured shells from 50 randomly selected, size-unbiased, benefit-delivery inclusion bodies are obtained in cross section. The shell thickness of each of the 50 inclusion bodies is measured using calibrated microscope software by drawing a measurement line perpendicular to the outer surface of the inclusion shell. The 50 independent shell thickness measurements are recorded and used to calculate the average thickness and the percentage of inclusion bodies having a shell thickness within the claimed range.
[0159] Fragrance and Fragrance Raw Materials (PRM) Gas chromatography with mass spectrometry / flame ionization detector (GC-MS / FID) is used to identify and quantify the weight of the fragrance, fragrance ingredients, or fragrance raw materials (PRM) encapsulated in the delivery agent encapsulation. Suitable equipment includes an Agilent Technologies G1530A GC / FID; a Hewlett Packard Mass Selective Device 5973; and a 5%-phenyl-methylpolysiloxane column J&W DB-5 (30 m length x 0.25 mm internal diameter x 0.25 μm film thickness). Approximately 3 g of the final product or suspension of the delivery encapsulation is weighed out and its weight is recorded. The sample is then diluted with 30 mL of deionized water and filtered through a 5.0 μm pore size nitrocellulose filter membrane. The material trapped on the filter is solubilized with 5 mL of ISTD solution (25.0 mg / L tetradecane in absolute alcohol) and heated at 60 ° C for 30 minutes. The cooled solution is filtered through a 0.45 μm pore size PTFE syringe filter and analyzed via GC-MS / FID. Three known perfume oils are used as comparative reference standards. Data analysis involves subtracting and summing the ISTD area counts from the total area counts and calculating the average response factor (RF) of the three standard fragrances. The response factor and total area counts of the fragrance encapsulated in the product are then used, along with the weight of the sample, to determine the total weight percent of each PRM in the encapsulated fragrance. PRMs are identified from their mass spectrometry peaks.
[0160] Test Method for Determining logP The logarithm of the octanol / water partition coefficient (logP) is calculated for each PRM in the fragrance mixture being tested. The logP values of individual PRMs are calculated using the Consensus logP Computational Model, version 14.02 (Linux®), available from Advanced Chemistry Development Inc. (ACD / Lab) (Toronto, Canada), which yields unitless logP values. The ACD / Labs Consensus logP Computational Model is part of the ACD / Labs model suite.
[0161] Volume-weighted median inclusion body size Inclusion body size is measured using an Accusizer 780A manufactured by Encapsulate Sizing Systems (Santa Barbara, CA). The instrument is calibrated from 0 to 300 μm using Duke inclusion body size standards. Samples for inclusion body size assessment are prepared by diluting approximately 1 g of emulsion, if measuring the volume-weighted median inclusion body size of an emulsion, or 1 g of capsule slurry, if measuring the volume-weighted median inclusion body size of finished capsules, into approximately 5 g of deionized water, and further diluting approximately 1 g of this solution into approximately 25 g of water.
[0162] Using the auto-dilution feature, approximately 1g of the most diluted sample is added to the Accusizer and the test is started. The Accusizer should read above 9200 counts / second. If the count is below 9200, additional sample should be added. The Accusizer will dilute the test sample until it reaches 9200 counts / second and begin the evaluation. Two minutes into the test, the Accusizer will display the results, including the volume-weighted median size.
[0163] The broadness index can be calculated by determining the inclusion body size beyond which 95% of the cumulative inclusion body volume is measured (95% size), the inclusion body size beyond which 5% of the cumulative inclusion body volume is measured (5% size), and the volume-weighted median size (50% size: both the inclusion body volume above and below this size are 50% of the inclusion body volume). Broadness index (5) = ((95% size) - (5% size) / 50% size).
[0164] Acid number determination To determine the acid number of a perfume material, the following method based on DIN EN ISO 660:2009-10 is followed.
[0165] Add approximately 5 g of the fragrance to be tested to a 200 mL three-necked cup and record the exact weight of the fragrance. Add 100 mL of a solvent mixture formed from equal volumes of ethanol and ethyl ether to the fragrance sample (e.g., prepare a 1 L mixture made from 500 mL of each). Add 0.3 mL of phenolphthalein solution (formed from 1.0 g of phenolphthalein in 100 mL of ethanol). Add a stir bar, place on a stir plate, and begin stirring the sample.
[0166] Add a pH probe to the sample and wait until the pH stabilizes. Neutralize the sample solution by slowly adding potassium hydroxide (0.1 M KOH) by titration until the sample reaches a pH of 7.
[0167] At this point, record the initial volume of potassium hydroxide as the initial volume. Add 0.1 M potassium hydroxide until one drop produces a pink color change that lasts for at least 15 seconds. Record the volume of potassium hydroxide as the final volume. Determine the total volume of potassium hydroxide added (e.g., the volume of KOH solution added from pH=7 to when the sample turns a persistent pink color) by determining the difference between the initial and final volumes.
[0168] Calculate the acid number (reported as mg of KOH / g of fragrance) using the following equation:
[0169]
number
[0170] It should be noted that the 5g perfume sample is merely a guideline; a larger volume may be useful for perfumes with a relatively low acid value, and a smaller volume for perfumes with a relatively high acid value. Depending on the results of the initial titration, the weight of the sample may be increased or decreased for each test repetition. Additionally, the procedure uses 0.1M KOH, but a higher molar concentration may be useful for perfumes with a relatively high acid value. The following table can be used as a rough guide:
[0171] [Table 1]
[0172] Fragrance leakage determination To determine perfume leakage, a liquid detergent with perfume encapsulates is prepared, stored (e.g., for 1 week at 35°C), and then compared to a reference sample of unencapsulated liquid detergent with an equivalent level of total perfume (e.g., 1% by weight).
[0173] To prepare the internal standard solution, weigh out 70 mg of tonalid and add 20 mL of hexane pa and mix. Add 200 μL of this mixture to 20 mL of hexane pa and mix to homogenize to form the internal standard solution.
[0174] To extract perfume from the liquid phase of the test or reference sample, place 2 grams of detergent sample and 2 mL of internal standard solution in an extraction vessel. Extract the free perfume from the detergent sample by gently inverting the extraction vessel by hand 20 times. Add a spoonful of sodium sulfate to the extraction vessel. Allow the layers to separate.
[0175] To collect gas chromatographic data, immediately after separation into layers, transfer the hexane layer to a gas chromatograph autosampler vial and cap the vial. Inject 1.5 μL of splitless into the gas chromatograph injection port. Perform gas chromatography-mass spectrometry (Durawax-4 [60 m, 0.32 mm ID, 0.25 μm film] chromatographic separation at 40 °C / 4 °C / min / 230 °C / 20 min).
[0176] Calculate the fragrance leakage from the encapsulation per fragrance raw material according to the following formula:
[0177]
number
[0178] To determine perfume retention (eg, the percentage of perfume remaining within the encapsulation), subtract the "% Perfume Leakage" from 100. [Example]
[0179] The examples provided below are intended to be illustrative and not limiting in nature.
[0180] Example 1. Exemplary Fragrances Fragrances according to the present disclosure, as well as a comparative fragrance (labeled "Comparative"), are provided in Table 1.
[0181] [Table 2] * Average of two batches
[0182] Example 2. Manufacturing process of inclusion bodies Polyacrylate fragrance capsules are made as follows: A first oil phase consisting of 37.5 g fragrance, 0.2 g tert-butylaminoethyl methacrylate, and 0.2 g beta-hydroxyethyl acrylate is mixed for approximately 1 hour, and then 18 g CN975 (Sartomer, Exter, PA) is added. The solution is allowed to mix until needed later in the process.
[0183] 65g incense FeeA second oil phase consisting of 84 g of isopropyl myristate, 1 g of 2,2'-azobis(2-methylbutyronitrile), and 0.8 g of 4,4'-azobis[4-cyanovaleric acid] is added to a jacketed steel reactor. The reactor is maintained at 35°C and the oil solution is mixed at 500 rpm using a 2" flat blade mixer. A nitrogen blanket is applied to the reactor at a rate of 300 cc / min. The solution is heated to 70°C in 45 minutes, held at 70°C for 45 minutes, and then cooled to 50°C in 75 minutes. At 50°C, the first oil phase is added and the combined oil is mixed at 50°C for an additional 10 minutes.
[0184] An aqueous phase containing 85 g of 5% solids Selvol 540 polyvinyl alcohol (Sekisui Specialty Chemicals, Dallas, TX), 268 g of water, 1.2 g of 4,4′-azobis[4-cyanovaleric acid], and 1.1 g of 21.5% NaOH was prepared and mixed until the 4,4′-azobis[5-cyanovaleric acid] was dissolved.
[0185] Once the oil phase temperature has dropped to 50°C, mixing is stopped and the water phase is added to the oil mix. High shear agitation is applied to produce an emulsion with the desired size characteristics (1900 rpm for 60 minutes).
[0186] The temperature is increased to 75°C in 30 minutes, held at 75°C for 4 hours, increased to 95°C in 30 minutes and held at 95°C for 6 hours.
[0187] Example 3. Inclusion body leakage To test for leakage, various fragrances are encapsulated in shells comprising polyacrylate materials (including CN975 from Sartomer, Inc.) generally according to the encapsulation process described in Example 2. In addition to the fragrances provided below, the encapsulation cores contain about 30% to about 45% of a partitioning modifier (i.e., isopropyl myristate).
[0188] The encapsulated bodies are added to a liquid detergent composition containing no other perfume. The encapsulated bodies are added at a level that provides a total of 1% perfume by weight of the detergent composition. The liquid detergent formulation is provided in Table 2 below.
[0189] [Table 3]
[0190] The liquid detergent samples are allowed to age for one week at 35°C. After storage, the samples are analyzed for perfume leakage via hexane extraction as detailed in the Test Methods section above. Leakage is measured against a reference sample containing 1% by weight of the same unencapsulated perfume.
[0191] The fragrances tested were some of those provided in Example 1, Table 1 above. Tests 1-5 represent encapsulated bodies containing comparative fragrances characterized by an acid value of less than 5.0 mg KOH / g. Tests 6-9 represent encapsulated bodies containing fragrances according to the present disclosure characterized by an acid value of greater than 5.0 mg KOH / g.
[0192] The perfume leakage results are shown in Table 3. Figure 1 shows a graph of perfume retention versus acid number, measured as the percentage of perfume remaining within the encapsulation.
[0193] [Table 4] * Average of two samples ** Average of three samples
[0194] The results in Table 3 and Figure 1 show that perfume encapsulations containing polyacrylate materials within the encapsulation shell leak relatively little during storage in detergent products, even when the perfume is characterized by an acid value greater than 5.0 mg KOH / g.
[0195] Tested at a variety of temperatures and timings, this trend is in stark contrast to that disclosed in WO 2017 / 148504, which shows that very little perfume is retained within the capsules when the perfume is characterized by an acid number greater than 5 mg KOH / g perfume. Without being bound by theory, it is believed that the selection of the encapsulation body wall material (here, a polyacrylate material) contributes to the relative stability of the encapsulations of the present disclosure.
[0196] Dimensions and values disclosed herein should not be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."
[0197] All documents cited herein, including any cross-referenced or related patents or patent applications, and any patent applications or patents to which this application claims priority or benefit, are incorporated herein by reference in their entirety, unless expressly stated to the contrary. The citation of any document shall not be deemed to be prior art to any invention disclosed or claimed herein, or to teach, suggest, or disclose such invention, either alone or in combination with any other reference(s). Furthermore, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.
[0198] While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
Claims
1. 1. A liquid detergent composition comprising: An encapsulation body comprising a core and a shell surrounding the core, the core comprises a flavoring agent and a distribution modifier; The fragrance is characterized in that the acid value, as determined by the acid value determination method described in the present specification and represented by the following formula, is greater than 5.0 mgKOH / g and less than 25 mgKOH / g immediately before encapsulation, and the fragrance contains an aldehyde compound, an ester compound, or a mixture thereof in an amount of 30% by weight to 75% by weight of the total fragrance in the core immediately after formation of the encapsulated body, The partitioning modifier is a vegetable oil, a modified vegetable oil, C 4 ~C 24 selected from the group consisting of mono-, di-, and tri-esters of fatty acids, isopropyl myristate, dodecanophenone, lauryl laurate, methyl behenate, methyl laurate, methyl palmitate, methyl stearate, and mixtures thereof; the shell comprises a polymeric material; an encapsulant, wherein the polymeric material comprises a (meth)acrylate material, the (meth)acrylate material being derived from a hexafunctional aromatic urethane acrylate, tris(2-hydroxyethyl)isocyanurate triacrylate, or a mixture thereof; and a consumer product adjuvant. [Equation 1]
2. 10. The liquid detergent composition of claim 1, wherein the perfume is characterized by an acid number of greater than 5.25 mg KOH / g immediately prior to encapsulation.
3. 3. The liquid detergent composition according to claim 1, wherein the perfume comprises 35% to 70% by weight of the total perfume in the core immediately after formation of the encapsulated body, of an aldehyde compound, an ester compound, or a mixture thereof.
4. 4. A liquid detergent composition according to any one of claims 1 to 3, wherein the perfume comprises a material selected from the group consisting of: an aliphatic aldehyde and / or acetal thereof; a cycloaliphatic aldehyde; an aromatic and / or araliphatic aldehyde; an aliphatic, aromatic, or araliphatic ester; a lactone; or mixtures thereof.
5. The fragrance is 2,6-dimethyl-octanal; 2,2,5-Trimethyl-4-hexenal; Scentenal; 2-Phenyl-3-(2-furyl)prop-2-enal; (1)-Citronellal; Tetrahydrogeranial; 2-Ethoxybenzaldehyde; 5-Methylfurfural; Calypsone; d-Xylose; 3-(2-Furanyl)-2-methyl-2-propenal; 3,5,5-Trimethylhexanal; Canthoxal; 2,4,5-Trimethoxy-benzaldehyde; 4-Hydroxy-3-methoxy-cinnamaldehyde; 2,4,6-trimethoxybenzaldehyde; 3,4,5-trimethoxybenzaldehyde; 2,3,4-Trimethoxy-benzaldehyde; (d)-citronellal; lyral; methyloctylacetaldehyde; octanal, 3,7-dimethyl-; adoxal; citronellyloxyacetaldehyde; cis-3-hexenyloxyacetaldehyde; methoxymelonal; n-hexanal; pentylvanillin; o-methoxycinnamaldehyde; o-anisaldehyde; octanal; nonaldehyde; 2,6,1 0-Trimethylundecanal; Citronellal; Melonal; Hydroxycitronellal; Prenal; Methylnonylacetaldehyde; Valeraldehyde; Caprylaldehyde; p-Anisaldehyde; Heptaldehyde; Ethyl vanillin; Vanillin; Heliotropin; Helional; Veratraldehyde; Methoxycitronellal; 7-Ethoxy-3,7-dimethyloctanal; 4-Ethoxybenzaldehyde; Vanillin isobutyrate; Vanillin acetate; Ethyl vanillin acetate; 1-methyl-4-(4-methyl-3-penten-1-yl)-3-cyclohexene-1-carboxaldehyde; 8-undecenal; trans,trans-2,4-nonadienal; beta-sinensal; 6-cyclopentylidenehexanal; precyclemone B B); tangerinal; 2-thiophenecarboxaldehyde; 9-decenal; trans-2,cis-6-nonadienal; acalea; 4-tert-butylbenzaldehyde; trans-2-methyl-2-octenal; citral; 3-methyl-5-phenyl-1-pentanal; 2-decenal; trans-2-decenal; alpha,4-dimethylbenzenepropanal; cis-5-octenal; cis-7-decen-1-al; cis-4-decen-1-al; 2-trans-6-cis-dodecadienal; 2-trans-4-trans-dodecadienal; 3-cyclohexene-1-propanal; 2-nonen-1-al; 2-Undecenal; 2,4-Decadienal, (E,E)-; 2,4-Dondecadienal, (E,E)-; Isohexenylcyclohexenylcarboxaldehyde; trans-2-Nonen-1-al; 3-Nonylacrolein; 2,6-Nonadienal; Lilial; 2-Trans-6-Trans-Nonadienal; Alpha-Sinensal; Bourgeonal; 2-Tridecenal; p-t-Butylphenylacetaldehyde; (Z)-3-Dodecenal; m-Methylbenzaldehyde; Miflora and / or comprising one or more aldehyde perfume raw materials selected from the group consisting of: mefloral; trans-4-decen-1-al; silvial; 2-hexen-1-al; 2,4-nonadienal; floralozone; aldehyde C-11; cis-3-hexenal; myristaldehyde; cinnamic aldehyde; p-tolualdehyde; undecanal; 10-undecenal; lauraldehyde; trans-2-hexenal; geranial; 5-methyl-2-thiophenecarboxaldehyde; phenylacetaldehyde; alpha-amylcinnamaldehyde; floral super; hexylcinnamaldehyde; alpha-methylcinnamaldehyde; benzaldehyde; and mixtures thereof. The fragrance may be selected from the group consisting of quincester, selenolide, nirvanolide, acetalol, alpinofix, aladinate, methyl laitone, firascone, 1-hepten-1-ol, 1-acetate, (Z)-3-hepten-1-yl acetate, 3-hydroxy-4,5-dimethyl-2(5H)-furanone, isoamyl undecylenate, Verdox HC, Pivarose Q, citryl acetate, (E)-5-tangerinol, (Z)-5-tangerinol, mirardil acetate, phenylgeranyl acetate, bergapten, isopimpinellin, Parsol MCX, MCX); Ethyl beta-safranate; Nopyr acetate; Calyxol; Methyl octalactone; Isopregyl acetate; Ethyl tiglate; Vanoris; Acetoxymethyl-isolongifolene (isomers); 1-Oxaspiro[2.5]octane-2-carboxylic acid, 5,5,7-trimethyl-, ethyl ester; 3,6-Dimethyl-3-octanyl acetate; cis-3-hexenyl-cis-3-hexenoate; cis-3-hexenyl lactate; Sclareolide; Hexarose; cis-iso-ambrettolide; Frutinat; Ethyl gamma-saffranate; Amyl cinnamate; Isoambrettolide; Bornyl isobutyrate; Cyprisate; Anapear; Montaverdi; Vertosine; Isobornyl isobutyrate; Cyprisate ci; Cyclobutanate; cis-3 hexenyl butyrate; Geranyl tiglate; trans-hedione; Isoamyl acetate; Givescone; Cyclogalbanate; Verdural B Extra extra); Ethyl alpha-saffronate; Jasmal; Styrallyl acetate; Nonalactone; Trans-ambrettolide; Furfuryl heptanoate; Furfuryl hexanoate; Alpha-amyl cinnamyl acetate; Carbyl acetate; Ethyl isobutanoate; Citronellyl isobutyrate; Furfuryl octanoate; Octyl 2-furoate; Cedryl acetate; Isoamyl acetoacetate; cis-3-hexenyl benzoate; Phenylethyl benzoate; Hexenyl tiglate; Agrumea; Gamma-undecalactone (racemic); (S)-gamma-undecalactone; (R)-gamma-undecalactone; Phenyl benzoate Nyl; Geranyl benzoate; Isobutyl salicylate; Isoamyl salicylate; Verdox; 2-Acetoxy-3-butanone; Geranyl caprylate; (+)-D-Menthyl acetate; Prenyl benzoate; 7-Methoxycoumarin; cis-3-Hexenyl 2-methylbutyrate; cis-3-Hexenyl-trans-2-hexenoate; Ethyl valerate; n-Pentyl butyrate; Ethyl 3-hydroxybutyrate; Furacetate; Hexyl neopentanoate; Decyl propionate; Phenethyl tiglate; 2-Phenyl-1(2)propenyl-1-ester; Methylcyclopentylidene acetate; Isononyl acetate; p-Cresyl crotonate; Octahydrocoumarin;Methyl trans-2,cis-4-decadienoate; 3,3,5-trimethylcyclohexyl acetate; Hexyl vanillate; cis-3-hexenyl levulinate; Dimethyl anthranilate; Methyl 2-methylbutyrate; Butyl salicylate; Isomenthyl acetate; Dihydrocarveol acetate; Tetrahydrolinalyl acetate; Dimethyloctanyl acetate; Methyl cis-4-octenoate; Hexahydro-3 ,5,5-trimethyl-3,8a-ethano-8aH-1-benzopyran-2(3H)-one; cyclohexyl ethyl acetate; alpha-acetoxystyrene; p-methylbenzyl acetate; heptyl propionate; gamma-dodecalactone; neryl isobutyrate; geranyl isobutyrate; hexyl isobutyrate; methyl geranate; and mixtures thereof; The liquid detergent composition according to any one of claims 1 to 4.
6. A liquid detergent composition according to any one of claims 1 to 5, wherein the partitioning modifier is isopropyl myristate.
7. A liquid detergent composition according to any preceding claim, wherein the polymeric material of the shell is at least partially formed by a radical polymerisation process.
8. A liquid detergent composition according to any one of claims 1 to 7, wherein the inclusion bodies are characterized by a volume-weighted median diameter of 10 to 100 micrometers.
9. 9. The liquid detergent composition of any one of claims 1 to 8, wherein the consumer product adjunct comprises a material selected from the group consisting of surfactants, conditioning actives, deposition aids, rheology modifiers or structurants, bleaching systems, stabilizers, builders, chelating agents, dye transfer inhibitors, dispersants, enzymes and enzyme stabilizers, catalytic metal complexes, polymeric dispersants, clay and soil removal / anti-redeposition agents, brighteners, suds suppressors, silicones, hueing agents, aesthetic dyes, additional perfumes and perfume delivery systems, structural elastomers, carriers, hydrotropes, processing aids, anti-clumping agents, coatings, formaldehyde scavengers, pigments, and mixtures thereof.
10. 10. A method of treating a surface or an article with a liquid detergent composition according to any one of claims 1 to 9, said method comprising the step of contacting said surface or article with said liquid detergent composition, optionally in the presence of water.
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