Devices and compositions for improving fragrance delivery

Abstract

This invention discloses a flavor intensity regulating composition (RIS composition). The RIS composition comprises at least two of the following: a first flavor intensity regulating component (RIS component) having an average vapor pressure (VP) greater than 0.3 Torr at 25°C; a second RIS component having an average VP of 0.07 Torr to 0.3 Torr at 25°C; and a third RIS component having an average VP of 0.0099 Torr to 0.07 Torr at 25°C. Each of the first RIS component, the second RIS component, and the third RIS component is characterized by an odor detection threshold (ODT) greater than 20 ppb.

Description

Technical Field

[0001] This invention relates to a fragrance intensity modulating composition for improving fragrance delivery in interior spaces, as well as devices and compositions comprising the composition. Background Technology

[0002] Devices for distributing volatile substances are well known and are commonly used in homes and commercial spaces such as rooms or enclosed spaces such as bathrooms and vehicle passenger compartments to deliver a variety of benefits, such as air freshening, odor removal, or fragrance.

[0003] For example, air freshener products have been designed to dispense volatile substances, such as volatile compositions containing one or more volatile substances, such as fragrance oils. The volatile composition can be contained and dispensed by a system, such as by evaporation from membrane-based, wick-based, and gel-based systems. However, a common problem with such air freshener products is the inconsistent evaporation rate of the volatile composition throughout the product's lifespan—that is, a high evaporation rate at the beginning of product use and a low evaporation rate at the end of the product's lifespan.

[0004] Specifically, volatile compositions typically comprise a mixture of highly volatile compounds and other less volatile compounds (“low-volatile compounds”). High-volatile compounds generally have a higher vapor pressure than low-volatile compounds. Specifically, at a given temperature, highly volatile compounds with higher vapor pressures evaporate more readily than low-volatile compounds with lower vapor pressures. In use, highly volatile compounds tend to evaporate faster at the start of use of such products, while low-volatile compounds evaporate subsequently, resulting in inconsistent overall fragrance intensity and flavor profile of the volatile composition throughout the product's lifespan. A high initial evaporation rate can lead to excessively strong initial fragrance intensity, which can create the perception that the air freshener product has varying fragrance intensities during its product lifespan or that the product is no longer effective after the initial fragrance intensity has disappeared.

[0005] Furthermore, the problem of inconsistent evaporation rates is exacerbated when a user first interacts with the air in the interior space (hereinafter referred to as the "first point of contact"). The interior space can be in any part or room of a vehicle, residential building, commercial building, or residential / commercial building.

[0006] Typically, the air at the first point of contact is a mixture of pre-existing or dominant odors in the interior space. This can create an unpleasant first impression on the user upon entry (i.e., at the entrance to the interior space). Furthermore, an unpleasant first point of contact, especially when visitors enter the interior space, can also create a negative impression of subsequent interactions and activities within the space.

[0007] In some cases, carriers such as solvents and diluents are used to slow the evaporation rate of volatile compositions, such as volatile freshening compositions. In highly volatile freshening compositions, high levels of carriers can be used to slow the evaporation of the freshening composition. Adding carriers and other materials to slow the evaporation rate of a freshening composition can significantly reduce the level of fragrance ingredients in the freshening composition, or can alter the properties and aroma intensity of the freshening composition.

[0008] Therefore, it is advantageous to provide a fragrance intensity modulating composition that can be used in a volatile composition to improve fragrance delivery at a first contact point and / or provide a long-lasting fragrance independent of the vapor pressure of the volatile composition without significantly altering the formulation or properties of the volatile composition. Summary of the Invention

[0009] This invention relates to a flavor intensity modifying composition (RIS composition), wherein the RIS composition comprises at least two of the following:

[0010] The first aroma intensity modifier (RIS component) has an average vapor pressure (VP) greater than 0.3 Torr at 25°C;

[0011] The second RIS component had an average VP of 0.07 Torr to 0.3 Torr at 25 °C; and

[0012] The third RIS component had an average VP of 0.0099 Torr to 0.07 Torr at 25 °C;

[0013] Each of the first RIS component, the second RIS component, and the third RIS component is characterized by an odor detection threshold (ODT) greater than 20 ppb. Attached Figure Description

[0014] Figure 1 A perspective view of components of an apparatus for delivering a volatile composition according to the present invention;

[0015] Figure 2 For when Figure 1 The shown device is a side sectional view of the device in a horizontal orientation when it is placed on the support.

[0016] Figure 3 For when Figure 1 The device shown is a side sectional view of the device in a vertical orientation when it is placed on the support.

[0017] Figure 4 A front perspective view of a variant of the device for delivering a volatile composition according to the present invention;

[0018] Figure 5 for Figure 4 Rear perspective view of the equipment;

[0019] Figure 6 for Figure 4 A perspective view of the components of the equipment;

[0020] Figure 7 for Figure 4 A side sectional view of the equipment;

[0021] Figure 8 This is a variation of the device for delivering volatile compositions according to the present invention;

[0022] Figure 9A A side sectional view of a variant of the device for delivering volatile compositions according to the present invention before startup;

[0023] Figure 9B for Figure 9A A side sectional view of the device after startup;

[0024] Figure 9C For use in vehicle environments Figure 9A and 9B A front perspective view of the equipment;

[0025] Figure 10 This is a variation of the device for delivering volatile compositions according to the present invention;

[0026] Figure 11 A front perspective view of a device according to the invention for delivering volatile compositions, used in the interior space of a residential environment at the entrance.

[0027] Figure 12 To plot the fragrance evaporation results over time for the comparative composition (fragrance mixture X only) and the composition of the present invention (RIS composition and fragrance mixture X); and

[0028] Figure 13 To plot the fragrance evaporation results over time for the comparative composition (fragrance mixture Y only) and the composition of the present invention (RIS composition and fragrance mixture Y). Detailed Implementation

[0029] This invention relates to a fragrance intensity modulating composition (hereinafter referred to as "RIS composition") and the use of the RIS composition in a volatile composition for improving fragrance delivery in an interior space.

[0030] Fragrance ingredients (hereinafter “PRMs”) are commonly used to provide fragrance in volatile compositions. Specifically, volatile compositions typically comprise a mixture of highly volatile PRMs and other less volatile PRMs. Highly volatile PRMs generally have a higher vapor pressure than less volatile PRMs. Specifically, at a given temperature, highly volatile PRMs with higher vapor pressures evaporate more readily than less volatile compounds with lower vapor pressures. However, due to the vapor pressure of PRMs, highly volatile PRMs tend to evaporate more quickly at the start of use of such products, while less volatile PRMs evaporate subsequently, resulting in an overall inconsistent fragrance intensity and flavor profile of the volatile composition throughout the product’s lifespan. A high initial evaporation rate can lead to an excessively strong initial fragrance intensity, which can create the perception that an air freshener product has varying fragrance intensities during its product lifespan or that the product is no longer effective after the initial fragrance intensity has disappeared.

[0031] The present invention is based on the following surprising discovery: the RIS composition of the present invention comprises at least two of the following: a first aroma intensity regulating component (RIS component) having an average vapor pressure (VP) greater than 0.3 Torr at 25°C; a second RIS component having an average VP of 0.07 Torr to 0.3 Torr at 25°C; and a third RIS component having an average VP of 0.0099 Torr to 0.07 Torr at 25°C, wherein each of the first RIS component, the second RIS component, and the third RIS component is characterized by an odor detection threshold (ODT) greater than 20 ppb, which can be added to a volatile composition containing PRM to deliver PRM over time with a decreasing initial evaporation rate and aroma intensity, unaffected by temperature and / or airflow from the environment (i.e., the internal space where the volatile composition is placed).

[0032] The technical advantage of a RIS composition having at least two of a first RIS component, a second RIS component, and a third RIS component (each RIS component having a different average vapor pressure at 25°C) instead of a single RIS component is that each of the at least two RIS components can act independently to slow down the respective evaporation rate of the respective volatile compounds with different individual vapor pressures in the volatile composition. Specifically, the first RIS component can evaporate faster than the first volatile compound with a vapor pressure below 0.3 Torr at 25°C, thereby slowing down the evaporation rate of the first volatile compound. Therefore, the second RIS component can evaporate faster than the second volatile compound with a vapor pressure below 0.07 Torr at 25°C, and the third RIS component can evaporate faster than the third volatile compound with a vapor pressure below 0.0099 Torr at 25°C.

[0033] Volatile compounds can be designed to evaporate to provide beneficial effects within the interior space. One or more of the volatile compounds can be beneficial agents used to deliver these beneficial effects within the interior space. Beneficial agents can include, but are not limited to, fragrances for providing a pleasant aroma or deodorants for removing unpleasant odors. The technical effect of slowing the evaporation rate of the volatile compounds is the ability to control the release of beneficial effects from the volatile components. Furthermore, each of the RIS components is designed to be odorless by having an odor detection threshold (ODT) greater than 20 ppb.

[0034] For the purpose of detailing the invention, the RIS compositions described below are used to formulate volatile compositions with fragrance raw materials (PRMs) to deliver a beneficial fragrance effect in interior spaces, and therefore the volatile compositions are described as fragrance compositions. RIS compositions can also be used to formulate volatile compositions having PRMs for freshening the air in interior spaces in a continuous, non-electrical manner, and therefore the volatile compositions are described as air-freshening compositions. However, it is contemplated that RIS compositions can be configured for various applications to deliver beneficial effects in interior spaces. Before describing the invention in detail, the following terms are defined for clarity. Undefined terms should have their common meaning as understood by those skilled in the art.

[0035] As used herein, “Odor Detection Threshold (ODT)” refers to the minimum concentration of a substance that can be detected by the human nose and is determined according to the ODT method described in U.S. Patent 9,827,342B2 (hereinafter “U.S. Patent 9,827,342”), published on November 28, 2017, in the name of The Procter & Gamble Company. Specifically, the ODT of a single fragrance ingredient (PRM) or individual RIS component can be calculated directly based on the molecular structure of a given PRM or a given RIS component using the test method outlined in U.S. Patent 9,827,342, and expressed in ppb. The ODT can be determined by the software release version 1.0.1.3 of “winMolconn” (commercially available and offered by the software provider Hall Associates Consulting (Quincy, Mass., USA) at www.molconn.com).

[0036] As used herein, the “Molar Olfactory Index (MOI)” is an index that quantifies the odor intensity of a material as a value based on the equation described below. A composition with a higher MOI value is associated with higher odor intensity compared to another composition with a lower MOI value. Therefore, a fragrance composition with a higher MOI value corresponds to higher aroma intensity compared to another fragrance composition with a lower MOI value.

[0037] As used herein, “ClogP” refers to the calculated logP (“ClogP”) value of a PRM. The octanol / water partition coefficient of a PRM is the ratio of its equilibrium concentrations in octanol and water. The partition coefficient of a PRM used in refreshing compositions is more conveniently given in its base-10 logarithmic form, LogP. ClogP is determined by a model that calculates the octanol-water partition coefficient (logP or logKow) of general organic molecules directly based on molecular structure. LogP is a measure of the distribution of a solute between two immiscible liquid phases (octanol and water) and is commonly used as a relative measure of the hydrophobicity of the solute. One method for calculating the LogP of a PRM is to use the ACD / Labs LogP software module from Advanced Chemistry Development, Inc. Details of logP calculations can be found on the ACD / Labs website (https: / / www.acdlabs.com / products / percepta / predictors / logp / ). The LogP values ​​of the PRMs are calculated using the ACD / Labs LogP software module, and these LogP values ​​are used to select PRMs suitable for use in this invention, as described in the embodiments below. However, it should be understood that another suitable method for measuring LogP is to use the “ClogP” program from BioByte Corp (e.g., ClogP version 4.0 and manual, 1999). CLOGP User Guide, version 4.0, BioByte Corp (1999) (http: / / www.bio-byte.com / bb / prod / clogp40.html). Another suitable method for measuring LogP is to use the CLOGP program from Daylight Chemical Information Systems, Inc., Alison Viejo, CA. CLOGP Reference Manual, Daylight version 4.9, published February 1, 2008.

[0038] As used herein, "horizontal orientation" refers to the positioning of the air-purifying product according to the present invention, wherein the membrane is positioned upward or downward toward the environment.

[0039] "Interior space" refers to a finite volume of space within an environment, including but not limited to residential, commercial, or vehicular environments. Interior space can be a room within a residential or commercial environment, such as a sanitary facility. Sanitary facilities may include bathrooms, toilets, shower rooms with toilets, and changing rooms. Interior space can also be enclosed spaces, such as furniture used for storing personal belongings, including but not limited to shoe cabinets, wardrobes, and gym lockers.

[0040] As used herein, a "membrane" is a semi-permeable material that allows some components of a substance to pass through while blocking others. Of the components that do pass through, the membrane slows down the permeation of some components, meaning that some components permeate faster than others. Such components can include molecules, ions, or particles.

[0041] As used in this article, "microporous membrane" refers to a material with a network of pores.

[0042] As used in this article, “natural convection” refers to a type of flow in which the movement of a liquid (such as water) or a gas (such as air) is not generated by any external source (such as a pump, fan, suction device, etc.), but some parts of the fluid are heavier than others.

[0043] "Non-electric" means that the product is passive and does not require power from an external energy source. Specifically, the product does not require power from a heat source, gas source, or electrical source. The product can also be configured as an electrically powered device. An exemplary electrically powered device can be an electrical device. An electrically powered device can be the outlet of an electric vehicle or a battery-powered air purifier having a wick and / or membrane as described below to deliver and / or evaporate the freshening composition therefrom; or other heating devices (e.g., devices powered by chemical reactions such as catalytic fuel systems; solar energy devices, etc.).

[0044] As used herein, the term "permeable material" means any material that allows liquids or gases to pass through, and includes, but is not limited to, drywall, wallpaper, wood, vinyl plastics, plastics, plaster, wall panels, fabrics, decorative materials, paper, textiles, natural polymers, synthetic polymers, and inorganic materials, as well as mixtures thereof. Permeable materials may also include residues that form on any inanimate surface, and include, but are not limited to, dust particles or grease on inanimate surfaces.

[0045] As used in this article, the term "inanimate surface" refers to, but is not limited to, fabrics, carpets, and household surfaces such as floors, walls, carpet backings, towels, etc.

[0046] As used herein, "vertical orientation" refers to the positioning of the air-purifying product according to the present invention, wherein the membrane faces the environment with its face forward or its face backward.

[0047] As used herein, the term "volatile composition" refers to a substance that can evaporate at room temperature and atmospheric pressure without requiring an additional energy source. Such compositions can be configured for a variety of uses, including but not limited to air freshening, deodorizing, odor elimination, odor neutralization, pest control, insect control, insect repellent, pharmaceuticals / medicines, disinfectants, sanitation, mood enhancement, aromatherapy adjuvants, scented compositions, unscented compositions, or any other use requiring a freshening composition for conditioning, modifying, or otherwise altering the atmosphere or environment. Furthermore, not all components of the composition are necessarily volatile. Any suitable composition can be used in any amount or in any form (including liquids, solids, gels, or emulsions). Substances suitable for use herein may include non-volatile compounds, such as carrier substances (e.g., water, solvents, etc.). It should also be understood that when a composition is described herein as being "delivered," "dispersed," or "released," this refers to the evaporation of its volatile components and does not require the dispersion of its non-volatile components.

[0048] As used herein, “fragrance composition” includes a fragrance composition comprising one or more fragrance ingredients (PRMs) designed to treat (e.g., eliminate or reduce / minimize odors), deliver pleasant scents, and / or freshen the air in an interior space.

[0049] As used herein, “fresh composition” means a composition that includes a fragrance composition. A fresh composition may or may not be used with a device for delivering the fresh composition.

[0050] As used herein, “point of contact” refers to the point of contact or interaction between consumers of volatile compositions and consumers of volatile compositions.

[0051] Unless otherwise stated, all percentages, parts, and ratios are based on the total weight of the compositions of the present invention. Unless otherwise specified, all such weights relating to the listed ingredients are based on active substance levels and therefore do not include solvents or byproducts that may be included in commercially available materials. Hereinafter, the term “weight percentage” may be expressed as “weight%”. As used herein, unless otherwise specified, all molecular weights are weight-average molecular weights, expressed in grams per mole.

[0052] I. Volatile Compositions

[0053] The volatile composition according to the invention comprises a fragrance-containing hydrophobic material and a RIS composition. Preferably, the volatile composition is substantially carrier-free.

[0054] The total weight ratio of the RIS composition to the scented hydrophobic material can be formulated at an effective weight ratio to achieve the desired scent intensity distribution.

[0055] The volatile composition may be a fragrance composition, preferably a freshening composition, and more preferably an air-freshening composition for delivering fragrance in an interior space. The air-freshening composition may preferably be contained in a non-electrically powered air freshener, more preferably in a continuously non-electrically powered air freshener.

[0056] The volatile composition may contain an effective amount of a RIS composition suitable for adjusting the aroma intensity. The volatile composition may contain at least 20%, preferably 20% to 90%, more preferably 30% to 80% of the RIS composition by weight of the volatile composition.

[0057] The technical effect of providing a RIS composition in a volatile composition is to reduce the fragrance intensity of the hydrophobic material with fragrance to improve the fragrance experience in the interior space, especially at the first point of contact at all temperatures and airflow rates.

[0058] Specifically, when a RIS composition is designed for use in a fragrance composition comprising a mixture of fragrance groups (top notes, middle notes, and base notes), each of the RIS components can be selected based on its average vapor pressure to slow the evaporation rate of each respective target fragrance group by evaporating faster than the corresponding target fragrance group. Table 1 below shows exemplary RIS components with their respective target fragrance groups and vapor pressures.

[0059] Table 1

[0060]

[0061] A RIS composition comprising at least two of a first RIS component, a second RIS component, or a third RIS component can measurably reduce the evaporation rate of the flavor raw materials in each corresponding group and is capable of reducing the vapor release rate of the flavor composition, primarily by the RIS component evaporating faster than one or more PRMs in the corresponding PRM group, rather than solely relying on the vapor pressure of the PRMs in the flavor composition, adding a carrier to the flavor composition, or reducing the amount of the flavor composition to reduce the evaporation rate of the PRMs and reduce the aroma intensity. This results in a more uniform evaporation distribution of the flavor composition within the internal space (e.g., demonstrated by top-space testing simulating the internal environment of the internal space, as shown in the results described below in the examples), thereby producing improved aroma delivery.

[0062] Specifically, compared to a fragrance composition without a RIS composition, the RIS composition can be configured to have a low or no fragrance. Specifically, compared to a fragrance composition, the RIS composition can have a lower molar olfactory index (MOI). As used herein, "molar olfactory index (MOI)" refers to an index that quantifies the odor intensity of a material as a value according to the MOI equation described below. A volatile composition with a higher MOI value is associated with higher odor intensity compared to another composition with a lower MOI value. Therefore, a volatile composition with a higher MOI value corresponds to higher fragrance intensity compared to another volatile composition with a lower MOI value.

[0063] The molar olfactory index (MOI) of a volatile composition can be determined to identify the desired fragrance characteristics of an air-freshening composition for use, for example, in a continuously non-electrically powered air freshener, particularly an evaporative air freshener.

[0064] Specifically, the MOI of a volatile composition can be characterized by the molar olfactory index (MOI) defined by the following equation (I).

[0065]

[0066] in

[0067] i = RIS component in the RIS composition;

[0068] x i = The number of molar parts of component i in RIS;

[0069]

[0070] ODT i = Odor detection threshold (ppb) for RIS component I;

[0071] j = Components in the spice mixture;

[0072] x i = The number of molar parts of component j;

[0073]

[0074] ODT i = Odor detection threshold (ppb) for component j;

[0075] y = numerical value at a specific temperature.

[0076] The volatile composition is characterized by a reduction efficiency of at least 10% in the molar olfactory index (MOI) at 35°C. The MOI reduction efficiency of the volatile composition is determined according to the following equation (II).

[0077]

[0078] Specifically, the MOI reduction efficiency defines the reduction in aroma intensity of a volatile composition containing a RIS composition and a scented hydrophobic material relative to a volatile composition containing a scented hydrophobic material but without the RIS composition. The method for determining the MOI of the RIS composition is described below based on the respective components in the volatile composition.

[0079] The MOI of the volatile composition can also be altered by adding an effective amount of the RIS composition. Specifically, adding 90% of the RIS composition reduces the MOI and achieves an 85% MOI reduction efficiency. If a higher fragrance intensity is preferred, the RIS composition can also be adjusted accordingly. Therefore, the use of RIS compositions provides flexibility in formulating various fragrance intensities to offer a wide range of products based on consumer preferences, including low-fragrance air freshener compositions and / or air fresheners with higher odor intensities.

[0080] Without being bound by theory, compared to using conventional diluents listed in Table 2 below, such as 3,5,5-trimethylhexyl acetate, 3,7-dimethyloctyl-1,6-dien-3-ol and 4-methyl-2-(2-methylpropyl)tetrahydropyran-4-ol to reduce fragrance intensity, the use of a RIS composition is a RIS composition having a combination of at least two of the first RIS component / second RIS component / third RIS component to slow down the evaporation of at least two of the top notes / middle notes / base notes without affecting the fragrance characteristics.

[0081] Table 2

[0082]

[0083]

[0084] Referring to Table 2, the diluents, 3,5,5-trimethylhexyl acetate and 3,7-dimethyloctyl-1,6-dien-3-ol, alone or in combination, do not have an MOI of less than or equal to 1 × 10⁴ at 35 °C. Using 3,5,5-trimethylhexyl acetate as a single diluent only slows the evaporation rate of the top-concentration, but not the evaporation rate of the mid-concentration and post-concentration, because it evaporates from the volatile composition at the start of use before the top-concentration, and the evaporation of the mid-concentration and post-concentration will not be controlled. Similarly, considering vapor pressure, using 3,7-dimethyloctyl-1,6-dien-3-ol and 4-methyl-2-(2-methylpropyl)tetrahydropyran-4-ol as single diluents only addresses the mid-concentration and post-concentration, respectively. The combination of 3,5,5-trimethylhexyl acetate, 3,7-dimethyloctyl-1,6-dien-3-ol, and 4-methyl-2-(2-methylpropyl)tetrahydropyran-4-ol has an MOI greater than 1 × 10⁻⁶ at 35 °C.4 (4.00×10 4 This means that if this combination is added to a spice blend that has top, middle, and base notes, the aroma intensity of the combination can affect the aroma characteristics of the spice blend.

[0085] The fragrance composition according to the invention comprises a fragrance mixture; and a flavor intensity regulating composition (RIS composition) comprising a first flavor intensity regulating component (RIS component) having an average vapor pressure (VP) greater than 0.3 Torr at 25°C; and at least one of the following:

[0086] The second RIS component had an average VP of 0.07 Torr to 0.3 Torr at 25 °C; and

[0087] The third RIS component had an average VP of 0.0099 Torr to 0.07 Torr at 25 °C;

[0088] Each of the first RIS component, the second RIS component, and the third RIS component is characterized by an odor detection threshold (ODT) greater than 20 ppb.

[0089] The technical effect of combining the first RIS component with the second or third RIS component is that the first RIS component can improve the delivery of a “just right” fragrance intensity by evaporating faster than the top notes. This rapid evaporation of the top notes creates the initial impression of the fragrance composition without being overly strong (“too strong a fragrance”), which is important at the first point of contact, such as when placing a device containing the fragrance composition at the entrance of a residential interior space. Figure 11 As shown.

[0090] A. RIS composition

[0091] The RIS composition may be characterized by being less than or equal to 1x10 4 The molar olfactory index (MOI) at 35°C, where MOI is defined by the following equation (III).

[0092]

[0093] Where i is the corresponding RIS component;

[0094] x i = The number of molar parts of component i in RIS;

[0095] as well as

[0096] ODT i = ODT(ppb) of RIS component i.

[0097] Highly volatile compounds with higher vapor pressures evaporate more quickly at higher temperatures compared to lower temperatures. Specifically, the MOI at 35°C is less than or equal to 1 × 10⁻⁶. 4 The RIS composition implies that the evaporation of the RIS composition has little or no effect on the overall aroma delivered within the internal space. Therefore, at higher temperatures, there is improved aroma inhibition in the fragrance composition without affecting the aroma characteristics, while simultaneously reducing aroma intensity. The fragrance compositions of the present invention have a reduced MOI (corresponding to reduced aroma intensity) relative to fragrance compositions without the RIS composition, as demonstrated in the results described in the examples below, specifically Example I. Table 3 below lists exemplary RIS compositions according to the present invention.

[0098] Table 3 – Exemplary RIS Compositions

[0099]

[0100] The total weight ratio of the first RIS component to the second RIS component can be formulated at an effective weight ratio to achieve a ratio less than or equal to 1 × 10⁻⁶. 4 The MOI at 35°C. Furthermore, the total weight ratio of the first, second, and third RIS components can be formulated at an effective weight ratio to achieve a value less than or equal to 1 × 10⁻⁶. 4 The MOI at 35°C is less than the MOI.

[0101] First RIS component

[0102] The RIS composition may contain an effective amount of a first RIS component by weight of the RIS composition, the first RIS component having an average vapor pressure (VP) greater than 0.3 Torr at 25°C. Specifically, the first RIS component may be constructed in an effective amount suitable for adjusting the aroma intensity of a volatile composition comprising a top note. Specifically, the amount of the first RIS component may be at least 5%, 5% to 30%, 10% to 25%, 15% to 25%, 20% to 25%, or different combinations of the upper and lower percentages described above, or any combination of integers within the ranges listed above, by weight of the RIS composition. The first RIS component may be an alcoholic compound comprising an alcohol. Specifically, the first RIS component may be a C4-C8 alcohol.

[0103] The first RIS component may be selected from the group consisting of: 3-methoxy-3-methylbut-1-ol (MMB), 3-methylbut-2-ol, but-1-ol, 2,3-dimethylbut-2-ol, 1-methoxyprop-2-ol, 2-methylbut-2-ol, 3-methylbut-1-ol, hex-1-en-3-ol, 2-ethylbut-1-ol, 4-methylpent-1-ol, 3-methylpent-1-ol, ethyl 2-hydroxypropionate, 2-butoxyethanol, ethyl 3-hydroxybutyrate, and mixtures thereof, more preferably from the group consisting of: MMB, 2-ethylbut-1-ol, 4-methylpent-1-ol, 3-methylpent-1-ol, and mixtures thereof, and even more preferably MMB.

[0104] The physiological and chemical properties of suitable compounds for use in the first RIS component are listed in Table 4 below.

[0105] Table 4 – First RIS Component

[0106]

[0107]

[0108] Second RIS component

[0109] The RIS composition may contain an effective amount of a second RIS component based on the weight of the RIS composition, the second RIS component having an average vapor pressure (VP) of about 0.07 Torr to about 0.3 Torr at 25°C. Specifically, the second RIS component may be constructed in an effective amount suitable for adjusting the aroma intensity of a volatile composition comprising a mid-tone. Specifically, the amount of the second RIS component may be at least 20%, 20% to 50%, 25% to 50%, 30% to 45%, 40% to 45%, or different combinations of the upper and lower percentages described above, or any combination of integers within the ranges listed above, based on the weight of the RIS composition. The second RIS component may be an ester-containing compound. As used herein, the term "ester-containing compound" refers to a compound containing one or more acyl groups, and the compound may contain the following structure:

[0110]

[0111] in:

[0112] R1 and R2 are selected from the group consisting of substituted or unsubstituted saturated or unsaturated alkyl chains, substituted or unsubstituted cycloalkyl chains, and substituted or unsubstituted aryl groups, preferably from the group consisting of substituted or unsubstituted saturated or unsaturated alkyl chains.

[0113] Specifically, the second RIS component can be a compound containing a C6-C12 ester.

[0114] The second RIS component may be selected from the group consisting of: dimethyl adipate (DMA), ethyl 3,5,5-trimethylhexanoate, dimethyl succinate, diethyl malonate, ethyl 3-acetoxyhexanoate, methyl 5-acetoxyhexanoate, 3-O-butyl malonate, dipropyl-2-yl adipate, methyl (4-methoxyphenyl) formate, ethyl 3-hydroxyhexanoate, and mixtures thereof, more preferably from the group consisting of: DMA, ethyl 3-acetoxyhexanoate, methyl 5-acetoxyhexanoate, 3-O-butyl malonate, and mixtures thereof, and even more preferably DMA.

[0115] The physiological and chemical properties of suitable compounds for use in the second RIS component are listed in Table 5 below.

[0116] Table 5 – Second RIS Components

[0117]

[0118] Third RIS component

[0119] The RIS composition may contain an effective amount of a third RIS component by weight of the RIS composition, the third RIS component having an average vapor pressure (VP) of about 0.0099 Torr to about 0.07 Torr at 25°C. Specifically, the third RIS component may be constructed in an effective amount suitable for adjusting the aroma intensity of a volatile composition including a after-note. The amount of the third RIS component may be at least 10%, 10% to 45%, 15% to 45%, 20% to 40%, 30% to 40%, or different combinations of the upper and lower percentages mentioned above, or any combination of integers within the ranges listed above, by weight of the RIS composition. The third RIS component may be an alcohol-containing compound, preferably a C5-C10 alcohol. The third RIS component may be selected from the group consisting of: 1-(3-methoxypropoxy)prop-1-ol (DPM), 2-(2-methoxyethoxy)ethanol, methyl 2-hydroxybenzoate, 6,8-dimethylnon-2-ol, 2-phenoxyethanol, 4-oxa-1,6-hexanediol, 1-(1-methyl-2-propoxyethoxy)prop-2-ol, 1-(2-butoxy-1-methoxy)prop-2-ol, and mixtures thereof, more preferably from the group consisting of: DPM, 2-(2-methoxyethoxy)ethanol, 2-phenoxyethanol, 4-oxa-1,6-hexanediol, and mixtures thereof, and even more preferably DPM.

[0120] The physiological and chemical properties of suitable compounds for use in the third RIS component are listed in Table 6 below.

[0121] Table 6 – Third RIS Component

[0122]

[0123] B. Fragrance-containing hydrophobic materials

[0124] The volatile composition may contain a fragrance-containing hydrophobic material formulated in an effective amount such that it provides the desired fragrance characteristics and is uniformly soluble in the volatile composition to deliver a consistent fragrance characteristic.

[0125] The scented hydrophobic material may include a CLogP of greater than 0.01, preferably from 0.01 to 6.5, more preferably from 0.5 to 5.5.

[0126] The hydrophobic material with fragrance can be a fragrance mixture containing one or more nonfunctional fragrance ingredients. The nonfunctional fragrance ingredient (“nonfunctional PRM”) is used only for its aroma, flavor or pleasurable effect and does not include any of the first RIS component, the second RIS component and the third RIS component described above.

[0127] Equation (III) described above for determining the MOI of the RIS composition can be modified to select a PRM for use, for example, in a continuously non-energized air freshener, specifically in an evaporating air freshener containing a fragrance mixture comprising top, middle, and base notes.

[0128] Specifically, the MOI of a scented hydrophobic material, such as a fragrance mixture having one or more PRMs, can be characterized by the Molar Odor Index (MOI) as defined by the following equation (IV).

[0129]

[0130]

[0131] in

[0132] j = Components in the spice mixture;

[0133] x i = The number of molar parts of component j;

[0134]

[0135] ODT i = Odor detection threshold (ppb) for component j;

[0136] y = numerical value at a specific temperature.

[0137] One or more nonfunctional PRMs may be selected from the group consisting of: ethylene glycol cyclododecanoate, 4-tert-butylcyclohexyl acetate, or Vertenex.TM Allyl isopentyl glycolate, allyl hexanoate, allyl cyclohexanepropionate, allyl heptaate, Amber Xtreme, Ambroxol, isoamyl acetate, isoamyl propionate, anise oil, benzyl acetate, benzyl propionate, cis-3-hexen-1-ol, β-naphthol methyl ether or nerol, fenugreek lactone, caryophyllene extract, cinnamalva TM Or cinnamyl nitrile, cinnamyl acetate, cinnamylnitrile, cis-3-hexenylbutyrate, cis-3-hexenyl acetate, cis-3-hexenyl α-methylbutyrate, cis-6-nonen-1-ol, citral diethylacetal or citral diethylacetal, citronellol, citronellol acetate, citronellol butyrate, clonal or dodecane nitrile, coranol or 2,2-dimethylcyclohexanepropanol, coumarin, cuminol, cuminol, tricyclodecenyl isobutyrate or tricyclodecenyl butyrate, cyclohexyl ethyl acetate, dihydromyrcenol, methyl o-aminobenzoate, dimethyl benzyl methanol acetate, dimethyl-2,6-hept-2-ol or freesia, sandal Pentenol or ebony alcohol, ethyl 2-methylvalerate, ethyl acetoacetate, ethyl linalool, ethyl maltol, ethyl phenyl glycidate, ethyl vanillin, ethyl 2-methylbutyrate, eucalyptol, floracetate, ozone propanal or floralozone, fructalate TM Or raspberry dicarboxylate, geraniol, or trans-3,7-dimethyl-2,7-octadien-1-ol, grisalva TM Or amberfuran, habanolide TM Or (E)-12-oxetane-hexadecene-2-one ((E)-12-musk decenone), helvetolide TM Or musk propanoate, hexyl acetate, hexyl 2-methylbutyrate, indocolore TM Or 1-phenylvinyl acetate, isoborneol acetate, isoeugenol acetate, isopropyl myristate, isoamyl butyrate, isoeugenol, koumalactone TMOr coumarin, sandalwood (laevo trisandol) or sandalwood (sandranol), lemonile TM Or 3,7-dimethyl-2,6-nonadienyl nitrile, levistamel TM Or dimethylcoumarin, linalool, linalyl acetate, linalyl isobutyrate, lymolene or dihydromyrcenol, menthol, methyldioxolane or fructone TM methylisobutylene tetrahydropyran, methylpamplemousse TM Or turpentine, methyl phenyl acetate or styrene acetate, methyl salicylate, montaverdi TM Or cyclopropionic acid leaf alcohol ester, mugetanol TM Or α-methyl-4-(1-methylethyl)cyclohexylethanol, neocaspirene, methyl nonenoate, melon nonenoate nerolidol, sweet orange extract, orcinyl-3 or 3-methoxy-5-methylphenol, oxane TM Or cis-white rosin oxythiocyclohexane, p-cresol methyl ether or p-methyl anisole, patchouli, phenylethanol, phenylethyl dimethylmethanol, polysantol TM Or santol pentenol, pentenyl acetate, sauvignone TM Or 5-mercapto-5-methyl-3-hexanone, sclareolate TM Or nerol propionate, shisolia, strawberiff TM Or 2-methyl-2-pentenoic acid, terpinene, or 4-isopropylidene-1-methylcyclohexene, tetrahydromuguol TM Or citrus ocimenool, thesaron TM (1R,6S)-2,2,6-trimethyl-cyclohexanecarboxylic acid ethyl ester, tobacarol TM Or 5-tetramethyloxatricyclododecane, undecavertol TM Or violet decenol, verdox TM Or green acetate, verdural B TM Or (Z)-3-hexen-1-yl isobutyrate, violettyne TM Or violetyne, violiffTM Or violet methyl carbonate and mixtures thereof, preferably one or more non-functional flavoring ingredients are high-aroma nitrile.

[0138] One or more nonfunctional PRMs may be selected from the group consisting of volatile aldehydes, ketones, and mixtures thereof.

[0139] One or more nonfunctional PRMs may include at least one volatile aldehyde selected from the group consisting of:

[0140] Adoxal TM (2,6,10-trimethyl-9-undecenal), Bourgeonal TM (4-tert-butylphenylpropanal), Lilestralis 33 TM ((2-Methyl-4-tert-butylphenyl)propanal), cinnamaldehyde, cinnamaldehyde (phenyl acrolein, 3-phenyl-2-propanal), citral, neraldehyde (dimethyloctadienal, 3,7-dimethyl-2,6-octadien-1-al), Cyclal C TM (2,4-Dimethyl-3-cyclohexene-1-carboxaldehyde), Florhydral TM (3-(3-isopropyl-phenyl)-butanal), citronellal (3,7-dimethyl-6-octenal), cymal (2-methyl-3-(p-isopropylphenyl)propanal), cyclamate aldehyde, citral (α-methyl-p-isopropylphenylpropanal), methyl nonanal, aldehyde C12 MNA (2-methyl-1-undecanal), hydroxycitronellal, citronellal hydrate (7-hydroxy-3,7-dimethyloctyl-1-aldehyde), Helional TM (3-(1,3-benzodioxolane-5-yl)-2-methylpropanal); 2-methyl-3-(3,4-methylenedioxan)propanal, isoundecaldehyde (undecyl-10-en-1-al), Ligustral TM (2,4-Dimethylcyclohexyl-3-ene-1-carboxaldehyde), Trivertal TM (2,4-Dimethyl-3-cyclohexene-1-carboxaldehyde), Jasmorange TM Or salbutamol (2-methyl-3-tolylpropionaldehyde, 4-dimethylphenylpropionaldehyde), Lyral TM (4-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde), Melonal TM(2,6-Dimethyl-5-heptenal), methoxycucurbital (6-methoxy-2,6-dimethylheptenal), methoxycinnamonal (trans-4-methoxycinnamonal), Myrac aldehyde TM (isohexenyltetrahydrobenzaldehyde), trifernal TM (3-Methyl-4-phenylpropanal, 3-phenylbutanal), lily aldehyde (3-(4-tert-butylphenyl)-2-methylpropanal), phenylpropanal (4-tert-butyl-α-methyl-hydrogenated cinnamaldehyde), Dupical TM (4-[tricyclo[5,2,1,O2,6]decylidene-8-enenyl]butanal), tricyclodecenylbutanal (4-tricyclo5210-2,6-decylidene-8-butanal), Melafleur TM (1,2,3,4,5,6,7,8-octahydro-8,8-dimethyl-2-naphthaldehyde), methyloctylacetaldehyde, aldehyde C-11MOA (2-methyldecyl-1-aldehyde), Onicidal TM (2,6,10-Trimethyl-5,9-Undecadien-1-aldehyde), Citronelloloxyacetaldehyde, Muguet aldehyde 50 TM (3,7-Dimethyl-6-octenyl)oxyacetaldehyde, phenylacetaldehyde, Mefranal TM (3-Methyl-5-phenylpentanal), dimethyltetrahydrobenzaldehyde (2,4-dimethyl-3-cyclohexene-1-carboxaldehyde), 2-phenylpropanal, 2-phenylpropanal (Hydrotropaldehyde), Canthoxal TM (p-Anethrylpropanal), Anethrylpropanal, 4-Methoxy-α-methylphenylpropanal (2-Anethrylpropanal), Cyclemone A TM (1,2,3,4,5,6,7,8-octahydro-8,8-dimethyl-2-naphthaldehyde), Precyclemone B TM (1-Cyclohexene-1-formaldehyde), mixtures thereof, preferably one or more non-functional fragrance ingredients selected from the group consisting of: Melonal TM (2,6-Dimethyl-5-heptenal), methoxycucurbital (6-methoxy-2,6-dimethylheptenal), Florhydral TM (3-(3-isopropyl-phenyl)-butanal) and mixtures thereof.

[0141] One or more non-functional fragrance ingredients may include at least one ketone selected from the group consisting of: isojasmone, methyl β-naphthyl ketone, musk indanone, tonalidone, etc. TMOr, inhaling musk, α-damascone, β-damascone, δ-damascone, isodamacone, damascone, methyl dihydrojasmone, menthone, carvone, camphor, fennelone, α-ionone, β-ionone, dihydro-β-ionone, γ-methylionone, α-methylionone, β-n-methylionone isomer, fleuramone TM Or 2-heptylcyclopentan-1-one, dihydrojasmone, cis-jasmone, iso-e-super TM Or acetone, methyl cedarone or methyl cedarone, acetophenone, methyl acetophenone, p-methoxyacetophenone, methyl-β-naphthyl-one, benzylacetone, benzophenone, p-hydroxyphenylbutanone, apigenin or livescoone TM 6-Isopropyldecahydro-2-naphthone, dimethyloctenone, freskomenthe TM Or 2-but-2-ylcyclohexane-1-one, 4-(1-ethoxyvinyl)-3,3,5,5,-tetramethyl-cyclohexanone, methylheptenone, 2-(2-(4-methyl-3-cyclohexen-1-yl)propyl)-cyclopentanone, 1-(p-menthene-6(2)-yl)-1-propanone, 4-(4-hydroxy-3-methoxyphenyl)-2-butanone, 2-acetyl-3,3-dimethyl-norbornane, 6,7-dihydro-1,1,2,3,3-pentamethyl-4(5h)-indanone, 4-damascol TM Or piperoxenone, dulcinyl TM Or 4-(1,3-benzodioxolane-5-yl)but-2-one, gelsone TM Or ethyl 2-acetylglucanoate, hexalon TM Or α-allyl ionone, methyl cyclocitrone TM Or 1-(3,5,6-trimethyl-1-cyclohexyl-3-enyl) ethyl ketone, methyl-lavender-ketone TM Or 3-(hydroxymethyl)nonane-2-one, orivone TM Or 4-(2-methylbutan-2-yl)cyclohexane-1-one, p-tert-butylcyclohexanone, verdone TM Or 2-tert-butylcyclohexane-1-one, delphone TM Or 2-pentylcyclopentan-1-one, muscone, neobutenone TM Or 1-(5,5-dimethyl-1-cyclohexenyl)pent-4-en-1-one, plicatone TM Or octahydro-7-methyl-1,4-methylnaphthyl-6(2H)-one, veloutone TMOr 2,2,5-trimethyl-5-pentylcyclopentan-1-one, 2,4,4,7-tetramethyl-oct-6-en-3-one, tetrameran TM Or undecaneone, hedione TM Or methyl dihydrojasmonate, γ-undecanoic acid lactone, γ-decanoic acid lactone, γ-octanoic acid glycol ester, cyclopentadecanolactone, methyl nonyl ketone, cyclopentadecanol, 3,4,5,6-tetrahydropseudoionone, 8-hexadecenelactone, dihydrojasmonone, 5-cyclohexadecenecanol, and mixtures thereof, preferably one or more nonfunctional fragrance ingredients are 2-but-2-ylcyclohexane-1-one.

[0142] C. Surfactant

[0143] Volatile compositions may contain surfactants. Surfactants provide beneficial effects such as cleaning, surface care protection, fabric conditioning or softening, fabric freshening, wrinkle removal, air freshening, air deodorization, and odor removal within the interior space. Surfactants do not include water or deionized water. In freshening compositions, surfactants can deliver a genuine odor removal benefit. A genuine odor removal benefit is defined as a reduction in odor that is sensorily and analytically measurable (e.g., by GC). Therefore, if an air freshening composition delivers a genuine odor removal benefit, it will not work simply by masking or covering up odors with fragrance. If an air freshening product contains an odor control agent, it can utilize one or more of several types of odor control mechanisms. A suitable odor control agent is cyclodextrin.

[0144] Surfactants may also include surfactants, emulsifiers, solubilizers, polymers, deodorants such as cyclodextrin, hydrogen peroxide, buffer solutions, zinc ions, etc.

[0145] D. Optional components

[0146] Volatile compositions may optionally include odor masking agents or odor blocking agents. "Odor blocking" refers to the ability of a compound to desensitize human olfaction; "odor masking" refers to the ability of a compound to mask or conceal malodorous compounds. Odor masking may include the quantitative addition of a compound having a non-unpleasant or pleasant odor, thereby limiting the ability to perceive malodorous compounds. Odor masking may involve the selection of compounds that act in conjunction with the intended malodor to alter the perception of the overall odor emitted by the combination of malodorous compositions.

[0147] II. equipment

[0148] The compositions of the present invention can be delivered to interior spaces using devices such as air fresheners. In the following description, the described device 1 is a consumer product, such as an air freshener product, for use in occupying space inside a vehicle, in an area within a residential interior space near the entrance of the residence (e.g., Figure 11 The product is intended to evaporate in a bathroom (as shown) or a toilet to deliver a variety of beneficial effects, such as preventing bacterial growth, freshening, removing odors, or scenting the air in the bathroom. However, it is envisioned that the product could be configured for use in a variety of applications to deliver a freshening composition to provide beneficial effects in interior environments (such as rooms in residential and commercial buildings, or furniture used to store household items), and the air freshener could include, but is not limited to, consumer products such as air fresheners, air fresheners, etc.

[0149] The device is intended to be configured for a variety of applications to deliver volatile compositions to surfaces in the atmosphere and / or interior spaces, provided that the volatile composition evaporates from the device. For the purposes of this disclosure, but not to limit the scope of the invention, the device is described as a non-electrical device.

[0150] The device may also include a delivery member configured to contain a liquid phase of the composition and allow the liquid phase of the composition to evaporate from the delivery member. The delivery member may include a wick, membrane, gel, or a porous or semi-porous substrate, including a felt pad. An exemplary delivery member may be a membrane, which is a semi-permeable material that allows some components of a substance to pass through while blocking others. Of the components that pass through, the membrane slows down the permeation of the components, meaning that some components permeate faster than others. Such components may include molecules, ions, or particles.

[0151] For the purpose of explaining the invention in detail, it is described below in conjunction with a toilet environment and a vehicle environment. However, it should be understood that the invention can be implemented in any interior environment.

[0152] Figure 1 This is a perspective view of a component of an apparatus 2 for containing and filling a volatile composition 13 during assembly, defining an apparatus 1 for delivering the volatile composition according to the invention (exemplary embodiment shown in...). Figure 2 (Middle). Device 2 can be a volatile composition container. Reference Figure 1 and Figure 2The device 2 includes a container 10 containing a reservoir 11 for containing the volatile composition 13. The container 10 may be made of a vapor-impermeable material designed to resist diffusion of the vapor phase of the composition 13. For example, the container 10 may be made of metal, glass, ceramic, porcelain, tile, and plastic, including but not limited to thermoplastics and other known materials suitable for thermoforming, injection molding, and blow molding. A delivery member 12, such as a membrane 12, may be disposed within the container 10 and arranged in fluid communication with the composition 13.

[0153] Figure 2 It shows the horizontal orientation Figure 1 A schematic diagram of assembly equipment 1, wherein the volatile composition 13 is disposed within container 10. See also Figure 2 The container 10 may include an end wall 101, a side wall 102, and an opening 103 defining a reservoir 11 located at a periphery 104 of the side wall 102. For example, if the container 12 is made of thermoplastic, the membrane 12 may be attached to the periphery 104 of the container 10 using conventional heat-sealing methods to contain the volatile composition 13 within the reservoir 11.

[0154] Device 1 can be configured for use in any desired orientation, including but not limited to, such as Figure 3 The vertical orientation is shown. Figure 3 It shows Figure 1 A side view of device 1, wherein device 1 and Figure 1 The device is essentially the same as the device 1, except that the membrane 12 includes a first surface 121 configured to be in fluid communication with the volatile composition 13 and a second surface 122 facing the environment and away from the volatile composition 13.

[0155] Figure 4 A front perspective view of another embodiment of the device 1 according to the present invention is shown. Figure 5 A rear perspective view of device 1 before use is shown. Figure 6 Show Figure 4 and Figure 5 The internal components of device 1. Figure 4 , 5 The device 1 of 6 includes and Figure 1 The device 1 has essentially the same features, but with the additional components described below.

[0156] See Figure 4 and 5Device 1 includes a housing 40 having a front cover 401 and a rear frame 402 defining an interior space. The rear frame 402 has a frame opening 403 (hereinafter referred to as the "opening") located substantially at the center of the rear frame 402. An actuator 404 movable relative to the housing 40 is provided for activating device 1. The actuator 404 may be, for example, a button 404 disposed within the opening 403 (hereinafter referred to as the "button") and movable relative to the rear frame 402 to allow a user to activate device 1. A container 10 containing a volatile composition 13 is located within the housing 40. The front cover 401 includes a window 405 configured to display the container 10.

[0157] refer to Figure 6 When the volatile composition 13 is a liquid volatile composition, the device 1 may include a fractured substrate 60 that is sealably attached to and covers the reservoir 11 to prevent the volatile composition 13 from being released until the device 1 is activated. The fractured substrate 60 may be fractured by actuation of a fracture mechanism 61 positioned adjacent to the fractured substrate 60 to release the volatile composition 13. The fracture mechanism 61 includes a movable member 62 movably attached to an outer frame 63 by a spring member 64. The spring member 64 may be formed of one or more springs 65. One or more fracture elements 66 are arranged within the fracture mechanism 61 to pierce a hole in the fractured substrate 60. The fracture element 66 may be a needle. As described above for Figure 1 As described, membrane 12 is hermetically attached to flange 67 located at periphery 104 of container 10. Membrane 12 encapsulates container 10, volatile composition 13, fracture substrate 60, and fracture mechanism 61. Membrane 12 can be configured to buckle when pressure or actuation is applied to membrane 12 via button 404. In residential interior spaces such as those with a 2m... 3 In a bathroom with an internal space volume of 15cm, membrane 12 can be constructed to include 15cm 2 up to 35cm 2 The evaporation surface area is [not specified], and in order to achieve a compact design of device 1, membrane 12 may include 27 cm². 2 evaporation surface area.

[0158] See Figure 7To activate device 1, the user presses button 404 until it contacts rupture mechanism 61 (through the deflection of membrane 12 in the direction X toward the front end of the container), and rupture element 66 on rupture mechanism 61 punctures fracture substrate 60. Once fracture substrate 60 is punctured, volatile composition 13 flows out of container 10, wets membrane 12, and is then delivered to the surrounding atmosphere by evaporation from membrane 12. Specifically, wetting of membrane 12 occurs when liquid-phase volatile composition 13 contacts and spreads on at least a portion of the first surface 121 of membrane 12. Membrane 12 is configured to prevent liquid-phase volatile composition 13 from flowing out of membrane 12, but allows gaseous-phase volatile composition 13 to evaporate from second surface 122, thus delivering volatile composition 13 to the environment.

[0159] The volatile composition 13 can be delivered via a wick, wherein the wick can be configured to have a variety of different shapes and sizes. For example, the wick can have a cylindrical or elongated cubic shape. The wick can be defined by its length and diameter or width, depending on the shape. The wick can have a variety of lengths. For example, the length of the wick can range from about 1 millimeter (“mm”) to about 100 mm, or from about 5 mm to about 75 mm, or from about 10 mm to about 50 mm. The wick can have a variety of diameters or widths. For example, the diameter or width of the wick can be at least 1 mm, or at least 2 mm, or at least 3 mm, or at least 4 mm. The wick can exhibit a density. The wick density can be about 0.100 g / cm³. 3 The suction core is in the range of approximately 1.0 g / cc to about 1.0 g / cc. The core may comprise a porous or semi-porous substrate. The core may be constructed from a variety of materials and methods, including but not limited to compression and / or shaping into various shapes by an outer covering (such as a nonwoven sheet outer covering) or bundled fibers made of sintered plastics such as PE, HDPE, or other polyolefins. For example, the core may be made from a plastic material such as polyethylene or a polyethylene blend.

[0160] Figure 8 A variation of device 1 for delivering the volatile composition according to the invention is shown. Aside from the housing design, Figure 8 Device 1 includes Figure 4 The components are basically the same as those in device 1. Specifically, Figure 8 Device 1 does not include buttons and has a housing design different from that of housing 40 of device 1, the difference being that, Figure 8 The housing 40 is configured to releasably engage the membrane 12 of the encapsulating container 10 (where the membrane 12 and the container 10 define the delivery engine), such that the device 1 is activated when the delivery engine is inserted.

[0161] also, Figure 9A and 9BThe device 1 for delivering a volatile composition according to the invention is shown in its first position before startup. Figure 9A ) and the second position after startup ( Figure 9B A variant of ). Figure 9A and 9B Device 1 and Figure 4 The difference between device 1 and device 2 is that the actuator 404 is a movable clip 404 for attaching to the exhaust port 900 in a vehicle environment, such as... Figure 9C As shown. The movable clamp 404 is rotatable relative to the housing 40 to move at least a portion of the membrane 12 and the rupture element 66 toward and pierce the ruptureable substrate 60, and to release at least a portion of the volatile composition 13 from the container 10, such that a portion of the volatile composition 13 evaporates from the device 1. It should be understood that the actuator 404 can be configured to move linearly or rotationally using known mechanical methods to move at least a portion of the membrane 12 and the rupture element 66 toward and pierce the ruptureable substrate 60. In a volume of 2m 3 In the vehicle's interior space, membrane 12 may include 7cm 2 Up to 15cm 2 The evaporation surface area. To achieve a compact design of device 1, membrane 12 may include an 11 cm² area. 2 evaporation surface area.

[0162] Figure 10 A variation of device 1 for delivering the volatile composition according to the invention is shown. Figure 10 Device 1 includes and Figure 6 The components are basically the same as those in device 1, except that... Figure 10 The device 1 does not include the button 404, the front cover 401, and the rear frame 402. Figure 10 The device 1 includes a housing 40 having a disc-shaped form and a housing-side opening 44 on one side, allowing the volatile composition 13 to be delivered from one side of the housing 40 through the housing-side opening 44. This configuration of the device 1 has the advantage in interior environments (such as interior spaces) that, if limited table space exists, the device 1 can be attached to a wall surface by using a conventional vacuum suction cup to bring the product 1 close to the wall surface. Alternatively, the device 1 can be horizontally supported on a support in an interior environment by being placed on the bottom surface 42 of the housing 40.

[0163] Figure 11 A front perspective view of a device according to the invention for delivering a volatile composition, used in an interior space 110 (hereinafter referred to as the "entrance interior space") of a residential environment at the entrance. 3The volume, and therefore the device 1 described above, can be configured in any size and shape for the entrance interior space 110. The entrance interior space 110 is also the first point of contact where the user first interacts with the device 1 and experiences the volatile composition 13. The device 1 can be designed as an indoor air freshener product, and therefore has the advantage of being an indoor air freshener product with a volatile composition 13 having a RIS composition according to the invention, in that the user experiences a “just right” fragrance intensity through faster evaporation than the top notes, which evaporate quickly to form an initial impression of the fragrance composition without being overly strong (“too strong a fragrance”), which is very important at the first point of contact.

[0164] The device 1 of the present invention can be configured for a variety of applications to deliver a volatile composition 13 to the atmosphere and / or a surface in a continuous, non-electrical manner, provided that the composition 13 is allowed to evaporate from the membrane 12 into the interior space. Therefore, the specific physical properties of the membrane 12 can be selected based on the specific intended use of the device 1, which is designed to be activated by peeling off a vapor-impermeable substrate 14 or by rupturing the vapor-impermeable substrate 14. Membranes and vapor-impermeable substrates designed for releasable attachment are known and will not be further described. Examples of suitable physical parameters for the applicable membrane 12 and vapor-impermeable substrate 14 for the device 1 designed to be activated by rupturing the vapor-impermeable substrate 14 will be described in the description below.

[0165] Membrane 12 may be a microporous membrane and includes an average pore size of about 0.01 micrometers to about 1 micrometer, about 0.01 micrometers to about 0.06 micrometers, about 0.01 micrometers to about 0.05 micrometers, about 0.01 micrometers to about 0.04 micrometers, about 0.01 micrometers to about 0.03 micrometers, about 0.02 micrometers to about 0.04 micrometers, or about 0.02 micrometers. Additionally, membrane 12 may be filled with any suitable fillers and plasticizers known in the art. Fillers may include silica powder, clay, zeolite, carbonates, charcoal, and mixtures thereof. Examples of filled membranes are ultra-high molecular weight polyethylene (UHMWPE) membranes filled with silica, such as those described in U.S. Patent 7,498,369. Although any suitable filler material and weight percentage may be used, typical filling percentages of silica may be between about 50% to about 80%, about 60% to about 80%, about 70% to about 80%, or about 70% to about 75% of the total membrane weight. Examples of suitable membrane thicknesses include, but are not limited to, about 0.01 mm to about 1 mm, about 0.1 mm to about 0.4 mm, about 0.15 mm to about 0.35 mm, or about 0.25 mm, or different combinations of the upper and lower values ​​above, or any combination of integers within the above ranges. Furthermore, the evaporation surface area of ​​membrane 12 may be about 2 cm². 2 Approximately 100cm 2Approximately 2cm 2 Approximately 25cm 2 Approximately 10cm 2 approximately 50cm 2 Approximately 10cm 2 Approximately 45cm 2 Approximately 10cm 2 Approximately 35cm 2 Approximately 15cm 2 Approximately 40cm 2 Approximately 15cm 2 Approximately 35cm 2 Approximately 20cm 2 Approximately 35cm 2 Approximately 30cm 2 Approximately 35cm 2 Approximately 35cm 2 Or different combinations of the above upper and lower limits, or any combination of integers within the above range. Membrane 12 may include approximately 2 cm. 2 Up to 80cm 2 5cm 2 Up to 54cm 2 6cm 2 Up to 27cm 2 7cm 2 Up to 15cm 2 The evaporation surface area, or any combination of the above upper and lower limits, or any combination of integers within the above range.

[0166] The vapor-impermeable substrate 14 may be made of any material capable of breaking with a predetermined applied force, and may or may not contain elements to aid such breaking, such as a rupture element. In embodiments where the vapor-impermeable substrate 40 is intended to contain composition 13 when device 1 is not in use, the vapor-impermeable substrate 14 may be made of any suitable barrier material that reduces or prevents the evaporation of composition 13. Such materials may be impermeable to both vapor and liquid. Suitable barrier materials for the vapor-impermeable substrate 14 include, but are not limited to, coated or uncoated films, such as polymer films, fiber webs, foils, and composite materials such as foil / polymer film laminates. Examples of foils that can be used as barrier materials are micron-sized aluminum foils comprising nitrocellulose protective varnish, polyurethane primer, and a 15 g / m² polyethylene coating (Lidfoil 118-0092), available from Alcan Packaging. Suitable polymer films include, but are not limited to, polyethylene terephthalate (PET) films, acrylonitrile copolymer barrier films (such as those produced by, for example, INOES under the trade name...). Those for sale), ethylene-vinyl alcohol films, and combinations thereof. It is also envisioned that coated barrier films can be used as vapor-impermeable substrates 14. Such coated barrier films include, but are not limited to, films coated with metallized PET, metallized polypropylene, silica, or alumina.

[0167] The following embodiments are intended to illustrate the invention more fully and

[0168] This is not to be construed as a limitation of the invention, as many variations may be made without departing from the scope of the invention. Unless otherwise specified, all parts, percentages and ratios used herein are expressed as weight percentages.

[0169] Example

[0170] First, the test equipment / materials and test compositions are described under the section on materials, then the test methods are provided, and finally the results are discussed. Data demonstrating that the compositions of the present invention have improved aroma intensity regulation in an internal environment are provided. The equipment and materials used in the "Test Methods" described below are listed in Table 4. The formulations of the compositions of the present invention are provided in Table 5. The compositions are prepared using conventional methods.

[0171] In the following embodiments, the device in which each test composition and the composition of the present invention are evaluated is designed as a consumer product. The consumer product may be an automotive air freshener product (such as...) Figure 9A , Figure 9B (As shown), it is used to evaporate a freshening composition in the interior space of a vehicle to deliver a variety of beneficial effects, such as fragrance intensity control. Consumer products can also be indoor air freshener products (such as...) Figure 4 As shown), this invention relates to the evaporation of a freshening composition in a room within a home, such as a bathroom. Therefore, the device and materials have been designed to simulate the conditions within a vehicle interior and a room interior. However, it is envisioned that the device can be configured for various applications to deliver the volatile composition to provide beneficial effects in interior environments (such as furniture used to store personal belongings in homes and commercial buildings), and the product may include, but is not limited to, consumer products such as air fresheners, air fresheners, deodorizers, etc. Therefore, in different applications such as shoe cabinets (where the interior environment has different volumes), it should be understood that the device, materials, and methods can be modified accordingly to demonstrate that the freshening composition of the invention exhibits improved fragrance intensity modulation in interior environments of different volumes.

[0172] Test methods

[0173] A. Headspace Collection Test Method

[0174] A top-space sampling test method is used to collect volatile raw materials evaporated into an interior space or environment as defined below, and the following steps are performed:

[0175] 1) Activate the device to allow the release of fragrance.

[0176] 2) Place the device in the selected enclosed environment.

[0177] a. Car Simulation: Room volume is 2m 3 Three different temperature settings, 5°C, 21°C, or 35°C, each containing a heater, fan, or air control unit, but not turned on.

[0178] b. Bathroom simulation: Room volume is 2m² 3 Three different temperatures: 5℃, 21℃, or 35℃

[0179] 3) Keep the device upright for 1 hour

[0180] 4) Use Tenex pipes at different contact points to collect indoor overhead space.

[0181] a. Car Simulation: 2-minute capture time, 2 different contact points – upon entering the room and 7 minutes after the heater, cooler, or fan has been turned on.

[0182] b. Bathroom simulation: Data collection time 1 minute, 1 contact point – upon entering the room

[0183] B. Headspace analysis by gas chromatography-mass spectrometry (GC-MS)

[0184] The collected top space was analyzed using GC-MS to identify (based on characteristic retention time and m / z value) and quantify (based on normalized peak integral area) the distinctly different fragrance raw materials (PRMs) that had evaporated. PRMs were classified as top, middle, base, or bulk materials. Top, middle, and base notes were defined as PRMs with saturated vapor pressures above 0.3 Torr, between 0.03 Torr and 0.3 Torr, and below 0.03 Torr, respectively, at 25 °C. PRMs present at a weight percentage greater than 7% and an odor detection threshold greater than 11 were classified as bulk materials, regardless of vapor pressure.

[0185] The percentage of pre-adjustments in all evaporated PRM is calculated based on the following equation (1):

[0186]

[0187] Similar calculations can be performed to find the percentages of mid-tones and post-tones.

[0188] C. Methods for measuring spice weight loss

[0189] The device of the present invention is characterized in that, once the device is activated and subsequently for an extended period of time, the fragrance mixture is lost from the volatile composition. To determine the effectiveness of the RIS composition in improving the delivery of the fragrance mixture, the amount of fragrance mixture released from the device may be observed. Therefore, it is important to measure this value. For any volatile composition that wets the membrane, the ideal evaporation of the composition occurs within the fully exposed membrane. To determine the effectiveness of the RIS composition, the percentage of weight loss of the fragrance mixture in a first volatile composition (having the fragrance mixture with the RIS composition) and a second volatile composition (having the same fragrance mixture without the RIS composition) will be observed. However, the volatile composition can constitute any amount of material.

[0190] To calculate the values ​​detailed in this article, the following items are required:

[0191] 1. Balance (name: Ohaus AA210 S / N 11131122540) or equivalent.

[0192] 2. The outer casing of the present invention, including the first wall and the second wall.

[0193] 3. A device containing a 5.5ml fragrance composition (such as...) Figure 4 (As shown). A device containing 2 ml of the flavoring composition (such as...) Figure 9A (As shown). (If adding flavoring composition by weight, multiply the measured density by 5.5 ml or 2 ml to obtain the accurate fill weight.)

[0194] 4.3M Scotch Weld Applicator TC and adhesive, #3797-TC or equivalent.

[0195] 5. An evaporator rack or an equivalent open tray (for ovens) rack, with a top cover and shelf spacing of 15cm or longer.

[0196] 6. A room that houses an evaporator with the following measurements, airflow, temperature / relative humidity, or equivalent:

[0197] a) Laboratory dimensions: 32 feet 4 inches long x 72 inches wide x 108 inches high or 1,730 feet 3

[0198] b) Airflow (intake and exhaust)

[0199] • Normal mode: Average intake air supply: 103.75ft 3 / min±6%

[0200] • Average exhaust: 149.25ft 3 / min±6%

[0201] • Negative pressure difference result: -45.5

[0202] Negative pressure means that the air supplied to the laboratory and from adjacent corridors or rooms is exhausted through the ventilation system.

[0203] c) Temperature and relative humidity %

[0204] Average temperature: 23° ± 0.1°C

[0205] • Average relative humidity %: 45% ± 0.5%

[0206] Determine the percentage of cumulative weight loss of the spice blend.

[0207] 1. The volatile composition is loaded into the device in a sealed container that is not yet wetted. For example, the volatile composition container can be punctured by cutting a hole in it to allow insertion of an 18-gauge needle.

[0208] 2. Fill with 5.5ml of the flavoring composition. Figure 4 The equipment. This is equivalent to 5024 mg of standard flavoring composition. Fill with 2 ml of flavoring composition. Figure 9A The device contains 2 ml, which is equivalent to 1.9 grams. Volume adjustments may be necessary based on the density of the composition of interest.

[0209] 3. Seal the insertion hole with hot melt adhesive.

[0210] 4. Measure and record the weight of the equipment to three significant figures.

[0211] 5. Insert the box into the housing and ensure that the box is correctly positioned inside the housing to ensure proper airflow.

[0212] 6. Activate the device to wet its membrane. In this article, for Figure 4 The device, by pressing Figure 4 This type of activation is achieved through the activation button. For Figure 9A The device, by moving the clip from the first position before activation ( Figure 9A Move to the second position after activation. Figure 9B For example, the device can be activated by rotating it 90 degrees relative to a first position. However, equivalent means of activating and wetting the membrane may exist.

[0213] 7. Select a time and measure (in mg) while recording the box weight daily for at least thirty days.

[0214] 8. Use the recorded time and its corresponding weight to determine the percentage of cumulative weight loss of the volatile composition as previously detailed.

[0215] Example I - Comparison and the Fragrance Composition of the Invention

[0216] The fragrance mixture of the PRMs shown in Table 8 (“Fragrance Mixture A”) is combined with the exemplary RIS compositions shown in Table 9 to form Composition B of the present invention for evaluating the MOI of the volatile composition according to Equation (I) described above. However, it should be understood that any PRM capable of changing from a solid and / or liquid phase to a gaseous phase can be used.

[0217] Table 8 – Spice Mixtures A

[0218]

[0219] Table 9 – Exemplary RIS Compositions

[0220]

[0221] Table 10 below lists the MOI of each of the fragrance composition B of the present invention and the comparative fragrance composition C at 35°C.

[0222] Table 10

[0223]

[0224] The MOI at 35℃ is 1.70 × 10⁻⁶. 4 The fragrance composition B of the present invention shows that adding the RIS composition in an amount of 90% by weight of the composition reduces the aroma intensity (MOI) by about 85%, i.e., the MOI reduction efficiency is 85% (MOI value relative to comparative fragrance composition A (1.09 × 10⁻⁶)). 5 (lower), thus improving fragrance delivery in the interior space, especially at the first point of contact.

[0225] Example II

[0226] Example II demonstrates that the RIS composition and PRM function to provide a reduced vapor release rate of the PRM according to the invention. It should be understood that the first RIS component, the second RIS component, and the third RIS component can be formulated in the RIS composition at any level. Specifically, each of the first RIS component, the second RIS component, or the third RIS component can be any effective amount suitable for adjusting the aroma intensity of a volatile composition comprising a fragrance mixture.

[0227] Specifically, the results in Example II demonstrate that even when different flavoring mixtures are used to formulate volatile compositions containing RIS components of equal levels (first, second, and third), and the RIS compositions are at the same level by weight of the volatile compositions, based on... Figure 12 The slope L and Figure 13 The same gradient in the slope P in the graph also achieves the same technical result of improved aroma characteristics. Furthermore, it can be seen from the different gradients of the slope in the graph that when evaporation is driven by vapor pressure, the composition of the present invention containing RIS components evaporates preferentially relative to their respective targets - top notes, middle notes and base notes, and therefore reduces the evaporation rate and thus the aroma intensity at all temperatures and airflows compared to the comparative composition containing only fragrance.

[0228] Table 11 below lists the components in the comparative samples and the samples of the present invention evaluated according to test method E for four consecutive weeks, and the fragrance evaporation results are listed in Table 12. Figure 12 The figure is shown below. Table 13 lists the components in the comparative sample and the sample of the present invention evaluated according to test method C for four consecutive weeks, and the fragrance evaporation results are listed in Table 14 and below. Figure 13 As shown in the diagram.

[0229] Figure 12 and Figure 13 To plot the spice weight loss measurements of the comparative and present invention samples relative to four consecutive weeks, a line was plotted for each of the comparative and present invention samples to combine the peak spice weight loss in the first week with the spice weight loss in the fourth week to define a gradient slope. Figure 12 and Figure 13 And the markings in the table below. As shown below, the slope gradient is calculated for each slope. A slope with a higher slope gradient value corresponds to a steeper slope relative to a slope with a lower slope gradient value.

[0230] Table 11– Figure 12 Comparative sample and the present invention sample

[0231] By weight of the composition Comparison Sample 1 Comparison Sample 2 Invention Sample 3 Invention Sample 4 Spice Mixture X 100％ 40％ 70％ 40％ RIS compositions in Table 9 - - 30％ 60％ equipment Figure 9A equipment Figure 9A equipment Figure 9A equipment Figure 9A equipment membrane evaporation surface area <![CDATA[11cm 2 ]]> <![CDATA[11cm 2 ]]> <![CDATA[11cm 2 ]]> <![CDATA[11cm 2 ]]>

[0232] Table 12 – Results

[0233]

[0234] refer to Figure 12The slope J of Comparative Sample 1 has a similarly steep gradient as the slope K of Comparative Sample 2, even though the level of the fragrance mixture X in Comparative Sample 2 is reduced by 50%. Specifically, the slope gradient of slope J is 145, and the slope gradient of slope K is 135. The steep gradient indicates that the aroma intensity of Comparative Sample 2 is not significantly reduced. In contrast, the slope L of Sample 3 of the present invention has a gentler gradient (slope gradient of 89) relative to the gradients of slope J and slope K, indicating that the aroma intensity decreases throughout the duration when the RIS composition is added to the volatile composition at an amount of 30% by weight of the volatile composition. Furthermore, when the RIS composition is added to Sample 4 of the present invention at an amount of 60% by weight of the volatile composition, the gradient of slope M is reduced relative to Sample 3 of the present invention (slope gradient of 42).

[0235] Table 13– Figure 13 Comparative sample and the present invention sample

[0236]

[0237] Table 14 - Results

[0238]

[0239] refer to Figure 13 The slopes N and O of Comparative Samples 5 and 6 show a similar gradient pattern to Comparative Samples 1 and 2, namely a steep gradient, meaning that the change in slope gradient is relatively small as the level of the flavor mixture Y in Comparative Sample 5 decreases. In contrast, the slopes P and Q of Samples 7 and 8 of the present invention have gentle gradients, respectively, indicating a decrease in flavor weight loss and a corresponding decrease in aroma intensity. Furthermore, when the RIS composition is added to Sample 8 of the present invention in an amount of 60% by weight of the volatile composition, the gradient of slope Q (slope gradient 27) decreases relative to Sample 7 of the present invention (slope gradient 62).

[0240] In summary, the above-described results of the inventive compositions according to the present invention demonstrate that providing the inventive air-freshening product according to the present invention in an internal environment achieves the technical effect of providing improved fragrance delivery by reducing fragrance intensity at high temperatures. Therefore, by preventing high fragrance intensity at the first point of contact, the fragrance characteristics can be more consistent, and the lifespan of the air-freshening composition can be increased, thereby achieving the dual beneficial effects of freshness and product lifespan in an internal environment. The PRMs used to prepare fragrance mixtures X and Y have not been disclosed by the manufacturer. However, it should be understood that fragrance mixtures X and Y contain different combinations of PRMs, and since the slopes of the comparative samples are similar on their gradients, it can be assumed that any PRM capable of transitioning from a solid and / or liquid phase to a gaseous phase can be used.

[0241] The dimensions and values ​​disclosed herein should not be construed as strictly limited to the precise numerical values ​​cited. Rather, unless otherwise specified, each such dimension is intended to represent the stated value and a range around which it is functionally equivalent. For example, a dimension disclosed as “40 mm” is intended to represent “approximately 40 mm”.

[0242] Unless expressly excluded or otherwise limited, every reference cited herein, including any cross-references or related patents or patent applications, and any patent application or patent claiming priority to or benefiting from it, is incorporated herein by reference in its entirety. Reference to any reference is not an endorsement of it as prior art to any disclosed or protected art herein, nor is it an endorsement of any such invention, either on its own or in combination with any one or more references. Furthermore, where any meaning or definition of a term in this invention conflicts with any meaning or definition of the same term in referenced documents, the meaning or definition given to that term in this invention shall prevail.

[0243] While specific embodiments of the invention have been illustrated and described, it will be apparent 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. Therefore, it is intended that all such changes and modifications falling within the scope of the invention be covered in the appended claims.

Claims

1. A fragrance intensity modifying composition (RIS composition), wherein the RIS composition comprises: At least 5% by weight of the RIS composition is a first aroma intensity modifying component (RIS component) with an average vapor pressure (VP) greater than 0.3 Torr at 25°C. At least 20% by weight of the second RIS component having an average VP of 0.07 Torr to 0.3 Torr at 25°C; and At least 10% by weight of the RIS composition a third RIS component having an average VP of 0.0099 Torr to 0.07 Torr at 25°C; Each of the first RIS component, the second RIS component, and the third RIS component is characterized by an odor detection threshold (ODT) greater than 20 ppb.

2. The RIS composition according to claim 1, wherein the RIS composition is characterized by being less than or equal to 1 × 10⁻⁶. 4 The molar olfactory index (MOI) at 35°C.

3. The RIS composition according to any one of the preceding claims, wherein the first RIS component is an alcohol-containing compound.

4. The RIS composition according to claim 3, wherein the first RIS component is selected from the group consisting of: 3-methoxy-3-methylbut-1-ol (MMB), 3-methylbut-2-ol, but-1-ol, 2,3-dimethylbut-2-ol, 1-methoxyprop-2-ol, 2-methylbut-2-ol, 3-methylbut-1-ol, hex-1-en-3-ol, 2-ethylbut-1-ol, 4-methylpent-1-ol, 3-methylpent-1-ol, ethyl 2-hydroxypropionate, 2-butoxyethanol, ethyl 3-hydroxybutyrate, and mixtures thereof.

5. The RIS composition according to claim 1, wherein the second RIS component is an ester-containing compound.

6. The RIS composition according to claim 5, wherein the second RIS component is selected from the group consisting of: dimethyl adipate (DMA), ethyl 3,5,5-trimethylhexanoate, dimethyl succinate, diethyl malonate, ethyl 3-acetoxyhexanoate, methyl 5-acetoxyhexanoate, 3-O-butyl malonate, dipropyl-2-yl adipate, methyl (4-methoxyphenyl) formate, ethyl 3-hydroxyhexanoate, and mixtures thereof.

7. The RIS composition according to claim 1, wherein the third RIS component is an alcohol-containing compound.

8. The RIS composition according to claim 7, wherein the third RIS component is selected from the group consisting of: 1-(3-methoxypropoxy)prop-1-ol (DPM), 2-(2-methoxyethoxy)ethanol, methyl 2-hydroxybenzoate, 6,8-dimethylnon-2-ol, 2-phenoxyethanol, 4-oxa-1,6-hexanediol, 1-(1-methyl-2-propoxyethoxy)prop-2-ol, 1-(2-butoxy-1-methoxy)prop-2-ol, and mixtures thereof.

9. The RIS composition of claim 1, wherein the RIS composition comprises: The first RIS component comprises 5% to 30% by weight of the RIS composition; The second RIS component comprises 20% to 50% by weight of the RIS composition; and The third RIS component comprises 10% to 45% by weight of the RIS composition.

10. A volatile composition comprising a fragrance-containing hydrophobic material and a RIS composition according to any one of the preceding claims.

11. The volatile composition of claim 10, wherein the volatile composition is characterized by a reduction efficiency of at least 10% MOI at 35°C.

12. The volatile composition of claim 10, wherein the fragrance-containing hydrophobic material comprises more than 0.01 CLogP.

13. The volatile composition of claim 10, wherein the volatile composition comprises: The RIS composition comprises at least 20% by weight of the volatile composition.

14. The volatile composition of claim 10, wherein the fragrant hydrophobic material is a fragrance mixture comprising one or more nonfunctional fragrance ingredients selected from the group consisting of volatile aldehydes, ketones, and mixtures thereof.

15. The volatile composition according to claim 10, wherein the volatile composition is a fragrance composition.

16. The volatile composition of claim 10, wherein the volatile composition is a refreshing composition.

17. The volatile composition of claim 16, wherein the volatile composition is an air-freshening composition for delivering fragrance in an interior space; wherein the air-freshening composition is contained in a non-electrically powered air freshener.

18. An apparatus for delivering a volatile composition, the apparatus comprising: The volatile composition according to any one of claims 10 to 17; A reservoir for containing the volatile composition, the reservoir including an opening; The volatile composition comprises a liquid phase; and A delivery member configured to contain the liquid phase of the volatile composition and to allow the liquid phase of the volatile composition to evaporate from the delivery member.

19. The device of claim 18, wherein the delivery member is selected from the group consisting of: wick, membrane, gel, porous or semi-porous substrate.

20. The device of claim 19, wherein the delivery member is a microporous membrane.

21. A flavoring composition comprising: spice blends; and Fragrance intensity modifying composition (RIS composition), said RIS composition comprising: At least 5% by weight of the RIS composition is a first aroma intensity modifying component (RIS component) with an average vapor pressure (VP) greater than 0.3 Torr at 25°C. At least 20% by weight of the second RIS component having an average VP of 0.07 Torr to 0.3 Torr at 25°C; and At least 10% by weight of the RIS composition a third RIS component having an average VP of 0.0099 Torr to 0.07 Torr at 25°C; Each of the first RIS component, the second RIS component, and the third RIS component is characterized by an odor detection threshold (ODT) greater than 20 ppb.

22. The fragrance composition according to claim 21, wherein the first RIS component is 3-methoxy-3-methylbut-1-ol (MMB), the second RIS component is dimethyl adipate (DMA), and the third RIS component is 1-(3-methoxypropoxy)prop-1-ol (DPM).

23. An air-freshening composition comprising a fragrance mixture and a fragrance intensity modifying composition (RIS composition), the RIS composition comprising: at least 5% by weight of 3-methoxy-3-methylbut-1-ol (MMB); at least 20% by weight of dimethyl adipate (DMA) by weight of the RIS composition; and at least 10% by weight of 1-(3-methoxypropoxy)prop-1-ol (DPM) by weight of the RIS composition.

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