Apparatus and compositions for improving scent delivery

Abstract

To provide a scent intensity regulating composition that can be used in a volatile composition to improve scent delivery of the volatile composition at the First Touch Point and / or provides a long-lasting scent irrespective of the vapor pressure of the volatile composition without significantly altering the formulation or character of the volatile composition.SOLUTION: There is provided a volatile composition having: (i) greater than 30 wt.% of a scented hydrophobic material of the volatile composition, wherein the scented hydrophobic material comprises one or more volatile compounds; and (ii) greater than 20 wt.% of a regulating scent intensity (RIS) composition of the volatile composition. The RIS composition has at least two of: a first regulating scent intensity 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.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to devices and volatile compositions that include scent intensity modulating compositions for improving scent delivery within an interior space. [Background technology]

[0002] Devices for dispensing volatile substances are well known and are commonly used to provide a variety of benefits, such as air freshening, odor removal, or fragrance in domestic and commercial spaces such as rooms, or enclosed spaces such as toilets and vehicle interior spaces.

[0003] Air freshening products are designed to dispense volatile substances, such as volatile compositions that include one or more volatile materials, such as fragrance oils.Volatile compositions can be dispensed by being contained in membrane-based, wick-based, and gel-based systems, and then evaporating the volatile compositions from them.However, the problem with such air freshening products is that the evaporation rate of the volatile compositions over the product life is often inconsistent, i.e., the volatile compositions have a high evaporation rate at the beginning of product use, and a low evaporation rate toward the end of product life.

[0004] Specifically, volatile compositions typically comprise a mixture of high volatility compounds and other volatile compounds that are less volatile ("lower volatility compounds"). High volatility compounds generally have a higher vapor pressure than lower volatility compounds. Specifically, at a given temperature, high volatility compounds with higher vapor pressure evaporate more easily than lower volatility compounds with lower vapor pressure. During use, high volatility compounds tend to evaporate more quickly at the beginning of the use of such products, while lower volatility compounds evaporate later, resulting in an overall inconsistent scent intensity and fragrance characteristics of the volatile composition over the product's lifespan. A high initial evaporation rate leads to an overwhelming initial scent intensity, which may result in the perception that the air freshening product has different scent intensities over the product's lifespan, or that the product has lost its effectiveness after the initial scent intensity is no longer present.

[0005] Furthermore, the problem of inconsistency in evaporation rate becomes more acute when the user's first interaction with the air within the interior space occurs (hereinafter the "first touch point"). The interior space may be a vehicle, a residential building, a commercial building, or any portion or room of a residential / commercial building.

[0006] Typically, the air at the first touch point is a mixture of existing or dominant odors in the interior space, which may create an unpleasant first touch point for the user when he / she enters, i.e., at the entrance of the interior space. Furthermore, especially when a visitor enters the interior space, the unpleasant first touch point creates an unfavorable impression for subsequent meetings and activities in the interior space.

[0007] In some cases, carriers such as solvents and diluents are used to reduce the evaporation rate of volatile compositions, such as volatile freshening compositions.Highly volatile freshening compositions may use high concentrations of carriers to slow down the evaporation rate of freshening compositions.Adding carriers and other materials to reduce the evaporation rate of freshening compositions may significantly reduce the concentration of perfume raw materials in the freshening composition, and may also change the character and fragrance intensity of the freshening composition. Summary of the Invention [Problem to be solved by the invention]

[0008] Therefore, it would be beneficial to provide a scent intensity modifying composition that can be used in a volatile composition to improve the scent delivery of the volatile composition at the point of initial touch and / or provide a long-lasting scent regardless of the vapor pressure of the volatile composition without significantly altering the formulation or characteristics of the volatile composition. [Means for solving the problem]

[0009] The present invention relates to a volatile composition, the volatile composition comprising: (i) greater than 30% by weight of a volatile composition of a scented hydrophobic material, the scented hydrophobic material comprising one or more volatile compounds; (ii) a scent intensity modifying (RIS) composition that is greater than 20% by weight of the volatile composition, a first aroma intensity adjusting component (RIS component) having a high mean vapor pressure (VP); A second RIS component with a medium mean VP, and a third RIS component having a low average VP; The average VP of each of the one or more volatile compounds is less than at least 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. [Brief description of the drawings]

[0010] [Figure 1] 1 is a perspective view of components of a device for delivering a volatile composition according to the present invention. [Diagram 2] 2 is a cross-sectional side view in horizontal orientation of the device shown in FIG. 1 when the device is placed on a support. [Diagram 3] 2 is a cross-sectional side view of the device shown in FIG. 1 in a vertical orientation when the device is placed on a support. [Figure 4] FIG. 2 is a front perspective view of a variation of a device for delivering a volatile composition according to the present invention. [Diagram 5] FIG. 5 is a rear perspective view of the device of FIG. 4. [Figure 6] FIG. 5 is a perspective view of the components of the device of FIG. 4. [Figure 7] FIG. 5 is a side cross-sectional view of the device of FIG. 4. [Figure 8] 2 is a variation of a device for delivering a volatile composition according to the present invention. [Figure 9A] 1 is a side cross-sectional view of a variation of a device for delivering a volatile composition according to the present invention prior to actuation. [Figure 9B] FIG. 9B is a cross-sectional side view of the device of FIG. 9A after actuation. [Figure 9C] FIG. 9C is a front perspective view of the device of FIGS. 9A and 9B being used in an automotive environment. [Figure 10] FIG. 1 illustrates a variation of a device for delivering a volatile composition according to the present invention. [Figure 11] FIG. 1 is a front perspective view of an apparatus for delivering a volatile composition according to the present invention for use at the entrance to an interior space of a residential environment. [Figure 12] 1 is a graph plotting perfume evaporation results as a function of time for a comparative composition (perfume mixture X only) and an inventive composition (RIS composition and perfume mixture X). [Figure 13] 1 is a graph plotting perfume evaporation results as a function of time for a comparative composition (perfume mixture Y only) and a composition of the present invention (RIS composition and perfume mixture Y). [Figure 14A]1 is a graph plotting the percentage of perfume raw material (PRM) evaporated from Inventive Sample 10 and Comparative Sample 9 within the interior space of a vehicle under parked conditions. [Figure 14B] 1 is a graph plotting the percentage of perfume raw material (PRM) evaporated from Inventive Sample 10 and Comparative Sample 9 within the interior space of a vehicle under parked conditions. [Figure 15A] 1 is a graph plotting the percentage of perfume raw material (PRM) evaporated from Inventive Sample 11 and Comparative Sample 12 within a vehicle interior space under driving conditions. [Figure 15B] 1 is a graph plotting the percentage of perfume raw material (PRM) evaporated from Inventive Sample 11 and Comparative Sample 12 within a vehicle interior space under driving conditions. [Figure 16A] 1 is a graph plotting the percentage of perfume raw material (PRM) evaporated from Inventive Sample 13 and Comparative Sample 14 within a vehicle interior space under driving conditions. [Figure 16B] 1 is a graph plotting the percentage of perfume raw material (PRM) evaporated from Inventive Sample 13 and Comparative Sample 14 within a vehicle interior space under driving conditions. [Figure 17A] 1 is a graph plotting the percentage of perfume raw materials (PRM) evaporated from Inventive Sample 15 and Comparative Sample 16 in a residential interior space under ambient airflow conditions. [Figure 17B] 1 is a graph plotting the percentage of perfume raw materials (PRM) evaporated from Inventive Sample 15 and Comparative Sample 16 in a residential interior space under ambient airflow conditions. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present invention relates to devices and volatile compositions that include scent intensity modifying compositions (hereinafter "RIS compositions") for improving scent delivery within an interior space.

[0012] Perfume raw materials (hereinafter "PRMs") are typically used to provide fragrance in volatile compositions. Specifically, volatile compositions typically include a mixture of high-volatility PRMs and other volatile RPMs with lower volatility. High-volatility PRMs generally have a higher vapor pressure than lower-volatility RPMs. Specifically, at a given temperature, high-volatility PRMs with higher vapor pressures evaporate more easily than less volatile compounds with lower vapor pressures. However, due to the vapor pressure of RPMs, high-volatility RPMs tend to evaporate more quickly at the beginning of use of such products, while lower-volatility RPMs evaporate later, resulting in an overall inconsistent fragrance intensity and aroma characteristics of the volatile composition over the product's lifespan. A high initial evaporation rate leads to an overwhelming initial fragrance intensity, which may result in the perception that the air freshening product has a fragrance intensity that varies over its lifespan, or that the product has lost its effectiveness after the initial fragrance intensity is no longer present.

[0013] The present invention is based on the surprising discovery that a volatile composition comprising a scent hydrophobic material of more than 30% by weight of the volatile composition, the scent hydrophobic material comprising one or more volatile compounds, and a scent intensity regulation (RIS) composition of more than about 20% of the volatile composition, can deliver the one or more volatile compounds at a reduced initial evaporation rate and scent intensity over an extended period of time without being affected by temperature and / or airflow effects from the environment (i.e., the interior space in which the volatile composition is placed). The volatile composition of the present invention, having the claimed levels of scent hydrophobic material in combination with the RIS composition, does not significantly change the scent characteristics of the volatile composition while delivering a reduced intensity of scent, thereby achieving improved scent delivery, as shown by the results as described in the following examples.

[0014] The RIS composition comprises at least two of a first fragrance intensity modifying 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; The average VP of each of the one or more volatile compounds is less than at least 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.

[0015] The RIS composition of the present invention comprises at least two of: a first fragrance intensity modifying component (RIS component) having an average vapor pressure (VP) of greater than 0.3 Torr at 25° C.; a second RIS component having an average VP of 0.07-0.3 Torr at 25° C. from 9.33 to 40.0 Pa; and a third RIS component having an average VP of 0.0099-0.07 Torr at 25° C., wherein each of the first, second, and third RIS components is characterized by an odor detection threshold (ODT) of greater than 20 ppb, and is added to a volatile composition containing a PRM and is capable of delivering the PRM with reduced initial evaporation rate and fragrance intensity over an extended period of time without being affected by temperature and / or airflow effects from the environment (i.e., the interior space in which the volatile composition is placed).

[0016] The technical effect of a RIS composition having at least two of the first, second, and third RIS components having different average vapor pressures at 25° C. instead of a single RIS component is that each of the at least two RIS components can act individually to slow the corresponding evaporation rate of the individual volatile compounds in the volatile composition having different individual vapor pressures. Specifically, the first RIS component can evaporate faster than a first volatile compound having a vapor pressure of less than 0.3 Torr at 25° C., thereby slowing the evaporation rate of the first volatile compound. Similarly, the second RIS component can evaporate faster than a second volatile compound having a vapor pressure of 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 of less than 0.0099 Torr at 25° C.

[0017] The volatile compounds may be designed to evaporate to provide a benefit to the interior space. One or more of the volatile compounds may be a benefit agent to deliver a benefit in the interior space. The benefit agents may include, but are not limited to, fragrances to provide scent benefits, odor neutralizers to eliminate malodors. The technical effect of slowing the evaporation rate of the volatile compounds is to allow for a controlled release of the benefit of the volatile components. Additionally, each of the RIS components is designed to be non-odorizing by having an odor detection threshold (ODT) of greater than 20 ppb.

[0018] For the purpose of describing the present invention in detail, the RIS composition described below is used to formulate a volatile composition with a perfume raw material (PRM) to deliver fragrance benefits to an interior space, and therefore the volatile composition is described as a perfume composition. The RIS composition can also be used to formulate a volatile composition with a PRM to freshen air in an interior space without continuous energy application, and therefore the volatile composition is also described as an air freshening composition. However, it is contemplated that the RIS composition can be configured to be used in various applications to provide benefits to an interior space. Prior to describing the present invention in detail, the following terms are defined for ease of description. Terms not defined should be given their ordinary meaning as understood by those skilled in the relevant art.

[0019] As used herein, "odor detection threshold (ODT)" refers to the minimum concentration of a material that can be detected by the human nose and is determined according to the ODT method described in U.S. Patent No. 9,827,342B2 (hereinafter U.S. Patent No. 9,827,342), issued in the name of The Procter & Gamble Company, published on November 28, 2017. Specifically, the ODT of an individual perfume raw material (PRM) or an individual RIS component can be calculated using the test method outlined in U.S. Patent No. 9,827,342 based directly on the molecular structure of a given PRM or a given RIS component and expressed in ppb. The ODT can be determined by software entitled "winMolconn," release version-1.0.1.3 (commercially available and provided by software provider Hall Associates Consulting, Quincy, Massachusetts, USA, www.molconn.com).

[0020] As used herein, "molar odor index (MOI)" refers to an index that quantifies the odor intensity of a material into a value based on the formula described below. A composition with a higher MOI value correlates with a higher odor intensity compared to another composition with a lower MOI value. Thus, a fragrance composition with a higher MOI value corresponds to a higher scent intensity compared to another fragrance composition with a lower MOI value.

[0021] "ClogP" as used herein refers to the calculated logP value ("ClogP") of a PRM. The octanol / water partition coefficient of a PRM is the ratio between its equilibrium concentration in octanol and its equilibrium concentration in water. The partition coefficient of a PRM used in a freshening composition can be more conveniently expressed as logP, which is a logarithmic form to the base 10. ClogP is determined by a model that calculates the octanol-water partition coefficient (logP or logKow) for common organic molecules directly based on their molecular structure. LogP is a measure of the distribution of a solute between two immiscible liquid phases, octanol and water, and is commonly used as a relative measure of the hydrophobicity of the solute. One method of calculating the LogP of a PRM is using the ACD / Labs LogP software module from Advanced Chemistry Development, Inc. Details of the calculation of logP can be found on the ACD / Labs website (https: / / www.acdlabs.com / products / percepta / predictors / logp / ). The LogP values ​​of PRMs calculated using the ACD / Labs LogP software module and the LogP values ​​of PRMs are used in the selection of PRMs useful in the present invention described in the following examples. However, it will be understood that another suitable method for measuring LogP is to use the "ClogP" program (e.g., ClogP version 4.0 and manual 1999) from BioByte Corp. CLOG P USER GUIDE, version 4.0, BioByte Corp (1999) (http: / / www.bio-byte.com / bb / prod / clogp40.html). A further suitable method for measuring LogP is to use the CLOGP program from Daylight Chemical Information Systems, Inc. (Alison Viejo, CA). CLOGP Reference manual, Daylight version 4.9, released February 1, 2008.

[0022] As used herein, "horizontal" refers to the position of an air freshening product according to the present invention with the membrane facing the environment in an up or down position.

[0023] "Interior space" refers to a finite volume of space in an environment, including, but not limited to, a residential environment, a commercial environment, or a vehicle environment. An interior space can be a room within a residential or commercial environment, such as a sanitary facility. Sanitary facilities can include bathrooms, toilets, bathrooms including toilets, and locker rooms. Interior spaces can also be enclosed spaces, such as furniture for storing personal items, including, but not limited to, shoe cabinets, wardrobes, and gym lockers.

[0024] As used herein, "membrane" refers to a semi-permeable material that allows certain components of a substance to pass through it while blocking others. For those components that do pass through it, the membrane regulates the permeability of the components (i.e., allows certain components to pass through it more quickly than other components). Such components can include molecules, ions, or particles.

[0025] As used herein, "microporous membrane" refers to a material that has a network of small pores.

[0026] As used herein, "natural convection" refers to the flow or movement of a liquid, such as water, or a gas, such as air, in which the fluid motion is not generated by any external source (such as a pump, fan, suction device, etc.), but rather by some parts of the fluid that are heavier than other parts.

[0027] "Non-energized" means that the product is passive and does not need to be powered by an external energy source. In particular, the product does not need to be powered by a heat source, gas, or electric current. The product may be configured as an energized device. An exemplary energized device may be an electric device. The energized device may be an air freshener operated from an electrical outlet or a battery in a car, or other heating device (e.g., a device powered by a chemical reaction such as a catalytic fuel system, a device powered by sunlight, etc.), having a wick and / or a membrane as described in the following description to transport the freshening composition and / or evaporate the freshening composition therefrom.

[0028] As used herein, "permeable material" refers to any material that allows liquids or gases to pass through, including, but not limited to, drywall, wallpaper, wood, vinyl, plastic, plaster, wallboard, fabrics, upholstery materials, paper, woven fabrics, natural polymers, synthetic polymers, and inorganic materials, and mixtures thereof. Permeable materials may also include residues formed on inanimate surfaces, including, but not limited to, dust particles or grease on inanimate surfaces.

[0029] As used herein, the term "inanimate surfaces" refers to surfaces including, but not limited to, fabrics, carpets, and household surfaces such as floors, walls, carpet pads, towels, etc.

[0030] As used herein, "vertical orientation" refers to the position of an air freshening product according to the present invention where the membrane faces the environment in a forward-facing or rear-facing position.

[0031] As used herein, a "volatile composition" refers to a material that can volatilize 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 removal, malodor neutralization, pest control, insecticide, insect repellent, medicine / drug, disinfectant, germicide, mood enhancing effects, aromatherapy aid, scent composition, non-scent composition, or any other use requiring a freshening composition that acts to condition, modify, or otherwise change the air or environment of the location. Furthermore, not all of the component materials of the composition need to be 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 materials (e.g., water, solvents, etc.). It should also be understood that when a composition is described herein as being "delivered," "emitted," or "emitted," this refers to the volatilization of the volatile components of the composition, and not the non-volatile components of the composition need to be emitted.

[0032] As used herein, "perfume composition" includes perfume compositions comprising one or more perfume raw materials (PRMs) intended to treat (e.g., eliminate or reduce / minimize) malodors, deliver a pleasant scent, and / or freshen the air within an interior space.

[0033] As used herein, a "freshening composition" refers to a composition that includes a fragrance composition. The freshening composition may be used with or without a device for delivering the freshening composition.

[0034] As used herein, "touch point" refers to a point of contact or interaction between a volatile composition and a consumer of that volatile composition.

[0035] All percentages, parts and ratios are based on the total weight of the compositions of the present invention unless otherwise specified. When referring to listed ingredients, all such weights are based on active level and therefore do not include solvents or by-products that may be included in commercially available materials unless otherwise specified. The term "weight percentage" may be expressed as "wt %" herein. All molecular weights used herein are weight average molecular weights expressed in grams / mole unless otherwise specified.

[0036] I. Volatile Composition The volatile composition according to the present invention comprises a scented hydrophobic material and a RIS composition. Preferably, the volatile composition is substantially free of a carrier.

[0037] The total weight ratio of the RIS composition to the scented hydrophobic material may be formulated in an effective weight ratio to achieve a desired scent intensity profile.

[0038] The volatile composition may be a fragrance composition, preferably a freshening composition, more preferably an air freshening composition for delivering a scent to an interior space. The air freshening composition may be preferably comprised in a non-energized air freshener, more preferably a continuous non-energized air freshener.

[0039] The volatile composition may comprise an effective amount of the RIS composition adapted to adjust the fragrance intensity. The volatile composition may comprise at least 20% by weight of the volatile composition, preferably 20% to 90% by weight, more preferably 30% to 80% by weight of the RIS composition.

[0040] The technical effect of providing a RIS composition in a volatile composition is that the scent intensity of the scented hydrophobic material is reduced, improving the scent experience within the interior space, especially at the first touch point, at all temperatures and airflow rates.

[0041] Specifically, when a RIS composition is designed for use in a perfume composition comprising a mixture of perfume note groups (top, middle, bottom notes), each of the RIS ingredients can be selected according to its average vapor pressure to slow the evaporation rate of each of the corresponding target perfume note groups by evaporating faster than each of the target perfume note groups. Table 1 below shows exemplary RIS ingredients along with their respective corresponding target perfume note groups and vapor pressures.

[0042] [Table 1]

[0043] The RIS composition comprising at least two of the first, second, or third RIS components measurably reduces the evaporation rate of each corresponding group of perfume raw materials, and allows the vapor release rate of the perfume composition to be reduced primarily through the RIS composition, which can evaporate faster than one or more PRMs in the corresponding group of PRMs, compared to relying solely on the vapor pressure of the PRMs in the perfume composition, adding a carrier to the perfume composition, or reducing the amount of the perfume composition to reduce the evaporation rate of the PRMs and reduce the fragrance intensity. This allows for a more consistent evaporation profile of the perfume composition in the interior space (e.g., by in-head space testing by simulating the environment of the interior space in the interior environment, as shown in the results described below under the examples), thereby improving fragrance delivery.

[0044] Specifically, the RIS composition may be configured to be less scented or unscented compared to a fragrance composition that does not include the RIS composition. Specifically, the RIS composition may have a lower molar odor index (MOI) compared to a fragrance composition. As used herein, "molar odor index (MOI)" refers to an index that quantifies the odor intensity of a material into a value according to the MOI formula described below. A volatile composition with a higher MOI value correlates with a higher odor intensity compared to another composition with a lower MOI value. Thus, a volatile composition with a higher MOI value corresponds to a higher fragrance intensity compared to another volatile composition with a lower MOI value.

[0045] The Molar Odor Index (MOI) of a volatile composition can be determined to identify a desired scent profile of an air freshening composition, for example, for use in continuously non-energized air fresheners, particularly evaporative air fresheners. Specifically, the MOI of a volatile composition may be characterized by its molar odor index (MOI), defined by formula (I) below:

[0046]

number

[0047]

number

[0048]

number

[0049] The volatile composition may be characterized by a molar odor index (MOI) reduction efficiency of at least 10% at 35° C. The volatile composition may be characterized by an MOI at 35° C. of 10% to 100%, preferably 25% to 65%, or different combinations of the upper and lower percentage limits above, or any integer combination of the ranges above.

[0050] The MOI reduction efficiency of a volatile composition is determined according to the following formula (II):

[0051]

number

[0052] Specifically, the MOI reduction efficiency determines the reduction in the fragrance intensity of a volatile composition that includes a RIS composition and a fragrance hydrophobic material compared to a volatile composition that includes a fragrance hydrophobic material but does not include a RIS composition. Methods for determining the MOI of a RIS composition are described below according to each component in the volatile composition.

[0053] The RIS composition can also be added in an effective amount to change the MOI of the volatile composition. Specifically, adding 90% of the RIS composition reduces the MOI, achieving an MOI reduction efficiency of 85%. If higher fragrance intensity is preferred, the RIS composition can also be adjusted accordingly. Thus, the use of the RIS composition allows flexibility in formulating a wide range of fragrance intensities to provide a wide range of products, low-scented air freshening compositions and / or air freshening with higher fragrance intensity, based on consumer preferences.

[0054] Without wishing to be bound by theory, compared to the use of conventional diluents, such as 3,5,5-trimethylhexyl acetate, 3,7-dimethylocta-1,6-dien-3-ol and 4-methyl-2-(2-methylpropyl)oxan-4-ol, listed in Table 2 below, to reduce fragrance intensity, the use of a RIS composition having a combination of at least two of the first / second / third RIS components delays the evaporation of at least two of the top / middle / bottom notes without affecting the fragrance characteristics.

[0055] [Table 2]

[0056] Referring to Table 2, the diluents 3,5,5-trimethylhexyl acetate and 3,7-dimethylocta-1,6-dien-3-ol, either individually or in combination, have a 1×10 4 The use of 3,5,5-trimethylhexyl acetate as the sole diluent slows the evaporation rate of only the top notes, but not the middle and bottom notes, because 3,5,5-trimethylhexyl acetate evaporates from the volatile composition at the start of use before the top notes, and the evaporation of the middle and bottom notes is not controlled. Similarly, the use of 3,7-dimethylocta-1,6-dien-3-ol and 4-methyl-2-(2-methylpropyl)oxan-4-ol, as the sole diluent, only addresses the middle and bottom notes, respectively, from a vapor pressure perspective. The combination of 3,5,5-trimethylhexyl acetate, 3,7-dimethylocta-1,6-dien-3-ol, and 4-methyl-2-(2-methylpropyl)oxan-4-ol has a vapor pressure of 1×10 at 35° C. 4 MOI (4.00×10 4), which means that when this combination is added to a perfume mixture having top, middle and bottom notes, the odor intensity of this combination can affect the odor characteristics of the perfume mixture.

[0057] The fragrance composition according to the present invention comprises a fragrance mixture; a fragrance intensity modulating composition (RIS composition) comprising a first fragrance intensity modulating component (RIS component) having a mean vapor pressure (VP) of greater than 40.0 Pa (0.3 Torr) at 25° C.; A second RIS component with a mean VP of 9.33 to 40.0 Pa (0.07 to 0.3 Torr) at 25 °C, and a third RIS component having an average VP between 0.0099 and 0.07 Torr at 25°C; The first, second, and third RIS components are each characterized by an odor detection threshold (ODT) greater than 20 ppb.

[0058] The technical effect of the combination of the first RIS component with the second or third RIS component is that the first RIS component can improve the delivery of a "just right" fragrance intensity without being overpowering ("smelling too strong") by evaporating faster than the top notes that evaporate quickly and form a person's first impression of the fragrance composition (which is very important at the first touch point, for example, when a device containing the fragrance composition is placed at the entrance to an interior residential space as shown in FIG. 11, as described below).

[0059] Furthermore, the scent characteristics of a volatile composition, and in particular the fragrance characteristics of a fragrance composition, may change at different temperatures during different seasons.

[0060] Preferably, the volatile composition of the present invention comprises a scent hydrophobic scent material, the scent hydrophobic material being a non-functional perfume mixture comprising one or more top notes, one or more middle notes, and one or more bottom notes. At least 5% of any of the one or more top notes, one or more middle notes, and one or more bottom notes in the non-functional perfume mixture may comprise an odor detection threshold (ODT) of less than 20, while the volatile composition may be characterized by a scent profile consistency variation ("SCC variation") of less than 10% within a temperature range of 5 to 35°C. The SCC variation is determined by the following formula (III):

[0061]

number

[0062] At least 25%-65% of one or more of the top note, middle note, and bottom note may comprise an odor detection threshold (ODT) of less than 20.

[0063] This allows for a more consistent scent profile of the perfume composition in the interior space (e.g., by in-head space testing by simulating the environment of the interior space within the interior environment, as shown in the results described below under the examples), thereby improving scent delivery. Specifically, Examples III-VI all show that the compositions and freshening products according to the present invention have low variation in scent profile (by having SCC variation values ​​of less than 10%), allowing for an improved sensory impression for the user.

[0064] A.RIS composition The RIS composition was diluted to 1 × 10 at 35 °C. 4 It may be characterized by the following Molar Odor Index (MOI), where MOI is defined by formula (IV) below:

[0065]

number

[0066]

number

[0067] Highly volatile compounds, which have high vapor pressures, will evaporate more rapidly at higher temperatures than at lower temperatures. 4A RIS composition with the following MOI means that the evaporation of the RIS composition does not affect or only has a minimal effect on the overall scent delivered within the interior space. As a result, note suppression is improved in the fragrance composition at higher temperatures without affecting the scent characteristics, while at the same time decreasing the scent intensity. The inventive fragrance composition according to the present invention has a reduced MOI (corresponding to a decrease in scent intensity) relative to a fragrance composition that does not contain a RIS composition, as shown in the results described under the heading of Examples below, specifically under the heading of Example I. Table 3 below lists exemplary RIS compositions according to the present invention.

[0068] [Table 3]

[0069] The total weight ratio of the first RIS component to the second RIS component is 1×10 at 35° C. 4 The RIS may be formulated in an effective weight ratio to achieve the following MOI: 1 x 10 at 35° C. Additionally, the total weight ratio of the first RIS component, the second RIS component, and the third RIS component is less than 1 x 10 at 35° C. 4 It can be formulated in effective weight ratios to achieve an MOI of less than:

[0070] First RIS component The RIS composition may include a first RIS component having a mean vapor pressure (VP) of greater than 40.0 Pa (0.3 Torr) at 25° C. in an effective amount relative to the weight of the RIS composition. Specifically, the first RIS component may be configured in an effective amount suitable for adjusting the fragrance intensity of the volatile composition including the top note. Specifically, the first RIS component may be at least 5% by weight of the RIS composition, 5% to 30% by weight, 10% to 25% by weight, 15% to 25% by weight, 20% to 25% by weight, or a different combination of the above upper and lower percentage limits, or an amount of any integer combination within the above ranges. The first RIS component may be an alcohol-containing compound including an alcohol. Specifically, the first RIS component may be a C4 to C8 alcohol.

[0071] The first RIS component may 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-hydroxypropanoate, 2-butoxyethanol, ethyl 3-hydroxybutanoate, and mixtures thereof, preferably selected from the group consisting of MMB, 2-ethylbutan-1-ol, 4-methylpentan-1-ol, 3-methylpentan-1-ol, and mixtures thereof, and even more preferably is MMB.

[0072] The physicochemical properties of compounds suitable for the first RIS component are listed in Table 4 below.

[0073] [Table 4]

[0074] Second RIS component The RIS composition may include a second RIS component having a mean vapor pressure (VP) of about 0.07 to about 0.3 Torr at 25° C. in an effective amount relative to the weight of the RIS composition. Specifically, the second RIS component may be configured in an effective amount suitable for adjusting the fragrance intensity of the volatile composition including the middle note. Specifically, the second RIS component may be at least 20% by weight of the RIS composition, 20% to 50% by weight, 25% to 50% by weight, 30% to 45% by weight, 40% to 45% by weight, or a different combination of the upper and lower percentages above, or a combination of any integers within the ranges above. 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, which compound may include the following structure:

[0075] [ka] (In the formula, R1 and R2 are selected from the group of substituted or unsubstituted saturated or unsaturated alkyl chains, substituted or unsubstituted cycloalkyl, and substituted or unsubstituted aryl, preferably selected from the group of substituted or unsubstituted saturated or unsaturated alkyl chains.

[0076] Specifically, the second RIS component can be a C6-C12 ester-containing compound.

[0077] The second RIS component may be selected from the group consisting of dimethyl hexanedioate (DMA), ethyl 3,5,5-trimethylhexanoate, dimethyl butanedioate, diethyl propanedioate, ethyl 3-acetyloxyhexanoate, methyl 5-acetyloxyhexanoate, 3-O-butyl 1-O-ethylpropanoate, dipropan-2-yl hexanedioate, (4-methoxyphenyl)methyl formate, ethyl 3-hydroxyhexanoate, and mixtures thereof, more preferably selected from the group consisting of DMA, ethyl 3-acetyloxyhexanoate, methyl 5-acetyloxyhexanoate, 3-O-butyl 1-O-ethylpropanedioate, and mixtures thereof, and even more preferably DMA.

[0078] The physicochemical properties of suitable compounds for the second RIS component are listed in Table 5 below.

[0079] [Table 5]

[0080] The third RIS component The RIS composition may include a third RIS component having a mean vapor pressure (VP) of about 0.0099 to about 0.07 Torr at 25° C. in an effective amount relative to the weight of the RIS composition. Specifically, the third RIS component may be configured in an effective amount suitable for adjusting the fragrance intensity of the volatile composition including the bottom note. The third RIS component may be at least 10% by weight of the RIS composition, 10% to 45% by weight, 15% to 45% by weight, 20% to 40% by weight, 30% to 40% by weight, or a combination of different upper and lower percentages of the above, or any integer combination within the above ranges. The third RIS component may be an alcohol-containing compound, and preferably, the third RIS component is a C5 to C10 alcohol. The third RIS component may 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, and even more preferably DPM.

[0081] The physicochemical properties of suitable compounds for the third RIS component are listed in Table 6 below.

[0082] [Table 6]

[0083] B. Fragrant hydrophobic materials The volatile composition includes a scented hydrophobic material formulated in an effective amount to provide the desired scent characteristics and to be uniformly solubilized in the volatile composition to provide a consistent scent profile. The scented hydrophobic material may have a ClogP of greater than 0.01, preferably from 0.01 to 6.5, more preferably from 0.5 to 5.5.

[0084] The fragrance hydrophobic material may be a fragrance mixture that includes one or more non-functional fragrance raw materials. A non-functional fragrance raw material ("non-functional PRM") is utilized solely for its fragrance, scent, or hedonic benefits and does not include any of the first, second, or third RIS components described above.

[0085] Equation (IV) above for determining the MOI of a RIS composition may be modified for use in selecting a PRM for a perfume mixture containing top, middle and bottom notes of a fragrance for use in, for example, non-continuously energized air fresheners, particularly evaporative air fresheners.

[0086] Specifically, the MOI of a fragrance hydrophobic material, such as a perfume mixture having one or more PRMs, can be characterized by its molar odor index (MOI), which is defined by formula (V) below:

[0087]

number

[0088]

number

[0089] The one or more non-functional PRMs may be cyclic ethylene dodecanedioate, 4-tertiary butyl cyclohexyl acetate or vertenex™, allyl amyl glycolate, allyl caproate, allyl cyclohexane propionate, allyl heptanoate, amberxtreme, ambrox, isoamyl acetate, isoamyl propionate, anethole usp, benzyl acetate, benzyl propionate, cis-3-hexen-1-ol, beta-naphthol methyl ether or nerolin, caramel furanone, caryophyllene extra, cinnamalva(trademark) or cinnamyl nitrile, cinnamyl acetate, cinnamyl nitrile, cis-3-hexenyl butyrate, cis-3-hexenyl acetate, cis-3-hexenyl-α-methylbutyrate, cis-6 -Nonen-1-ol, citrathal or citral diethyl acetal, citronellol, citronellyl acetate, citronellyl butyrate, clonal or dodecanenitrile, kolanol or 2,2-dimethylcyclohexanepropanol, coumarin, cumin nitrile, cumin alcohol, tricyclodecenyl isobutyrate or cyclabute, cyclohexyl ethyl acetate, dihydromyrcenol, dimethyl anthranilate, dimethyl benzyl carbinyl acetate, dimethyl-2,6-heptane-2 -ol or freesiol, sandalpentenol or evaporol, ethyl 2-methylpentanoate, ethyl acetoacetate, ethyl linalool, ethyl maltol, ethyl phenylglycidate, ethyl vanillin, ethyl 2-methylbutyrate, eucalyptol, eugenol, floracetate, ozonepropanal or floralozone, fructalate™ or raspberry dicarboxylate, geraniol or trans-3,7-dimethyl-2,7-octadiene 1-ol, grisalva™ or amber furane, habanolide™ or (E)-12-musk decenone, helvetolide™ or musk propanoate, hexyl acetate, hexyl-2-methylbutyrate, indocolore™ or 1-phenylvinyl acetate, isobornyl acetate, isoeugenyl acetate, isopropyl myristate, isoamyl butyrate, isoeugenol, koumalactone™ or dihydromint lactone, laevotrisandol or sandranol, lemonile(TM) or homogeranylnitrile, levistamel(TM) or mesitenelactone, linalool, linalyl acetate, linalyl isobutyrate, limeolene or dihydromyrcenol, menthol, methyl dioxolane or fructone(TM), methyl isobutenyl tetrahydropyran, methyl pamplemousse™ or grapefruit acetal, methyl phenylcarbinyl acetate or styraryl acetate, methyl salicylate, montaverdi™ or green cyclopropionate, mugetanol™ or muguet ethanol, neocaspirene, neofolione or melonnonenoatenerolidol, orange terpenes, orcinyl-3 or 3-methoxy-5-methylphenol, oxane™ or cis-galbanum oxalate thiane, paracresyl methyl ether or paramethylanisole, patchouli, phenylethyl alcohol, phenylethyl dimethyl carbinol, polysantol™ or santol pentenol, prenyl acetate, sauvignone™ or 5-mercapto-5-methyl-3-hexanone, sclareolate™ or clarypropionate, shisolia, strawberiff™ or 2-methyl-2-pentenoic acid, terpinolene or 4-isopropylidene-1-methylcyclohexene, tetrahydro muguol™ or citrus ocimenol, thesaron™ (1R,6S)-2,2,6-trimethyl-cyclohexane carboxylic acid ethyl ester, tobacarol™ or 5-tetramethyloxatricyclododecane, undecavertol™ or violet decenol, verdox™ or green acetate, verduralB™ or (Z)-3-hexen-1-yl isobutyrate, violettyne™ or violet dienyne, violiff™ or violet methyl carbonate, and mixtures thereof, preferably the one or more non-functional perfume raw materials is homogeranyl nitrile.

[0090] The one or more non-functional perfume raw materials may be selected from the group consisting of volatile aldehydes, ketones, and mixtures thereof.

[0091] The one or more non-functional PRMs include at least one volatile aldehyde, the at least one volatile aldehyde being Adoxal™ (2,6,10-trimethyl-9-undecenal), Bourgeonal™ (4-t-butylbenzenepropionaldehyde), Lilestralis 33™ (2-methyl-4-t-butylphenyl)propanal), Cinnamic aldehyde, Cinnamaldehyde (phenylpropenal, 3-phenyl-2-propenal), Citral, Neral (dimethyloctadienal, 3,7-dimethyl-2,6-octadien-1-al), Cyclal C™ (2,4-dimethyl-3-cyclohexene-1-carbaldehyde), Florhydral™ (3-(3-isopropyl-phenyl)-butyraldehyde), Citronellal (3,7-dimethyl-6-octenal), Thymal (2-methyl-3-(para-isopropylphenyl)propionaldehyde), Cyclamen aldehyde, Lime aldehyde (α-methyl-p-isopropylphenylpropylaldehyde), Methylnonylacetaldehyde, Aldehyde C12 MNA (2-Methyl-1-undecanal), Hydroxycitronellal, Citronellal Hydrate (7-Hydroxy-3,7-dimethyloctan-1-al), Helional™ (3-(1,3-benzodioxol-5-yl)-2-methylpropanal; 2-Methyl-3-(3,4-methylenedioxyphenyl)propanal), Intrelevenaldehyde (Undec-10-en-1-al), Ligustral™ (2,4-Dimethylcyclohex-3-en-1-caprylamide), (2-methyl-3-propanal), Trivertal™ (2,4-dimethyl-3-cyclohexene-1-carboxaldehyde), Jasmorange™ or Satinaldehyde (2-methyl-3-tolylpropionaldehyde, 4-dimethylbenzenepropanal), Lyral™ (4-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde), Melonal™ (2,6-dimethyl-5-heptenal), Methoxymelonal (6-methoxy-2,6-Dimethylheptanal), Methoxycinnamaldehyde (trans-4-methoxycinnamaldehyde), Myrac aldehyde™ (isohexenyltetrahydrobenzaldehyde), trifernal™ (3-methyl-4-phenylpropanal, 3-phenylbutanal), lilial (3-(4-tert-butylphenyl)-2-methylpropanal), benzenepropanal (4-tert-butyl-α-methyl-hydrocinnamaldehyde), Dupical™ (muguet butanal), tricyclodecylidene butanal (4-tricyclodecylidene-2,6-decylidene-8-butanal), Melafleur™ (1,2,3,4,5,6,7,8-octahydro-8,8-dimethyl-2-naphthaldehyde), methyl octylacetaldehyde, aldehyde C-11 MOA (2-Methyldec-1-al), Onicidal™ (2,6,10-trimethyl-5,9-undecadien-1-al), Citronellyloxyacetaldehyde, Muguet aldehyde50™ (3,7-dimethyl-6-octenyl)oxyacetaldehyde, Phenylacetaldehyde, Mefranal™ (3-Methyl-5-phenylpentanal), Dimethyltetrahydrobenzenealdehyde (2,4-Dimethyl-3-cyclohexene-1-carboxaldehyde), 2-Phenylproprionaldehyde, Hydrotrope aldehyde (2-Phenylpropionaldehyde), Canthoxal™ (para-anisylpropanal), Anisylpropanal 4-Methoxy-α-methylbenzenepropanal (2-Anisylidenepropanal), Cyclemone Preferably, the one or more non-functional perfume raw materials are selected from the group consisting of Melonal™ (2,6-dimethyl-5-heptenal), methoxymelonal (6-methoxy-2,The one or more non-functional perfume raw materials are selected from the group consisting of isojasmone, methyl beta naphthyl ketone, musk indanone, tonalid or musktetralin, alpha-damascone, beta-damascone, delta-damascone, iso-damascone, damascenone, methyl-dihydrojasmonate, menthone, carvone, camphor, fenchone, alpha-ionone, beta-ionone, dihydro-beta-ionone, gamma-methyl ionone, alpha-methyl ionone, n-beta methyl ionone, iso ... , fleuramone™ or 2-heptylcyclopentan-1-one, dihydrojasmone, cis-jasmone, iso-e-super™ or patchoulietanone, methyl cedryl ketone or methyl cedrylone, acetophenone, methyl-acetophenone, para-methoxy-acetophenone, methyl-β-naphthyl-ketone, benzyl-acetone, benzophenone, para-hydroxy-phenyl-butanone, celery ketone or livescone™ , 6-isopropyldecahydro-2-naphthone, dimethyl-octenone, Freskomenthe (trademark) or 2-butan-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-menthen-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™ or pepperhexanone, dulcinyl™ or 4-(1,3-benzodioxol-5-yl)butan-2-one, gelsone™ or ethyl 2-acetyloctanoate, hexalon™ or allyl alpha ionone, methyl cyclocitrone™ or 1-(3,5,6-trimethyl-1-cyclohex-3-enyl)ethanone, methyl-lavender-ketone™ or 3-(hydroxymethyl)nonan-2-one, orivone™ or 4-(2-methylbutan-2-yl)cyclohexan-1-one, para-tertiary-butyl-cyclohexanone, verdone™ or 2-tert-butylcyclohexan-1-one, delphone™ or 2-pentylcyclopentan-1-one, muscone, neobutenone™ or 1-(5,5-dimethyl-1-cyclohexenyl)pent-4-en-1-one, plicatone™ or octahydro-7-methyl-1,4-methanonaphthalen-6(2H)-one, veloutone™ or 2,2,5-trimethyl-1-cyclohexanone, Preferably, one non-functional perfume raw material is 2-butan-2-ylcyclohexan-1-one, and may comprise at least one ketone selected from the group consisting of methyl-5-pentylcyclopentan-1-one, 2,4,4,7-tetramethyl-oct-6-en-3-one, tetrameran™ or floral undecenone, hedione™ or methyl dihydrojasmonate, gamma-undecalactone, gamma-decalactone, gamma-octalactone, ethylene brassylate, pentadecanolide, methyl nonyl ketone, cyclopentadecanone, 3,4,5,6-tetrahydropseudoionone, 8-hexadecenolide, dihydrojasmone, 5-cyclohexadecenone, and mixtures thereof.

[0092] C. Activators The volatile composition may include an active agent. The active agent provides cleaning, surface care protection, fabric conditioning or softening, fabric refreshing, wrinkle removal, air freshening, air deodorization, malodor removal, or similar benefits in interior spaces. The active agent does not include water or deionized water. In the freshening composition, the active agent may provide a true malodor removal benefit. A true malodor removal benefit is defined as a malodor reduction that is both sensorially and analytically measurable (e.g., by GC). Thus, when an air freshening composition provides a true malodor removal benefit, the air freshening composition does not function by simply using a perfume to hide or mask the odor. When the air freshening product is provided with a malodor control agent, the air freshening product may use one or more of several odor control mechanisms. One suitable malodor control agent is cyclodextrin.

[0093] Active agents may also include surfactants, emulsifiers, solubilizers, polymers, malodor counteractants such as cyclodextrin, hydrogen peroxide, buffers, and zinc ions.

[0094] D. Optional ingredients The volatile composition can optionally include an odor masking agent, an odor blocking agent. "Odor blocking" refers to the ability of a compound to dull a person's sense of smell. "Odor masking" refers to the ability of a compound to mask or hide the odor of a malodorous compound. Odor masking can include a compound with a non-unpleasant or pleasant odor that is administered to limit the ability to detect the malodorous compound. Odor masking can involve the selection of a compound that changes the overall scent perception provided by the combination of odorous compounds by coordinating with the expected malodor.

[0095] II. Equipment 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 evaporating a freshening composition in the interior occupancy of a vehicle, an area located in a residential interior space near the entrance to the home (as shown in FIG. 11), a bathroom including a toilet, to provide various benefits such as preventing bacterial growth, freshening, removing odors, or adding fragrance to the air in the bathroom. However, it is contemplated that the product can be configured to be used in various applications to deliver the freshening composition to provide benefits to interior environments such as rooms or furniture for storing household items in domestic and commercial facilities, and the air freshening product can include, but is not limited to, consumer products such as air freshening products, air fresheners, etc.

[0096] It is contemplated that the device may be configured for a variety of applications to deliver a volatile composition to the atmosphere and / or surfaces of an interior space, so long as the volatile composition evaporates from the device. For purposes of this disclosure, and not intended to limit the scope of the invention, the devices described are non-energized devices.

[0097] The device may also include a delivery member configured to contain the liquid phase of the composition and evaporate the liquid phase of the composition. The delivery member may include porous or semi-porous substrates including wicks, membranes, gels, felt pads. An exemplary delivery member may be a membrane, which is a semi-permeable material that allows certain components of a substance to pass through while blocking others. For components that pass through the membrane, the membrane regulates the permeability of the component (i.e., allows certain components to pass through faster than others). Such components may include molecules, ions, or particles.

[0098] For purposes of describing the invention in detail, the invention will be described below in the context of a bathroom environment and an automotive environment, however, it will be understood that the invention may be practiced in any interior environment having permeable materials and including surfaces that are harboring bacteria.

[0099] FIG. 1 is a perspective view of the components of a device 2 for containing a volatile composition 13, which, when assembled and filled with the composition 13, define an apparatus 1 for delivering a volatile composition according to the present invention (an exemplary embodiment is shown in FIG. 2). The device 2 may be a volatile composition cartridge. With reference to FIGS. 1 and 2, the device 2 comprises a container 10 including a reservoir 11 for containing the volatile composition 13. The container 10 may be formed of a substantially vapor-impermeable material designed to resist diffusion of the gas phase of the composition 13. For example, the container 10 may be formed of metal, glass, ceramic, porcelain, tile, and plastic, including, but not limited to, thermoplastic materials, and other known materials suitable for thermoforming, injection molding, and blow molding. A delivery member 12, such as, for example, a membrane 12, may be disposed within the container 10 and configured to be in fluid communication with the composition 13.

[0100] Figure 2 shows a schematic diagram of the assembled device 1 of Figure 1 in a horizontal orientation with a volatile composition 13 disposed within the container 10. With reference to Figure 2, the container 10 may comprise an end wall 101, a side wall 102, and an opening 103 at a periphery 104 of the side wall 102 that defines a reservoir 11. For example, if the container 12 is made of a thermoplastic material, the membrane 12 may be attached to the periphery 104 of the container 10 using conventional heat staking methods to contain the volatile composition 13 within the reservoir 11.

[0101] The device 1 can be configured to be used in any desired orientation, including but not limited to a vertical orientation, as shown in Figure 3. Figure 3 shows a side schematic view of the device 1 of Figure 1, which is substantially similar to the device 1 of Figure 1, except that the membrane 12 includes a first surface 121 disposed in fluid communication with the volatile composition 13, and a second surface 122 that faces the environment and away from the volatile composition 13.

[0102] Figure 4 shows a front perspective view of a further embodiment of device 1 according to the invention, and Figure 5 shows a rear perspective view of device 1 prior to use. Figure 6 shows the internal components of device 1 of Figures 4 and 5. Device 1 of Figures 4, 5 and 6 has substantially the same features as device 1 of Figure 1, with further components described below.

[0103] 4 and 5, the device 1 comprises 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 is provided with a frame opening 403 (hereinafter "opening") located substantially in the center of the rear frame 402. An actuator 404 movable relative to the housing 40 is provided for actuating the device 1. The actuator 404 may be a push button 404 (hereinafter "button") disposed within the opening 403 and movable relative to the rear frame 402 to allow 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 comprises a window 405 configured to display the container 10.

[0104] Referring again to FIG. 6, when the volatile composition 13 is a liquid volatile composition, the device 1 can include a rupturable substrate 60 sealably attached to and covering the reservoir 11 to prevent the volatile composition 13 from being released until the device 1 is activated. The rupturable substrate 60 can be ruptured to release the volatile composition 13 by activating a rupture mechanism 61 located adjacent to the rupturable substrate 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 can be formed of one or more springs 65. One or more rupture elements 66 are disposed within the rupture mechanism 61 for puncturing the rupturable substrate 60. The rupture elements 66 can be pins. As described above with respect to FIG. 1, the membrane 12 can be sealably attached to a flange 67 located on the outer periphery 104 of the container 10. The membrane 12 surrounds 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 on the membrane 12 through the button 404. 3 In a residential interior space such as a toilet having an interior space volume of 15 cm 2 ~35cm 2 evaporative surface area of ​​27 cm 2 The size and dimensions of the device 1 may be configured for placement on a surface within the interior space.

[0105] 7, to activate the device 1, a user presses the button 404 until it contacts the rupture mechanism 61 (through deflection of the membrane 12 in direction X towards the front end of the container), causing a rupture element 66 on the rupture mechanism 61 to pierce the rupturable substrate 60. Once the rupturable substrate 60 is pierced, the volatile composition 13 flows out of the container 10, wetting the membrane 12, and is then delivered to the surrounding atmosphere by evaporation from the membrane 12. Specifically, wetting of the membrane 12 occurs when the liquid phase of the volatile composition 13 contacts and spreads over at least a portion of the first surface 121 of the membrane 12. The membrane 12 is configured to prevent the liquid phase of the volatile composition 13 from flowing out of the membrane 12, but allows the gas phase of the volatile composition 13 to evaporate from the second surface 122, such that the volatile composition 13 is delivered to the environment.

[0106] The volatile composition 13 may be delivered through a wick, which may be configured to have a variety of different shapes and sizes. For example, the wick may have a cylindrical or rectangular shape. Depending on its shape, the wick may be defined by a length and a diameter or width. The wick may have a variety of lengths. For example, the length of the wick may 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 may have a variety of diameters or widths. For example, the diameter or width of the wick may be at least 1 mm, or at least 2 mm, or at least 3 mm, or at least 4 mm. The wick may exhibit a density. The wick density may be about 0.100 grams / cm. 3 ("g / cc") to about 1.0 g / cc. The core may include a porous or semi-porous substrate. The core may be constructed of a variety of materials and construction methods, including, but not limited to, bundled fibers compressed and / or formed into various shapes via overlaps (e.g., nonwoven sheet overlaps), or bundled fibers made of sintered plastics such as PE, HDPE, or other polyolefins. For example, the core may be made of a plastic material such as polyethylene or a polyethylene blend.

[0107] Figure 8 shows a variation of a device 1 for delivering a volatile composition according to the present invention. The device 1 of Figure 8 comprises substantially the same components as the device 1 of Figure 4, except for the housing design. In particular, the device 1 of Figure 8 does not comprise a push button and has a housing design that differs from the housing 40 of the device 1 in that the housing 40 of Figure 8 is configured to releasably engage the membrane 12 enclosing the container 10 (the membrane 12 and container 10 define a delivery engine), such that the device 1 is activated by insertion of a delivery engine.

[0108] 9A and 9B further show a variation of the device 1 for delivering a volatile composition according to the present invention in a first position before activation (FIG. 9A) and a second position after activation (FIG. 9B). The device 1 of FIG. 9A and 9B differs from the device 1 of FIG. 4 in that the actuator 404 is a movable clip 404 for attachment to an air vent 900 in a vehicle environment as shown in FIG. 9C. The movable clip 404 can rotate relative to the housing 40 to move at least a portion of the membrane 12 and the rupturable element 66 towards the rupturable substrate 60, pierce the rupturable substrate 60, release at least a portion of the volatile composition 13 from the container 10, and evaporate a portion of the volatile composition 13 from the device 1. It will be appreciated that the actuator 404 can be configured using known mechanical methods to move linearly or in a rotational motion to move at least a portion of the membrane 12 and the rupturable element 66 towards the rupturable substrate 60 and pierce the rupturable substrate. 3 In a vehicle interior space having a volume of 7 cm 2 ~15cm 2 To achieve a compact design of the device 1, the membrane 12 may include an evaporation surface area of ​​11 cm 2 The evaporation surface area may include

[0109] Figure 9C is a front perspective view of the device 1 of Figures 9A and 9B used in a vehicle environment, the device 1 being placed at the first touch point in the vehicle environment, i.e., close to the vehicle door that opens to enter the vehicle interior space in the vehicle environment. The device 1 may be a car air freshener product, and the advantage of the car air freshener product having the volatile composition 13 with the RIS composition according to the present invention is that the user experiences a "just right" fragrance intensity that is not overwhelming ("not too strong") by evaporating quickly and faster than the top notes that form a person's first impression of the fragrance composition, which is very important at the first touch point.

[0110] FIG. 10 shows a variation of the device 1 for delivering a volatile composition according to the present invention. The device 1 of FIG. 10 comprises substantially the same components as the device 1 of FIG. 6, with the exception that the device 1 of FIG. 10 does not comprise a push button 404, a front cover 401, and a rear frame 402. The device 1 of FIG. 10 comprises a disk-shaped housing 40, which has a housing side opening 44 at the side of the housing 40, through which 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 when the tabletop space is limited, the device 1 can be attached to a wall surface via a conventional vacuum suction cup, and the device 1 can be placed close to the wall surface. Alternatively, the device 1 can be supported horizontally on a support in the interior environment by placing it on the housing bottom surface 42 of the housing 40.

[0111] 11 is a front perspective view of an apparatus for delivering a volatile composition according to the present invention for use at an entrance to an interior space 110 of a residential environment (hereinafter the "entrance interior space"). The entrance interior space 110 is 2 m 3Since the device 1 may have a volume of 100 mm or more, the device 1 may be configured in any size and shape for use in the entrance interior space 110. The entrance interior space 110 is also the first touch point where the user first interacts with the device 1 and experiences the volatile composition 13. The device 1 may be a room air freshener product, and thus the advantage of a room air freshener product having a volatile composition 13 with a RIS composition according to the present invention is that the user experiences a "just right" fragrance intensity that is not overwhelming ("not too strong") by evaporating quickly and faster than the top notes that form a person's first impression of the fragrance composition, which is very important at the first touch point.

[0112] The device 1 of the present invention can be configured for use in a variety of applications that deliver the volatile composition 13 to the atmosphere and / or surface in a continuous, non-energized manner, so long as the volatile composition 13 can evaporate from the membrane 12 into the interior space. Thus, the specific physical properties of the membrane 12 can be selected based on the specific desired application of the device 1 designed to be actuated by peeling off the vapor-impermeable substrate 14 or by breaking the vapor-impermeable substrate 14. Membranes and vapor-impermeable substrates designed to be removably attached are well known and will not be described further. Examples of suitable physical parameters of the membrane 12 and vapor-impermeable substrate 14 suitable for the device 1 designed to be actuated by breaking the vapor-impermeable substrate 14 are described below.

[0113] The membrane 12 can be a microporous membrane and can have an average pore size of about 0.01 to about 1 micron, about 0.01 to about 0.06 micron, about 0.01 to about 0.05 micron, about 0.01 to about 0.04 micron, about 0.01 to about 0.03 micron, about 0.02 to about 0.04 micron, or about 0.02 micron. Additionally, the membrane 12 can be filled with any suitable fillers and plasticizers known in the art. Fillers can include finely divided silica, clays, zeolites, carbonates, activated carbon, and mixtures thereof. An example of a filled membrane is a silica-filled ultra-high molecular weight polyethylene (UHMWPE) membrane, such as that described in U.S. Pat. No. 7,498,369. While any suitable filler material and weight percentage can be used, typical filler percentages of silica can be 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 membrane thicknesses include, but are not limited to, about 0.01 mm to about 1 mm, about 0.1 mm to about 0.4 mm, about 0.15 mm to about 0.35 mm, or about 0.25 mm, or different combinations of the above upper and lower percentage limits, or any combination of integers within the above ranges. Furthermore, the evaporative surface area of ​​membrane 12 can be about 2 cm 2 ~Approx. 100cm 2 , about 2 cm 2 ~about 25cm 2 , about 10cm 2 ~about 50cm 2 , about 10cm 2 ~ approx. 45cm 2 , about 10cm 2 ~Approx. 35cm 2 , about 15cm 2 ~about 40cm 2 , about 15cm 2 ~Approx. 35cm 2 , about 20cm 2 ~Approx. 35cm 2 , about 30cm 2 ~Approx. 35cm 2 , about 35cm 2or a different combination of the above upper and lower percentage limits, or any integer combination of the above ranges. 2 ~80cm 2 , 5cm 2 ~54cm 2 , 6cm 2 ~27cm 2 , 7cm 2 ~15cm 2 or different combinations of the above upper and lower percentage limits, or any integer combination of the above ranges.

[0114] The vapor-impermeable substrate 14 may be formed of any material that can be broken by application of a predetermined force (with or without an element such as a breaking element to aid in such breaking). In embodiments in which the vapor-impermeable substrate 40 is intended to contain the composition 13 when the device 1 is not in use, the vapor-impermeable substrate 14 may be formed of any suitable barrier material that reduces or prevents evaporation of the composition 13. Such materials may be impermeable to vapor and liquids. Suitable barrier materials for the vapor-impermeable substrate 14 include, but are not limited to, coated or uncoated films, such as polymeric films, webs, foils, and composites such as foil / polymeric film laminates. Examples of foils that can be used as barrier materials include nitrocellulose protective lacquer, polyurethane primer, and 15 g / m 2 ... 2and micron aluminum foils with a polyethylene coating (Lidfoil 118-0092). Suitable polymeric films include, but are not limited to, polyethylene terephtalate (PET) films, acrylonitrile copolymer barrier films (such as those sold under the trade name Barex® by INOES), ethylene vinyl alcohol films, and combinations thereof. Coated barrier films are also contemplated for use 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.

[0115] The following examples are intended to more fully illustrate the present invention and should not be construed as limiting the present invention, since many variations thereof are possible without departing from the scope of the invention. All parts, percentages, and ratios herein are expressed as weight percent unless otherwise specified. EXAMPLES

[0116] The test equipment / materials and test compositions are first described under the heading "Materials", then the "Test Method" is presented, and finally the results are discussed. Data is provided that demonstrates that the compositions of the present invention have improved fragrance intensity control in an interior environment. The equipment and materials used in the "Test Method" described below are listed in Table 4 below. The formulations of the compositions of the present invention are shown in Table 5 below. Each composition is prepared using conventional methods.

[0117] In the following examples, the device in which each of the test compositions and compositions of the present invention are evaluated is designed as a consumer product. The consumer product can be an automobile air freshener product (as shown in FIG. 9A, FIG. 9B) for evaporating a freshening composition in a vehicle interior space to deliver various benefits such as scent intensity control in the vehicle interior space. The consumer product can also be a room air freshener product (as shown in FIG. 4) for evaporating a freshening composition in a room in a domestic facility such as a toilet. Thus, the device and materials are designed to mimic the conditions in a vehicle interior space and a room interior space. However, it is envisioned that the device can be used in various applications to deliver a volatile composition to benefit an interior environment such as furniture for storing personal items in a home and a commercial facility, and the product can include, but is not limited to, consumer products such as air freshening products, air fresheners, deodorants, etc. Thus, in a variety of different applications where the interior environment has a different volume, such as a shoe cabinet, it will be appreciated that the equipment, materials and methods can be modified accordingly and the freshening composition of the present invention can be demonstrated to have improved fragrance intensity control within interior environments of different volumes.

[0118] Test Methods A. Test method for consistency variation of aroma characteristics ("SCC variation test method") The scent profile consistency variation ("SCC variation") of a volatile composition comprising a perfume mixture having top, middle, and bottom notes as defined herein refers to the variation of the perfume profile of the perfume mixture within 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 an interior space during different seasons (i.e., summer, fall, winter). The test method for determining the SCC variation of a volatile composition is as follows: 1) collecting volatile materials according to the headspace collection test method described herein; 2) analyzing the collected volatile materials according to the headspace analysis methods described herein; 3) Formula (IV), as depicted above and restated herein:

[0119]

number

[0120] B. Headspace Collection Test Method The headspace collection test method is conducted to collect evaporated volatile materials into an internal space or environment defined below, and includes the following: 1) activating the device to allow release of fragrance; 2) placing the device in a selected enclosed environment; a. Car simulation: interior volume is 2m 3 at three different temperatures: 5, 21, or 35°C, with the heater, fan, or air conditioning unit not turned on in the room; b. Toilet simulation: The interior volume is 2m 3 and at three different temperatures: 5, 21, or 35°C; 3) leaving the device for 1 hour; 4) Collecting the headspace in the chamber using Tenex tubing at different touch points; a. Car simulation: collection time is 2 minutes, touch points are two separate points (when entering the car, and 7 minutes after turning on the heater, cooler or fan); b. Toilet simulation: The collection time is 1 minute, the touch point is 1 (when entering the room), and the simulation is carried out according to the steps.

[0121] C. Headspace analysis by gas chromatography-mass spectrometry (GC-MS) The collected headspace is analyzed using a GC-MS setup to identify (based on characteristic retention times and m / z values) and quantify (based on normalized peak integrated areas) the evaporated different perfume raw materials (PRMs). PRMs are classified as either top notes, middle notes, bottom notes, or bulk materials. Top, middle, and bottom notes are defined as PRMs with saturated vapor pressures at 25°C of greater than 40.0 Pa (0.3 Torr), between 4.00 and 40.0 Pa (0.03 torr), and less than 4.00 Pa (0.03 torr), respectively. PRMs present at a weight percentage greater than 7% and with an odor detection threshold greater than 11 are classified as bulk materials regardless of vapor pressure.

[0122] The percentage of top notes that evaporates from all PRMs is calculated based on the following formula (VI):

[0123]

number

[0124] Similar calculations can be done to find the percentages of middle and bottom notes.

[0125] D. Fragrance weight loss measurement method The device of the present invention is characterized by the loss of the fragrance mixture from the volatile composition once the device is activated and over a long period of time thereafter. To determine the effectiveness of the RIS composition in improving the delivery of the fragrance mixture, the amount of the fragrance mixture released from the device can be looked at. Therefore, it is important to measure this value. For any volatile composition that wets the membrane, the ideal amount of evaporation of that composition occurs with the membrane in a fully exposed state. To determine the effectiveness of the RIS composition, the percentage of weight loss of the fragrance mixture in the first volatile composition (having the fragrance mixture with the RIS composition) and the second volatile composition (not including the RIS composition but having the same fragrance mixture as above) is looked at. However, the volatile composition can be composed of any number of materials.

[0126] For the calculation of the values ​​detailed herein, the following items are required: 1. Scale (Ohaus AA210 serial number 11131122540) or equivalent. 2. A housing of the present invention comprising a first wall and a second wall. 3. A device containing 5.5 mL of the fragrance composition (such as that shown in FIG. 4, 27 cm 2 A device containing 2 mL of the fragrance composition (as shown in FIG. 9A, having an evaporation surface area of ​​11 cm2). 2 (If adding the fragrance composition by weight, multiply the measured density by 5.5 mL or 2 mL to get the correct fill weight.) 4.3M Scotch Weld Applicator TC and Glue, #3797-TC or equivalent. 5. An evaporating rack or equivalent open tray (bread baking) rack with a covered top and shelves spaced at least 15 cm apart. 6. A room or equivalent to house the evaporation rack with the following measurements, airflow, temperature / relative humidity: a) Lab dimensions: 32 feet 4 inches long x 72 inches wide x 108 inches high, or a volume of 1,730 cubic feet; b) Airflow (intake and exhaust): Normal mode: Average intake air flow rate = 103.75 cubic feet per minute ±6% Average Displacement: 149.25 cubic feet per minute ±6% Resulting negative pressure difference: -45.5 Negative pressure indicates that the air being supplied to the lab from an adjacent hallway or room is being exhausted by the ventilation system. c) Temperature and percent relative humidity ·Average temperature: 23℃±0.1℃ Average percent relative humidity: 45%±0.5%

[0127] Determination of the percentage of cumulative weight loss of a flavor mixture 1. Fill the device with the volatile composition to provide a sealed cartridge that is not yet wet. The volatile composition cartridge may be punctured, for example, by cutting a hole to allow for the insertion of an 18 gauge needle. 2. Fill the device of Figure 4 with 5.5 mL of the fragrance composition, which corresponds to 5024 mg of the standard fragrance composition. Fill the device of Figure 9A with 2 mL of the fragrance composition, where 2 mL corresponds to 1.9 g. The volume may need to be adjusted based on the density of the desired composition. 3. Seal the insertion hole with hot melt adhesive. 4. Measure and record the weight of the equipment to three significant figures. 5. Insert the cartridge into the housing, ensuring the cartridge is properly seated within the housing to ensure proper airflow therethrough. 6. Activating the device to wet its membrane. Here, in the case of the device of FIG. 4, such activation is achieved by pressing the activation button of FIG. 4. In the case of the device of FIG. 9A, the device is activated by moving the clip from a first position before activation (FIG. 9A) to a second position after activation (FIG. 9B), for example by rotating 90 degrees relative to the first position. However, there may be other equivalent means for activating the device to wet the membrane. 7. Decide on a time and measure and record the weight of the cartridge (in mg) at the same time each day for at least 30 days. 8. Using the recorded times and their corresponding weights, the percentage of cumulative weight loss of the volatile composition is determined as detailed above.

[0128] Example I - Comparative fragrance compositions and fragrance compositions of the present invention A perfume mixture of PRMs ("Perfume Mixture A") shown in Table 8 was combined with an exemplary RIS composition shown in Table 9 to form Inventive Composition B to evaluate the MOI of a volatile composition according to formula (I) described above. However, it will be understood that any PRM capable of transitioning from a solid and / or liquid phase to a vapor phase may be used.

[0129] [Table 7]

[0130] [Table 8]

[0131] Table 10 below lists the MOI at 35° C. for each of the inventive perfume composition B and the comparative perfume composition C.

[0132] [Table 9]

[0133] 1.70 x 10 at 35 °C 4 The fragrance composition B of the present invention, which has an MOI of 1.09×10, exhibits that the addition of the RIS composition in an amount of 90% by weight of the composition reduces the fragrance intensity (MOI) by about 85% (i.e., an MOI reduction efficiency of 85% (comparative fragrance composition A's MOI of 1.09×10 5 ) which allows for improved scent delivery within the interior space, especially at the first touch point.

[0134] Example II Example II demonstrates how the RIS composition and the PRM act to provide a reduced vapor release rate of the PRM according to the present invention. It will be understood that the first, second, and third RIS components can be formulated in the RIS composition at any concentration. Specifically, each of the first, second, or third RIS components can be in any effective amount suitable for adjusting the fragrance intensity of the volatile composition including the perfume mixture.

[0135] Specifically, the results of Example II show that even if different perfume mixtures are used to formulate a volatile composition with a RIS composition having the same concentrations of first, second, and third RIS components, and the RIS composition is at the same concentration relative to the weight of the volatile composition, the same technical result of an improved odor profile is achieved based on the similar slope L of Figure 12 and slope P of Figure 13. Furthermore, the different gradients of the slopes of the graphs show that since evaporation is driven based on vapor pressure, the compositions of the present invention containing RIS components evaporate preferentially over their respective targets, resulting in reduced evaporation rates and therefore lower odor intensity under all temperatures and airflows, compared to the comparative composition having only perfume.

[0136] Table 11 below lists the ingredients in the comparative and inventive samples evaluated by Test Method E over a consecutive four week period, with the perfume evaporation results summarized in Table 12 and shown graphically in Figure 12. Table 13 below lists the ingredients in the comparative and inventive samples evaluated by Test Method D over a consecutive four week period, with the perfume evaporation results summarized in Table 14 and shown graphically in Figure 13.

[0137] Figures 12 and 13 are graphs plotting perfume weight loss measurements of comparative and inventive samples against time over a consecutive four week period. A line is drawn connecting the peak perfume weight loss at week 1 and the perfume weight loss at week 4 for each of the comparative and inventive samples to define a slope with a gradient, which is labeled in Figures 12 and 13 and in the table below. The slope gradient is calculated for each slope, as shown below. A slope with a higher slope gradient value corresponds to a steeper slope compared to a slope with a lower slope gradient value.

[0138] [Table 10]

[0139] [Table 11]

[0140] Referring to FIG. 12, the slope J of Comparative Sample 1 has a similar steepness to the slope K of Comparative Sample 2, even though Comparative Sample 2 has a 50% reduced concentration of the perfume mixture X. Specifically, the slope of the slope J is 145, and the slope of the slope K is 135. The steepness indicates that the fragrance intensity of Comparative Sample 2 is not significantly reduced. In contrast, the slope L of Inventive Sample 3 has a gentler slope (slope=89) compared to the slopes of the slopes J and K, indicating that the fragrance intensity decreases over the period when the RIS composition is added to the volatile composition in an amount of 30% by weight of the volatile composition. Furthermore, in Inventive Sample 4, the RIS composition is added in an amount of 60% by weight of the volatile composition, in which case the slope of the slope M decreases (slope=42) compared to Inventive Sample 3.

[0141] [Table 12]

[0142] [Table 13]

[0143] Referring to Figure 13, the slopes N and O of Comparative Samples 5 and 6 show similar gradient patterns, i.e., steep gradients, as Comparative Samples 1 and 2. That is, when the level of perfume mixture Y is reduced in Comparative Sample 5, the change in the slope gradient is relatively small. In contrast, the slopes P and Q of Inventive Samples 7 and 8, respectively, have gentle gradients, indicating a decrease in perfume weight loss and a corresponding decrease in fragrance intensity. Furthermore, in Inventive Sample 8, the RIS composition is added in an amount of 60% by weight of the volatile composition, in which case the gradient of the slope Q (slope gradient = 27) is decreased compared to the slope gradient of Inventive Sample 7 (slope gradient = 62).

[0144] Overall, the above results of the inventive composition according to the present invention show that by providing the inventive air freshening product according to the present invention to the interior environment, the technical effect of providing improved fragrance delivery by reducing the fragrance intensity at high temperatures is achieved. As a result, by preventing high fragrance intensity at the first touch point, the fragrance profile becomes more consistent and the longevity of the air freshening composition is improved accordingly, thereby making it possible to obtain the dual benefits of freshness and product longevity in the interior environment. The PRMs used in producing perfume mixtures X and Y are not disclosed by the manufacturers. However, since perfume mixtures X and Y contain different combinations of PRMs and the slopes of the comparative samples are similar in their gradients, it will be understood that any PRM that can transfer from a solid and / or liquid phase to a gas phase can be used.

[0145] Example III Example III demonstrates how the RIS composition and PRM work to provide the improved scent profile consistency variation ("SCC variation") of the PRM to the volatile composition according to the present invention under ambient airflow conditions in the interior space of a vehicle (automobile), i.e., in a parked car. Table 15 below lists the non-functional perfume raw materials of perfume mixture B used in the comparative sample and the inventive sample, which were evaluated according to the SCC test method over a test period of consecutive seasons of the year, i.e., summer to fall to winter. Table 16 below lists the components of each of the comparative sample and the inventive sample, and the SCC variation results are shown in Table 17 below.

[0146] In summary, the results of Example III demonstrate that automotive air freshening compositions comprising a RIS composition and a non-functional perfume ingredient have improved consistency of scent profile across seasons and under parked conditions compared to a volatile comparison composition without a RIS composition by having lower SCC variability, as described below.

[0147] [Table 14]

[0148] [Table 15]

[0149] [Table 16]

[0150] Referring to Table 17, inventive sample 10 has an SCC variability of 9.7%, which is less than 10% and lower than the SCC variability (15.6%) of comparative sample 9. The improvement in SCC variability of inventive sample 10 is also visually shown in Figure 14A when compared to Figure 14B described below.

[0151] Figure 14A is a corresponding graph of the results for Inventive Sample 10 in Table 17. Figure 14B is a corresponding graph of the results for Comparative Sample 9 in Table 17. As shown in Figure 14A, Inventive Sample 10 has a top note profile 10T, a middle note profile 10M, and a bottom note profile 10B, which are closer to each other than the top note profile 9T, the middle note profile 9M, and the bottom note profile 9B of Comparative Sample 9.

[0152] Sample 10 of the present invention had an SCC variation of 8.6%, which is less than the 15.6% SCC variation of Comparative Sample 9, indicating that the volatile composition including the RIS composition has improved consistency of scent profile across seasons and parking conditions compared to the volatile composition not including the RIS composition.

[0153] Example IV Example IV demonstrates how the RIS composition and PRM work to provide the improved scent profile consistency variation ("SCC variation") of the PRM to the volatile composition according to the present invention under moving airflow conditions in the interior space of a vehicle (automobile), i.e., in a car under driving conditions.Using the RIS composition of Table 9 and the perfume mixture B of Table 15, the comparative sample and the sample of the present invention are evaluated according to the SCC test method over a test period of consecutive seasons of the year, i.e., from summer to autumn to winter.Table 18 below lists the components of each of the comparative sample and the sample of the present invention, and the SCC variation results are shown in Table 19 below.

[0154] In summary, the results of Example IV show that automotive air freshening compositions comprising a RIS composition and non-functional perfume ingredients have improved consistency of scent profile across seasons and driving conditions, as compared to a volatile comparison composition without a RIS composition, by having lower SCC variability, as described below.

[0155] [Table 17]

[0156] [Table 18]

[0157] Referring to Table 18, inventive sample 11 has an SCC variability of 8.6%, which is less than 10% and lower than the SCC variability (10.1%) of comparative sample 12. The improvement in SCC variability of inventive sample 11 is also visually shown in Figure 15A when compared to Figure 15B described below.

[0158] FIG 15A is a corresponding graph of the results of inventive sample 11 in Table 19. FIG 15B is a corresponding graph of the results of comparative sample 12 in Table 19. As shown in FIG 15A, inventive sample 11 has top note profile 11T, middle note profile 11M, and bottom note profile 11B, which are closer to each other than top note profile 12T, middle note profile 12M, and bottom note profile 12B of comparative sample 12.

[0159] Sample 11 of the present invention had an SCC variation of 8.6%, which is less than the SCC variation of 10.1% for Comparative Sample 12, indicating that the volatile composition including the RIS composition has improved consistency of odor characteristics under driving conditions across seasons compared to the volatile composition not including the RIS composition.

[0160] Example V Example V demonstrates how the RIS composition and PRM work to provide improved odor profile consistency variation ("SCC variation") of PRM to volatile compositions according to the present invention under moving airflow conditions in the interior space of a vehicle (automobile), i.e., in a car with substantially the same driving conditions as those in Example IV. Table 20 below lists non-functional perfume raw materials of perfume mixture C that are different from perfume mixture B. Perfume mixture C is used in comparative samples and inventive samples that are evaluated according to the SCC test method over a test period of consecutive seasons of the year, i.e., summer to fall to winter, showing that the RIS composition can be added to any PRM mixture of non-functional perfume raw materials to provide improved odor profile consistency variation. Table 21 below lists the components of each of the comparative samples and inventive samples, and the SCC variation results are shown in Table 22 below.

[0161] In summary, the results of Example IV show that automotive air freshening compositions comprising a RIS composition and different mixtures of non-functional fragrance ingredients also have lower SCC variability, as described below, thereby improving the consistency of scent profile across seasons and driving conditions, as compared to a volatile comparison composition not comprising a RIS composition.

[0162] [Table 19]

[0163] [Table 20]

[0164] [Table 21]

[0165] Referring to Table 22, inventive sample 13 has an SCC variability of 6.5%, which is less than 10% and lower than the SCC variability (11.1%) of comparative sample 14. The improvement in SCC variability of inventive sample 13 is also visually shown in Figure 16A when compared to Figure 16B described below.

[0166] Figure 16A is a corresponding graph of the results for Inventive Sample 13 in Table 22. Figure 16B is a corresponding graph of the results for Comparative Sample 14 in Table 22. As shown in Figure 16A, Inventive Sample 13 has a top note profile 13T, a middle note profile 13M, and a bottom note profile 13B, which are closer to each other than the top note profile 14T, the middle note profile 14M, and the bottom note profile 14B of Comparative Sample 14.

[0167] Inventive Sample 13 had an SCC variation of 6.5%, less than the 11.1% SCC variation of Comparative Sample 14, indicating that a volatile composition having a RIS composition with an optional perfume mixture of non-functional perfume ingredients has improved consistency of scent characteristics across seasons and under driving conditions compared to a volatile composition without a RIS composition.

[0168] Example VI Example VI demonstrates how the RIS composition and PRM work to provide the volatile composition according to the present invention with the improved scent profile consistency variation ("SCC variation") of the PRM under ambient airflow conditions in the interior space of a home (room, toilet).Table 23 below lists the non-functional perfume raw materials of perfume mixture B used in the comparative sample and the inventive sample, which were evaluated according to the SCC test method over a test period of consecutive seasons of the year, i.e., summer to fall to winter.Table 24 below lists the components of each of the comparative sample and the inventive sample, and the SCC variation results are shown in Table 25 below.

[0169] In summary, the results of Example VI demonstrate that a room air freshening composition comprising a RIS composition and a non-functional fragrance ingredient has a lower SCC variability, as described below, and therefore a volatile comparative composition that does not contain a RIS composition, over a 2m window in any season. 3 This shows that the consistency of the scent profile is improved under ambient environmental conditions in a residential interior space having a volume of 100 ml (e.g., a toilet, entrance interior space in FIG. 11).

[0170] [Table 22]

[0171] [Table 23]

[0172] [Table 24]

[0173] Referring to Table 22, inventive sample 15 has an SCC variability of 6.5%, which is less than 10% and lower than the SCC variability (10.9%) of comparative sample 16. The improvement in SCC variability of inventive sample 15 is also visually shown in Figure 17A when compared to Figure 17B described below.

[0174] Figure 17A is a corresponding graph of the results for Inventive Sample 15 in Table 25. Figure 17B is a corresponding graph of the results for Comparative Sample 16 in Table 25. As shown in Figure 17A, Inventive Sample 15 has top note profile 15T, middle note profile 15M, and bottom note profile 15B, which are closer to each other than top note profile 16T, middle note profile 13M, and bottom note profile 16B of Comparative Sample 16.

[0175] Sample 15 of the present invention has an SCC variation of 6.5%, i.e., less than the 10.9% SCC variation of Comparative Sample 16, indicating that a volatile composition having a RIS composition with any fragrance mixture has improved consistency of scent characteristics in an interior space across seasons relative to a volatile composition without a RIS composition.

[0176] The overall results above show that air freshening products with RIS compositions improve the consistency of scent profile (which can be affected by temperature changes), reduce scent intensity, and reduce SCC variation during different seasons and in interior spaces during the temperature range of 5-35° C. The results also show that the technical effect can be achieved for any device design, any membrane evaporative surface area size, any fragrance mixture, and under different airflow conditions (in a vehicle).

[0177] Dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

[0178] All documents cited herein, including any cross-referenced or related patents or patent applications, and any patent applications or patents to which this application claims priority or benefit, are incorporated herein by reference in their entirety, unless expressly stated to the contrary. The citation of any document shall not be deemed to be prior art to any invention disclosed or claimed herein, or to teach, suggest or disclose such invention, either alone or in combination with any other reference(s). Furthermore, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.

[0179] While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims

1. A volatile composition comprising: (i) greater than 30% by weight of the volatile composition, the aromatic hydrophobic material comprising one or more volatile compounds; (ii) a scent intensity modifying (RIS) composition in an amount greater than 20% by weight of the volatile composition, a first fragrance intensity modifying component (RIS component) having a high mean vapor pressure (VP); A second RIS component having a medium average VP, and a fragrance intensity modifying (RIS) composition comprising at least two of the third RIS components having a low average VP; Including, A volatile composition, wherein the average VP of each of the one or more volatile compounds 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.

2. 10. 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. 3. The volatile composition of claim 2, wherein the MOI reduction efficiency is 10% to 100%, preferably 25% to 65% at 35°C.

4. The volatile composition comprises: The volatile composition of any one of claims 1 to 3, comprising 30% to 80% of the RIS composition by weight of the volatile composition.

5. The RIS composition comprises: at least 5% by weight of said first RIS component of said RIS composition; at least 20% by weight of the RIS composition of the second RIS component; and The volatile composition of any one of claims 1 to 4, comprising at least two of the third RIS components at least 10% by weight of the RIS composition.

6. the first RIS component comprises an average vapor pressure (VP) of greater than 40.0 Pa (0.3 Torr) at 25° C.; the second RIS component comprises an average VP of 0.07 to 0.3 Torr at 25° C.; the third RIS component comprises an average VP of 0.0099 to 0.07 Torr at 25° C.; 6. The volatile composition according to any one of claims 1 to 5, 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, preferably the first RIS component is 3-methoxy-3-methylbutan-1-ol (MMB), the second RIS component is dimethylhexanedioate (DMA), and the third RIS component is 1-(3-methoxypropoxy)propan-1-ol (DPM).

7. 7. The volatile composition according to any one of claims 1 to 6, wherein the first RIS component is an alcohol-containing compound, preferably 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-hydroxypropanoate, 2-butoxyethanol, ethyl 3-hydroxybutanoate, 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, and even more preferably MMB.

8. 8. The volatile composition according to any one of claims 1 to 7, wherein the second RIS component is an ester-containing compound, preferably selected from the group consisting of dimethyl hexanedioate (DMA), ethyl 3,5,5-trimethylhexanoate, dimethyl butanedioate, diethyl propanedioate, ethyl 3-acetyloxyhexanoate, methyl 5-acetyloxyhexanoate, 3-O-butyl 1-O-ethylpropanedioate, dipropan-2-yl hexanedioate, (4-methoxyphenyl)methyl formate, ethyl 3-hydroxyhexanoate, and mixtures thereof, more preferably selected from the group consisting of DMA, ethyl 3-acetyloxyhexanoate, methyl 5-acetyloxyhexanoate, 3-O-butyl 1-O-ethylpropanedioate, and mixtures thereof, and even more preferably DMA.

9. 9. The volatile composition according to any one of claims 1 to 8, wherein the third RIS component is an alcohol-containing compound, preferably 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, and even more preferably DPM.

10. 10. The volatile composition according to any one of claims 1 to 9, wherein the scented hydrophobic material comprises a CLogP of greater than 0.01, preferably from 0.01 to 6.5, more preferably from 0.5 to 5.

5.

11. The fragrance hydrophobic material is a non-functional perfume mixture comprising one or more top notes, one or more middle notes, and one or more bottom 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 bottom notes in the non-functional perfume mixture comprises an odor detection threshold (ODT) of less than 20; the volatile composition is characterized by a scent characteristic consistency variation ("SCC variation") of less than 10% within a temperature range of 5 to 35°C; The SCC variation is expressed by the following formula: [0010] (In the formula, Max% is the highest % within the temperature range of 5 to 35°C, Min % is the lowest % within the temperature range of 5 to 35° C. the one or more top notes have a mean vapor pressure (VP) of greater than 40.0 Pa (0.3 Torr) at 25° C., the one or more middle notes have an average VP of from 4.00 to 40.0 Pa (0.03 to 0.3 Torr) at 25° C.; 11. The volatile composition of any one of claims 1 to 10, wherein the one or more bottom notes comprise an average VP of less than 4.00 Pa (0.03 Torr) at 25°C.

12. 11. The volatile composition of claim 10, wherein at least 25%-65% of the one or more top notes, middle notes, and bottom notes comprise an odor detection threshold (ODT) of less than 20.

13. The volatile composition according to any one of claims 1 to 12, wherein the volatile composition is a fragrance composition, preferably a freshening composition, more preferably an air freshening composition for delivering a fragrance to an interior space, and wherein the air freshening composition is preferably comprised in a non-energized air freshener, more preferably a continuous non-energized air freshener.

14. 1. A device for delivering a volatile composition into an interior space, said device comprising: A reservoir for containing a volatile composition according to any one of claims 1 to 13, the reservoir comprising an opening, the volatile composition comprising a liquid phase; a delivery member configured to contain and evaporate the liquid phase of the volatile composition therefrom; wherein said interior space is one of a vehicle interior space, an interior space of a residential environment, a toilet, an interior space of a commercial environment, preferably said interior space is located at an entrance to a residential environment, preferably said delivery member is selected from the group consisting of a wick, a membrane, a gel, a porous or semi-porous substrate, preferably said delivery member is a membrane, more preferably a microporous membrane.

15. 1. An air freshening product comprising a volatile composition, the volatile composition comprising: (i) a non-functional perfume mixture comprising one or more top notes, one or more middle notes, and one or more bottom 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 bottom notes in the non-functional perfume mixture have an odor detection threshold (ODT) of less than 20; (ii) a fragrance intensity modification (RIS) composition by weight of the volatile composition, a first fragrance intensity modifying component (RIS component) having a high mean vapor pressure (VP); A second RIS component having a medium average VP, and a fragrance intensity modifying (RIS) composition comprising at least two of the third RIS components having a low average VP; Including, an average VP of each of the one or more top notes, the one or more middle notes, and the one or more bottom notes is lower than a corresponding 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; the volatile composition is characterized by a scent characteristic consistency variation ("SCC variation") of less than 10% within a temperature range of 5 to 35°C; The SCC variation is expressed by the following formula: [0025] (In the formula, Max% is the highest % within the temperature range of 5 to 35°C, Min % is the lowest % within the temperature range of 5 to 35° C. the one or more top notes comprise an average vapor pressure (VP) greater than 40.0 Pa (0.3 Torr) at 25° C.; the one or more middle notes having an average VP of from 4.00 to 40.0 Pa (0.03 to 0.3 Torr) at 25° C.; 13. An air freshening product, wherein said one or more bottom notes comprise an average VP of less than 4.00 Pa (0.03 Torr) at 25°C.

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