Fragrance concentrate and uses thereof

Abstract

The present disclosure describes a water-soluble solid fragrance concentrate comprising polyethylene glycol, one or more nonionic surfactants, and a perfume mixture, which may be combined with water-soluble tablet products to increase fragrance delivery in cases in which the amount of fragrance ingredients may be limited in the tablet product. This allows for the addition of fragrance separated from the functionality of water-soluble tablet products useful in various applications, such as all-purpose cleaner tablets, toilet cleaner tablets, laundry detergent and dishwasher detergent tablets, among others.

Description

[0001] Firmenich SA

[0002] FRAGRANCE CONCENTRATE AND USES THEREOF

[0003] Field of the Disclosure

[0004] The present disclosure relates to the field of perfumery. The present disclosure describes a high fragrance loading carrier formulation that can be combined with water-soluble tablet products in which the amount of fragrance ingredients may be limited in the tablet product. The high fragrance loading carrier formulation allows for the addition of fragrance separated from the functionality of water-soluble tablet products useful in various applications, such as all-purpose cleaner tablets, toilet cleaner tablets, laundry detergent and dishwasher detergent tablets, among others.

[0005] Background of the Disclosure

[0006] Fragrances play an important role in the perception of consumer product performance and thus they often determine the consumer's choice for a given product. In some consumer products, such as detergents, hard surface cleaners, air fresheners, and the like, fragrances as free oils are solubilized in liquids, typically in alcohol-based solutions or in water-based solutions with surfactants, in order to deliver a pleasant odor to the surrounding air, to fabrics, or to other various surfaces. In some cases, fragrances may be encapsulated in microcapsules and suspended in liquid solvent. However, the volume of the solvents used is often much larger than the volume of fragrance, leading to increased concerns around sustainability and consumer demand for environmental friendliness.

[0007] Tablet products that can be dissolved and / or diluted in solvents at the point of use are suitable alternatives for overcoming the challenges of manufacturing products with large amounts of solvents and the high costs of transporting large volumes of products. However, a problem for tablet products is the reduced amount of fragrance that can be incorporated into a tablet. Dissolvable / dilutable tablet products are often limited in their fragrance dosage, due to the tablet requiring a given consistency and dilution mechanism in the final product form and for production. In cases where higher fragrance dosages are required or desired, this cannot be achieved by compromising the above capabilities.Firmenich SA

[0008] Therefore, there is an ongoing need for compositions that can increase fragrance loading of a dilutable tablet product without compromising the physical aspects of the final tablet product.

[0009] Summary of the Disclosure

[0010] The following aspects of the present disclosure seek to address one or more of the problems described hereinabove.

[0011] In a first aspect, the present disclosure relates to a water-soluble solid fragrance concentrate comprising:

[0012] i) polyethylene glycol,

[0013] ii) one or more nonionic surfactants, and

[0014] iii) a perfume mixture.

[0015] In a second aspect, the present disclosure relates to a water-soluble solid composition comprising:

[0016] a) the water-soluble solid fragrance concentrate described herein; and b) a water-soluble solid freshening, cleaning, or detergent composition in the form of a tablet;

[0017] wherein the water-soluble solid fragrance concentrate and the water-soluble solid freshening, cleaning, or detergent composition are not mixed, and wherein the water-soluble solid fragrance concentrate at least partially coats the water-soluble solid freshening, cleaning, or detergent composition.

[0018] In a third aspect, the present disclosure relates to a method for increasing the amount of fragrance provided by a water-soluble solid freshening, cleaning, or detergent composition in the form of a tablet, the method comprising at least partially coating the water-soluble solid freshening, cleaning, or detergent composition with a water-soluble solid fragrance concentrate comprising polyethylene glycol, one or more nonionic surfactants, and a perfume mixture.Firmenich SA

[0019] In a fourth aspect, the present disclosure relates to a method for deodorizing, freshening, and / or cleaning a surface or an environment, the method comprising: a) dissolving the water-soluble solid composition described herein in water to form a liquid composition, and

[0020] b) applying the resulting liquid composition to the surface or dispersing the resulting liquid composition to the environment.

[0021] Detailed Description

[0022] As used herein, the terms “a”, “an”, or “the” means “one or more” or “at least one” unless otherwise stated.

[0023] While compositions and methods are described in terms of “comprising,” “containing,” or “including” various components or steps, the compositions and methods can also “consist essentially of” or “consist of” the various components, substances and steps. As used herein the term “consisting essentially of” shall be construed to mean including the listed components, substances or steps and such additional components, substances or steps which do not materially affect the basic and novel properties of the composition or method. In some embodiments, a composition in accordance with embodiments of the present disclosure that “consists essentially of” the recited components or substances does not include any additional components or substances that alter the basic and novel properties of the composition.

[0024] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as is commonly understood by one of skill in the art to which this specification pertains.

[0025] It should be understood that any numerical range recited herein is intended to include all sub-ranges subsumed therein. For example, a range of “1 to 10” is intended to include all sub-ranges between and including the recited minimum value of 1 and the recited maximum value of 10; that is, having a minimum value equal to or greater than 1 and a maximum value of equal to or less than 10. Because the disclosed numerical ranges are continuous, they include every value between theFirmenich SA

[0026] minimum and maximum values. Unless expressly indicated otherwise, the various numerical ranges specified in this application are approximations.

[0027] As used herein, and unless otherwise indicated, the term “about” or “approximately” means an acceptable error for a particular value as determined by one of ordinary skill in the art, which depends in part on how the value is measured or determined. In certain embodiments, the term “about” or “approximately” means within 1 , 2, 3, or 4 standard deviations. In certain embodiments, the term “about” or “approximately” means within 50%, 20%, 15%, 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, or 0.05% of a given value or range.

[0028] Throughout the present disclosure, various publications may be incorporated by reference. Should the meaning of any language in such publications incorporated by reference conflict with the meaning of the language of the present disclosure, the meaning of the language of the present disclosure shall take precedence, unless otherwise indicated.

[0029] Throughout the present disclosure, various chemical names and structures may be recited. Unless otherwise stated, any stereoisomers, such as enantiomers, diastereomers, anomers, epimers, and the like; and geometric isomers, such as cis / trans or E / Z isomers, of the recited chemical name or structure are contemplated. As would be understood by those of ordinary skill in the art, stereoisomers may possess one stereocenter, giving rise to enantiomers, or more than one stereocenter, giving rise to diastereomers, each stereocenter having one of two different stereochemistries (i.e. , R or S). Enantiomers may be characterized by their ability to rotate oncoming plane-polarized light to the right, designated as dextrorotatory, “(+)” or “D”, or to the left, designated as levorotatory,

[0030]

[0031] or “L”.

[0032] Enantiomers may exist as racemic mixtures or scalemic mixtures. Geometric isomers refer to isomers in which the spatial relationship of atoms around a double bond are different, typically designated E or Z according to conventional understanding in the chemical art. Geometric isomers may also exist as mixtures of E and Z isomers. All of the aforementioned isomeric variations of the chemical names or structures recited herein are included.Firmenich SA

[0033] In the first aspect, the present disclosure relates to a water-soluble solid fragrance concentrate comprising:

[0034] i) polyethylene glycol,

[0035] ii) one or more nonionic surfactants, and

[0036] iii) a perfume mixture.

[0037] As used herein, the term “water-soluble” with respect to the solid fragrance concentrate means that the solid fragrance concentrate has a solubility of greater than 0.1 g / 100 mL, typically from 0.1 g / 100 mL to 100 g / 100 mL, in water at room temperature. In some embodiments, the solid fragrance concentrate has a solubility of from 10 g / 100 mL to 100 g / 100 mL, in water at room temperature. In an embodiment, the solid fragrance concentrate has a solubility of 1 g / 100 ml to 50 g / 100ml, in water at room temperature.

[0038] As used herein, the term “fragrance concentrate” is a composition meant to be dissolved in solution to release a pleasant and noticeable, typically long-lasting, odor on contact with water. An advantage of the fragrance concentrate of the present disclosure is that the fragrance can be provided at a much higher concentration than currently possible with standalone cleaning / functional solid formulations.

[0039] Polyethylene glycol (PEG) is commercially available in a variety of molecular weights. Suitable PEGs are those that are generally solid under ambient conditions (15 °C to 30 °C at atmospheric pressure) and can be melted at higher temperatures, for instance, in the range of from 50 to 100 °C, typically from 50 to 90 °C, into liquid form. PEGs of different molecular weights may be used alone or in combination. In an embodiment, the polyethylene glycol has a molecular weight of from 4,000 to 12,000, typically from 5,000 to 10,000, more typically from 6,000 to 8,000.

[0040] The amount of PEG in the water-soluble solid fragrance concentrate is not particularly limited. However, in some embodiments, the polyethylene glycol is present in an amount of from 50% to about 99%, typically 70% to 95%, more typically from 75% to 90%, by weight relative to the total weight of the water-soluble solid fragrance concentrate.Firmenich SA

[0041] Nonionic surfactants are known to those of ordinary skill in the art as surface active materials that do not possess charged functional groups. The one or more nonionic surfactants may be any nonionic surfactant known to those of ordinary skill in the art.

[0042] In an embodiment, the one or more nonionic surfactants is / are selected from the group consisting of sucrose esters, C8-C22 alkyl polyglucosides, ethoxylated aliphatic C6-C20 alcohols containing 2 to 30 EO and / or PO units, polyoxyethylene C -Ceo hydroxylesters containing 10 to 40 EO units, C8-C20 mono- and polyglyceryl esters, ethoxylated aliphatic C6-C20 amines containing 2 to 30 EO and / or PO units, aliphatic C6-C20 carboxylic acid alkanolamides, and any combination thereof.

[0043] Exemplary sucrose esters include, but are not limited to, sucrose esters derived from C8-C20 fatty acids, such as sucrose esters with oleic, palmitic or stearic acid, for example, a sucrose monopalmitate (e.g. Habo Monoester P90® commercialized by Compass Foods Corporation.

[0044] C8-C22 alkyl polyglucosides include, but are not limited to, fatty alcohol glucosides typically Cs-Ci6 alkyl glucosides, more typically decylglucoside (known also as Plantacare® 2000UP); C12-C16 alkyl glucosides, typically laurylglucoside (known also as Plantacare® 1200UP); Cs-Ci6 alkyl glucosides, typically cocoglucoside (known also as Plantacare® 818UP); Cs-Cw alkyl glucosides, typically caprylyl / caprylglucoside (known also as Plantacare® 810UP); or combinations thereof with a fatty acid, such as cocoglucoside and glyceryl oleate (known also as Lamesoft® PO 65 by BASF).

[0045] Exemplary ethoxylated aliphatic C6-C20 alcohols containing 2 to 30 EO and / or PO units (EO being ethyleneoxide and PO being propylene oxide) include, but are not limited to, C11-15 alcohol ethers with 9 EO units (such as Tomadol® 1-9 orTomadol® 25-9), butyl alcohol ethers with 24 to 27 EO and / or PO oxide units (such as PPG-24 Buteth-26 from Dow Chemical), phosphoric esters of three lauryl alcohol ethers with 3 EO (such as Trilaureth-4 Phosphate from Clariant), and any mixtures thereof.

[0046] Exemplary polyoxyethylene C16-60 hydroxylesters containing 10 to 40 EO units include, but are not limited to, polyoxyethylenesorbitan monooleate, typically sorbitolFirmenich SA

[0047] monoesters with oleic, myristic, stearic or palmitic acid, such as sorbitol monoester with a fatty acid that is polyethoxylated and containing 10 to 40 EO units (available under the tradename Tween® by ACROS Organics (Geel, Belgium)); polyethoxylated castor oil triglycerides containing 10 to 40 EO units, such as polyethoxylated hydrogenated castor oil (available as Cremophor® RH 40 by BASF), and any mixture thereof.

[0048] Exemplary C8-C20 mono- and polyglyceryl esters are available under the Dermofeel® series of ingredients commercialized by Evonik.

[0049] In an embodiment, the one or more nonionic surfactants comprise a polyethoxylated castor oil triglyceride containing 10 to 40 EO units, typically a polyethoxylated hydrogenated castor oil containing 40 EO units.

[0050] Exemplary ethoxylated aliphatic C6-C20 amines containing 2 to 30 EO and / or PO units include, but are not limited to, tallow amine ethoxylates, hydrogenated tallow amine ethoxylates, cocoamine ethoxylates, stearylamine ethoxylates, and oleylamine ethoxylates.

[0051] Exemplary aliphatic C6-C20 carboxylic acid alkanolamides, but are not limited to, mono- and diethanolamides of aliphatic C6-C20 carboxylic acids, such as cocam ide DEA and cocamide MEA, and mono- and diisopropanolamides of aliphatic C6-C20 carboxylic acids, such as cocoamide MIPA.

[0052] The amount of the one or more nonionic surfactants in the water-soluble solid fragrance concentrate is not particularly limited. However, in some embodiments, the one or more nonionic surfactants is present in an amount of from 1 % to about 20%, typically 1% to 10%, more typically from 2% to 5%, by weight relative to the total weight of the water-soluble solid fragrance concentrate.

[0053] The perfume mixture is a mixture comprising one or more perfumery raw materials or perfuming ingredients.Firmenich SA

[0054] As used herein, the term “perfumery raw material” refers to a compound or mixture of perfuming ingredients used in perfuming formulations or compositions to impart a hedonic effect. In other words, to be considered as a perfuming ingredient, such a perfuming ingredient must be recognized by a person skilled in the art as being capable of imparting or modifying in an active or pleasant way the odor of a composition, and not just as having an odor.

[0055] As used herein, the term “perfuming ingredient” refers to a compound, the main purpose of which is to impart or modulate odor. In other words, to be considered as a perfuming ingredient, such ingredient must be recognized by a person skilled in the art as being capable of imparting or modifying in at least an active or pleasant way the odor of a composition, and not just as having an odor. For the purposes of this disclosure, perfume accords also include combinations of perfuming ingredients with substances that collectively improve, enhance or modify the delivery of the perfuming ingredients, such as pro-perfumes, emulsions or dispersions, as well as combinations that confer benefits other than modifying or conferring odor, such as longevity, eruption, malodor counteraction, antimicrobial effect, microbial stability, insect control.

[0056] The nature and type of perfuming ingredients do not warrant a more detailed description here, which in any case would not be exhaustive, as a person of ordinary skill in the art would be able to select them based on general knowledge and according to the intended use or application and the desired organoleptic effect. In general, these perfuming ingredients belong to chemical classes as varied as alcohols, aldehydes, ketones, esters, ethers, acetates, nitriles, terpenoids, nitrogenous or sulphurous heterocyclic compounds and essential oils, and can be of natural or synthetic origin. In any event, many of these ingredients are listed in references such as the works Perfume and Flavor Chemicals, 1969, Montclair, New Jersey, USA, or other works of a newer version or similar nature, by S. Arctander, and in patent literature abundant in the field of perfumery. It should also be understood that said ingredients can also be compounds known to release in a controlled manner various types of perfuming compounds.Firmenich SA

[0057] The amount of the perfume mixture is not particularly limited. However, in some embodiments, the perfume mixture is present in an amount of from 1% to about 50%, typically 1 % to 40%, more typically from 5% to 30%, by weight relative to the total weight of the water-soluble solid fragrance concentrate. In some embodiments, the perfume mixture is present in an amount of from 1% to about 20%, typically 1% to 10%, more typically from 5% to 10%, by weight relative to the total weight of the water-soluble solid fragrance concentrate.

[0058] The water-soluble solid fragrance concentrate may optionally comprise one or more benefit agents, such as a preservative, dye, optical brightener, aversive agent, disintegrating aid, dissolution aid, processing aid, lubricant, deodorizer, chelating agent, adjuvant, or any combination thereof. In an embodiment, the water-soluble solid fragrance concentrate comprises a water-soluble dye.

[0059] The water-soluble solid fragrance concentrate may be obtained according to any method known to those of ordinary skill in the art. In one suitable method, the polyethylene glycol is heated and melted, after which the one or more nonionic surfactants is / are added to the the polyethylene glycol, and then mixed until homogeneous. The perfume mixture is then added to the polyethylene glycol and the one or more nonionic surfactants, and then mixed until homogeneous. The molten sample may then poured into a mold to be made into any desired shape, or may be poured onto a tablet comprising a water-soluble solid freshening, cleaning, or detergent composition so as to at least partially coat the tablet. The water-soluble solid fragrance concentrate is then allowed to cool and dry / solidify.

[0060] In the second aspect, the present disclosure relates to a water-soluble solid composition comprising:

[0061] a) the water-soluble solid fragrance concentrate described herein; and b) a water-soluble solid freshening, cleaning, or detergent composition in the form of a tablet;

[0062] wherein the water-soluble solid fragrance concentrate and the water-soluble solid freshening, cleaning, or detergent composition are not mixed, and wherein the water-soluble solid fragrance concentrate at least partially coats the water-soluble solid freshening, cleaning, or detergent composition.Firmenich SA

[0063] The water-soluble solid fragrance concentrate may be combined with water-soluble tablet products in which the amount of fragrance ingredients may be limited in the tablet product. The water-soluble solid fragrance concentrate described herein allows for the addition of fragrance separated from the functionality of the water-soluble tablet, which comprises a freshening, cleaning, or detergent composition. In other words, water-soluble solid fragrance concentrate and the water-soluble solid freshening, cleaning, or detergent composition form a heterogeneous product in which the water-soluble solid fragrance concentrate and the water-soluble solid freshening, cleaning, or detergent composition are not mixed. Each of component a) and b) retain their respective functionality.

[0064] Accordingly, the water-soluble solid composition comprises a first and second layer, the first layer comprising the water-soluble solid fragrance concentrate and the second layer comprising the water-soluble solid freshening, cleaning, or detergent composition.

[0065] In some embodiments, the water-soluble solid fragrance concentrate forms a layer that partially coats the tablet comprising the water-soluble solid freshening, cleaning, or detergent composition. In some embodiments, the water-soluble solid fragrance concentrate forms a shell that completely coats the tablet comprising the water-soluble solid freshening, cleaning, or detergent composition. The thickness of the layer or shell is not particularly limited and can be adjusted to provide the desired amount of fragrance depending on the application.

[0066] As used herein, a “freshening composition” refers to a composition that includes one or more perfume raw materials that may be used to eliminate or reduce malodors, impart fragrance to a surface or the air in a surrounding space and / or freshen such surface or air. A “cleaning composition” refers to a composition that includes one or more active materials suitable for cleaning a surface by dissolving or suspending unwanted grime, dirt, debris, etc. A “detergent composition” refers to a composition that includes one or more detersive actives suitable for lifting or releasing unwanted grime, dirt, debris, etc., from surfaces. The water-soluble solid freshening, cleaning, or detergent composition according to the present disclosure may include perfumeryFirmenich SA

[0067] raw materials and may additionally include water, solubilizers, surfactants, diluents, malodor reducing actives, and perfume materials.

[0068] Thus, in an embodiment, the water-soluble solid freshening, cleaning, or detergent composition may further comprise a second perfume mixture, which is the same as or different from the perfume mixture of the water-soluble solid fragrance concentrate. An advantage of coating a tablet comprising the water-soluble solid freshening, cleaning, or detergent composition with the solid fragrance concentrate is the ability to increase the amount of fragrance delivered to the user, particularly when the perfume mixture of the solid fragrance concentrate (which can be referred to as the first perfume mixture) is the same as the perfume mixture of the water-soluble solid freshening, cleaning, or detergent composition. When the second perfume mixture is different from the perfume mixture of the water-soluble solid fragrance concentrate, the olfactive palette can be increased and the hedonic experience modified to suit the user.

[0069] The water-soluble solid freshening, cleaning, or detergent composition is in the form of a tablet and comprises ingredients well-known to those of ordinary skill in the art to provide freshening, cleaning, or detergency. Typically, the water-soluble solid freshening, cleaning, or detergent composition in the form of a tablet comprises a water-soluble carrier, which results in a tablet suitable to be dissolved into a solvent, such as water, by a user at the point of use. To aid in dissolution, in an embodiment, the water-soluble solid freshening, cleaning, or detergent composition comprises an effervescent system, typically comprising an acid component and an alkali component.

[0070] The acid component comprises one or more acid. Exemplary acids include, but are not limited to, citric acid, tartaric acid, ascorbic acid, malic acid, fumaric acid, nicotinic acid, acetylsalicylic acid, succinic acid, adipic acid, acid anhydrides, such as glutaric anhydride, succinic anhydride, and the like, and acid salts, such as amino acid hydrochlorides, sodium dihydrogen phosphate, citrate salts, and the like. In an embodiment, the acid component comprises citric acid.Firmenich SA

[0071] The alkali component comprises one or more alkali salts. Exemplary alkali salts include, but are not limited to, sodium bicarbonate, sodium carbonate, sodium glycine carbonate, potassium bicarbonate, potassium carbonate, calcium carbonate, and the like. In an embodiment, the alkali component comprises sodium bicarbonate and / or sodium carbonate.

[0072] The water-soluble solid freshening, cleaning, or detergent composition may comprise at least one surfactant. The surfactant may be selected among nonionic, cationic, anionic and / or amphoteric surfactants, typically anionic and nonionic surfactants. The at least one surfactant in the water-soluble solid freshening, cleaning, or detergent composition may be the same as or different from the non-ionic surfactant of the fragrance concentrate. Typically, the at least one surfactant in the water-soluble solid freshening, cleaning, or detergent composition is different from the nonionic surfactant of the fragrance concentrate.

[0073] Exemplary anionic surfactants include, but are not limited to, sulfates and sulfonates, such as linear alkylbenzenesulfonates (LAS), isomers of LAS, branched alkylbenzenesulfonates (BABS), phenylalkanesulfonates, alpha-olefinsulfonates (AOS), olefin sulfonates, alkene sulfonates, alkane-2,3-diylbis(sulfates), hydroxyalkanesulfonates and disulfonates, alkyl sulfates (AS) such as sodium dodecyl sulfate (SDS), fatty alcohol sulfates (FAS), primary alcohol sulfates (PAS), alcohol ethersulfates (AES or AEOS or FES, also known as alcohol ethoxysulfates or fatty alcohol ether sulfates), secondary alkanesulfonates (SAS), paraffin sulfonates (PS), ester sulfonates, sulfonated fatty acid glycerol esters, alpha-sulfo fatty acid methyl esters (alpha-SFMe or SES) including methyl ester sulfonate (MES), alkyl- or alkenylsuccinic acid, dodecenyl / tetradecenyl succinic acid (DTSA), fatty acid derivatives of amino acids, diesters and monoesters of sulfo-succinic acid or salts of fatty acids (soap), and combinations thereof. In an embodiment, the solid fragrance composition comprises sodium dodecyl sulfate (SDS).

[0074] Exemplary nonionic surfactants include, but are not limited to, alcohol ethoxylates (AE or AEO), alcohol propoxylates, propoxylated fatty alcohols (PFA), alkoxylated fatty acid alkyl esters, such as ethoxylated and / or propoxylated fatty acid alkyl esters, alkylphenol ethoxylates (APE), nonylphenol ethoxylates (NPE),Firmenich SA

[0075] alkylpolyglycosides (APG), alkoxylated amines, fatty acid monoethanolamides (FAM), fatty acid diethanolamides (FADA), ethoxylated fatty acid monoethanolamides (EFAM), propoxylated fatty acid monoethanolamides (PFAM), polyhydroxyalkyl fatty acid amides, or N-acyl N-alkyl derivatives of glucosamine (glucamides, GA, or fatty acid glucamides, FAGA), as well as products available under the trade names SPAN® and TWEEN®, and combinations thereof.

[0076] Commercially available nonionic surfactants include Plurafac198 , Lutensol™ and Pluronic™ range from BASF, Dehypon™ series from Cognis and Genapol™ series from Clariant.

[0077] The water-soluble solid freshening, cleaning, or detergent composition may optionally comprise one or more benefit agents, such as a preservative, dye, optical brightener, aversive agent, disintegrating aid, dissolution aid, processing aid, lubricant, deodorizer, bleaching agent, biocide, cleanser, enzymes, chelating agent, adjuvant, or any combination thereof.

[0078] The water-soluble solid freshening, cleaning, or detergent composition portion may be produced using any method known to those of ordinary skill in the art. For example, the water-soluble solid freshening, cleaning, or detergent composition may be produced first as a powder using known methods, such as powder blending using conical mixers, ribbon blenders, plow mixers, silo mixers, fluidized bed mixers, and the like. Powders can then be further processed to into a tablet using known methods, such as direct compression, fusion, wet granulation, and the like. For instance, a powder may be compressed using a press machine to form tablets.

[0079] In the third aspect, the present disclosure relates to a method for increasing the amount of fragrance provided by a water-soluble solid freshening, cleaning, or detergent composition in the form of a tablet, the method comprising at least partially coating the water-soluble solid freshening, cleaning, or detergent composition with a water-soluble solid fragrance concentrate comprising polyethylene glycol, one or more nonionic surfactants, and a perfume mixture.

[0080] The water-soluble solid fragrance concentrate may be obtained according to any method known to those of ordinary skill in the art. In one suitable method, theFirmenich SA

[0081] polyethylene glycol is heated and melted, after which the one or more nonionic surfactants is / are added to the the polyethylene glycol, and then mixed until homogeneous. The perfume mixture is then added to the polyethylene glycol and the one or more nonionic surfactants, and then mixed until homogeneous.

[0082] The step of coating the water-soluble solid freshening, cleaning, or detergent composition, which is already in the form of solid tablet, can be achieved using any known method. For instance, the molten fragrance concentrate may be poured into a mold to be made into any desired shape, which is then pressed together with the water-soluble solid freshening, cleaning, or detergent composition. Alternatively, the molten fragrance concentrate may be poured onto the tablet comprising a water-soluble solid freshening, cleaning, or detergent composition. The water-soluble solid fragrance concentrate is then allowed to cool and solidify.

[0083] In the fourth aspect, the present disclosure relates to a method for deodorizing, freshening, and / or cleaning a surface or an environment, the method comprising: a) dissolving the water-soluble solid composition described herein in water to form a liquid composition, and

[0084] b) applying the resulting liquid composition to the surface or dispersing the resulting liquid composition to the environment.

[0085] Step a) of dissolving the water-soluble solid composition described herein in water to form a liquid composition may be achieved according to any known method. The water-soluble solid composition, typically in the form of a coated tablet, may be dissolved in a desired amount of water and then diluted to a final concentration. Alternatively, the water-soluble solid composition may be dissolved in a fixed amount of water and then used directly. In yet another alternative, when the water-soluble solid composition is used for laundering, the water-soluble solid composition may be placed directly into a washing machine with textiles to be laundered, after which it would be dissolved and / or be diluted by water and then applied to textile surfaces by action of the washing machine. Similarly, in dishwashing applications, the water-soluble solid composition may be placed directly into a dishwashing machine in which the water-soluble solid composition would be dissolved and / or be diluted by water and then applied to dish surfaces by action of the dishwashing machine. InFirmenich SA

[0086] toilet cleaning applications, the water-soluble solid composition may be placed in the tank of a toilet in which the water-soluble solid composition would be dissolved and / or be diluted by water and then applied to the toilet bowl surfaces by flushing action, or placed directly into the toilet bowl in which the water-soluble solid composition would be dissolved and / or be diluted by water.

[0087] Step b) of applying the resulting liquid composition to the surface or dispersing the resulting liquid composition to the environment may be achieved using any known method readily selected by one of ordinary skill in the art.

[0088] Exemplary methods of applying the resulting liquid composition to the surface are those already mentioned. Other exemplary methods of applying the resulting liquid composition to the surface include, but are not limited to, spraying the surface, wiping the surface, washing the surface, rinsing the surface, and the like, with the resulting liquid composition. In one suitable method, the resulting liquid composition is dissolved and / or diluted in a spray bottle, the spray trigger nozzle is directed to the surface, and then the composition is sprayed onto the surface. In another embodiment, the resulting liquid composition may be used as an all-purpose cleaner, a laundry detergent, a dishwashing detergent, and the like, as described above.

[0089] Exemplary methods of dispersing the resulting liquid composition to the environment include, but are not limited to, using a spray, using a nebulizer, evaporating the resulting liquid composition with a passive or electrical device, and the like. In one suitable method, the resulting liquid composition is dissolved in a spray bottle, the spray trigger nozzle is directed to the environment, and then sprayed into the air.

[0090] The compositions, methods, and uses according to the present disclosure are further illustrated by the following non-limiting examples.

[0091] Example 1.

[0092] The following water-soluble solid fragrance concentrate according to some aspects of the present disclosure was prepared. The ingredients are summarized in Table 1.Firmenich SA

[0093] Table 1

[0094]

[0095] Preparation steps:

[0096] 1. Weigh into a beaker and melt the PEG 8000 in a water bath (80 °C).

[0097] 2. Add the Cremophor RH40 and mix over heat (water bath) until homogenous.

[0098] 3. Add the Fragrance and mix until homogenous.

[0099] 4. Pour the molten sample onto the tablet for coating

[0100] 5. Let the coating cool for about 10 minutes or until solid

[0101] The coated tablet (with 1g coating) produced according to the present example had the following features:

[0102] Fragrance amount in 4.5g tablet: 0.0315 g (0.70% dosed)

[0103] Fragrance amount in 1g coating: 0.1000 g (10% dosed)

[0104] Total fragrance in coated tablet (5.5g): 0.1315g (2.4% dosage)

[0105] Dosage increased +1.7% (4.2x more fragrance)

[0106] The disclosed subject matter has been described with reference to specific details of particular embodiments thereof. It is not intended that such details be regarded as limitations upon the scope of the disclosed subject matter except insofar as and to the extent that they are included in the accompanying claims.

[0107] Therefore, the exemplary embodiments described herein are well adapted to attain the ends and advantages mentioned as well as those that are inherent therein. The particular embodiments disclosed above are illustrative only, as the exemplaryFirmenich SA

[0108] embodiments described herein may be modified and practiced in different but equivalent manners apparent to those of ordinary skill in the art having the benefit of the teachings herein. Furthermore, no limitations are intended to the details of construction or design herein shown, other than as described in the claims below. It is therefore evident that the particular illustrative embodiments disclosed above may be altered, combined, or modified and all such variations are considered within the scope and spirit of the exemplary embodiments described herein. The exemplary embodiments described herein illustratively disclosed herein suitably may be practiced in the absence of any element that is not specifically disclosed herein and / or any optional element disclosed herein.

Claims

Firmenich SAWHAT IS CLAIMED IS:

1. A water-soluble solid fragrance concentrate comprising:i) polyethylene glycol, wherein the polyethylene glycol has a molecular weight of from 4,000 to 12,000,ii) one or more nonionic surfactants, wherein the one or more nonionic surfactants is selected from the group consisting of sucrose esters, C8-C22 alkyl polyglucosides, ethoxylated aliphatic C6-C20 alcohols containing 2 to 30 EO and / or PO units, polyoxyethylene C -Ceo hydroxylesters containing 10 to 40 EO units, C8-C20 mono- and polyglyceryl esters, ethoxylated aliphatic Ce- C20 amines containing 2 to 30 EO and / or PO units, aliphatic C6-C20 carboxylic acid alkanolamides, and any combination thereof, andiii) a perfume mixture, wherein the perfume mixture is present in an amount of 5% to 30%, by weight relative to the total weight of the water-soluble solid fragrance concentrate.

2. The water-soluble solid fragrance concentrate according to claim 1 , wherein the polyethylene glycol has a molecular weight of from 5,000 to 10,000, typically from 6,000 to 8,000.

3. The water-soluble solid fragrance concentrate according to claim 1 or 2, wherein the polyethylene glycol is present in an amount of from 50% to about 99%, typically 70% to 95%, more typically from 75% to 90%, by weight relative to the total weight of the water-soluble solid fragrance concentrate.

4. The water-soluble solid fragrance concentrate according to any one of claims 1 to 3, wherein the one or more nonionic surfactants is selected from the group consisting of sucrose esters, C8-C22 alkyl polyglucosides, ethoxylated aliphatic C6-C20 alcohols containing 2 to 30 EO and / or PO units, polyoxyethylene Cie-Ceo hydroxylesters containing 10 to 40 EO units, C8-C20 mono- and polyglyceryl esters, and any combination thereof.

5. The water-soluble solid fragrance concentrate according to any one of claims 1 to 4, wherein the one or more nonionic surfactants comprise a polyethoxylatedFirmenich SAcastor oil triglyceride containing 10 to 40 EO units, typically a polyethoxylated hydrogenated castor oil containing 40 EO units.

6. The water-soluble solid fragrance concentrate according to any one of claims 1 to 5, wherein the one or more nonionic surfactants is present in an amount of from 1% to about 20%, typically 1% to 10%, more typically from 2% to 5%, by weight relative to the total weight of the water-soluble solid fragrance concentrate.

7. The water-soluble solid fragrance concentrate according to any one of claims 1 to 6, wherein the perfume mixture is present in an amount of from 5% to 10%, by weight relative to the total weight of the water-soluble solid fragrance concentrate.

8. A water-soluble solid composition comprising:a) the water-soluble solid fragrance concentrate according to any one of claims 1 to 7; andb) a water-soluble solid freshening, cleaning, or detergent composition in the form of a tablet;wherein the water-soluble solid fragrance concentrate and the water-soluble solid freshening, cleaning, or detergent composition are not mixed, and wherein the water-soluble solid fragrance concentrate at least partially coats the water-soluble solid freshening, cleaning, or detergent composition.

9. The water-soluble solid composition according to claim 8, wherein the water-soluble solid freshening, cleaning, or detergent composition further comprises a second perfume mixture, which is the same as or different from the perfume mixture of the water-soluble solid fragrance concentrate.

10. The water-soluble solid composition according to claim 8 or 9, wherein the water-soluble solid freshening, cleaning, or detergent composition comprises an effervescent system, typically comprising an acid component and an alkali component.

11. The water-soluble solid composition according to any one of claims 8 to 10, wherein the water-soluble solid composition comprises a first and second layer, theFirmenich SAfirst layer comprising the water-soluble solid fragrance concentrate and the second layer comprising the water-soluble solid freshening, cleaning, or detergent composition.

12. A method for increasing the amount of fragrance provided by a water-soluble solid freshening, cleaning, or detergent composition in the form of a tablet, the method comprising at least partially coating the water-soluble solid freshening, cleaning, or detergent composition with a water-soluble solid fragrance concentrate comprising polyethylene glycol, one or more nonionic surfactants, and a perfume mixture.

13. A method for deodorizing, freshening, and / or cleaning a surface or an environment, the method comprising:a) dissolving the water-soluble solid composition according to any one of claims 8 to 11 in water to form a liquid composition, andb) applying the resulting liquid composition to the surface or dispersing the resulting liquid composition to the environment.

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