Apparatus and compositions for improving flavour delivery

Abstract

A volatile composition having: (i) greater than 30% by weight of the volatile composition of a hydrophobic material with a fragrance, wherein the hydrophobic material with a fragrance comprises one or more volatile compounds; and (ii) greater than 20% by weight of the volatile composition of a regulating intensity of scent (RIS) composition. The RIS composition has at least two of: a first regulating intensity of scent component (RIS component) having a high average vapor pressure (VP); a second RIS component having a medium average VP; and a third RIS component having a low average VP; an average VP of each of the one or more volatile compounds being lower than at least one of the high average VP, the medium average VP, and the low average VP of the first RIS component, the second RIS component, and the third RIS component at the same temperature.

Description

Technical Field

[0001] The present invention relates to a device and a volatile composition comprising a fragrance intensity modulating composition for improving fragrance delivery in an interior space. Background Art

[0002] Devices for dispensing volatile materials are well known and are commonly used to deliver benefits such as air freshening, odor removal, or scenting the air within spaces such as rooms or enclosed spaces such as restrooms or vehicle passenger compartments in homes and commercial establishments.

[0003] For example, air freshening products have been designed to dispense volatile materials, such as volatile compositions containing one or more volatile materials, such as fragrance oils. The volatile composition can be contained and dispensed by a system, such as by evaporating the volatile composition from a film-based, wick-based, and gel-based system. However, a problem with such air freshening products is that the evaporation rate of the volatile composition is often inconsistent over the life of the product, i.e., a high evaporation rate of the volatile composition at the beginning of product use and a low evaporation rate at the end of the product's life.

[0004] Specifically, volatile compositions typically contain a mixture of highly volatile compounds and other volatile compounds with lower volatility ("low volatility compounds"). High volatility compounds typically have a higher vapor pressure than low volatility compounds. Specifically, at a given temperature, high volatility compounds with higher vapor pressures evaporate more easily than low volatility compounds with lower vapor pressures. In use, high volatility compounds tend to evaporate faster at the beginning of use of such products, while low volatility compounds evaporate later, resulting in overall inconsistent fragrance intensity and fragrance characteristics of the volatile composition over the life of the product. A high initial evaporation rate can result in an overly strong initial fragrance intensity, which can create a perception that the air freshener product has different fragrance intensities during the life of the product or that the product is no longer effective after the initial fragrance intensity is no longer present.

[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 contact point"), which can be any part or room of a vehicle, residential building, commercial building, or residential / commercial building.

[0006] Often, the air at the first point of contact is a mixture of pre-existing or predominant odors in the interior space. This can create an unpleasant first point of contact for the user upon entry (i.e., at the entrance to the interior space). Furthermore, especially when entering an interior space, an unpleasant first point of contact can also negatively impact subsequent interactions and activities within the interior space.

[0007] In some cases, carriers such as solvents and diluents are used to slow down the evaporation rate of volatile compositions, for example, volatile freshening compositions. In highly volatile freshening compositions, high levels of carriers can be used to slow down the evaporation of the freshening composition. Adding carriers and other materials to slow down the evaporation rate of the freshening composition can significantly reduce the level of the fragrance raw materials in the freshening composition, or can change the characteristics and fragrance intensity of the freshening composition.

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

[0009] The present invention relates to a volatile composition comprising:

[0010] (i) greater than 30% by weight of the volatile composition of a scented hydrophobic material, wherein the scented hydrophobic material comprises one or more volatile compounds; and

[0011] (ii) greater than 20%, by weight of the volatile composition, of a modified fragrance intensity (RIS) composition, wherein the RIS composition comprises at least two of:

[0012] a first aroma intensity modulating component (RIS component) having a high average vapor pressure (VP);

[0013] a second RIS component with a moderate mean VP; and

[0014] a third RIS component with low mean VP;

[0015] The average VP of each of the one or more volatile compounds is lower than at least one of a high average VP, a medium average VP, and a low average VP of the first, second, and third RIS components at the same temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of components of an apparatus for delivering a volatile composition according to the present invention;

[0017] Figure 2 For the time Figure 1 a side cross-sectional view of the device shown in a horizontal orientation when placed on a support;

[0018] Figure 3 For the time Figure 1 a side cross-sectional view of the apparatus shown in a vertical orientation when placed on a support;

[0019] Figure 4 is a front perspective view of a variation of an apparatus for delivering a volatile composition according to the present invention;

[0020] Figure 5 for Figure 4 a rear perspective view of the device;

[0021] Figure 6 for Figure 4 A perspective view of components of the device;

[0022] Figure 7 for Figure 4 A side sectional view of the device;

[0023] Figure 8 is a variation of the device for delivering a volatile composition according to the present invention;

[0024] Figure 9A is a side cross-sectional view of a variation of the device for delivering a volatile composition according to the present invention prior to activation;

[0025] Figure 9B for Figure 9A A side sectional view of the device after startup;

[0026] Figure 9C For use in a vehicle environment Figure 9A and 9B A front perspective view of the device;

[0027] Figure 10 is a variation of the device for delivering a volatile composition according to the present invention;

[0028] Figure 11 is a front perspective view of a device for delivering a volatile composition according to the present invention for use within an interior space of a residential environment at an entryway.

[0029] Figure 12 To plot the results of fragrance evaporation over time for a comparative composition (fragrance mixture X only) and a composition of the present invention (RIS composition and fragrance mixture X);

[0030] Figure 13 To plot the results of fragrance evaporation over time for a comparative composition (fragrance mixture Y only) and a composition of the present invention (RIS composition and fragrance mixture Y);

[0031] Figure 14A and Figure 14B To plot the percentage of fragrance raw materials (PRMs) evaporated from Inventive Sample 10 and Comparative Sample 9 in a vehicle interior under parked conditions;

[0032] Figure 15A and Figure 15B A graph plotting the percentage of fragrance raw materials (PRMs) evaporated from Inventive Sample 11 and Comparative Sample 12 under driving conditions in a vehicle interior;

[0033] Figure 16A and Figure 16B A graph plotting the percentage of fragrance raw materials (PRMs) evaporated from Inventive Sample 13 and Comparative Sample 14 under driving conditions in a vehicle interior; and

[0034] Figure 17A and Figure 17B Graph plotting the percentage of fragrance raw materials (PRMs) evaporated from Inventive Sample 15 and Comparative Sample 16 in a residential interior space under ambient air flow conditions. DETAILED DESCRIPTION

[0035] The present invention relates to devices and volatile compositions comprising a fragrance intensity modulating composition (hereinafter "RIS composition") for improving fragrance delivery in interior spaces.

[0036] Fragrance raw materials (hereinafter referred to as "PRMs") are generally used to provide fragrance in volatile compositions. Specifically, volatile compositions generally contain a mixture of highly volatile PRMs and other volatile PRMs with lower volatility. High volatility PRMs generally have a higher vapor pressure than low volatility PRMs. Specifically, at a given temperature, high volatility PRMs with higher vapor pressures evaporate more easily than low volatility compounds with lower vapor pressures. However, due to the vapor pressure of the PRMs, high volatility PRMs tend to evaporate faster at the beginning of use of such products, while low volatility PRMs evaporate later, resulting in overall inconsistent fragrance intensity and fragrance characteristics of the volatile composition over the life of the product. A high initial evaporation rate can result in an overly strong initial fragrance intensity, which can create a perception that the air freshener product has different fragrance intensities during the life of the product or that the product is no longer effective after the initial fragrance intensity is no longer present.

[0037] The present invention is based on the surprising discovery that a volatile composition comprising greater than 30% by weight of the volatile composition of a fragranced hydrophobic material, wherein the fragranced hydrophobic material comprises one or more volatile compounds; and greater than 20% by weight of the volatile composition of a regulating intensity of scent (RIS) composition, can deliver the one or more volatile compounds at a reduced initial evaporation rate and intensity of scent over time, without being affected by the temperature and / or air flow from the environment (i.e., the interior space in which the volatile composition is placed). The volatile composition of the present invention having the combination of fragranced hydrophobic material and RIS composition at the claimed levels does not significantly alter the scent profile of the volatile composition, while delivering a reduced intensity of scent, as shown in the results described below in the Examples, resulting in improved scent delivery.

[0038] The RIS composition comprises at least two of: a first regulating intensity of scent component (RIS component) having a high average vapor pressure (VP); a second RIS component having a medium average VP; and a third RIS component having a low average VP; wherein each compound of the one or more volatile compounds has an average VP that is lower than at least one of the high average VP, the medium average VP, and the low average VP of the first RIS component, the second RIS component, and the third RIS component at the same temperature.

[0039] The RIS composition of the present invention can comprise at least two of: a first intensity of scent 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) of greater than 20 ppb, which component can be added to a volatile composition comprising a PRM to deliver the PRM at a reduced initial evaporation rate and intensity of scent over time, without being affected by the temperature and / or air flow from the environment (i.e., the interior space in which the volatile composition is placed).

[0040] The technical effect of a RIS composition having at least two of the first RIS component, the second RIS component, and the third RIS component, each RIS component having a different average vapor pressure at 25°C, rather than a single RIS component, is that each of the at least two RIS components can act individually to slow the respective evaporation rate of each volatile compound in the volatile composition that has a different individual vapor pressure. Specifically, the first RIS component can evaporate faster than a first volatile compound having a vapor pressure less than 0.3 torr at 25°C to slow the evaporation rate of the first volatile compound. Thus, the second RIS component can evaporate faster than a second volatile compound having a vapor pressure less than 0.07 torr at 25°C and the third RIS component can evaporate faster than a third volatile compound having a vapor pressure less than 0.0099 torr at 25°C.

[0041] The volatile compounds can be designed to evaporate to provide a benefit effect in the interior space. One or more of the volatile compounds can be a benefit agent for delivering a benefit effect in the interior space. The benefit agent can include, but is not limited to, a perfume for providing a fragrance benefit effect, a deodorant for removing malodor. The technical effect of slowing the evaporation rate of the volatile compounds is the ability to control the release of the benefit effect of the volatile components. Further, by having an odor detection threshold (ODT) greater than 20 ppb, each of the RIS components is designed to be odorless.

[0042] For the purpose of detailing the present application, the RIS compositions described below are used to formulate volatile compositions with perfume raw materials (PRMs) to deliver a fragrance benefit effect in an interior space, and thus the volatile compositions are described as perfume compositions. The RIS compositions can also be used to formulate volatile compositions with PRMs for freshening air in an interior space in a continuous non-powered manner, and thus the volatile compositions are described as air freshening compositions. However, it is contemplated that the RIS compositions can be configured for various applications to deliver a benefit effect in an interior space. Prior to describing the present application in detail, the following terms are defined for clarity. Terms not defined shall have their ordinary meaning as understood by one of skill in the relevant art.

[0043] 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 9,827,342 B2, published on November 28, 2017, in the name of The Procter & Gamble Company (hereinafter referred to as "U.S. Patent 9,827,342"). Specifically, the ODT of a single fragrance raw material (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 using software named "winMolconn", release version - 1.0.1.3, which is commercially available and provided by the software vendor - Hall Associates Consulting, Quincy, Mass., USA at www.molconn.com.

[0044] As used herein, "Molar Olfactory Index (MOI)" refers to an index that quantifies the odor intensity of a material as a value based on the equation described below. A composition having a higher MOI value is associated with a higher odor intensity relative to another composition having a lower MOI value. Thus, a fragrance composition having a higher MOI value corresponds to a higher fragrance intensity relative to another fragrance composition having a lower MOI value.

[0045] 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 for use in a freshening composition can be more conveniently given as its logarithm to base 10, LogP. ClogP is determined by a model that calculates the octanol-water partition coefficient (logP or logKow) of a general organic molecule directly based on its molecular structure. LogP is a measure of the distribution of a solute between two immiscible liquid phases (octanol and water) and is generally used as a relative measure of the hydrophobicity of a solute. One method of calculating the LogP of a PRM is to use the ACD / Labs LogP software module available from Advanced Chemistry Development, Inc. Details of the logP calculation can be found on the ACD / Labs website (https: / / www.acdlabs.com / products / percepta / predictors / logp / ). The LogP values ​​of the PRMs were calculated using the ACD / Labs LogP software module and used to select PRMs useful in the present invention, as described in the Examples below. However, it should be understood that another suitable method for measuring LogP is to use the "ClogP" program available from BioByte Corp (e.g., ClogP Version 4.0 and Manual, 1999). CLOG P User's 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 available from Daylight Chemical Information Systems, Inc. of Alison Viejo, CA. CLOGP Reference Manual, Daylight Version 4.9, Release Date February 1, 2008.

[0046] As used herein, "horizontal orientation" refers to the positioning of an air freshening product according to the present invention wherein the film faces the environment in either an upward or downward orientation.

[0047] "Interior space" refers to a space of finite volume within an environment, including but not limited to a residential, commercial, or vehicular environment. An interior space can be a room in a residential or commercial environment, such as a bathroom. A bathroom can include a bathroom, toilet, a bathroom with a toilet, or a dressing room. An interior space can also be an enclosed space, such as furniture used to store personal items, including but not limited to shoe cabinets, wardrobes, and gym lockers.

[0048] As used herein, "membrane" refers to a semipermeable material that allows some components of a substance to pass through but blocks other components. Of the components that do pass through, the membrane slows the permeation of the components, i.e., some components permeate faster than others. Such components may include molecules, ions, or particles.

[0049] As used herein, "microporous membrane" refers to a material having a network of pores.

[0050] As used herein, "natural convection" refers to a type of flow in which a liquid (such as water) or a gas (such as air) moves, wherein the fluid motion is not generated by any external source (such as a pump, fan, suction device, etc.), but some parts of the fluid are heavier than other parts.

[0051] "Non-powered" 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, a gas source, or an electrical current source. The product can also be configured as a powered device. An exemplary powered device can be an electrical device. The powered device can be an outlet in an electric car or a battery-powered air freshener having a wick and / or membrane as described below to deliver and / or evaporate the freshening composition; or other heating devices (e.g., devices powered by a chemical reaction such as a catalytic fuel system; solar power devices, etc.).

[0052] As used herein, the term "permeable material" refers to any material that allows liquids or gases to pass through, and includes, but is not limited to, drywall, wallpaper, wood, vinyl, plastic, plaster, wallboard, fabric, decorative materials, paper, woven fabrics, natural polymers, synthetic polymers, and inorganic materials, and mixtures thereof. Permeable material may also include residue formed on any inanimate surface, and includes, but is not limited to, dust particles or grease on inanimate surfaces.

[0053] As used herein, the term "inanimate surface" is meant to include, but is not limited to, fabrics, carpets, household surfaces such as floors, walls, carpet padding, towels, and the like.

[0054] As used herein, "vertical orientation" refers to an orientation of an air freshening product according to the present invention wherein the membrane faces the environment in either a forward-facing orientation or a rearward-facing orientation.

[0055] As used herein, the term "volatile composition" refers to a substance that can evaporate at room temperature and atmospheric pressure without the need for an additional energy source. The composition can be configured for a variety of uses, including but not limited to air freshening, deodorization, odor elimination, malodor counteracting, pest control, insect control, insect repellent, medicaments / pharmaceuticals, disinfectants, sanitization, mood enhancement, aromatherapy aids, compositions with fragrance, compositions without fragrance, or any other use of a fresh composition that is required to condition, modify or otherwise change the atmosphere or environment. In addition, not all component substances of the composition are necessarily volatile. Any suitable composition can be used in any amount or in any form (including liquid, solid, gel or emulsion). Materials 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 as being "delivered," "emitted," or "released" herein, this refers to the volatilization of its volatile components and does not require that its non-volatile components be emitted.

[0056] As used herein, "fragrance composition" includes fragrance compositions comprising one or more fragrance raw materials (PRMs) intended to treat (eg, eliminate or reduce / minimize malodors), deliver a pleasant scent, and / or freshen the air in interior spaces.

[0057] As used herein, "freshening composition" means a composition that includes a fragrance composition.The freshening composition may be used with or without a device for delivering the freshening composition.

[0058] As used herein, "touchpoint" refers to a point of contact or interaction between a volatile composition and a consumer of the volatile composition.

[0059] Unless otherwise indicated, all percentages, parts, and ratios are based on the total weight of the compositions of the present invention. Unless otherwise indicated, all such weights referring to listed ingredients are based on the active level and, therefore, do not include solvents or by-products that may be included in commercially available materials. As used herein, the term "weight percent" may be expressed as "wt %." As used herein, unless otherwise indicated, all molecular weights are weight average molecular weights, expressed in grams per mole.

[0060] I. Volatile composition

[0061] The volatile composition according to the present invention comprises a fragrance-bearing hydrophobic material and a RIS composition. Preferably, the volatile composition is substantially free of a carrier.

[0062] The total weight ratio of the RIS composition to the scented hydrophobic material can be formulated in an effective weight ratio to achieve a desired scent intensity profile.

[0063] The volatile composition may be a fragrance composition, preferably a freshening composition, more preferably an air freshening composition for delivering fragrance in an interior space. The air freshening composition may preferably be included in a non-powered air freshener, more preferably in a continuous non-powered air freshener.

[0064] The volatile composition may comprise an effective amount of a RIS composition suitable for modulating fragrance intensity.The volatile composition may comprise at least 20%, preferably 20% to 90%, more preferably 30% to 80% RIS composition by weight of the volatile composition.

[0065] The technical effect of providing the RIS composition in the volatile composition is to reduce the fragrance intensity of the scented hydrophobic material to improve the fragrance experience in the interior space, particularly at the first contact point at all temperatures and air flow rates.

[0066] Specifically, when a RIS composition is designed for use in a perfume composition comprising a mixture of note groups (top notes, middle notes, base notes), each of the RIS components can be selected based on its average vapor pressure so as to slow the evaporation rate of each corresponding target note group by evaporating faster than the corresponding target note group. Table 1 below shows exemplary RIS components with their corresponding target note groups and vapor pressures.

[0067] Table 1

[0068]

[0069] RIS compositions comprising at least two of the first, second, or third RIS components can measurably reduce the evaporation rate of each corresponding group of fragrance raw materials and can reduce the vapor release rate of the fragrance composition, primarily by evaporating the RIS component faster than one or more PRMs in the corresponding PRM group, rather than relying solely on the vapor pressure of the PRMs in the fragrance composition, adding a carrier to the fragrance composition, or reducing the amount of the fragrance composition to reduce the evaporation rate of the PRMs and reduce the fragrance intensity. This allows for a more consistent evaporation profile of the fragrance composition within an interior space (e.g., as demonstrated by headspace testing that simulates the environment of an interior space in an interior environment, as described in the results of the Examples below), resulting in improved fragrance delivery.

[0070] Specifically, a RIS composition can be configured to have a low or no fragrance relative to a fragrance composition that does not contain the RIS composition. Specifically, a RIS composition can have a lower Molar Olfactory Index (MOI) relative to a fragrance composition. 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 a higher odor intensity relative to another composition with a lower MOI value. Thus, a volatile composition with a higher MOI value corresponds to a higher fragrance intensity relative to another volatile composition with a lower MOI value.

[0071] The Molar Olfactory Index (MOI) of a volatile composition can be determined to identify a desirable fragrance profile for an air freshener composition for use, for example, in continuous non-powered air fresheners, particularly evaporative air fresheners.

[0072] Specifically, the MOI of a volatile composition can be characterized by the molar olfactory index (MOI) defined by the following equation (I).

[0073]

[0074] in

[0075] i = RIS component in the RIS composition;

[0076] xi = mole fraction of RIS component i;

[0077]

[0078] ODT i = odor detection threshold of RIS component I (ppb);

[0079] j = component in the spice mixture;

[0080] xi = mole fraction of component j;

[0081]

[0082] ODT i = odor detection threshold of component j (ppb);

[0083] y = value at a specific temperature.

[0084] The volatile composition may be characterized by a molar olfactory index (MOI) reduction efficiency at 35° C. of at least 10%. The volatile composition may be characterized by an MOI reduction efficiency at 35° C. of 10% to 100%, preferably 25% to 65%, or various combinations of the above upper and lower percentages or any integers within the above ranges.

[0085] The MOI reduction efficiency of the volatile composition is determined according to Equation (II) below.

[0086]

[0087]

[0088] In particular, the MOI reduction efficiency determines the reduction in fragrance intensity of a volatile composition comprising the RIS composition and the hydrophobic material with fragrance relative to a volatile composition comprising the hydrophobic material with fragrance but without the RIS composition. The method for determining the MOI of the RIS composition is described below in terms of the respective components in the volatile composition.

[0089] The RIS composition can also be added in an effective amount to change the MOI of the volatile composition. In particular, the addition of 90% of the RIS composition reduces the MOI and achieves an MOI reduction efficiency of 85%. If a higher fragrance intensity is preferred, the RIS composition can also be adjusted accordingly. Thus, the use of the RIS composition provides flexibility in formulating various fragrance intensities to provide a broad product range of low fragrance air freshening compositions and / or air fresheners with higher fragrance intensity based on consumer preferences.

[0090] Without wishing to be bound by theory, the use of the RIS composition with the combination of at least two of the first RIS component / second RIS component / third RIS component slows down the evaporation of at least two of the front note / middle note / back note without affecting the fragrance profile relative to the reduction in fragrance intensity using the traditional diluents listed in Table 2 below, such as 3,5,5-trimethylhexyl acetate, 3,7-dimethyloctan-l,6-diene-3-ol, and 4-methyl-2-(2-methylpropyl)tetrahydropyran-4-ol.

[0091] Table 2

[0092]

[0093]

[0094] Referring to Table 2, the diluents, 3,5,5-trimethylhexyl acetate and 3,7-dimethyloctan-l,6-diene-3-ol, alone or in combination, do not have a MOI reduction efficiency of less than or equal to 1 x 10 4MOI at 35 °C. Using 3,5,5-trimethylhexyl acetate as a single diluent only slows the evaporation rate of the prologue, but not the middle and the epilogue, because before the prologue, it will evaporate from the volatile composition at the start of use, and the evaporation of the middle and the epilogue will not be controlled. Similarly, using 3,7-dimethyloct-1,6-dien-3-ol and 4-methyl-2-(2-methylpropyl)tetrahydropyran-4-ol as single diluents only solves the middle and the epilogue, respectively, considering the vapor pressure. The combination of 3,5,5-trimethylhexyl acetate, 3,7-dimethyloct-1,6-dien-3-ol, and 4-methyl-2-(2-methylpropyl)tetrahydropyran-4-ol has a MOI at 35 °C greater than 1 x 10 4 (4.00 x 10 4 ), which means that if this combination is added to a fragrance mixture having a prologue, a middle, and an epilogue, the scent intensity of this combination can affect the scent profile of the fragrance mixture.

[0095] The fragrance composition according to the present application comprises a fragrance mixture; and a scent intensity modulating composition (RIS composition) comprising a first scent intensity modulating component (RIS component) having an average vapor pressure (VP) at 25 °C greater than 0.3 Torr; and at least one of:

[0096] a second RIS component having an average VP at 25 °C from 0.07 Torr to 0.3 Torr; and

[0097] a third RIS component having an average VP at 25 °C from 0.0099 Torr to 0.07 Torr;

[0098] wherein each of the first, second, and third RIS components is characterized by an odor detection threshold (ODT) greater than 20 ppb.

[0099] The technical effect of the combination of the first RIS component and the second RIS component or the third RIS component is that the first RIS component can improve the delivery of a “just right” scent intensity by evaporating faster than the prologue, which evaporates quickly to form the initial impression of the fragrance composition to the person without being overly strong (“too strong a scent”), which is very important at the first point of contact, for example, when placing a device comprising the fragrance composition at the entrance of a residential interior space, as shown in the following Figure 11 .

[0100] Furthermore, the scent profile of the volatile composition, in particular the fragrance profile of the fragrance composition, can vary at different temperatures in different seasons.

[0101] Preferably, the volatile composition of the present invention comprises a scented hydrophobic fragrance material, wherein the scented hydrophobic material is a non-functional fragrance mixture comprising one or more top notes, one or more middle notes, and one or more base notes. At least 5% of any one of the one or more top notes, one or more middle notes, and one or more base notes in the non-functional fragrance mixture may comprise an odor detection threshold (ODT) of less than 20, and the volatile composition may be characterized by a scent characteristic consistency variation ("SCC variation") of less than 10% over a temperature range of 5° C. to 35° C., wherein the SCC variation is characterized by the following equation (III):

[0102]

[0103] in

[0104] Max% = the highest % in the temperature range of 5°C to 35°C;

[0105] Min% = minimum % in the temperature range of 5°C to 35°C;

[0106] wherein the one or more top notes comprises an average vapor pressure (VP) at 25° C. greater than 0.3 Torr;

[0107] wherein the one or more midtones include an average VP at 25°C of 0.03 Torr to 0.3 Torr; and

[0108] The one or more aftertones include an average VP at 25°C of less than 0.03 Torr.

[0109] At least 25% to 65% of one or more of the top notes, middle notes, and base notes may comprise an odor detection threshold (ODT) of less than 20.

[0110] This results in a more consistent distribution of the fragrance profile of the fragrance composition within the interior space (e.g., as demonstrated by headspace testing, which simulates the environment of the interior space within an interior environment, as shown in the results described below in the Examples), leading to improved fragrance delivery. Specifically, Examples III through VI all demonstrate that the compositions and freshening products according to the present invention provide less variation in fragrance profile (as demonstrated by having an SCC variation value of <10%), which results in an improved sensory impression for the user.

[0111] A. RIS composition

[0112] The RIS composition may be characterized by less than or equal to 1×10 4 The molar olfaction index (MOI) of α-hydroxybenzoic acid at 35° C. is defined as follows:

[0113]

[0114] where i is the corresponding RIS component;

[0115] xi = mole fraction of RIS component i;

[0116] and

[0117] ODT i =ODT of RIS component i (ppb).

[0118] Highly volatile compounds with higher vapor pressures evaporate faster at high temperatures relative to lower temperatures. Specifically, the MOI at 35°C is less than or equal to 1×10 4 The presence of a RIS composition without a RIS composition means that evaporation of the RIS composition has no or minimal impact on the overall fragrance delivered within the interior space. Consequently, at higher temperatures, improved odor suppression is achieved in fragrance compositions without compromising fragrance characteristics, while simultaneously reducing fragrance intensity. The fragrance compositions of the present invention according to the present invention have a reduced MOI (corresponding to reduced fragrance intensity) relative to fragrance compositions without a RIS composition, as demonstrated in the results described in the Examples below, specifically Example 1. Table 3 below lists exemplary RIS compositions according to the present invention.

[0119] Table 3 - Exemplary RIS compositions

[0120]

[0121] The total weight ratio of the first RIS component to the second RIS component can be formulated in an effective weight ratio so as to achieve a value less than or equal to 1×10 4 In addition, the total weight ratio of the first RIS component, the second RIS component, and the third RIS component can be formulated in an effective weight ratio so as to achieve an MOI of less than or equal to 1×10 4 The MOI is less than the MOI at 35 °C.

[0122] First RIS component

[0123] A RIS composition may include an effective amount, based on the weight of the RIS composition, of a first RIS component having an average vapor pressure (VP) at 25°C greater than 0.3 Torr. Specifically, the first RIS component may be configured in an amount effective to modulate the fragrance intensity of a volatile composition comprising top notes. 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 various combinations of the upper and lower percentages recited above, or any combination of integers within the aforementioned ranges, based on the weight of the RIS composition. The first RIS component may be an alcohol-containing compound comprising an alcohol. Specifically, the first RIS component may be a C4-C8 alcohol.

[0124] The first RIS component can be selected from the group consisting of: 3-methoxy-3-methylbutan-1-ol (MMB), 3-methylbutan-2-ol, butan-1-ol, 2,3-dimethylbutan-2-ol, 1-methoxypropan-2-ol, 2-methylbutan-2-ol, 3-methylbutan-1-ol, hex-1-en-3-ol, 2-ethylbutan-1-ol, 4-methylpentan-1-ol, 3-methylpentan-1-ol, ethyl 2-hydroxypropionate, 2-butoxyethanol, ethyl 3-hydroxybutyrate and mixtures thereof, more preferably selected from the group consisting of: MMB, 2-ethylbutan-1-ol, 4-methylpentan-1-ol, 3-methylpentan-1-ol and mixtures thereof, even more preferably MMB.

[0125] Physiochemical properties of suitable compounds for the first RIS component are listed in Table 4 below.

[0126] Table 4 – First RIS components

[0127]

[0128] Second RIS component

[0129] The RIS composition may include an effective amount of a second RIS component, based on the weight of the RIS composition, wherein the second RIS component has 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 configured in an amount effective to adjust the fragrance intensity of the volatile composition comprising the middle note. 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 combinations of any 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 comprise the following structure:

[0130]

[0131] in:

[0132] R1 and R2 are selected from the group consisting of substituted or unsubstituted saturated or unsaturated alkyl chains, substituted or unsubstituted cycloalkyl groups and substituted or unsubstituted aryl groups, preferably selected from the group consisting of substituted or unsubstituted saturated or unsaturated alkyl chains.

[0133] Specifically, the second RIS component may be a C6-C12 ester-containing compound.

[0134] The second RIS component can 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 1-O-ethyl malonate, dipropyl-2-adipate, (4-methoxyphenyl)methyl formate, ethyl 3-hydroxyhexanoate, and mixtures thereof, more preferably selected from the group consisting of DMA, ethyl 3-acetoxyhexanoate, methyl 5-acetoxyhexanoate, 3-O-butyl 1-O-ethyl malonate, and mixtures thereof, even more preferably DMA.

[0135] Physiochemical properties of suitable compounds for the second RIS component are listed in Table 5 below.

[0136] Table 5 – Secondary RIS components

[0137]

[0138]

[0139] The third RIS component

[0140] The RIS composition may include an effective amount, based on the weight of the RIS composition, of a 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 configured in an amount effective to adjust the fragrance intensity of the volatile composition comprising the afternote. 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 various combinations of the upper and lower percentages recited above, or any combination of integers within the above-listed ranges, based on the weight of the RIS composition. The third RIS component may be an alcohol-containing compound, preferably a C5-C10 alcohol. The third RIS component can be selected from the group consisting of: 1-(3-methoxypropoxy)propan-1-ol (DPM), 2-(2-methoxyethoxy)ethanol, methyl 2-hydroxybenzoate, 6,8-dimethylnonan-2-ol, 2-phenoxyethanol, 4-oxa-1,6-hexanediol, 1-(1-methyl-2-propoxyethoxy)propan-2-ol, 1-(2-butoxy-1-methoxy)propan-2-ol and mixtures thereof, more preferably selected from the group consisting of: DPM, 2-(2-methoxyethoxy)ethanol, 2-phenoxyethanol, 4-oxa-1,6-hexanediol and mixtures thereof, even more preferably DPM.

[0141] Physiochemical properties of suitable compounds for the third RIS component are listed in Table 6 below.

[0142] Table 6 – Third RIS Components

[0143]

[0144]

[0145] B. Scented hydrophobic material

[0146] The volatile composition may include a scented hydrophobic material formulated in an effective amount such that it provides a desired scent profile and is uniformly soluble in the volatile composition to deliver a consistent scent profile.

[0147] The scented hydrophobic material may comprise a CLogP greater than 0.01, preferably from 0.01 to 6.5, more preferably from 0.5 to 5.5.

[0148] The scented hydrophobic material may be a fragrance blend comprising one or more non-functional fragrance raw materials, wherein the non-functional fragrance raw materials ("non-functional PRMs") are used solely for their aroma, fragrance, or hedonic benefits and do not include any of the first, second, and third RIS components described above.

[0149] Equation (IV) described above for determining the MOI of a RIS composition can be modified for selecting PRMs for fragrance mixtures comprising top, middle, and base notes, for use, for example, in continuous, non-powered air fresheners, particularly evaporative air fresheners.

[0150] Specifically, the MOI of a scented hydrophobic material, such as a fragrance mixture having one or more PRMs, can be characterized by the Molar Olfactory Index (MOI) defined by the following equation (V).

[0151]

[0152] in

[0153] j = component in the spice mixture;

[0154] xi = mole fraction of component j;

[0155]

[0156] ODT i = odor detection threshold of component j (ppb);

[0157] y = value at a specific temperature.

[0158] The one or more non-functional PRMs may be selected from the group consisting of ethylene glycol cyclododecane dioate, 4-tert-butylcyclohexyl acetate, or vertenex TM , allyl amyl glycolate, allyl hexanoate, allyl cyclohexanepropionate, allyl heptanoate, amber xtreme, ambrox, isoamyl acetate, isoamyl propionate, anise oil, benzyl acetate, benzyl propionate, cis-3-hexen-1-ol, β-naphthol methyl ether or nerolidol, fenugreek lactone, caryophyllene extract, cinnamalva TMor cinnamonitrile, cinnamyl acetate, cinnamylnitrile, cis-3-hexenyl butyrate, cis-3-hexenyl acetate, cis-3-hexenyl α-methylbutyrate, cis-6-nonen-1-ol, citral diethylacetal or citral diethylacetal, citronellol, citronellyl acetate, citronellyl butyrate, clonal or dodecane nitrile, coranol or 2,2-dimethylcyclohexanepropanol, coumarin, cuminonitrile, cuminol, tricyclodecenyl isobutyrate or tricyclodecenyl butyrate, cyclohexylethyl acetate, dihydromyrcenol, methyl o-aminobenzoate, dimethylbenzylmethanol acetate, dimethyl-2,6-heptan-2-ol or freesia, sandal alcohol Pentenol or ebanol, ethyl 2-methylvalerate, ethyl acetoacetate, ethyl linalool, ethyl maltol, ethyl triphenyl glycidate, ethyl vanillin, ethyl 2-methylbutanoate, eugenol, eugenol, 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-oxaheterocyclohexadecene-2-one ((E)-12-musk decenone), helvetolide TM or musk propanoate, hexyl acetate, 2-methylhexyl butyrate, indocolore TM or 1-phenylvinyl acetate, isobornyl acetate, isoeugenyl acetate, isopropyl myristate, isoamyl butyrate, isoeugenol, koumalactone TM or coumarin, laevo trisandol or sandranol, lemonile TM or 3,7-dimethyl-2,6-nonadienenitrile (homogeranyl nitrile), levistamel TM or dimethylcoumarin, linalool, linalyl acetate, linalyl isobutyrate, lymolene or dihydromyrcenol, menthol, methyldioxolane, or fructone TM, methyl isobutenyl tetrahydropyran, methyl pamplemousse TM Or grapefruit methane, methylphenyl acetate or styrene acetate, methyl salicylate, montaverdi TM or cyprodinil ester, mugetanol TM or α-methyl-4-(1-methylethyl)cyclohexylmethanol (muguetethanol), neocaspirene, 2-nonenoic acid methyl ester (neofolione) or melon nonenoate nerolidol, sweet orange extract, orcinyl-3 or 3-methoxy-5-methylphenol, oxane TM Or cis-galbanum oxythiophene, p-cresol methyl ether or p-methyl anisole, patchouli, phenylethyl alcohol, phenylethyl dimethyl carbinol, polysantol TM or santol pentenol, amyl acetate, sauvignone TM or 5-mercapto-5-methyl-3-hexanone, sclareolate TM or neryl propionate, shisolia, strawberiff TM or 2-methyl-2-pentenoic acid, terpinolene or 4-isopropylidene-1-methylcyclohexene, tetrahydromuguol TM or citrus ocimene, 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 violacene, violiff TM Or violet methyl carbonate and mixtures thereof, preferably one or more non-functional fragrance raw materials are homogeraniol.

[0159] The one or more non-functional PRMs may be selected from the group consisting of volatile aldehydes, ketones, and mixtures thereof.

[0160] The one or more non-functional PRMs may include at least one volatile aldehyde selected from the group consisting of:

[0161] Adoxal TM(2,6,10-trimethyl-9-undecenal), Bourgeonal TM (4-tert-Butylphenylpropionaldehyde), Lilestralis 33 TM ((2-methyl-4-tert-butylphenyl) propanal), cinnamaldehyde, cinnamaldehyde (phenyl acrolein, 3-phenyl-2-propenal), citral, neral (dimethyl octadienal, 3,7-dimethyl-2,6-octadien-1-al), Cyclal C TM (2,4-dimethyl-3-cyclohexene-1-carbaldehyde), Florhydral TM (3-(3-isopropyl-phenyl)-butyraldehyde), Citronellal (3,7-dimethyl 6-octenal), Cymal (2-methyl-3-(p-isopropylphenyl) propionaldehyde), Cyclamen aldehyde, Citral (α-methyl-p-isopropylphenyl propionaldehyde), Methylnonane acetaldehyde, Aldehyde C12 MNA (2-methyl-1-undecanal), Hydroxycitronellal, Hydroxycitronellal (citronellal hydrate) (7-hydroxy-3,7-dimethyloctan-1-aldehyde), Helional TM (3-(1,3-benzodioxolan-5-yl)-2-methylpropanal); 2-methyl-3-(3,4-methylenedioxyphenyl)propanal, isoundecar (undecan-10-en-1-al), Ligustral TM (2,4-dimethylcyclohex-3-ene-1-carbaldehyde), Trivertal TM (2,4-dimethyl-3-cyclohexene-1-carbaldehyde), Jasmorange TM or satinaldehyde (2-methyl-3-tolylpropionaldehyde, 4-dimethylphenylpropionaldehyde), Lyral TM (4-(4-Hydroxy-4-methylpentyl)-3-cyclohexene-1-carbaldehyde), Melonal TM (2,6-dimethyl-5-heptenal), methoxymelonaldehyde (6-methoxy-2,6-dimethylheptenal), methoxycinnamaldehyde (trans-4-methoxycinnamaldehyde), Myrac aldehyde TM (Isohexenyltetrahydrobenzaldehyde), trifernal TM (3-methyl-4-phenylpropanal, 3-phenylbutyraldehyde), lilyral (3-(4-tert-butylphenyl)-2-methylpropanal), phenylpropanal (4-tert-butyl-α-methyl-hydrocinnamaldehyde), Dupical TM(4-[tricyclo[5,2,1,O2,6]decylidene-8-ene]butanal (muguetbutanal)), tricyclodecenebutanal (4-tricyclo5210-2,6decylidene-8-ene)butanal), Melafleur TM (1,2,3,4,5,6,7,8-octahydro-8,8-dimethyl-2-naphthaldehyde), methyloctanal, aldehyde C-11MOA (2-methyldecan-1-aldehyde), Onicidal TM (2,6,10-trimethyl-5,9-undecadien-1-al), citronellyloxyacetaldehyde, Muguet aldehyde 50 TM (3,7-Dimethyl-6-octenyl)oxyacetaldehyde, phenylacetaldehyde, Mefranal TM (3-Methyl-5-phenylpentanal), dimethyltetrahydrobenzaldehyde (2,4-dimethyl-3-cyclohexene-1-carbaldehyde), 2-phenylpropanal, 2-phenylpropanal (Hydrotropaldehyde) (2-phenylpropanal), Canthoxal TM (p-Anisylpropionaldehyde), Anisylpropionaldehyde 4-methoxy-α-methylphenylpropionaldehyde (2-anisylpropionaldehyde), Cyclemone A TM (1,2,3,4,5,6,7,8-octahydro-8,8-dimethyl-2-naphthaldehyde), Precyclemone B TM (1-cyclohexene-1-carboxaldehyde), mixtures thereof, preferably one or more non-functional fragrance raw materials selected from the group consisting of: Melonal TM (2,6-dimethyl-5-heptenal), methoxymelonal (6-methoxy-2,6-dimethylheptenal), Florhydral TM (3-(3-isopropyl-phenyl)-butyraldehyde) and mixtures thereof. One or more non-functional fragrance raw materials may include at least one ketone selected from the group consisting of isojasmone, methyl β-naphthyl ketone, muskindanone, tonalidone, TM or musk, α-damascenone, β-damascenone, δ-damascenone, isodamascenone, damascenone, methyl dihydrojasmonate, menthone, carvone, camphor, fenchone, α-ionone, β-ionone, dihydro-β-ionone, γ-methylionone, α-methylionone, β-n-methylionone isomers, fleuramone TM or 2-heptylcyclopent-1-one, dihydrojasmone, cis-jasmone, iso-e-super TMor broadyl, methyl cedrylone or methyl cypylone, acetophenone, methyl acetophenone, p-methoxyacetophenone, methyl-beta-naphtyl-ketone, benzylacetone, benzophenone, para-hydroxyphenylbutanone, apioin or livescone TM or 6-isopropyldecahydro-2-naphtenone, dimethyl octenone, freskomenthe TM or 2-but-2-ylcyclohexan-1-one, 4-(1-ethoxyvinyl)-3,3,5,5,-tetramethyl-cyclohexanone, methyl heptenone, 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 piperonyl acetone, dulcinyl TM or 4-(1,3-benzodioxol-5-yl)butan-2-one, gelsone TM or ethyl 2-acetoxyoctanoate, hexalon TM or alpha-amylcinnamaldehyde, methyl cyclocitrone TM or 1-(3,5,6-trimethyl-1-cyclohex-3-enyl)ethanone, methyl-lavender-ketone TM or 3-(hydroxymethyl)nonyl-2-one, orivone TM or 4-(2-methylbutan-2-yl)cyclohexan-1-one, para-tertiary butylcyclohexanone, verdone TM or 2-tertiary butylcyclohexan-1-one, delphone TM or 2-pentylcyclopentan-1-one, musk ketone, neobutenone TM or 1-(5,5-dimethyl-1-cyclohexenyl)pent-4-en-1-one, plicatone TM or octahydro-7-methyl-1,4-methanonaphthalen-6(2h)-one, veloutone TM or 2,2,5-trimethyl-5-pentylcyclopentan-1-one, 2,4,4,7-tetramethyl-oct-6-en-3-one, tetrameran TM or fior di levante, hedione TMOr methyl dihydrojasmone, γ-undecanoic acid lactone, γ-decanoic acid lactone, γ-octanolactone, ethylene glycol brazilate, cyclopentadecanolide, methyl nonyl ketone, cyclopentadecanone, 3,4,5,6-tetrahydro pseudoionone, 8-hexadecene lactone, dihydrojasmone, 5-cyclohexadecenone and mixtures thereof, preferably one or more non-functional fragrance raw materials are 2-butan-2-ylcyclohexane-1-one.

[0162] C. Active agent

[0163] Volatile compositions may include active agents. Active agents provide beneficial effects such as cleaning, surface care protection, fabric conditioning or softening, fabric freshness, wrinkle removal, air freshening, air deodorization, and malodor removal in the interior space. Active agents do not include water or deionized water. In freshening compositions, active agents can deliver real malodor removal beneficial effects. Real malodor removal beneficial effects are defined as sensory and analytically measurable (such as by GC) malodor reduction. Therefore, if an air freshening composition delivers a real malodor removal beneficial effect, the air freshening composition will not work simply by covering or masking the smell with spices. If an air freshening product is provided with a malodor control agent, the air freshening product can utilize one or more of several types of odor control mechanisms. A suitable malodor control agent is cyclodextrin.

[0164] Active agents may also include surfactants, emulsifiers, solubilizers, polymers, deodorants such as cyclodextrin, hydrogen peroxide, buffers, zinc ions, and the like.

[0165] D. Optional components

[0166] The volatile composition may optionally include an odor masking agent or an odor blocking agent. "Odor blocking" refers to the ability of a compound to dull the human sense of smell. "Odor masking" refers to the ability of a compound to mask or conceal a malodorous compound. Odor masking can include the addition of a compound with a non-offensive or pleasant odor in a dosed amount to limit the ability to perceive the malodorous compound. Odor masking can involve the selection of a compound that works with the desired malodor to alter the perception of the overall odor emitted by the combination of malodorous compositions.

[0167] II. equipment

[0168] The composition of the present invention can be delivered to an interior space using a device such as an air freshening device. In the following description, the device 1 described is a consumer product, such as an air freshener product, for delivering a freshening composition to an interior occupied space of a vehicle, an area located within an interior space of a residence near a residence entrance (e.g., Figure 11The product is shown to evaporate in a bathroom (e.g., a bathroom containing a toilet or a bathroom containing a shower) to deliver a variety of benefits, such as preventing bacterial growth, freshening, removing malodor, or perfuming the air in the bathroom. However, it is contemplated that the product can be configured for use in a variety of applications to deliver a freshening composition to provide benefits in an interior environment, such as a room in a home or commercial building, or furniture used to store household items, and that the air freshening product can include, but is not limited to, consumer products such as air freshening products, air fresheners, and the like.

[0169] It is contemplated that the device can be configured for use in a variety of applications to deliver a volatile composition to the atmosphere and / or a surface in an interior space, as long as the volatile composition evaporates from the device. For the purposes of the present disclosure, but not intending to limit the scope of the invention, the device is a non-energized device.

[0170] The device can 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 can include a wick, a film, a gel, a porous or semi-porous substrate including a felt pad. An exemplary delivery member can be a film, which is a semi-permeable material that allows some components of a substance to pass through but blocks other components. Among the components that pass through, the film retards the permeation of components, i.e., some components permeate faster than others. Such components can include molecules, ions, or particles.

[0171] For the purposes of detailing the invention, the invention is described below in connection with a toilet environment and a vehicle environment. However, it should be understood that the invention can be implemented in any interior environment containing a surface having a permeable material on which bacteria are deposited.

[0172] Figure 1 is a perspective view of a component of a device 2 for containing a volatile composition 13 when assembled and filled with the composition 13, which defines a device 1 for delivering a volatile composition according to the invention (an exemplary embodiment is shown in Figure 2 FIG. 1). The device 2 can be a volatile composition cartridge. Referring to Figure 1 and Figure 2 , the device 2 includes a container 10 containing a reservoir 11 for containing the volatile composition 13. The container 10 can be made of a material that is substantially impermeable to vapors, designed to resist the diffusion of the vapor phase of the composition 13. For example, the container 10 can be made of metal, glass, ceramic, porcelain, tile, and plastic, including but not limited to thermoplastic and other known materials suitable for thermoforming, injection molding, and blow molding. A delivery film 12, such as the film 12, can be disposed within the container 10 and arranged in fluid communication with the composition 13.

[0173] Figure 2 is shown in a horizontal orientation Figure 1Schematic diagram of an assembly apparatus 1, wherein a volatile composition 13 is disposed within a container 10. Figure 2 , the container 10 may include an end wall 101, a side wall 102, and an opening 103 at a perimeter 104 of the side wall 102 that defines the reservoir 11. For example, if the container 12 is made of thermoplastic, the film 12 may be attached to the perimeter 104 of the container 10 using conventional heat-sealing methods to contain the volatile composition 13 within the reservoir 11.

[0174] The device 1 may be configured for use in any desired orientation, including but not limited to, Figure 3 Vertical orientation shown. Figure 3 Shown Figure 1 A side view of the device 1, wherein the device 1 is Figure 1 The device 1 is substantially the same as that of FIG. 1 , except that the membrane 12 comprises a first surface 121 arranged in fluid communication with the volatile composition 13 and a second surface 122 facing the environment and away from the volatile composition 13 .

[0175] Figure 4 shows a front perspective view of another embodiment of the device 1 according to the invention, Figure 5 A rear perspective view of the device 1 is shown before use. Figure 6 Show Figure 4 and Figure 5 Internal components of device 1. Figure 4 、 5 and 6. The device 1 includes Figure 1 The apparatus 1 has substantially the same features as described above, with additional components as described below.

[0176] See also Figure 4 and 5 The device 1 includes a housing 40 having a front cover 401 and a rear frame 402, the front cover 401 and the 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 is provided that is movable relative to the housing 40 for activating the device 1. The actuator 404 can be, for example, a button 404 (hereinafter referred to as the "button") disposed within the opening 403 and movable relative to the rear frame 402 to enable a user to activate the 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.

[0177] refer to Figure 6, when the volatile composition 13 is a liquid volatile composition, the device 1 may include a rupture base 60 sealably attached to the reservoir 11 and covering the reservoir to prevent the volatile composition 13 from being released until the device 1 is activated. The rupture base 60 can be ruptured to release the volatile composition 13 by actuating a rupture mechanism 61 positioned adjacent to the rupture base 60. The rupture mechanism 61 includes a movable member 62 movably attached to an outer frame 63 by a resilient member 64. The resilient member 64 may be formed by one or more springs 65. One or more rupture elements 66 are arranged in the rupture mechanism 61 to pierce a hole in the rupture base 60. The rupture element 66 may be a needle. As described above for Figure 1 As described above, the membrane 12 can be sealingly attached to the flange 67 located at the periphery 104 of the container 10. The membrane 12 encloses the container 10, the volatile composition 13, the rupturable substrate 60, and the rupture mechanism 61. The membrane 12 can be configured to flex when pressure or actuation force is applied to the membrane 12 via the button 404. In a residential interior space such as a 2m 3 In a bathroom with an internal space volume of 15 cm, the membrane 12 can be constructed to include 2 Up to 35cm 2 evaporation surface area, and in order to achieve a compact design of the device 1, the membrane 12 may comprise 27 cm 2 The device 1 may be sized and dimensioned for placement on a surface within an interior space.

[0178] See also Figure 7 To activate the device 1, the user depresses the button 404 until it contacts the rupture mechanism 61 (by flexing the membrane 12 in a direction X toward the front end of the container), and the rupture element 66 on the rupture mechanism 61 pierces the rupture base 60. Once the rupture base 60 is pierced, the volatile composition 13 flows out of the container 10, wets the membrane 12, and is then delivered to the surrounding atmosphere by evaporation from the membrane 12. Specifically, the wetting of the membrane 12 occurs when the volatile composition 13 in the liquid phase contacts and spreads on at least a portion of the first surface 121 of the membrane 12. The membrane 12 is configured to prevent the volatile composition 13 in the liquid phase from flowing out of the membrane 12, but enables the volatile composition 13 in the vapor phase to evaporate from the second surface 122, allowing the volatile composition 13 to be delivered to the environment.

[0179] The volatile composition 13 can be delivered through a wick, wherein the wick can be configured to have a variety of shapes and sizes. For example, the wick can have a cylindrical or elongated cubic shape. The wick can be defined by a length and a 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 / cm 3 ("g / cc") to about 1.0 g / cc. The wick may comprise a porous or semi-porous substrate. The wick may be constructed from a variety of materials and construction methods, including but not limited to bundled fibers compressed and / or formed into various shapes by an overwrap (such as a nonwoven sheet overwrap) or made from sintered plastics such as PE, HDPE, or other polyolefins. For example, the wick may be made from a plastic material such as polyethylene or a polyethylene blend.

[0180] Figure 8 A variation of the device 1 for delivering a volatile composition according to the invention is shown. In addition to the housing design, Figure 8 The device 1 includes Figure 4 1. Specifically, Figure 8 The device 1 does not include buttons and has a housing design that is different from the housing 40 of the device 1 in that Figure 8 The housing 40 is configured to releasably engage the membrane 12 enclosing the container 10 (wherein the membrane 12 and the container 10 define a delivery engine) such that the device 1 is activated upon insertion into the delivery engine.

[0181] also, Figure 9A and 9B The device 1 for delivering a volatile composition according to the invention is shown in a first position ( Figure 9A ) and the second position after startup ( Figure 9B ) variant. Figure 9A and 9B Device 1 with Figure 4 The device 1 differs in that the actuator 404 is a removable clip 404 for attachment to the vent 900 in a vehicle environment, such as Figure 9CAs shown. The movable clamp 404 can be rotated relative to the housing 40 to move the membrane 12 and at least a portion of the rupture element 66 toward the rupture base 60 and pierce the rupture base, and release at least a portion of the volatile composition 13 from the container 10, so 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 in a rotational manner using known mechanical methods to move the membrane 12 and at least a portion of the rupture element 66 toward the rupture base 60 and pierce the rupture base. In a volume of 2m 3 In the interior space of the vehicle, the membrane 12 may include 7cm 2 Up to 15cm 2 In order to achieve a compact design of the device 1, the membrane 12 may comprise 11 cm 2 evaporation surface area.

[0182] Figure 9C is used in a vehicle environment Figure 9A and Figure 9B A front perspective view of a device 1 is shown, wherein the device 1 is located at a first contact point in a vehicle environment, i.e., near a vehicle door that is opened to provide access to the vehicle interior. The device 1 may be a car air freshener product, and a car air freshener product having a volatile composition 13 having a RIS composition according to the present invention has the advantage that the user experiences a "just right" fragrance intensity due to 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 contact point.

[0183] Figure 10 A variant of the device 1 for delivering a volatile composition according to the invention is shown. Figure 10 The device 1 includes Figure 6 The device 1 has essentially the same components, except 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-like shape and a housing-side opening 44 on one side of the housing 40, so that the volatile composition 13 can be delivered from the side of the housing 40 through the housing-side opening 44. The advantage of this configuration of the device 1 in an interior environment (such as an interior space) is that if there is limited countertop space, the device 1 can be attached to a wall surface by placing the product 1 close to the wall surface using a conventional vacuum suction cup. Alternatively, the device 1 can be supported in a horizontal orientation on a support in the interior environment by resting on the housing bottom surface 42 of the housing 40.

[0184] Figure 11FIG. 1 is a front perspective view of an apparatus for delivering a volatile composition according to the present invention for use in an interior space 110 of a residential environment at an entrance (hereinafter referred to as the "entrance interior space"). The entrance interior space 110 may include 2 m 3 The volume of the inlet interior space 110 is 100 mm / s, and thus the device 1 described above can be configured for use in any size and shape within the inlet interior space 110. The inlet interior space 110 is also the first point of contact where a user first interacts with the device 1 and experiences the volatile composition 13. The device 1 can be designed as a room air freshener product, and thus an advantage of a room air freshener product having a volatile composition 13 having a RIS composition according to the present invention is that the user experiences a "just right" fragrance intensity by evaporating faster than the top notes, which evaporate quickly to form a user's initial impression of the fragrance composition without being overly strong ("too strong a fragrance"), which is very important at the first point of contact.

[0185] The device 1 of the present invention can be configured for use in a variety of applications for delivering a volatile composition 13 to the atmosphere and / or surfaces in a continuous, non-electrical manner, as long as 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 the vapor-impermeable substrate 14 or by rupturing the vapor-impermeable substrate 14. Membranes and vapor-impermeable substrates designed to be releasably attached are known and will not be described further. For devices 1 designed to be activated by rupturing the vapor-impermeable substrate 14, examples of suitable physical parameters of the membrane 12 and vapor-impermeable substrate 14 are described below in the specification.

[0186] Membrane 12 can be a microporous membrane and include an average pore size of about 0.01 micron to about 1 micron, about 0.01 micron to about 0.06 micron, about 0.01 micron to about 0.05 micron, about 0.01 micron to about 0.04 micron, about 0.01 micron to about 0.03 micron, about 0.02 micron to about 0.04 micron or about 0.02 micron. In addition, membrane 12 can be filled with any suitable filler and plasticizer known in the art. The filler can include silica powder, clay, zeolite, carbonate, charcoal, and mixtures thereof. An example of a filled membrane is an ultra-high molecular weight polyethylene (UHMWPE) membrane filled with silica, such as those described in U.S. 7,498,369. Although any suitable filler material and weight percentage can be used, the typical filling percentage of silica can 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 weight of the membrane. Examples of suitable film thicknesses include, but are not limited to, about 0.01 mm to about 1 mm, about 0.1 mm to 0.4 mm, about 0.15 mm to about 0.35 mm, or about 0.25 mm, or various combinations of the above upper and lower values, or any integer combination within the above ranges. Further, the evaporation surface area of ​​the film 12 may be about 2 cm 2 to about 100cm 2 , about 2cm 2 to about 25cm 2 , about 10cm 2 to about 50cm 2 , about 10cm 2 to about 45cm 2 , about 10cm 2 to about 35cm 2 , about 15cm 2 to about 40cm 2 , about 15cm 2 to about 35cm 2 , about 20cm 2 to about 35cm 2 , about 30cm 2 to about 35cm 2 , about 35cm 2 , or different combinations of the above upper and lower limits, or combinations of any integers within the above ranges. The membrane 12 may include 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 , or different combinations of the above upper and lower limits, or an evaporation surface area of ​​a combination of any integers in the above range.

[0187] The vapor-impermeable substrate 14 can be made of any material that can be broken with a predetermined applied force, and there may or may not be elements to help such rupture, such as rupture elements. In embodiments where the vapor-impermeable substrate 14 is intended to contain a composition 13 when the device 1 is not in use, the vapor-impermeable substrate 14 can be made of any suitable barrier material that reduces or prevents the evaporation of the composition 13. Such materials can be vapor and liquid impermeable. Suitable barrier materials for vapor-impermeable substrates 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. An example of a foil that can be used as a barrier material is micron aluminum foil, which includes a nitrocellulose protective varnish, a polyurethane primer, and a 15g / m2 polyethylene coating (Lidfoil 118-0092) from Alcan Packaging. Suitable polymer films include, but are not limited to, polyethylene terephthalate (PET) films, acrylonitrile copolymer barrier films (such as, for example, manufactured by INOES under the trade name ), ethylene vinyl alcohol films, and combinations thereof. It is also contemplated that coated barrier films may be used as the vapor impermeable substrate 14. Such coated barrier films include, but are not limited to, metallized PET, metallized polypropylene, silica or alumina coated films.

[0188] The following examples are intended to more fully illustrate the present invention and are not to be construed as limitations of the present invention, as many variations thereof may be made without departing from the scope of the present invention. Unless otherwise indicated, all parts, percentages, and ratios used herein are expressed as weight percent.

[0189] Example

[0190] The test equipment / materials and test compositions are described first under Materials, followed by the test methods, and finally the results are discussed. Data demonstrating that the compositions of the present invention have improved modulation of fragrance intensity in interior environments are presented. The equipment and materials used in the test methods described below are listed in Table 4 below. The formulations of the compositions of the present invention are provided in Table 5 below. The compositions were prepared using conventional methods.

[0191] In the following examples, the apparatus in which each test composition and the composition of the present invention were evaluated was designed as a consumer product. The consumer product could be a car air freshener product (such as Figure 9A 、 Figure 9B , for evaporating a freshening composition in a vehicle interior to deliver a variety of benefits in the vehicle interior, such as fragrance intensity control. The consumer product may also be an indoor air freshener product (such as Figure 4As shown in FIG, 4 , the present invention relates to a novel device for evaporating a freshening composition in a room of a household facility such as a bathroom. Therefore, the equipment and materials have been designed to simulate the conditions in the interior space of a vehicle and the interior space of a room. However, it is envisioned that the device can be configured to be used to deliver a volatile composition in a variety of applications to provide a beneficial effect in an interior environment (such as, for example, furniture for storing personal items in homes and commercial buildings), and the product can include but is not limited to consumer products, such as air freshening products, air fresheners, deodorants, etc. Therefore, in different applications such as shoe cabinets (whereby the interior environment has different volumes), it will be understood that the equipment, materials, and methods can be modified accordingly to demonstrate that the freshening composition of the present invention has improved fragrance intensity regulation in interior environments of different volumes.

[0192] Test Method

[0193] A. Scent Characteristic Consistency Change Test Method ("SCC Change Test Method")

[0194] The scent character consistency variation ("SCC variation") of a volatile composition comprising a fragrance mixture having top notes, middle notes, and base notes, as defined herein, refers to the variation in the fragrance character of the fragrance mixture over a temperature range of 5°C to 35°C. The temperature range of 5°C to 35°C can correspond to the temperature range in interior spaces during different seasons (i.e., summer, fall, winter). The test method for determining the SCC variation of a volatile composition comprises the following steps:

[0195] 1) collecting volatile materials according to the headspace collection test method described below;

[0196] 2) analyzing the collected volatile materials according to headspace analysis as described below; and

[0197] 3) Calculate the SCC change of the volatile composition according to equation (IV) described above and reproduced below:

[0198]

[0199] in

[0200] Max% = the highest % in the temperature range of 5°C to 35°C;

[0201] Min% = minimum % in the temperature range of 5°C to 35°C;

[0202] wherein the one or more top notes comprises an average vapor pressure (VP) at 25° C. greater than 0.3 Torr;

[0203] wherein the one or more mid-tones include an average VP at 25°C of 0.03 Torr to 0.3 Torr; and

[0204] One or more of the backnotes include an average VP at 25°C of less than 0.03 Torr.

[0205] B. Headspace Collection Test Method

[0206] A headspace collection test method was performed to collect volatile raw materials that evaporate into an interior space or environment defined below and was performed according to the following steps:

[0207] 1) Activating the device to allow release of the fragrance

[0208] 2) Placing the device in the selected enclosed environment

[0209] a. Car simulation: Room volume of 2 m 3 3 different temperatures of 5°C, 21°C or 35°C, with a heater, fan or air control unit inside but not turned on

[0210] b. Bathroom simulation: Room volume of 2 m 3 3 different temperatures of 5°C, 21°C or 35°C

[0211] 3) Keeping the device upright for 1 hour

[0212] 4) Collecting the headspace in the room using Tenex tubes at different contact points

[0213] a. Car simulation: Collection time of 2 minutes, 2 different contact points - upon entering the room and 7 minutes after the heater, cooler or fan has been turned on

[0214] b. Bathroom simulation: Collection time of 1 minute, 1 contact point - upon entering the room

[0215] C. Headspace Analysis by Gas Chromatography-Mass Spectrometry (GC-MS)

[0216] The collected headspace was analyzed using a GC-MS device to identify (based on characteristic retention times and m / z values) and quantify (based on normalized peak integral area) the different fragrance raw materials (PRMs) that had evaporated. The PRMs were classified as front, middle, back or bulk material. Front, middle and back were defined as PRMs with a saturation vapor pressure at 25°C higher than 0.3 Torr, between 0.03 Torr and 0.3 Torr and lower than 0.03 Torr, respectively. PRMs present at greater than 7% weight percent and greater than 11 odor detection threshold were classified as bulk material, regardless of vapor pressure.

[0217] The percentage of front notes in all evaporated PRMs was calculated based on the following equation (VI):

[0218]

[0219] Similar calculations can be done to find the percentages of middle and base notes.

[0220] D. Flavor Weight Loss Measurement Method

[0221] The device of the present invention is characterized in that, once the device is activated and then for an extended period of time, the fragrance mixture is lost from the volatile composition. To determine the efficacy of the RIS composition in improving the delivery of the fragrance mixture, it is possible to observe the amount of fragrance mixture released from the device. Therefore, it is important to measure this value. For any volatile composition that wets a film, the ideal amount of evaporation of the composition occurs in a fully exposed film. To determine the efficacy of the RIS composition, the percent weight loss of the fragrance mixture in a first volatile composition (containing the fragrance mixture with the RIS composition) and a second volatile composition (containing the same fragrance mixture without the RIS composition) is observed. However, the volatile composition can be composed of any number of materials.

[0222] To calculate the values ​​detailed in this article, the following items are required:

[0223] 1. Balance (weighing: Ohaus AA210 S / N 11131122540) or equivalent.

[0224] 2. The housing of the present invention comprising a first wall and a second wall

[0225] 3. A device containing 5.5 ml of a fragrance composition (e.g. Figure 4 shown and having an evaporation surface area of ​​27 cm 2 A device containing 2 ml of a fragrance composition (e.g. Figure 9A shown and has an evaporation surface area of ​​11 cm 2 (If adding fragrance composition by weight, multiply the measured density by 5.5 ml or 2 ml to obtain the exact fill weight.)

[0226] 4. 3M Scotch Weld Applicator TC and adhesive, #3797-TC or equivalent.

[0227] 5. Steaming rack or equivalent open tray (oven) rack with top cover and shelf spacing of 15 cm or more.

[0228] 6. A room housing an evaporative rack with the following measurements, airflow, temperature / relative humidity, or equivalent:

[0229] a) Laboratory size: 32 feet 4 inches long x 72 inches wide x 108 inches high or 1,730 ft 3

[0230] b) Airflow (intake and exhaust)

[0231] Normal mode: Average air supply: 103.75ft 3 / min±6%

[0232] Average exhaust: 149.25ft 3 / min±6%

[0233] Difference in negative air pressure: -45.5

[0234] Negative pressure means that the air supplied to the laboratory and from adjacent corridors or rooms is exhausted through the ventilation system.

[0235] c) Temperature and relative humidity (%)

[0236] Average temperature: 23°±0.1℃

[0237] Average relative humidity %: 45% ± 0.5%

[0238] Determine the percent cumulative weight loss of a spice blend

[0239] 1. Load the volatile composition into the device in a manner that provides a sealed cartridge that has not yet been wetted. For example, the volatile composition cartridge can be pierced by cutting a hole in the volatile composition cartridge that allows an 18-gauge needle to be inserted.

[0240] 2. Fill with 5.5ml of flavor composition Figure 4 This is equivalent to 5024 mg of standard flavor composition. Fill with 2 ml of flavor composition Figure 9A The device is described herein, wherein 2 ml is equivalent to 1.9 grams. The volume may need to be adjusted based on the density of the composition of interest.

[0241] 3. Seal the insertion hole with hot melt adhesive.

[0242] 4. Measure and record the weight of the equipment to three significant figures.

[0243] 5. Insert the cartridge into the housing and ensure the cartridge is properly seated within the housing to ensure proper airflow.

[0244] 6. Activate the device to wet its membrane. Figure 4 device, by pressing Figure 4 This type of activation is achieved by clicking the activation button on the Figure 9A device, by moving the clip from its first position prior to activation ( Figure 9A ) moves to the second position after activation ( Figure 9B ), for example by activating the device by rotating 90 degrees relative to the first position. However, there may be equivalent means of activating and wetting the membrane.

[0245] 7. Pick a time and measure (in mg) and record the box weight daily for at least thirty days.

[0246] 8. Use the recorded times and their corresponding weights to determine the percent cumulative weight loss of the volatile composition as previously detailed.

[0247] Example 1 - Comparative Fragrance Compositions and Fragrance Compositions of the Present Invention

[0248] The fragrance mixture of PRMs shown in Table 8 ("Fragrance Mixture A") was combined with the exemplary RIS composition shown in Table 9 to form Inventive Composition B, which was used to evaluate the MOI of volatile compositions according to Equation (I) described above. However, it should be understood that any PRM capable of transitioning from a solid and / or liquid phase to a vapor phase may be employed.

[0249] Table 8 – Spice Mix A

[0250]

[0251] Table 9 - Exemplary RIS compositions

[0252]

[0253]

[0254] Table 10 below lists the MOI of each of Inventive Fragrance Composition B and Comparative Fragrance Composition C at 35°C.

[0255] Table 10

[0256]

[0257] The MOI at 35°C was 1.70×10 4 The fragrance composition B of the present invention shows that the addition of 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 the comparative fragrance composition A (1.09×10 5 ) is lower), thereby improving the fragrance delivery in the interior space, especially at the first contact point.

[0258] Example II

[0259] Example II demonstrates that the RIS composition and the PRM function to provide a reduced vapor release rate of the PRM according to the present invention. It should be understood that the first RIS component, the second RIS component, and the third RIS component can be formulated at any level in the RIS composition. 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 fragrance intensity of the volatile composition comprising the fragrance mixture.

[0260] Specifically, the results in Example II show that even if different fragrance blends are used to formulate volatile compositions containing RIS compositions having the same levels of the first RIS component, the second RIS component, and the third RIS component, and the RIS compositions are at the same level by weight of the volatile composition, based on Figure 12 The slope L and Figure 13 Similar gradients in the slope P in the graph also achieve the same technical result of an improved fragrance profile. Furthermore, as can be seen from the different gradients of the slopes in the graphs, when evaporation is driven based on vapor pressure, the compositions of the present invention comprising the RIS component preferentially evaporate relative to their respective targets—top, middle, and base notes—and thus reduce the evaporation rate and, therefore, the fragrance intensity at all temperatures and airflows relative to the comparative composition having only fragrance.

[0261] Table 11 below lists the ingredients 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 and are provided in Table 13. Figure 12 Table 13 below lists the ingredients in the comparative samples and the samples of the present invention evaluated according to Test Method D for four consecutive weeks, and the fragrance evaporation results are listed in Table 14 and are shown in Table 15. Figure 13 As shown in the figure.

[0262] Figure 12 and Figure 13 The results of the fragrance weight loss measurements for the comparative and inventive samples are plotted against a time period of four consecutive weeks. A line is drawn for each of the comparative and inventive samples to combine the peak fragrance weight loss in the first week with the fragrance weight loss in the fourth week to define a slope having a gradient and to define a slope having a gradient. Figure 12 and Figure 13 and the labels 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.

[0263] Table 11 - Figure 12 Comparative samples and inventive samples of Example 1

[0264]

[0265] Table 12 – Results

[0266]

[0267] refer to Figure 12 Comparative Sample 1 has a similarly steep slope as Comparative Sample 2's Slope K, even though the level of Fragrance Blend X in Comparative Sample 2 was reduced by 50%. Specifically, the slope gradient for Slope J was 145, and the slope gradient for Slope L was 135. The steep gradients indicate that the fragrance intensity of Comparative Sample 2 did not decrease significantly. In contrast, the slope L of Inventive Sample 3 has a more gradual gradient (slope gradient of 89) relative to the gradients of Slope J and Slope K, indicating that when the RIS composition is added to the volatile composition in an amount of 30% by weight of the volatile composition, the fragrance intensity decreases over the entire duration. Furthermore, when the RIS composition is added to Inventive Sample 4 in an amount of 60% by weight of the volatile composition, the gradient of Slope M decreases relative to Inventive Sample 3 (slope gradient of 42).

[0268] Table 13 – Figure 13 Comparative samples and samples of the present invention

[0269]

[0270] Table 14 - Results

[0271]

[0272] refer to Figure 13 , Slope N and Slope O of Comparative Samples 5 and 6 exhibited similar gradient patterns to Comparative Samples 1 and 2, namely, steep gradients. Specifically, as the level of fragrance mixture Y in Comparative Sample 5 decreased, the change in slope gradient was relatively small. In contrast, Slope P and Slope Q of Inventive Samples 7 and 8, respectively, exhibited gentler gradients, indicating a reduction in fragrance weight loss and a corresponding decrease in aroma intensity. Furthermore, when the RIS composition was added to Inventive Sample 8 at 60% by weight of the volatile composition, the gradient of Slope Q (slope gradient of 27) decreased relative to Inventive Sample 7 (slope gradient of 62).

[0273] In general, the above results for the compositions of the present invention according to the present invention show that providing an air freshening product of the present invention in an interior environment achieves the technical effect of providing improved fragrance delivery by reducing fragrance intensity at high temperatures. Thus, by preventing high fragrance intensity at the first contact point, the fragrance profile can be more consistent and the lifespan of the air freshening composition can be increased, thereby achieving the dual beneficial effects of freshness in the interior environment and product lifespan. The PRMs used to prepare fragrance mixtures X and Y were not 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 in 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.

[0274] Example III

[0275] Example III demonstrates how a RIS composition and a PRM function to provide a volatile composition according to the present invention, which has an improved fragrance profile consistency change ("SCC change") of the PRM under ambient air flow conditions within a vehicle (automobile) interior, i.e., a parked vehicle. Table 15 below lists the non-functional fragrance raw materials of fragrance mixture B used in comparative and inventive samples evaluated according to the SCC test method over a test duration of summer, autumn, and winter seasons. Table 16 below lists the ingredients of each of the comparative and inventive samples, and their SCC change results are shown in Table 17 below.

[0276] In summary, the results of Example III demonstrate that a car air freshener composition comprising a RIS composition and a non-functional fragrance raw material has improved fragrance profile consistency under parking conditions in all seasons relative to a comparative volatile composition not containing the RIS composition, by having a lower SCC variation as described below.

[0277] Table 15 – Spice Mix B

[0278]

[0279]

[0280] Table 16 - Comparative and Inventive Samples

[0281] By weight of the composition (%) Comparative Sample 9 Sample 10 of the present invention Spice Mix B 100％ 40％ Table 9 RIS composition - 60％ equipment Figure 9A Figure 9A Film evaporation surface area <![CDATA[11cm 2 ]]> <![CDATA[11cm 2 ]]>

[0282] Table 17 – SCC change results

[0283]

[0284] Referring to Table 17, the inventive sample 10 has an SCC variation of 9.7%, which is less than 10% and lower than the SCC variation of the comparative sample 9 (15.6%). Figure 14B When compared, the improvement of SCC change of sample 10 of the present invention is also Figure 14A Displayed intuitively.

[0285] Figure 14A This is a corresponding graph to the results of Sample 10 of the present invention in Table 17. Figure 14B is a corresponding graph of the results of comparative sample 9 in Table 17. Figure 14A As shown, the inventive sample 10 has a top note profile 10T, a middle note profile 10M, and a base note profile 10B, which are more closely spaced relative to the top note profile 9T, middle note profile 9M, and base note profile 9B of the comparative sample 9.

[0286] Inventive Sample 10, having an 8.6% SCC variation, which is less than the 15.6% SCC variation of Comparative Sample 9, demonstrates that the volatile composition with the RIS composition has improved fragrance profile consistency over the volatile composition without the RIS composition under parking conditions in all seasons.

[0287] Example IV

[0288] Example IV demonstrates how a RIS composition and a PRM function to provide a volatile composition according to the present invention having improved fragrance profile consistency variation ("SCC variation") of the PRM under moving airflow conditions within a vehicle (automotive) interior, i.e., within an automobile under driving conditions. The RIS composition of Table 9 and the fragrance mixture B of Table 15 were used to prepare comparative and inventive samples that were evaluated according to the SCC test method over the test duration of the consecutive summer, autumn, and winter seasons of the year. Table 18 below lists the ingredients of each of the comparative and inventive samples, and their SCC variation results are shown in Table 19 below.

[0289] In summary, the results of Example IV demonstrate that a car air freshener composition comprising a RIS composition and a non-functional fragrance raw material has improved fragrance profile consistency across driving conditions in all seasons relative to a comparative volatile composition not containing the RIS composition, by having a lower SCC variation as described below.

[0290] Table 18 - Comparative and Inventive Samples

[0291] By weight of the composition (%) Sample 11 of the present invention Comparative Sample 12 Spice Mix B 40％ 100％ Table 9 RIS composition 60％ - equipment Figure 9A Figure 9A Film evaporation surface area <![CDATA[11cm 2 ]]> 11 cm 2 ]]

[0292] Table 19 – SCC change results

[0293]

[0294] Referring to Table 18, the inventive sample 11 has an SCC variation of 8.6%, which is less than 10% and lower than the SCC variation of the comparative sample 12 (10.1%). Figure 15B When compared, the improvement of SCC change of sample 11 of the present invention is also Figure 15A Displayed intuitively.

[0295] Figure 15A This is a corresponding graph to the results of Sample 11 of the present invention in Table 19. Figure 15B is a corresponding graph of the results of comparative sample 12 in Table 19. Figure 15A As shown, the inventive sample 11 has a top note profile 11T, a middle note profile 11M, and a base note profile 11B, which are more closely spaced relative to the top note profile 12T, the middle note profile 12M, and the base note profile 12B of the comparative sample 12.

[0296] Inventive Sample 11, having an 8.6% SCC variation, which is less than the 10.1% SCC variation of Comparative Sample 12, demonstrates that the volatile composition with the RIS composition has improved fragrance profile consistency over the volatile composition without the RIS composition under driving conditions in all seasons.

[0297] Example V

[0298] Example V demonstrates how a RIS composition and a PRM function to provide a volatile composition according to the present invention, which has an improved fragrance profile consistency change ("SCC change") of the PRM under moving airflow conditions in a vehicle (automobile) interior, i.e., in an automobile under driving conditions substantially identical to those in Example IV. Table 20 below lists the non-functional fragrance raw materials of Fragrance Mixture C, which differs from Fragrance Mixture B. Fragrance Mixture C was used in comparative samples and inventive samples evaluated according to the SCC test method over a test duration of summer, autumn, and winter seasons of the year to demonstrate that the RIS composition can be added to any PRM mixture of non-functional fragrance raw materials to provide an improved fragrance profile consistency change. Table 21 below lists the ingredients of each of the comparative and inventive samples, and their SCC change results are shown in Table 22 below.

[0299] In summary, the results of Example V demonstrate that automotive air freshening compositions comprising different mixtures of RIS compositions and non-functional fragrance raw materials also exhibit improved fragrance profile consistency across driving conditions in all seasons, relative to comparative volatile compositions not containing the RIS composition, by having lower SCC variation as described below.

[0300] Table 20 - Spice Mixture C

[0301]

[0302] Table 21 - Comparative and Inventive Samples

[0303]

[0304]

[0305] Table 22 – SCC change results

[0306]

[0307] Referring to Table 22, the inventive sample 13 has an SCC variation of 6.5%, which is less than 10% and lower than the SCC variation of the comparative sample 14 (11.1%). Figure 16B When compared, the improvement of SCC change of sample 13 of the present invention is also Figure 16A Displayed intuitively.

[0308] Figure 16A This is a corresponding graph to the results of Sample 13 of the present invention in Table 22. Figure 16B is a corresponding graph of the results of comparative sample 14 in Table 22. Figure 16A As shown, the inventive sample 13 has a top note profile 13T, a middle note profile 13M, and a base note profile 13B that are more closely spaced relative to the top note profile 14T, the middle note profile 14M, and the base note profile 14B of the comparative sample 14.

[0309] Inventive Sample 13, which has an SCC variation of 6.5%, which is less than the 11.1% SCC variation of Comparative Sample 14, demonstrates that volatile compositions having any fragrance blend of a RIS composition and a non-functional fragrance raw material have improved fragrance profile consistency under driving conditions in all seasons relative to volatile compositions without a RIS composition.

[0310] Example VI

[0311] Example VI demonstrates how a RIS composition and a PRM function to provide a volatile composition according to the present invention, which has an improved fragrance profile consistency change ("SCC change") of the PRM under ambient air flow conditions in a residential (room, bathroom) interior space. Table 23 below lists the non-functional fragrance raw materials of fragrance mixture B used in comparative samples and inventive samples evaluated according to the SCC test method over the test duration of the consecutive summer, autumn, and winter seasons of the year. Table 24 below lists the ingredients of each of the comparative and inventive samples, and their SCC change results are shown in Table 25 below.

[0312] In summary, the results of Example VI indicate that a room air freshener composition comprising a RIS composition and a non-functional fragrance raw material has a 2 m 3 Volume of residential interior spaces (e.g. Figure 11 Improved fragrance profile consistency under ambient conditions (such as bathrooms, entrance interior spaces, etc.)

[0313] Table 23 - Spice Mixture D

[0314]

[0315] Table 24 - Comparative and Inventive Samples

[0316]

[0317]

[0318] Table 25 – SCC change results

[0319]

[0320] Referring to Table 22, the inventive sample 15 has an SCC variation of 6.5%, which is less than 10% and lower than the SCC variation of the comparative sample 16 (10.9%). Figure 17B When compared, the improvement of SCC change of sample 15 of the present invention is also Figure 17A Displayed intuitively.

[0321] Figure 17A This is a corresponding graph of the results of sample 15 of the present invention in Table 25. Figure 17B is a corresponding graph of the results of comparative sample 16 in Table 25. Figure 17A As shown, the inventive sample 15 has a top note profile 15T, a middle note profile 13M, and a base note profile 15B that are more closely spaced relative to the top note profile 16T, the middle note profile 16M, and the base note profile 16B of the comparative sample 16.

[0322] Inventive Sample 15, which has an SCC variation of 6.5%, which is less than the SCC variation of 10.9% for Comparative Sample 16, demonstrates that volatile compositions having any fragrance mixture of a RIS composition and a non-functional fragrance raw material have improved fragrance profile consistency in interior spaces in any season relative to volatile compositions without a RIS composition.

[0323] The above overall results show that air freshening products with RIS compositions improve fragrance profile consistency (which can be affected by temperature variations), reduce fragrance intensity, and have lower SCC variation in interior spaces across different seasons and temperatures ranging from 5°C to 35°C. The results also show that the technical effects are achieved for any device design, any membrane evaporation surface area size, any fragrance mixture, and under different airflow conditions (in vehicles).

[0324] It should be understood that the dimensions and values ​​disclosed herein are not intended to be strictly limited to the exact numerical values ​​recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

[0325] Unless expressly excluded or otherwise limited, each document cited herein, including any cross-referenced or related patent or patent application and any patent application or patent to which this application claims priority or the benefit of, is hereby incorporated by reference in its entirety. The citation of any document is not an admission that it is prior art to any of the present inventions disclosed or claimed herein, or an admission that it, by itself or in combination with any one or more references, proposes, suggests, or discloses any such invention. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.

[0326] Although specific embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications may be made without departing from the spirit and scope of the present invention. It is therefore intended that all such changes and modifications within the scope of the present invention be encompassed in the appended claims.

Claims

1. A volatile composition comprising: (i) greater than 30% by weight of the volatile composition of a scented hydrophobic material, wherein the scented hydrophobic material comprises one or more volatile compounds; and (ii) greater than 20%, by weight of the volatile composition, of a modified fragrance intensity (RIS) composition, wherein the RIS composition comprises: at least 5%, by weight of the RIS composition, of a first flavor intensity modulating component (RIS component) having a high average vapor pressure (VP) at 25° C. greater than 0.3 Torr; at least 20%, by weight of the RIS composition, of a second RIS component having a moderate average VP at 25° C. of 0.07 torr to 0.3 torr; and at least 10%, by weight of the RIS composition, of a third RIS component having a low average VP at 25° C. of 0.0099 torr to 0.07 torr; wherein each of the one or more volatile compounds has an average VP lower than at least one of the high average VP, medium average VP, and low average VP of the first, second, and third RIS components at the same temperature.

2. The volatile composition of claim 1, wherein the volatile composition is characterized by an MOI reduction efficiency of at least 10% at 35°C.

3. The volatile composition of claim 2, wherein the MOI reduction efficiency at 35°C is from 10% to 100%.

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

5. The volatile composition according to claim 1, 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.

6. The volatile composition of claim 1, wherein the first RIS component is an alcohol-containing compound.

7. The volatile composition of claim 6, wherein the first RIS component is selected from the group consisting of 3-methoxy-3-methylbutan-1-ol (MMB), 3-methylbutan-2-ol, butan-1-ol, 2,3-dimethylbutan-2-ol, 1-methoxypropan-2-ol, 2-methylbutan-2-ol, 3-methylbutan-1-ol, hex-1-en-3-ol, 2-ethylbutan-1-ol, 4-methylpentan-1-ol, 3-methylpentan-1-ol, ethyl 2-hydroxypropionate, 2-butoxyethanol, ethyl 3-hydroxybutyrate, and mixtures thereof.

8. The volatile composition of claim 1, wherein the second RIS component is an ester-containing compound.

9. The volatile composition of claim 8, 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 1-O-ethyl malonate, dipropyl-2-adipate, (4-methoxyphenyl)methyl formate, ethyl 3-hydroxyhexanoate, and mixtures thereof.

10. The volatile composition of claim 1, wherein the third RIS component is an alcohol-containing compound.

11. The volatile composition of claim 10, wherein the third RIS component is selected from the group consisting of 1-(3-methoxypropoxy)propan-1-ol (DPM), 2-(2-methoxyethoxy)ethanol, methyl 2-hydroxybenzoate, 6,8-dimethylnonan-2-ol, 2-phenoxyethanol, 4-oxa-1,6-hexanediol, 1-(1-methyl-2-propoxyethoxy)propan-2-ol, 1-(2-butoxy-1-methoxy)propan-2-ol, and mixtures thereof.

12. The volatile composition of claim 1, wherein the first RIS component is 3-methoxy-3-methylbutan-1-ol (MMB), the second RIS component is dimethyl adipate (DMA); and the third RIS component is 1-(3-methoxypropoxy)propan-1-ol (DPM).

13. The volatile composition of claim 1, wherein the scented hydrophobic material comprises a CLogP greater than 0.

01.

14. The volatile composition of claim 1 , wherein the scented hydrophobic material is a non-functional fragrance mixture comprising one or more top notes, one or more middle notes, and one or more base notes; wherein at least 5% of any of the one or more top notes, the one or more middle notes, and the one or more base notes in the non-functional fragrance mixture comprises an odor detection threshold (ODT) of less than 20; wherein the volatile composition is characterized by a scent character consistency variation ("SCC variation") of less than 10% over a temperature range of 5°C to 35°C, wherein the SCC variation is characterized by the following equation: in Max% = Maximum % within the temperature range of 5°C to 35°C; Min% = lowest % in the temperature range of 5°C to 35°C wherein the one or more top notes comprises an average vapor pressure (VP) at 25°C of greater than 0.3 Torr; wherein the one or more midtones comprise an average VP at 25°C of 0.03 Torr to 0.3 Torr; and wherein the one or more aftertones comprise an average VP at 25°C of less than 0.03 Torr.

15. The volatile composition of claim 14, wherein at least 25% to 65% of the one or more top notes, middle notes, and base notes comprise an odor detection threshold (ODT) of less than 20.

16. The volatile composition of claim 1, wherein the volatile composition is a fragrance composition.

17. The volatile composition of claim 16, wherein the volatile composition is a freshening composition.

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

19. A device for delivering a volatile composition in an interior space, the device comprising: A volatile composition according to any one of the preceding claims; a reservoir for containing the volatile composition, the reservoir comprising an opening; wherein the volatile composition comprises a liquid phase; and A delivery member configured to contain the liquid phase of the volatile composition and allow the liquid phase to evaporate from the delivery member; wherein the interior space is one of: a vehicle interior space, an interior space of a residential environment, an interior space of a commercial environment.

20. The apparatus of claim 19, wherein the interior space is a bathroom.

21. The apparatus of claim 19, wherein the interior space is located at an entrance to a residential environment.

22. The apparatus of claim 19, wherein the delivery member is selected from the group consisting of a wick, a membrane, a gel, a porous or semi-porous substrate.

23. The apparatus of claim 22, wherein the delivery member is a microporous membrane.

24. An air freshener product, comprising a volatile composition having: (i) a non-functional fragrance mixture comprising one or more top notes, one or more middle notes, and one or more base notes; wherein at least 5% of any of the one or more top notes, the one or more middle notes, and the one or more base notes in the non-functional fragrance mixture comprises an odor detection threshold (ODT) of less than 20 ppb; and (ii) a modified fragrance intensity (RIS) composition, based on the weight of the volatile composition, wherein the RIS composition comprises: at least 5%, by weight of the RIS composition, of a first flavor intensity modulating component (RIS component) having a high average vapor pressure (VP) at 25° C. greater than 0.3 Torr; at least 20%, by weight of the RIS composition, of a second RIS component having a moderate average VP at 25° C. of 0.07 torr to 0.3 torr; and at least 10%, by weight of the RIS composition, of a third RIS component having a low average VP at 25° C. of 0.0099 torr to 0.07 torr; wherein the average VP of each of the one or more top notes, the one or more middle notes, and the one or more base notes is lower than the corresponding one of the high average VP, the medium average VP, and the low average VP of the first, second, and third RIS components at the same temperature, wherein the volatile composition is characterized by a scent character consistency variation ("SCC variation") of less than 10% over a temperature range of 5°C to 35°C, wherein the SCC variation is characterized by the following equation: in Max% = Maximum % within the temperature range of 5°C to 35°C; Min% = lowest % in the temperature range of 5°C to 35°C wherein the one or more top notes comprises an average vapor pressure (VP) at 25°C of greater than 0.3 Torr; wherein the one or more midtones comprise an average VP at 25°C of 0.03 Torr to 0.3 Torr; and wherein the one or more aftertones comprise an average VP at 25°C of less than 0.03 Torr.

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